Avaya EE Networking Operations Guide

Avaya EE Networking Operations Guide
Enterprise Edge Networking
Operations Guide
1-800-4 NORTEL
www.nortelnetworks.com
© 1999 Nortel Networks
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Enterprise Edge Attendant Console User Guide
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Contents
Chapter 1
Introducing Enterprise Edge 7
Routing and IP Services 7
System Software 8
Chapter 2
Using Enterprise Edge Unified Manager 9
Understanding Unified Manager 9
Changing the appearance of Unified Manager 12
Adjusting Unified Manager views 12
Navigating between views 13
Changing column order 14
Generating statistics 15
Menu descriptions 16
Chapter 3
Using Enterprise Edge Services 17
Enterprise Edge required parameters 17
Setting up an Enterprise Edge IP Address 18
Setting up web-based administration 19
Browser settings: 19
Logging on to Enterprise Edge 20
Logging off Enterprise Edge 21
Powering down the Enterprise Edge server 21
Rebooting the Enterprise Edge server 21
IP Routing 22
IP Routing Overview 22
Enterprise Edge IP routing specifics 23
IP Addressing Overview 23
Static Routing 24
Routing Information Protocol (RIP) 24
Enabling RIP on Network Interfaces 24
Packet Filtering 24
LAN-to-LAN Fast Path Routing 25
Dynamic Host Configuration Protocol (DHCP) 25
Automatic Configuration using a DHCP server 26
Guidelines for Using DHCP 26
Domain Name Service (DNS) 27
Guidelines for Using DNS 27
Web Caching/Proxy 28
Guidelines for Using Web Caching/Proxy 28
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4 Contents
Simple Network Management Protocol (SNMP) 29
SNMP Overview 29
Guidelines for Using SNMP 29
Quality of Service 30
QoS overview 30
DiffServ Networks 31
Legacy Network 31
Admission Control 32
Packet Marking for DiffServ Networks 33
Port Range Setting for Legacy Networks 35
Relationship between the QoS Module and the VoIP QoS Monitor 36
Enterprise Edge QoS Restrictions and Defaults 36
LAN Connections 37
WAN Connections 37
WAN overview 37
Permanent WAN Connections 38
Frame Relay 38
PPP 38
Backup Up WAN Connection 39
Backup WAN Links 40
Chapter 4
Configuring Unified Manager Settings 41
Accessing system, resources, services and management settings on Unified
Manager 42
Configuring system settings 42
System name 43
System performance graphs and tables 46
System Fault Alarm Banner 47
System name, date and time 49
Chapter 5
Configuring Resources Settings 51
LAN 52
WAN primary links 56
WAN Primary Link Summary Parameters 58
WAN Primary Link Line Parameters 59
WAN Primary Link Frame Relay Parameters 61
WAN Primary Link PPP parameters 65
WAN Primary Link performance graphs and tables 66
WAN Backup Links 67
WAN Backup Link Summary Parameters 68
WAN Backup Link Parameters 69
WAN Backup Access Parameters 71
MSC 72
Telephony 73
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Contents 5
Chapter 6
Configuring Services Settings 75
DHCP 76
DHCP LAN 78
DNS 84
Routing 85
LAN Routing 86
WAN Routing 99
SNMP 101
SNMP Community List, Manager List, and Trap Community List 103
QoS 108
QoS performance graphs and tables 112
QoS filters 113
QoS Port Ranges 116
VoIP gateway 118
VoIP local and remote gateways 119
QoS monitor 124
QoS Monitor Mean Opinion Score 125
Web cache 126
NetLink Manager 127
Voice Record 129
Voice Record report settings 130
Voice Record report options 132
Voice Record market parameters 134
Voice Record PreFix 136
Voice Record Access/Suppress 137
TAPI Service Provider 138
Voice Service 140
Alarm Service 142
Voice Mail 143
Chapter 7
Configuring Management Settings 145
Configuring Management Settings 145
User Manager 145
Alarm Manager 148
Chapter 8
Diagnostics and Utilities 151
Saving System Settings 151
Downloading System Settings 152
Graphs and tables 154
Generating Statistics 154
Sample Rate 155
Error Messages 156
User Actions 156
Errors List 156
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MIB II Information 161
Counters Shown at LAN and WAN Interface Levels 161
ICMP Counters 162
UDP Counters 163
TCP Counters 163
QoS Session Counters 163
QoS Best Effort Traffic Counters 163
QoS Dropped Packets Counter 164
QoS Graph Counters 164
QoS Best Effort Queue Counters 164
Appendix A: Troubleshooting 165
How to Get Help 165
Troubleshooting 165
Appendix B: Setting Up Remote Routers 167
Creating an Outbound Traffic Filter 167
Sample Criteria, Ranges, and Actions for UDP Filtering 168
Glossary 169
Index 177
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Introducing Enterprise Edge
1
Routing and IP Services
Enterprise Edge supports the following routing and IP Services:
•
Routing Services
– IP Routing Protocol
– RAS Service and Dial In Capabilities for Management Purposes Only
– RIP
– Packet Filtering
•
IP Services:
– DHCP
– DNS
– Web Caching
•
VoIP (voice over IP) Service
VoIP is a term used in IP telephony for a set of facilities that manage voice
information delivery using Internet Protocol (IP). VoIP sends voice information
in digital form in discrete packets rather than in the traditional circuitcommitted protocols of the public switched telephone network (PSTN). A
major advantage of VoIP and Internet telephony is that it avoids ordinary telephone service tolls.
VoIP derives from the VoIP Forum which promotes the use of ITU-T H.323 as
the standard for sending voice (audio) and video using IP on the public Internet
and within intranets. The VoIP Forum also promotes the use of directory service
standards so that users can locate other users and the use of touch-tone signals
for automatic call distribution and voice mail.
In addition, VoIP uses the real-time protocol (RTP) over IP to help ensure that
packets get delivered in a timely way. Using public networks, it is currently
difficult to guarantee Quality of Service (QoS). Better service is possible with
private networks managed by an enterprise or by an Internet telephony service
provider (ITSP).
When using VoIP a business positions Enterprise Edge as a gateway. The
gateway receives packetized voice transmissions from users within the
company and then routes them to other parts of its intranet (local area or wide
area network) or sends them over the public switched telephone network.
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System Software
Enterprise Edge provides services to end-users in a small office environment. The
following services are managed through Enterprise Edge Unified Manager, a webbased user interface:
•
IP Services
•
VoIP Service
•
Telephony Functions:
– PBX Call Processing
– Voice Mail
– Call Center Solution with Auto-Attendant
•
Management Server Module
•
QoS Module
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Using Enterprise Edge Unified Manager
2
This chapter introduces the major elements on the Enterprise Edge Unified
Manager graphical user interface including navigation and menu descriptions.
Unified Manager lets you view and change configuration settings for:
•
IP Services
•
VoIP Service
•
Telephony Functions
•
Management Server Module
•
QoS Module
Understanding Unified Manager
The Unified Manager main view shows the Unified Manager view including:
•
•
The menu where users click commands
The navigation tree used for navigating between views and configuration
screens
•
The information panel view.
Unified Manager main view
menu
navigation
tree
keys
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As you navigate the menu tree shown in Unified Manager main view on page 9,
Unified Manager displays configuration screens. The screens contain settings that
you can edit to configure Enterprise Edge settings.
Enterprise Edge uses boxes and dialog boxes for configuring settings. Boxes let you
to edit and save data line by line. Each time you tab to the next line, the previous
line’s values are saved. See Unified Manager main view on page 9 for an example.
If a value is invalid, a beep sounds and an error message appears to alert you of the
error. The dialog box format allows you to enter text in boxes and save the settings
by clicking the Save button. See Unified Manager main view on page 9 for an
example.
The configuration screen contains:
•
the title of the screen
•
boxes
•
scroll bars, when needed
•
Save and Cancel buttons
To configure settings:
1. Click keys on the navigation tree or click commands on the menu.
The corresponding dialog box or screen appears.
2. Type the information in the appropriate box.
3. Click the Save button to save changes
or
click the Cancel button to close the configuration screen without saving any
changes.
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The following figure shows boxes and a scroll bar:
boxes
scroll
bar
To make changes to boxes:
1. Click keys on the navigation tree until the configuration screen appears.
See Unified Manager main view on page 9.
2. Type the updates in the appropriate boxes and follow the syntax that appears
next to the box.
If there is an error, a beep sounds and an error message appears.
3. Press the Tab key to move to the next box.
Pressing the Tab key saves changes in the current box and moves the cursor to
the next box..
Note: In some instances you must press the Tab key several times to move the
cursor to the next box.
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Changing the appearance of Unified Manager
You can choose from a Windows, Motif, or Metal look and feel.
To change the appearance of Unified Manager:
1. Click View and then click Windows, Motif, or Metal.
The view changes to a Windows, Motif, or default Metal appearance.
Changing look and feel
Adjusting Unified Manager views
The Enterprise Edge views are adjustable. You can resize Unified Manager and
configuration screens.
To resize a view or screens:
1. Move the pointer over any edge until it changes to a double-headed arrow.
2. Drag the edge of the screen to the desired location and release the mouse.
adjustable edges
adjustable edges
on navigation
tree
adjustable
columns
Note: Each time you exit Unified Manager, the display returns to the default
configuration.
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Using Enterprise Edge Unified Manager 13
Navigating between views
Choosing items in the navigation tree is the primary method for navigating the
Unified Manager menu.
The navigate between views:
1. Point to an item in the navigation tree and click the key to expand to the
desired view.
2. On the navigation tree, click the name of the item to display specific
information.
In this example, WAN is selected.
3. Click an item from the column to see information about it.
In this example, WAN1 is selected.
The resource information appears.
keys
click to
view
click to view
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Changing column order
You can change the order and size of data views in Unified Manager. You can
customize the view by resizing column widths or by reordering columns.
To change column order:
1. Click the column that you want to move.
2. Drag and drop the column to the appropriate location.
To change column width:
1. Move the pointer over any edge until it changes to a double-headed arrow.
2. Pull the column edge to the appropriate location.
column
heading
column edge
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Using Enterprise Edge Unified Manager 15
Generating statistics
Enterprise Edge provides statistical information on Enterprise Edge server
throughput and other performance-related information. The data is formatted in a
Statistical chart or Statistical table format.
For additional performance information and instructions, see Graphs and tables on
page 154.
Statistical chart
Statistical table
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Menu descriptions
You access Enterprise Edge functions using the menu. The menu is dynamic which
means that the menu commands change depending on the action a user takes.
Enterprise Edge menu
menu
Menu descriptions
Use
To
Group
View the system, resources, services, and management.
Edit
Edit parameters.
Configuration
Access configuration dialog boxes and screens
Performance
Access performance graphs and tables.
Fault
Access fault management settings.
Report
Generate a report.
Tools
Use Enterprise Edge tools.
Logoff
Log off the Enterprise Edge server.
View
Change the appearance from Windows, Motif or Sun Swing.
Help
Access online help.
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Using Enterprise Edge Services
3
This chapter includes information on:
•
Enterprise Edge required parameters
•
Setting up an Enterprise Edge IP Address
•
Setting up web-based administration
•
Logging on to Enterprise Edge
•
Logging off Enterprise Edge
•
Powering down the Enterprise Edge server
•
Rebooting the Enterprise Edge server
•
IP routing
•
Dynamic Host Configuration Protocol (DHCP)
•
Domain Name Server (DNS) Service
•
Web Caching/Proxy
•
Simple Network Management Protocol (SNMP)
•
Quality of Service (QoS)
•
Using Traffic Filters
•
Using Protocol Prioritization Queues
•
LAN Connections
•
WAN Connections
Enterprise Edge required parameters
The Enterprise Edge quick start module provides quick access to the parameters
necessary for the Enterprise Edge server to become active online. However, you
need to enter a minimum set of parameters within the quick start module. For more
information, see the Enterprise Edge Installation Guide.
Obtain the required parameter values from an Internet Service Provider (ISP) or
corporate network administrator.
Note: Nortel Networks recommends that after you powered on the Enterprise
Edge server and connect with either an RS-232 or an Ethernet port,
configure all the required parameters at the same time. After you configure
the parameters, reboot the Enterprise Edge server from either the console or
the graphical user interface (GUI).
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Users must enter the following parameters:
•
Initial IP and mask for all network interfaces
•
Primary (and optional secondary) DNS servers
•
Default next hop router
•
Fractional T1 channel numbers (if you are using fractional TI)
•
System name
•
WAN Link Protocol
•
Frame Relay DLCI / CIR (if applicable)
•
V.90 modem dial-up username and password (if applicable)
•
V.90 modem dial-up phone number and optional alternate phone number (if
applicable)
The following table describes the Enterprise Edge server connectivity options.
Field
Definition
HTTP
You can launch your JAVA-enabled browser to connect to the Enterprise Edge
server IP address that connects to your PC. This displays the log in screen. See
the Enterprise Edge log on screen on page 20.
TTY
You can connect a dumb terminal to the console of the Enterprise Edge server
through an RS-232 cross-over cable, or, you can use Hyperterminal from Win95/
Win NT systems. Refer to the installation guide for console menus.
Setting up an Enterprise Edge IP Address
To manage the Enterprise Edge server using a web browser or a Telnet connection,
you must first set up the IP address. The Enterprise Edge server LAN interface is
shipped with default IP 10.10.10.1 and mask 255.255.255.0.
To set up the Enterprise Edge server initial IP address using a RS-232 port:
1. Turn on the Enterprise Edge server power switch.
2. Connect a PC or laptop computer to the Enterprise Edge server RS-232 port.
3. Start a hyper terminal on the PC or laptop computer.
4. Enter the LAN/WAN IP address and other parameters.
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To set up the Enterprise Edge server IP address using a LAN:
1. Turn on the Enterprise Edge server power switch.
2. Connect a laptop to the Enterprise Edge server by Ethernet (back-to-back by
using a crossover cable to avoid disturbing the corporate LAN).
3. Set your PC or laptop computer IP address to 10.10.10.2 with a mask
255.255.255.0.
4. Start a web browser on your laptop with a URL 10.10.10.1.
Setting up web-based administration
To establish web-based administration, a workstation needs to be set up as an
Enterprise Edge client with Internet Explorer 4.0 or greater and a JAVA Virtual
Machine (JVM) 5.0.0.2922 or greater installed.
To install JVM on a workstation, search the Microsoft information web page for
instructions.
This minimum PC requirements are discussed in Enterprise Edge specifications.
Note: The ideal display for a monitor attached to Enterprise Edge is 1280 x 1024.
Browser settings:
Set your browser as follows:
Program
Required Settings
Netscape Communicator 4.5
or greater
Click Settings: Edit: Preferences
Category Advanced
set Enable Java: On
set Category: Cache
set Cached document comparison: Every Time
Internet Explorer 4.0 or
greater
Choose Views: Internet Options Category: General: Temporary
Internet Files: Settings
click Check for newer versions of stored pages: Every visit to the
page
set Advanced Java VM
set Java JIT compiler enabled
Enterprise Edge OA&M allows multiple users to log on. If each user that logs on
attempts to configure the same or related subsystems, the most recent modification
remains in effect and overwrites changes by another administrator. Administrators
must be careful to not make any unintended changes.
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Nortel Networks recommends that only one administrator user account is
maintained in Enterprise Edge and access is closely controlled. Administrators must
coordinate changes to avoid unintended changes.
Note: Do not use proxy servers while configuring Enterprise Edge using WEB
OA&M. You must disable proxies and directly access Enterprise Edge. The
configuration procedures depend on the browser and version.
Logging on to Enterprise Edge
To log on to Enterprise Edge:
1. Open a web browser.
2. In the address, type the Enterprise Edge IP Address in a web browser.
For example: HTTP://10.10.10.1
3. Press the Enter key.
The Enterprise Edge log on screen appears
4. In the Login box, type your log on name.
The default log on name is supervisor.
5. In the Password box, type your password.
The default password is super.
6. Click the Configure button.
The Enterprise Edge Unified Manager software starts. Consult your system
administrator for appropriate information. Depending on your system, Unified
Manager software can take up to several minutes to initialize.
Enterprise Edge log on screen
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Using Enterprise Edge Services 21
The log on screen includes these boxes:
Field
Definition
Login
The user name. The name can contain up to 50 case-sensitive alphanumeric
characters. The default log in name is supervisor.
Password
The Enterprise Edge password. The password name can contain up to 12 casesensitive alphanumeric characters. The default password is super.
Configure
lets you access Enterprise Edge configuration.
Upload
lets you upload and apply Enterprise Edge settings and system settings.
Download
lets you download and save Enterprise Edge settings and system settings.
Logging off Enterprise Edge
To log off Enterprise Edge:
1. Click the MSP icon on the left frame.
2. On the menu click Logoff and then click Logoff.
A message appears that asks you to confirm your request to log off.
3. Click the Yes button to log off.
Powering down the Enterprise Edge server
To power down the Enterprise Edge server:
1. From the menu of the console, quit Enterprise Edge.
2. Remove the power connection.
Rebooting the Enterprise Edge server
To reboot the Enterprise Edge server:
1. Click Logoff and then click Reboot.
A message appears that asks you to confirm your request to reboot.
2. Click the Yes button to reboot.
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IP Routing
This section includes information on:
•
IP Routing Overview
•
Enterprise Edge IP routing specifics
•
IP addressing overview
•
Static routing
•
Routing Information Protocol (RIP)
•
Packet Filtering
– source address
– destination address
– IP Protocol ID
– TCP Port
– UDP Port
– ICMP Type
– ICMP Code
•
LAN to WAN routing
– managing traffic using Interrupt Modulation
•
LAN to LAN routing
– Fast Path Routing
IP Routing Overview
The Internet Protocol (IP) is the protocol used on the Internet to send data is sent
from one computer to another. Each computer on the Internet, called a "host", has
at least one address that identifies it from all other computers on the Internet. When
you send or receive data (for example, an e-mail or a web page), the message gets
divided into units called packets. Each of these packets contains both the sender's
Internet address and the receiver's Internet address.
A packet is first sent to a router that understands reads the destination address and
forwards the packet to an adjacent router that reads the destination address.This
routing process continues across the Internet until one router recognizes the packet
as belonging to a computer in its immediate neighborhood or domain. That router
forwards the packet to the computer whose address is specified.
Because a message is divided into a number of packets, each packet can, if
necessary, be sent by a different route across the Internet. Packets can arrive in a
different order than the order they are sent. Another protocol, the Transmission
Control Protocol (TCP) to put the packets in the right order.
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Using Enterprise Edge Services 23
IP is a connectionless protocol, which means that there is no established connection
between the end points that communicate. Each packet that travels through the
Internet is treated as an independent unit of data without any relation to another unit
of data. The packets get put in the right order because TCP, the connection-oriented
protocol, keeps track of the packet sequence in a message. In the Open Systems
Interconnection (OSI) communication model, IP is in layer 3, the Networking
Layer.
Enterprise Edge IP routing specifics
Using Enterprise Edge Unified Manager, you can perform the following routing
configuration options:
•
Add or delete the interfaces to routing protocols
•
Configure routing protocol options
•
Add and delete static routes
•
Add or delete filters
•
Set filter actions
For instructions on configuring routing options, see Routing on page 85.
The followings table shows the Enterprise Edge IP routing protocols and the
precedence order when conflict or redundant routes occur.
Precedence
IP Routing Protocols
1.
2.
3.
Static Routing
SNMP
RIP v1 and v2
IP Addressing Overview
IP addresses follow the format nnn.nnn.nnn.nnn, where nn is a number between 0
and 255. For example, 192.123.4.56 or 10.1.1.1. IP addresses enable computers to
communicate to each other. Both servers and workstations on a network must have
IP addresses. There are two types of IP addresses:
Dynamic – A dynamic IP address changes. Dynamic IP addresses are assigned
to computers by an IP address server as the computer needs it. Usually there is
a particular range or scope of IP addresses that your network uses. With
dynamic IP addressing, a computer can have a different IP address every time
it connects to the network. Other devices need to know the computer’s IP
address so that they can communicate with it. The IP address server manages
the assignment of IP addresses to the client workstations.
Static – A static or fixed IP address never changes. It is assigned to a computer
permanently. The computer has the same IP address every time it connects to
the network and is known to other devices on the network by that IP address.
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Static Routing
Enterprise Edge users can add static routes to the IP routing table. These static
routes take precedence over those routes chosen by routing protocols, such as RIP.
To add a static route, see Static Route on page 94.
Note: Ensure that users do not add a static route for default route 0.0.0.0 with mask
0.0.0.0. Enterprise Edge’s Net Link Manager automatically creates a default
route and adjusts it according to link status unless router or Net Link
Manager are running.
Routing Information Protocol (RIP)
RIP is a widely-used protocol for managing routing information in a self-contained
network such as a corporate intranet. RIP is classified by the Internet Engineering
Task Force (IETF) as one of several internal gateway protocols (IGPs).
A RIP router sends full updates, which list all the other hosts it knows about, to its
closest neighbor host every 30 seconds. The neighbor host sends the information to
its next neighbor, until all the hosts in the network know the routing paths, a state
known as network convergence. RIP uses a hop count to determine network
distance. Each host with a router in the network uses the routing table information
to determine the next host for the packet, until a specified destination is reached.
Enabling RIP on Network Interfaces
To run RIP on one or more network interfaces, go to the specific interface under
router and enable RIP. After you enable RIP for an interface, you do not have to
reboot the Enterprise Edge server for the changes to take effect.
Packet Filtering
A packet is a unit of data routed between an origin and a destination on the Internet
or on any other packet-switched network. When any file such as an e-mail message,
HTML file, GIF file or URL request, is sent on the Internet, the IP layer divides the
file into packets of an efficient size for routing. Each of these packets is numbered
and includes the Internet address of the destination.
Enterprise Edge supports basic (or stateless) packet filtering for IP. You can
configure the filter to pass only the packets from the routes they list, or to pass
everything except the packets for the routes they list.
Each route in the list can be any combination of the following packet filtering
features. By default, no packet filer is configured.
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Using Enterprise Edge Services 25
Enterprise Edge supports the following packet filtering features for IP:
Packet Filter Feature
Comments
Source Address
the source address field of the packet to be filtered.
Source Mask
the source address mask of the packet to be filtered.
Destination Address
the destination address field of the packet to be filtered.
Destination Mask
the destination address mask of the packet to be filtered.
Protocol
the protocol type of the packet to be filtered.
Source Port
the source port of the packet to be filtered. This field applies
only if protocol value is TCP or UDP.
Destination Port
the destination port of the packet to be filtered. This field
applies only if protocol value is TCP or UDP.
ICMP Type
the ICMP type field of the packet to be filtered. This field
applies only if protocol value is ICMP.
ICMP Code
the ICMP type field of the packet to be filtered. This field
applies only if protocol value is ICMP.
Note: When you set filters, you must forward packets going to the RPC port (port
135 TCP or UDP) for correct Unified Manager operation.
LAN-to-LAN Fast Path Routing
Enterprise Edge provides an optional second 10/100 LAN interface. If the second
LAN interface is used, Enterprise Edge uses optimized software for high
performance routing. This includes an innovative design that speeds up the
performance for LAN-to-LAN routing by over three times the rate that is normally
achieved using traditional software architecture.
Dynamic Host Configuration Protocol (DHCP)
DHCP (Dynamic Host Configuration Protocol) is a protocol that lets network
administrators manage and automate the assignment of Internet Protocol (IP)
addresses in an organization's network. Using the Internet's set of protocols (TCP/
IP), each machine that can connect to the Internet needs a unique IP address. If an
organization sets up its computer users with a connection to the Internet, an IP
address must be assigned to each machine.
Without DHCP, the IP address must be entered manually at each computer. If
computers move to another location in another part of the network, a new IP address
must be entered. DHCP lets a network administrator supervise and distribute IP
addresses from a central point and automatically sends a new IP address if a
computer connects to a different place in the network.
