LLDP-MED is now supported in the 3750 switch with 12.2(37)SE. The release notes gives a description of LLDP and LLDP-MED and the Configuration Guide tells how LLDP is on by default and that through the Network Policy TLV the switch can notify the IP phone of the VLAN number to use.
But - nowhere in the Configuration Guide, or the Command Reference does it state how to configure LLDP-MED to use a VLAN number.
On my switch I want to use vlan 10 for data and vlan 910 for voice.
How do I configure the switch to use LLDP-MED to tell a connected IP phone to use VLAN 910?
I have this issue , Has anyone resolved this.
In my case I am using Nortel 1120E phones. I cant ge the Cisco 3560 running 12.2(37)SE to send the voice vlan number using LLDP-MED
Testing LLDP-MED in the lab with Nortel phones. Same result here, no dice. I see the phone under "show LLDP neighbors" but no Voice VLAN. What is the trick to making this work?
Ther is a very bad bug in the Nortel LLDP firmware, fixed in an upcoming release. I had to push Nortel but they screwed up. I have tested the new code on a 3750 and it works fine
What Changed: Status Group, Bug Status
Can any of you guys running LLDP with Nortel phones test something out for me? When I turn on port security, I've noticed it blocks the LLDP hellos from the i2004, and the devices drop out of the LLDP neighbors list. However, the phones still get their VVID from LLDP-MED. Can someone try this in their environment and verify the results. Running 12.2(44)SE.
Sample interface config
switchport access vlan 16
switchport mode access
switchport voice vlan 116
switchport port-security maximum 3
switchport port-security aging time 2
switchport port-security violation restrict
switchport port-security aging type inactivity
no logging event link-status
no logging event power-inline-status
no mdix auto
ip dhcp snooping limit rate 10
FYI - Cisco engineering has identified the bug CSCsm95859. May not be publicly accessible yet. It has to do with installing the right internal ACL for LLDP when port security is turned on.