Polycom SpectraLink 1725-36032-001 Manuale di istruzioni

July 2008 Edition

1725-36032-001

Version G

SpectraLink 8000 SVP Server

SVP100

Administration Guide

for SRP

SpectraLink 8000 SVP Server: Administration Guide for SRP

PN: 1725-36032-001_G.doc

Trademark Information

Polycom® and the logo designs

SpectraLink®

LinkPlus

Link

NetLink

SVP

Are trademarks and registered trademarks

of Polycom, Inc. in the United States of

America and various countries. All other

trademarks used herein are the property of

their respective owners.

Patent Information

The accompanying product is protected by

one or more US and foreign patents and/or

pending patent applications held by

Polycom, Inc.

and pan-American copyright Conventions.

No part of this manual, or the software

described herein, may be reproduced or

transmitted in any form or by any means, or

translated into another language or format,

in whole or in part, without the express

written permission of Polycom, Inc.

Do not remove (or allow any third party to

remove) any product identification,

Every effort has been made to ensure that

the information in this document is

accurate. Polycom, Inc. is not responsible

for printing or clerical errors. Information in

this document is subject to change without

notice and does not represent a

commitment on the part of Polycom, Inc.

Notice

Polycom, Inc. has prepared this document

for use by Polycom personnel and

customers. The drawings and specifications

contained herein are the property of

Polycom and shall be neither reproduced in

whole or in part without the prior written

approval of Polycom, nor be implied to

grant any license to make, use, or sell

equipment manufactured in accordance

herewith.

Polycom reserves the right to make changes

in specifications and other information

contained in this document without prior

notice, and the reader should in all cases

consult Polycom to determine whether any

such changes have been made.

No representation or other affirmation of

fact contained in this document including

but not limited to statements regarding

capacity, response-time performance,

suitability for use, or performance of

products described herein shall be deemed

to be a warranty by Polycom for any

purpose, or give rise to any liability of

Polycom whatsoever.

Contact Information

Please contact your Polycom Authorized

Reseller for assistance.

Polycom, Inc.

4750 Willow Road,

Pleasanton, CA 94588

http://www.polycom.com

PN: 1725-36032-001_G.doc 3

About this Guide

This document explains how to configure and maintain one or more

SpectraLink 8000 SVP Servers within the SpectraLink 8000 Telephony

Gateway system.

Polycom Model Numbers

This document covers the following registered model number:

SVP100

Related Documents

SpectraLink 8000 Telephony Gateway: Administration Guide for SRP

(1725-36028-001)

SpectraLink e340/h340/i640 Wireless Telephone: Configuration and

Administration Guide (SRP) (72-1065-09)

Available at

http://www.polycom.com/usa/en/support/voice/wi-fi/wi-fi.html

Polycom WLAN Compatibility Table (1725-36040-001)

Access Point Configuration Guide (1725-36xxx-001) where xxx indicates

a number corresponding to the type of access point)

Available at

http://www.polycom.com/usa/en/support/voice/wi-

fi/wi_fi_interoperability.html

Deploying Enterprise-Grade Wi-Fi Telephony

Available at

http://www.polycom.com/common/documents/products/voice/m

obile/bestpractices_SLNK_032708.pdf

SpectraLink 8000 SVP Server: Administration Guide for SRP

PN: 1725-36032-001_G.doc

Best Practices Guide for Deploying SpectraLink 8020/8030 Wireless

Telephones

Available at

http://www.polycom.com/common/documents/products/voice/m

obile/deployment_guide_SLNK_03-08.pdf

Customer Support

Polycom wants you to have a successful installation. If you have

questions please contact the Customer Support Hotline at

(800) 775-5330. The hotline is open Monday through Friday,

6 a.m. to 6 p.m. Mountain time.

For Technical Support: [email protected]

For Knowledge Base:

http://www.polycom.com/usa/en/support/voice/voice.html

Icons and Conventions

This manual uses the following icons and conventions.

Caution! Follow these instructions carefully to avoid danger.

Note these instructions carefully.

Label This typeface indicates a key, label, or button on SpectraLink

hardware.

PN: 1725-36032-001_G.doc 5

Contents

0About this Guide ......................................................................3

Polycom Model Numbers..................................................................3

Related Documents.............................................................................3

Customer Support...............................................................................4

Icons and Conventions.......................................................................4

1SpectraLink 8000 SVP Server Overview ....................................7

SpectraLink Voice Priority (SVP) and Quality of Service ............7

Multiple SVP Servers..........................................................................8

The Timing Function ..........................................................................8

SpectraLink 8000 SVP Server Capacity............................................9

Notes on System Configuration......................................................10

System Diagram ................................................................................11

System Components .........................................................................12

The Front Panel of the SVP Server..................................................14

2Installing the Spectralink 8000 SVP Server ..............................15

Required Materials............................................................................15

Locate the SVP Server.......................................................................15

Install the SVP Server .......................................................................16

3Configuring the SpectraLink 8000 SVP Server..........................19

Connecting to the SVP Server .........................................................19

The NetLink SVP-II System Menu .................................................20

SpectraLink 8000 SVP Server: Administration Guide for SRP

PN: 1725-36032-001_G.doc

Network Configuration....................................................................21

SendAll .........................................................................................22

SVP Server Configuration................................................................24

Change Password..............................................................................27

4Swapping/Adding/Deleting SVP Servers................................29

5Software Maintenance............................................................31

Software Updates..............................................................................31

6Troubleshooting via System Status Menu .................................33

Error Status ........................................................................................34

Network Status..................................................................................34

Software Version...............................................................................36

7Safety Notices ........................................................................39

8Index .....................................................................................40

PN: 1725-36032-001_G.doc

SpectraLink 8000 SVP Server

Overview

The SVP Server is an Ethernet LAN device that works with APs to

provide QoS on the wireless LAN. Voice packets to and from the

SpectraLink 8000 Wireless Telephones are intercepted by the SVP

Server and encapsulated for prioritization as they are routed to and

from the SpectraLink 8000 Telephony Gateway.

