Moxa Managed Ethernet Switches User`s Manual

Moxa Managed Ethernet Switches
User’s Manual
Third Edition, August 2012
www.moxa.com/product
© 2012 Moxa Inc. All rights reserved.
Moxa Managed Ethernet Switches
User’s Manual
The software described in this manual is furnished under a license agreement and may be used only in accordance with
the terms of that agreement.
Copyright Notice
© 2011 Moxa Inc., All rights reserved.
Trademarks
The MOXA logo is a registered trademark of Moxa Inc.
All other trademarks or registered marks in this manual belong to their respective manufacturers.
Disclaimer
Information in this document is subject to change without notice and does not represent a commitment on the part of
Moxa.
Moxa provides this document as is, without warranty of any kind, either expressed or implied, including, but not limited
to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this manual, or to the
products and/or the programs described in this manual, at any time.
Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no responsibility for
its use, or for any infringements on the rights of third parties that may result from its use.
This product might include unintentional technical or typographical errors. Changes are periodically made to the
information herein to correct such errors, and these changes are incorporated into new editions of the publication.
Technical Support Contact Information
www.moxa.com/support
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Toll-free: 800-820-5036
Tel:
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Fax:
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Table of Contents
1.
About this Manual ............................................................................................................................. 1-1
2.
Getting Started.................................................................................................................................. 2-1
Serial Console Configuration (115200, None, 8, 1, VT100) ....................................................................... 2-2
Configuration by Telnet Console ........................................................................................................... 2-4
Configuration by Web Browser ............................................................................................................. 2-6
Disabling Telnet and Browser Access ..................................................................................................... 2-8
3.
Featured Functions ........................................................................................................................... 3-1
Configuring Basic Settings ................................................................................................................... 3-2
System Identification ................................................................................................................... 3-2
Password.................................................................................................................................... 3-3
Accessible IP List ......................................................................................................................... 3-4
Port Settings............................................................................................................................... 3-5
Network Parameters .................................................................................................................... 3-6
System Time Settings .................................................................................................................. 3-8
IEEE 1588 PTP ............................................................................................................................ 3-9
System File Update.................................................................................................................... 3-14
Restart..................................................................................................................................... 3-16
Reset to Factory Default ............................................................................................................. 3-16
Using Port Trunking .......................................................................................................................... 3-16
The Port Trunking Concept ......................................................................................................... 3-16
Port Trunking Settings ............................................................................................................... 3-17
Configuring SNMP ............................................................................................................................. 3-18
SNMP Read/Write Settings.......................................................................................................... 3-20
Trap Settings ............................................................................................................................ 3-21
Private MIB Information ............................................................................................................. 3-21
Using PoE (PoE Models Only).............................................................................................................. 3-22
Using Traffic Prioritization .................................................................................................................. 3-25
The Traffic Prioritization Concept ................................................................................................. 3-25
Configuring Traffic Prioritization .................................................................................................. 3-27
Using Virtual LAN .............................................................................................................................. 3-29
The Virtual LAN (VLAN) Concept .................................................................................................. 3-29
Sample Applications of VLANs Using Moxa Switches ....................................................................... 3-31
Configuring Virtual LAN .............................................................................................................. 3-32
Using Multicast Filtering ..................................................................................................................... 3-36
The Concept of Multicast Filtering ................................................................................................ 3-36
Configuring IGMP Snooping ........................................................................................................ 3-39
Current Active IGMP Streams ...................................................................................................... 3-41
Static Multicast MAC Addresses ................................................................................................... 3-42
Configuring GMRP...................................................................................................................... 3-43
GMRP Table .............................................................................................................................. 3-43
Multicast Filtering Behavior ......................................................................................................... 3-44
Using Bandwidth Management............................................................................................................ 3-44
Configuring Bandwidth Management ............................................................................................ 3-44
Security........................................................................................................................................... 3-48
User Login Authentication – User Login Settings ............................................................................ 3-48
User Login Authentication – Auth Server Setting ........................................................................... 3-48
Using Port Access Control .................................................................................................................. 3-49
Static Port Lock ......................................................................................................................... 3-49
IEEE 802.1X ............................................................................................................................. 3-49
Configuring Static Port Lock ........................................................................................................ 3-50
Configuring IEEE 802.1X ............................................................................................................ 3-51
Using Auto Warning .......................................................................................................................... 3-53
Configuring Email Warning ......................................................................................................... 3-53
Configuring Relay Warning ......................................................................................................... 3-56
Using Line-Swap-Fast-Recovery.......................................................................................................... 3-57
Configuring Line-Swap Fast Recovery .......................................................................................... 3-57
Using Set Device IP........................................................................................................................... 3-57
Configuring Set Device IP ........................................................................................................... 3-58
Using Diagnosis ................................................................................................................................ 3-61
Mirror Port ................................................................................................................................ 3-61
Ping ......................................................................................................................................... 3-62
LLDP Function ........................................................................................................................... 3-62
Using Monitor ................................................................................................................................... 3-63
Monitor by Switch...................................................................................................................... 3-63
Monitor by Port ......................................................................................................................... 3-64
Monitor by SFP.......................................................................................................................... 3-64
Using the MAC Address Table ............................................................................................................. 3-65
Using Access Control List ................................................................................................................... 3-65
The ACL Concept ....................................................................................................................... 3-66
Access Control List Configuration and Setup ................................................................................. 3-67
Using Event Log ............................................................................................................................... 3-70
Using Syslog .................................................................................................................................... 3-71
Using HTTPS/SSL.............................................................................................................................. 3-71
4.
EDS Configurator GUI ........................................................................................................................ 4-1
Starting EDS Configurator .................................................................................................................... 4-2
Broadcast Search................................................................................................................................ 4-2
Search by IP Address .......................................................................................................................... 4-3
Upgrade Firmware .............................................................................................................................. 4-3
Modify IP Address ............................................................................................................................... 4-4
Export Configuration ........................................................................................................................... 4-4
Import Configuration ........................................................................................................................... 4-5
Unlock Server .................................................................................................................................... 4-6
A.
MIB Groups ....................................................................................................................................... A-1
1
1.
About this Manual
Thank you for purchasing a Moxa managed Ethernet switch. Read this user’s manual to learn how to connect
your Moxa switch to Ethernet-enabled devices used for industrial applications.
The following two chapters are covered in this user manual:
 Getting Started
This chapter explains how the initial installation process for Moxa switch. There are three ways to access
Moxa switch's configuration settings: the serial console, Telnet console, and web console.
 Featured Functions
This chapter explains how to access Moxa switch's various configuration, monitoring, and administration
functions. These functions can be accessed by serial, Telnet, or web console. The web console is the most
user-friendly way to configure Moxa switch. In this chapter, we use the web console interface to introduce
the functions.
2
2.
Getting Started
In this chapter we explain how to install a Moxa switch for the first time. There are three ways to access the
Moxa switch’s configuration settings: serial console, Telnet console, or web console. If you do not know the
Moxa switch’s IP address, you can open the serial console by connecting the Moxa switch to a PC’s COM port
with a short serial cable. You can open the Telnet or web console over an Ethernet LAN or over the Internet.
The following topics are covered in this chapter:
 Serial Console Configuration (115200, None, 8, 1, VT100)
 Configuration by Telnet Console
 Configuration by Web Browser
 Disabling Telnet and Browser Access
Moxa Managed Ethernet Switches
Getting Started
Serial Console Configuration (115200, None, 8,
1, VT100)
NOTE
•
You cannot connect to the serial and Telnet console at the same time.
•
You can connect to the web console and another console (serial or Telnet) at the same time. However, we
strongly recommend that you do NOT do so. Following this advice will allow you to maintain better control
over the Moxa switch’s configuration.
NOTE
We recommend using PComm Terminal Emulator when opening the serial console. This software can be
downloaded free of charge from the Moxa website.
Before running PComm Terminal Emulator, use an RJ45 to DB9-F (or RJ45 to DB25-F) cable to connect the
Moxa switch’s console port to your PC’s COM port (generally COM1 or COM2, depending on how your system is
set up).
After installing PComm Terminal Emulator, open the Moxa switch’s serial console as follows:
1. From the Windows desktop, click Start  Programs  PComm Lite 1.3  Terminal Emulator.
2. Select Open under the Port Manager menu to open a new connection.
2-2
Moxa Managed Ethernet Switches
Getting Started
3. The Property window should open. On the Communication Parameter tab for Ports, select the COM
port that is being used for the console connection. Set the other fields as follows: 115200 for Baud Rate,
8 for Data Bits, None for Parity, and 1 for Stop Bits.
4. On the Terminal tab, select VT100 for Terminal Type, and then click OK to continue.
5. In the terminal window, the Moxa switch will prompt you to select a terminal type. Enter 1 to select
ansi/vt100 and then press Enter.
2-3
Moxa Managed Ethernet Switches
Getting Started
6. The serial console will prompt you to log in. Press Enter and select admin or user. Use the down arrow key
on your keyboard to select the Password field and enter a password if desired. This password will be
required to access any of the consoles (web, serial, Telnet). If you do not wish to create a password, leave
the Password field blank and press Enter.
7. The Main Menu of the Moxa switch’s serial console should appear. (In PComm Terminal Emulator, you can
adjust the font by selecting Font… from the Edit menu.)
8. Use the following keys on your keyboard to navigate the Moxa switch’s serial console:
Key
Function
Up, down, right, left arrow keys,
Move the onscreen cursor
Tab
Enter
Display and select options
Space
Toggle options
Esc
Previous menu
Configuration by Telnet Console
Opening the Moxa switch’s Telnet or web console over a network requires that the PC host and Moxa switch are
on the same logical subnet. You may need to adjust your PC host’s IP address and subnet mask. By default, the
Moxa switch’s IP address is 192.168.127.253 and the Moxa switch’s subnet mask is 255.255.255.0 (referred to
as a Class B network). Your PC’s IP address must be set to 192.168.xxx.xxx if the subnet mask is 255.255.0.0,
or to 192.168.127.xxx if the subnet mask is 255.255.255.0.
2-4
Moxa Managed Ethernet Switches
NOTE
Getting Started
To connect to the Moxa switch’s Telnet or web console, your PC host and the Moxa switch must be on the same
logical subnet.
NOTE
When connecting to the Moxa switch’s Telnet or web console, first connect one of the Moxa switch’s Ethernet
ports to your Ethernet LAN, or directly to your PC’s Ethernet port. You may use either a straight-through or
cross-over Ethernet cable.
NOTE
The Moxa switch’s default IP address is 192.168.127.253.
After making sure that the Moxa switch is connected to the same LAN and logical subnet as your PC, open the
Moxa switch’s Telnet console as follows:
1. Click Start  Run from the Windows Start menu and then Telnet to the Moxa switch’s IP address from the
Windows Run window. You may also issue the Telnet command from a DOS prompt.
2. In the terminal window, the Telnet console will prompt you to select a terminal type. Type 1 to choose
ansi/vt100, and then press Enter.
3. The Telnet console will prompt you to log in. Press Enter and then select admin or user. Use the down
arrow key on your keyboard to select the Password field and enter a password if desired. This password
will be required to access any of the consoles (web, serial, Telnet). If you do not wish to create a password,
leave the Password field blank and press Enter.
2-5
Moxa Managed Ethernet Switches
Getting Started
4. The Main Menu of the Moxa switch’s Telnet console should appear.
5. In the terminal window, select Preferences… from the Terminal menu on the menu bar.
6. The Terminal Preferences window should appear. Make sure that VT100 Arrows is checked.
7. Use the following keys on your keyboard to navigate inside the Moxa switch’s Telnet console:
Key
Function
Up, down, right, left arrow keys,
Move the onscreen cursor
Tab
NOTE
Enter
Display and select options
Space
Toggle options
Esc
Previous menu
The Telnet console looks and operates in precisely the same manner as the serial console.
Configuration by Web Browser
The Moxa switch’s web console is a convenient platform for modifying the configuration and accessing the
built-in monitoring and network administration functions. You can open the Moxa switch’s web console using a
standard web browser, such as Internet Explorer.
NOTE
To connect to the Moxa switch’s Telnet or web console, your PC host and the Moxa switch must be on the same
logical subnet.
NOTE
If the Moxa switch is configured for other VLAN settings, you must make sure your PC host is on the
management VLAN.
2-6
Moxa Managed Ethernet Switches
NOTE
Getting Started
When connecting to the Moxa switch’s Telnet or web console, first connect one of the Moxa switch’s Ethernet
ports to your Ethernet LAN, or directly to your PC’s Ethernet port. You may use either a straight-through or
cross-over Ethernet cable.
NOTE
The Moxa switch’s default IP address is 192.168.127.253.
After making sure that the Moxa switch is connected to the same LAN and logical subnet as your PC, open the
Moxa switch’s web console as follows:
1. Connect your web browser to the Moxa switch’s IP address by entering it in the Address or URL field.
2. The Moxa switch’s web console will open, and you will be prompted to log in. Select the login account
(admin or user) and enter the Password. This password will be required to access any of the consoles (web,
serial, Telnet). If you do not wish to create a password, leave the Password field blank and press Enter.
NOTE
By default, no password is assigned to the Moxa switch’s web, serial, and Telnet consoles.
3. After logging in, you may need to wait a few moments for the web console to appear. Use the folders in the
left navigation panel to navigate between different pages of configuration options.
2-7
Moxa Managed Ethernet Switches
Getting Started
Disabling Telnet and Browser Access
If you are connecting the Moxa switch to a public network but do not intend to manage it over the network, we
suggest disabling both the Telnet and web consoles. This is done from the serial console by navigating to
System Identification under Basic Settings. Disable or enable the Telnet Console and Web
Configuration as shown below:
2-8
3
3.
Featured Functions
In this chapter, we explain how to access the Moxa switch’s various configuration, monitoring, and
administration functions. These functions can be accessed by serial, Telnet, or web console. The serial console
can be used if you do not know the Moxa switch’s IP address and requires that you connect the Moxa switch to
a PC COM port. The Telnet and web consoles can be opened over an Ethernet LAN or the Internet.
The web console is the most user-friendly interface for configuring a Moxa switch. In this chapter, we use the
web console interface to introduce the functions. There are only a few differences between the web console,
serial console, and Telnet console.
The following topics are covered in this chapter:
 Configuring Basic Settings
 Using Port Trunking
 Configuring SNMP
 Using PoE (PoE Models Only)
 Using Traffic Prioritization
 Using Virtual LAN
 Using Multicast Filtering
 Using Bandwidth Management
 Security
 Using Port Access Control
 Using Auto Warning
 Using Line-Swap-Fast-Recovery
 Using Set Device IP
 Using Diagnosis
 Using Monitor
 Using the MAC Address Table
 Using Access Control List
 Using Event Log
 Using Syslog
 Using HTTPS/SSL
Moxa Managed Ethernet Switches
Featured Functions
Configuring Basic Settings
The Basic Settings section includes the most common settings required by administrators to maintain and
control a Moxa switch.
System Identification
System Identification items are displayed at the top of the web console and will be included in alarm emails.
You can configure the System Identification items to make it easier to identify different switches that are
connected to your network.
Switch Name
Setting
Description
Factory Default
Max. 30 characters
This option is useful for differentiating between the roles or
Managed
applications of different units. Example: Factory Switch 1.
Redundant Switch
[Serial no. of this
switch]
Switch Location
Setting
Description
Max. 80 characters
This option is useful for differentiating between the locations of Switch Location
Factory Default
different units. Example: production line 1.
Switch Description
Setting
Description
Factory Default
Max. 30 characters
This option is useful for recording a more detailed description of None
the unit.
Maintainer Contact Info
Setting
Description
Factory Default
Max. 30 characters
This option is useful for providing information about who is
None
responsible for maintaining this unit and how to contact this
person.