You can set up Enterprise Edge to be your LAN’s DHCP server and let it assign IP
addresses to the workstations on your LAN as they need them. This is the
recommended configuration.
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If you set up the Enterprise Edge server as a DHCP server, you must let all of your
workstations know that they will have their new IP addresses assigned by
Enterprise Edge. To do this, you may need to change the configuration of each
workstation individually.
If you already have a DHCP server, you must let it know that the Enterprise Edge
server is their gateway and DNS proxy for the workstations.
Your Enterprise Edge server can function as a DHCP server. You can use this
feature if you do not want to administer static IP addresses for every workstation on
your network. You can configure Enterprise Edge to assign IP addresses
dynamically.
Automatic Configuration using a DHCP server
To configure the DHCP server, you need to create a particular range (or scope) for
each LAN interface in Enterprise Edge and allocate a block of IP addresses for that
scope. The Enterprise Edge Auto-Configure system automatically creates a scope
using parameters inherited from the LAN interface.
Guidelines for Using DHCP
Since many default DHCP parameters are inherited from LAN interface
parameters, configure LAN interfaces before configuring DHCP.
If you are modifying the DHCP configuration on Enterprise Edge, follow the same
guidelines of your organization. In particular, you can perform one or more of the
tasks listed below to ensure proper operation of the networked system:
1. If a change in the DHCP configuration resulted in the change of ‘Router’ and
‘Subnet mask’ options in a scope, users must do one of the following to
ensure basic operation:
•
Execute ipconfig /release and ipconfig /renew on each of the workstations.
For Windows 95 and Windows 98, use its equivalent, winipcfg.
•
For clients that do not support ipconfig and winipcfg, reboot is required to
renew their IP addresses.
2. If change in DNS server or DNS name options happens, users need to repeat
the tasks in step 1 to ensure proper connectivity with the organization.
3. Always schedule a down time associated with these changes.
4. Nortel Networks recommends that you reboot Enterprise Edge to initialize
changes.
Using Enterprise Edge, you can define a DHCP scope for each LAN interface.
DHCP server parameters are divided into two categories: global and scope specific.
Global parameters apply to all scopes. Specific parameters apply to a specific
scope.
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Domain Name Service (DNS)
The domain name service (DNS) is the system within the Internet that maps names
of objects, usually host names, into IP numbers or other resource record values. The
name space of the Internet is divided into domains. The responsibility for managing
names in each domain is usually delegated to systems in each domain.
Enterprise Edge functions as both a gateway to the Internet and as a DNS proxy:
•
Gateway: a system that links two different types of networks and enables them
to communicate with each other. Enterprise Edge is the gateway that links your
company’s network to the Intranet or Internet. Depending on your
configuration, you can let your workstations know that Enterprise Edge is your
Internet gateway.
Note:If your PC is a DHCP client under Enterprise Edge, you do not have to do
this.
•
DNS Proxy – A Domain Name Service (DNS) proxy translates alphabetic
domain names into computer-readable IP addresses. For example, the domain
name www.nortelnetworks.com for the Nortel Networks web site can translate
to the IP address 192.177.5.18. After a domain name is translated into an IP
address, the workstations on your network can communicate with the web site.
Depending on the configuration of your system, you can let your workstations
know that Enterprise Edge is the DNS proxy.
When Enterprise Edge receives DNS requests from clients, it first checks its local
cache for name entries and records. If found locally, Enterprise Edge immediately
responds to clients. Otherwise, Enterprise Edge creates a new DNS request to the
remote Primary or Secondary DNS servers on behalf of the client. If the remote
DNS server responds with the requested records, they are forwarded to clients and
cached in Enterprise Edge.
Note: If your PC is a DHCP client under Enterprise Edge, you do not have to let
your workstations know that Enterprise Edge is your DNS server.
Guidelines for Using DNS
Consider the following guidelines when using DNS:
•
If the Enterprise Edge DNS service is enabled, make sure that clients always use
Enterprise Edge as their DNS server.
•
When it is disabled, set the DNS Server field in DHCP configuration to the
remote DNS server IP address. If DHCP service is also disabled in Enterprise
Edge, tell all clients to set the DNS server in their IP configuration to the remote
DNS server.
•
The DNS proxy carries security features because it keeps all of the internal IP
addresses from external web servers.
•
You are required to fill in the remote Primary DNS server IP address. See DNS
on page 84 for instructions.
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Web Caching/Proxy
When you use Enterprise Edge as a web proxy, Enterprise Edge can store or
cache information downloaded from the Internet. A proxy is a server that acts on
behalf of another. Web caching allows LAN workstations to share common
information downloaded from the Internet.
Data is usually cached on individual workstations. Each time a workstation on the
LAN requests information from the Internet, the individual’s request is sent to the
Internet, and the information is returned to their workstation. If multiple LAN
workstations request common data, a web cache on the network reduces download
time from the Internet.
With Enterprise Edge configured as a web proxy with web caching:
•
LAN workstations have shorter download times.
•
Previously downloaded information is stored for future use by all workstations
on the LAN.
•
Enterprise Edge retrieves information from the Internet only if it is not already
cached or if the cached file is out of date compared to the information on the
Internet.
•
Cookie blocking protects users’ privacy.
You can configure the web caching settings through your web browser.
The web proxy also provides security features similarly to the DNS proxy because
it hides all of the internal browsers’ IP addresses from external web servers.
External web servers see Enterprise Edge’s IP address.
Guidelines for Using Web Caching/Proxy
The Enterprise Edge web proxy uses a web server for running in HTTP-Proxy
mode.
Consider the following guidelines when using web caching/proxy:
•
A web server installed in Enterprise Edge can not be used as a general purpose
HTTP server. It is only used by the Enterprise Edge web-based management
client and web-cache services.
•
If users need to run their web sites, they need to run the HTTP Server on another
system and make its IP address known to Enterprise Edge.
To set the web server as the web cache/proxy, refer to Web cache on page 126.
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Simple Network Management Protocol (SNMP)
This section includes information on:
•
SNMP Overview
•
Guideline for Using SNMP
SNMP Overview
Simple Network Management Protocol (SNMP) is the protocol that governs
network management and the monitoring of network devices and their functions.
Guidelines for Using SNMP
Consider the following guidelines when using SNMP:
•
You can set read-only and read-write community names.
•
You can set a list of permitted managers. When set, the agent responds to
requests from SNMP managers from only those IP hosts.
•
An empty list of permitted managers implies that agent responds to requests
from anyone.
•
You can set trap communities. Each trap entry identifies the community name
that must be used and the manager addresses.
•
You can enable or disable sending authentication traps.
•
You can enable or disable the SNMP agent.
•
At present, SNMP supports only MIB-II (RFC 1213) MIBs.
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Quality of Service
This section includes information on:
•
QoS overview
•
DiffServ networks
•
Legacy networks
•
Admission control
•
Packet marking for DiffServ networks
•
Port range setting for legacy networks
•
Relationship between the QoS Module and the VoIP QoS monitor
•
Enterprise Edge QoS restrictions and defaults
QoS overview
On the Internet, Quality of Service (QoS) is the methodology that transmission
rates, error rates, and other characteristics can be measured, improved, and, to some
extent, guaranteed in advance. QoS is of concern for the continuous transmission of
high-bandwidth voice and video multimedia information. Transmitting this content
dependably is difficult in public networks using ordinary “best effort” protocols.
Real-time applications that include voice and video are time-sensitive. Delivering
voice and video over the Internet requires bounded packet delay and jitter.
Differentiated Services (DiffServ) is a QoS framework standardized by IETF that
focuses on DiffServ standards for real-time and mission critical applications. The
DiffServ standards are evolving and vendors are starting to develop network
devices that support DiffServ.
The purpose of the Enterprise Edge QoS module is to prioritize IP traffic and to
provide an acceptable quality of service to delay and jitter sensitive applications
such as audio and video as well as mission critical applications.
The Enterprise Edge QoS module primarily serves two purposes:
•
In a DiffServ network, it acts as an edge device and performs the packet
classification, marking, and prioritization.
•
In a non-DiffServ or legacy network, it manages the WAN link to make sure
premium voice (and optional video) packets get high priority when crossing the
slow WAN link in both directions.
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DiffServ Networks
For DiffServ networks, Enterprise Edge:
•
Intercepts all H.323 traffic
•
Identifies call setup packet
•
Performs admission control based on the WAN link usage
•
Marks the packets as premium once admitted
Enterprise Edge implements the DiffServ queuing model that includes a premium
queue and eight best-effort queues. The premium queue has a stricter high priority
than the best-effort queues. The eight best-effort queues are scheduled by a
weighted-fair-queuing (WFQ) algorithm. Since best-effort traffic is not shaped and
does not go through the admission control process, the WFQ is needed to avoid
starvation of low priority packets.
Currently, H.323 traffic is allowed to get into the premium queue. Users can allow
other traffic to be premium by setting up priority filters on the web-based GUI using
the following filter criteria:
•
Source IP address (with mask)
•
Destination IP address (with mask)
•
IP protocol ID (e.g. TCP, UDP, or ICMP)
•
Source port range
•
Destination port range
•
Incoming TOS field
Note: There is no traffic shaping mechanism implemented in this version. Be
cautious when setting up premium priority filters. If the traffic is high
volume and with high bursts, it may impact VoIP quality. Unless necessary,
Nortel Networks recommends that you allocate traffic to the high priority
best-effort queues instead of the premium queue.
Legacy Network
In a legacy network, Enterprise Edge assumes that network devices, such as routers
and switches, do not recognize the IP header TOS field (as defined by DiffServ) and
do not perform the corresponding priority processing. However, most of the current
installed routers, including those from Cisco and Nortel Networks, allow
administrators to set up priorities by IP addresses, port numbers or protocol types,
which is similar to the priority filters described above.
Note: This information is specific to H.323 traffic in legacy networks.
In this environment, Enterprise Edge allows H.323 voice (and optional video)
packets to travel across the WAN link with high priority in both directions using
existing router features.
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An administrator needs to reserve a block of UDP port numbers and configure them
as high priority in both Enterprise Edge and the remote router at the other end of the
WAN link. Enterprise Edge forces all of the admitted H.323 streams to fall into the
reserved port range by using a proprietary technique so that these H.323 voice
(video) packets can get high priority. This is completely transparent to the end
H.323 terminals.
See Appendix B: Setting Up Remote Routers on page 167 for additional
information on setting UDP port ranges for remote routers.
Note: If an administrator configures all routers in their corporate network
with the same reserved port numbers (both in and out), admitted H.323
streams can get end-to-end high priority. However, routers connected
to WAN links are more critical because they are typically the
bottlenecks.
You can set up best-effort traffic priorities through the web-based Unified Manager
by using the following filter criteria:
•
Source IP address (with mask)
•
Destination IP address (with mask)
•
IP protocol ID (e.g. TCP, UDP, or ICMP)
•
Source port range
•
Destination port range
•
Incoming TOS field
There are a total of 8 priority classes for best-effort traffic in Enterprise Edge. By
default, all best-effort traffic is sent to Class 5 (queue 5), with Class 1 the highest
and Class 8 the lowest in priority.
Admission Control
Enterprise Edge allows users to set a certain percentage of the WAN bandwidth for
premium traffic. This traffic takes strict priority over best-effort traffic. In this
version, H.323 (VoIP) flows need to pass the admission control process to be
treated as premium traffic.
For admission control, Enterprise Edge uses the WAN Premium Bandwidth
parameter. Specifically, for each H.323 flow, QoS performs admission control
using the negotiated coding algorithm. A flow is admitted as a premium flow if the
current total WAN premium usage plus the new flow is lower than the allocated
WAN premium bandwidth.
Otherwise, the flow is rejected and he flow is still delivered as best-effort traffic.
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As a reference point: for a typical G.729 codec, each VoIP flow requires the
following WAN bandwidth, depending on the codec sample rate:
G.729
Sample Rate
30 ms
Sample Rate
20 ms
Sample Rate
10 ms
No
Compression
10.6 k
14 k
24 k
Data
Compression
8k
10 k
16 k
6.8 k
9.6 k
RTP Hdr Comp. 5.8 k
Note: The calculation is based on a full-duplex WAN link with HDLC overhead
and VoIP with silence suppression.
Nortel Networks recommends that for slow WAN links, such as a 56K leased line
or ISDN, H.323 video is not configured as premium traffic.
Packet Marking for DiffServ Networks
Enterprise Edge classifies traffic and marks packets by setting the IP header type of
service (TOS) field. By default, the following items are classified as premium
traffic:
•
All VoIP flows
•
RIP packets: routing packets are periodically exchanged between Enterprise
Edge and remote routers. These packets need higher priority than regular
packets to ensure that the routing protocol is working properly.
•
ICMP packets: Enterprise Edge Net Link Manager uses the ‘ping’ command to
decide whether the primary WAN link is active or inactive. These packets are
not delayed by regular packets.
•
UDP Port 5000 packets – Enterprise Edge VoIP QoS Monitor uses port 5000 in
a proprietary protocol to monitor the IP network delay and jitter. Since
Enterprise Edge assigns VoIP packets to the premium queue, it also gives these
monitor packets high traveling priority.
•
Admitted RTP/RTCP packets.
In Enterprise Edge, there are two places a user can set up a TOS field in an IP
header:
TOS-for-Premium-Traffic – this field sets TOS bits for premium packets for
DiffServ networks. If this field is ignored, Enterprise Edge uses a default value
of 0xB8.
TOS-for-Priority-Filters– this field sets TOS for those packets matching a
specific priority filter.
Note: You can specify packets matched to a filter to go Priority Queue 0 – 8. The
Queue 0 is for premium packets, and Queue 1 – 8 correspond to best-effort
priority classes 1 – 8.
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If you specify Queue 0 and a TOS bits for a filter, then this TOS takes
precedence over the TOS set for premium traffic for all packets that match this
filter.
The default TOS for all best-effort packets is 0x00, and the default queue for
best-effort packets is Queue 5.
WARNING
Premium flows that are specified by priority are not admission controlled. Unless
you know the behavioral characteristics of a flow, do not specify flows as premium.
Instead, you can specify them as the highest B-E traffic.
Consider the following guidelines when you set up priority filters
•
The fewer the conditions to check for, the fewer CPU cycles are consumed.
Filter processing is faster if fewer conditions are specified, without
compromising the precision in selection.
•
If you don’t need the value of a particular criterion, such as source port number,
don’t set a corresponding value for the filter.
•
When you specify the layer 3 sub-protocols, use the port number/IP address
combinations and avoid specifying the protocol field. Nortel Networks
recommends that you specify a protocol field only if you manage an unusual
condition in your network. This reduces the consumption of CPU cycles.
•
Users can configure the precedence of the filters. Packets are matched against
each filter sequentially until a match is found. Pay attention when specifying the
precedence of filters. Placing ‘popular’ filters ahead of ‘unpopular’ filters can
significantly speed up the processing.
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Port Range Setting for Legacy Networks
Enterprise Edge uses UDP port ranges to provide high priority to VoIP packets in
existing legacy IP networks. These same port ranges must be reserved and set to
high priority on all routers that an administrator expects to have QoS support.
Reserving port ranges is not required for DiffServ networks.
You can select any port ranges that are not used by well-known protocols or
applications.
Each H.323 or VoIP RTP flow uses two ports. The total number of UDP port
numbers to be reserved depends on how many concurrent RTP flows are expected
to cross a router interface. In general:
•
Backbone routers reserve more ports than edge routers.
•
Edge routers’ port ranges are a subset of the backbone router port ranges.
•
Add UPP 5000 to high priority.
•
Enterprise Edge’s port ranges are a subset of the remote router’s port ranges.
•
You must reserve two ports for each voice call you expect to carry over the
WAN. You need two ports for each video session if it is given premium
treatment.
•
You can reserve multiple discontinuous ranges. Nortel Networks requires each
range meet the following conditions:
- Each range must start with an even number.
- There must be an even number of ports in a range.
See Appendix B: Setting Up Remote Routers on page 167 for additional
information on setting UDP port ranges for remote routers.
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Relationship between the QoS Module and the VoIP QoS Monitor
The VoIP gateway in Enterprise Edge includes a Quality-of-Service Monitor
(QMON) that periodically monitors the delay and jitter of IP networks between two
peer gateways by using a proprietary protocol. These monitoring packets are
delivered at UDP port 5000.
The main objective of the QMON is to allow new VoIP calls to fall-back to PSTN
if the IP network is detected as “bad”.
The QoS module discussed here complements QMON. While QMON passively
monitors the IP network, the QoS module actively improves the IP network by
giving VoIP packets higher priority to travel so that the chance for QMON to detect
“bad” is reduced.
Note: For a VoIP call, if a packet passes QMON but fails the QoS admission
control, it is delivered over IP but only as a best-effort flow. There is no fall
back to PSTN if a packet has passes QMON checking.
QMON packets travel at the same priority as VoIP packets or at higher priority than
normal IP packets. If VoIP packets travel at a premium level but QMON packets
travel at normal best-effort level, it is possible for QMON to report the IP network
as “bad” and start to PSTN fall-back, but the actual delay and jitter for VoIP packets
are still “good”, since VoIP packets have a higher priority. To avoid this add UDP
port 5000 to the high priority queue in all routers.
Enterprise Edge QoS Restrictions and Defaults
Enterprise Edge QoS includes the following restrictions and defaults:
•
By default, the general bulk of traffic (not defined by priority filters) is routed
to best-effort Queue 5 (with Queue 1 the highest priority and Queue 8 the
lowest). An administrator can define four classes of traffic above the generic
traffic and three classes below it.
•
A maximum of 31 priority filters for best-effort traffic can be created.
•
The QoS module can be optionally turned ON or OFF. The default setting is on.
•
The predetermined WAN bandwidth is always available to VoIP gateway
channels. That is, VoIP gateway calls are always admitted. The remaining
WAN premium bandwidth can be used by other H.323 streams, such as
Microsoft NetMeeting. If there is no VoIP gateway traffic, their WAN
bandwidth can be used only by best-effort traffic, not other premium traffic (for
example, Netmeeting). Enterprise Edge does not support preemption of
admitted premium streams.
•
Currently packet prioritizing and priority filters apply only to outbound traffic
for specified interfaces. Inbound traffic is treated on a first in first out (FIFO)
priority.
•
The maximum port numbers a user can reserve for premium traffic is 256.
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LAN Connections
The Enterprise Edge Ethernet / 802.3 interface supports IEEE 802.3 Ethernet frame
format. The Ethernet interface uses Carrier Sense Multiple Access with Collision
Detection (CSMA/CD) to manage the access to the physical media.
Enterprise Edge Ethernet interface supports the following features:
•
100 BASE – TX with RJ-45 connector
•
10 / 100 Auto Sense
•
Full Duplex support
•
Fast LAN-LAN routing
WAN Connections
This section includes information on:
•
WAN overview
•
Permanent WAN connections:
– Frame Relay
– PPP
WAN overview
A WAN (wide area network) is a geographically dispersed data communication
network. The term WAN distinguishes a broader data communication structure
from a local area network (LAN). A WAN can be privately owned or rented, but
usually connotes the inclusion of public (shared user) networks.
Enterprise Edge includes two primary WAN links (WAN1, WAN2) and a backup
WAN dial up link (WAN3).
•
The Primary WAN link is always a permanent link and it is a dedicated network
adapter. The primary link runs either Frame Relay or the PPP protocol at the
link layer.
The Enterprise Edge primary WAN connection is through a two-port card.
These two ports can be independently configured to run Frame Relay or PPP.
The card includes one serial sync port and one T1 port.
•
The backup WAN link is always configured as dial-on-demand network adapter
by the router. The backup Wan link runs PPP only. Enterprise Edge provides
backup WAN connection through a V.90 modem.
The primary and backup link management is performed from Enterprise Edge.
There is a Net Link Manager running in Enterprise Edge that monitors the
primary link status and it starts the backup link when a break in primary link is
detected. Similarly, the backup link is automatically terminated when the
primary link becomes active.
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Note: Net Link Manager can back up only one link, even though there are two
primary links. Net Link Manager backs up the link whose next hop address
is given to it.
•
Net Link Manager manages the default route in Enterprise Edge. If a link
breaks, Net Link Manager removes all the default routes on the broken link and
adds the default route to the new link. This happens during switch over from
primary to secondary links and vice versa.
Permanent WAN Connections
This section includes information on the following topics:
•
Frame Relay
•
PPP
The permanent WAN connections are provided by a WAN card that supports PPP
and Frame Relay connections. Each port can be configured to run either of the
protocols independently.
The WAN cards are provided by one T1 port (with in-built CSU/DSU) and one
serial sync port or dual serial sync port versions.
The Enterprise Edge serial sync port supports the following:
•
Interfaces: V.35, RS442, RS 323, X.21
•
Maximum line speed:8 Mbit/sec
Frame Relay
Enterprise Edge supports Frame Relay in group mode. That is, for each physical
port (serial sync or T1 port), there is one IP address for all PVCs.
The available DLCI numbers are 0-1023, of which 16 are reserved. The maximum
number of PVC’s allowed is 1008.
For Frame Relay network, Enterprise Edge supports Frame Relay Forum standard
FRF.9 compression protocol with the standard STAC compression algorithm.
Software performs the compression and it can be enabled or disabled by using
Unified Manager.
PPP
Point-to-Point Protocol (PPP) is a protocol for communication between two
computers using a serial interface, typically a personal computer connected by
phone line to a server. For example, your Internet server provider may provide you
with a PPP connection so that the provider's server can respond to your requests,
pass them on to the Internet, and forward your requested Internet responses back to
you. PPP uses the Internet protocol (IP). PPP is sometimes considered a member of
the TCP/IP suite of protocols. Relative to the Open Systems Interconnection (OSI)
reference model, PPP provides layer 2 (data-link layer) service.
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PPP is a full-duplex protocol that can be used on various physical media, including
twisted pair or fiber optic lines or satellite transmission. It uses a variation of High
Speed Data Link Control (HDLC) for packet encapsulation.
PPP can process synchronous as well as asynchronous communication. PPP can
share a line with other users and it has error detection.
PPP on the primary WAN link uses synchronous point-to-point communication.
Because the physical media is point-to-point, authentication attributes are not
supported in this mode.
Enterprise Edge supports PPP Compression Control Protocol (CCP) (RFC 1962)
with STAC compression algorithm.
This compression is done by software and can be enabled or disabled by using a
parameter in PPP configurations.
Backup Up WAN Connection
In Enterprise Edge, the back up WAN connection is a V.90 modem that is used as
a dial-up WAN link.
The modem is provided through an RJ-11 connector. The modem has the following
features:
•
V.90 56 kbps ITU standard
•
V.34 33.6 kbps ITU standard
•
V.42/MNP 2-4 error control
•
V.42 bis/MNP 5 data compression
•
Compatible with ITU and Bell Standards from 56 kbps down to 1200 bps
Note: The modem is capable of receiving at up to 56 kbps and sending at up to
31.2 kbps. Because of FCC regulations, receiving speeds are limited to 53
kbps. The actual speed can vary, depending on factors such as current line
noise.
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Backup WAN Links
Enterprise Edge supports Microsoft Point-to-Point Compression (MPPC), RFC
2118 for traffic across dial-up links. The compression ratio of MPPC is
approximately 4-5 to 1.
For the remote backup, Enterprise Edge supports the following authentication
mechanisms:
•
Password Authentication Protocol (PAP)
•
Challenge Handshake Authentication Protocol (CHAP) is a more secure
procedure for connecting to a system than the PAP. The system attempts CHAP
before using PAP.
Software data compression on backup/dial up link is an optional feature in
Enterprise Edge. The default is set to ENABLE data compression.
Note: Remote user dial in as a RAS client is supported for administrative purposes
only.
