SpectraLink NetLink 8020 Manuale utente

PN: 72-9965-00-G.doc Page 1

Aruba Mobility Controller

Configuration and Deployment Guide

SpectraLink’s Voice Interoperability for Enterprise Wireless (VIEW) Certification

Program is designed to ensure interoperability and high performance between NetLink

Wireless Telephones and WLAN infrastructure products. The products listed below

have been thoroughly tested in SpectraLink’s lab and have passed VIEW Certification.

This document details how to configure the Aruba mobility controller with NetLink

Wireless Telephones.

Certified Product Summary

Manufacturer: Aruba Networks http://www.arubanetworks.com

Approved products: Wireless Controllers Access Points

A200

A800

A2400

A6000†

AP41

AP60

AP61

AP65

AP70†

RF technology: 802.11b/g/a

Radio: 2.4 GHz (802.11 b/g), 5 GHz (802.11a)

Security: WPA2-PSK

AP firmware version tested: 2.5.4.0

Handset models tested: e340/h340/i640 8000 Series

Handset software tested: 89.134 122.010 or greater

Radio mode: 802.11b 802.11b 802.11g 802.11a

Maximum telephone calls tested per AP:

12 12*

Network topology: Switched Ethernet (recommended)

†Denotes products directly used in Certification Testing.

* Maximum calls tested during VIEW Certification and the recommended setting in the SVP Server. The

certified product may actually support a higher number of calls for 802.11a and 802.11g radio modes.

Service Information

If you encounter difficulties or have questions regarding the configuration process,

please contact Aruba Networks technical support at 1-800-943-4526, visit

www.arubanetworks.com/support or e-mail [email protected].

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Network Topology

The following topology was tested during VIEW Certification testing.

Deployment Description

It is a SpectraLink requirement that voice users be placed on a separate VLAN (e.g.,

VLAN 10) and data users on a separate VLAN (e.g., VLAN 25). The voice and data

VLANs reside on the Aruba mobility controller and not on the access points (APs). The

user traffic is tunneled back to the Aruba controller for processing. The edge network

thus does not have to be modified to accommodate the WiFi clients and the VoWiFi

network. Map each VLAN to a unique subnet. The mobility controller (switch) IP

address needs to be set via the loopback interface setting. The Controller’s loopback

address must be a routable address so that the APs can reach this address.

Interface setting

Identify the mobility controller port that serves as the uplink port for the data VLAN.

The physical port used in this example is Fast Ethernet 1/0. This port is configured as a

trunk port with both the voice and data VLAN.

Default route

The L3 switch connected to the Aruba controller serves as the default gateway for all the

WiFi clients. Configure the default route to the next-hop gateway connected to the

mobility controller.

Physical interface

All interfaces that connect to the core networks, routers, servers and gateways need to be

set as trusted ports.

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Connecting the APs

The APs need an IP address for communication with the mobility controller. The APs

can connect to the controller over a L2 or L3 network. Ensure that DHCP is enabled on

the subnets the APs are connected to and the APs can ping the Aruba mobility

controller’s “switch IP address” from their current subnet.

Known Limitations

No limitations were discovered during VIEW Certification testing.

VIEW Certification testing verifies that the wireless telephone and the AP interoperate

at the packet level; therefore, no add-on vendor features were tested in the scope of

VIEW.

Connecting to the Mobility Controller

Command, comment, and screen text key

In the sections below you will find commands, comments, prompts, 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 Prompt, system response or other displayed information

Via console

1. Using a standard RS-232 cable, connect the Aruba mobility controller 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 to display the Aruba mobility controller login screen.

4. Enter the default login: admin and the default password: admin. These are case

sensitive.

5. Enter enable and the default password: admin to get into the command mode.

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Via the CLI

By default, only SSH (Secure Shell) access to the switch (mobility controller) is

permitted.

1. From a management system that has network connectivity to the switch, connect to

the switch using SSH:

ssh admin@<switch IP address>

2. Enter the admin password at the password prompt.

3. Type enable at the >prompt to enter the enable mode.

4. Type the enable password when prompted for a password.

Via the Web interface

Once the connectivity to the switch is verified, open a Web browser and enter the

switch’s IP address in the navigator bar.

The switch can be accessed using http, http://<switch IP Address>

or https, https://<switch IP Address>:4343.

The user is prompted with the username and password configured (in the example

above, the username/password configured is admin/admin). On successful login the

following Network Summary screen is displayed:

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Initial Setup

Before starting, please ensure that the Policy Enforcement Firewall module license is

enabled on the Aruba mobility controller. Please contact Aruba Networks for licenses

and installation information.