Web Auto-logout (S)
Setting
Description
Factory Default
60 to 86400 (seconds)
Disable or extend the auto-logout time for the web
0 (disable)
management console.
3-2
Moxa Managed Ethernet Switches
Featured Functions
Age Time (S)
Setting
Description
15 to 3825 (seconds)
The length of time that a MAC address entry can remain in the 300
Factory Default
Moxa switch. When an entry reaches its aging time, it “ages
out” and is purged from the switch, effectively cancelling frame
forwarding to that specific port.
Jumbo Frame
Setting
Description
Factory Default
Enable
Enables the Moxa switch to support the Jumbo Frame function Disable
Disable
Disables the Jumbo Frame function
Jumbo Frame MAX (bytes)
Setting
Description
1522 to 9000
The maximum length supported by the Jumbo Frame function 9000
Factory Default
Note: “Jumbo Frame” is supported by the IKS-G6000 series and the ICS-G7000 Series.
Password
The Moxa switch provides two levels of configuration access. The admin account has read/write access of all
configuration parameters, and the user account has read access only. A user account can view the
configuration, but will not be able to make modifications.
ATTENTION
By default, a password is not assigned to the Moxa switch’s web, Telnet, and serial consoles. If a password is
assigned, you will be required to enter the password when you open the serial console, Telnet console, or Web
console.
Account
Setting
Description
Factory Default
Admin
This account can modify the Moxa switch’s configuration.
admin
User
This account can only view the Moxa switch’s configurations.
Password
Setting
Description
Factory Default
Old password
Enter the current password
None
(max. 16 characters)
New password
Enter the desired new password. Leave it blank if you want to None
(Max. 16 characters)
remove the password.
Retype password (Max. Enter the desired new password again. Leave it blank if you
16 characters)
want to remove the password.
3-3
None
Moxa Managed Ethernet Switches
Featured Functions
Accessible IP List
The Moxa switch uses an IP address-based filtering method to control access.
You may add or remove IP addresses to limit access to the Moxa switch. When the accessible IP list is enabled,
only addresses on the list will be allowed access to the Moxa switch. Each IP address and netmask entry can be
tailored for different situations:
•
Grant access to one host with a specific IP address
For example, enter IP address 192.168.1.1 with netmask 255.255.255.255 to allow access to 192.168.1.1
only.
•
Grant access to any host on a specific subnetwork
For example, enter IP address 192.168.1.0 with netmask 255.255.255.0 to allow access to all IPs on the
subnet defined by this IP address/subnet mask combination.
•
Grant access to all hosts
Make sure the accessible IP list is not enabled. Remove the checkmark from Enable the accessible IP
list.
The following table shows additional configuration examples:
Hosts That Need Access
Input Format
Any host
Disable
192.168.1.120
192.168.1.120 / 255.255.255.255
192.168.1.1 to 192.168.1.254
192.168.1.0 / 255.255.255.0
192.168.0.1 to 192.168.255.254
192.168.0.0 / 255.255.0.0
192.168.1.1 to 192.168.1.126
192.168.1.0 / 255.255.255.128
192.168.1.129 to 192.168.1.254
192.168.1.128 / 255.255.255.128
3-4
Moxa Managed Ethernet Switches
Featured Functions
Port Settings
Port settings are included to give the user control over port access, port transmission speed, flow control, and
port type (MDI or MDIX).
Enable
Setting
Description
Factory Default
Checked
Allows data transmission through the port.
Enabled
Unchecked
Immediately shuts off port access.
ATTENTION
If a connected device or sub-network is wreaking havoc on the rest of the network, the Disable option under
Advanced Settings/Port gives the administrator a quick way to shut off access through this port
immediately.
Description
Setting
Description
Factory Default
Media type
Displays the media type for each module’s port
N/A
Setting
Description
Factory Default
Max. 63 characters
Specifies an alias for the port to help administrators
None
Name
differentiate between different ports. Example: PLC 1
Speed
Setting
Description
Factory Default
Allows the port to use the IEEE 802.3u protocol to negotiate
Auto
with connected devices. The port and connected devices will
determine the best speed for that connection.
1G-Full
100M-Full
100M-Half
10M-Full
Auto
Choose one of these fixed speed options if the connected
Ethernet device has trouble auto-negotiating for line speed.
10M-Half
3-5
Moxa Managed Ethernet Switches
Featured Functions
FDX Flow Ctrl
This setting enables or disables flow control for the port when the port’s Speed is set to Auto. The final result
will be determined by the Auto process between the Moxa switch and connected devices.
Setting
Enable
Disable
Description
Factory Default
Enables flow control for this port when the port’s Speed
is set to Auto.
Disables flow control for this port when the port’s Speed
Disable
is set to Auto.
MDI/MDIX
Setting
Auto
Description
Factory Default
Allows the port to auto-detect the port type of the connected
Ethernet device and change the port type accordingly.
MDI
Choose MDI or MDIX if the connected Ethernet device has
MDIX
trouble auto-negotiating for port type.
Auto
Network Parameters
Network configuration allows users to configure both IPv4 and IPv6 parameters for management access over
the network. The Moxa switch supports both IPv4 and IPv6, and can be managed through either of these
address types.
A brief explanation of each configuration item is given below.
IP4
The IPv4 settings include the switch’s IP address and subnet mask, as well as the IP address of the default
gateway. In addition, input cells are provided for the IP addresses of a 1st and 2nd DNS server.
Auto IP Configuration
Setting
Description
Factory Default
Disable
The Moxa switch’s IP address must be set manually.
Disable
By DHCP
The Moxa switch’s IP address will be assigned automatically by
the network’s DHCP server.
By BootP
The Moxa switch’s IP address will be assigned automatically by
the network’s BootP server.
3-6
Moxa Managed Ethernet Switches
Featured Functions
Switch IP Address
Setting
Description
Factory Default
IP address for the Moxa Assigns the Moxa switch’s IP address on a TCP/IP network.
192.168.127.253
switch
Switch Subnet Mask
Setting
Description
Subnet mask for the
Identifies the type of network the Moxa switch is connected to 255.255.255.0
Factory Default
Moxa switch
(e.g., 255.255.0.0 for a Class B network, or 255.255.255.0 for
a Class C network).
Default Gateway
Setting
Description
Factory Default
IP address for gateway Specifies the IP address of the router that connects the LAN to None
an outside network.
DNS IP Address
Setting
Description
Factory Default
IP address for DNS
Specifies the IP address of the DNS server used by your
None
server
network. After specifying the DNS server’s IP address, you can
use the Moxa switch’s URL (e.g., www.PT.company.com) to
open the web console instead of entering the IP address.
IP address for 2nd DNS Specifies the IP address of the secondary DNS server used by
server
None
your network. The Moxa switch will use the secondary DNS
server if the first DNS server fails to connect.
IP6
The IPv6 settings include two distinct address types—Link-Local Unicast addresses and Global Unicast
addresses. A Link-Local address makes the switch accessible over IPv6 for all devices attached to the same
local subnet. To connect to a larger network with multiple segments, the switch must be configured with a
Global Unicast address.
Global Unicast Address Prefix (Prefix Length: 64 bits) Default Gateway
Setting
Description
Global Unicast Address
The prefix value must be formatted according to the RFC 2373 None
Factory Default
Prefix
“IPv6 Addressing Architecture,” using 8 colon-separated 16-bit
hexadecimal values. One double colon may be used in the
address to indicate the appropriate number of zeros required to
fill the undefined fields.
Global Unicast Address
Setting
Description
None
Displays the IPv6 Global Unicast address. The network portion None
Factory Default
of the Global Unicast address can be configured by specifying
the Global Unicast Prefix and using an EUI-64 interface ID in the
low order 64 bits. The host portion of the Global Unicast address
is automatically generated using the modified EUI-64 form of
the interface identifier (Switch’s MAC address).
Link-Local Address
Setting
Description
None
The network portion of the Link-Local address is FE80 and the None
Factory Default
host portion of the Link-Local address is automatically
generated using the modified EUI-64 form of the interface
identifier (Switch’s MAC address)
3-7
Moxa Managed Ethernet Switches
Featured Functions
Neighbor Cache
Setting
Description
Factory Default
None
The information in the neighbor cache that includes the
None
neighboring node’s IPv6 address, the corresponding Link-Layer
address, and the current state of the entry.
System Time Settings
The Moxa switch has a time calibration function based on information from an NTP server or user specified time
and date. Functions such as automatic warning emails can therefore include time and date stamp.
NOTE
The Moxa switch does not have a real time clock. The user must update the Current Time and Current Date
to set the initial time for the Moxa switch after each reboot, especially when there is no NTP server on the LAN
or Internet connection.
Current Time
Setting
Description
Factory Default
User-specified time
Allows configuration of the local time in local 24-hour format.
None
Setting
Description
Factory Default
User-specified date
Allows configuration of the local date in yyyy-mm-dd format.
None
Current Date
Daylight Saving Time
The Daylight Saving Time settings are used to automatically set the Moxa switch’s time forward according to
national standards.
Start Date
Setting
Description
Factory Default
User-specified date
Specifies the date that Daylight Saving Time begins.
None
Setting
Description
Factory Default
User-specified date
Specifies the date that Daylight Saving Time ends.
None
End Date
3-8
Moxa Managed Ethernet Switches
Featured Functions
Offset
Setting
Description
Factory Default
User-specified hour
Specifies the number of hours that the time should be set
None
forward during Daylight Saving Time.
System Up Time
Indicates how long the Moxa switch remained up since the last cold start. The up time is indicated in seconds.
Time Zone
NOTE
Setting
Description
Factory Default
Time zone
Specifies the time zone, which is used to determine the local
GMT (Greenwich
time offset from GMT (Greenwich Mean Time).
Mean Time)
Changing the time zone will automatically correct the current time. Be sure to set the time zone before setting
the time.
Time Server IP/Name
Setting
Description
Factory Default
IP address or name of
The IP or domain address (e.g., 192.168.1.1,
None
time server
time.stdtime.gov.tw, or time.nist.gov).
IP address or name of
The Moxa switch will try to locate the secondary NTP server if
secondary time server
the first NTP server fails to connect.
Enable NTP/SNTP Server
Setting
Description
Factory Default
Enable/Disable
Enables SNTP/NTP server functionality for clients
Disabled
IEEE 1588 PTP
The following information is taken from the NIST website at http: //ieee1588.nist.gov/intro.htm:
“Time measurement can be accomplished using the IEEE Standard for a Precision Clock Synchronization
Protocol for Networked Measurement and Control Systems (IEEE 1588-2008) to synchronize real-time clocks
incorporated within each component of the electrical power system for power automation applications.
IEEE 1588, which was published in November 2002, expands the performance capabilities of Ethernet networks
to control systems that operate over a communication network. In recent years an increasing number of
electrical power systems have been using a more distributed architecture with network technologies that have
less stringent timing specifications. IEEE 1588 generates a master-slave relationship between the clocks, and
enforces the specific timing requirements in such power systems. All devices ultimately get their time from a
clock known as the grandmaster clock. In its basic form, the protocol is intended to be administration free.”
How does an Ethernet Switch Affect 1588 Synchronization?
The following content is taken from the NIST website at http: //ieee1588.nist.gov/switch.htm:
“An Ethernet switch potentially introduces multi-microsecond fluctuations in the latency between the 1588
grandmaster clock and a 1588 slave clock. Uncorrected these fluctuations will cause synchronization errors.
The magnitude of these fluctuations depend on the design of the Ethernet switch and the details of the
communication traffic. Experiments with prototype implementations of IEEE 1588 indicate that with suitable
care the effect of these fluctuations can be successfully managed. For example, use of appropriate statistics in
the 1588 devices to recognized significant fluctuations and use suitable averaging techniques in the algorithms
controlling the correction of the local 1588 clock will be the good design means to achieve the highest time
accuracy.”
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Moxa Managed Ethernet Switches
Featured Functions
Can Ethernet switches be designed to avoid the effects of these
fluctuations?
A switch can be designed to support IEEE 1588 while avoiding the effects of queuing. In this case two
modifications to the usual design of an Ethernet switch are necessary:
1. The Boundary Clock and Transparent Clock functionalities defined by IEEE 1588 must be implemented
in the switch.
2. The switch must be configured such that it does not pass IEEE 1588 message traffic using the normal
communication mechanisms of the switch.
Such an Ethernet switch will synchronize clocks directly connected to one of its ports to the highest possible
accuracy.
NOTE
If the CM-600-4TX-PTP module is not installed, then the EDS-600 only supports software-based IEEE 1588.
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Moxa Managed Ethernet Switches
Featured Functions
Configuring PTP
3-11
Moxa Managed Ethernet Switches
Featured Functions
IEEE 1588/PTP Operation
Operation
Setting
Description
Factory Default
Enable PTP
Globally disables or enables IEEE 1588 operation.
Disabled
IEEE 1588/PTP Configuration
Clock Mode (sets the switch’s clock mode)
Setting
Description
Factory Default
v1 BC
Operates as an IEEE 1588 v1 boundary clock.
v1 BC
v2 E2E 2-step TC
Operates as an edge-to-edge IEEE 1588 v2 transparent clock
with 2-step method.
v2 E2E 1-step TC
Operates as an edge-to-edge IEEE 1588 v2 transparent clock
v2 P2P 2-step TC
Operates as a peer-to-peer IEEE 1588 v2 transparent clock
with 1-step method.
with 1-step method.
v2 E2E BC
Operates as an edge-to-edge IEEE 1588 v2 boundary clock
v2 P2P BC
Operates as a peer-to-peer IEEE 1588 v2 boundary clock
logSyncInterval (sets the synchronization message time interval)
Setting
Description
Factory Default
0, 1, 2, 3, or 4
0 (1 s), 1 (2 s), 2 (4 s), 3 (8 s), or 4 (16 s). Supported in IEEE 0
1588 V1.
-3, -2, -1, 0, or 1
-3 (128 ms), -2 (256 ms), -1 (512 ms), 0 (1 s), or 1 (2 s).
Supported in IEEE 1588 V2.
logAnnounceInterval (sets the announce message interval)
Setting
Description
Factory Default
0, 1, 2, 3, or 4
0 (1 s), 1 (2 s), 2 (4 s), 3 (8 s), or 4 (16 s)
1 (2 s)
announceReceiptTimeout
Setting
Description
Factory Default
2, 3, 4, 5, 6, 7, 8, 9, or The multiple of announce message receipt timeout by the
10
3
announce message interval.
logMinDelayReqInterval
Setting
Description
Factory Default
0, 1, 2, 3, 4, or 5
Minimum delay request message interval
0 (1 sec.)
logMinPdelayReqInterval
Setting
Description
Factory Default
1, 0, 1, 2, 3, or 4
Minimal delay request message interval:
0 (1 sec)
-1 (512 ms), 0 (1 s), 1 (2 s), 2 (4 s), 3 (8 s), or 4 (32 s)
(Available in Clock Mode: v2 P2P 2-step TC, and v2 P2P BC)
Domain Number
Setting
Description
Factory Default
_DFLT (0), _ALT(1),
Subdomain name (IEEE 1588-2002) or the domain Number
_DFLT (0)
_ALT(2), or _ALT(3)
(IEEE 1588-2008) fields in PTP messages
Transport of PTP (transport protocol of an IEEE 1588 PTP message)
Setting
Description
IPv4 or 802.3/Ethernet •
•
Factory Default
IEEE 1588 PTP V1 supports IPv4 only
IEEE 1588 PTP V2 supports both IPv4 and IPv6.
3-12
IPv4
Moxa Managed Ethernet Switches
Featured Functions
Preferred Master
Setting
Description
Factory Default
True or False
Set this switch to be the Grand Master.