One or more SVP Servers are required in systems with five or more

SpectraLink 8000 Telephony Gateways. In systems with four or fewer

SpectraLink 8000 Telephony Gateways, the SVP Server is not required

because SVP is handled within the SpectraLink 8000 Telephony

Gateway(s).

SpectraLink Voice Priority (SVP) and

Quality of Service

SpectraLink Voice Priority (SVP) is the SpectraLink quality of service

(QoS) mechanism that is implemented in the wireless telephone and

AP to enhance voice quality over the wireless network. SVP gives

preference to voice packets over data packets on the wireless medium,

increasing the probability that all voice packets are transmitted

efficiently and with minimum delay. SVP is fully compatible with the

IEEE 802.11b standard.

SpectraLink 8000 Wireless Telephones support basic WMM (Wi-Fi

Multimedia) if also supported by the AP as part of the 802.11e

protocol. If the AP supports WMM, the wireless telephone

automatically discovers and uses it. WMM does not replace the SVP

Server.

SpectraLink 8000 SVP Server: Administration Guide for SRP

PN: 1725-36032-001_G.doc

Multiple SVP Servers

Multiple SVP Server environments are those which have more than

one SVP Server. Up to 16 SVP Servers may be installed in any one

subnet.

The Timing Function

In the SpectraLink Gateway environment, SVP Servers provide the

"timing" function for active calls. In multiple SVP Server

environments, the active calls are distributed across the SVP Servers.

The number of active SVP Servers is determined dynamically.

Whenever SVP Servers are added to or removed from the system, the

distribution of the "timing" function for active calls is affected.

The addition of an SVP Server is detected as soon as the new SVP

Server is up and running. The new SVP Server will immediately start

providing the “timing” function for the appropriate wireless

telephones. The user should not detect any change. The removal of an

SVP Server is detected within one minute. During this time, any

wireless telephone that was using the SVP Server that was removed

will be affected. If the wireless telephone was not in a call, it may lose

contact with its Gateway, resulting in a check-out/check-in sequence.

If the wireless telephone was in a call, the audio will be lost and the

call will be dropped.

SpectraLink 8000 SVP Server Overview

PN: 1725-36032-001_G.doc 9

SpectraLink 8000 SVP Server Capacity

The table below shows the capacity of SpectraLink 8000 Telephony

Gateways in a multiple SVP Server environment. The table shows the

total possible calls at 100% active calls. However, since it is unlikely

that all handsets will be in use at the same time, the table then

analyzes the number of handsets that could be installed in any given

system where 15%, 25% or 50% of the handsets are in active calls at

any one time. The calculations are not linear due to the Erlang1

calculation for telephony traffic. The possible installed handsets

figures are approximate and meant as a guideline and not as an

absolute recommendation for any facility.

Possible installed handsets

Number

SVP

Servers

Number of

calls

possible

per Server

Total

possible

installed

handsets

@ 100% in

active calls

Number of

SpectraLink

8000

Telephony

Gateways

required

Erlang @ 15% in

active

calls

@ 25% in

active

calls

@ 50% in

active

calls

1 120 120 15 103 240 240 206

2 120 240 30 111 480 480 438

3 120 3202 40 160 640 640 640

1An Erlang is a unit of telecommunications traffic measurement. Strictly speaking, an Erlang represents the

continuous use of one voice path. In practice, it is used to describe the total traffic volume of one hour.

Erlang traffic measurements are made in order to help telecommunications network designers understand traffic

patterns within their voice networks. This is essential if they are to successfully design their network topology and

establish the necessary trunk group sizes.

Erlang traffic measurements or estimates can be used to work out how many lines are required between a telephone

system and a central office (PSTN exchange lines), or between multiple network locations.

Please visit www.erlang.com for additional information.

2Limited by the eight simultaneous calls supported by each SpectraLink 8000 Telephony Gateway.

SpectraLink 8000 SVP Server: Administration Guide for SRP

PN: 1725-36032-001_G.doc

Notes on System Configuration

Wireless telephones cannot roam with uninterrupted service

between subnets unless specific LAN components are present.

Certain AP/Ethernet switch combinations establish a layer-2 tunnel

across subnets that enables the handsets to roam. Without this

capability, any call in progress will be dropped when the user

moves out of range and the handset must be power cycled in order

to resume functionality in the new subnet area.

Please see Deploying Enterprise-Grade Wi-Fi Telephony for

detailed configuration information when installing multiple SVP

Server models across several different subnets.

Subnets are not recommended in SpectraLink 8000 Telephony

Gateway environments.

IP multicast addresses are used when SpectraLink i640 and 8030

Wireless Telephones are installed. This requires that multicasting

be enabled on the subnet used for the SpectraLink 8000 Wireless

Telephones, SVP Server, and Telephony Gateways.

Routers are typically configured with filters to prevent multicast

traffic from flowing outside of specific domains. The wireless LAN

can be placed on a separate VLAN or subnet to reduce the effects

of broadcast and multicast traffic from devices in other network

segments.

The SVP Server requires a Cat. 5 cable connection between its

network port and the Ethernet switch. The SVP Server auto-

negotiates to the type of port on the Ethernet switch and supports

10Base-T, 100Base-T, full-duplex and half-duplex port types.

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