NetPointPro Family System Manual

NetPoint Pro
Broadband Wireless Networking Solutions
NetPoint Pro n2S5S (Software version 4.0)
SYSTEM MANUAL
This document contains information that is proprietary to Netronics Technologies Inc.
No part of this publication may be reproduced, modified, or distributed without prior written
authorization of Netronics Technologies Inc.
This document is provided as is, without warranty of any kind.
Statement of Conditions
The information contained in this document is subject to change without notice.
Netronics shall not be liable for errors contained herein or for incidental or consequential damage
in connection with the furnishing, performance, or use of this document or equipment supplied
with it.
Information to User
Any changes or modifications of equipment not expressly approved by the manufacturer could
void the user's authority to operate the equipment and the warranty for such equipment.
Copyright © 2011 by Netronics. All rights reserved.
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READ THIS FIRST!
Important Safety Instructions
Read and save these instructions. Heed all warnings. Follow all instructions.
Do not defeat the safety purpose of the grounding. Only use attachments/accessories specified by the
manufacturer.
Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been
damaged in any way. For example, if the power-supply cord or plug is damaged, liquid has been spilled on
the apparatus, objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture,
it does not operate normally, or has been dropped.
This apparatus must be connected to earth ground.
Do not open the unit. There is a risk of electric shock inside.
You are cautioned that any change or modification not expressly approved in this manual could void your
authority to operate this equipment.
There are no user-serviceable parts inside. All service must be performed by qualified personnel.
The Netronics NetPoint Pro products can be installed in wet, outdoor locations. Make sure closure caps are
installed and all cable connections are securely fastened and waterproofed.
The Netronics NPP 6x2.4 G2 and NPP 6x2.4 n2C can only be used with approved antennas.
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Table of Contents
Introduction ............................................................................................................................. 6
Key Product Features ................................................................................................................. 6
Organization of this Document .................................................................................................. 7
Basic Configuration ................................................................................................................... 8
Connect and Access the Unit ................................................................................................. 8
Connecting to the unit using a Web Browser ......................................................................... 9
Web Interface ..................................................................................................................... 11
Device Configuration ............................................................................................................... 12
General Configuration ......................................................................................................... 12
IP Configuration Information ............................................................................................... 14
Software Versions ............................................................................................................... 15
Wireless Configuration ............................................................................................................ 16
Dot11Radio Setup ............................................................................................................... 16
Service Optimization ........................................................................................................... 18
Advanced ........................................................................................................................... 19
WME .................................................................................................................................. 20
Access .................................................................................................................................... 23
SSID Configuration .............................................................................................................. 23
SSID Privacy ........................................................................................................................ 25
Radius .................................................................................................................................... 27
Radius Configuration........................................................................................................... 27
Radius Authentication and Accounting ................................................................................ 28
Mesh ...................................................................................................................................... 30
General Mesh Configuration ............................................................................................... 32
Connectivity test and Stand-alone Configuration ................................................................. 33
Route ................................................................................................................................. 35
Filter................................................................................................................................... 36
Site Survey.............................................................................................................................. 37
Statistics ................................................................................................................................. 39
Associated Stations ............................................................................................................. 39
Air Occupancy ..................................................................................................................... 41
Appendix A: List of Acronyms .................................................................................................. 42
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Netronics NetPoint Pro Family System Manual
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Chapter 1
Introduction
Welcome to NetPoint Pro!
At Netronics we supply customized, carrier-class, outdoor Wi-Fi network systems to commercial
and municipal service providers worldwide. Our NetPoint Pro family of outdoor Wi-Fi access point
products delivers the world-class performance, coverage, and economics that service provider
demand. By utilizing our advanced xRF™ adaptive beamforming smart antenna technology and an
innovative cellular-style mesh architecture, our Wi-Fi solutions can dramatically reduce the
number of access points required to deliver wide-area, fully-mobile wireless broadband services
to customers.
Netronics NetPoint Pro n2S5S unit is the key enabler for the wireless solution, which relies on the
strengths of innovative XRF™ architecture. This architecture provides the coverage, capacity, and
scalability required to deliver next-generation services and overcome the limitations of existing
metro Wi-Fi solutions.
The Netronics cellular-style mesh architecture is a highly scalable topology which provides
unprecedented flexibility to service providers deploying Wi-Fi networks.
Key Product Features

