Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 2905

Requirements
Overview and Topology
Copyright © 2010, Juniper Networks, Inc.
This example describes how to configure VoIP on an EX Series switch to support an Avaya
IP phone, as well as the LLDP-MED protocol and 802.1X authentication:
Requirements on page 2801
Overview and Topology on page 2801
Configuration on page 2803
Verification on page 2805
This example uses the following hardware and software components:
Junos OS Release 9.1 or later for EX Series switches
One EX Series switch acting as an authenticator port access entity (PAE). The interfaces
on the authenticator PAE form a control gate that blocks all traffic to and from
supplicants until they are authenticated.
An Avaya 9620 IP telephone that supports LLDP-MED and 802.1X
Before you configure VoIP, be sure you have:
Installed the switch. See the installation instructions for your switch.
Performed the initial switch configuration. See "Connecting and Configuring an EX
Series Switch (J-Web Procedure)" on page 201.
Performed basic bridging and VLAN configuration on the switch. See "Example: Setting
Up Basic Bridging and a VLAN for an EX Series Switch" on page 1525.
Configured the RADIUS server for 802.1X authentication and set up the access profile.
See "Example: Connecting a RADIUS Server for 802.1X to an EX Series Switch" on
page 2765.
(Optional) Configured interface
configuration is not necessary if the VoIP supplicant is using a power adapter. For
information about configuring PoE, see "Configuring PoE (CLI Procedure)" on page 3543.
NOTE: If the IP address isn't configured on the Avaya IP phone, the phone
exchanges LLDP-MED information to get the VLAN ID for the voice VLAN.
You must configure the
interface as a VoIP interface and allow the switch to forward the VLAN name
and VLAN ID for the voice VLAN to the IP telephone. The IP telephone then
uses the voice VLAN (that is, it references the voice VLAN's ID) to send a
DHCP discover request and exchange information with the DHCP server
(voice gateway).
Instead of using a regular telephone, you connect an IP telephone directly to the switch.
An IP phone has all the hardware and software needed to handle VoIP. You also can
Chapter 88: Examples: Access Control Configuration
ge-0/0/2 for Power over Ethernet (PoE). The PoE
voip statement on the interface to designate the
2801