Avaya IP Phone Inter-Working with Cisco L2 Switches Configuration Guide
Technical
Config
uration
Guide
Nortel IP Phone Inter-Working with Cisco L2 Switches
Nov 10th, 2008
Issue: 1.1
Nortel VoIP Clients on Cisco L2 devices Configuration Guide August 2008
Copyright © 2007-2008 Nortel Networks
All rights reserved. March 2008
The information in this document is subject to change without notice. The statements,
configurations, technical data, and recommendations in this document are believed to be
accurate and reliable, but are presented without express or implied warranty. Users must take
full responsibility for their applications of any products specified in this document. The
information in this document is proprietary to Nortel Networks Inc.
The software described in this document is furnished under a license agreement and may be
used only in accordance with the terms of that license.
Trademarks
Nortel, the Nortel logo, the Globemark, Unified Networks, and BayStack are trademarks of Nortel
Networks.
Cisco, Cisco IOS, Cisco Systems are trademarks of Cisco Systems.
Adobe and Acrobat Reader are trademarks of Adobe Systems Incorporate.
All other Trademarks are the property of their respective owners.
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Nortel VoIP Clients on Cisco L2 devices Configuration Guide August 2008
TABLE OF CONTENTS
INTRODUCTION
BASIC CONFIGURATION NOTES ................................................................................................. 4
HARDWARE AND SOFTWARE VERSIONS ................................................................................. 4
VOIP FEATURES. ........................................................................................................................... 5
INTEGRATION NOTES AND LIMITATIONS .................................................................................. 6
NETWORK TOPOLOGY ................................................................................................................. 7
POE 802.3AF POWER OVER ETHERNET OVERVIEW AND CONFIGURATION ....................... 7
PORT LINK SPEED 802.3AB CONFIGURATION ........................................................................ 13
VLAN AND QOS 802.1Q/P VOICE AND DATA ........................................................................... 14
QOS 802.1Q/P QUALITY OF SERVICE ....................................................................................... 16
DHCP DYNAMIC HOST CONFIGURATION PROTOCOL ........................................................... 21
EAPOL 802.1X (EXTENSIBLE AUTHENTICATION PROTOCOL OVER LAN) .......................... 22
LLDP 802.1AB (LINK LAYER DISCOVERY PROTOCOL) ......................................................... 25
STP 802.1W (SPANNING TREE PROTOCOL) ............................................................................ 28
............................................................................................................................. 3
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Nortel VoIP Clients on Cisco L2 devices Configuration Guide August 2008
Introduction
The purpose of this document is to detail the steps and configuration necessary for Cisco L2
devices to interoperate with Nortel IP Phones.
This document doesn’t include every possible combination of hardware, software, Protocol or
feature testing scenarios.
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Nortel VoIP Clients on Cisco L2 devices Configuration Guide August 2008
Basic Configuration Notes
The table below is based on configuration shown in the diagram on page 7, the focus of this TCG
is how to configure Cisco Cat 3750 L2 switch to interop with Nortel IP set.
1) All configurations and testing was done with IPv4
2) Command Line Interface (CLI) was used for configuration. Cisco devices support web based
configuration with limitations.
3) Configurations recommended to use with Nortel IP Phone are in bold.
4) It is assumed that you know how to configure a Nortel IP Phone, DHCP and RADIUS Server.
options.
Hardware and Software Versions
Nortel
Quantity Hardware Software Version
1 Nortel (CS 1000) Communication server 1000 (CPPM) 5.50J
1 Signaling Servers (CPPM) 5.50.12
1 (SPS) SIP proxy Server HP DL320 5.50.12
2 Nortel IP Phone 1140E 0625C4D
1 Nortel Call Server Patch(s) Deplist
1 Signaling Server Patch(s)
Cisco LAN Infrastructure
Quantity Hardware Software Version
1 Cisco 3750 L2 Switch 12.2(37)SE
Other Data Applications
Quantity Hardware Software Version
1 DHCP Server Microsoft Windows 2003 SP2
1 Cisco ACS (RADIUS) Cisco ACS 3.3
Deplist
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Nortel VoIP Clients on Cisco L2 devices Configuration Guide August 2008
VoIP Features.