Robust cellular-style mesh architecture

Tx and Rx Beamforming

Separate access & backhaul radios delivering unmatched bandwidth

xRF smart antenna engine for unmatched coverage and capacity enhancements

Advanced automatic mesh

Support for all standard security scheme
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Introduction
Chapter 1
Organization of this Document
The Netronics NetPoint Pro n2S5S System Manual offers information and instructions for quickly
configuring the NetPoint Pro n2S5S. The instructions and information are presented in one
volume as follows:
Introduction
Contains introductory information about the NetPoint Pro
n2S5S.
Basic Configuration
Describes the basic configuration for the NetPoint Pro n2S5S.
Wireless Configuration
Describes the procedures for implementing and configuring
the wireless network.
Access
Describes how to allow clients to receive broadcast messages
from various access points within the advertised SSID range.
Radius
Describes how to configure the accounting and authorization
features.
Mesh
Describes how to set up a Mesh configuration.
Site Survey
Describes how to sample the air by site-survey and pick the
best channel available.
Statistics
Describes the various statistics that are available to control
the network.
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Chapter 2
Basic Configuration
The following section describes how to set up the environment, Access the Unit Configuration
and an overview of the Web interface.
The topics include:

Connect and Access the unit

Connecting to the unit using a web browser

Overview of the Web Interface
Connect and Access the Unit
Initial configuration of the NetPoint Pro n2S5S unit is done using a standard, straight-through
Ethernet cable. The cable is connected from the RJ-45 port of a laptop or a PC to the unit’s RJ-45
port.
The IP address must first be defined to communicate with the unit. The default setting for the
unit is to obtain the IP address from a DHCP Server with no VLAN tagging. If a DHCP Server is not
available, the default IP address is set to 192.168.0.1.
When the IP address is to be obtained automatically from a DHCP server, the computer or
network that is connected to the unit must contain a DHCP Server. The network must be
configured with VLAN tagging disabled, or uses VLAN 0.
Once connected, the DHCP server will assign an IP address to the unit. Using the DHCP Server
software, this IP address can be displayed. With this IP address, the configuration of the unit can
be performed by using Telnet or a web browser.
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Basic Configuration
Chapter 2
Figure 1: Connect and Access the NetPoint Pro n2S5S
Connecting to the unit using a Web Browser
Once the cable is connected, you can access the unit with a web browser. The following web
browsers are supported:
 Internet Explorer 8


Mozilla Firefox 3.6
Google Chrome
 To log into the unit:
1. Power the unit and make sure the STAT led at the back of the Access Point is Green.
2. Open the web browser and enter the unit’s IP address in the browser URL line. (Default
IP: 192.168.0.1)
3. Once connected to the unit, a window will open requesting a User name and Password.
4. Type the User name and Password. The default values are as follows:


User name: super
Password: super
5. Once Authenticated, the initial configuration window opens.
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Basic Configuration
Chapter 2
Figure 2: Google Chrome
Figure 3: Mozilla Firefox
Figure 4: Initial Web Interface Window
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Basic Configuration
Chapter 2
Web Interface overview
The Web interface is divided into categories; each category has several associated configuration
sub-category configurations. The available categories are listed below with a brief explanation:

Device
Configure and receive basic Device information, Configure device IP and DHCP Mode and
Upgrade the AP Firmware.

Wireless
Configure the Wireless radios parameters, WME and SSID Attachment.

Access
Configure the SSIDs and their Privacy parameters.

Radius
Configure the Radius authentication and accounting servers.

Mesh
Configure the Mesh, view the mesh routes and also configure the Connectivity Test and
Stand-Alone features.

Site Survey
Perform a Site Survey on the selected interface to grade channels according to air
sampling.

