[cisco-voip] Turning on LLDP and disabling CDP

[Jason Aarons (US)]

Seems some port-security bugs around LLDP-MED, but interesting.

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7975g/firmware/8_3_3/english/release/notes/75833.html#wp134580


From: Go0se [mailto:me at go0se.com]
Sent: Thursday, August 19, 2010 4:04 PM
To: Jason Aarons (US); 'cisco-voip'
Subject: RE: [cisco-voip] Turning on LLDP and disabling CDP

We have a client with HP switches that use LLDP for Cisco phones. From a Cisco perspective I believe the 7940/60 phones do not support it, and everything else has a minimum supported firmware requirement of I believe 8.3(3) if memory serves. If you have the correct firmware version it just works - there isn't any need to turn anything else on or off.

Thanks,

Go0se

My blog:
http://atc.go0se.com

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From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Jason Aarons (US)
Sent: Thursday, August 19, 2010 2:15 PM
To: cisco-voip (cisco-voip at puck.nether.net)
Subject: [cisco-voip] Turning on LLDP and disabling CDP

Will newer phones/loads get their voice vlan via lldp? Can customer's turn on LLDP and disable CDP if running Cisco Phones/Loads?

Maybe this customer has non-cisco phones...just doing LAN work for them and wondering why they want LLDP. Boss is over in Europe, local resource unsure.


Configuration of LLDP
In Voice Vlan interface
- Activate LLDP : lldp run
In each user interface
- Disengage LLDP receiving : no lldp receive
- Disengage also CDP : no cdp enable
In each uplink
- Disengage LLDP : no lldp transmit
no lldp receive
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