False
Setting
Description
Factory Default
0 to 255
Set first priority value; 0 = highest priority, 255 = lowest
128
priority1
priority.
priority2
Setting
Description
Factory Default
0 to 255
Set second priority value; 0 = highest priority, 255 = lowest
128
priority.
clockClass
Setting
Description
Factory Default
0 to 255
The clockClass attribute denotes the traceability of the time or 248
frequency distributed by the grandmaster clock.
clockAccuracy
Setting
Description
0x21
The clockAccuracy characterizes a clock for the purpose of the 0x21
Factory Default
best master clock (BMC) algorithm. This value is fixed at 0x21,
which means the time of the EDS switch is accurate to within
100 ns.
Timescale
Setting
Description
Factory Default
PTP or ARB
•
PTP
PTP timescale: In normal operation, the epoch is the PTP
epoch and the timescale is continuous. The time unit is SI
seconds, as realized on the rotating geoid (SI: International
System).
•
ARB timescale: In normal operation, the epoch is set by an
administrative procedure. The epoch can be reset during
normal operation. Between invocations of the
administrative procedure, the timescale is continuous.
Additional invocations of the administrative procedure may
introduce discontinuities in the overall timescale.
ARB Time
Setting
Description
Factory Default
0 to 255
The geoid of the PTP clock reference time (seconds).
0
Setting
Description
Factory Default
True or False
The last minute of the current UTC day contains 59 seconds. If False
Leap59
the epoch is not PTP, the value will be set to FALSE.
Leap61
Setting
Description
True or False
The last minute of the current UTC day contains 61 seconds. If False
Factory Default
the epoch is not PTP, the value will be set to FALSE.
UTC Offset Valid
Setting
Description
True or False
The initialization value will be TRUE if the value of the current False
Factory Default
UTC offset is known to be correct; otherwise, it will be FALSE.
3-13
Moxa Managed Ethernet Switches
Featured Functions
UTC Offset
Setting
Description
Factory Default
0 to 255
The known UTC offset (seconds).
0
Setting
Description
Factory Default
N/A
Shows the current IEEE 1588 PTP status.
N/A
Status
PTP Port Settings
Shows the switch’s current PTP port settings.
System File Update
Update System Files by Remote TFTP
The Moxa switch supports saving your configuration or log file to a remote TFTP server or local host. Other
Moxa switch switches can also load the configuration at a later time. The Moxa switch also supports loading
firmware or configuration files from the TFTP server or a local host.
TFTP Server IP/Name
Setting
Description
Factory Default
IP address of TFTP
Specifies the IP address or name of the remote TFTP server.
None
server
Must be specified before downloading or uploading files.
Configuration Files Path and Name
Setting
Description
Factory Default
Max. 40 characters
Specifies the path and file name of the Moxa switch’s
None
configuration file on the TFTP server.
Firmware Files Path and Name
Setting
Description
Factory Default
Max. 40 characters
Specifies the path and file name of the Moxa switch’s firmware None
file.
Log Files Path and Name
Setting
Description
Factory Default
Max. 40 characters
Specifies the path and file name of the Moxa switch’s log file.
None
After setting the desired paths and file names, click Download to download the prepared file from the remote
TFTP server, or click Upload to upload the desired file to the remote TFTP server.
3-14
Moxa Managed Ethernet Switches
Featured Functions
Update System Files from Local PC
Configuration File
Click Export to save the Moxa switch’s configuration file to the local host.
Log File
Click Export to save the Moxa switch’s log file to the local host.
NOTE
Some operating systems will open the configuration file and log file directly in the web page. In such cases,
right click the Export button to save the file.
Upgrade Firmware
To import a new firmware file into the Moxa switch, click Browse to select the firmware file that is saved on
your computer. The upgrade procedure will proceed automatically after clicking Import.
Upload Configure Data
To import a configuration file into the Moxa switch, click Browse to select the configuration file already saved
on your computer. The upgrade procedure will proceed automatically after clicking Import.
ABC (Auto-Backup Configurator) Configuration
You can use Moxa’s Automatic Backup Configurator to save and load the Moxa switch’s configurations through
the switch’s RS-232 console port.
3-15
Moxa Managed Ethernet Switches
Featured Functions
Restart
This function provides users with a quick way to restart the system.
Reset to Factory Default
This function provides users with a quick way of restoring the Moxa switch’s configuration to factory defaults.
The function is available in the serial, Telnet, and web consoles.
NOTE
After restoring the factory default configuration, you will need to use the default network settings to
re-establish the web or Telnet console connection with the Moxa switch.
Using Port Trunking
Link aggregation involves grouping links into a link aggregation group. A MAC client can treat link aggregation
groups as if they were a single link.
The Moxa switch’s port trunking feature allows devices to communicate by aggregating up to 4 trunk groups,
with a maximum of 8 ports for each group. If one of the 8 ports fails, the other seven ports will automatically
provide backup and share the traffic.
Port trunking can be used to combine up to 8 ports between two Moxa switches. If all ports on both switches
are configured as 100BaseTX and they are operating in full duplex, the potential bandwidth of the connection
will be 1600 Mbps.
The Port Trunking Concept
Moxa has developed a port trunking protocol that provides the following benefits:
•
Greater flexibility in setting up your network connections, since the bandwidth of a link can be doubled,
•
Redundancy—if one link is broken, the remaining trunked ports share the traffic within this trunk group.
•
Load sharing—MAC client traffic can be distributed across multiple links.
tripled, or quadrupled.
3-16
Moxa Managed Ethernet Switches
Featured Functions
To avoid broadcast storms or loops in your network while configuring a trunk, first disable or disconnect all
ports that you want to add to the trunk or remove from the trunk. After you finish configuring the trunk, enable
or re-connect the ports.
If all ports on both switch units are configured as 100BaseTX and they are operating in full duplex mode, the
potential bandwidth of the connection will be up to 1.6 Gbps. This means that users can double, triple, or
quadruple the bandwidth of the connection by port trunking between two Moxa switches.
Each Moxa switch can set a maximum of 3 port trunking groups. When you activate port trunking, certain
settings on each port will be reset to factory default values or disabled:
•
Communication redundancy will be reset
•
802.1Q VLAN will be reset
•
Multicast Filtering will be reset
•
Port Lock will be reset and disabled.
•
Set Device IP will be reset
•
Mirror will be reset
After port trunking has been activated, you can configure these items again for each trunking port.
Port Trunking Settings
The Port Trunking Settings page is where ports are assigned to a trunk group.
Step 1:
Select the desired Trunk Group
Step 2:
Select the Trunk Type (Static or LACP).
Step 3:
Select the desired ports under Available Ports and click Up to add to the Trunk Group.
Step 4:
Select the desired ports under Member Ports and click Down to remove from the group.
Trunk Group (maximum of 4 trunk groups)
Setting
Description
Factory Default
Trk1, Trk2, Trk3, Trk4
Specifies the current trunk group.
Trk1
(depends on switching
chip capability; some
Moxa switches only
support 3 trunk
groups)
3-17
Moxa Managed Ethernet Switches
Featured Functions
Trunk Type
Setting
Description
Factory Default
Static
Selects Moxa’s proprietary trunking protocol.
Static
LACP
Selects LACP (IEEE 802.3ad, Link Aggregation Control
Static
Protocol).
Available Ports/Member Ports
Setting
Description
Factory Default
Member/available ports Lists the ports in the current trunk group and the ports that are N/A
available to be added.
Check box
Selects the port to be added or removed from the group.
Unchecked
Port
How each port is identified.
N/A
Port description
Displays the media type for each port.
N/A
Name
Displays the specified name for each port.
N/A
Speed
Indicates the transmission speed for each port (100M-Full,
N/A
100M-Half, 10M-Full, or 10M-Half).
FDX flow control
Indicates if the FDX flow control of this port is enabled or
N/A
disabled.
Up
Add selected ports into the trunk group from available ports.
N/A
Down
Remove selected ports from the trunk group.
N/A
Trunk Table
Setting
Description
Trunk group
Displays the trunk type and trunk group.
Member port
Displays the member ports that belong to the trunk group.
Status
•
Success means port trunking is working properly.
•
Fail means port trunking is not working properly.
•
Standby means port trunking is working as a standby port. When there are
more than eight ports trunked as a trunking group, the 9th port will be the
standby port.
Configuring SNMP
The Moxa switch supports SNMP V1, V2c, and V3. SNMP V1 and SNMP V2c use a community string match for
authentication, which means that SNMP servers access all objects with read-only or read/write permissions
using the community strings public and private by default. SNMP V3 requires that you select an authentication
level of MD5 or SHA, and is the most secure protocol. You can also enable data encryption to enhance data
security.
Supported SNMP security modes and levels are shown in the following table. Select the security mode and level
that will be used to communicate between the SNMP agent and manager.
3-18
Moxa Managed Ethernet Switches
Protocol
UI Setting
Authentication
Featured Functions
Encryption
Method
No
Uses a community string match for
Version
SNMP V1,
V1, V2c Read Community string
V2c
Community
V1, V2c
authentication.
Community string
No
Write/Read
Uses a community string match for
authentication.
Community
SNMP V3
No-Auth
No
No
MD5 or SHA
Authentication
No
Uses an account with admin or user to access
objects
Provides authentication based on HMAC-MD5,
based on MD5 or
or HMAC-SHA algorithms. 8-character
SHA
passwords are the minimum requirement for
authentication.
MD5 or SHA
Authentication
Data
Provides authentication based on HMAC-MD5
based on MD5 or
encryption
or HMAC-SHA algorithms, and data encryption
SHA
key
key. 8-character passwords and a data
encryption key are the minimum requirements
for authentication .and encryption.
These parameters are configured on the SNMP page. A more detailed explanation of each parameter is given
below the figure.
3-19
Moxa Managed Ethernet Switches
Featured Functions
SNMP Read/Write Settings
SNMP Versions
Setting
Description
Factory Default
V1, V2c, V3, or
Specifies the SNMP protocol version used to manage the switch. V1, V2c
V1, V2c, or
V3 only
V1, V2c Read Community
Setting
Description
Max. 30 characters
Specifies the community string to authenticate the SNMP agent Public
Factory Default
for read-only access. The SNMP agent will access all objects
with read-only permissions using this community string.
V1, V2c Write/Read Community
Setting
Description
Max. 30 characters
Specifies the community string to authenticate the SNMP agent Private
Factory Default
for read/write access. The SNMP server will access all objects
with read/write permissions using this community string.
For SNMP V3, two levels of privilege are available accessing the Moxa switch. Admin privilege provides access
and authorization to read and write the MIB file. User privilege allows reading of the MIB file only.
Admin Auth. Type (for SNMP V1, V2c, V3, and V3 only)
Setting
Description
Factory Default
No-Auth
Allows the admin account to access objects without
No
MD5-
Authentication will be based on the HMAC-MD5 algorithms.
Auth
8-character passwords are the minimum requirement for
authentication.
No
authentication.
SHA-
Authentication will be based on the HMAC-SHA algorithms.
Auth
8-character passwords are the minimum requirement for
No
authentication.
Admin Data Encryption Key (for SNMP V1, V2c, V3, and V3 only)
Setting
Description
Enable
Enables data encryption using the specified data encryption key No
Factory Default
(between 8 and 30 characters).
Disable
Specifies that data will not be encrypted.
No
User Auth. Type (for SNMP V1, V2c, V3 and V3 only)
Setting
Description
Factory Default
No-Auth
Allows the admin account and user account to access objects
No
without authentication.
MD5-Auth
Authentication will be based on the HMAC-MD5 algorithms.
No
8-character passwords are the minimum requirement for
authentication.
SHA-Auth
Authentication will be based on the HMAC-SHA algorithms.
No
8-character passwords are the minimum requirement for
authentication.
User Data Encryption Key (for SNMP V1, V2c, V3 and V3 only)
Setting
Description
Factory Default
Enable
Enables data encryption using the specified data encryption key No
Disable
No data encryption
(between 8 and 30 characters).
No
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Moxa Managed Ethernet Switches
Featured Functions
Trap Settings
SNMP traps allow an SNMP agent to notify the NMS of a significant event. The switch supports two SNMP modes,
Trap mode and Inform mode.
SNMP Trap Mode—Trap
In Trap mode, the SNMP agent sends an SNMPv1 trap PDU to the NMS. No acknowledgment is sent back from
the NMS so the agent has no way of knowing if the trap reached the NMS.
SNMP Trap Mode—Inform
SNMPv2 provides an inform mechanism. When an inform message is sent from the SNMP agent to the NMS, the
receiver sends a response to the sender acknowledging receipt of the event. This behavior is similar to that of
the get and set requests. If the SNMP agent does not receive a response from the NMS for a period of time, the
agent will resend the trap to the NMS agent. The maximum timeout time is 300 sec (default is 1 sec), and the
maximum number of retries is 99 times (default is 1 time). When the SNMP agent receives acknowledgement
from the NMS, it will stop resending the inform messages.
1st Trap Server IP/Name
Setting
Description
Factory Default
IP or name
Specifies the IP address or name of the primary trap server
None
used by your network.
1st Trap Community
Setting
Description
Factory Default
Max. 30 characters
Specifies the community string to use for authentication.
Public
2nd Trap Server IP/Name
Setting
Description
Factory Default
IP or name
Specifies the IP address or name of the secondary trap server
None
used by your network.
2nd Trap Community
Setting
Description
Factory Default
Max. 30 characters
Specifies the community string to use for authentication.
Public
Private MIB Information
Switch Object ID
Setting
Description
Factory Default
Specific Moxa Switch ID Indicates the Moxa switch’s enterprise value.
NOTE: The Switch Object ID cannot be changed.
3-21
.8691.7.47
Moxa Managed Ethernet Switches
Featured Functions
Using PoE (PoE Models Only)
Power over Ethernet has become increasingly popular due in large part to the reliability provided by PoE
Ethernet switches that supply the necessary power to Powered Devices (PD) when AC power is not readily
available or cost-prohibitive to provide locally.
Power over Ethernet can be used with:
•
Surveillance cameras
•
Security I/O sensors
•
Industrial wireless access points
•
Emergency IP phones
In fact, it’s not uncommon for video, voice, and high-rate industrial application data transfers to be integrated
into one network. Moxa’s PoE switches are equipped with many advanced PoE management functions,
providing vital security systems with a convenient and reliable Ethernet network. Moreover, Moxa’s advanced
PoE switches support the high power PoE+ standard, 24 VDC direct power input, and 20 ms fast recovery
redundancy, Turbo Ring and Turbo Chain.
PoE Setting
The settings are included to give the user control over the system’s PoE power budget, PoE port access, PoE
port power limit and PD failure check.
An explanation of each configuration item follows:
PoE Power Budget
Indicates the PoE power that can be supplied by the system.
Setting
Description
Factory Default
Auto
Allows users to set the actual Power Limit value by each
Auto
individual PoE port.
Manual
The user can set the power limit value that indicates the power
supplied by the system.
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Moxa Managed Ethernet Switches
Featured Functions
Port Setting
Enable
Setting
Description
Factory Default
Checked
Allows data and power transmission through the port
Enable
Unchecked
Immediately shuts off port access
Enable
Setting
Description
Factory Default
Auto
The amount of power assigned is determined according to the Auto
Power Limit
class that is read from the powered device.
Manual
The user can set the power limit value that indicates the
Auto
maximum amount of power available to the port.
The EDS-P506A-4PoE can monitor PD working status via its IP conditions. If the PD fails, the switch will not
receive a PD response after the defined period, and the authentication process is restarted. This is an excellent
function to ensure your network reliability and reduce management burden.
PD Failure Check
Setting
Description
Factory Default
Checked
Enables the PD Failure Check function.