Statistics
Receive information of stations connected and their statistics, also, Sample the air in realtime to view it’s status.
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Chapter 3
Device Configuration
The following section describes how to configure general device parameters such as hostname
and time, how to set an IP Address and import firmware to the device.
The topics include:



General Configuration
IP Configuration Information
Software Versions
General Configuration
Figure 5: Initial Screen - Information
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Device Configuration
Chapter 3
The initial screen contains the following information:
Model
The unit model number.
Host name
The name used to identify the network.
Date
The internal date set in the unit. The format is MM/DD/YYYY.
Time
The internal time set in the unit. The format is HH:MM.
GMT
The number of hours that the current time is offset from
GMT.
NTP
Network Time Protocol – an internet time protocol used to
synchronize computer clocks to a centralized clock (based on
the stratum level).
NTP Address
The NTP server and its IP address. Only visible if NTP is
enabled.
NTP Interval
The time (in seconds) between NTP synchronizations. Only
visible if NTP is enabled. The default is 1200 seconds.
Up time
Time since the last reboot.
Temperature
The unit’s internal temperature.
Software Version
The version number of the currently operating software.
Hardware Version
The version number of the hardware.
Serial Number
The serial number of the unit.
MAC Address
The unit’s MAC address.
When opening a service request, you will need to provide the following
information:

Model

Serial number

Hardware version

Software version
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Device Configuration
Chapter 3
IP Configuration Information
The unit can operate using either a static IP, or a dynamic IP received from a DHCP server.
Figure 6: IP Screen - Information
The Information screen contains the following information:
Configuration Type
Indicates whether the IP is configured manually or
received from a DHCP server
IP Address
The IP address of the Management VLAN
Net Mask
The subnet mask of the Management VLAN
Management VLAN
Configures the Ethernet Management VLAN ID. The
physical Ethernet interface is a VLAN trunk. Note that
VLAN ID 0 disables VLAN tagging.
Default Gateway
IP address of the default gateway
Setting the VLAN tag will cause the unit to lose communications, unless you are
connected with a VLAN switch.
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Device Configuration
Chapter 3
Software Versions
The unit maintains two software versions in two separate SW banks. In the event that there is an
issue with an upgrade, the previous version can always be reloaded.
Figure 7: Software Version screen
The Software Version upgrade screen contains the following options:
Local
Import the image by Drag & Drop or choosing a local file.
TFTP
Using a TFTP Server on the network.
URL
Using a Web Server on the network.
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Chapter 4
Wireless Configuration
The following section describes how to set up the wireless configuration on the device. There are
several different parameters that must be set.
The topics include:
 Dot11Radio Setup

Service Optimization

Advanced Configuration

Wireless Multimedia Enhancements (WME)
Dot11Radio Setup
Both of the radio interfaces are Wi-Fi, the first interface Dot11radio0 is 2.4 GHz and can act as
access only, the second interface Dot11Radio1 is 5 GHz and can be configured to be Access OR
Backhaul (Mesh mode). Also here you attach an existing SSID to the desired radio interface.
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Wireless Configuration
Chapter 4
Figure 8: Radio Interface Screen
The Radio Interface screen contains the following information:
Radio Index
Radio interface number. The first interface (Dot11radio0) is
used for 2.4 GHz communication, the second interface
(Dot11radio 1) is used for 5GHz communication.
Type
The Wi-Fi Protocol xRF is the Netronics standard, with
patented beam-forming technology.
Status
The current interface status; up (active) or down (inactive)
Mode
Actual available modes are dependent on the radio interface
type, available configuration are: 802.11a / 802.11an /
802.11an HT40 / 802.11b / 802.11g / 802.11bgn / 802.11bgn
HT40
Channel
Configures the Wi-Fi channel used on the specified radio
interface.
The actual frequencies available are dependent on the radio
interface (802.11an or 802.11b/g/n), and the region for
which the unit was manufactured.
Beacon Period
Configures the time period (in msec) between beacon
transmissions
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Wireless Configuration
Chapter 4
Service Optimization
Figure 9: Service Optimization screen
The Service Optimization parameters contain the following information:
Tx Power Attenuation
Configures the transmission power attenuation. It
decreases the transmitted power by the specified dB value.
Distance
Defines the distance (in meters) between the gateway and
the node units for the 802.11an backhaul radio interface.
For 802.11b/g/n access radio interface, this command
defines the distance between the node unit and the client
After receiving a data frame, the receiving station will send
an ACK frame to the sending station if no errors are found.
If the sending station does not receive an ACK frame within
a predetermined time, the sending station will resend the
frame.
Distance changes the ACK timeout
Auto/Manual Sensitivity
Configures the noise-floor level in dBm for the specified
radio interface. Any signal below this level is considered to
be noise, and will not be recognized.
Stations with lower sensitivity level cannot associate; manual sensitivity decreases
the coverage radius, and improved the service for the associated stations.
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Wireless Configuration
Chapter 4
Advanced
Figure 10: Advanced screen
The Advanced parameters contain the following information:
Service
Configures the Service type of the Interface, Access for
wireless access or Backhaul for Mesh Topology
Max Associated Stations
Configures the maximum number of users on a specific
interface. The default value is 250.
ERP Mode
ERP Protection allows ERP (802.11g), HR-DSSS (802.11b)
and legacy DSSS devices to co-exist within the same BSS.
Protected mode can be provided by RTS / CTS interface.
ERP mode is used to reduce collisions when there are both b- and g- clients.
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Wireless Configuration
Chapter 4
Wireless Multimedia Enhancements
Wireless Multimedia Enhancements (WME) is a method to improve Quality of Service (QoS) for
wireless communications. It complies with IEEE 802.11e; the QoS extension for 802.11
networks. WME is responsible for assigning the priority level to data packets. The priority is
based on packet categories. WME defines all packets into one of the following Access Categories
(AC):