Guidelines for Using Remote Dial In
Consider the following guidelines when using remote dial in:
•
The same modem is shared between the remote dial-in for administration and
the backup WAN link. If a remote administration user is connected while the
primary link breaks, the automatic backup function does not occur.
•
While using back up interface, Enterprise Edge always calls. Enterprise Edge
does not answer an incoming call from a router.
•
Support for callback configuration is not provided.
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Configuring Unified Manager Settings
4
Configuring Unified Manager includes:
•
Configuring system settings
•
Configuring resources
– LAN settings
– WAN settings
– MSC settings
– Telephony (PBX) settings
•
Configuring services
– DHCP settings
– DNS settings
– Web caching/proxy
– Routing settings
•
SNMP settings
•
Quality of Service (QoS) settings
•
VoIP settings
•
Quality Measure of Service (QMoS)
•
Configuring Unified Manager settings
– Options settings
– User Manager settings
– Alert Manager settings
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Accessing system, resources, services and management settings on
Unified Manager
You can access Unified Manager system, resources, services and management
settings from:
•
the menu
or
•
the navigation tree
Configuring system settings
1. Click Group and then click Systems or Comprehensive.
2. On the navigation tree click the Enterprise Edge key and then click the
System key.
The screen displays the available Enterprise Edge item settings, resources and
configurable resource services.
3. Configure item settings using Unified Manager and the resource services from
the menu.
Scroll to see any settings that are not displayed.
Unified Manager system settings
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The Unified Manager system settings are:
Setting
Definition
System Name
Lets users specify the system name of the Enterprise Edge, Unified
Manager.
Description
Shows a description of the Enterprise Edge Unified Manager installed
system.
Resources
A configurable listing of all resources installed on the Enterprise Edge
Unified Manager system.
Services
A configurable listing of services available for each resource on the
Enterprise Edge Unified Manager system.
The resources and resource services are:
Column
Definition
Name
Shows each configurable resource service.
Status
Shows the status of each configurable resource service.
Version
Shows the version of each configurable resource service.
Description
Shows a brief description of each configurable resource service.
System name
Unified Manager often shows an example of how to format information to the right
of the box. Type the information in that format.
To enter the system name:
1. In the System Name box type the system name.
2. Press the Tab key to save your changes.
System resource services
1. In the Resource options, click the resource you want to configure.
2. In the Services options, click the resource service you want to configure.
Scroll to see any settings that are not displayed.
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3. On the menu click Configuration and then click Modify Services.
The services dialog box appears.
4. From the Status list box enable or disable the resource service defined in the
Name box.
5. Click the Save button to return to Unified Manager.
6. Repeat this process to enable or disable:
•
DHCP
•
DNS
•
Routing
•
SNMP
•
QoS
•
VoIP Gateway
•
Qos Monitor
•
Web Cache
•
Voice Record
•
TAPI Service Provider
•
Voice Service
•
Alarm Service
•
Voice Mail resource service
•
Msc
•
Telephony resource
If a resource service is not highlighted prior to prompting resource modification, an
error message appears that asks you to select a row in the table. Click the OK button
to continue.
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Status fields, where available, are the accumulation of 'administrative' and
'operational' status’ of the component queried.
The three administrative statuses that can be assumed by a component are:
•
Enabled: the component is enabled to operate in its normal mode, with all
normal parameters set. When the component is enabled, the component can
assume any of its operational statuses.
•
Disabled: the component is disabled from operation. None of the component’s
operational statuses are valid in this state.
•
Paused: the component is enabled and is running but is currently not accepting
additional service requests.
The two operational statuses that can be assumed by a component are:
•
Up: the component is up and running normally
•
Down: the component is down, due to some reason - normal or abnormal,
internal or external.
The Status column supports the combined list of these statuses:
•
Up: This value is read-only. It indicates that the component is enabled and is
operating normally. For a component like a network interface, this means the
interface is enabled and connected to a valid link. For a service like DHCP, it
means that the service is enabled and is running normally.
•
When the current status is 'Up', setting it to 'Enabled' or 'Continue' where
available, is a no-operation. Setting it to 'Disabled' disables the service, by
shutting it down and then disabling it. Where available, setting it to 'Paused'
pauses the service.
•
Down: This value is read-only. This value indicates that the user has enabled the
component, and the component is unable to operate in an 'Up' state because of
normal or abnormal, internal or external errors. For example, if a network
interface is not in an 'Up' state because of no connection to an actual physical
link, it is a normal, external error. If a service like DHCP service is not in an 'Up'
state because of internal errors, it is an abnormal, internal error.
•
When the current status is 'Down' setting it to 'Enabled' attempts to bring it to
'Up' state again. As a result it may stay at a 'Down' state. Setting it to 'Disabled'
disables the service. Where available, setting it to a 'Paused' or continued state
fail as the service is not yet running.
•
Enabled: This value is write-only. This value never appears when read. For a
service that is enabled, one of its operational statuses (that is, Up or Down)
appears when its Status field is read.
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•
When this value is set, it indicates that the user wants to enable the
corresponding component and bring it to an 'Up' state. It is probable that the first
happens. The second action depends on the component. For a network interface,
the 'Up' state does not happen unless user connects a link to the interface. For a
service this may not happen only if the system encounters an error of some kind
during the requested action.
•
Disabled: This value can be either read or set. When read, this indicates that the
component is disabled from operation. When set, it indicates the same, in
addition to taking the component to a 'Down' state before disabling.
•
Paused: This value can be either read or set. When read, this indicates that the
service is enabled and is given the command to pause. When set, it indicates the
same, pausing the service further.
•
Continue: This value can only be set. It can be set only when the service in a
Paused state. It resumes paused service.
System performance graphs and tables
To access the system performance graphs and tables:
1. On the menu click Performance and then click System CPU Usage Graph.
The System CPU Usage Graph appears.
2. On the menu click Performance and then click System CPU Usage Table.
The System CPU Usage Table appears.
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3. Access the Memory Usage graph and Memory Usage table by following the
steps for System CPU Usable Graphs and Tables.
For information on using performance tables and graphs, refer to Graphs and tables
on page 154.
System Fault Alarm Banner
To access the system fault alarm banner:
1. On the menu click Configuration and then click Fault.
The Alarm Banner dialog box appears.
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System Alarm Banner Message Listing
Accessing System Tools
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Accessing System Save Options
System name, date and time
To change the system name, date and time:
1. Click the System navigation key to expand the navigation tree.
The System Settings dialog box appears.
Clicking the System navigation key expands the navigation tree but doesn’t
display the summary of configurable Identification resources.
The System Settings are:
Setting
Definition
Name
Lets users specify the name for the Enterprise Edge system. The Enterprise
Edge system must have a unique name in the connected network (LAN or
WAN) so that no two Enterprise Edge servers that can reach each other
through IP network do not have the same name. The name must be less than
15 characters in length, cannot contain special characters like “/;,” etc.
Date
Lets users set the current date for the Enterprise Edge system. Because the
value for the date changes, save the changes as soon as the new date is
entered.
Time
Lets users set the current time for the Enterprise Edge system. Because the
value for the time keeps changing, save the changes as soon as the new time
is entered. Use the 24-hour format to set the date. The seconds field is
optional.
2. On the navigation tree click Identification to view the available system
settings to configure.
The System Identification dialog box appears.
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Note: Clicking the Identification navigation key causes the key to disappear.
You must click Identification to display the configurable system
settings.
3. In the System Name box type the system name.
4. In the Date box type the current date.
5. In the Time box type the current time.
6. Press the Tab key to save the changes.
7. Clicking the System navigation key to close the navigation tree.
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5
Configuring Resources includes configuring:
•
LAN
•
WAN Settings
•
MSC Settings
•
Telephony (PBX) Settings
To open the Unified Manager Resources screen:
1. On the menu click Group and then click Resources or Comprehensive.
2. On the navigation tree click Enterprise Edge and then click the Resources
keys.
The available Enterprise Edge resources appear.
3. Click the Resources navigation key to expand the navigation tree.
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The columns that are displayed when the system, resources, services, or
management settings are activated are:
Column
Definition
Name
The name column lists the available configurable resources.
Status
The status column lists the operating status of each configurable resource.
Version
The version column lists the version of each configurable resource.
Description
The description column gives a brief description of the interface for each
configurable resource.
LAN
You configure LAN resource settings from Unified Manager.
If your Enterprise Edge server has more than one LAN interface, multiple items
appear under LAN resources. To configure other LAN interfaces, follow the
instructions given here for LAN1.Choose LAN from the navigation tree to view the
available LAN resources to configure.
Note: Clicking the LAN navigation key expands the navigation tree, but
doesn’t display the summary of configurable LAN resources.
4. Click the LAN navigation key to expand the navigation tree.
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5. On the navigation tree click LAN1.
Clicking the LAN1 navigation key causes the key to disappear. You must
click LAN1.
The LAN Summary screen appears.
The LAN Summary settings are:.
Setting
Definition
IP Address
Lets users specify the IP address of the LAN interface in a valid dot format.
Type the address in the following format: 10.10.10.1.
The value for this field is valid only if the LAN interface is enabled.
SubNet Mask
Lets users specify the subnet mask of the LAN interface. Type the data in
the following dot format 255.255.255.0.
Physical Address
Lets users to view the physical address of the LAN interface.
If the IP Address or subnet mask of the LAN interfaces changes, a DHCP
scope associated with the LAN interface is created in the DHCP server
running on the Enterprise Edge server. This scope contains all necessary
parameters to the clients of the DHCP server configured so that they use
Enterprise Edge as their default gateway and a WINS server. The scope also
contains default parameters for the range of the addresses, based on the
address of the Enterprise Edge interface and subnet mask. Navigate through
the services screen in the user interface to see DHCP settings for the scope.
Description
Lets users view a description of the network interface card supporting the
LAN interface.
Version
Lets users view the version indicator of the LAN interface.
Speed
Lets users view the speed of the connection to the LAN interface.
The value for this field is valid only if the LAN interface is enabled.
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Setting
Definition
Connection Type
Lets users specify the connection type to the LAN interface.
The following values are supported and are interpreted as follows:
Auto Sense: The interface uses 'auto negotiation' protocol to choose the
maximum possible speed of the connection. Depending upon the connected
device, the interface can choose '100 MB' or '10MB', full-duplex, or halfduplex.
The receiving end’s speed and connection type determines the mode of
transmission. For example, if the receiving end is another PC port, or a
bridge/switch port, the full duplex of operation is possible; if the receiving
end is a shared media port (like hub port), only half-duplex of mode is
possible.
10 MB Half: Speed is set to 10 MB/s and mode to half-duplex.
10 MB Full: Speed is set to 10 MB/s and mode to full-duplex
10 MB Auto: The speed is set to 10 MB/s and the mode is automatically
chosen by the interface, using auto-negotiation protocol. This mode is
chosen to limit the maximum traffic coming in to Enterprise Edge to 10 MB,
while enabling the auto-negotiation feature for easier interconnection.
Usually, you limit the incoming traffic if you notice that the bursty traffic
from the connected LAN is degrading the quality of voice calls carried
through VoIP over WAN. Though the LAN traffic gets lower priority in
Enterprise Edge, their high rate of arrival to the Enterprise Edge server
generates too may interrupts in the system that cause degraded quality in
voice calls carried as VoIP.
100 MB Half: Speed is set to 100 MB/s and mode to half-duplex 100 MB
Full: Speed is set to 100 MB/s and mode to full-duplex.
Status
Lets users view the current status of the LAN interface.
The possible states are:
Up: the resource is operational.
Down: the resource is not operational.
Consult your System Administrator for the appropriate configuration information
before changing the settings
To modify the configuration of the LAN1 settings:
1. In the IP Address box type the IP address.
An example of how to format the information is shown at the right of the box.
2. In the SubNet Mask box type the subnet mask
3. From the Connection Type list select the connection type.
4. Press the Tab key to save the settings.
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To view LAN performance:
1. On the menu, click Performance and then click LAN Graph.
The LAN Graph Statistic Chart appears.
2. On the menu, click Performance and then click LAN Table.
The LAN Graph Statistic Table appears.
For information on using performance tables and graphs, refer to Graphs and tables
on page 154.
3. Click the LAN navigation key to close the navigation tree.
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WAN primary links
You configure WAN resource settings from Unified Manager.
WAN Interfaces have names like WAN1 and WAN2. If your Enterprise Edge
server has a permanent WAN card, WAN1 and WAN2 are interfaces from this card.
They can run Frame Relay or PPP on a permanent WAN Link operating at T1
speed. Click on these interfaces to see their description.
If your Enterprise Edge server also contains a modem card with dial up interfaces,
they appear as WAN3, WAN4 and so on. Click on these interfaces to see their
description. If your Enterprise Edge server does not have a WAN card, dial-up
interfaces appear as WAN1, WAN2 and so on.
The configurable parameters and options are different for permanent WAN links
and for dial-up WAN links. In this document, it is assumed that WAN1 and WAN2
are permanent WAN links and WAN3 and others, are be dial-up interfaces.
To view the WAN primary links
1. Click WAN to view the available WAN resources to configure.
2. Click the WAN navigation key to expand the navigation tree.
Clicking the WAN navigation key expands the navigation tree but doesn’t
display the summary of configurable WAN resources.
3. On the navigation tree, click WAN1 or WAN2.
Clicking the WAN1 or WAN2 navigation key causes the key to disappear.
You must click WAN1 or WAN2.
The screen displays the WAN Summary, WAN Line Parameters, WAN Frame
Relay Parameters, WAN PPP Parameters, and PVC Congestion Control
settings.
Note: The WAN Frame Relay Parameters do not appear unless frame relay is
chosen as your link protocol in the WAN Summary. To display the
WAN frame relay parameters, from the Link Protocol list box select
Frame Relay. Press the Tab key to update the screen. A configurable
WAN Frame Relay Parameters dialog does not appear unless the
current link protocol is PPP.
4. Scroll to view any settings that are not displayed.
5. Configure the WAN Summary, WAN Line Parameters, WAN Frame Relay
Parameters and WAN PPP Parameters screen from Unified Manager.
Configure the PVC congestion control screen using the menu.
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If your current link protocol is Frame Relay, you may have to configure WAN
Frame Relay parameters and PVC Congestion Control entries. If your current link
protocol is PPP, you may have to configure WAN PPP Parameters.
If the WAN port you are configuring is a T1 Port, you may have to configure WAN
Line Parameters. If the port you are configuring is a synchronous (Sync) port, WAN
Link Parameters have no effect, and are ignored. See the description of the port in
WAN Summary section to see which port you are configuring.
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WAN Primary Link Summary Parameters
The WAN summary settings are:
Setting
Definition
IP Address
Lets users specify the IP address of the WAN interface in a valid dot format.
Type the data in the following dot format: 10.10.10.1.
SubNet Mask
Lets users specify the subnet mask in a valid dot format of the WAN interface.
Type the data in the following dot format 255.255.255.0.
Physical Address Shows the physical address of the WAN interface.
Description
Shows the description of the network interface card that supports the WAN
interface.
Version
Shows the version indicator of the WAN interface.
Speed
Shows the operational speed of the WAN interface.
Status
Shows the current resource status of the WAN interface.
The possible states are:
Up: the resource is operational.
Down: the resource is not operational.
Link Protocol
Lets users specify PPP or frame relay protocol.
If you change the link protocol, the configuration screen changes to include
fields corresponding to the link protocol you choose. To ensure proper
operation, always refresh the page by clicking View and then Refresh.
Compression
Speed
Lets users specify fast, medium, normal, slow, or no data compression
configuration.
Frame Size
Lets users specify the maximum frame size for the layer-2 packet carried on
this port.
To modify the configuration of the WAN1 or WAN2 summary screen:
6. In the IP Address box type the IP address.
7. In the SubNet Mask box type the subnet mask.
8. From the Link Protocol list box choose Frame Relay or PPP.
Note: If you choose Frame Relay, press the Tab key to update the screen. A
configurable WAN Frame Relay Parameters screen appears.
9. From the Compression Speed list box select the compression speed.
10. In the Frame Size box type the frame size.
11. Press the TAB key to save your settings.
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WAN Primary Link Line Parameters
The WAN Link Line Parameters settings are:
Setting
Definition
Channel Rate
Lets users set the data rate for each of the DS0 channels in the T1 line.
Clock Source
Lets users set an internal or external T1 clock source.
Frame Type
Lets users set the type of framing to be adopted in the T1 line.
You can select either SF(D4) or ESF for frame type. SF(D4) transmits
superframes consisting of 12 individual frames. ESF transmits superframes
consisting of 24 individual D4 frames and provides enhanced signaling and
synchronization.
ESF lets you testing the digital line while it is in use.
Always use the frame type that the equipment at the receiving end expects.
Line Coding
Lets users set the type of encoding used in the T1 line.
You can select either B8ZS or AMI for this parameter. B8ZS (Bipolar with 8
Zero Substitution) line coding replaces a block of eight consecutive binary zeros
with an 8-bit B8ZS code containing bipolar violations in the fourth and seventh
bit positions of the substituted code. In the receiving direction, the B8ZS code is
detected and replaced with eight consecutive binary zeros.
AMI line coding is also bipolar: a binary zero is transmitted as zero volts, and a
binary 1 is transmitted as either a positive or negative pulse, opposite in polarity
to the previous pulse.
Always use the line coding method that the equipment at the receiving end
expects.
Line Polarity
Lets users set normal or inverted line polarity in the T1 line. The option inverted
is meaningful only if LineCoding is AMI.
Pulse Density
Lets users control whether the DSU/CSU maintains the minimum level of 1s on
the line for AMI encoding.
Channel List
Lets users create a list of channels used in the T1 line.
You can specify multiple channel numbers in a comma-separated list. Each item
in the list can contain a range of channel numbers, with the limits of the range
separated by a hyphen character. For example, this is a valid value for channel
list: 3,5,6,10-15,18,20-23. If you use all of the channels, specify it by using the
string All.
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To modify the configuration of the WAN1 or WAN2 Line Parameters screen:
1.
Scroll to view the WAN Line Parameters screen.
2. From the Channel Rate list box select the channel rate.
3. From the Clock Source list box select the clock source.
4. From the Frame Type list box select the frame type.
5. From the Line Coding list box select the line coding.
6. From the Line Polarity list box select the line polarity.
7. From the Pulse Density list box select the appropriate pulse density and close
the list box.
8. In the Channel List box.type the channel list.
Specify a list of channels numbers or their ranges separated by a comma or
hyphen. Ranges can be mixed with individual entries.
9. Press the Tab key to save the settings.
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WAN Primary Link Frame Relay Parameters
The WAN Frame Relay Parameters are:.
Setting
Definition
LMI Type
Lets users set the type of link management protocol used on this link.
This value must match the corresponding value set in the Frame Relay
service provider’s switch. Permitted values are ANSI, LMI, and
CCITT. The default setting is ANSI.
Polling Interval
Lets users set a value, in seconds, as an interval between LMI status
inquiry messages. This value must match the corresponding value set in
the Frame Relay provider’s switch. Permitted values are between 5-30
(in seconds). The default setting is 10.
Full Enquiry Interval
Lets users set the maximum number of LMI Status Enquiry messages
sent before sending a Full Status Enquiry request. This value must
match the corresponding value set in the Frame Relay provider’s
switch. Permitted values are between 1 and 255 (in seconds). The
default setting is 6.
Error Threshold
Lets users set the maximum number of consecutive failures permitted
in LMI Status Enquiry before marking the link non-operational. It is
also the number of successful consecutive LMI Status Enquiry
messages that must be received before marking a link as operational.
Permitted values are between 0 and MAXINT. The default setting is 3.
Monitored Events
Lets users set the number of events sampled for making decisions about
the error threshold. Set the number higher than the values set in the
error threshold. Permitted values are a number between 0 and
MAXINT. The default setting is 4.
DS Code
Lets users set the differentiated services code (DSCode) recognized by
the frame relay driver for prioritization. This value is used as a mask
value. When an IP packet is sent down, the frame-relay driver checks if
the packet's DSCode field (known as TOS byte in earlier documents)
has any of the bits specified in this field set (a bitwise AND operation is
performed between this field's value and the DSCode field of the IP
packet and the result is checked for 0). If any of the bits is set (result is
non-zero), the frame relay network is signaled to handle this packet
with priority by clearing the 'D/E' (discard eligibility) bit in the frame
relay packet header. If none of the bits specified in this field are set in
the IP packet header, 'D/E' bit is set in the frame-relay packet header,
marking the packet as a likely candidate for packet drop in case of
congestion in the frame relay network.
This field's value carries the same semantics as the 'differentiated
services codepoint' discussed in RFC2474. The least significant two
bits are ignored.
Compression Enabled
PVCs
Lists PVCs on which compression is enabled. If the compression field
is Disabled, the field does not have any meaning. If the compression
level Enabled, compression and decompression are performed on the
data going to and coming from the PVCs in this list.
The value can be a comma-separated list of DLCI numbers. You can
specify a range of DLCIs by specifying the lower and upper boundaries
by a hyphen. You can mix individual numbers and ranges.
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Setting
Definition
Access Rate
Lets users set, in kbps, the maximum access rate on the interface
running frame-relay. The frame-relay congestion control engine uses
this value to limit or shape traffic. Specify a value computed using the
T1 channels available for data communication on the port attached to
this interface and their data rates.
To modify the configuration of the WAN Frame Relay Parameters:
1. Scroll to locate the WAN Frame Relay Parameters screen.
2. From the LMI Type list box select the LMI type.
3. In the Polling Interval box type the polling interval in seconds.
4. In the Full Enquiry Interval box type the full enquiry interval.
5. In the Error Threshold box type the error threshold.
6. In the Monitored Events box type the appropriate monitored events.
7. In the DS Code box type the DS code.
8. In the Compression Enabled PVCs box type the compression.
9. In the Access Rate box type the access rate in kbps.
10. Press the Tab key to save the settings.
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The WAN PVC Congestion Control settings are:
Setting
Definition
Entry (CC#)
Uniquely identifies the congestion control entry on the interface. Use
the format specified for the entry identifier. It must include the prefix
'CC' followed by a unique number in the table. For example, 'CC2' is a
valid number. If you don't use consecutive numbers while adding the
entry, the system adjusts them to be consecutive. If you specify an
existing entry while adding an entry, the existing entry is modified with
new values. While modifying an entry, the name can't be changed.
DLCI
Lets users set the DLCI number for the PVC to be congestion
controlled. If a DLCI is not configured, it is not congestion controlled.
Enterprise Edge uses one-second intervals to measure this parameter.
CIR
Lets users set, in kbits, the carrier guarantees the router transmits over a
specified time interval when congestion is not present.
Enterprise Edge uses one-second intervals to measure this parameter.
Committed Burst (bC)
Lets users to define the number, in kbits, of bits the router transmits
over a specified time interval if congestion is present. Usually this value
is set for 1/4 the value of the CIR.
Enterprise Edge uses one-second intervals to measure this parameter.
Excess Burst (Be)
Combined with the committed burst rate, lets users set, in kbits, the
maximum number of bits the router transmits over a specified time
interval if there is no congestion. Both Be and bC must be less than or
equal to the line speed.
To add PVC congestion control:
1. On the menu click Configuration and then click Add PVC Congestion
Control.
The PVC Congestion Control dialog box appears.
If an entry range has not been selected an error message appears.
2. In the Entry (CC#) box type the entry that looks like “CCxx” where “xx” is a
unique integer.
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3. In the DLCI box type the DLCI.
4. In the CIR (kbps) box type the CIR in kbps.
5. In the Committed Burst BC (kbits) box type the committed burst in kbits.
6. In the Excess Burst BE (kbits) box type the excess burst in kbits.
7. Click the Save button to return to Unified Manager.
To modify PVC congestion control:
1. Click an entry in the PVC Congestion Control range.
2. On the menu click Configuration and then click Modify PVC Congestion
Control.
