Dell PowerConnect J-EX4200-24T Software Manual page 2382

Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS
Requirements
Overview
Configuration
2310
This example uses the following hardware and software components:
An IP telephone
Before you configure VoIP, be sure you have:
Installed your J-EX Series switch. See Installing and Connecting a J-EX4200 Switch.
Performed the initial switch configuration. See "Connecting and Configuring a J-EX
Series Switch (J-Web Procedure)" on page 163.
Performed basic bridging and VLAN configuration on the switch. See "Example: Setting
Up Basic Bridging and a VLAN for a J-EX Series Switch" on page 1063.
Configured the RADIUS server for 802.1X authentication and set up the access profile.
See "Example: Connecting a RADIUS Server for 802.1X to a J-EX Series Switch" on
page 2267.
(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 3021.
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
power an IP telephone by connecting it to one of the Power over Ethernet (PoE) interfaces
on the switch.
In this example, the access interface
a non-802.1X IP phone.
To configure VoIP on a J-EX Series switch to support an IP phone that does not support
802.1X authentication, add the MAC address of the phone as a static entry in the
authenticator database and set the supplicant mode to multiple.
To configure VoIP without 802.1X authentication:
for Power over Ethernet (PoE). The PoE
ge-0/0/2
statement on the interface to designate the
voip
on the J-EX4200 switch is connected to
ge-0/0/2