Auto
Unchecked
Disables the PD Failure Check function.
Auto
Setting
Description
Factory Default
Max. 15 Characters
Enter the IP for the PD
None
IP
Period
Setting
Description
Factory Default
Max. 5 Characters
Enter the time span for IP checking period
None
PoE Timetabling
Powered devices usually do not need to be running 24 hours a
day, 7days a week. The EDS-P506A-4PoE provides a PoE
timetabling mechanism to let users set a flexible working
schedule for each PoE port to economize the system’s power
burden.
Port
Setting
Description
Factory Default
Port
Enable a dedicated port
Port 1
Enable
Setting
Description
Factory Default
Checked
Enables the port for a defined time period
Disable
Unchecked
Disables the port for a defined time period
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Moxa Managed Ethernet Switches
Featured Functions
Weekly Timetabling
Day
Setting
Description
Factory Default
Checked
Enables the port for a defined number of days
Disable
Unchecked
Disables the port for a defined number of days
Start/End Time
Setting
Description
Factory Default
Time for working period Allows users to enter the start and end time for the PD’s
0-24
working period
PoE Status
Item
Description
Enable/Disable
Indicates the PoE port status
Consumption (W)
Indicates the actual Power consumed value for PoE port
Voltage (V)
Indicates the actual Voltage consumed value for PoE port
Current (mA)
Indicates the actual Current consumed value for PoE port
PoE Email Warning Events Settings
Since industrial Ethernet devices are often located at the endpoints of a system, these devices do not always
know what is happening elsewhere on the network. This means that a PoE port connected to a PD must provide
system administrators with real-time alarm messages. Even when control engineers are out of the control room
for an extended period of time, they can still be informed of the status of the PD almost instantaneously when
exceptions occur. The EDS-P506A-4PoE supports different methods for warning engineers automatically, such
as email and relay output. It also supports two digital inputs to integrate sensors into your system to automate
alarms using email and relay output.
Email Warning Event Types can be divided into two basic groups: Power-Fail and PD-Failure.
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Moxa Managed Ethernet Switches
Featured Functions
Port Events
Warming e-mail is sent when...
Power-Fail
When actual PD power consumption exceeds related PD power limit setting.
PD-Failure
When the switch cannot receive a PD response after the defined period.
PoE Relay Warning Events Settings
Relay Warning Event Types can be divided into two basic groups: Power-Fail and PD-Failure.
Port Events
Warming e-mail is sent when...
Power-Fail
When actual PD power consumption exceeds related PD power limit settings.
PD-Failure
When the switch cannot receive a PD response after the defined period.
Using Traffic Prioritization
The Moxa switch’s traffic prioritization capability provides Quality of Service (QoS) to your network by making
data delivery more reliable. You can prioritize traffic on your network to ensure that high priority data is
transmitted with minimum delay. Traffic can be controlled by a set of rules to obtain the required Quality of
Service for your network. The rules define different types of traffic and specify how each type should be treated
as it passes through the switch. The Moxa switch can inspect both IEEE 802.1p/1Q layer 2 CoS tags, and even
layer 3 TOS information to provide consistent classification of the entire network. The Moxa switch’s QoS
capability improves the performance and determinism of industrial networks for mission critical applications.
The Traffic Prioritization Concept
Traffic prioritization allows you to prioritize data so that time-sensitive and system-critical data can be
transferred smoothly and with minimal delay over a network. The benefits of using traffic prioritization are:
•
Improve network performance by controlling a wide variety of traffic and managing congestion.
•
Assign priorities to different categories of traffic. For example, set higher priorities for time-critical or
business-critical applications.
•
Provide predictable throughput for multimedia applications, such as video conferencing or voice over IP,
and minimize traffic delay and jitter.
•
Improve network performance as the amount of traffic grows. Doing so will reduce costs since it will not be
necessary to keep adding bandwidth to the network.
Traffic prioritization uses the four traffic queues that are present in your Moxa switch to ensure that high
priority traffic is forwarded on a different queue from lower priority traffic. Traffic prioritization provides Quality
of Service (QoS) to your network.
Moxa switch traffic prioritization depends on two industry-standard methods:
•
IEEE 802.1D—a layer 2 marking scheme.
•
Differentiated Services (DiffServ)—a layer 3 marking scheme.
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Moxa Managed Ethernet Switches
Featured Functions
IEEE 802.1D Traffic Marking
The IEEE Std 802.1D, 1998 Edition marking scheme, which is an enhancement to IEEE Std 802.1D, enables
Quality of Service on the LAN. Traffic service levels are defined in the IEEE 802.1Q 4-byte tag, which is used to
carry VLAN identification as well as IEEE 802.1p priority information. The 4-byte tag immediately follows the
destination MAC address and Source MAC address.
The IEEE Std 802.1D, 1998 Edition priority marking scheme assigns an IEEE 802.1p priority level between 0
and 7 to each frame. The priority marking scheme determines the level of service that this type of traffic should
receive. Refer to the table below for an example of how different traffic types can be mapped to the eight IEEE
802.1p priority levels.
IEEE 802.1p Priority Level
IEEE 802.1D Traffic Type
0
Best Effort (default)
1
Background
2
Standard (spare)
3
Excellent Effort (business critical)
4
Controlled Load (streaming multimedia)
5
Video (interactive media); less than 100 milliseconds of latency and jitter
6
Voice (interactive voice); less than 10 milliseconds of latency and jitter
7
Network Control Reserved traffic
Even though the IEEE 802.1D standard is the most widely used prioritization scheme in the LAN environment,
it still has some restrictions:
•
It requires an additional 4-byte tag in the frame, which is normally optional for Ethernet networks. Without
this tag, the scheme cannot work.
•
The tag is part of the IEEE 802.1Q header, so to implement QoS at layer 2, the entire network must
•
It is only supported on a LAN and not across routed WAN links, since the IEEE 802.1Q tags are removed
implement IEEE 802.1Q VLAN tagging.
when the packets pass through a router.
Differentiated Services (DiffServ) Traffic Marking
DiffServ is a Layer 3 marking scheme that uses the DiffServ Code Point (DSCP) field in the IP header to store
the packet priority information. DSCP is an advanced intelligent method of traffic marking that allows you to
choose how your network prioritizes different types of traffic. DSCP uses 64 values that map to user-defined
service levels, allowing you to establish more control over network traffic.
The advantages of DiffServ over IEEE 802.1D are:
•
You can configure how you want your switch to treat selected applications and types of traffic by assigning
•
No extra tags are required in the packet.
•
DSCP uses the IP header of a packet to preserve priority across the Internet.
•
DSCP is backwards compatible with IPV4 TOS, which allows operation with existing devices that use a layer
various grades of network service to them.
3 TOS enabled prioritization scheme.
Traffic Prioritization
Moxa switches classify traffic based on layer 2 of the OSI 7 layer model, and the switch prioritizes received
traffic according to the priority information defined in the received packet. Incoming traffic is classified based
upon the IEEE 802.1D frame and is assigned to the appropriate priority queue based on the IEEE 802.1p service
level value defined in that packet. Service level markings (values) are defined in the IEEE 802.1Q 4-byte tag,
and consequently traffic will only contain 802.1p priority markings if the network is configured with VLANs and
VLAN tagging. The traffic flow through the switch is as follows:
•
A packet received by the Moxa switch may or may not have an 802.1p tag associated with it. If it does not,
then it is given a default 802.1p tag (which is usually 0). Alternatively, the packet may be marked with a
new 802.1p value, which will result in all knowledge of the old 802.1p tag being lost.
•
Because the 802.1p priority levels are fixed to the traffic queues, the packet will be placed in the
appropriate priority queue, ready for transmission through the appropriate egress port. When the packet
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reaches the head of its queue and is about to be transmitted, the device determines whether or not the
egress port is tagged for that VLAN. If it is, then the new 802.1p tag is used in the extended 802.1D header.
•
The Moxa switch will check a packet received at the ingress port for IEEE 802.1D traffic classification, and
then prioritize it based on the IEEE 802.1p value (service levels) in that tag. It is this 802.1p value that
determines which traffic queue the packet is mapped to.
Traffic Queues
The hardware of Moxa switches has multiple traffic queues that allow packet prioritization to occur. Higher
priority traffic can pass through the Moxa switch without being delayed by lower priority traffic. As each packet
arrives in the Moxa switch, it passes through any ingress processing (which includes classification,
marking/re-marking), and is then sorted into the appropriate queue. The switch then forwards packets from
each queue.
Moxa switches support two different queuing mechanisms:
•
Weight Fair: This method services all the traffic queues, giving priority to the higher priority queues.
Under most circumstances, the Weight Fair method gives high priority precedence over low priority, but in
the event that high priority traffic does not reach the link capacity, lower priority traffic is not blocked.
•
Strict: This method services high traffic queues first; low priority queues are delayed until no more high
priority data needs to be sent. The Strict method always gives precedence to high priority over low priority.
Configuring Traffic Prioritization
Quality of Service (QoS) provides a traffic prioritization capability to ensure that important data is delivered
consistently and predictably. The Moxa switch can inspect IEEE 802.1p/1Q layer 2 CoS tags, and even layer 3
TOS information, to provide a consistent classification of the entire network. The Moxa switch’s QoS capability
improves your industrial network’s performance and determinism for mission critical applications.
QoS Classification
The Moxa switch supports inspection of layer 3 TOS and/or layer 2 CoS tag information to determine how to
classify traffic packets.
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Queuing Mechanism
Setting
Description
Factory Default
Weight Fair
The Moxa switch has 4 priority queues. In the weight fair
Weight Fair
scheme, an 8, 4, 2, 1 weighting is applied to the four priorities.
This approach prevents the lower priority frames from being
starved of opportunity for transmission with only a slight delay
to the higher priority frames.
Strict
In the Strict-priority scheme, all top-priority frames egress a
port until that priority’s queue is empty, and then the next
lower priority queue’s frames egress. This approach can cause
the lower priorities to be starved of opportunity for transmitting
any frames but ensures that all high priority frames will egress
the switch as soon as possible.
Inspect TOS
Setting
Enable/Disable
Description
Factory Default
Enables or disables the Moxa switch for inspecting Type of
Enable
Service (TOS) bits in the IPV4 frame to determine the priority of
each frame.
Inspect COS
Setting
Description
Factory Default
Enable/Disable
Enables or disables the Moxa switch for inspecting 802.1p COS Enable
tags in the MAC frame to determine the priority of each frame.
NOTE
The priority of an ingress frame is determined in the following order:
1. Inspect TOS
2. Inspect CoS
3. Port Highest Priority
NOTE
The designer can enable these classifications individually or in combination. For instance, if a “hot” higher
priority port is required for a network design, Inspect TOS and Inspect CoS can be disabled. This setting
leaves only port default priority active, which results in all ingress frames being assigned the same priority on
that port.
CoS Mapping
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CoS Value and Priority Queues
Setting
Description
Factory Default
Low/Normal/
Maps different CoS values to 4 different egress queues.
0: Low
Medium/High
1: Low
2: Normal
3: Normal
4: Medium
5: Medium
6: High
7: High
TOS/DiffServ Mapping
ToS (DSCP) Value and Priority Queues
Setting
Description
Factory Default
Low/Normal/
Maps different TOS values to 4 different egress queues.
1 to 16: Low
Medium/High
17 to 32: Normal
33 to 48: Medium
49 to 64: High
Using Virtual LAN
Setting up Virtual LANs (VLANs) on your Moxa switch increases the efficiency of your network by dividing the
LAN into logical segments, as opposed to physical segments. In general, VLANs are easier to manage.
The Virtual LAN (VLAN) Concept
What is a VLAN?
A VLAN is a group of devices that can be located anywhere on a network, but which communicate as if they are
on the same physical segment. With VLANs, you can segment your network without being restricted by physical
connections—a limitation of traditional network design. With VLANs you can segment your network according
into:
•
Departmental groups—You could have one VLAN for the marketing department, another for the finance
department, and another for the product development department.
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Featured Functions
Hierarchical groups—You could have one VLAN for directors, another for managers, and another for
general staff.
•
Usage groups—You could have one VLAN for email users and another for multimedia users.
Switch A
1
2
3
4
5
6
7
8
Backbone connects multiple switches
Switch B
1
Department 1
VLAN 1
2
3
4
5
6
7
8
Department 2
VLAN 2
Department 3
VLAN 3
Benefits of VLANs
The main benefit of VLANs is that they provide a network segmentation system that is far more flexible than
traditional networks. Using VLANs also provides you with three other benefits:
•
VLANs ease the relocation of devices on networks: With traditional networks, network administrators
spend much of their time dealing with moves and changes. If users move to a different subnetwork, the
addresses of each host must be updated manually. With a VLAN setup, if a host orignally on VLAN Marketing,
for example, is moved to a port on another part of the network, and retains its original subnet membership,
you only need to specify that the new port is on VLAN Marketing. You do not need to do any re-cabling.
•
VLANs provide extra security: Devices within each VLAN can only communicate with other devices on
the same VLAN. If a device on VLAN Marketing needs to communicate with devices on VLAN Finance, the
traffic must pass through a routing device or Layer 3 switch.
•
VLANs help control traffic: With traditional networks, congestion can be caused by broadcast traffic that
is directed to all network devices, regardless of whether or not they need it. VLANs increase the efficiency
of your network because each VLAN can be set up to contain only those devices that need to communicate
with each other.
VLANs and the Rackmount switch
Your Moxa switch provides support for VLANs using IEEE Std 802.1Q-1998. This standard allows traffic from
multiple VLANs to be carried across one physical link. The IEEE Std 802.1Q-1998 standard allows each port on
your Moxa switch to be placed as follows:
•
On a single VLAN defined in the Moxa switch
•
On several VLANs simultaneously using 802.1Q tagging
The standard requires that you define the 802.1Q VLAN ID for each VLAN on your Moxa switch before the switch
can use it to forward traffic:
Managing a VLAN
A new or initialized Moxa switch contains a single VLAN—the Default VLAN. This VLAN has the following
definition:
•
VLAN Name—Management VLAN
•
802.1Q VLAN ID—1 (if tagging is required)
All the ports are initially placed on this VLAN, and it is the only VLAN that allows you to access the management
software of the Moxa switch over the network.
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Communication Between VLANs
If devices connected to a VLAN need to communicate to devices on a different VLAN, a router or Layer 3
switching device with connections to both VLANs needs to be installed. Communication between VLANs can
only take place if they are all connected to a routing or Layer 3 switching device.
VLANs: Tagged and Untagged Membership
The Moxa switch supports 802.1Q VLAN tagging, a system that allows traffic for multiple VLANs to be carried
on a single physical link (backbone, trunk). When setting up VLANs you need to understand when to use
untagged and tagged membership of VLANs. Simply put, if a port is on a single VLAN it can be an untagged
member, but if the port needs to be a member of multiple VLANs, tagged membership must be defined.
A typical host (e.g., clients) will be untagged members of one VLAN, defined as an Access Port in a Moxa
switch, while inter-switch connections will be tagged members of all VLANs, defined as a Trunk Port in a Moxa
switch.
The IEEE Std 802.1Q-1998 defines how VLANs operate within an open packet-switched network. An 802.1Q
compliant packet carries additional information that allows a switch to determine which VLAN the port belongs
to. If a frame is carrying the additional information, it is known as a tagged frame.
To carry multiple VLANs across a single physical link (backbone, trunk), each packet must be tagged with a
VLAN identifier so that the switches can identify which packets belong in which VLAN. To communicate between
VLANs, a router must be used.