The PVC Congestion Control dialog box appears.
3. Click any box that requires modification and type the necessary changes.
4. Click the Save button to return to Unified Manager.
To delete PVC congestion control:
1. Click an entry in the PVC Congestion Control range.
2. On the menu click Configuration and then click Delete PVC Congestion
Control.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to delete PVC congestion and return to Unified Manager.
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WAN Primary Link PPP parameters
The WAN PPP Parameters are:
Setting
Definition
Keep Alive Interval
Lets users specify the interval between kept alive messages sent when
there is no regular traffic on the PPP link.
Cisco’s Encapsulation
Mode
Lets users enable or disable the Cisco compatibility mode.
To set the WAN PPP parameters:
1. Scroll to the WAN PPP Parameters screen.
The WAN PPP Parameters screen appears.
2. In the Keep Alive Interval box type the keep alive interval in seconds.
3. From the Cisco’s Encapsulation Mode list box to enable or disable the Cisco
compatibility mode.
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WAN Primary Link performance graphs and tables
To access the WAN Primary Link performance graphs and tables:
1. On the menu click Performance and then click WAN Graph.
The WAN Graph Statistic Chart appears.
2. On the menu click Performance and then click WAN Table.
The WAN Table: Statistic Table appears.
For information on using the WAN statistic chart and the WAN statistic table, refer
to Graphs and tables on page 154.
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WAN Backup Links
WAN3 and WAN4 are dial up interfaces that are configured according to the V.90
modem in the Enterprise Edge server. You must click WAN3 to see its description.
Dial up WAN Links always use PPP as link-layer protocol. They must be connected
to PPP capable RAS Servers that can run RIP or can accept static routes for proper
operation.
1. On the navigation tree, click WAN3.
Clicking the WAN3 navigation key causes the key to disappear. You must
choose WAN3.
The WAN Summary, WAN Link Parameters, and WAN Access Parameters
screen appears.
2. Scroll to see any settings that are not displayed.
1. From the IP Address list box select the appropriate IP address assignment or
type a new value.
2. From the Status list box enable or disable the connection to the backup link.
3. Press the Tab key to save the settings.
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WAN Backup Link Summary Parameters
The WAN Summary contains these settings:
Setting
Definition
IP Address
Lets users set the IP address of the modem interface in a valid dot format when
it connects.
Users can set a fixed IP Address for the dial-up interface. If a fixed address is
specified, it is used by Enterprise Edge to connect to the receiving end.
Instead, users can choose RemoteAssigned to indicate that Enterprise Edge
must obtain an IP address from the remote end and use it. The address
obtained depends on the RAS server that the Enterprise Edge server connects
to.
Description
Shows a description for the subsystem that is encapsulated by the DLL.
Version
Shows the version for the subsystem that is encapsulated by the DLL.
Status
Lets users set the modem interface resource status.
The possible states are:
Up: the auto WAN backup service is enabled and the dial-up link is currently
connected.
Down: the auto WAN backup service is enabled and the dial-up link is
currently
disconnected.
Enabled: the interface is enabled for use by the auto-backup server.
Disabled: the auto WAN backup service is disabled.
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WAN Backup Link Parameters
The WAN Link Parameters are:
WAN Link Parameters Dialog Definitions
Setting
Definition
Telephone Number
Lets users specify a telephone number to be used to connect using
the modem interface. If needed, include area codes, if any, and all
necessary digits to dial an external number.
Alternate Telephone
Number
Lets users specify an alternate number to be used to connect using
the modem interface. Include area codes, if any, and all necessary
digits to dial an external number.
Connect Rate
Lets users specify the initial speed (in bits per second) for the
modem to connect. Set to the maximum permissible value for best
results. Permitted values: 57600, 38400, 19200, 9600, 4800. Note:
This is the initial rate, actual rate is always negotiated.
Dial Retries
Lets users specify the number of tries the system attempts to make a
link operational before marking it non-operational. A positive
number must be used.
Dial Interval
Lets users specify the interval, in seconds, between successive
attempts to make a link operational.
Speaker Mode
Lets users enable or disable the speaker during initial link
establishment.
IP Header Compression
Lets users enable or disable IP header compression. To function, the
receiving end must utilize this feature to work.
Software Compression
Lets users enable or disable data compression in the software,
instead of the modem. For dial-up connections, Unified Manager
uses Microstate Point-to-Point Compression algorithm (MPPC).
Hardware Compression
Lets users enable or disable data compression in the hardware
instead of the software.
PPP LCP Extensions
Lets users specify whether or not to enable or disable PPP LCP
extensions that include Time-Remaining, Identification, and
Callback features. The Callback feature is not supported even if
LCP extension is enabled.
1.
Scroll to see the WAN Link Parameters settings.
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Accessing WAN Link Parameters
2. In the Telephone # box type your telephone number choice.
3. In the Alternate Telephone # box type your alternate telephone number
choice.
4. From the Connect Rate list box select your connection rate choice.
5. In the Dial Retries box type the number of times to attempt dialing if the
connection fails.
6. From the Speaker Mode list box select your speaker mode choice.
7. From the IP Header Compression list box select enable or disable.
8. From the Software Compression list box select enable or disable.
9. From the Hardware Compression list box select enable or disable.
10. From the PPP LCP Extensions list box select enable or disable.
11. Press the Tab key save the settings.
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WAN Backup Access Parameters
The WAN Access Parameters are:
Setting
Definition
Authentication
Lets users specify the authentication type for the link.
Users can choose AllowClearText or EncryptedOnly. If
EncryptedOnly is selected, only encrypted authentication such as
CHAP is used on this interface during PPP authentication protocol. If
AllowClearText is selected, CHAP is used first and if the receiving
end of the link declines, PAP is used to authenticate the link user.
Two Way Authentication Lets users enable or disable link authentication in both directions.
User ID (name password) Lets users specify a user name and a password that the link uses to
authenticate itself while dialing out to another router.
1. Scroll to find the WAN Access Parameters.
2. From the Authentication list box select the authentication type.
3. From the Two Way Authentication list box select the two-way
authentication type.
4. In the User ID (name password) box type the user ID, separating the user
name and password with a space.
5. Press the Tab key to save the settings.
6. Click the WAN navigation key to close the navigation tree.
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MSC
1. On the Navigation Tree click MSC to view the available MSC resources to
configure.
The MSC Resources screen appears.
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Telephony
1. On the Navigation Tree click Telephony to view the available telephony
resources to configure.
The Telephony Resources screen appears.
Accessing Telephony Resources
2. Click the Resources navigation key to close the navigation tree.
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Configuring Services Settings
6
Configuring Services Settings includes:
•
DHCP Settings
•
DNS Settings
•
Web Caching/Proxy
•
Routing settings
To access the services settings:
1. On the menu click Group and then click Services
or
click Group and then click Comprehensive.
2. On the navigation tree click the Enterprise Edge key and then click the
Services key.
The available Enterprise Edge services appear.
3. Click the Services navigation key to expand the navigation tree.
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DHCP
To configure DHCP services settings:
1. On the navigation tree click DHCP to view the available resources to
configure.
Click the DHCP navigation key to expand the navigation tree, but clicking on
the key doesn’t display the summary of configurable DHCP services. You
must click DHCP.
The DHCP Global Options and Summary settings appear.
2. Scroll to view any settings not displayed on Unified Manager.
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The settings in the DHCP Global Options and DHCP Summary screen are:
Setting
Definition
Domain Name
Lets users specify a domain name that is passed to the client when Enterprise
Edge responds to a client’s DHCP requests.
This setting is automatically set to 'Domain' field in 'DNS Summary' page.
This means that all the DHCP clients of an Enterprise Edge server are in the
same DNS domain as the Enterprise Edge server. This is also correct since
Enterprise Edge runs only a DNS cache and does not introduce another DNS
zone.
Change the Domain setting in the DNS Summary to make a change in this
setting. Occasionally you can change the value of Domain in DHCP. If you
do, first make any changes to Domain in the DNS Summary to avoid
overwriting your changes.
WINS Node
Type
Lets users specify a clients WINS node type.
Enterprise Edge automatically sets this value to 8 (indicating H-Node) if the
IP Address is changed on any of the LAN interfaces. All DHCP clients of
Enterprise Edge are set to h-node type when they get their IP properties from
Enterprise Edge. This setting configures the DHCP client PCs to use p-node
name resolution before resorting to b-node name resolution, which is efficient
when there is a WINS server configured for the network. Enterprise Edge also
includes a WINS server.
Other options available for this field are:
1: indicates a b-node that uses broadcast mechanism for NetBIOS name
resolution
2: indicates a p-node that uses point-to-point mechanism involving a WINS
Server for NetBIOS name resolution
4: indicates a m-node that first uses broadcast and then point-to-point
mechanism for NetBIOS name resolution.
Description
Shows a description of the Enterprise Edge server.
Version
Shows the version number of the Enterprise Edge server.
Status
Lets users enable or disable the DHCP server. When disabled, clients need to
be assigned static IP addresses.
3. In the Domain Name box type the appropriate domain name.
This is set in Enterprise Edge configuration. Use caution if you change it.
4. In the WINS Node Type box type the appropriate WINS Node Type.
This is set in Enterprise Edge configuration. Use caution if you change it.
5. From the Status list box select either enable or disable.
6. Press the Tab key to save the settings.
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DHCP LAN
1. Click the DHCP navigation key to expand the navigation tree.
2. On the Navigation tree click LAN1.
Clicking the LAN1 navigation key causes the key to disappear. You must
choose LAN1 to display the configurable DHCP LAN1 services. If your
Enterprise Edge system has multiple LAN interfaces, if is possible that you
see multiple DHCP Scopes under DHCP. They are be named LAN1, LAN2.
This section describes configuring DHCP scope for LAN1. Follow the same
instructions to configure any of the parameters under scope for LAN2.
The screen displays the LAN Scope Specific Options, Address Range, and
Excluded Address Range dialog box.
3. Scroll to view settings not displayed on Unified Manager.
4. You configure the scope-specific options dialog box from Unified Manager.
The LAN address range and the LAN excluded address services screen is
configured through the menu.
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Note: If the IP Address or subnet mask for a LAN interface is changed, the
corresponding DHCP scope is created or modified for the interface.
This operation also involves setting default values for some
parameters. By default, Enterprise Edge sets the IP Address of
corresponding LAN interface to DNS Server, WINS Server, Default
Gateway options of the scope. It also sets the lease time to 3 days,
creates a range of addresses for the scope. If the IP Address of the
LAN interface is in the lower half of the subnet, the address range set
for the scope includes all the address above the LAN interface address.
If the IP Address of the LAN interface is in the upper half of the
subnet, the address range set for the scope includes all the address
below the LAN interface address. By default, the scope is enabled.
The DHCP LAN1 Scope Specific Options, Address Range and Excluded Address
Range settings are:
Setting
Definition
DNS Server
Lets users specify the clients’ DNS server.
The value for this parameter is automatically assigned by Enterprise Edge's
auto-configuration system. If the IP Address or subnet mask for the
corresponding LAN interface is changed, this value gets overwritten. Use
caution when changing this value.
WINS Server
Lets users specify the client’s WINS server.
The value for this parameter is automatically assigned by Enterprise Edge's
auto-configuration system. If the IP Address or subnet mask for the
corresponding LAN interface is changed, this value gets overwritten. Use
caution when changing this value.
Default Gateway
Lets users specify the client’s default next-hop router.
The value for this parameter is automatically assigned by Enterprise Edge's
auto-configuration system. If the IP Address or subnet mask for the
corresponding LAN interface is changed, this value gets overwritten. Use
caution when changing this value.
Lease Time
Lets users specify the time, in seconds, from an address assignment until
the client’s lease expires.
Scope Status
Lets users enable or disable the scope.
Address Range
Lets users specify the valid IP addresses that are assigned to DHCP clients.
Excluded Address
Lets users specify IP addresses that are not available to DHCP clients.
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To modify the configuration of the Scope Specific Options screen:
1. In the DNS Server box type the name of the DNS server.
This field is configured automatically. Use caution when you change it.
2. In the WINS Server box type the name of the WINS server.
This field is configured automatically. Use caution when you change it.
3. In the Default Gateway box type the default gateway.
This field is configured automatically. Use caution when you change it.
4.
In the Lease Time box type the lease time.
This field is configured automatically. Use caution when you change it.
5. From the Scope Status list box select the scope status.
6. Press the TAB key to save the settings.
To modify, add, or delete a DHCP address range or excluded address range:
1. Assign only one IP Address range for a DHCP Scope and exclude ranges of
addresses in it from being assigned to clients.
To modify address ranges:
1. Click an address in the address range table.
2. On the menu click Configuration and then click Modify Address Ranges.
The Address Range dialog box appears.
3. Type the necessary changes in any of the boxes.
4. Click the Save button to return to Unified Manager.
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To add an address range:
1. On the menu click Configuration and then click Add Address Range.
The Address Range dialog box appears.
2. In the Range box type the range.
The range field uniquely identifies a range value in the scope. The value for
this field is used as key, and must follow certain conventions. It must always
start with the prefix 'R' followed by a unique number identifying the range in
the table. For example, 'R2' is a valid name.While adding, specify nonrecurring values for the unique number. While adding, if you specify an
existing range name, it modifies the existing range. Using non-sequential
numbers results in automatic reassignment of sequential numbers. When you
modify a range, you can't change the range name. The range name does not
have any significance other than identifying an entry.
3. In the Start Address box type the start address.
4. In the End Address box type the end address.
Scroll to see any fields that are not displayed.
Make sure the start address and end address are in the same subnet.
5. Click the Save button to return to Unified Manager.
To delete address ranges:
1. Click an address in the Address Range table.
2. On the menu click Configuration and then click Delete Address Ranges.
A message appears asking you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
Note: Deleting or modifying an IP Address range removes any excluded
addresses that are completely contained in the original address range
value.
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To modify excluded address ranges:
1. Click an excluded address in the Excluded Address Range table.
2. On the menu click Configuration and then click Modify Excluded Address
Ranges.
The Excluded Address Range dialog box appears.
3. In any box that requires modification type the necessary changes.
4. Click the Save button to return to Unified Manager.
To add excluded address ranges:
1. On the menu click Configuration and then click Add Excluded Address
Range.
The Excluded Address Range dialog box appears.
2. In the Range box type the range.
Note: The range field uniquely identifies an excluded range value in the
scope. The value for this field is used as key, and must follow certain
conventions. It must always start with the prefix 'E' followed by a
unique number identifying the range in the table. For example, 'E2' is a
valid name. While adding, specify non-recurring values for the unique
number. While adding, if you specify an existing excluded range
name, it modifies the existing range. Using non-sequential numbers
results in automatic reassignment of sequential numbers. When you
modify an excluded range, you can't change the range name. The
excluded range name does not have any significance, other than
uniquely identifying an entry.
3. In the Start Address box type the start address.
4. In on the End Address box type the end address.
Scroll to see any fields that are not displayed.
Note: Make sure the start address and end address are in the same subnet,
and an excluded address range is completely contained in an IP
address range specified for the subnet.
5. Click the Save button to return to Unified Manager.
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To delete excluded address ranges:
1. Click an excluded address in the Excluded Address Range table.
2. On the menu click Configuration and then click Delete Excluded Address
Ranges.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
4. Click the DHCP navigation key to close the navigation tree.
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DNS
To configure DNS services settings:
1. On the navigation tree click DNS.
Clicking the DNS navigation key causes the key to disappear. You must click
DNS to view the available configurable DNS services.
The DNS Summary screen appears.
The DNS Summary settings are:
Setting
Definition
Description
Lets users view the description of the server in cache mode.
Version
Lets users view the version of the software interface.
Status
Lets users enable or disable the DNS cache proxy in Enterprise Edge.
Domain
Lets users specify the domain name that Enterprise Edge and its DHCP clients
uses. When modified, contents of this setting are automatically copied to
Domain Name global options (O15) under DHCP.
Primary Server
Lets users specify the primary server IP address in a valid dot format. More
than one address can be specified separated by a space; DNS cache uses them
in the specified order to resolve names.
Forward Timeout Lets users specify the time-out, in seconds, used in resolving queries using the
DNS servers that are specified in DNS server.
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To modify the configuration of the DNS summary:
2. From the Status list box select the status.
3. In the Domain box type the domain.
4. In the Primary Server box type the primary server.
5. In the Forward Timeout box type the forward timeout.
6. Press the Tab key to save the settings.
Routing
To configure routing services settings:
1. On the Navigation Tree click Routing to view the services to configure.
Clicking the Routing navigation key expands the navigation tree but doesn’t
display the summary of configurable routing services. You must click
Routing.
The Summary and Global Settings screen appears.
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The LAN1 Summary and RIP Parameters Routing settings are:
Settings
Definition
Description
Shows a description of the router.
Version
Shows the version of the router.
Status
Lets users enable or disable the router.
Packet Filtering
Lets users enable or disable packet filtering.
When the system comes up the first time, this value is N/A, indicating that the
Management system cannot retrieve pertinent information. Set it to Disabled
or Enabled and valid values are displayed. Disabling packet filtering here
disables it on all interfaces. The router performs better when packet capturing
is disabled.
RIP Log Level
Lets users specify a log-level for the RIP routing protocol manager:
maximum generates the maximum log
warnings also, generates a log for warning conditions too
errors only, generates log errors only (for use during normal operations)
disabled disables logging (not recommended).
Triggered Update Lets users specify the minimum interval between sending triggered updates.
Interval
1. From the Status list box enable or disable the router.
2. From the Packet Filtering list box enable or disable packet filtering.
3. From the RIP Log Level list box select the RIP log level.
4. In the Triggered Update Interval box type the triggered update interval.
5. Press the TAB key to save the settings.
LAN Routing
This section describes the instructions to configure LAN1 interfaces for routing. If
there are other existing LAN or WAN interfaces, they also appear in Routing.
Follow the same instructions to configure them.
1. On the navigation tree click the Routing navigation key to expand the menu.
2. On the navigation tree click LAN1.
Clicking the LAN1 navigation key causes the key to disappear. You must click
LAN1 to view the available services to configure.
The Summary, Input Filter, Output Filter, and Static Route screen appears.
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Note: The RIP Parameters screen is not displayed unless you choose RIP as
your routing protocol in the LAN1 summary screen. To display the
RIP parameters, click the Routing Protocol list box and choose RIP.
Then press the Tab key to update the screen. A configurable RIP
screen appears.
You configure the Routing summary screen from Unified Manager.
The Input Filter, Output Filter, and Static Route screen is configured through
the menu.
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The LAN1 Routing Services Summary and RIP Parameters settings are:
Setting
Definition
Routing Protocol Lets users select the Routing protocol to run over the interface. Select RIP to
run RIP protocol or select NONE to disable running any routing protocol. If
RIP is selected, interface-specific RIP parameters appear in the bottom of the
screen. You can configure other RIP parameters on this interface
Input Filter
Action
Determines what action is performed for the packets that match the filter
criteria. You can either forward them to upper layer, possibly for further
routing or drop them.
You can select the action only if you have set any of the input or output filters.
Otherwise, they show up as N/A and you can't modify them.
Output Filter
Action
Determines what action is performed for the packets that match the filter
criteria. You can either forward them to the next hop or drop them.
You can select the action only if you have set any of the input or output filters.
Otherwise, they show up as N/A and you can't modify them.
Metric
Specifies the associated metric value for the routes through this interface.
Metric values of all routes learned through this interface are incremented by
this value. The final value used in making routing decisions is forwarded to
other routes through RIP updates.
Routing Table
Update Mode
Lets users specify the routing table update mode for the interface. In On
Demand mode, the router sends its table when requested by another
established router. In Periodic mode, the router sends its table to other
established router at regular intervals.
Route
Announcement
Type
Lets users specify the route-announcement type for the specified interface.
The choices are:
Disabled: sending RIP packets is disabled on this interface. This requires the
other routers in the subnet have static routes configured to access the
Enterprise Edge server.
RIP 1: sends RIP v1 packets in broadcast only.
RIP 1 Compatible: sends RIP v1 and RIP v2 packets in broadcast. Use this for
a mixed environment of RIP v1 and RIP v2
RIP 2: sends RIP v2 packets in multicast only. Use this only if all other routers
connected to the Enterprise Edge server are RIP v2 capable.
Route Accept
Type
Lets users choose to accept announcements in either RIP1, RIP2, or both
formats.
The choices are:
Disabled: accepting RIP packets is disabled. If this choice is selected, the user
is prompted to create static routing entries in the Enterprise Edge server to
access other networks connected through this interface. This method is
preferable if you want to keep the routing table small in the Enterprise Edge
server.
RIP 1: accepts only RIP v1 packets
RIP 1 Compatible: accepts packets of both RIP v1 and RIP v2
RIP 2: accepts only RIP v2 packets.
Route Expiration Lets users specify, in seconds, the time interval to mark an established router
Interval
that has not updated its table eligible for removal.
Route Removal
Interval
Lets users specify, in seconds, the time interval between route expires and
when it is removed from the routing table.
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Setting
Definition
Route
Announcement
Interval
Lets users specify, in seconds, the time interval between route
announcements.
Route Tag
Lets users create a special tag that is included in routes announced over the
interface. This helps identify route packets while debugging routing problems
using a network sniffer.
Poisoned Reverse Lets users enable poison reverse.
The choices are:
Actual: the actual, original RIP updates are performed over this interface. All
the routes learned through this interface are also included as is in the RIP
updates sent over this interface. This leads to mutually deceiving route
updates that require multiple routing updates that is termed 'counting to
infinity' in RIP terms.
Split: in the routing updates sent over this interface, router does not include
the routes learned over this interface. This mode performs better than Actual,
but still requires significant amount of time to converge routes. It requires all
routes corresponding to an unreachable network expire before removing them
from the routing table
Poison Reverse: in the routing updates sent over this interface, the router
includes the routes learned over this interface, but 'poisoned metrics'. All
metric values are set to RIP infinity (16) for the routes learned through this
interface. This results in the fastest convergence.
Triggered
Updates
Lets users enable triggered updates, or immediate route update
announcements whenever a metric or other parameter changes in the route
table entries.
If triggered updates are enabled, the changes are gathered for the interval
specified in the global parameter Triggered Update Interval and then sent over
this interface. Triggered updates results in more frequent, smaller RIP
updates.
Announce
Default Route
Lets users enable or disable announcing default routes in incoming route
announcements. Use caution when enabling this feature as improper
configuration causes a loss of network connectivity. Default routes are always
set statically on the router.
Accept Default
Route
Lets users enable or disable accepting incoming default routes.
Set default routes as static routes. If you are run Net Link Manager to
automatically backup primary WAN link using a dial-up link, it manages the
default routes and the default routes that you add are non-operational as soon
as a link breaks or comes up.
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To modify the configuration of the LAN1 routing summary screen:
1. From the Routing Protocol list box select NONE or RIP.
If you choose RIP, press the Tab key to update the screen.
A configurable RIP Parameters screen appears.
2. From the Input Filter Action list box select the input filter action.
3. From the Output Filter Action list box select the output filter action.
4. Press the Tab key to save the settings.
This operation fails if filters have not been added to the interface.
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To modify the configuration of the RIP Parameters:
1. Scroll to locate the RIP Parameters screen.
2. In the Metric box type the cost integer value.
3. From the Routing Table Update Mode list box select the mode.
4. From the Route Announcement Type list box select the routing
announcement.
5. From the Route Accept Type list box select the route accept type.
6. In the Route Expiration Interval box type the expiration interval value in
seconds.
7. In the Route Removal Interval box type the removal interval value in
seconds.
8. In the Route Announcement Interval box type the announcement interval
value in seconds.
9. In the Route Tag box type the route tag.
10. From the Poisoned Reverse list box select the appropriate mode.
11. From the Triggered Updates list box enable or disable triggered updates.
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12. From the Announce Default Route list box enable or disable announcing
default routes.
