Polycom TRAPEZE NETWORKS 1725-36060-001 Manual de usuario

June 2008 Edition

1725-36060-001

Version D

VIEW Certified Configuration Guide

Trapeze Networks

Mobility System for MP-422 Access Points

Configuration Guide

PN: 1725-36060-001_D.doc

Trademark Information

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Trapeze Networks: Mobility System for MP 422 Access Points

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Introduction

Polycom’s Voice Interoperability for Enterprise Wireless (VIEW)

Certification Program is designed to ensure interoperability and high

performance between SpectraLink Wireless Telephones and wireless

LAN (WLAN) infrastructure products.

The products listed below have been thoroughly tested in Polycom’s

lab and have passed VIEW Certification. This document details how

to configure the Trapeze Networks Mobility Exchange (MX) switch

and Mobility Point (MP) access point (AP) with SpectraLink Wireless

Telephones.

Certified Product Summary

Manufacturer: Trapeze Networks: www.trapezenetworks.com

WLAN switches Access pointsApproved products: MX-400

MX-216/216R

MX-200/200R

MX-20

MX-8 †

MX-8R

MXR-2

MP-422 †

Security : WPA-PSK and WPA2-PSK

MX/MP software version certified: Release 5.0.11.4

SpectraLink handset models certified: ** e340/h340/i640 8020/8030

SpectraLink handset software certified: 89.119 122.010 or greater

SpectraLink radio mode: 802.11b 802.11b 802.11g 802.11a

Maximum telephone calls per MP: 10 10 12 * 12 *

Recommended network topology: Switched Ethernet (required)

†Denotes products directly used in VIEW Certification testing

* Maximum calls tested during VIEW Certification. The certified product may actually support a higher

number of maximum calls for 802.11a and 802.11g radio modes.

** SpectraLink handset models 8020/8030, e340/h340/i640 and their OEM derivates are VIEW Certified

with the WLAN hardware and software identified in the table. Throughout the remainder of this

document they will be referred to collectively as “SpectraLink Wireless Telephones”.

Configuration Guide

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Service Information

The AP must support SpectraLink Voice Priority (SVP). Contact

your AP vendor if you need to upgrade the AP software.

If you encounter difficulties or have questions regarding the

configuration process of the Mobility Exchange, please contact

Trapeze Networks by calling 866 TRPZ TAC or

925 474 2400 or by e-mailing [email protected].

Known Limitations

During VIEW Certification testing, the following limitations were

discovered.

•RF Active Scan must be disabled on MP radios that are providing

voice services, including SpectraLink Wireless Telephones.

•You must disable Internet Group Management Protocol (IGMP)

snooping when running SpectraLink Radio Protocol (SRP), which

is used with the SpectraLink 8000 Telephony Gateway. SRP uses

multicast packets to do an SRP Check-In, which are not forwarded

through the Mobility Exchange Switch when IGMP snooping is

enabled. When a tunneled virtual LAN (VLAN) is configured over

a Layer-3 network, IGMP snooping must be disabled each time the

tunnel is established, because the virtual VLAN is established with

IGMP snooping turned on by default.

Access Point Capacity and Positioning

Please refer to the Polycom Deploying Enterprise-Grade Wi-Fi Telephony

white paper. This document covers the security, coverage, capacity

and QoS considerations necessary for ensuring excellent voice quality

with enterprise Wi-Fi networks.

For more detailed information on wireless LAN layout, network

infrastructure, QoS, security and subnets, please see the Best Practices

Guide for Deploying SpectraLink 8020/8030 Wireless Telephones. This

document identifies issues and solutions based on Polycom’s

extensive experience in enterprise-class Wi-Fi telephony, and

provides recommendations for ensuring that a network environment

is adequately optimized for use with SpectraLink 8020/8030 Wireless

Telephones.