The Moxa switch supports three types of VLAN port settings:
•
Access Port: The port connects to a single device that is not tagged. The user must define the default port
PVID that assigns which VLAN the device belongs to. Once the ingress packet of this Access Port egresses
to another Trunk Port (the port needs all packets to carry tag information), the Moxa switch will insert this
PVID into this packet so the next 802.1Q VLAN switch can recognize it.
•
Trunk Port: The port connects to a LAN that consists of untagged devices, tagged devices and/or switches
and hubs. In general, the traffic of the Trunk Port must have a Tag. Users can also assign a PVID to a Trunk
Port. The untagged packet on the Trunk Port will be assigned the port default PVID as its VID.
•
Hybrid Port: The port is similar to a Trunk port, except users can explicitly assign tags to be removed from
egress packets.
The following section illustrates how to use these ports to set up different applications.
Sample Applications of VLANs Using Moxa Switches
In this application,
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Featured Functions
Port 1 connects a single untagged device and assigns it to VLAN 5; it should be configured as Access Port
with PVID 5.
•
Port 2 connects a LAN with two untagged devices belonging to VLAN 2. One tagged device with VID 3 and
one tagged device with VID 4. It should be configured as Trunk Port with PVID 2 for untagged device and
Fixed VLAN (Tagged) with 3 and 4 for tagged device. Since each port can only have one unique PVID, all
untagged devices on the same port must belong to the same VLAN.
•
Port 3 connects with another switch. It should be configured as Trunk Port GVRP protocol will be used
through the Trunk Port.
•
Port 4 connects a single untagged device and assigns it to VLAN 2; it should be configured as Access Port
with PVID 2.
•
Port 5 connects a single untagged device and assigns it to VLAN 3; it should be configured as Access Port
with PVID 3.
•
Port 6 connect a single untagged device and assigns it to VLAN 5; it should be configured as Access Port
with PVID 5.
•
Port 7 connects a single untagged device and assigns it to VLAN 4; it should be configured as Access Port
with PVID 4.
After the application is properly configured:
•
Packets from Device A will travel through Trunk Port 3 with tagged VID 5. Switch B will recognize its VLAN,
pass it to port 6, and then remove tags received successfully by Device G, and vice versa.
•
Packets from Devices B and C will travel through Trunk Port 3 with tagged VID 2. Switch B recognizes its
VLAN, passes it to port 4, and then removes tags received successfully by Device F, and vice versa.
•
Packets from Device D will travel through Trunk Port 3 with tagged VID 3. Switch B will recognize its VLAN,
pass to port 5, and then remove tags received successfully by Device H. Packets from Device H will travel
through Trunk Port 3 with PVID 3. Switch A will recognize its VLAN and pass it to port 2, but will not
remove tags received successfully by Device D.
•
Packets from Device E will travel through Trunk Port 3 with tagged VID 4. Switch B will recognize its VLAN,
pass it to port 7, and then remove tags received successfully by Device I. Packets from Device I will travel
through Trunk Port 3 with tagged VID 4. Switch A will recognize its VLAN and pass it to port 2, but will not
remove tags received successfully by Device E.
Configuring Virtual LAN
VLAN Settings
To configure 802.1Q VLAN and port-based VLANs on the Moxa switch, use the VLAN Settings page to
configure the ports.
VLAN Mode
Setting
Description
Factory Default
802.1Q VLAN
Set VLAN mode to 802.1Q VLAN
802.1Q VLAN
Port-based VLAN
Set VLAN mode to Port-based VLAN
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Management VLAN ID
Setting
Description
Factory Default
VLAN ID from 1 to 4094 Assigns the VLAN ID of this Moxa switch.
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Port Type
Setting
Description
Factory Default
Access
Port type is used to connect single devices without tags.
Access
Trunk
Select Trunk port type to connect another 802.1Q VLAN aware
switch
Hybrid
Select Hybrid port to connect another Access 802.1Q VLAN
aware switch or another LAN that combines tagged and/or
untagged devices and/or other switches/hubs.
ATTENTION
For communication redundancy in the VLAN environment, set Redundant Port Coupling Port and
Coupling Control Port as Trunk Port since these ports act as the backbone to transmit all packets of
different VLANs to different Moxa switch units.
Port PVID
Setting
Description
VID ranges from 1 to
Sets the default VLAN ID for untagged devices that connect to 1
Factory Default
4094
the port.
Fixed VLAN List (Tagged)
Setting
Description
Factory Default
VID ranges from 1 to
This field will be active only when selecting the Trunk or Hybrid None
4094
port type. Set the other VLAN ID for tagged devices that
connect to the port. Use commas to separate different VIDs.
Fixed VLAN List (Untagged
Setting
Description
VID range from 1 to
This field will be active only when selecting the Trunk or Hybrid Default
Factory Default
4094
port type. Set the other VLAN ID for tagged devices that
connect to the port and tags that need to be removed in egress
packets. Use commas to separate different VIDs.
Forbidden VLAN List
Setting
Description
VID ranges from 1 to
This field will be active only when selecting the Trunk or Hybrid None
4094
Factory Default
port type. Set the VLAN IDs that will not be supported by this
port. Use commas to separate different VIDs.
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Port-Based VLAN Settings
Check each specific port to assign its VLAN ID in the table. The maximum VLAN ID is the same as your number
of switch ports.
VLAN Table
Use the 802.1Q VLAN table to review the VLAN groups that were created, Joined Access Ports, Trunk
Ports, and Hybrid Ports, and use the Port-based VLAN table to review the VLAN group and Joined Ports.
NOTE
Most Moxa managed switches have a maximum of 64 VLAN settings. However, the IKS-G6524/G6824 and
ICS-G7000 series support up to 256 VLAN settings.
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Using Multicast Filtering
Multicast filtering improves the performance of networks that carry multicast traffic. This section explains
multicasts, multicast filtering, and how multicast filtering can be implemented on your Moxa switch.
The Concept of Multicast Filtering
What is an IP Multicast?
A multicast is a packet sent by one host to multiple hosts. Only those hosts that belong to a specific multicast
group will receive the multicast. If the network is set up correctly, a multicast can only be sent to an end-station
or a subset of end-stations on a LAN or VLAN that belong to the multicast group. Multicast group members can
be distributed across multiple subnets, so that multicast transmissions can occur within a campus LAN or over
a WAN. In addition, networks that support IP multicast send only one copy of the desired information across the
network until the delivery path that reaches group members diverges. To make more efficient use of network
bandwidth, it is only at these points that multicast packets are duplicated and forwarded. A multicast packet
has a multicast group address in the destination address field of the packet’s IP header.
Benefits of Multicast
The benefits of using IP multicast are:
•
It uses the most efficient, sensible method to deliver the same information to many receivers with only one
transmission.
•
It reduces the load on the source (for example, a server) since it will not need to produce several copies of
the same data.
•
It makes efficient use of network bandwidth and scales well as the number of multicast group members
increases.
•
Works with other IP protocols and services, such as Quality of Service (QoS).
Multicast transmission makes more sense and is more efficient than unicast transmission for some applications.
For example, multicasts are often used for video-conferencing, since high volumes of traffic must be sent to
several end-stations at the same time, but where broadcasting the traffic to all end-stations would cause a
substantial reduction in network performance. Furthermore, several industrial automation protocols, such as
Allen-Bradley, EtherNet/IP, Siemens Profibus, and Foundation Fieldbus HSE (High Speed Ethernet), use
multicast. These industrial Ethernet protocols use publisher/subscriber communications models by
multicasting packets that could flood a network with heavy traffic. IGMP Snooping is used to prune multicast
traffic so that it travels only to those end destinations that require the traffic, reducing the amount of traffic on
the Ethernet LAN.
Multicast Filtering
Multicast filtering ensures that only end-stations that have joined certain groups receive multicast traffic. With
multicast filtering, network devices only forward multicast traffic to the ports that are connected to registered
end-stations. The following two figures illustrate how a network behaves without multicast filtering, and with
multicast filtering.
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Network without multicast filtering
All hosts receive the multicast
traffic, even if they don’t need it.
Network with multicast filtering
Hosts only receive dedicated
traffic from other hosts
belonging to the same group.
Multicast Filtering and Moxa’s Industrial Rackmount Switches
The Moxa switch has three ways to achieve multicast filtering: IGMP (Internet Group Management Protocol)
Snooping, GMRP (GARP Multicast Registration Protocol), and adding a static multicast MAC manually to filter
multicast traffic automatically.
Snooping Mode
Snooping Mode allows your switch to forward multicast packets only to the appropriate ports. The switch
snoops on exchanges between hosts and an IGMP device, such as a router, to find those ports that want to join
a multicast group, and then configures its filters accordingly.
IGMP Snooping Enhanced Mode
Snooping Enhanced Mode allows your switch to forward multicast packets to the Moxa switch’s member port
only. If you disable Enhanced Mode, data streams will run to the querier port as well as the member port.
Query Mode
Query mode allows the Moxa switch to work as the Querier if it has the lowest IP address on the subnetwork to
which it belongs.
NOTE
IGMP Snooping Enhanced mode is only provided in Layer 2 switches.
IGMP querying is enabled by default on the Moxa switch to ensure proceeding query election. Enable query
mode to run multicast sessions on a network that does not contain IGMP routers (or queriers). Query mode
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allows users to enable IGMP snooping by VLAN ID. Moxa switches support IGMP snooping version 1, version 2
and version 3. Version 2 is compatible with version 1.The default setting is IGMP V1/V2. "
NOTE
Moxa Layer 3 switches are compatible with any device that conforms to the IGMP v2 and IGMP v3 device
protocols. Layer 2 switches only support IGMP v1/v2.
IGMP Multicast Filtering
IGMP is used by IP-supporting network devices to register hosts with multicast groups. It can be used on all
LANs and VLANs that contain a multicast capable IP router, and on other network devices that support
multicast filtering. Moxa switches support IGMP version 1, 2 and 3. IGMP version 1 and 2 work as follows::
•
The IP router (or querier) periodically sends query packets to all end-stations on the LANs or VLANs that are
connected to it. For networks with more than one IP router, the router with the lowest IP address is the
querier. A switch with IP address lower than the IP address of any other IGMP queriers connected to the LAN
or VLAN can become the IGMP querier.
•
When an IP host receives a query packet, it sends a report packet back that identifies the multicast group
that the end-station would like to join.
•
When the report packet arrives at a port on a switch with IGMP Snooping enabled, the switch knows that the
port should forward traffic for the multicast group, and then proceeds to forward the packet to the router.
•
When the router receives the report packet, it registers that the LAN or VLAN requires traffic for the
multicast groups.
•
When the router forwards traffic for the multicast group to the LAN or VLAN, the switches only forward the
traffic to ports that received a report packet.
IGMP version 3 supports “source filtering,” which allows the system to define how to treat packets from
specified source addresses. The system can either white-list or black-list specified sources.
IGMP version comparison
IGMP Version
Main Features
Reference
V1
a. Periodic query
RFC-1112
V2
Compatible with V1 and adds:
RFC-2236
a. Group-specific query
b. Leave group messages
c. Resends specific queries to verify leave message was the last one in
the group
d. Querier election
V3
Compatible with V1, V2 and adds:
RFC-3376
a. Source filtering
- accept multicast traffic from specified source
- accept multicast traffic from any source except the specified source
GMRP (GARP Multicast Registration Protocol)
Moxa switches support IEEE 802.1D-1998 GMRP (GARP Multicast Registration Protocol), which is different from
IGMP (Internet Group Management Protocol). GMRP is a MAC-based multicast management protocol, whereas
IGMP is IP-based. GMRP provides a mechanism that allows bridges and end stations to register or de-register
Group membership information dynamically. GMRP functions similarly to GVRP, except that GMRP registers
multicast addresses on ports. When a port receives a GMRP-join message, it will register the multicast
address to its database if the multicast address is not registered, and all the multicast packets with that
multicast address are able to be forwarded from this port. When a port receives a GMRP-leave message, it will
de-register the multicast address from its database, and all the multicast packets with this multicast address
will not be able to be forwarded from this port.
Static Multicast MAC
Some devices may only support multicast packets, but not support either IGMP Snooping or GMRP. The Moxa
switch supports adding multicast groups manually to enable multicast filtering.
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Enabling Multicast Filtering
Use the serial console or web interface to enable or disable IGMP Snooping and IGMP querying. If IGMP
Snooping is not enabled, then IP multicast traffic is always forwarded, flooding the network.
Configuring IGMP Snooping
IGMP Snooping provides the ability to prune multicast traffic so that it travels only to those end destinations
that require that traffic, thereby reducing the amount of traffic on the Ethernet LAN.
Layer 2 switch setting page
Layer 3 switch setting page
IGMP Snooping Enable
Setting
Description
Factory Default
Enable/Disable
Checkmark the IGMP Snooping Enable checkbox near the
Disabled
top of the window to enable the IGMP Snooping function
globally.
Note: You should enable IGMP Snooping if the network also uses non-Moxa 3rd party switches.
Query Interval
Setting
Description
Factory Default
Numerical value, input
Sets the query interval of the Querier function globally. Valid
125 seconds
by the user
settings are from 20 to 600 seconds.
IGMP Snooping Enhanced Mode
Setting
Description
Factory Default
Enable
IGMP Multicast packets will be forwarded to:
Disable
•
Auto-Learned Multicast Querier Ports
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•
Disable
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Member Ports
IGMP Multicast packets will be forwarded to:
•
Auto-Learned Multicast Router Ports
•
Static Multicast Querier Ports
•
Querier Connected Ports
•
Member Ports
Note: IGMP Snooping Enhanced Mode in networks composed entirely of Moxa switches
IGMP Snooping
Setting
Description
Factory Default
Enable/Disable
Enables or disables the IGMP Snooping function on that
Enabled if IGMP
particular VLAN.
Snooping is enabled
globally
Querier
Setting
Description
Factory Default
Enable/Disable
Enables or disables the Moxa switch’s querier function.
Enabled if IGMP
Snooping is enabled
globally
V1/V2 and V3 checkbox V1/V2: Enables switch to send IGMP snooping version 1 and 2 V1/V2
queries
V3: Enables switch to send IGMP snooping v3 queries
Static Multicast Querier Port
Setting
Description
Factory Default
Select/Deselect
Select the ports that will connect to the multicast routers.
Disabled
These ports will receive all multicast packets from the source.
This option is only active when IGMP Snooping is enabled.
NOTE
If a router or layer 3 switch is connected to the network, it will act as the Querier, and consequently this
Querier option will be disabled on all Moxa layer 2 switches.
If all switches on the network are Moxa layer 2 switches, then only one layer 2 switch will act as Querier.
IGMP Table
The Moxa switch displays the current active IGMP groups that were detected. View IGMP group setting per
VLAN ID on this page.
Layer 2 switch page
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Layer 3 switch page
The information shown in the table includes:
•
Auto-learned Multicast Router Port: This indicates that a multicast router connects to/sends packets from
these port(s)
•
Static Multicast Router Port: Displays the static multicast querier port(s)
•
Querier Connected Port: Displays the port which is connected to the querier.
•
Act as a Querier: Displays whether or not this VLAN is a querier (winner of a election).
Current Active IGMP Streams
This page displays the multicast stream forwarding status. It allows you to view the status per VLAN ID.
Stream Group: Multicast group IP address
Stream Source: Multicast source IP address
Port: Which port receives the multicast stream
Member ports: Ports the multicast stream is forwarded to.
NOTE
The IGMP stream table is supported only in Layer 3 switches
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Static Multicast MAC Addresses
Layer 2 switch page
Layer 3 switch page
Note: 01:00:5E:XX:XX:XX on this page is the IP multicast MAC address. Please activate IGMP Snooping for
automatic classification.
Add New Static Multicast Address to the List
Setting
Description
Factory Default
MAC Address
Input the multicast MAC address of this host.
