Setup LLDP on Extreme switches to recognize IP phones

Problem Description : 

Setup LLDP on Extreme switches for VoIP phones that will use the same port for both the phone and computer

 Resolution : 

LLDP is used to recognize a phone and assign it an IP on the correct VLAN assigned to VoIP (vPhone).

Make sure vPhone VLAN is created on switch with the tag 100

create vlan vPhone tag 100

The VLAN that is being used for VOIP traffic needs to be tagged on the port the phone is connected to (untagged on computer's VLAN). 

configure vlan "vPhone" add ports <port number> tagged

The following mandatory TLVs are not configured by default in EXOS:

LLDP-MED Capabilities

LLDP-MED Network Policy

LLDP-MED Extended Power-Via-MDI TLV

Use the following commands to configure them and allow the switch to communicate with the phone via LLDP:

enable lldp ports <port number>

configure lldp port <port number> advertise vendor-specific med capabilities

configure lldp port <port number> advertise vendor-specific dot1 vlan-name vlan "vPhone"

configure lldp port <port number> advertise vendor-specific med power-via-mdi (this can be excluded if not using PoE)

configure lldp port <port number> advertise vendor-specific med policy application voice vlan "vPhone" dscp 46

configure lldp port <port number> advertise system-capabilities

configure lldp port <port number> advertise vendor-specific dot1 port-protocol-vlan-id vlan "vPhone"

Additional notes:

MED: Media Endpoint Discovery

dot1: 802.1 Vlan assignment

Power via MDI: For Ethernet (PoE) or PoE+ ports, this TLV advertises the device type, power status, power class, and pin pairs used to supply power.

 Revision Date : 2/21/2017