Trapeze Networks: Mobility System for MP 422 Access Points

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Network Topology

The following topology was tested during VIEW Certification. It is

important to note that these do not necessarily represent all

“Certified” configurations.

Both Layer-2 and Layer-3 roaming were tested. Layer-3 roaming of

SpectraLink Wireless Telephones requires the use of a generic routing

encapsulation (GRE) tunnel.

SpectraLink 8000

Telephony Gateway

SpectraLink 8000

SVP Serve

SpectraLink

Wireless Telephones

Configuration Guide

PN: 1725-36060-001_D.doc

Access Point Setup and Configuration

Installing software

Trapeze Mobility Exchange firmware cannot be downloaded from the

SpectraLink website. Therefore, you must use the software that was

shipped with your product, or contact Trapeze Networks for the latest

software release.

Command, comment, and screen text key

In the sections below you will find commands, comments and system

responses or other screen-displayed information involved in the

configuration process. This key explains the text styles and symbols

used to denote them..

Text Style Denotes:

xxxxxxxx Typed command

<xxxxxxxx> Encryption key, domain name or other information

specific to your system that needs to be entered

# xxxxxxxx Comment about a command or set of commands

xxxxxxxx System response or other displayed information

Configuring the Mobility Exchange Switch

1. Using a standard RS-232 cable, connect the Mobility Exchange Switch

to the serial port of a terminal or PC.

2. Run a terminal emulation program (such as HyperTerminal) or

use a VT-100 terminal with the following configuration:

Bits per second: 9600

Data bits: 8

Parity: None

Stop bits: 1

Flow control: None

3. Press Enter three times to display the Mobility Exchange Switch login

screen, and to get past the Username prompt and the Password

prompt. There are no default usernames or passwords.

4. Type enable to enter privileged mode. There is no default

password.

Trapeze Networks: Mobility System for MP 422 Access Points

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Service profile commands (SSID & security policy setup)

WPA2-PSK

Assume you are creating service profile “vowlan-wpa2” to define the

ESSID “phones,” as well as a WPA2-PSK security policy. The

following commands are needed to setup the service for MP access

points:

set service-profile Voice ssid-name vowlan-wpa2

# sets the name of the service profile and SSID to

vowlan-wpa2

set service-profile Voice auth-fallthru last-resort

# specifies the authentication for the service

profile to open access

set service-profile Voice rsn-ie enable

# enables WPA2 security

set service-profile Voice cipher-tkip disable

# disables TKIP

set service-profile Voice cipher-ccmp enable

# enables AES / CCMP

set service-profile Voice psk-phrase <passphrase>

# defines a passphrase

set service-profile Voice auth-psk enable

# enables pre-shared key authentication

set service-profile Voice auth-dot1x disable

# disables 802.1x authentication

set service-profile Voice attr vlan-name default

# maps the handsets to the vlan named default

WPA-PSK

Assume you are creating service profile “vowlan-wpa” to define the

ESSID “phones,” as well as a WPA-PSK security policy. The following

commands are needed to setup the service for MP access points:

set service-profile Voice ssid-name vowlan-wpa

# sets the name of the service profile and SSID to

vowlan-wpa

set service-profile Voice auth-fallthru last-resort

# specifies the authentication for the service

profile to open access

set service-profile Voice wpa-ie enable

# enables WPA security

set service-profile Voice psk-phrase <passphrase>

Configuration Guide

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# defines a passphrase

set service-profile Voice auth-psk enable

# enables pre-shared key authentication

set service-profile Voice auth-dot1x disable

# disables 802.1x authentication

set service-profile Voice attr vlan-name default

# maps the handsets to the vlan named default

Radio profile commands

Assume you are creating radio profile “voice” for all radios that will

be providing voice services. The following commands are needed to

setup the radio profile for the access points:

set radio-profile voice service-profile vowlan-wpa2

# maps the service profile to the radio profile

set radio-profile voice dtim-interval 3

set radio-profile voice active-scan disable

# prevents the AP from going off-channel to scan

set radio-profile voice auto-tune channel-config disable

# disables dynamic channel tuning for radios in this

profile.