Voice – Highest priority.

Video – High priority for video traffic, which is the higher than any other data traffic.

Best Effort – Medium priority for traffic from legacy devices or traffic from applications
or devices that lack QoS capabilities.

Background – Lowest priority for low priority traffic such as file downloads and printing
jobs.
Each AC is configured separately. The default values defined in the NetPoint Pro units prioritize
the AC as indicated above. Prioritization is based on time parameters that define the time
duration for transmission opportunities (TXOP) and the time allowed transmitting (TXOP Limit).
The parameters are as follows:

Short Inter-Frame Space (SIFS) – Time period used in determining the minimum time
between transmission opportunities (TXOP).

Arbitrary Inter-Frame Space (AIFS) – Time period for the slot that is used in determining
the minimum time between transmission opportunities (TXOP). Higher priority
categories are set to a lower number of time slots.

Contention Window (CW) – Time range that is used to determine the time between
transmission opportunities (TXOP). During the initial transmission, CW is determined
based on the set value of CWmin, which is the exponent form of the minimum CW. After
each collision CW is doubled to a maximum value that is determined by the value set for
CWmax, which is the exponent form of the maximum CW. Higher priority categories are
set to lower CW values.
CW is also referred to Random Backoff Wait. The time contributed by the CW in
determining the TXOP duration time, window of time up to the CW time. If the
exponent form of CW is 4, then the CW is 15 microseconds, and the TXOP duration can
be from the minimum TXOP to the minimum TXOP plus 15 microseconds.