13. From the Accept Default Route list box enable or disable accepting default
routes.
14. Press the TAB key to save the settings.
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The LAN1 Filter and Static Route settings are:
Setting
Definition
Input filter
Specifies the filter name and identifies an individual input filter on the
specified interface. Its value must follow certain conventions. It must have the
prefix IF followed by a unique number that identifies the input filter on the
interface. For example, IF2 is a valid value. While adding, specify nonrecurring values for the unique number.
While adding, if you specify an existing filter name, it modifies the existing
filter. Using non-sequential numbers results in automatic reassignment of
sequential numbers. While modifying a filter, you can't change the name. The
filter name does not have any significance other than to identify an entry.
Output filter
Specifies the filter name and uniquely identifies an individual output filter on
the specified interface. Its value must follow certain conventions. It must have
the prefix OF followed by a unique number that identifies the input filter on
the interface. For example, OF2 is a valid value. While adding, specify nonrecurring values for the unique number.
While adding, if you specify an existing filter name, it modifies the existing
filter. Using non-sequential numbers results in automatic reassignment of
sequential numbers. While modifying a filter, you can't change the name. The
filter name does not have any significance other than to identify an entry.
Source address
Lets users specify the source IP address in a valid dot format.
If you don't want to match the source address field in your filter, leave this
setting and the source mask empty.
Source mask
Lets users specify the source mask for the IP address in a valid dot format.
If you specify a source address, you must specify the source mask. If you
don’t specify the source address, you must not specify the source mask. The
source address and source mask must match. Bitwise, the source address and
the source mask must be equal to the source address.
Destination
address
Lets users specify the destination IP address in a valid dot format.
If you are specifying a filter, this field specifies the destination address of the
IP packet that matches the filter. If you don't want to match the destination
address, leave this field empty.
If you are specifying a static route, this field must not be empty. It must be a
valid network or host address.The destination mask must match the address
specified in this setting.
Destination mask Lets users specify the mask of the destination address in a valid dot format.
If you specify a destination address, you must specify a destination mask. If
you don’t specify the destination address, you must not specify the source
mask. The destination address and destination mask must match; i.e. bitwise
AND of destination address and destination mask should be equal to
destination address.
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Setting
Definition
Protocol
Lets users specify the protocol to match the filter.
The choices are:
TCP: look for the TCP protocol packets. You can specify source and
destination service ports in other fields. If you don't specify any port numbers
all packets that match this protocol and other criteria, if any, match the filter.
UDP: look for UDP protocol packets. You can further specify source and
destination service ports in other fields. If you don't specify any port numbers
all packets that match this protocol and other criteria, if any, match the filter.
ICMP: look for ICMP protocol packets. You can further specify the ICMP
message types and ICMP codes in other fields. If you don't specify any ICMP
types or codes all packets that match this protocol and other criteria, if any,
match the filter.
Source port/
ICMP type
If the protocol chosen is UDP or TCP, this lets users specify the source port to
match the filter. If the protocol chosen is ICMP, this field specifies the ICMP
code value to look for in the packet to match the filter.
Destination Port/ICMP Code: If the protocol chosen is UDP or TCP, this lets
users specify the additional destination service port to match the filter. If the
protocol chosen is ICMP, this field can contain the optional ICMP code.
Static Route
Specifies the static route name and is used as a key to uniquely identify an
individual static route on the specified interface. Its value must follow certain
conventions. It must have the prefix SR followed by a unique number that
identifies this static route on this interface. For example, SR2 is a valid value.
While adding, specify non-recurring values for the unique number.
While adding, if you specify an existing static route name, it modifies the
existing static route. Using non-sequential numbers results in automatic
reassignment of sequential numbers. While modifying a static route, you can't
change the name. The static route name does not have any significance other
than to identify an entry.
Next Hop Router Lets users specify the IP address in a valid dot format for the next hop router.
Metric Value
Lets users specify the metric value associated with the interface. The metric is
added to the hop count of the routes received through the interface.
Note: If input and output filters are not defined for the LAN1 interface,
modifying input filter action or output filter action in the summary
causes an error message.
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To modify the configuration of LAN1 input filters:
1. Click an input filter in the input filter table.
2. On the menu click Configuration and then click Modify Input Filter.
The Input Filters dialog box appears.
1. In the Source Address box type the source address.
2. In the Source Mask box type the source mask.
3. In the Destination Address box type the destination address.
4. In the Destination Mask box type the destination mask.
5. From the Protocol list box select the response.
6. In the Source Port/ICMP Type box type the source port/ICMP type.
7. In the Destination Port/ICMP Type box type the destination port/ICMP
type.
8. Click the Save button to return to Unified Manager.
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To add LAN1 input filters:
1. On the menu, click Configuration and then click Add Input Filter.
The Input Filter dialog box appears.
2. In the Input Filter box type the input filter.
3. In the Source Address box type the source address.
4. In the Source Mask box type the source mask.
5. In the Destination Address box type the destination address.
6. In the Destination Mask box type the destination mask.
7. From the Protocol list box select the response.
8. In the Source Port/ICMP Type box type the source port/ICMP type.
9. In the Destination Port/ICMP Type box type the destination port/ICMP
type.
10. Click the Save button to return to Unified Manager.
To delete LAN1 input filters:
1. Click a filter in the Filter table.
2. On the menu, click Configuration and then click Delete Input Filter.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
To modify the configuration of LAN1 output filters:
1. Click an output filter in the Output Filter table.
2. On the menu, click Configuration and then click Modify Output Filter.
3. Follow the steps for modifying input filters.
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To add LAN1 output filters:
1. On the menu, click Configuration and then click Add Output Filter.
The Output Filter dialog box appears.
2. In the Output Filter box type the output filter.
3. In the Source Address box type the source address.
4. In the Source Mask box type the source mask.
5. In the Destination Address box type the destination address.
6. In the Destination Mask box type the destination mask.
7. From the Protocol list box select the response.
8. In the Source Port/ICMP type box type the source port/ICMP type.
9. In the Destination Port/ICMP type box type the destination port/ICMP type.
10. Click the Save button to return to Unified Manager.
To delete LAN output filters:
1. Click on an output filter in the Output Filter table.
2. On the menu, click Configuration and then click Delete Output Filter.
3. Follow the steps for deleting input filters.
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To modify the configuration of static routes:
1. Click a static route in the Static Route table.
2. On the menu, click Configuration and then click Modify Static Route.
The Static Route dialog box appears.
3. In the Destination Address box type the destination address.
4. In the Destination Mask box type the destination mask.
5. In the Next Hop Router box type the next hop router.
6. In the Metric Value box type the metric value.
7. Click the Save button to return to Unified Manager.
To add LAN1 static routes:
1. On the menu, click Configuration and then click Add Static Route.
The Static Route dialog box appears.
2. In the Static Route box type the static route.
3. In the Destination Address box type the destination address.
4. In the Destination Mask box type the destination mask.
5. In the Next Hop Router box type the next hop router.
6. In the Metric Value box type the appropriate metric value.
7. Click the Save button to return to Unified Manager.
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To delete LAN static routes:
1. Click a static route in the Static Route table.
2. On the menu, click Configuration and then click Delete Static Route.
3. Follow the steps for deleting output filters.
WAN Routing
To configure WAN routing services:
1. Click the Routing navigation key to expand the navigation tree.
2. On the navigation tree, click WAN1 or WAN2.
Clicking the WAN1 or WAN2 navigation key causes the key to disappear.
You must click WAN1 or WAN2 to view the configurable WAN resources.
The Summary, RIP Parameters, Input Filter, Output Filter, and Static Route
screen appears.
Note: The RIP Parameters screen is not displayed unless RIP is chosen as
your routing protocol in the WAN summary screen. To display the RIP
parameters, click the Routing Protocol list box and select RIP. Then
press the Tab key to update the screen. A configurable RIP screen
appears.
3. Use the scroll bars to locate any fields that are not displayed.
4. Configure the WAN1 or WAN2 routing summary and RIP Parameters screen
from Unified Manager.
Configure the input Filter, output filter, and static route dialog box from the
menu.
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5. Follow the steps outlined in LAN routing settings to complete your
configuration process.
6. Clicking the Routing navigation key to close the navigation tree.
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SNMP
To configure SNMP services settings:
1. On the navigation tree click SNMP.
Clicking the SNMP navigation key causes the key to disappear. You must
click SNMP.
The screen displays the SNMP Summary, Community List, Manager List, and
Trap Community List screen.
2. Configure SNMP summary screen from Unified Manager.
Configure the SNMP Community List, Manager List, and Trap Community List
from the menu.
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The SNMP settings are:
Setting
Definition
Description
Shows the description of the SNMP agent.
Version
Shows the version of the SNMP agent
Status
Lets users enable or disable the SNMP agent.
Authentication
Failure Traps
Lets users enable or disable authentication failure traps.
When enabled, the SNMP agent sends authentication failure traps if there is
an authentication failure. Authentication failure happens if an SNMP manager
application provides a wrong community string or performs an operation that
is not permitted for a community.
3. From the Status list box select enable or disable.
4. From the Authentication Failure Traps list box select enable or disable.
5. Press the Tab key to save the changes.
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SNMP Community List, Manager List, and Trap Community List
The SNMP community list, manager list and trap community services settings are:
Setting
Definition
Community List
Lets users specify the entry name used as a key to uniquely identify an
individual community entry on the SNMP agent. Its value must follow certain
conventions. It must have the prefix C followed by a unique number that
identifies the community name entry on the agent. For example, C2 is a valid
value. While adding, specify non-recurring values for the unique number.
While adding, if you specify an existing community entry name, it modifies
the existing community entry. Using non-sequential numbers results in
automatic reassignment of sequential numbers. While modifying a
community entry, you can't change the name. The community entry name
does not have any significance other than to identify an entry.
Community
Name
Lets users specify the name of the community that the individual managers
use to interact with this agent.
When creating community entries, various access permissions are associated
with these names. Manager stations that use different community names get
different permissions on the SNMP agent.
While creating trap communities, various manager IP addresses are associated
with these values. All the manager stations in a trap community get traps with
the community name specified in the entry.
Manager List
Lets users specify the entry name used to identify an individual manager entry
on the SNMP agent. Its value must follow certain conventions. It must have
the prefix M followed by a unique number that identifies the manager entry on
the agent. For example, M2 is a valid value. While adding, specify nonrecurring values for the unique number.
While adding, if you specify an existing manager entry name, it modifies the
existing manager entry. Using non-sequential numbers results in automatic
reassignment of sequential numbers. While modifying a manager entry, you
can't change the name. The manager entry name does not have any
significance, other than to uniquely identify an entry.
Manager IP
address
Lets users specify the IP Address of the SNMP Manager station
corresponding to this entry. If no manager entries are created, the Enterprise
Edge device accepts SNMP requests from all stations. If there is a list of
manager entries, Enterprise Edge server accepts SNMP requests from the IP
Addresses specified in the list.
Trap List
Lets users specify the entry name used to identify an individual trap
community entry on the SNMP agent. Its value must follow certain
conventions. It must have the prefix T followed by a unique number that
identifies the trap community entry on the agent. For example, T2 is a valid
value. While adding, specify non-recurring values for the unique number.
While adding, if you specify an existing trap community entry name, it
modifies the existing trap community entry. Using non-sequential numbers
results in automatic reassignment of sequential numbers. While modifying a
trap community entry, you can't change the name. The trap community entry
name does not have any significance, other than to uniquely identify an entry.
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To modify the configuration of the Community List, Manager List, and Trap
Community List:
To add to the community list:
1. On the menu, click Configuration and then click Add Community.
The Community List dialog box appears.
2. Click the Community List box type the community list.
3. Click the Community Name box type the community name.
4. Scroll to view the Access Permission settings.
5. From the Access Permission the list box select the Access Permission.
6. Click the Save button to return to Unified Manager.
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To modify a community:
1. Click a community in the Community table.
2. On the menu, click Configuration and then click Modify Community.The
Community List dialog box appears.
3. Click any box that requires modification and type the necessary changes.
4. Click the Save button to return to Unified Manager.
To delete a community:
1. Click on a community in the Community table.
2. On the menu, click Configuration and then click Delete Community.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
To add a manager:
1. On the menu, click Configuration and then click Add Manager.
The Manager List dialog box appears.
2. In the Manager List box type the manager list.
3. In the Manager IP Address box type the manager IP address.
4. Click the Save button to return to Unified Manager.
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To modify the manager list:
1. In the Manager table, click a manager.
2. On the menu, click Configuration and then click Modify Manager.
The Manager List dialog box appears.
3. Click any box that requires modification and type the necessary changes.
4. Click the Save button to return to Unified Manager.
To delete a manager:
1. In the Manager table, click the manager you want to delete.
2. On the menu, click Configuration and then click Delete Manager.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
To add a trap community:
1. On the menu, click Configuration and then click Add Trap Community.
The Trap Community List dialog box appears.
2. In the Trap List box type the trap list.
3. In the Community Name box type the community name.
4. Scroll to see the Manager IP Address box.
5. In the Manager IP Address box, type an IP Address for a manager station that
is a member of this trap community.
6. Click the Save button to return to Unified Manager.
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To modify a trap community:
1. In the Trap Community table, click the trap community you want to modify.
2. On the menu, click Configuration and then click Modify Trap Community.
The Trap Community List dialog box appears.
3. Click any box that requires modification and type the necessary changes.
4. Click the Save button to return to Unified Manager.
To delete a trap community:
1. In the Trap Community table, click the trap community you want to delete.
2. On the menu, click Configuration and then click Delete Trap Community.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
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QoS
To configure QoS services settings:
1. On the navigation tree click QoS.
Clicking the QoS navigation key expands the navigation tree but doesn’t
display the summary of configurable QoS services. You must click QoS.
The QoS Summary screen appears.
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The QoS Services Summary settings are:
Setting
Definition
Description
Shows the description of the QoS provider.
Version
Shows the driver version of the QoS provider.
Status
Lets users enable or disable the QoS module.
Premium
Bandwidth
Lets users specify, in percentages, the WAN bandwidth reserved for premium
traffics.
Choose a value for this field based on the link speed, the codecs used by VoIP
gateway, the sample rate and the number of concurrent phone calls (from
internal VoIP gateway) and other H.323 sessions (like Microsoft NetMeeting
traffic) you intend to carry over the WAN link. Refer to WAN overview on
page 37 for more information on this topic.
Make sure you allocate at least the bandwidth necessary to carry as many
phone calls as specified in 'Number of Phone Ports' field below. Otherwise,
the QoS provider sees the inconsistent configuration and disables itself when
system boots next time, resulting in broken connectivity.
Any additional bandwidth that is more than what is required to carry the
phone calls is available for other H.323 sessions like NetMeeting sessions
from PCs connected to Enterprise Edge box or other data traffic classified as
premium, through QoS Filters. This additional bandwidth reserved for
premium traffic is always available for other data traffic if there is no
additional H.323 traffic or other premium traffic.
A network administrator can reserve more WAN bandwidth than that required
to carry phone calls and then prevent PC users from using it for NetMeeting
sessions by setting filters that drop H.323 traffic at LAN interfaces.
Video Class
Lets users specify the type of priority treatment for video traffic in H223
sessions.
The following choices are available:
Premium: Video traffic is treated as premium traffic that consumes portions of
bandwidth reserved for premium traffic (Premium Bandwidth field).
Best Effort: Video traffic is treated as best effort IP traffic that are prioritized
among other best-effort traffic passing through the WAN link.
Premium DS
Code
Lets users specify the TOS field in the IP header for premium packets.
This value is used in conjunction with the frame relay driver in Enterprise
Edge's WAN link, if one is being used, as well as rest of the network.
If the frame relay is used on WAN link, this code should match the DS Code
field in frame relay settings so that frame relay network treats this traffic as
high-priority.
If rest of the network is diffserv capable, all routers that carry VoIP traffic
from theEnterprise Edge server must be configured to treat the traffic with this
DS code as high-priority or premium traffic.
Number of Phone Lets users specify the number of phone ports.
Ports
This value specifies the number of concurrent phone calls user intends to carry
over the WAN interface. QoS Provider layer uses this value to determine how
much of the bandwidth reserved for premium traffic is consumed by internal
VoIP gateway and how much is left over for other H.323 or other classified
premium traffic.
Filter Order
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Lets users specify the order that filters are evaluated. If a filter name is listed
in filter order, but the actual filter is missing, it is ignored. If an actual filter is
omitted from the filter order list, the filter is not effective.
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Setting
Definition
Filter
Lets users specify the entry name that is used as a key to uniquely identify an
individual filter entry in QoS layer. Its value must follow certain conventions.
It must have the prefix F followed by a unique number that identifies this
filter. For example, F2 is a valid value. While adding, specify non-recurring
values for the unique number.
While adding, if you specify an existing filter entry name, it modifies the
existing filter entry. Using non-sequential numbers results in automatic
reassignment of sequential numbers. While modifying a filter entry, you can't
change the name.
Source Address
Lets users specify the source IP address in a valid dot format.
If you want to ignore the source address field in filter, leave this field blank. If
you specify an address in this field, you should also specify a subnet mask in
the Source Mask field.
Source Mask
Lets users specify the source mask of the IP address in a valid dot format.
If you specify a source address, you must specify a source mask and vice
versa. Make sure that the mask and address match with each other, i.e. bitwise
and of mask and address is equal to the address.
If you want to specify a range of addresses, use a subnet mask other than
255.255.255.255. For example, address/mask combination 10.10.10.32/
255.255.255.252 represents addresses 10.10.10.32-10.10.10.35.
Destination
Address
Lets users specify a destination IP address in a valid dot format.
See the instructions for Source Address.
Destination Mask Lets users specify a mask for the destination IP address in a valid dot format.
See the instructions for Source Mask.
Source Port
Lets users specify a source port to match the filter.
Specify a source port only if you choose a TCP or a UDP protocol. If you
don't want to include the source port in your filter, select IGNORE for it.
Otherwise, select the port for one of the well-known services from the list or
type it in the list box. If you type the port, specify the service's numeric port
number. You can specify a range of ports by specifying the two limits of the
range by a hyphen character, for example, 156-159. You can also specify 0 for
the lower limit and 65536 for upper limit.
Destination Port
Lets users specify a destination port to match the filter. It is interpreted the
same way as source port.
Protocol
Lets users specify a protocol to match the filter.
If you don't want to include a protocol in your filter, select IGNORE for the
protocol. Otherwise, select the protocol from the list or type the numeric value
of sub-protocol under IP in the box.
PortRange
Lets users reserve and list different UDP port ranges that the Enterprise Edge
QoS module uses for VoIP RTP flows. Set the UDP ports to high priority so
that VoIP packets are forwarded quickly.
DSCode (TOS)
Criteria
Lets users specify the DS Code (TOS) value for the filter to match. Use this
setting only if your network or application behind Enterprise Edge is diffserve
capable or diffserve aware. Specify here the DS Code or TOS value that the
application or the other edge device puts in the IP packets it sends. Otherwise,
ignore this setting.
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Setting
Definition
Priority
Lets users specify the priority given to packets that match the criteria specified
in the filter. The priority value has significance only within the IP interface the
packet is related, and is relative to other packets that go out through the
interface. 0 is the highest priority and 8, the lowest priority.
Use caution when you assign priority. If you assign priority 0 for regular data
traffic, it is possible that the quality of voice calls that go through this
interface are degraded. Use priority 0 only if your WAN does not carry any
voice calls. As a guideline, always start assigning priorities from the lowest
level up.
Outbound DS
Code
Lets users specify the new DS Code added to the packets that match this filter.
If you don't want to change the DS Code in the packets going out through the
interface, don't specify any value for this setting.
If a value is specified, this setting lets Enterprise Edge change the DS code on
outgoing packets. This lets Enterprise Edge be used as a 'marker' device on the
edge of a diffserve capable network.
2. In the Description box type the description.
3. In the Version box type the version.
4. From the Status list box select enable or disable.
5. In the Premium Bandwidth box type the appropriate premium bandwidth.
6. From the Video Class list box select the video class.
7. In the Premium DS Code box type the premium DS code.
8. In the Number of Phone Ports box type the number of phone ports.
9. Press the Tab key to save the settings.
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QoS performance graphs and tables
To access QoS performance graphs and tables:
1. On the menu, click Performance and then click QoS Session Graph.
The QoS Performance Graph appears.
For information on using performance tables and graphs, refer to Graphs and tables
on page 154.
2. On the menu, click Performance and then click QoS Session Table.
The QoS Performance Table appears.
3. Access the remaining QoS graphs and QoS tables by following the steps for
QoS Session Graphs and Tables.
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QoS filters
To set the QoS filters:
1. Click the QoS navigation key to expand the navigation tree.
2. On the navigation tree, click Filters.
Clicking the Filters navigation key causes the key to disappear. You must
choose Filters. The Filters Configuration and Filters screen appears.
Accessing QoS Filters
3. In the Filter Configuration box type the filter configuration.
4. Press the Tab key to save the settings.
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To modify filters:
1. In the Filter table, click the filer you want to modify.
2. On the menu, click Configuration and then click Modify Filter.
The Filters dialog box appears.
3. Make changes to any setting that you want to modify.
4. Click the Save button to return to Unified Manager.
To add filters:
1. On the menu, click Configuration and then click Add Filter.
The Filters dialog box appears.
2. In the Filter box type the appropriate filter.
Type a name that looks like “Fxx” where “xx” is a unique integer in the filter
table.
3. In the Source Address box type the source address if it is required or leave
this box empty.
4. In the Source Mask box type the source mask.
If you specify a source address, you must specify a source mask.
5. In the Destination Address box type the destination address if it is required
or leave this box empty.
6. In the Destination Mask box type the destination mask or leave this box
empty.
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7. From the Source Port list box, if required, select the source port or select
ignore.
8. From the Destination Port list box select the destination port.
9. From the Protocol list box if required, select the protocol or click ignore to
ignore this field.
10. In the DSCode (TOS) Criteria box select a DS code in hex or leave this
setting blank.
11. From the Priority list box select the priority.
Use caution when selecting a priority. Lower values have precedence over
higher values. For priority 0, Enterprise Edge gives the same precedence as
voice traffic, possibly affecting the latter adversely.
12. In the Outbound DS Code (TOS) box type the outbound DS code.
13. Click the Save button to return to Unified Manager.
To delete filters:
1. On the Filter table, click the filter you want to delete.
2. On the menu, click Configuration and then click Delete Filter.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
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QoS Port Ranges
4. Click the QoS navigation key.
5. On the navigation tree, click PortRanges.
Clicking the Port Ranges navigation key causes the key to disappear. You
must click PortRanges.
The QoS PortRanges screen appears.
To modify port ranges:
1. In the Port Ranges table, click the port ranges you want to modify.
2. On the menu, click Configuration and then click Modify Port Ranges.
The Port Ranges dialog box appears.
3. In the Begin box.type the beginning value for the range.
This must be an even value.
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4. In the End box type the appropriate end value for the range.
5. Click the Save button to return to Unified Manager.
To add port ranges:
1. On the menu, click Configuration and then click Add Port Ranges.
The Port Ranges dialog box appears.
2. In the PortRange box type the port range.
Type an entry that looks like “Rxx” where “xx” is a unique integer.
3. In the Begin box type the beginning value for the range.
This must be an even value.
4. In the End box type the ending value for the range.
5. Click the Save button to return to Unified Manager.
Note: If the rest of your network is not diffserv capable, you can set filters in
other routers to give higher priority to VoIP traffic. In all the routers
that carry VoIP traffic from the Enterprise Edge server, you must set
filters that classify the traffic to and from these port ranges as highpriority.