None
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MAC Address
Setting
Description
Factory Default
Integer
Input the number of the VLAN that the host with this MAC
None
address belongs to.
Join Port
Setting
Description
Select/Deselect
Checkmark the appropriate check boxes to select the join ports None
Factory Default
for this multicast group.
Configuring GMRP
GMRP is a MAC-based multicast management protocol, whereas IGMP is IP-based. GMRP provides a
mechanism that allows bridges and end stations to register or un-register Group membership information
dynamically.
GMRP enable
Setting
Description
Factory Default
Enable/Disable
Enables or disables the GMRP function for the port listed in the Disable
Port column
GMRP Table
The Moxa switch displays the current active GMRP groups that were detected
Setting
Description
Fixed Ports
This multicast address is defined by static multicast.
Learned Ports
This multicast address is learned by GMRP.
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Multicast Filtering Behavior
Setting
Description
Factory Default
Multicast Filtering
Define the multicast filtering behavior by three options:
Forward Unknown
Behavior
Forward All: flood all multicast packets to the VLAN of the
network.
Forward Unknown: flood unknown multicast packets to the
VLAN while known multicast packets are sent to the indicated
groups.
Filter Unknown: drop unknown multicast packets and only send
known multicast packets to indicated groups.
Using Bandwidth Management
In general, one host should not be allowed to occupy unlimited bandwidth, particularly when the device
malfunctions. For example, so-called “broadcast storms” could be caused by an incorrectly configured topology,
or a malfunctioning device. Moxa industrial Ethernet switches not only prevents broadcast storms, but can also
be configured to a different ingress rate for all packets, giving administrators full control of their limited
bandwidth to prevent undesirable effects caused by unpredictable faults.
Configuring Bandwidth Management
Please note that two types of bandwidth management settings are available, depending on the specific model
of switch.
Type
Models Supported
Type 1
EDS-400A series, EDS-505A/508A/510A, EDS-P506/P510, EDS-600 series
Type 2
EDS-516A/518A and other models
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Type 1
Traffic Rate Limiting Settings
Control Mode
Description
Factory Default
Normal
Set the max. ingress rate limit for different packet types
Port Disable
When the ingress multicast and broadcast packets exceed the
ingress rate limit, the port will be disabled for a certain period.
Normal
During this period, all packets from this port will be discarded.
Ingress Rate Limit - Normal
Policy
Description
Limit All
Select the ingress rate limit for different
Limit Broadcast, Multicast, Flooded Unicast
packet types from the following options:
Limit Broadcast, Multicast
Not Limited, 128K, 256K, 512K, 1M, 2M,
Limit Broadcast
4M, 8M
Factory Default
Limit Broadcast 8M
Ingress Rate Limit – Port Disable
Setting
Description
Factory Default
Port disable duration (1~65535
When the ingress multicast and broadcast packets
30 second
seconds)
exceed the ingress rate limit, the port will be disabled
for this period of time. During this time, all packets
from this port will be discarded.
Ingress (fps)
Select the ingress rate (fps) limit for all packets from Not Limited
the following options: Not Limited, 4464, 7441,
14881, 22322, 37203, 52084, 74405
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Egress Rate Limit
Setting
Description
Egress rate
Select the ingress rate limit (% of max. throughput) for Not Limited
Factory Default
all packets from the following options: Not Limited, 3%,
5%, 10%, 15%, 25%, 35%, 50%, 65%, 85%
Type 2
Broadcast Storm Protection
Setting
Description
Enable/Disable
This enables or disables Broadcast Storm Protection for Enable
Factory Default
unknown broadcast packet globally
This enables or disables Broadcast Storm Protection for Disable
unknown multicast packets and unicast packets
globally
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Traffic Rate Limiting Settings
Ingress and Egress Rate Limit - Normal
Setting
Description
Factory Default
Ingress rate
Select the ingress/egress rate limit (% of max.
Not Limited
Egress rate
throughput) for all packets from the following options:
Not Limited, 3%, 5%, 10%, 15%, 25%, 35%, 50%,
65%, 85%
Ingress Rate Limit – Port Disable
Setting
Description
Factory Default
Period (1~65535 seconds)
When the ingress packets exceed the ingress rate limit, 30 seconds
the port will be disabled for a certain period.
Ingress (frame per second)
Select the ingress rate (fps) limit for all packets from the Not Limited
following options: Not Limited, 4464, 7441, 14881,
22322, 37203, 52084, 74405
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Unicast Filter Behavior
Note: These functions are supported in the EDS-728/828 and Rackmount switches.
When a switch receives an unknown unicast packet, it will flood it to all ports in the LAN. The Unicast Filter
Behavior function provides a mechanism to prevent switch flooding of these unknown unicast packets. Select
this check box to activate this filter behavior.
Setting
Description
Factory Default
Enable Filter
Enable this function to prevent unknown unicast packets Disable
unknown
from flooding to all ports in the VLAN
Unicast
Security
Note: Security functions not supported in EDS-400A series.
Security can be categorized in two levels: the user name/password level, and the port access level. For user
name/password level security, Moxa switches provide two different user login options: Terminal Access
Controller Access-Control System Plus (TACACS+) and Remote Authentication Dial In User Service (RADIUS).
The TACACS+ and RADIUS mechanism is a centralized “AAA” (Authentication, Authorization and Accounting)
system for connecting to network services. The fundamental purpose of both TACACS+ and RADIUS is to
provide an efficient and secure mechanism for user account management.
User Login Authentication – User Login Settings
Both TACAS+ and RADIUS are options here.
User Login Authentication – Auth Server Setting
The detailed configuration settings of TACACS+ and RADIUS are displayed in the table below:
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Setting
Description
Factory Default
Server Type
Authentication server types selection
TACACS+
Server IP/Name
Set IP address of an external TACACS+/RADIUS server as Localhost
the authentication database
Server Port
Set communication port of an external TACACS+/RADIUS TACACS+ : 49
server as the authentication database
RADIUS : 1812
Server Shared Key
Set specific characters for server authentication
None
Authentication Type
The authentication mechanism isEAP-MD5 for RADIUS
ASCII for TACACS+
Server Timeout
The timeout period to wait for a server response
TACACS+ : 30
verification
RADIUS : 5
Using Port Access Control
The Moxa switch provides two kinds of Port-Based Access Control: Static Port Lock and IEEE 802.1X.
Static Port Lock
In this case, the Moxa switch can also be configured to protect static MAC addresses for a specific port. With the
Port Lock function, these locked ports will not learn any additional addresses, but only allow traffic from preset
static MAC addresses, helping to block hackers and careless usage.
IEEE 802.1X
The IEEE 802.1X standard defines a protocol for client/server-based access control and authentication. The
protocol restricts unauthorized clients from connecting to a LAN through ports that are open to the Internet,
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and which otherwise would be readily accessible. The purpose of the authentication server is to check each
client that requests access to the port. The client is only allowed access to the port if the client’s permission is
authenticated.
Three components are used to create an authentication mechanism based on 802.1X standards:
Client/Supplicant, Authentication Server, and Authenticator.
Client/Supplicant: The end station that requests access to the LAN and switch services and responds to the
requests from the switch.
Authentication Server: The server that performs the actual authentication of the supplicant.
Authenticator: Edge switch or wireless access point that acts as a proxy between the supplicant and the
authentication server, requesting identity information from the supplicant, verifying the information with the
authentication server, and relaying a response to the supplicant.
The Moxa switch acts as an authenticator in the 802.1X environment. A supplicant and an authenticator
exchange EAPOL (Extensible Authentication Protocol over LAN) frames with each other. We can either use an
external RADIUS server as the authentication server, or implement the authentication server in the Moxa
switch by using a Local User Database as the authentication look-up table. When we use an external RADIUS
server as the authentication server, the authenticator and the authentication server exchange EAP frames
between each other.
Authentication can be initiated either by the supplicant or the authenticator. When the supplicant initiates the
authentication process, it sends an EAPOL-Start frame to the authenticator. When the authenticator initiates
the authentication process or when it receives an EAPOL Start frame, it sends an EAP Request/Identity
frame to ask for the username of the supplicant.
Configuring Static Port Lock
The Moxa switch supports adding unicast groups manually if required.
Static Unicast MAC Address
Setting
Description
Factory Default
MAC Address
Adds the static unicast MAC address into the address table.
None
Port
Associates the static address to a dedicated port.
1-1
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Configuring IEEE 802.1X
Database Option
Setting
Description
Local
Select this option when setting the Local User Database as the Local
Factory Default
(Max. of 32 users)
authentication database.
Radius
Select this option to set an external RADIUS server as the
Local
authentication database. The authentication mechanism is
EAP-MD5.
Radius, Local
Select this option to make using an external RADIUS server as Local
the authentication database the first priority. The
authentication mechanism is EAP-MD5 The first priority is to set
the Local User Database as the authentication database.
Radius Server
Setting
Description
Factory Default
IP address or domain
The IP address or domain name of the RADIUS server
local host
name
Server Port
Setting
Description
Factory Default
Numerical
The UDP port of the RADIUS server
1812
Shared Key
Setting
Description
Factory Default
alphanumeric (Max. of
A key to be shared between the external RADIUS server and
None
40 characters)
Moxa switch. Both ends must be configured to use the same
key.
Re-Auth
Setting
Description
Factory Default
Enable/Disable
Select enable to require re-authentication of the client after a
Disable
preset time period of no activity has elapsed.
Re-Auth Period
Setting
Description
Factory Default
Numerical
Specify how frequently the end stations need to reenter
3600
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(60 to 65535 sec.)
Featured Functions
usernames and passwords in order to stay connected.
802.1X
Setting
Description
Factory Default
Enable/Disable
Checkmark the checkbox under the 802.1X column to enable
Disable
IEEE 802.1X for one or more ports. All end stations must enter
usernames and passwords before access to these ports is
allowed.
802.1X Re-Authentication
The Moxa switch can force connected devices to be re-authorized manually.
802.1X Re-Authentication
Setting
Description
Factory Default
Enable/Disable
Enables or disables 802.1X Re-Authentication
Disable
Local User Database Setup
When setting the Local User Database as the authentication database, set the database first.
Local User Database Setup
Setting
Description
Factory Default
User Name
User Name for the Local User Database
None
(Max. of 30 characters)
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Password
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Password for the Local User Database
None
Description for the Local User Database
None
(Max. of 16 characters)
Description
(Max. of 30 characters)
NOTE
The user name for the Local User Database is case-insensitive.
Port Access Control Table
The port status will show authorized or unauthorized.
Using Auto Warning
Since industrial Ethernet devices are often located at the endpoints of a system, these devices will not always
know what is happening elsewhere on the network. This means that an industrial Ethernet switch that connects
to these devices must provide system maintainers with real-time alarm messages. Even when control
engineers are out of the control room for an extended period of time, they can still be informed of the status of
devices almost instantaneously when exceptions occur. The Moxa switch supports different approaches to warn
engineers automatically, such as email and relay output. It also supports two digital inputs to integrate sensors
into your system to automate alarms by email and relay output.
Configuring Email Warning
The Auto Email Warning function uses e-mail to alert the user when certain user-configured events take place.
Three basic steps are required to set up the Auto Warning function:
Configure Email Event Types
Select the desired Event types from the Console or Web Browser Event type page (a description of each event
type is given later in the Email Alarm Events setting subsection).
Configure Email Settings
To configure a Moxa switch’s email setup from the serial, Telnet, or web console, enter your Mail Server
IP/Name (IP address or name), Account Name, Account Password, Retype New Password, and the email
address to which warning messages will be sent.
Activate your settings and if necessary, test the email
After configuring and activating your Moxa switch’s Event Types and Email Setup, you can use the Test Email
function to see if your e-mail addresses and mail server address have been properly configured.
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Configuring Event Types
Event Types can be divided into two basic groups: System Events and Port Events. System Events are
related to the overall function of the switch, whereas Port Events are related to the activity of a specific port.
System Events
Warning e-mail is sent when…
Switch Cold Start
Power is cut off and then reconnected.
Switch Warm Start
Moxa switch is rebooted, such as when network parameters are changed
Power Transition (OnOff)
Moxa switch is powered down.
Power Transition (OffOn)
Moxa switch is powered up.
DI1 (OnOff)
Digital Input 1 is triggered by on to off transition
DI1 (OffOn)
Digital Input 1 is triggered by off to on transition
(IP address, subnet mask, etc.).
Configuration Change Activated
Any configuration item has been changed.
Authentication Failure
An incorrect password was entered.
Comm. Redundancy Topology
If any Spanning Tree Protocol switches have changed their position
Changed
(applies only to the root of the tree).
If the Master of the Turbo Ring has changed or the backup path is
activated.
Port Events
Warning e-mail is sent when…
Link-ON
The port is connected to another device.
Link-OFF
The port is disconnected (e.g., the cable is pulled out, or the opposing
Traffic-Overload
The port’s traffic surpasses the Traffic-Threshold for that port (provided
Traffic-Threshold (%)
Enter a nonzero number if the port’s Traffic-Overload item is Enabled.
Traffic-Duration (sec.)
A Traffic-Overload warning is sent every Traffic-Duration seconds if the
device shuts down).
this item is Enabled).
average Traffic-Threshold is surpassed during that time period.
NOTE
The Traffic-Overload, Traffic-Threshold (%), and Traffic-Duration (sec.) Port Event items are related. If you
Enable the Traffic-Overload event, then be sure to enter a nonzero Traffic-Threshold percentage, as well as a
Traffic-Duration between 1 and 300 seconds.
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NOTE
Featured Functions
The sender of warning e-mail messages will have the following form:
Managed-Redundant-Switch-00000@Switch_Location
where Managed-Redundant-Switch-00000 is the default Switch Name, 00000 is the Moxa switch’s serial
number, and Switch_Location is the default Server Location. Refer to the Basic Settings section to see how to
modify Switch Name and Switch Location.
Configuring Email Settings
Mail Server IP/Name
Setting
Description
Factory Default
IP address
The IP Address of your email server.
None
Setting
Description
Factory Default
Max. 45 of charters
Your email account.
None
Setting
Description
Factory Default
Disable/Enable to
To reset the password from the Web Browser interface, click
Disable
change password
the Change password check-box, type the Old password, type
Account Name
Password Setting
the New password, retype the New password, and then click
Activate (Max. of 45 characters).
Old password
Type the current password when changing the password
None
New password
Type new password when enabled to change password; Max.
None
45 characters.
Retype password
If you type a new password in the Password field, you will be
None
required to retype the password in the Retype new password
field before updating the new password.
Email Address
Setting
Description
Factory Default
Max. of 30 characters
You can set up to 4 email addresses to receive alarm emails
None
from the Moxa switch.
Send Test Email
After you complete the email settings, you should first click Activate to activate those settings, and then press
the Send Test Email button to verify that the settings are correct.
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Auto warning e-mail messages will be sent through an authentication protected SMTP server that supports
the CRAM-MD5, LOGIN, and PAIN methods of SASL (Simple Authentication and Security Layer)
authentication mechanism.
We strongly recommend not entering your Account Name and Account Password if auto warning e-mail
messages can be delivered without using an authentication mechanism.
Configuring Relay Warning
The Auto Relay Warning function uses relay output to alert the user when certain user-configured events take
place. There are two basic steps required to set up the Relay Warning function:
Configure Relay Event Types
Select the desired Event types from the Console or Web Browser Event type page (a description of each event
type is given later in the Relay Alarm Events setting subsection).
Activate your settings
After completing the configuration procedure, you will need to activate your Moxa switch’s Relay Event Types.
Configuring Event Types
Event Types can be divided into two basic groups: System Events and Port Events. System Events are
related to the overall function of the switch, whereas Port Events are related to the activity of a specific port.