• Power over Ethernet (PoE) 802.3af
• Link, Duplex, Auto-negotiate, 1000MB, 100MB, 10MB
• Virtual Local Area Networking (VLAN) tagging 802.1Q
• Quality of Service (QoS) 802.1Q/p
• Dynamic Host Configuration Protocol (DHCP)
• Extensible Authentication Protocol (EAP) 802.1x
• Link Layer Discovery Protocol (LLDP) 802.1ab
• Spanning Tree Protocol (STP) 802.1w
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Nortel VoIP Clients on Cisco L2 devices Configuration Guide August 2008
Integration Notes and Limitations
This TCG covers standalone Nortel IP Phone sets and how they can be deployed on various
Cisco switches. It will cover features on Cisco switches related to VoIP with configuration
examples. In this guide the Nortel IP Phone 1140E is configured to use both Data and Voice
VLANs.
The focus of this guide is to configure Cisco switch to interoperate with Nortel IP Phones. It is
assumed that you know how to configure the Nortel IP Phone, DHCP server and a RADIUS
Server.
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Nortel VoIP Clients on Cisco L2 devices Configuration Guide August 2008
Network Topology
PoE 802.3af Power over Ethernet Overview and Configuration
Power over Ethernet (PoE) is defined by IEEE 802.3af to deliver up to 12.95 watts over structured
cabling. The Power-over-Ethernet (PoE) technology provides electrical power via standard Cat-5
Ethernet cables, thereby eliminating the need for wall adapters or other external power sources
for equipment connected in an Ethernet network. The two major components in a PoE system are
the power sourcing equipment (PSE) that provides the power, and the powered device (PD), that
receives and uses this power.
On a Cisco Catalyst 3750 24-port PoE switch, each PoE port provides up to 15.4 W of power. On
a 48-port PoE switch, any 24 of the 48 PoE ports provide 15.4 W of power, or any combination of
ports provide an average of 7.7 W of power at the same time, up to a maximum switch power
output of 370 W.
In our setup (PSE) Power Sourcing Equipment is the Cisco 3750 L2 switch and (PD) Power
Device is the Nortel IP Phone 1140E(s).
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Nortel VoIP Clients on Cisco L2 devices Configuration Guide August 2008
IEEE 802.3af PSE and Powered Device Power Classifications
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Nortel VoIP Clients on Cisco L2 devices Configuration Guide August 2008
PoE Cisco Switch Configuration
The Cisco Catalyst 3750-24PS and 3750-48PS support 370 Watts of inline power, and should
support class 3 PDs (15.4 Watts) on 24 ports or 7.7 Watts on 48 ports. By default, the power
mode of a port is set to auto. Use the command show power inline to check the inline power
configuration and status. Please see example at the bottom of the page.
There are three modes of PoE configuration on Cisco Cat 3750 Switch.
1) Auto (Default, recommended with Nortel IP phones)
The switch automatically detects if the connected device requires power. If the switch
discovers a powered device connected to the port it grants power.
2) Static
The switch pre-allocates power to the port and guarantees that power will be available for
the port even when no powered device is connected, the switch allocates the port
configured maximum wattage. Any powered device that uses less than or equal to the
maximum wattage is guaranteed to be powered when it is connected to the static port.
However if the powered-device IEEE class is greater than the maximum wattage, the
switch does not supply power to it.
3) (Never) Off
The switch disables powered-device detection and never powers the PoE port. Use this
mode only when you want to make sure power is never applied to a PoE-capable port.
Use the following commands to configure the port for desired PoE.
From the CLI enter enable mode:-
configure terminal
interface interface-id (for 3750 interface-ID = Gi1/0/1)
power inline auto (This is the preferred configuration for Nortel IP Phones)
power inline auto max <4000-15400> milli-watts (To limit the power in auto mode)
power inline static (To turn on power to the port even if there is no PoE device detected)
power inline static max <4000-15400> milli-watts (To limit the power in static mode)
power inline never (To turn off power to the port)
power inline consumption <4000-15400> milli-watts (To set the amount of power consumption)
Use the following CLI command to see PoE port configurations.
Clab_3750#sh power inline
Module Available Used Remaining
(Watts) (Watts) (Watts)
------ --------- -------- --------1 370.0 114.8 255.2
Interface Admin (Watts) Power Class Max
Oper Device
--------- ------ ---------- ------- ------------------- ----- ---Gi1/0/1 auto on 15.4 Ieee PD 3 15.4 (Cisco reports class 3 device for 1140E)
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