To delete port ranges:
1. In the Port Ranges table, click the port ranges you want to delete.
2. On the menu, click Configuration and then click Delete PortRange.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
4. Click the QoS navigation key to close the navigation tree.
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VoIP gateway
To configure VoIP gateway settings:
1. On the navigation tree, click VoIP Gateway.
Clicking the VoIP Gateway navigation key expands the navigation tree but
doesn’t display the summary of configurable VoIP Gateway services. You
must choose VoIP Gateway.
The VoIP Gateway Summary screen appears.
The VoIP Gateway settings are:
Setting
Definition
Description
Shows the description of the VoIP gateway.
Version
Shows the version of the VoIP gateway.
Status
Lets users enable, disable, pause, or continue the VoIP gateway service.
2. From the Status list box select enable or disable.
3. Press the Tab key to save the settings.
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VoIP local and remote gateways
To configure VoIP local and remote gateways:
1. On the navigation tree click the VoIP Gateway navigation key to expand the
navigation tree.
2. On the navigation tree click Local Gateway.
Clicking the Local Gateway navigation key causes the key to disappear. You
must click Local Gateway.
The VoIP Local Gateway settings are:
Setting
Definition
Preferred Codecs Lets users specify the local VoIP gateway used to convert voice to data
packets and vice versa. These parameters are always negotiated during call
setup with the other VoIP gateway involved in the call. Codecs are negotiated
in the order of preference specified here. Refer to the VoIP Gateway User
Guide for a discussion on these values.
Echo
Cancellation
Lets users enable or disable the Echo Cancellation feature in the VoIP calls.
Non-Linear
Processing
Lets users enable or disable non-linear processing.
Silence
Compression
Lets users enable or disable silence compression.
Fallback to
Circuit Switched
Lets users enable or disable fallback to the circuit switched network (PSTN).
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Setting
Definition
Voice Jitter
Buffer
Lets users specify the voice jitter buffer size in the range of 20-200. The
default setting is 50.
Fax Jitter Buffer
Lets users specify the FAX jitter buffer size in the range of 20-200. The
default setting is 50.
Local Gateway
IP
Lets users specify the local VoIP gateway to be used as its IP Address while
interacting with other VoIP gateways. Since the Enterprise Edge server
typically has more than one IP interfaces and more than one IP Address in it,
users must choose one that VoIP gateway uses. This address must match the
entry for this gateway in the remote gateway table of those VoIP gateways.
Ensure this address is reachable to the other gateways via IP.
3. From the 1st Preferred Codecs list box select the video class.
4. Configure the 2nd through 5th preferred codec selections.
5. From the Echo Cancellation list box enable or disable echo cancellation.
6. From the Non-Linear Processing list box enable or disable non-linear
processing.
7. From the Silence Compression list box enable or disable silence
compression.
8.
From the Fallback to Circuit-Switched list box to enable or disable fallback
to circuit-switched.
9. In the Voice Jitter Buffer box type the voice jitter buffer and press the Tab
key.
10. In the Fax Jitter Buffer box type the appropriate fax jitter buffer and press
the Tab key.
11. In the Local Gateway IP box type the local gateway IP address and press the
Tab key.
12. Press the Tab key save the settings.
To modify VoIP Gateway Remote Gateway Entry services:
1. On the navigation tree, click Remote Gateway.
Clicking the Remote Gateway navigation key causes the key to disappear.
You must click Remote Gateway.
The VoIP Remote Gateway screen appears.
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1. In the Remote Gateway table, click the remote gateway you want to
configure.
2. On the menu, click Configuration and then click Modify Entry.
The Remote Gateway dialog box appears.
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The VoIP Remote Gateway settings are:
Setting
Definition
Name
Lets users specify a logical name for the remote VoIP gateway. This setting is
editable only when adding a new gateway entry. While modifying an existing
entry, this name can not be changed.
Destination IP
Lets users specify IP Address for the remote VoIP gateway. Fully qualified
DNS Name or just host name (where applicable) or IP address in dotted format
may be entered here.
QoS Monitor
Lets users enable or disable QoS Monitor for this VoIP gateway.
Transmit
Threshold
Lets users specify the transmit threshold that is used while interacting with this
VoIP gateway.
Receive
Threshold
Lets users specify the receive threshold that is used while interacting with this
VoIP gateway.
Gateway Type
Lets users specify the VoIP gateway type. VoiceNet is the only permitted value
in Release 1.0.
Destination
Digits
Lets users specify the destination digits for this gateway. When the local
gateway sees this prefix, it forwards the call to the VoIP gateway at the
specified destination IP Address.
3. In the Destination IP box type the destination IP address and press the Tab
key.
4. From the Qos Monitor list box enable or disable the QoS.
5. In the Transmit Threshold box type the transmit threshold and press the Tab
key.
6. In the Receive Threshold box type the appropriate receive threshold.
7. In the Destination Digits box type the destination digits and press the Tab
key.
8. Click the Save button to return to Unified Manager.
To add user profiles:
1. On the menu, click Configuration and then click Add Entry.
The User Profile dialog box appears.
2. In the Name box type the user name.
3. In the Destination IP box type the destination IP address.
4. From the Qos Monitor list box enable or disable the QoS monitor.
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5. In the Transmit Threshold box type the transmit threshold and press the Tab
key.
6. In the Receive Threshold box type the receive threshold.
7. In the Destination Digits box type the destination digits.
8. Click the Save button to return to Unified Manager.
To delete remote gateways:
1. In the Remote Gateway table click the remote gateway you want to delete.
2. On the menu, click Configuration and then click Delete Entry.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
4. Click the VoIP Gateway navigation key to close the navigation tree.
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QoS monitor
To set the QoS monitor:
1. On the navigation tree, click QoS Monitor.
Clicking the QoS Monitor navigation key expands the navigation tree doesn’t
display the summary of configurable QoS monitor services. You must click
QoS Monitor.
The QoS Monitor Summary screen appears.
The QoS Monitor settings are:
Setting
Definition
Description
Shows the description of the service monitor.
Version
Shows the version of the service monitor.
Status
Lets users enable or disable the service monitor.
2. From the Status list box select enable or disable.
3. Press the Tab key to save the settings.
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QoS Monitor Mean Opinion Score
To view the QoS Monitor Mean Opinion Score:
1. Click the Qos Monitor navigation key.
2. On the navigation tree, click Mean Opinion Score.
Clicking the Mean Opinion Score navigation key causes the key to disappear.
You must click Mean Opinion Score.
If you configure or create remote gateways by clicking the Voice Net Remote
Gateway navigation key, the mean opinion scores of the connections to these
remote gateways, which are a measure of quality of the voice link, while using
IP trunk, for each codec type are displayed in the screen. Each configured
gateway appears on a separate row.
Each row consists of the fields for the name of the remote gateway, its IP
address, the status of the QoS monitoring for the connection, and the mean
opinion scores for each allowed voice codec types and for each direction.
If the QoS Monitor setting for the remote gateway entry is Disabled the MOS
value for the remote gateway is N/A. Also, if the QoS Monitor service is
disabled or down for any reason, all MOS values are N/A.
While MOS values are being shown, they are updated approximately every 50
seconds. To refresh the data, on the menu click View and then click Refresh.
3. Click the QoS Monitor navigation key to close the navigation tree.
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Web cache
To configure the web cache settings:
1. On the navigation tree, click Web Cache.
The Web Cache Summary screen appears.
The web cache settings are:
Setting
Definition
Description
Shows the description of the Web Cache server.
Version
Shows the version of the Web Cache server.
Status
Shows the status of the Web Cache server.
This setting is read-only. The server always runs r to provide support for
web-based UIs for Enterprise Edge.
Server Address
Lets users tell the web server what IP address to use for interacting with
HTTP clients. Since Enterprise Edge server typically has more than one IP
interface and associated IP Address, users can choose this value. This value
is automatically set to the IP Address of the first LAN interface and changes
when the latter changes. Exercise caution if modifying this value
Cache Mode
Lets users enable or disable the cache-mode of operation.
Cache Size
Lets users specify the maximum size, in KB, of the cache.
Garbage Collection Lets users specify the interval, in hours, between garbage collection
Interval
operations on the cache.
Cache Maximum
Life
Lets users specify the maximum life on the proxy server for the HTTP pages
cached in it.
Maximum Server
Threads
Lets users specify the number of threads ready to serve HTTP requests in the
proxy server.
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2. In the Server Address box type the server address.
This setting is automatically set to the LAN interface IP address. Use caution
when changing.
3. From the Cache Mode list box select enable or disable.
4. In the Cache Size box type the cache size in KB.
5. In the Garbage Collection Interval box type the interval in hours.
6. In the Cache Maximum Life box type the cache maximum in hours.
7. In the Maximum Server Threads box type the number of threads.
8. Press the Tab key to save the settings.
NetLink Manager
To configure NetLink Manager settings:
1. On the navigation tree click NetLink Manager.
The NetLink Manager Summary screen appears.
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The NetLink summary settings are:
Setting
Definition
Description
Shows a description of the Net Link Manager.
Version
Shows the version number of the subsystem.
Status
Shows the status of the Net Link Manager. The Net Link Manager is always
running and cannot be disabled by the user.
Next Hop on
Primary Link
Lets users specify the IP address in a valid dot format of the next hop router
which is typically the remote router of the primary WAN data link.
Up Poll Interval
Lets users set the polling interval, in seconds, while the primary WAN data
link is operational.
Down Poll
Interval
Lets users set the polling interval, in seconds, while the primary WAN data
link is down, and the dialup data link is operational.
Switch Over
Delay
Lets users specify the interval, in seconds, that Net Link Manager waits for
before switching the network link after it notices that the primary WAN link
has come up again. This delay lets the router on the other end of the primary
link recognize that the link has come up and adjust routing table accordingly.
Typically this is set to the RIP Route Announcement Interval of 30 seconds.
2. From the Status list box select enable or disable.
3. In the Next Hop on Primary Link box type the “next hop.”
This address is used by NetLink Manager to add a default route in the
Enterprise Edge server. If this address is unreachable, NetLink Manager dials
the backup link and changes the default route.
4. In the Up Poll Interval box type the up poll interval in seconds.
The up poll interval is the interval between successive pings when the next
hop in primary link is available. Use a relatively larger value to save
bandwidth.
5. In the Down Poll Interval box type the down poll interval in seconds.
The down poll interval is used to ping the next hop on primary link when it is
recognized as unreachable. Use a smaller interval for faster recovery.
6. In the Switch Over Delay box type the switch over delay in seconds.
7. Press the Tab key to save the settings.
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Voice Record
To configure Voice Record settings:
1. On the navigation tree click Voice Record.
Clicking the Voice Record navigation key expands the navigation tree but
doesn’t display the read only summary. You must click Voice Record.
The read only Voice Record Summary screen appears.
The Voice Record read-only settings are:
Setting
Definition
Name
Shows the component name, which is CDR.
Status
Shows the status of the component.
Version
Shows the version of the component.
Description
Shows a description of the component.
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Voice Record report settings
To configure the Voice Record report settings:
1. On the navigation tree, click the Voice Record navigation key to expand the
navigation tree.
2. On the Report Parameters from the navigation tree.
Clicking the Report Parameters navigation key causes the key to disappear.
You must choose Report Parameters.
The Report Parameters screen appears.
The Voice Record report settings are:
Setting
Definition
Format
Lets user specify the record format from:
SL-1
Norstar
The default format is SL-1.
Report Type
Lets users select the report type from:
Standard: Standard call information only
CLID: Standard call information with CLID records
Real time: Report real time call information for incoming calls only (available
only when Norstar format is selected)
All: Report standard call information with CLID records and real time call
information (available only when Norstar format is selected)
The default report type is Standard.
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Language
Lets users select the language from:
English
French
The default language is English
Report Filter
Lets users select the report filter type from:
Outgoing: Report only outgoing calls. Incoming calls are not reported.
Account Code: Reports only calls with account code stamped.
Prefix: Report only calls with digits matched that long distance code in the
prefix table.
All: Reports all calls
The default report filter is All.
Feature Code F9
Lets users specify the Feature Code F9 setting.
3. From the Format list box select the format.
4. From the Report Type list box select the report type.
5. Click the Language list box select the language.
6. From the Report Filter list box select the report filter.
7. From the Feature Code F9 box select the feature code.
8. Press the Tab key to save the settings.
To configure commit and clip files:
1. On the menu, click Configuration and then click Commit.
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Voice Record report options
To set Voice Record report options:
1. On the navigation tree, click Report Options.
Clicking the Report Options navigation key causes the key to disappear. You
must click Report Options.
The Report Options screen appears.
The Voice Record report options are:
Setting
Definition
Date Format
Lets users specify the date format on voice mails recorded from:
MM/DD/YY
DD/MM/YY
YY/MM/DD
The default date format is MM/DD/YY.
Header Format
Lets users specify the header format for the recorded messages from:
Line/Station: always reports the Line number first followed by the station
number.
Source/Destination: reports the source of the call followed by the destination
of call. Incoming calls are reported in Line/Station format. Outgoing calls are
reported in Station/Line format.
The default header format is Line/Station format.
This parameter affects only the Norstar record format.
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DNIS Info
Lets users enable and disable reporting Dialed Number Information Service
(DNIS) digits.
The default DNIS Info is Enabled
This parameter affects only the Norstar record format. Not all trunks support
DNIS.
Connect Char
Lets users enable and disable inserting “!” between digits dialed and after the
call is connected.
The default connect char is Disabled.
2. From the Date Format list box select a date format.
3. From the Header Format list box select a header format.
4. From the DNIS Info list box select enable or disable.
5. From the Connection Character list box select a connection character.
6. Press the Tab key to save the settings.
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Voice Record market parameters
To set the Voice Record market parameters:
1. On the navigation tree, click Market Parameters.
Clicking the Market Parameters navigation key causes the key to disappear.
You must click Market Parameters.
The Voice Record Market Parameters (report options) screen appears.
The Voice Record market parameters are:
Setting
Definition
NameCLID
Lets users enable and disable reporting the CLID Name of the call.
This parameter affects only the Norstar record format. Not all trunks support
CLID Name.
The default NameCLID is Enabled.
LongCLID
Lets users enable and disable supporting the long CLID digit reporting.
This parameter is very market specific. Do not change the default unless the
trunk supports this feature.
The default Long CLID is Disabled.
Call Type
Lets users enable and disable reporting the call type (Long distant or
Unknown).
This parameter affects only the Norstar record format. Do not change the
default unless the trunk supports this feature.
The default call type is Enabled.
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Call Charge
Lets users enable and disable supporting the call charge reporting.
This parameter is very market specific. Do not change the default unless the
trunk supports this feature.
The default call charge is Disabled.
Ans Supervision
Lets users enable and disable using Answer Supervision to identify far-end
answered outgoing calls.
This parameter is very market specific. Do not change the default unless the
trunk supports this feature.
The default ans supervision is Disabled.
2. From the NameCLID list box enable or disable Name CLID.
3. In the LongCLID list box enable or disable Long CLID.
4. From the Call Type list box enable or disable call type.
5. From the Call Charge list box enable or disable call charge.
6. From the Answer Supervision list box enable or disable answer supervision.
7. Press the Tab key to save the settings.
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Voice Record PreFix
The prefix setting lets users enter the long distance call prefixes in conjunction with
the report filter option.
To set the Voice Record PreFix:
1. On the navigation tree, click PreFix Setting.
Clicking the PreFix Setting navigation key causes the key to disappear. You
must click PreFix Setting.
The PreFix Setting screen appears.
2. In the PreFix Setting boxes type the appropriate prefixes.
3. Press the Tab key to save the settings.
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Voice Record Access/Suppress
To configure Voice Record Access/Suppress settings:
1. On the navigation tree, click the Voice Record navigation key.
2. On the navigation tree, click Access Setting.
Clicking the Access Setting navigation key causes the key to disappear. You
must click Access Setting.
The Access Setting screen appears.
The Voice Record prefix settings are:
Setting
Definition
Access Setting
Lets users enter the secondary call provider call prefix digits.
Suppress Setting
Lets users enter the length of personal identification digits to suppress.
3. In the Access and Suppress (access) boxes type the appropriate access or
suppress settings.
4. Press the Tab key save the settings.
5. Click the Voice Record navigation key to close the navigation tree.
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TAPI Service Provider
To configure TAPI Service Provider settings:
1. On the navigation tree, click TAPI Service Provider.
Clicking the TAPI Service Provider navigation key causes the key to
disappear, but doesn’t show the read only settings. You must click TAPI
Service Provider.
TAPI Service Provider Settings and configurable Station List screen appears.
TAPI Service Provider settings are read-only.
The TAPI Service Provider settings are:
Setting
Definition
Status
Shows the current status of the TSP (telephony service provider) as reported
by the TSP software.
The possible values are:
Unknown
In Service
Not In Service
Initializing
In KSU Admin
These strings are presented in English, French, or Spanish, depending on the
software settings.
The default value is Unknown and the typical value is In Service.
Description
Shows the description of TSP.
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Setting
Definition
Version
Shows the TSP version.
Station Licenses
Shows the number of sets that are licensed to be controlled through the TSP.
This is a numeric value or the text string Unlimited or Maximum.
The station licenses can not be modified on this page but are changed by
adding a keycode through the Software Keys page. The string Unlimited is
presented in English, French, or Spanish.
The default value is 2.
Station
Lets users add an internal phone number on the Enterprise Edge system. Users
can add as many entries as there are licenses have been granted.
The default is no entries in the Station List. List elements are added and
deleted through the Configuration menu items.
2. On the menu click Configuration and then click Add Station to List.
The Station List dialog box appears.
To add a station:
1. In the station box type the station information.
2. Click the Save button to return to Unified Manager.
To delete a station:
1. On the menu click Configuration and then click Remove Station from List.
A message appears that asks you to confirm the deletion.
2. Click the Yes button to confirm the deletion and return to Unified Manager.
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Voice Service
To configure Voice Service settings:
1. On the navigation tree click Voice Service.
Clicking the Voice Service navigation key causes the key to disappear, but
doesn’t display the configurable summary. You must click Voice Service.
The Voice Service VoiceMail, Stations, and Logging screen appears.
The Voice Service settings are:
Setting
Definition
VM Extension
Lets users specify the default voice mail extension for the system. Specify an
extension number for the voice mail system.
Rediscover on
next restart
Lets users specify whether the system tries to communicate with all possible
destination numbers to check for their status. Exercise caution before enabling
this option as it can take up to 30 minutes to complete.
Level
Lets users specify the debug level. Any value between 0 and 20 is acceptable.
The typical setting is 5.
To file
Lets users enable logging to the file. It enabled, it creates a file called
ConsoleService.log on the file system.
Lets users enable events, including various types of events in the log file
CP Events
generated.
Device Events
Response Events
Session Events
System Events
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2. In the VM Extension box type the VM extension.
3. From the Rediscover on next restart list box select the answer.
4. In the Level box type the level.
5. From the To File list box select the answer.
6. From the CP Events On list box select the answer.
7. From the Device Events On list box select the answer.
8. From the Response Events On list box select the answer.
9. From the Session Events On list box select the answer.
10. From the System Events On list box select the answer.
11. Press the Tab key to save the settings.
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Alarm Service
To configure Alarm Service settings:
1. On the navigation tree click Alarm Service.If you click Alarm Service the
navigation key disappears. You must click Alarm Service.
The Alarm Service Summary screen appears.
The Alarm Service summary settings are:
Setting
Definition
Descriptions
Shows a description of the alarm service.
Version
Shows the version of the alarm service.
Status
Lets users enable or disable the alarm service.
2. From the Status list box enable or disable alarm service.
3. Press the Tab key to save the settings.
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Voice Mail
To configure Voice Mail services settings:
1. On the navigation tree click Voice Mail.
Clicking the Voice Mail navigation key causes the key to disappear. You must
choose Voice Mail.
The Voice Mail Summary screen appears.
The Voice Mail settings are:
Setting
Definition
Name
Shows the name of the component.
Status
Shows the status of the voice mail service.
Version
Shows the version of the voice mail service.
Description
Shows the description of the voice mail service.
2. Click the Services navigation key to close the navigation tree.
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Configuring Management Settings
7
Configuring Management Settings
When Enterprise Edge ships, the following user IDs are available:
•
Manager: administrator user
•
User: read-only user
•
supervisor: administrator user
Note: After installation change the password for all administrator users or
delete them after creating your own administrator users.
To configure management settings:
1. On the menu click Group and then click Management or Comprehensive.
2. On the navigation tree click the Enterprise Edge key and then click the
Management key.
User Manager
To configure User Manager:
1. On the navigation tree click User Manager.
Clicking the User Manager navigation key expands the navigation tree but
doesn’t display the User Manager management services. You must click User
Manager. The User Manager User Profile screen appears.
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The User Manager settings are:
Setting
Definition
User Name
Lets users specify the user name while adding a new user. While modifying
existing user profile, this field is read-only. The value in this setting is case
sensitive and cannot exceed 50 characters in length.
Password
Lets users specify the password for the user. The value in this setting is case
sensitive and cannot exceed 15 characters in length.
Confirmed
Password
Lets users confirm the modified password. The value in this setting must
match the value in the Password setting.
Privilege
Lets users specify what privileges this user has in administering the Enterprise
Edge server from:
READ-ONLY: Lets users view settings, but not alter them.
READ-WRITE: Lets users view and change settings.
To modify user profiles:
1. In the User Profile table, click the user profile you want to modify.
2. On the menu click Configuration and then click Modify User.
The User Profile dialog box appears.
3. In the User Name box type the user name.
4. In the Password box type the password.
5. In the Confirmed Password box retype the password.
6. From the Privilege list box select the appropriate user privilege.
7. Click the Save button to return to Unified Manager.
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To add user profiles:
1. In the User Profile table click the line you want to configure.
2. On the menu click Configuration and then click Add User.
The User Profile dialog box appears.
3. In the Password box type the password.
4. In the Confirmed Password box type the password.
5. From the Privilege list box.select the appropriate user privilege.
6. Click the Save button to return to Unified Manager.
Note: Maintain only one user ID with administrative privileges with a few
people allowed to use it. Multiple users logging on to Enterprise Edge
from different client stations through the administrator account can
causes inconsistent or wrong configuration. There is no security within
Enterprise Edge to prevent it.
To delete user profiles:
1. In the User Profile table click the profile you want to delete.
2. On the menu click Configuration and then click Delete User.
A message appears that asks you to confirm the deletion.
3. Click the Yes button to confirm the deletion and return to Unified Manager.
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Alarm Manager
To configure alarm manager settings:
1. On the navigation tree click Alarm Manager.
Clicking the Alarm Manager navigation key makes it disappear. You must
click Alarm Manager.
The screen displays Alarm Manager alarm database settings.
The Alarm Manager settings are:
Setting
Definition
Max Number
Received
Shows the maximum number of records shown in the alarm database.
Discard Time
Shows the discard time, in seconds, for alarms. If the same alarm happens in this
interval, it is discarded.
Kept Time
Shows the kept time, in days. An alarm is kept for this interval in the discard
time database.
Resync Time
Shows the resync time, in seconds. Alarm service re-synchronizes with the
event log at this interval. A value of 0 disables resynchronization.
Traps Enabled
Lets users enable or disable sending SNMP traps when a new event arrives to
the event log.
Event Info
Enabled
Lets users enable or disable sending SNMP traps for the events of 'Information'
category.
Event Warning
Enabled
Lets users enable or disable sending SNMP traps for the events of Warning
category.
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Setting
Definition
Event Error
Enabled
Lets users enable or disable sending SNMP traps for the events of Error
category.
ScrExclusion
List
Lets users specify a comma-separated list of event sources whose events are not
reported as SNMP traps. Depending upon the network and user environment, a
component in Enterprise Edge may generate events of no significance to you at
regular events. Adding that event's source name here prevents it from generating
SNMP traps.