Transmission Opportunity (TXOP) Limit – Time period permitted for transmission. If
transmission is not successful within this time, transmission of the packet is attempted
again after waiting the TXOP duration. Higher priority categories are set to high TXOP
Limits.
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Wireless Configuration
Chapter 4
Figure 11: Wireless WME screen
WME Mode
Enable/Disable the WME functionality.
Interface AP BSS
The WME configuration for both the access point and the
associated clients.
AP
Access point side.
BSS
Client with WME support. Most newer clients support WME.
Category
The WME category. These are:
 Best effort
 Background
 Video
 Voice
CWMin
Contention window minimum value.
CWMax
Contention window maximum value.
If CSMA/CA fails, the transmission will wait an additional time defined by the
range of Contention Window. Services with smaller Contention Windows have
more transmission opportunities than services with larger Contention Windows.
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Wireless Configuration
Chapter 4
AIFS
After sending a frame, the transmitter will wait a period of
time, defined by the designated number of time slots.
TXOP
A TXOP is a bounded time interval during which a station
can send as many frames as possible.
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Chapter 5
Access
The Access features allow clients to receive broadcast messages from various access points within
their advertised SSID range.
This section contains the following topics:
 SSID Configuration
 SSID Privacy
SSID Configuration
Figure 12: SSID Configuration screen
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Access
Chapter 5
The SSID Configuration screen contains the following fields
Index
The SSID Index. There is a maximum of up to 7 indexes.
Name
The SSID Name; maximum 32 characters.
Privacy
The SSID Privacy policy.
VLAN
The SSID VLAN ID. One VLAN can be configured per SSID.
When providing multiple services on different VLANs, the VLAN Trunk mode
should be activated on the mesh interface.
Type
There are two states for this field:
Hidden – Transmits only the MAC Address
BSSID – Transmits the SSID string in the beacon.
Fixed Rate
Configures the fixed transmission rate on the specified
interface
Remove
Deletes the SSD from the configuration.
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Access
Chapter 5
SSID Privacy
Figure 13: SSID Privacy screen
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Access
Chapter 5
The SSID Privacy screen contains the following fields:
Index
The SSID Privacy Index. There is a maximum of up to 7
indexes.
Name
The SSID Name; maximum 32 characters.
Privacy
The SSID Privacy type. The options are:
 None
 WEP
 WPA
Click to Expand
Click to view privacy details
Key Type
The key type. The options are:
 40 bit
 104 bit
Key Value
The Key value. The options for the number of characters in the
key is:
 For a 40-bit key (10*4 bits (HEX)
 For a 104-bit key (26*4 bits (HEX)
Key Management
Defines the key management type. The options are:
 EAP – Extended Authorization Protocol
 PSK – Pre-Shared Key
Protocol
Defines the WPA Protocol type. The options are:
 WPA1 – Supports WPA 1 only
 WPA2 – Supports wpa1 and WPA2
 WPA2 only – Supports WPA2 only
Passphrase
Defines the passcode that must be used during the key
handshake process for WPA encryption. The value is casesensitive, and can be between 8 and 63 characters.
Data encryption
Defines the data encryption type:
 AES – Advanced Encryption Standard (AES/CCMP)
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Chapter 6
Radius
This section describes the information that must be used to configure the Radius server. This tool is
used for accounting and user authentication.
The topics include:
 Radius Configuration
 Radius Authentication and Accounting
Radius Configuration
Figure 14: Radius Configuration screen
The Radius Configuration screen contains the following fields
Retry Primary Interval
After switching to the secondary Radius server, this interval
configures the time, in seconds, that the unit waits before retrying
the primary Radius server again (the default value is 900 seconds).
Interim Interval
Defines the frequency that the unit sends accounting updates to the
Radius server.
Max Retries
Defines the Max number of attempts to retransmit a RADIUS
message.
Retry Time
Defines the Max number of attempts to retransmit a RADIUS
message.
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Radius
Chapter 6
Radius Authentication and Accounting
This command is used to configure the parameters required to communicate with the primary and
the secondary Radius servers. For each server the authentication and accounting parameters can be
configured to permit access to the Radius servers.
The accounting services monitors and records the number of packets transmitted and received by
each authenticated client.
The WPA-EAP security must be configured before implementing the Radius server.
Figure 15: Radius Authentication and Accounting screen
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Radius
Chapter 6
The Radius Authentication and Accounting screen contains the following fields:
SSID
An existing SSID number.
Priority
Defines the priority of the Radius Servers:
1 – Configures the parameters to communicate with the primary
Radius Server.
2 - Configures the parameters to communicate with the secondary
Radius Server.
Host
IP address of the authentication or accounting Radius server.
Key
Defines the key used for Radius server security. The value is case
sensitive and can be from 5 to 63 characters.
Port
Number of the authentication or accounting port on the Radius
server: 1-65535.
This parameter is optional. The default value for authentication port
is 1812. The default value for accounting port is 1813.
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Chapter 7
Mesh
An outdoor Wi-Fi mesh network is a tree-structured network that connects wireless clients to the
core network (i.e. the wired internet service provider) via Wi-Fi base stations that are configured as
mesh nodes and mesh gateways. A mesh gateway is defined as a base station that is connected by
wire directly to the local core network and a mesh node is defined as a base station that is
connected indirectly to the core network, via other mesh node or via a mesh gateway. The figure
below illustrates a sample mesh network.
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Mesh
Chapter 7
NetPoint Pro n2S5S
Mesh Wi-Fi
Figure 16: Typical NetPoint Pro Mesh Cluster
A node’s position in a mesh network is defined in terms of how many steps it is away from the mesh
gateway. For instance, in the figure above, nodes A and C are first hop nodes and node B is a secondhop node. A Wi-Fi base station communicates using two radio interfaces. The access interface
provides clients access to the base station and the mesh interface provides mesh backhaul
communication between the base stations. For example, in the figure above, the Wi-Fi phone
communicates with node B using the access interface, and node B communicates with node A using
the mesh interface.
Base stations communicate over specific Wi-Fi channels by sending Wi-Fi data packets. A
connection’s transmission capacities are expressed in terms of bandwidth and throughput.
Bandwidth is the overall capacity of a connection. Throughput is the amount of capacity that
remains after the overhead is accounted for (i.e. traffic which is used for traffic control or security
purposes). Base-stations utilize 2.4 GHz channels for unlicensed client access, 5.8 GHz channels for
unlicensed mesh backhaul.
NetPoint Pro mesh is a layer 2 transparent solution to higher layer protocols, including IP. As a
result, layer 3 applications such as VPNs are not affected by handoff and continue to operate
seamlessly. Mesh is implemented using 802.11a channels, maximizing the efficiency and throughput
of the 802.11b/g access channels.
This section contains the following topics:

General Mesh Configuration

Route

Filter

Static Links
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Mesh
Chapter 7
General Mesh Configuration
Figure 17: General Mesh Configuration
The Mesh General screen contains the following fields:
Network ID
The name of the Mesh Network.
Defines the mesh network-id associated with the mesh network. All
units in a single mesh network must have the same specified
network id. The value is case sensitive and can be from 8 to 16
characters.
Unit Mode
Configures the gateway as either a Node or Gateway.
Advertising Status
Configures the unit as a candidate for the next hop in the mesh
network. It defines whether the unit can be used to establish a
connection to get access to the Mesh-Gateway.
Trunk
Enables the Mesh VLAN Trunk mode.
Gateway MAC Address
The MAC address of the gateway.
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Mesh
Chapter 7
Connectivity test and Stand-alone Configuration
Figure 18: Connectivity test and Stand-alone Configuration
The Mesh Connectivity test and Stand-Alone contains the following fields:
Connectivity Test Mode
Configures the mesh-gateway connectivity test. This test is typically
used to check Internet connectivity. This test is only applied when
the unit is defined as the Mesh-Gateway. The test performs a ping
command every 10 seconds. A failure occurs after 10 ping
commands fail consecutively. If the connectivity test fails, the mesh
mode will automatically switch to node mode. When the
connection is restored, the gateway will return to mesh mode
automatically.
Connectivity Test Target Host
Specify the IP of the first Target to be pinged.
Connectivity Test Target Host 2
Specify the IP of the Second target to be pinged.
Connectivity ping retry
Configure how many pings will be sent before the state will change
to LostAndBecameNode.
Connectivity timeout
Configure how many seconds should pass from last ping to
determine a ping fail (timeout).
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Mesh
Chapter 7
Connectivity interval
Configure how much time (sec) should pass between each successful
ping.
Connectivity ping fail interval
Configure how much time (sec) should pass between each unsuccessful ping.
MESH Stand Alone
When stand-alone mode is active, the device acknowledges that it
does not have communications with the gateway and disables access
to the clients.
MESH Stand Alone Status
Displays the current stand-alone status.
MESH Stand Alone Passphrase
Configures the mesh stand-alone SSID pre shared key
Connection status to the net
Display the connectivity status.
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Mesh
Chapter 7
Route
Gateway mesh routing table
Node mesh routing table
Figure 19: Mesh Route Table
The Routing Tables screen contains the following fields:
Bridging Traffic for
Nodes that are connected to the unit.
Alternative Next Hop
Optional next hop for a gateway. This can be another node or
a gateway.
Next Hop
The mode next hop. This can be another node or a gateway
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Mesh
Chapter 7
Filter
Figure 20: Mesh Filter List
The Mesh Filter screen contains the following fields:
Filter List Status
Enables the Next Hop filter. This is only applicable for mesh
nodes.
Add a new MAC Address
Permits or denies connection to the specified MAC addresses.
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Chapter 8
Site Survey
The Site Survey tool is used to determine the best channel to use. The grades that appear on the Site
Survey screen are based on Noise Floor and Load.
Figure 21: Site Survey screen
The Site Survey screen contains the following fields
Start Site Survey
Starts the Start-Survey on the Corresponding Interface
(2.4 GHz or 5 GHz)
Load
Represents the Air Utilization on the channel for both
Wi-Fi and non-Wi-Fi devices.
On the Wi-Fi, the wide channel bandwidth is 22 MHz
and the channel separation is 5 MHz, therefore every
channel effects two channels below and above.
When choosing a channel you need to take into