On power-up, the user is presented with the startup wizard:

Enter System name [Aruba800]: Aruba

Enter VLAN 1 interface IP address [172.16.0.254]:

Enter VLAN 1 interface subnet mask [255.255.255.0]:

Enter IP Default gateway [none]:

Enter Switch Role, (master|local) [master]: master

Enter Country code (ISO-3166), <ctrl-I> for supported list: US

You have chosen Country code US for United States (yes|no)?: yes

Enter Password for admin login (up to 32 chars): admin

Re-type Password for admin login: admin

Enter Password for enable mode (up to 15 chars): enable

Re-type Password for enable mode: enable

Do you wish to shutdown all the ports (yes|no)? [no]: no

Current choices are:

System name: Aruba

VLAN 1 interface IP address: 172.16.0.254

VLAN 1 interface subnet mask: 255.255.255.0

IP Default gateway: none

Switch Role: master

Country code: US

Ports shutdown: no

If you accept the changes the switch will restart!

Type <ctrl-P> to go back and change answer for any question

Do you wish to accept the changes (yes|no)yes

. . . . .

<<<<< Welcome to Aruba Wireless Networks - Aruba 800 >>>>>

. . . .

(Aruba)

User:

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Assigning an IP to the Mobility Controller

1. Connect to the switch via the CLI.

2. Login with the configured username and password, admin/admin in this example.

3. Type enable at the >prompt.

4. Type the enable password, enable in this example.

5. Type configure terminal at the #prompt.

6. Create the VLAN for the voice (vlan 25) using the VLAN command:

(Aruba) (config) #vlan 25

7. Create the VLAN interface.

(Aruba) (config) #interface vlan 25

8. Assign the IP address to the interface.

(Aruba) (config-subif)#ip address 10.168.10.2 255.255.255.0

9. Create the loopback interface and assign an IP address to the loopback. For more

information about the loopback interface refer to the user guide.

(Aruba) (config) #interface loopback

(Aruba) (config-loop)#ip address 10.168.10.1

Switch IP Address is Modified. Switch should be rebooted now

(Aruba) (config-loop)#!

(Aruba) (config) #ip default-gateway 10.168.10.10

10. Assign a physical interface to the VLAN. In this example, the interface connecting to

the network is a trunk interface. Configure the mode on the interface to a trunk

mode.

(Aruba) (config) #interface fastethernet 1/0

(Aruba) (config-if)#trusted

(Aruba) (config-if)#no shutdown

(Aruba) (config-if)#switchport mode trunk

(Aruba) (config-if)#switchport trunk allowed vlan add 10,25

(Aruba) (config-if)#!

(Aruba) (config)#

11. Ping the default gateway from the switch’s console.

12. Ping the switch’s IP address from the management station.

Connecting APs

Provisioning APs

The APs need to be provisioned. The Aruba APs can be provisioned manually or be

configured for automatic provisioning. For manual provisioning, use the Web-based AP

provisioning Web page. Refer to the

AP Provisioning User Guide

for instructions on

provisioning the AP.

The APs can communicate with the controller over a L2 or L3 network. The only

requirement is that each AP be assigned an IP address and default gateway using DHCP.

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SSID Configuration

CLI command configuration

APs can be configured using the CLI or the Web interface. Each AP is identified by a

unique location code. The APs can either be configured per location with unique settings

using the AP’s unique location code or globally using the wildcard location. “0” is used

as the wildcard.

Example: ap location 0.0.0 will configure all Aruba APs on the WLAN system.

Both the Aruba APs and the Spectralink handsets support the 802.11a and the

802.11b/g radios. To apply the SSID to both bands configure the SSID as follows:

configure terminal

ap location x.y.z

virtual-ap aruba vlan-id 26 opmode wpa2-aes-psk

wpa-passphrase thisisthekey dtim-period 3

If the voice network needs to exist only in the 802.11a band , configure the virtual AP

under the 802.11a settings on the controller.

configure terminal

ap location x.y.z

phy-type a virtual-ap aruba vlan-id 26 opmode wpa2-aes-psk

wpa-passphrase thisisthekey dtim-period 3

If the voice network needs to exist only in the 802.11g band, configure the virtual AP

under the 802.11g settings on the controller.

configure terminal

ap location x.y.z

phy-type g virtual-ap aruba vlan-id 26 opmode wpa2-aes-psk

wpa-passphrase thisisthekey dtim-period 3

To save changes, enter:

write mem

Web-based configuration

1. Click the Configuration button.

2. In the navigation pane, select Network from the WLAN sub-menu.

a. To edit an existing AP profile, click the Edit button corresponding to the SSID.

b. To add a new profile, click the Add button.