2. In the Resync Time box type the resync time.
3. From the Traps Enabled list box select yes or no.
4. From the EventsInfoEnabled list box select yes or no.
5. From the EventWarningsEnabled list box select yes or no.
6. From the EventErrorEnabled list box select yes or no.
7. In the SrcExclusionList box type the information.
8. Press the Tab key to save the settings.
9. Click the Management navigation key to close the navigation tree.
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Diagnostics and Utilities
8
This chapter includes information Enterprise Edge diagnostics and utilities
including:
•
Uploading System Settings
•
Downloading System Settings
•
Enterprise Edge Performance Utility
•
Error Messages
•
MIB II Information
Saving System Settings
Enterprise Edge allows you to save the customized system settings for:
•
Archival and backup purposes
•
Downloading system settings to multiple Enterprise Edge units
For example, you can use the download or upload feature to configure several
Enterprise Edge servers by downloading definitions and uploading them onto new
machines. This method of uploading definitions saves configuration time and can
be used for archival and backup purposes.
Note: The upload feature is not supported in release 1.
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Downloading System Settings
To download files:
1. On the log on screen, click the Download button.
The download screen appears.
2. Select the underlined file and a download screens appears for the user to copy
the file from the Enterprise Edge server to the user machine.
The configuration files that you can download include the web user interface
configuration and the subsystem configuration.
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Graphs and tables
Enterprise Edge provides detailed performance information for the system and its
components. The statistics are shown in charts or tables. If a performance display is
active, it is automatically updated with real-time performance information in time
increments that you set.
Note: Generating statistics puts a significant workload on the Enterprise Edge
server CPU, connecting network, and web client. Exercise caution when
running statistics for long durations.
Generating Statistics
Enterprise Edge provides statistical information on Enterprise Edge throughput and
other performance-related information. The data is formatted in a chart or table
format.
To generate statistics:
1. Select the appropriate item in the navigation tree.
2. Select Performance from the menu and select the appropriate command to
display statistical information.z
3. The chart or table appears.
Statistical Chart
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The following is the same information in table format.
Statistical Table
Sample Rate
You can set the sample rate by selecting the buttons on the statistical display. The
polling intervals include 2, 5, 10, 30 and 60 seconds.
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Error Messages
Messages appear if there is a system or processing error. The messages include two
parts: the error string and the error number.
The error string includes the error description and the context of the error.
The error number is a three-part number that uniquely identifies the error. Be sure
to note the error number when communicating with TSC to resolve the problem.
User Actions
Some Enterprise Edge errors are caused by a wrong parameter value. For these
errors, the recommended action resolves the problem. Other possible errors are
caused by an internal transition of states that puts the system and the user in an error
condition. In this event, assistance from TSC is required to resolve the problem.
Note: Any Enterprise Edge errors that are not listed in this manual are advanced
and require assistance from TSC for resolution.
Errors List
In the following list, in cases where multiple errors can happen in a particular
context, a wild-card representation is used.
Error
Number
Description
Action
2.5.4
This is an invalid data error. There was
an error in setting system date.
Reason: The date, month or year
component contains a zero or negative
value.
Provide the correct date value.
2.xx.4
These are various errors related to an
error in setting system date
Reason: The system rejected the date for
various reasons. The reasons could be
that it is beyond the range of dates
supported. For example, 01/01/0001 is
invalid date
2.5.6
This is an invalid data error. There was
an error in setting system time.
Reason: The hour or minute component
contains a negative value.
Provide the correct date value.
2.xx.6
These are various errors related to an
error in setting system time
Correct the error in the time format.
2.5.8
This is an invalid data error. There was
an error in setting system name.
Reason: The system name does not
follow the standard conventions.
Make sure that your system name does
not contain any special characters in the
name (hyphens are allowed, in addition
to letters and digits), and that it does not
exceed 15 characters in length.
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5.4.59
This is an invalid configuration error.
There was an error getting or setting
DHCP parameters.
Reason: You were adding an IP Address
Range and/or Excluded Address Range
and the first field you entered had a
wrong key value. In the dialog boxes that
appear to add the entries, the first field is
a key that should match certain naming
conventions. The conventions are given
the label to those fields.
Follow the conventions given on the
dialog boxes. For IP Address Ranges,
use keys like ’Rxx’ and for Excluded
Address Ranges, use keys like ’Exx’
5.5.39
This is an invalid data value. There are
invalid values for the new excluded
address range.
Reason: The IP Address values specified
for the range are not correct. At present,
each component in IP address specified
in dotted format should be in the range 0255, not including the boundary values.
Fix the value. If your IP Address range
contains more than 255 addresses in it
and you need to exclude a range that
ends with 255 or starts with. 0, use the
next upper or lower value to avoid
specifying this value.
5.5.40
Enter the missing value and click ’Save’
This is an invalid data value. There are
again
missing values in the new excluded
address range.
Reason: Data for each excluded address
entry should include two values - one for
the start and the other for end. This error
happens if one of them is missing.
5.5.41
This is an invalid data value. The new
excluded address range is not completely
within an IP Address range.
Reason: Excluded Address ranges should
be completely contained within a single
IP Address range specified for the scope.
If a DHCP scope contains more than one
IP Address range, then the excluded
address ranges specified, if any, may not
span outside a single IP Address range in
any way. This includes overhanging
outside of a single IP Address Range or
spanning over multiple IP Address
Range.
Fix the over-hanging problem. If
required, specify multiple excluded
address range.
Note: As a guideline, use only one IP
Address range, and specify multiple
excluded ranges to exclude disjoint parts
of it.
5.5.45
This is an invalid data value. The new
range overlaps with an existing range
Reason: This error happens if the
specified excluded range overlaps with
another excluded address range or with
an address that is already assigned to a
DHCP Client computer.
Modify the new excluded address range
so that it does not overlap with another or
does not include assigned IP addresses.
You may also go to the client system that
go the assigned address and release IP
address before setting the excluded
range.
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5.16.68
This is an invalid operation. You can’t
delete the last IP Address range in the
scope.
Reason: The scope contains only one IP
Address range and you are attempting to
delete it. You must have at least one IP
Address range in the scope all the time.
You may modify the last entry, however.
Don’t delete the last DHCP range. If you
need to change it, modify it. If you don’t
want the DHCP scope to be operational,
change its status to ’Disabled’. If don’t
want any scope operational, set the status
of the DHCP Service to ’Disabled’.
8.4.2.
This is an invalid configuration
parameter. There was an error in setting
data.
Reason: You tried to add a port range or
filter and the key field didn’t contain the
characteristic prefix.
If you are adding a new port-range, make
sure the ’PortRange (R#)’ field is like
’Rxx’ where ’xx’ is a number. If you are
adding a new filter, make sure that ’Filter
(F#)’ field looks like ’Fxx’ where ’xx’ is
a number.
8.5.3
This is an invalid data value. There was
an error in setting port range
Reason: You are setting a port range
value and the upper and lower limits are
not correct or missing.
Each range should begin with a positive
even number and must end with a
number greater than the beginning
number and must be an odd number.
Further, the range values should be less
than 65535 (64K)
8.8.3
This is an error in data size. There was an
error in setting port range.
Reason: You are setting a port range that
is too big. At present, only 256 ports can
be set in the port-range table.
Consult chapter 3 for a discussion on
port ranges in QoS. You may not need
that big a range. Reduce it to be under
256 ports in the range.
9.4.2
Use appropriate key strings in the dialog
This is an invalid configuration
parameter. There was an error in setting boxes, as suggested in their labels.
data.
Reason: This error can happen when you
are setting a community string entry,
manager entry or a trap community
entry. Each entry uses a characteristic
key string as its field name. Use ’Cxx’
for community strings, ’Mxx’ for
manager entries and ’Txx’ for trap
community entries.
9.6.4
9.6.5
9.6.6
The object was not found. There was an Specify correct number for the key field
name.
error in setting <object Name>
Reason: This error can happen while
setting a community string entry,
manager address or trap community
entry. Each entry takes a characteristic
key field as the first field that should
follow certain conventions, and a unique
number within the class. If that unique
number is 0 or less, this error happens.
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10.5.2
This is an invalid data value for
requested data.
Reason: This can happen happens when
user enters values into a dialog box and
clicks ’Save’ on it. If any of the fields
had some strict format specified for it
(say dotted format for an IP address) and
if you entered a wrong value, it would
beep when you tab out of the field. If you
ignored that beep, the GUI would reject
the field and when you clicked ’Save’ it
didn’t send the field to the Enterprise
Edge system, there by causing this
problem.
Follow the rules precisely and pay
particular attention to ’beeps.’ If your IP
Address has only 1 digit, prefix them
with 0s in order to make them 3-digit in
each segments of the dotted notation.
If the screen has a scroll bar, scroll and
enter all the necessary values.
11.5.2
This is an invalid data value for
password.
Reason: The user was changing a user
profile and the password entered in
’password’ and ’confirm password’
fields do not match.
Match the passwords.
11.19.9
Add another user with read-write
Failed to Delete. Required at least one
privilege before deleting the concerned
user with read-write privilege.
Reason: You are attempting to delete the user id.
last existing user with READ-WRITE
privilege. This operation is not
permitted, as it would not allow you to
make any other changes to user
configuration or other system
configuration.
11.12.10
Failed to Update. Required at least one
user with read-write privilege.
Reason: You are attempting to modify
the last existing user with READWRITE privilege. At this time, no
modifications are permitted to the last
READ-WRITE user.
14.4.21
Make sure your key names are as per
Invalid Configuration Parameter. Error
convention and provide unique values
in setting interface parameter
for the number component.
Reason: You’re setting a static route,
input filter or output filter under an
interface and you didn’t enter a correct
characteristic key field in the dialog box.
Values for these fields should strictly
follow the convention provided in the
labels for them. It should be something
like ’SRxx’ for static routes, ’IFxx’ for
input filters and ’OFxx’ for output filters.
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Add another user with READ-WRITE
privilege before modifying the concerned
user id.
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160 Diagnostics and Utilities
14.17.40
14.17.41
Command failed. Error in setting action
for input/output filters
Reason: You were attempting to set the
action for input/output filters on the
interface. The operation failed because,
there were no input or output filters
defined for the interface.
Add an input or output filter before
setting the action
14.17.68
Command failed. Error is setting static
route. This problem is caused by a
mismatch in destination network address
in its subnet mask specified in the route.
Match them. Bitwise ’AND’ of
destination address and subnet mask
should be equal to the destination
address.
The routing protocol is changed and the
screen didn’t update.
Refresh the screen by clicking on ’View
Refresh’ menu item.
Set the routing protocol back to ’NONE’
The routing protocol for the interface
and then set to ’RIP’ again. The RIP
shows up as ’RIP’. But no RIP
configuration parameters show up on the configuration field would show up.
screen
14.5.77
Invalid Data Value. Static default route is None
not permitted in this version. Reason:
You were setting a static route that was a
default route for the system. In this
release of Enterprise Edge, setting
default routes as static routes is not
permitted. The default route is managed
by the ’Net Link Manager’ component
that accepts the address of next hop
router on the primary and then adds or
deletes (manages) the default route in the
system.
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MIB II Information
Here is the mapping between Enterprise Edge counters shown in statistics windows
and standard MIB-II variables where applicable.
This section includes:
•
Counters shown at LAN and WAN interface levels:
•
ICMP Counters
•
UDP Counters
•
QoS Session Counters
•
QoS Best Effort Traffic Counters
•
QoS Dropped Packets Counter
•
QoS Graph Counters
•
QoS Best Effort Queue Counters
Counters Shown at LAN and WAN Interface Levels
1. Byte Received:
ifInOctets
2. Byte Sent:
ifOutOctets
3. Byte Total:
no equivalent (ifInOctets and ifOutOctets)
4. Current Bandwidth:
ifSpeed
5. Output Queue Length:
ifOutQLen
6. Packets Outbound Discarded:
ifOutDiscards
7. Packets Outbound Errors:
ifOutErrors
8. Packets Received Discarded:
ifInDiscards
9. Packets Received Errors:
ifInErrors
10. Packets Received Non-Unicast: ifInNUcastPkts
11. Packets Received Unicast:
ifInUcastPkts
12. Packets Received Unknown:
ifInUnknownProtos
13. Packets Received:
no equivalent
14. Packets Sent Non-Unicast:
ifOutNUcastPkts
15. Packets Sent Unicast:
ifOutUcastPkts
16. Packets Sent:
no equivalent
17. Packets:
no equivalent
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ICMP Counters
Note: Shown under Performance Menu under 'Resources':
1. Messages Outbound Errors:
icmpOutErrors
2. Messages Received Errors:
icmpInErrors
3. Messages Received:
icmpInMsgs
4. Messages Sent:
icmpOutMsgs
5. Messages:
no equivalent (icmpInMsgs + icmpOutMsgs)
6. Received Address Mask:
icmpInAddrMasks
7. Received Address Mask Reply:
icmpInAddrMaskReps
8. Received Destination Unreachable:icmpInDestUnreachs
9. Received Echo Reply:
icmpInEchoReps
10. Received Echo:
icmpInEchos
11. Received Parameter Problem:
icmpInParmProbs
12. Received Redirect:
icmpInRedirects
13. Received Source Quench:
icmpInSrcQuenchs
14. Received Time Exceeded:
icmpInTimeExcds
15. Received Timestamp Reply:
icmpInTimestampReps
16. Received Timestamp:
icmpInTimestamps
17. Sent Address Mask:
icmpOutAddrMasks
18. Sent Address Mask Reply:
icmpOutAddrMaskReps
19. Sent Destination Unreachable:
icmpOutDestUnreachs
20. Sent Echo Reply:
icmpOutEchoReps
21. Sent Echo:
icmpOutEchos
22. Sent Parameter Problem:
icmpOutParmProbs
23. Sent Redirect:
icmpOutRedirects
24. Sent Source Quench:
icmpOutSrcQuenchs
25. Sent Time Exceeded:
icmpOutTimeExcds
26. Sent Timestamp Reply:
icmpOutTimestampReps
27. Sent Timestamp:
icmpOutTimestamps
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UDP Counters
1. Datagrams No Port:
udpNoPorts
2. Datagrams Received Errors:
udpInErrors
3. Datagrams Received:
udpInDatagrams
4. Datagrams Sent:
udpOutDatagrams
5. Datagrams:
no equivalent (udpInDatagrams +
udpOutDataGrams)
TCP Counters
1. Connection Failures:
tcpAttemptFails
2. Connections Active:
tcpActiveOpens
3. Connections Established:
tcpCurrEstab
4. Connections Passive:
tcpPassiveOpens
5. Connections Reset:
tcpEstabResets
6. Segments Received:
tcpInSegs
7. Segments Retransmitted:
tcpRetransSegs
8. Segments Sent:
tcpOutSegs
9. Segments:
no equivalent (tcpInSegs + tcpOutSegs)
QoS Session Counters
Note: These are proprietory counters implemented by QoS Provider Module.
1. Not Served Priority Sessions: The number of premium priority sessions
declined by the QoS module - probably due to bandwidth restrictions.
2. Requested Priority Sessions: Total number of premium priority sessions
requested
3. Served Priority Sessions: Number of premium priority sessions admitted.
QoS Best Effort Traffic Counters
Note: This is a proprietory counter.
1 = Total Best-Effort Octets: Total number octets carried in best-effort level
2 = Total Best-Effort Packets: Total number of packets carried in best-effort level.
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QoS Dropped Packets Counter
Note: Proprietory counter in QoS.
1. Total Dropped Octets: Total number of octets dropped, probably due to
insufficient buffer.
2. Total Dropped Packets: Total number of dropped packets.
QoS Graph Counters
1. Total Octets: Total number of octets sent by QoS
2. Total Packets: Total number of packets sent by QoS
3. Total Priority Octets: Total number of octets carried in premium priority.
QoS Best Effort Queue Counters
Note: This is a proprietory counter.
1. Total Queue XX Octets: Total number of octets carried at specified queue's
priority.
2. Total Queue XX Packets: Total number of packets carried at specified queue's
priority.
3. Total Queue XX Packets Dropped: Total number of packets dropped at
specified queue - probably due to insufficient buffer space.
Enterprise Edge Networking Operations Guide
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Appendix A: Troubleshooting
This chapter includes information on:
•
How to Get Help
•
Troubleshooting
How to Get Help
If you purchased a service contract for your Nortel Networks product from a
distributor or authorized reseller, contact the technical support staff for that
distributor or reseller for assistance.
If you purchased a Nortel Networks service program, contact one of the following
Nortel Networks Technical Solutions Centers:
Technical Solutions Center
Telephone Number
Billerica, MA
800-2LANWAN (800-252-6926)
Santa Clara, CA
800-2LANWAN (800-252-6926)
Valbonne, France
33-4-92-96-69-68
Sydney, Australia
61-2-9927-8800
Tokyo, Japan
81-3-5402-7041
Troubleshooting
For error message information see page. For other troubleshooting information,
contact a Nortel Networks Technical Solutions Center.
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Appendix B: Setting Up Remote Routers
This appendix includes example information on setting up Nortel Networks
(BayRS) router and how to set up a range of UDP as a high priority.
This chapter includes:
•
Creating an Outbound Traffic Filter
•
Sample Criteria, Ranges, and Actions for UDP Filtering
Creating an Outbound Traffic Filter
To create an outbound traffic filter:
1. In the Configuration Manager window, click Circuits and then click Edits
Circuits.
The Circuit List window appears.
2. Select a circuit.
3. Click the Edit button.
The Circuit Definition screen appears with the circuit you select highlighted.
4. Click Protocols, click Edit Protocol Priority and then click Priority/
Outbound Filters.
The Priority/Outbound Filters window appears.
5. Click Template.
The Filter Template Management window appears.
6. Click Create.
The Create Priority/Outbound Template window appears.
7. Specify a descriptive name in the Filter Name field.
8. Click Criteria, click Add, click Datalink, click IP and then click criterion.
The Add Range window appears. If you choose the User-Defined criterion,
the Add User-Defined Field window appears first.
9. Type a minimum and maximum value to specify the range and click the OK
button.
The Add Range window closes. The new criterion and ranges now appear in
the Filter Information field of the Create Priority/Outbound Template window.
10. Click Action, click Add and then click action.
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11. Click the OK button.
The Filter Template Management window opens. The new template appears
in the templates list.
12. Click Done.
The Priority/Outbound Filters window opens.
13. Click Create.
The Create Filter window opens.
14. Select a circuit in the Interfaces field.
15. Select a template in the Templates field.
16. Specify a descriptive name in the Filter Name field.
17. Click OK.
The Priority/Outbound Filters window opens.
18. Click Apply.
The filter is applied to the circuit.
Sample Criteria, Ranges, and Actions for UDP Filtering
The filtering goal is to place all VoIP H.323 traffic leaving a particular interface in
the high priority queue. From the BayRS Site Manager:
Use a criteria path of Criteria, Add, IP, IP, UDP Destination Port
The range is 2065 to 2067.
The action path is: Action, IP, Add, High Queue.
Note: This example shows how to give H.323 traffic priority over other protocols
on the interface.
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Glossary
Term
Definition
address
A unique identifier assigned to networks and stations that allows each
device to receive and reply to messages.
API
An application program interface (API) is the specific method
prescribed by a computer operating system or by another application
program that a programmer uses when writing an application
program. The API is used to make requests of the operating system or
another application.
An API can be contrasted with a graphical user interface or a
command interface (both of which are direct user interfaces) as
interfaces to an operating system or a program.
ARP
The Address Resolution Protocol (ARP) is a protocol for mapping an
IP address to a physical machine address that is recognized in the
local network. For example, in IP Version 4, an address is 32 bits
long. In an Ethernet local area network, however, addresses for
attached devices are 48 bits long. The physical machine address is
also known as a Media Access Control or MAC address. A table,
usually called the ARP cache, is used to maintain a correlation
between each MAC address and its corresponding IP address. ARP
provides the protocol rules for making this correlation and providing
address conversion in both directions.
asynchronous
A method of transmission where the time intervals between characters
are not required to be equal and signals are sourced from independent
clocks with different frequencies and phase relationships. Start and
stop bits may be added to coordinate character transfer.
baud
The signaling rate of a line. The baud rate is the number of voltage or
frequency transitions per second.
CHAP
The Challenge-Handshake Authentication Protocol (CHAP) is a
method of establishing security on PPP links where the peers must
share a plain text identifier. The caller sends a challenge message to
its receiving peer and the receiver responds with a value it calculates
based on the identifier. The first peer then matches the response with
its own calculation. If the values match, the link is established.
CHAP is a more secure procedure for connecting to a system than the
Password Authentication Procedure (PAP).
client
A client is a computer system or process that requests a service of
another computer system or process. A workstation requesting the
contents of a file from a file server is a client of the file server.
dial-up connection
A dial-up connection is a temporary, as opposed to dedicated,
connection between computers established over an analog or digital
phone line.
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DHCP
The Dynamic Host Configuration Protocol (DHCP) is a protocol that
lets network administrators centrally manage and automate the
assignment of IP addresses in an organization's network. Using the
Internet's set of protocols (TCP/IP), each machine that can connect to
the Internet needs a unique IP address. When an organization sets up
its computer users with a connection to the Internet, an IP address
must be assigned to each machine.
Without DHCP, the IP address must be entered manually at each
computer and, if computers move to another location in another part
of the network, a new IP address must be entered. DHCP lets a
network administrator supervise and distribute IP addresses from a
central point and automatically sends a new IP address when a
computer is plugged into a different place in the network.
DiffServ
Differentiated Services (DiffServ) is a implementation methodology
for QoS service for IP networks. DiffServ is a rule based methodology
intended to improve network performance. Instead of applying faster,
more advanced technology, networks are managed by appropriate
network policies. For DiffServ, there is a cost associated with higher
quality services and a risk with lower quality services.
DLCI
The data link connection indentifier (DLCI) is used to identify a PVC
in frame relay networks.
DNS
The domain name system or domain name server (DNS) is the system
in the Internet that maps names of objects (most usually host names)
into IP numbers or other resource record values. The namespace of
the Internet is divided into domains, and the responsibility for
managing names within each domain is delegated, typically to
systems within each domain.
domain name
The domain name is used to organize Internet names into manageable
groups, such as nortelnetworks.com.
Ethernet
Ethernet is a widely used LAN technology defined by the Ethernet
and IEEE 802.3 specification for data transmission.
filtering
Filtering is the process of examining a data packet on the network to
determine the destination of the data and to decide whether the packet
should be passed along on the local LAN, copied to another LAN, or
dropped.
frame
A frame is a unit of data transmission in a local area network.
frame relay
A frame relay is a high-speed, packet switching WAN protocol
designed to provide efficient, high-speed frame or packet
transmission with minimum delay. Frame relay uses minimal error
detection and relies on higher level protocols for error control.
FTP
The file transfer protocol (FTP) allows a user on one host to access
and transfer files to and from another host over a network. On the
Internet, FTP refers to a tool for accessing linked files.
H.323
H.323 is the standard for sending voice (audio) and video using IP on
the public Internet and within intranets.
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HDLC
High-level Data Link Control (HDLC) is a group of protocols or rules
for transmitting data between network points or nodes. In HDLC, data
is organized into a unit (called a frame) and sent across a network to a
destination that verifies its successful arrival. The HDLC protocol
also manages the flow or pacing at which data is sent. HDLC is one of
the most commonly-used protocols in what is Layer 2 of the industry
communication reference model called Open Systems Interconnection
(OSI).
host name
The host name is a readable name that uniquely identifies a device on
the Internet and is associated with a corresponding IP address.
HTTP
The Hypertext Transfer Protocol (HTTP) is the set of rules for
exchanging files (text, graphic images, sound, video, and other
multimedia files) on the world wide web.
ICMP
ICMP is a message control and error-reporting protocol between a
host server and a gateway to the Internet. ICMP uses IP datagrams,
but the messages are processed by the TCP/IP software and are not
directly apparent to the application user.