set radio-profile voice qos-mode svp

# qos mode SVP must be set for SVP to be supported

Network topology and MP access point hardware

configuration

The network topology and access point hardware configuration can

be configured using the Mobility System software. Please refer to the

Trapeze Networks Mobility System Software Configuration Quick Start

Guide or the Trapeze Mobility Exchange Installation and Basic

Configuration Guide for more information. Some useful commands are:

To create VLAN “v1” and add port 3 as a member of “v1:”

set vlan 2 name v1 port 3

# 2 is the VLAN ID (must be unique for every VLAN on

the switch)

To create a configuration for a model MP-422 access point that is

directly attached to port 1 of an MX switch:

set port type ap 1 model mp-422 poe enable

Trapeze Networks: Mobility System for MP 422 Access Points

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Radio configuration

During VIEW Certification, the MP access points were tested directly

connected to a port on the MX (e.g. port 1). The following commands

will configure a specific access point’s radio to support the voice

service:

set ap 1 radio 1 mode disable

# if the radio is currently enabled. Radio 1 is the

802.11b/g radio

set ap 1 radio 1 radio-profile voice mode enable

# maps radio to the radio-profile and enables it

MP access points that are not directly connected to a port on the MX,

which Trapeze calls a distributed access point (DAP), were not tested.

If they are desired, the radio is configured with this command:

set dap 1 radio 1 mode disable

# if the radio is currently enabled. Radio 1 is the

802.11b/g radio

set dap 1 radio 1 radio-profile voice mode enable

# maps radio to the radio-profile and enables it

SVP configuration

The following commands are needed to enable SpectraLink Voice

Priority via access control list (ACL) “SVP.”

This rule places all IP protocol 119 (SVP) traffic on class of service

(CoS) queue 7 (SVP support):

set security acl ip SVP permit cos 7 119 0.0.0.0

255.255.255.255 0.0.0.0 255.255.255.255

(Optional) This rule permits all other data traffic. Do not use if the

VLAN “v1” is dedicated to voice services. Note: There is an implicit

“deny all” rule at the end of the ACL.

set security acl ip SVP permit 0.0.0.0 255.255.255.255

set security acl map SVP vlan v1 out

# maps the ACL to VLAN v1 for outbound traffic

commit security acl SVP

# activates the ACL

Be sure to disable IGMP snooping on VLAN “v1” by using the

command:

set igmp disable vlan v1

Configuration Guide

PN: 1725-36060-001_D.doc

Subnet roaming configuration between multiple MX

switches

To set up subnet roaming between two switches, a mobility domain

must be configured on both switches. Choose one of the switches to

be the “seed” switch.

The IP addresses used in mobility domain configuration must use

the system IP address of each switch).

The following commands are performed on the seed MX switch:

set system ip-address 1.1.1.1

set mobility-domain mode seed domain-name <domain name>

set mobility-domain member 1.1.3.1

# configures the domain member

The following commands are performed on the other (member) MX

switch:

set system ip-address 1.1.3.1

set mobility-domain mode member seed-ip 1.1.1.1

Be sure to disable IGMP snooping temporarily on the MX that does

NOT have the VLAN statically configured by using the command:

set igmp disable vlan v1

# the VLAN name must be specified after the vlan

keyword

If you have a previous mobility-domain configuration that is no

longer valid, you must clear the existing mobility-domain before a

new one can be defined:

clear mobility-domain

# system will respond: Success: change accepted

show mobility-domain config

# system will respond: There is no mobility domain

configuration

To check the mobility domain, use the following command:

show mobility-domain

The system will respond:

Mobility Domain name: default

Member State

1.1.1.1 STATE_UP SEED

1.1.3.1 STATE_UP MEMBER

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