The Moxa switch supports two relay outputs. You can configure which relay output is related to which events,
which helps administrators identify the importance of the different events.
System Events
Warning Relay output is triggered when…
Power Transition (OnOff)
The Moxa switch is powered on.
Power Transition (OffOn)
The Moxa switch is powered down.
Port Events
Warning e-mail is sent when…
Link-ON
The port is connected to another device.
Link-OFF
The port is disconnected (e.g., the cable is pulled out, or the opposing device
shuts down).
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Traffic-Overload
The port’s traffic surpasses the Traffic-Threshold for that port (provided this
Traffic-Threshold (%)
Enter a nonzero number if the port’s Traffic-Overload item is Enabled.
Traffic-Duration (sec.)
A Traffic-Overload warning is sent every Traffic-Duration seconds if the
item is Enabled).
average Traffic-Threshold is surpassed during that time period.
NOTE
The Traffic-Overload, Traffic-Threshold (%), and Traffic-Duration (sec) Port Event items are related. If you
Enable the Traffic-Overload event, then be sure to enter a nonzero Traffic-Threshold percentage, as well as a
Traffic-Duration between 1 and 300 seconds.
Override relay alarm settings
Checkmark the checkbox to override the relay warning setting temporarily. Releasing the relay output will
allow administrators to fix any problems with the warning condition.
Warning List
Use this table to see if any relay alarms have been issued.
Using Line-Swap-Fast-Recovery
The Line-Swap Fast Recovery function, which is enabled by default, allows the Moxa switch to return to normal
operation extremely quickly after devices are unplugged and then re-plugged into different ports. The recovery
time is on the order of a few milliseconds (compare this with standard commercial switches for which the
recovery time could be on the order of several minutes). To disable the Line-Swap Fast Recovery function, or
to re-enable the function after it has already been disabled, access either the Console utility’s Line-Swap
recovery page, or the Web Browser interface’s Line-Swap fast recovery page, as shown below.
Configuring Line-Swap Fast Recovery
Enable Line-Swap-Fast-Recovery
Setting
Description
Factory Default
Enable/Disable
Checkmark the checkbox to enable the
Enable
Line-Swap-Fast-Recovery function
Using Set Device IP
To reduce the effort required to set up IP addresses, the Moxa switch comes equipped with DHCP/BootP server
and RARP protocol to set up IP addresses of Ethernet-enabled devices automatically.
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When enabled, the Set device IP function allows the Moxa switch to assign specific IP addresses automatically
to connected devices that are equipped with DHCP Client or RARP protocol. In effect, the Moxa switch acts as
a DHCP server by assigning a connected device with a specific IP address stored in its internal memory. Each
time the connected device is switched on or rebooted, the Moxa switch sends the device the desired IP address.
Take the following steps to use the Set device IP function:
STEP 1—Set up the connected devices
Set up those Ethernet-enabled devices connected to the Moxa switch
for which you would like IP addresses to be assigned automatically.
The devices must be configured to obtain their IP address
automatically.
The devices’ configuration utility should include a setup page that
allows you to choose an option similar to the Obtain an IP address
automatically option.
For example, Windows’ TCP/IP Properties window is shown at the
right. Although your device’s configuration utility may look quite a bit
different, this figure should give you some idea of what to look for.
You also need to decide which of the Moxa switch’s ports your
Ethernet-enabled devices will be connected to. You will need to set
up each of these ports separately, as described in the following step.
STEP 2
Configure the Moxa switch’s Set device IP function, either from the Console utility or from the Web Browser
interface. In either case, you simply need to enter the Desired IP for each port that needs to be configured.
STEP 3
Be sure to activate your settings before exiting.
•
•
When using the Web Browser interface, activate by clicking on the Activate button.
When using the Console utility, activate by first highlighting the Activate menu option, and then press
Enter. You should receive the Set device IP settings are now active! (Press any key to continue)
message.
Configuring Set Device IP
Automatic “Set Device IP” by DHCP/BootP/RARP
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Desired IP Address
Setting
Description
Factory Default
IP Address
Set the desired IP of connected devices.
None
Option 82 is used by the relay agent to insert additional information into the client’s DHCP request. The Relay
Agent Information option is inserted by the DHCP relay agent when forwarding client-originated DHCP packets
to a DHCP server. Servers can recognize the Relay Agent Information option and use the information to
implement IP addresses to Clients.
When Option 82 is enabled on the switch, a subscriber device is identified by the switch port through which it
connects to the network (in addition to its MAC address). Multiple hosts on the subscriber LAN can be connected
to the same port on the access switch and are uniquely identified.
The Option 82 information contains 2 sub-options, Circuit ID and Remote ID, which define the relationship
between the end device IP and the DHCP Option 82 server. The Circuit ID is a 4-byte number generated by the
Ethernet switch—a combination of physical port number and VLAN ID. The format of the Circuit ID is shown
below:
FF–VV–VV–PP
This is where the first byte “FF” is fixed to “01”, the second and the third byte “VV-VV” is formed by the port
VLAN ID in hex, and the last byte “PP” is formed by the port number in hex. For example:
01–00–0F–03 is the “Circuit ID” of port number 3 with port VLAN ID 15.
The “Remote ID” identifies the relay agent itself and can be one of the following:
1. The IP address of the relay agent.
2. The MAC address of the relay agent.
3. A combination of IP address and MAC address of the relay agent.
4. A user-defined string.
Configuring DHCP Relay Agent
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Server IP Address
1st Server
Setting
Description
IP address for the 1st
Assigns the IP address of the 1st DHCP server that the switch None
Factory Default
DHCP server
tries to access.
2nd Server
Setting
Description
Factory Default
IP address for the 2nd
Assigns the IP address of the 2nd DHCP server that the switch None
DHCP server
tries to access.
3rd Server
Setting
Description
IP address for the 3rd
Assigns the IP address of the 3rd DHCP server that the switch None
Factory Default
DHCP server
tries to access.
4th Server
Setting
Description
IP address for the 4th
Assigns the IP address of the 4th DHCP server that the switch None
Factory Default
DHCP server
tries to access.
DHCP Option 82
Enable Option 82
Setting
Description
Factory Default
Enable or Disable
Enable or disable the DHCP Option 82 function.
Disable
Description
Factory Default
IP
Uses the switch’s IP address as the remote ID sub.
IP
MAC
Uses the switch’s MAC address as the remote ID sub.
IP
Client-ID
Uses a combination of the switch’s MAC address and IP address IP
Type
Setting
as the remote ID sub.
Other
Uses the user-designated ID sub.
IP
Setting
Description
Factory Default
Max. 12 characters
Displays the value that was set. Complete this field if type is set Switch IP address
Value
to Other.
Display
Setting
Description
read-only
The actual hexadecimal value configured in the DHCP server for COA87FFD
Factory Default
the Remote-ID. This value is automatically generated
according to the Value field. Users cannot modify it.
DHCP Function Table
Enable
Setting
Description
Factory Default
Enable or Disable
Enable or disable the DHCP Option 82 function for this port.
Disable
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Using Diagnosis
The Moxa switch provides three important tools for administrators to diagnose network systems.
Mirror Port
The Mirror port function can be used to monitor data being transmitted through a specific port. This is done
by setting up another port (the mirror port) to receive the same data being transmitted from, or both to and
from, the port under observation. Using a mirror port allows the network administrator to sniff the observed
port to keep tabs on network activity.
Take the following steps to set up the Mirror Port function:
STEP 1
Configure the Moxa switch’s Mirror Port function from either the Console utility or Web Browser interface. You
will need to configure three settings:
Monitored Port
Select the port number of the port whose network activity will be monitored.
Mirror Port
Select the port number of the port that will be used to monitor the activity of the
monitored port.
Watch Direction
Select one of the following two watch direction options:
•
Input data stream:
Select this option to monitor only those data packets coming into the Moxa
switch’s port.
•
Output data stream:
Select this option to monitor only those data packets being sent out through the
Moxa switch’s port.
•
Bi-directional:
Select this option to monitor data packets both coming into, and being sent out
through, the Moxa switch’s port.
STEP 2
Be sure to activate your settings before exiting:
•
When using the Web Browser interface, activate by clicking on the Activate button.
•
When using the Console utility, activate by first highlighting the Activate menu option, and then press
Enter. You should receive the Mirror port settings are now active! (Press any key to continue)
message.
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Ping
The Ping function uses the ping command to give users a simple but powerful tool for troubleshooting network
problems. The function’s most unique feature is that even though the ping command is entered from the user’s
PC keyboard, the actual ping command originates from the Moxa switch itself. In this way, the user can
essentially sit on top of the Moxa switch and send ping commands out through its ports.
To use the Ping function, type in the desired IP address, and then press Enter from the Console utility, or click
Ping when using the Web Browser interface.
LLDP Function
Overview
LLDP is an OSI Layer 2 protocol defined by IEEE 802.11AB. LLDP standardizes the self-identification
advertisement method, and allows each networking device, such as a Moxa managed switch, to periodically
send its system and configuration information to its neighbors. Because of this, all LLDP devices are kept
informed of each other’s status and configuration, and with SNMP, this information can be transferred to Moxa’s
MXview for auto-topology and network visualization.
From the switch’s web interface, you can enable or disable LLDP, and set the LLDP transmit interval. In addition,
you can view each switch’s neighbor-list, which is reported by its network neighbors. Most importantly,
enabling the LLDP function allows Moxa’s MXview to automatically display the network’s topology and system
setup details, such as VLAN and Trunking, for the entire network.
Configuring LLDP Settings
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General Settings
LLDP
Setting
Description
Factory Default
Enable or Disable
Enables or disables the LLDP function.
Enable
Message Transmit Interval
Setting
Description
Factory Default
5 to 32768 sec.
Sets the transmit interval of LLDP messages, in seconds.
30 (seconds)
LLDP Table
The LLDP Table displays the following information:
Port
The port number that connects to the neighbor device.
Neighbor ID
A unique entity (typically the MAC address) that identifies a neighbor device.
Neighbor Port
The port number of the neighbor device.
Neighbor Port Description A textual description of the neighbor device’s interface.
Neighbor System
Hostname of the neighbor device.
Using Monitor
You can monitor statistics in real time from the Moxa switch’s web console and serial console.
Monitor by Switch
Access the Monitor by selecting System from the left selection bar. Monitor by System allows the user to view
a graph that shows the combined data transmission activity of all of the Moxa switch’s 18 ports. Click one of the
four options—Total Packets, TX Packets, RX Packets, or Error Packets—to view transmission activity of
specific types of packets. Recall that TX Packets are packets sent out from the Moxa switch, RX Packets are
packets received from connected devices, and Error Packets are packets that did not pass TCP/IP’s error
checking algorithm. The Total Packets option displays a graph that combines TX, RX, and TX Error, RX Error
Packets activity. The graph displays data transmission activity by showing Packets/s (i.e., packets per second,
or pps) versus sec. (seconds). In fact, three curves are displayed on the same graph: Uni-cast packets (in red
color), Multi-cast packets (in green color), and Broad-cast packets (in blue color). The graph is updated
every few seconds, allowing the user to analyze data transmission activity in real-time.
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Monitor by Port
Access the Monitor by Port function by selecting ALL 10/100M or 1G Ports or Port i, in which i = 1, 2, …, G2,
from the left pull-down list. The Port i options are identical to the Monitor by System function discussed above,
in that users can view graphs that show All Packets, TX Packets, RX Packets, or Error Packets activity, but in
this case, only for an individual port. The All Ports option is essentially a graphical display of the individual port
activity that can be viewed with the Console Monitor function discussed above. The All Ports option shows three
vertical bars for each port. The height of the bar represents Packets/s for the type of packet, at the instant the
bar is being viewed. That is, as time progresses, the height of the bar moves up or down so that the user can
view the change in the rate of packet transmission. The blue colored bar shows Uni-cast packets, the red
colored bar shows Multi-cast packets, and the orange colored bar shows Broad-cast packets. The graph is
updated every few seconds, allowing the user to analyze data transmission activity in real-time.
Monitor by SFP
Optical fiber is commonly used for long distance data transmission. However, when link issues occur, it is very
costly to trouble shoot the fiber cable and fiber transceiver at remote sites. To solve this problem, Moxa
industrial Ethernet switches provide digital diagnostic and monitoring functions on Moxa SFP optical fiber links
and allow users to measure optical parameters and its performance from center site. This function can greatly
facilitate the trouble shooting process for optical fiber links and reduce costs for onsite debug.
Parameter
Description
Port No.
Switch port number with SFP plugged in
Model Name
Moxa SFP model name
Temperature (°C)
SFP casing temperature
Voltage (V)
Voltage supply to the SFP
Tx power (dBm)
The amount of light being transmitted into the fiber optic cable
Rx power (dBm)
The amount of light being received from the fiber optic cable
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Moxa Managed Ethernet Switches
NOTE
Featured Functions
Certain tolerances exist between real data and measured data
Parameters
Tolerance
Temperature (°C)
± 3°C
Voltage (V)
± 0.1V
Tx power (dBm)
± 3dB
Rx power (dBm)
± 3dB
Using the MAC Address Table
This section explains the information provided by the Moxa switch’s MAC address table.
The MAC Address table can be configured to display the following Moxa switch MAC address groups, which are
selected from the drop-down list:
ALL
Select this item to show all of the Moxa switch’s MAC addresses.
ALL Learned
Select this item to show all of the Moxa switch’s Learned MAC addresses.
ALL Static Lock
Select this item to show all of the Moxa switch’s Static Lock MAC addresses.
ALL Static
Select this item to show all of the Moxa switch’s Static, Static Lock, and Static
Multicast MAC addresses.
ALL Static Multicast
Select this item to show all of the Moxa switch’s Static Multicast MAC addresses.
Port x
Select this item to show all of the MAC addresses dedicated ports.
The table displays the following information:
MAC
This field shows the MAC address.
Type
This field shows the type of this MAC address.
Port
This field shows the port that this MAC address belongs to.
Using Access Control List
NOTE
Access Control Lists are available in Moxa Layer 3 switches.
Access control lists (ACL) increase the flexibility and security of networking management.
ACL provides traffic filter capabilities for ingress or egress packets. Moxa access control list helps manage filter
criteria for diverse protocols and allows users to configure customized filter criteria. For example, users can
deny access to specific source or destination IP/MAC addresses.
The Moxa access control list configuration interface is easy-to-use. Users can quickly establish filtering rules,
manage rule priorities, and view overall settings in the display page.
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The ACL Concept
What is ACL?
Access control list is a basic traffic filter for ingress and egress packets. It can examine each Ethernet packet’s
information and take necessary action. Moxa Layer 3 switches provide complete filtering capability. Access list
criteria could include the source or destination IP address of the packets, the source or destination MAC
address of the packets, IP protocols, or other information. The ACL can check these criteria to decide whether
to permit or deny access to a packet.
Benefits of ACL
ACL has per interface, per packet direction, and per protocol filtering capability. These features can provide
basic protection by filtering specific packets. The main benefits of ACL are as follows:
•
Manage authority of hosts: ACL can restrict specific devices through MAC address filtering. The user can
•
Subnet authority management: Configure filtering rules for specific subnet IP addresses. ACL can
deny all packets or only permit packets that come from specific devices.
restrict packets from or to specific subnets.
•
Network security: The demand for networking security is growing. ACL can provide basic protection which
works similarly to an Ethernet firewall device.
•
Control traffic flow by filtering specific protocols: ACL can filter specific IP protocols such as TCP or
UDP packets.
How ACL works
ACL working structure is based on access lists. Each access list is a filter. When a packet enters into or exits
from a switch, ACL will compare the packet to the rules in the access lists, starting from the first rule. If a packet
is rejected or accepted by the first rule, the switch will drop or pass this packet directly without checking the
rest of the lower-priority rules. In the other words, Access Control List has “Priority Index” as its attribute to
define the priority in the web configuration console.