3. Under Add SSID, enter aruba in the SSID field.

4. Select 802.11a/b/g from the Radio Type drop-down list to apply the SSID settings

to the a/b/g radio.

5. For the SSID Default VLAN, enter the voice VLAN number.

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6. For the DTIM Period, enter 3.

7. Select the AES-CCM option for WPA2-AES-PSK encryption.

8. Under WPA2, select the PSK AES-CCM option.

9. Select PSK Passphrase (alphanumeric) from the Format drop-down list before

typing in the passphrase.

10. Enter the PSK AES Key/Passphrase.

11. Click the Apply button.

Navigating to other pages without saving/applying the changes will result in

the loss of the changes.

Access Point Configuration

Radio setting 802.11b or 802.11g

When using the 802.11b/g band for the VoWiFi network, set the radio settings to

802.11b/g mixed mode.

Preamble settings

The tests on the Aruba system were run with the short preamble setting.

The short preamble setting can be used, as this supports both short and long

preambles. NetLink Wireless Telephones only support long preamble when

using the 802.11b radio.

When using a dual-radio AP, use the 802.11a radio for data and 802.11b/g for

voice if possible, as this will improve the overall performance.

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Channel and Tx power

Channel and Tx power level can be manually set or configured to be assigned

automatically depending on the RF environment. Please consult your facility’s RF site

survey designed for voice to determine the correct channel, power and data rate settings.

NetLink Wireless Telephones require the following minimum dBm reading to support

the corresponding “Required” data rate setting in the access point.

802.11

Radio Standard

Minimum Available

Signal Strength (RSSI)

Maximum

"Required" Data Rate

-70 dBm 1 Mb/s

802.11b

-60 dBm 11 Mb/s

-63 dBm 6 Mb/s

802.11g -47 dBm 54 Mb/s

-60 dBm 6 Mb/s

802.11a -45 dBm 54 Mb/s

For additional details on RF deployment please see the

Deploying NetLink

Wireless Telephones: Best Practices

document at:

http://www.spectralink.com/resources/white_papers.jsp.

Recommended AP configuration settings

CLI Commands Required Settings Default

Settings

Description

Max-clients <x> 40 0 Max clients that can associate

with the AP.

Beacon-interval <x> Set to default 100

milliseconds

The interval at which beacons are

sent out .

dtim-period <x> 3 1 Delivery Traffic Indication

Message interval in terms of

beacon interval.

hide-essid <enable /

disable>

Enable Disable To disable the ESSID from being

broadcasted.

Max-retries 2 4 Maximum number of times the

AP tries to send a packet to the

client before discarding the

packet.

b/g-mode Mixed Mixed The radio mode of the b/g radio.

Tx-power <0-4> 0 As per the environment. This

need not be set if ARM is

enabled.

Channel <x> 1 This is the channel assigned to

the radio. Need not be set if ARM

is enabled.

PN: 72-9965-00-G.doc Page 10

CLI Commands Required Settings Default

Settings

Description

802.11b/g rates These rates should be

determined from RF site survey.

Verify you have sufficient

coverage to support data rates.

5,11

802.11b/g Tx rates These rates should be

determined from RF site survey.

Verify you have sufficient

coverage to support data rates.

1,2,5,11 The supported Tx rates for

802.11b/g.

802.11b/g rates (if

all wireless client are

802.11g)

These rates should be

determined from RF site survey.

Verify you have sufficient

coverage to support data rates.

5,11

802.11b/g Tx rates

(if all wireless client

are 802.11g)

These rates should be

determined from RF site survey.

Verify you have sufficient

coverage to support data rates.

1,2,5,11

802.11a rates These rates should be

determined from RF site survey.

Verify you have sufficient

coverage to support data rates.

6,9,12,24

802.11a Tx rates These rates should be

determined from RF site survey.

Verify you have sufficient

coverage to support data rates.

6,9,12,18,24,

36,48,54

The supported Tx rates for

802.11a.

ESSID <voice ssid as configured> Aruba This is the ESSID that the voice

devices would associate with.

Short preamble Tested: Enable

Recommended: Disable

Enable Set the short preamble to

disable, to enable long-

preamble-only support.

CLI command configuration

All of the commands listed in the CLI Commands column above must be entered under

the ap location command.

The format is:

ap location x.y.z

phy-type g (To make the changes for the “g” radio.)

commands

phy-type a (To make the changes for the “a” radio.)

commands

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