IETF
The Internet Engineering Task Force (IETF) is the committee that
defines standard Internet operating protocols such as TCP/IP. The
IETF is supervised by the Internet Society's Internet Architecture
Board (IAB).
In-Band
In-band is a method of device access utilizing a network interface
component within the device.
Internet-standard
Network Management
Framework
Device configuration and monitoring via SNMP.
IP
The Internet Protocol (IP) is the protocol that supports data being sent
from one computer to another on the Internet. Each computer on the
Internet has at least one address that uniquely identifies it from all
other computers on the Internet. When you send or receive data (for
example, an e-mail note or a Web page), the message gets divided
into units called packets. Each of these packets contains both the
sender's Internet address and the receiver's address.
IP is a connectionless protocol, which means that there is no
established connection between the end points that are
communicating. Each packet that travels through the Internet is
treated as an independent unit of data without any relation to any
other unit of data. (The reason the packets do get put in the right order
is because of TCP, the connection-oriented protocol that keeps track
of the packet sequence in a message.) In the Open Systems
Interconnection (OSI) communication model, IP is in layer 3, the
Networking Layer.
IP address
The Internet Protocol address is a unique identifier that allows
communication over the Internet to be directed to the appropriate
destination. Every computer on the Internet must have a unique IP
address. IP addresses are allocated by an ISP in following format:
nnn.nnn.nnn.nnn, where nnn is a numeric value from 0 to 255. IP
addressing might be referred to as being static (fixed) or dynamic.
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ISDN
Integrated Services Digital Network (ISDN) is a set of CCITT/ITU
standards for digital transmission over ordinary telephone copper wire
as well as over other media. Home and business users who install
ISDN adapters (in place of their modems) can see highly-graphic web
pages arriving at rates up to 128 Kbps.
LAN
A LAN is a network of interconnected workstations sharing the
resources of a single processor or server within a relatively small
geographic area.
MAC
The Media Access Control (MAC) is a physical address that is the
portion of the data-link layer in 802.x networks that controls
addressing information of the packet and enables data to be sent and
received across a local area network.
Modem
A device that transmits signals over telephone lines. It converts binary
electrical signals into acoustic signals, and vice versa.
multilink PPP
Multilink PPP is an extension to the PPP protocol that enables you to
group a set of links into a bundle for more bandwidth. The links in the
bundle can operate at different speeds. Typical links can be ISDN B
channels, dial-up connections, and leased-lines.
name servers
A name server provides the means of translating readable host
computer names into actual IP addresses so you do not have to
remember long numbers to access other computers and destinations
on the Internet. For example, DNS servers and WINS servers are
name servers.
NetBIOS
The Network Basic Input/Output System (NetBIOS) is an interface
and upper-level protocol developed by IBM for use with a proprietary
adapter for its PC network product. NetBIOS provides a standard
interface to the lower networking layers. The protocol provides
higher-level programs with access to the network. Windows NT
systems use NetBIOS.
Network Device
A network device is a hardware entity characterized by its use as a
communications component within a networking infrastructure.
NIC
A network interface card (NIC) is a computer circuit board or card
that is installed in a computer so that it can be connected to a network.
Personal computers and workstations on local area networks (LANs)
typically contain a network interface card specifically designed for the
LAN transmission technology, such as Ethernet or Token Ring.
Network interface cards provide a dedicated, full-time connection to a
network.
Out-of-Band
Out-of-band is a method of device access circumventing the network
interface components within the device.
router
A router is a device that forwards traffic between networks, based on
network layer information and routing tables. A router decides which
path network traffic follows using routing protocols to gain
information about the network and algorithms to choose the best route
based on a routing matrix.
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PAP
The Password Authentication Protocol (PAP) is a procedure used by
PPP servers to validate a connection request. PAP works as follows:
1.After the link is established, the requestor sends a password and an
id to the server.
2.The server either validates the request and sends back an
acknowledgement, terminates the connection, or offers the requestor
another chance.
Passwords are sent without security and the originator can make
repeated attempts to gain access. For these reasons, a server that
supports CHAP will offer to use that protocol before using PAP.
Packet
A packet is the unit of data that is routed between an origin and a
destination on the Internet or any other packet-switched network.
When any file (e-mail message, HTML file, GIF file, URL request,
and so forth) is sent from one place to another on the Internet, the
Transmission Control Protocol (TCP) layer of TCP/IP divides the file
into pieces of an efficient size for routing. Each of these packets is
separately numbered and includes the Internet address of the
destination. The individual packets for a given file may travel
different routes through the Internet. When the packets have all
arrived, they are reassembled into the original file (by the TCP layer
at the receiving end).
A packet-switching scheme is an efficient way to handle
transmissions on a connectionless network such as the Internet. An
alternative scheme, circuit-switching, is used for networks allocated
for voice connections. In circuit-switching, lines in the network are
shared among many users as with packet-switching, but each
connection requires the dedication of a particular path for the duration
of the connection.
Packet and datagram are similar in meaning. A protocol similar to
TCP, the User Datagram Protocol (UDP) uses the term datagram.
PBX
A PBX (private branch exchange) is a telephone system within an
enterprise that switches calls between enterprise users on local lines
while allowing all users to share a certain number of external phone
lines. The main purpose of a PBX is to save the cost of requiring a line
for each user to the telephone company's central office.
The PBX is owned and operated by the enterprise rather than the
telephone company (which may be a supplier or service provider,
however).
PPP
The Point-to-Point Protocol (PPP) is a protocol for communication
between two computers using a serial interface, typically a personal
computer connected by phone line to a server. For example, your
Internet server provider may provide you with a PPP connection so
that the provider's server can respond to your requests, pass them on
to the Internet, and forward your requested Internet responses back to
you.
PPP is a full-duplex protocol that can be used on various physical
media, including twisted pair or fiber optic lines or satellite
transmission. It uses a variation of High Speed Data Link Control
(HDLC) for packet encapsulation.
PPP can process synchronous as well as asynchronous
communication. PPP can share a line with other users and it has error
detection.
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174 Glossary
protocol
A protocol is a formal set of communication rules developed by
international standards bodies, LAN equipment vendors, or groups
governing the format, control, and timing of network
communications.
PVC
The permanent virtual circuit (PVC) is an end-to-end virtual
connection in frame relay networks.
relaying
Relaying is the process of moving data along a path determined by a
routing process. The data is relayed between a source and a
destination.
remote (device)
A remote device is any network device that is accessible only by
means of communication over a digital or analog (dial-up) network.
proxy
A proxy is a server that acts on behalf of another.
QoS
On the Internet and in other networks, Quality of Service (QoS) is the
idea that transmission rates, error rates, and other characteristics can
be measured, improved, and, to some extent, guaranteed in advance.
QoS is of particular concern for the continuous transmission of highbandwidth video and multimedia information.
Using the Internet's Resource Reservation Protocol (RSVP), packets
passing through a gateway host can be expedited based on policy and
reservation criteria arranged in advance. Using ATM, which also lets
a company or user preselect a level of quality in terms of service, QoS
can be measured and guaranteed in terms of the average delay at a
gateway, the variation in delay in a group of cells (cells are 53-byte
transmission units), cell losses, and the transmission error rate.
In Enterprise Edge, QoS is provided over IP. QoS is guaranteed for
outgoing traffic until it reaches the next hop.
RAS
The remote access service (RAS) is the ability to get access to a
computer or a network from a remote distance. In corporations,
people at branch offices, telecommuters, and people who are
travelling may need access to the corporation's network. Home users
get access to the Internet through remote access to an Internet service
provider (ISP).
A remote access server is the computer and associated software that is
set up to handle users seeking access to network remotely. Sometimes
called a communication server, a remote access server usually
includes or is associated with a firewall server to ensure security and a
router that can forward the remote access request to another part of
the corporate network.
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Glossary 175
RIP
The Routing Information Protocol (RIP) enables routers in the same
autonomous system to exchange routing information by means of
periodic updates. RIP is a widely-used protocol for managing routing
information within a self-contained network such as a corporate local
area network (LAN) or an interconnected group of such LANs.
Using RIP, a gateway host (with a router) sends its entire routing table
(which lists all the other hosts is has on record) to its closest neighbor
host every 30 seconds. The neighbor host passes the information to its
next neighbor and so on until all hosts within the network have the
same routing path information, a state known as network
convergence. RIP uses a hop count as a way to determine network
distance. Each host with a router in the network uses the routing table
information to determine the next host to route a packet to for a
specified destination.
RIP is considered an effective solution for small homogeneous
networks. For larger, more complicated networks, RIP's transmission
of the entire routing table every 30 seconds may put a heavy amount
of extra traffic in the network.
The major alternative to RIP is the Open Shortest Path First Protocol
(OSPF).
SNMP
The Simple Network Management Protocol (SNMP) is the protocol
governing network management and the monitoring of network
devices and their functions.
subnet mask
A value used to route packets on TCP/IP networks. When the IP layer
has to deliver a packet through an interface, it uses the destination
address contained in the packet, together with the subnet mask of the
interface to select an interface, and the next hop in that subnet.
synchronous
A synchronous signal is sourced from the same timing reference. A
synchronous signal causes the interval between successive bits,
characters, or events to remain constant or locked in to a specific
clock frequency.
TAPI
The Telephony Application Program Interface (TAPI) is a standard
program interface that lets you and your computer communicate over
telephones or video phones to people or phone-connected resources
elsewhere in the world.
TCP
The Transmission Control Protocol is the major transport protocol in
the Internet suite of protocols providing reliable, connection-oriented,
full-duplex streams.
TCP/IP
The Transmission Control Protocol/Internet Protocol (TCP/IP) is a set
of networking protocols designed to link computers from multiple
vendors.
Telnet
Telnet is a service that provides terminal-emulation capabilities for
logging into the Enterprise Edge unit from a remote location.
Token-Ring
A token-ring is a network topology and data signaling scheme where
a special data packet (called a token) is passed from one station to
another along an electrical ring. A transmitting station takes
possession of the token, transmits the data, then frees the token after
the data has made a complete circuit of the electrical ring.
TOS
The type of service (TOS) field is located in the IP packet header and
is used in DifServ processing.
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176 Glossary
UDP
The User Datagram Protocol (UDP) is a protocol that offers a limited
amount of service when messages are exchanged between computers
in a network that uses IP. UDP is an alternative to the Transmission
Control Protocol (TCP) and, together with IP, is sometimes referred
to as UDP/IP.
Like the Transmission Control Protocol, UDP uses IP to actually
transfer a data unit (called a datagram) from one computer to another.
Unlike TCP, however, UDP does not provide the service of dividing a
message into packets (datagrams) and reassembling it at the other end.
Specifically, UDP doesn't provide sequencing of the packets that the
data arrives in. This means that the application program that uses
UDP must be able to make sure that the entire message has arrived
and is in the right order.
Network applications that want to save processing time because they
have very small data units to exchange (and therefore very little
message reassembling to do) may prefer UDP to TCP. The Trivial
File Transfer Protocol (TFTP) uses UDP instead of TCP.
VoIP
Voice over IP (VoIP) is the capability to deliver voice using the
Internet Protocol. VoIP is a set of facilities for managing the delivery
of voice information using the IP. In general, this means sending
voice information in digital form in discrete packets rather than in the
traditional circuit-committed protocols of the public switched
telephone network (PSTN). A major advantage of VoIP and Internet
telephony is that it avoids the tolls charged by ordinary telephone
service.
In addition to IP, VoIP uses the real-time protocol (RTP) to help
ensure that packets get delivered in a timely way. Using public
networks, it is difficult to guarantee Quality of Service (QoS).
Using VoIP, an enterprise positions a VoIP device at a gateway. The
gateway receives packetized voice transmissions from users within
the company and then routes them to other parts of its intranet (local
area or wide area network) or, using a T-1 or E-1 interface, sends
them over the public switched telephone network.
WAN
A wide area network (WAN) is a geographically dispersed
telecommunications network and the term distinguishes a broader
telecommunication structure from a local area network (LAN). A
wide area network may be privately owned or rented, but the term
usually connotes the inclusion of public (shared user) networks.
Web cache
A web cache is a server or collection of servers that store copies of
Internet content. The web cache server can be either located on the
LAN where the clients it serves are also located, or it can be
embedded within the enterprise WAN or at the client’s Internet
Service Provider (ISP).
Web proxy (or HTTP
proxy)
A web proxy is a server that acts on behalf of the requester of pages
from an HTTP server and the Internet.
WFQ
Weighted Fair Queuing (WFQ) is a queuing method that allows low
volume traffic such as Telnet to be given priority and interactive
traffic receives higher priority than batch transfers. Also, high
bandwidth usage traffic such as batch file transfer traffic gets equal
priority with other high bandwidth use traffic.
Enterprise Edge Networking Operations Guide
P0910464 Issue 01
Index
A
accessing the menu 17
accessing Unified Manager settings
management 44, 147
resources 44, 53
services 44, 77
system 44
address 171
Address Resolution Protocol (ARP) 171
adjusting views
columns 13
edges 13
navigation tree 13
administration
web based, setting up 21
admission control
guidelines 35
introduction 34
alarm manager settings
overview 150
alarm service settings
overview 144
API 171
application program interface 171
asynchronous 171
B
baud 171
C
cancel buttons 10
canceling changes 10
Challenge-Handshake Authentication Protocol
(CHAP) 171
changes
canceling 10
storing 10
client 171
columns, changing the order of 15
command buttons, navigating with 9
configuration window
element names 10
save and cancel buttons 10
scroll bars 10
status indicator 10
text fields 10
window identifier 10
configuration windows, understanding 10
configuring Enterprise Edge
dialog box window format 10
P0910464 Issue 01
edit in place format 10
with edit in place 11
configuring management settings
alarm manager
overview 150
introduction 147
user manager
overview 147
configuring resource settings
introduction 53
LAN 54
MSC 74
telephony 75
WAN backup links
access parameters 73
link parameters 71
overview 69
summary parameters 70
WAN primary links
access parameters 60
frame relay parameters 63
line parameters 61
overview 58
performance graphs and tables 68
PPP parameters 67
configuring service settings
alarm service
overview 144
DHCP
LAN 80
overview 78
DNS
overview 86
introduction 77
NetLink manager
overview 129
QoS
filters 115
overview 110
performance graphs and tables 114
port ranges 118
QoS monitor
mean opinion score 127
overview 126
routing
LAN 88
overview 87
WAN 101
SNMP
community list 105
Enterprise Edge Networking Operations Guide
178 Index
manager list 105
overview 103
trap community list 105
Tapi service provider
overview 140
voice mail
overview 145
voice record
access/suppress settings 139
market parameters 136
overview 131
prefix settings 138
report options 134
voice service 142
VoIP Gateway 121
overview 120
Web cache
overview 128
configuring system settings
date 51
fault alarm banner 49
identification 51
introduction 44
name 45
performance graphs and tables 48
resource services 45
time 51
connecting to Enterprise Edge, methods for
remote dial-in 42
D
data link connection indentifier (DLCI) 172
date, system 51
DHCP 172
configuring automatically 28
guidelines 28
introduction 27
DHCP service settings
LAN 80
overview 78
diagnostics 153
dialog box window
format 10
dial-up connection 171
Differentiated Services (DiffServ) 172
DiffServ 172
DiffServ networks
introduction 33
packet marking 35
DLCI 172
DNS 172
gateway 29
guidelines 29
introduction 29
Enterprise Edge Networking Operations Guide
proxy 29
DNS service settings
overview 86
domain name 172
download system settings 154
Dynamic Host Configuration Protocol (DHCP)
172
dynamic IP addressing 25
E
edit in place
configuring with 11
format 10
element names 10
Enterprise Edge
administration, web-based, setting up 21
admission control 34
as a DHCP server 28
IP addresses, setting up
with a laptop 20
with a PC 20
IP routing
information protocol 26
specifics 25
static 26
LAN connections
overview 39
logging off 23
logging on 22
operational considerations 21
packet marking 35
powering down 23
rebooting 23
WAN connections
backup 41
overview 39
permanent 40
frame relay 40
PPP 40
error messages
10.5.2 161
11.12.10 161
11.19.9 161
11.5.2 161
14.17.40 162
14.17.41 162
14.17.68 162
14.4.21 161
14.5.77 162
2.5.4 158
2.5.6 158
2.5.8 158
2.xx.4 158
2.xx.6 158
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Index 179
5.16.68 160
5.4.59 159
5.5.39 159
5.5.40 159
5.5.41 159
5.5.45 159
8.4.2. 160
8.5.3 160
8.8.3 160
9.4.2 160
9.6.4 160
9.6.5 160
9.6.6 160
overview 158
system notification 10
user actions 158
Ethernet 172
LAN connections 39
WAN connections
backup 41
overview 39
permanent 40
frame relay 40
PPP 40
F
fast path routing 27
fault alarm banner settings 49
file transfer protocol (FTP) 172
filtering 172
criteria 170
ranges 170
filters
QoS 115
QoS, adding 116
QoS, deleting 117
QoS, modifying 116
frame 172
frame relay 40, 172
frame relay parameters, WAN 63
FTP 172
G
gateway, DNS 29
H
H.323 172
HDLC 173
help, customer support 167
High-level Data Link Control (HDLC) 173
host name 173
HTTP 173
HTTP proxy 178
Hypertext Transfer Protocol (HTTP) 173
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I
ICMP 173
ICMP counters 164
identification, system 51
IETF 173
In-Band 173
information panel view 9
Internet Protocol (IP) 173
introduction 7
IP address 173
IP addresses, setting up
with a laptop 20
with a PC 20
IP addressing
dynamic 25
overview 25
static 25
IP routing
information protocol 26
introduction 24
overview 24
specifics 25
IP services
DHCP
configuring 28
ISDN 174
J
JAVA Virtual Machine (JVM) 21
L
LAN 174
LAN connections 39
LAN resource settings 54
LAN routing services 88
LAN to LAN fast path routing 27
LAN, DHCP settings 80
Legacy networks
introduction 33
port range settings 37
line parameters, WAN 61
link parameters, WAN 71
logging off of Enterprise Edge 23
logging on to Enterprise Edge 22
logon definitions
configure 23
download 23
login 23
password 23
upload 23
M
management settings, configuring 147
mean opinion score, QoS monitor 127
Media Access Control (MAC) 174
Enterprise Edge Networking Operations Guide
180 Index
menu bar, navigating with 9
menu descriptions 17
MIB-II
counters 163
variables 163
modem 174
MSC settings 74
multilink PPP 174
N
name servers 174
name, system 45
navigation
between views 14
command buttons 9
information panel view 9
menu bar 9
navigation keys 9
navigation tree 9
scroll bars 10
TAB key 11
navigation keys, navigating with 9
navigation tree, navigating with 9
NetBIOS 174
NetLink manager settings
overview 129
network device 174
network interface card (NIC) 174
NIC 174
Nortel Networks Technical Solutions Centers
167
O
operational considerations 21
outbound traffic filter, creating 169
Out-of-Band 174
P
packet 175
packet filtering
features
destination address 27
destination mask 27
destination port 27
ICMP code 27
ICMP type 27
protocol 27
source address 27
source mask 27
source port 27
introduction 26
packet marking
DiffServe networks 35
TOS, premium traffic 35
TOS, priority filters 35
parameters
Enterprise Edge Networking Operations Guide
obtaining required values 19
required values 19
parameters, configuring 10
Password Authentication Protocol (PAP) 175
PBX (private branch exchange) 175
performance 156
statistics, generating 16
performance graphs and tables
QoS 114
system 48
WAN 68
permanent virtual circuit (PVC) 176
Point to Point Protocol (PPP) 40
Point-to-Point Protocol (PPP) 175
port range settings
Legacy networks, overview 37
port ranges
QoS 118
QoS, adding 119
QoS, deleting 119
QoS, modifying 118
service settings 118
powering down Enterprise Edge 23
PPP 175
PPP parameters, WAN 67
protocol 176
protocols
routing information 26
proxy 176
DNS 29
web caching 30
Q
QoS best effort queue counters 166
QoS best effort traffic counters 165
QoS dropped packets counter 166
QoS filters
adding 116
deleting 117
modifying 116
QoS graph counters 166
QoS module
relationship with the VoIP QoS monitor,
overview 38
restrictions and defaults 38
QoS monitor settings
mean opinion score 127
overview 126
QoS port ranges
adding 119
deleting 119
modifying 118
QoS service settings 110
P0910464 Issue 01
Index 181
filter 115
performance graphs and tables 114
port ranges 118
QoS session counters 165
Quality of Service (QoS) 176
overview 32
R
RAS 176
rebooting Enterprise Edge 23
relaying 176
remote (device) 176
remote access service (RAS) 176
remote dial-in
guidelines 42
remote routers, setting up 169
resource services settings 45
resource settings, configuring 53
RIP 177
RIP, enabling on network interfaces 26
router 174
routing
LAN settings 88
settings 87
WAN settings 101
routing and IPservices 7
Routing Information Protocol (RIP) 177
routing, IP
information protocol 26
introduction 24
IP addressing overview 25
managing information 26
overview 24
packet filtering
introduction 26
RIP protocol 26
static 26
routing, LAN to LAN fast path 27
S
sample rate 157
save buttons 10
saving settings 153
scroll bars 10
services, configuring 77
services, IP
DHCP
configuring 28
setting up
JAVA Virtual Machine 21
logging off of Enterprise Edge 23
logging on to Enterprise Edge 22
operational considerations 21
powering down Enterprise Edge 23
P0910464 Issue 01
rebooting Enterprise Edge 23
web-based administration 21
settings, saving 153
Simple Network Management Protocol (SNMP)
177
SNMP 177
guidelines 31
overview 31
SNMP service settings
community list 105
manager list 105
overview 103
trap community list 105
static IP addressing 25
static IP routing 26
statistics
charts 156
charts, generating 16
generating 156
sample rate 157
tables 157
tables, generating 16
statistics, generating 16
status indicator 10
storing changes 10
subnet mask 177
summary parameters, WAN 70
support 167
synchronous 177
system notification
error messages 10
system performance graphs and tables 48
system settings, configuring 44
system software 8
T
TAPI 177
Tapi service provider
overview 140
TCP 177
TCP counters 165
TCP/IP 177
technical support 167
Telephony Application Program Interface (TAPI)
177
telephony settings 75
Telnet 177
text fields 10
time, system 51
token-ring 177
TOS 177
premium traffic 35
priority filters 35
Enterprise Edge Networking Operations Guide
182 Index
troubleshooting 167
type of service (TOS) 177
U
UDP 178
UDP counters 165
Unified Manager
accessing menu 17
adjusting views 13
column order, changing 15
configuring 10
menu descriptions 17
navigating 9
navigating between views 14
parameters, configuring 10
statistics, generating 16
User Datagram Protocol (UDP) 178
user manager settings
overview 147
utilities
overview 153
performance 156
summary parameters 70
primary links
access parameters 60
frame relay parameters 63
line parameters 61
overview 58
performance graphs and tables 68
PPP parameters 67
WAN routing services 101
web cache 178
Web cache settings
overview 128
web caching/proxy
guidelines 30
introduction 30
web proxy 178
web-based administration, setting up 21
Weighted Fair Queuing (WFQ) 178
wide area network (WAN) 178
window identifier 10
V
views, navigation between 14
voice mail settings
overview 145
voice record
access/suppress settings 139
market parameters settings 136
prefix settings 138
report options settings 134
service settings 131
voice service settings 142
VoIP 178
VoIP gateway settings
local gateway 121
overview 120
remote gateway 121
VoIP QoS Monitor
relationship with the QoS module, overview
38
W
WAN bandwidth, for admission control 34
WAN connections
backup 41
overview 39
permanent 40
frame relay 40
PPP 40
WAN resource settings
backup links
access parameters 73
link parameters 71
overview 69
Enterprise Edge Networking Operations Guide
P0910464 Issue 01
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