There are two types of settings for an ACL: the list settings, and the rule settings. In order to be created, an
Access Control List needs the following list settings: Name, Priority Index, Filter Type, and Ports to Apply. Once
created, each Access Control List has its own set of rule settings. Priority Index represents the priority of the
names in the access list. Names at Priority Index 1 have first priority in packet filtering. The Priority Index is
adjustable whenever users need to change the priority. In this function, there are two types of packet filtering
available:
•
IP based
•
MAC Based
Filter type defines whether the access list will examine packets based on IP or MAC address. This type affects
what detailed rules can be edited. Then, assign the ports you would like to apply the list to. You can also define
Ingress and Egress per port.
After adding a new access control list, you can also create new rules for the access control list. Each ACL group
accepts 10 rules. Rules can filter packets by source and destination IP/MAC address, IP protocol, TCP/UDP Port,
Ethernet Type, and VLAN ID.
After all rules are set, ACL starts to filter the packets by the rule with the highest Priority Index (smaller number,
higher priority). Once a rule denies or accepts its access, the packet will be dropped or passed.
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Access Control List Configuration and Setup
Access Control List Settings
Creating an access control list starts at the Access Control List Setting page.
In this page, you can mainly configure two settings:
Add/Modify Access Control List
This function lets you Add a new access control list or Modify an existing access control list. The operation
depends on the Priority Index you select. If the selected priority index is still empty, you can start by creating
a new access control list. Parameters for editing are:
•
Priority Index: ACL checking sequence is based on this index. Smaller index numbers have higher priority
for packet filtering. If a packet is filtered by an access list with higher priority, those access lists with lower
priority will not being executed.
Note that Priority Index is not a one-to-one index for each list name. It changes when swapping the priority
of different access control lists.
The maximum Priority Index number is 16
•
Name: You can name the access control list in this field. This is the access list’s unique name.
•
Filter: Select filtering by either IP or MAC address. Detailed settings can be configured in the Access
Control Rule Settings page.
•
Ingress Port Map/Egress Port Map: You can choose which ports to apply the rules to. The Ingress and
Egress condition uses OR logic. This means a packet only needs to match one ingress or egress port rule to
be examined.
If a selected priority index is already in the access control list, then you can modify these parameters listed
above. After configuration, click Activate to confirm the settings. Then you will see a new list appear in the
Access Control List table.
Adjust ACL Priority Index
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Featured Functions
Changing an established access control list’s priority is easy. Moxa provides a simple interface to let you easily
adjust priority. Follow the three steps below to adjust the priority:
Step 1: Select the list
Step 2: Click the Up/Down button to adjust the sequence. The Priority Index will change with the list’s
position.
Step 3: Click the Activate button to confirm the settings.
Access Control Rule Settings
You can edit an access control list’s rules on this page. Each ACL can include up to 10 rules.
First, select the access control list you would like to edit based on the Priority Index. The Ingress/Egress Port
map will display the port settings.
NOTE
The port map here is also editable. Any change here will change the access control list settings.
Access control rule displays setting options based on the filtering type used:
IP-Based
After configuring, click Add button to add the rule to the list. Then, click Activate to activate the settings.
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•
Action: Whether to deny or permit access if the rule criterion is met.
•
Source IP Address/Source IP Address Mask: Defines the IP address rule. By using the mask, you can
assign specific subnet ranges to filter. It allows checking the source or destination of the packet. Choose
Any if you do not need to use this criteria.
•
IP Protocol: Select the type of protocols to be filtered. Moxa provides ICMP, IGMP, IP over IP, TCP, and
•
TCP/UDP Source Port, TCP/UDP Destination Port: If TCP or UDP are selected as the filtering protocol,
UDP as options in this field.
these fields will allow you to enter port numbers for filtering.
Once ready, click the Add button to add the rule to the list. Then, click Activate to activate the settings.
MAC-Based
•
Action: Whether to deny or permit access if the rule criterion is met.
•
Source MAC Address/Source MAC Address Mask: Defines the MAC address rule. By using the mask,
you can assign specific MAC address ranges to filter. It allows checking the source or destination of the
packet. Choose Any if you do not need to use this criteria.
•
Ethernet Type: Select the type of Ethernet protocol to filter. Options here are IPv4, ARP, RARP,
•
VLAN ID: Enter a VLAN ID you would like to filter by.
IEEE802.1Q, IPv6, IEE802.3, PROFIENT, LLDP and IEEE1588
Once ready, click the Add button to add the rule to the list. Then, click Activate to activate the settings.
Port Configuration Display
The Port Configuration Display page provides a complete view of all ACL settings. In this page, you can view the
rules by Ingress port, Egress port, or Priority Index. Click the drop-down menu to select the Port or Priority
Index, and all the rules will be displayed in the table.
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Using Event Log
The Event Log Table displays the following information:
Bootup
This field shows how many times the Moxa switch has been rebooted or cold started.
Date
The date is updated based on how the current date is set in the Basic Setting page.
Time
The time is updated based on how the current time is set in the Basic Setting page.
System
The system startup time related to this event.
Startup Time
Events
NOTE
Events that have occurred.
The following events will be recorded into the Moxa switch’s Event Log Table:
•
Cold start
•
Warm start
•
Configuration change activated
•
Power 1/2 transition (Off ( On), Power 1/2 transition (On ( Off))
•
Authentication fail
•
Topology changed
•
Master setting is mismatched
•
Port traffic overload
•
dot1x Auth Fail
•
Port link off/on
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Using Syslog
The Syslog function provides the event logs for the syslog server. The function supports 3 configurable syslog
servers and syslog server UDP port numbers. When an event occurs, the event will be sent as a syslog UDP
packet to the specified syslog servers.
Syslog Server 1/2/3
Setting
Description
Factory Default
IP Address
Enter the IP address of Syslog server 1/2/3, used by your
None
network.
Port Destination
Enter the UDP port of Syslog server 1/2/3.
514
(1 to 65535)
NOTE
The following events will be recorded into the Moxa switch’s Event Log table, and will then be sent to the
specified Syslog Server:
•
Cold start
•
Warm start
•
Configuration change activated
•
Power 1/2 transition (Off (On), Power 1/2 transition (On (Off))
•
Authentication fail
•
Topology changed
•
Master setting is mismatched
•
Port traffic overload
•
dot1x Auth Fail
•
Port link off/on
Using HTTPS/SSL
To secure your HTTP access, the Moxa switch supports HTTPS/SSL to encrypt all HTTP traffic. Perform the
following steps to access the Moxa switch’s web browser interface via HTTPS/SSL.
1. Open Internet Explorer and type https://{Moxa switch’s IP address} in the address field. Press Enter
to establish the connection.
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2. Warning messages will pop up to warn the user that the security certificate was issued by a company they
have not chosen to trust.
3. Select Yes to enter the Moxa switch’s web browser interface and access the web browser interface secured
via HTTPS/SSL.
NOTE
Moxa provides a Root CA certificate. After installing this certificate on your PC or notebook, you can access the
web browser interface directly and you will no longer see any warning messages. You may download the
certificate from the Moxa switch’s CD-ROM.
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4.
EDS Configurator GUI
EDS Configurator is a comprehensive Windows-based GUI that is used to configure and maintain multiple Moxa
switches. A suite of useful utilities is available to help you locate Moxa switches attached to the same LAN as the
PC host (regardless of whether or not you know the IP addresses of the switches), connect to a Moxa switch
whose IP address is known, modify the network configurations of one or multiple Moxa switches, and update
the firmware of one or more Moxa switch. EDS Configurator is designed to provide you with instantaneous
control of all of your Moxa switches, regardless of location. You may download the EDS Configurator software
from Moxa’s website free of charge.
The following topics are covered in this chapter:
 Starting EDS Configurator
 Broadcast Search
 Search by IP Address
 Upgrade Firmware
 Modify IP Address
 Export Configuration
 Import Configuration
 Unlock Server
Moxa Managed Ethernet Switches
EDS Configurator GUI
Starting EDS Configurator
To start EDS Configurator, locate and run the executable file edscfgui.exe. There are two ways to do this:
•
If the file was placed on the Windows desktop, it should appear as shown below. Simply double click the icon
to run the program.
•
NOTE
The Moxa EtherDevice Server Configurator window will open, as shown below.
You may download the EDS Configurator software free of charge from Moxa’s website at www.moxa.com.
Broadcast Search
Use the Broadcast Search utility to search the LAN for all Moxa switches that are connected to the LAN. Note
that since the search is done by MAC address, Broadcast Search will not be able to locate Moxa EtherDevice
switches connected outside the PC host’s LAN.
1. Start by clicking the Broadcast Search icon
, or select Broadcast Search under the List Server menu.
The Broadcast Search window will open and display a list of all switches located on the network. Look in the
Progress column to see the progress of the search.
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EDS Configurator GUI
2. Once the search is complete, the Configurator window will display a list of all switches that were located.
Search by IP Address
Use the Search by IP Address utility to search for Moxa switches one at a time. Note that the search is
conducted by IP address, so you should be able to locate any Moxa switch that is properly connected to your
LAN, WAN, or the Internet.
1. Start by clicking the Specify by IP address icon
, or by selecting Specify IP address under the List
Server menu. The Search Server with IP Address window will open. Enter the IP address of the switch
you wish to search for, and then click OK.
2. Once the search is complete, the Configurator window will add the switch to the list of switches.
Upgrade Firmware
Keep your Moxa switch up to date with the latest firmware from Moxa. Perform the following steps to upgrade
the firmware:
1. Download the updated firmware (*.rom) file from Moxa’s website (www.moxa.com).
2. Click the switch (from the Moxa EtherDevice Server Configurator window) whose firmware you wish to
upgrade to highlight it.
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EDS Configurator GUI
3. Click the Upgrade Firmware toolbar icon
, or select Upgrade under the Firmware menu. If the switch
is Locked, you will be prompted to input the switch’s User Name and Password.
4. Use the Open window to navigate to the folder that contains the firmware upgrade file, and then click the
correct “*.rom” file (eds.rom in the example shown below) to select the file. Click Open to activate the
upgrade process.
Modify IP Address
You may use the Modify IP Address function to reconfigure the Moxa switch’s network settings.
1. Start by clicking the Modify IP address icon
Configuration menu.
, or by selecting Modify IP address under the
2. The Setup Configuration window will open. Checkmark the box to the left of those items that you wish to
modify, and then Disable or Enable DHCP, and enter the IP Address, Subnet mask, Gateway, and DNS IP.
Click OK to accept the changes to the configuration.
Export Configuration
The Export Configuration utility is used to save the entire configuration of a particular Moxa switch to a text
file. Take the following steps to export a configuration:
1. Highlight the switch (from the Server list in the Configurator window’s left pane), and then click the Export
toolbar icon
or select Export Configuration from the Configuration menu. Use the Open window to
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EDS Configurator GUI
navigate to the folder in which you would like to store the configuration, and then type the name of the file
in the File name input box. Click Open to continue.
2. Click OK when the Export configuration to file OK message appears.
3. You may use a standard text editor, such as Notepad under Windows, to view and modify the newly created
configuration file.
Import Configuration
The Import Configuration function is used to import an entire configuration from a text file to the Moxa
switch. The utility can be used to transfer the configuration from one Moxa switch to another, by first using the
Export Configuration function (described in the previous section) to save a switch configuration to a file, and
then using the Import Configuration function. Perform the following steps to import a configuration:
1. Highlight the server (from the Moxa EtherDevice Switch list in the Configurator window’s left pane), and
then click the Import toolbar icon
, or select Import Configuration from the Configuration menu.
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EDS Configurator GUI
2. Use the Open window to navigate to the text file that contains the desired configuration. Once the file is
selected, click Open to initiate the import procedure.
3. The Setup Configuration window will be displayed, with a special note attached at the bottom.
Parameters that have been changed will be indicated with a checkmark. You may make more changes if
necessary, and then click OK to accept the changes.
4. Click Yes in response to the following warning message to accept the new settings.
Unlock Server
The Unlock Server function is used to open a password protected switch so that the user can modify its
configuration, import/export a configuration, and perform other procedures. There are six possible responses
under the Status column. The Status of a Moxa switch indicates how Moxa EtherDevice Switch Configurator
located the switch, and what type of password protection it has.
The six options are as follows (note that the term Fixed is borrowed from the standard fixed IP address
networking terminology):
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Moxa Managed Ethernet Switches
•
EDS Configurator GUI
Locked
The switch is password protected, Broadcast Search was used to locate it, and the password has not yet
been entered from within the current Configurator session.
•
Unlocked
The switch is password protected, Broadcast Search was used to locate it, and the password was entered
from within the current Configurator session. Henceforth during this Configurator session, activating
various utilities for this switch will not require re-entering the server password.
•
Blank
The Moxa switch is not password protected, and Broadcast Search was used to locate it.
Follow the steps given below to unlock a locked Moxa switch (i.e., Moxa switch with Status “Locked” or “Locked
Fixed”). Highlight the server (from the Moxa EtherDevice Switch list in the Configurator window’s left pane),
and then click the Unlock toolbar icon
, or select Unlock from the Configuration menu.
1. Enter the switch’s User Name and Password when prompted, and then click OK.
2. When the Unlock status window indicates the Progress as OK, click the Close button in the upper right
corner of the window.
3. The status of the switch will now be shown as Unlocked.
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A
A.
MIB Groups
The Moxa switch comes with built-in SNMP (Simple Network Management Protocol) agent software that
supports cold/warm start trap, line up/down trap, and RFC 1213 MIB-II.
The standard MIB groups that the Moxa switch supports are as follows:
MIB II.1—System Group
sysORTable
MIB II.2—Interfaces Group
ifTable
MIB II.4 – IP Group
ipAddrTable
ipNetToMediaTable
IpGroup
IpBasicStatsGroup
IpStatsGroup
MIB II.5—ICMP Group
IcmpGroup
IcmpInputStatus
IcmpOutputStats
MIB II.6—TCP Group
tcpConnTable
TcpGroup
TcpStats
MIB II.7—UDP Group
udpTable
UdpStats
MIB II.10—Transmission Group
dot3
dot3StatsTable
MIB II.11—SNMP Group
SnmpBasicGroup
SnmpInputStats
SnmpOutputStats
MIB II.17—dot1dBridge Group
dot1dBase
dot1dBasePortTable
dot1dStp
dot1dStpPortTable
dot1dTp
dot1dTpFdbTable
Moxa Managed Ethernet Switches
MIB Groups
dot1dTpPortTable
dot1dTpHCPortTable
dot1dTpPortOverflowTable
pBridgeMIB
dot1dExtBase
dot1dPriority
dot1dGarp
qBridgeMIB
dot1qBase
dot1qTp
dot1qFdbTable
dot1qTpPortTable
dot1qTpGroupTable
dot1qForwardUnregisteredTable
dot1qStatic
dot1qStaticUnicastTable
dot1qStaticMulticastTable
dot1qVlan
dot1qVlanCurrentTable
dot1qVlanStaticTable
dot1qPortVlanTable
The Moxa switch also provides a private MIB file, located in the file Moxa-[switch’s model name]-MIB.my
on the Moxa switch utility CD-ROM.
Public Traps
•
Cold Start
•
Link Up
•
Link Down
•
Authentication Failure
•
dot1dBridge New Root
•
dot1dBridge Topology Changed
Private Traps
•
Configuration Changed
•
Power On
•
Power Off
•
Traffic Overloaded
•
Turbo Ring Topology Changed
•
Turbo Ring Coupling Port Changed
•
Turbo Ring Master Mismatch
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