consideration the channels grades below and above.
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Site Survey
Chapter 8
Figure 22: Channel Separation
Noise Floor
The sensitivity level represents the noise level which
determines whether or not the client can associate with the
base station. Clients with a higher sensitivity level are able
to associate.
For example, a client with a sensitivity of -89 dBm, can
associate with a client that has a sensitivity level of -88 dBm.
It cannot associate with a client whose sensitivity is-90 dBm.
Grade
The Final Grade for the channel after calculating Noise Floor
and Load.
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Chapter 9
Statistics
The Statistics display information on a real-time basis to allow proper control and decision-making.
This section contains the following topics:
•
•
Associated Stations
Air Occupancy
Associated Stations
Figure 23: Associated Station screen
The Associated Stations screen contains the following fields:
MAC Address
The client MAC Address.
IP Address
The Client IP Address.
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Statistics
Chapter 9
Interface
The unit physical interface the client is associated with.
Protocol
The Wi-Fi protocol used between the client and the AP
(depends on what Protocol the client supports)
SSID
The SSID the client is associated with.
RSSI
The client signal received in the base station
Average Rate
The client average rate (modulation)
Received Bytes
The number of bytes downloaded by the client.
Sent Bytes
The number of bytes that were uploaded by the client.
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Statistics
Chapter 9
Air Occupancy
The air utilization status, Analyzes how much noise there is on the air on the current channel.
Figure 24: Air Occupancy screen
The Air Occupancy screen contains the following fields:
Interface
The physical radio interface.
Tx Frame Ratio
Displays the Wi-Fi load associated with transmitted frames
as a percentage of the maximum air occupancy.
Rx Frame Ratio
Displays the Wi-Fi load associated with valid received frames
as a percentage of the maximum air occupancy.
Clear Count Ratio
Displays the current Wi-Fi load as a percentage of the
maximum air occupancy. Clear count load is the summation
of the loads due to RX Frames, TX Frames and noise.
Sensitivity Level
Displays the current interface sensitivity level.
Noise Level
Configures the noise floor level in dBm for the specified
radio interface.
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Appendix A
List of Acronyms
Acronym
Explanation
802.11
A family of specifications related to wireless
networking, including: 802.11a, 802.11b, 802.11g
and 802.11n.
AP
Access Point. The hub of a wireless network.
Wireless clients connect to the access point, and
traffic between two clients must travel through
the access point. Access points are often
abbreviated to AP.
BSSID
Broadcast Service Set Identifier
CPE
Customer Premises Equipment
DHCP
Dynamic Host Configuration Protocol. A protocol
which enables a server to automatically assign an
IP address to clients so that the clients do not
have to configure the IP addresses manually.
EAP
Extensible Authentication Protocol. A standard
form of generic messaging used in 802.1X.
ESSID
Extended Service Set Identifier
SSID
Service Set Identifier, a set of characters that give
a unique name to a WLAN.
VLAN
Virtual Local Access Network
WEP
Wired Equivalent Privacy. An encryption system
created to prevent eavesdropping on wireless
network traffic.
WNC
Wireless Network Controller of the Netronics
NetPoint Pro solution.
WPA
Wi-Fi Protected Access. A modern encryption
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42
List of Acronyms
Appendix A
system created to prevent eavesdropping on
wireless network traffic. It is considered more
secure than WEP.
WPA-EAP
WPA-Extensible Authentication Protocol
WPA-PSK
WPA-Pre-Shared Key
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43
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