Nexus 7010 CDP Issues

smolz · ‎02-16-2013

I have a pair of Nexus 7010's that I am having inconsistent CDP results with.

I have a Management port on the Admin VDC that I can see the switch that it is connected in CDP (a Cisco 3750), however on the 3750 side I can see the Nexus for a short amount of time as the nexus appears to send 1 CDP packet and then nothing. If I reset the interface, I will see one more CDP packet sent and the Nexus will appear in the CDP table on the 3750 until it times out.

I have nexus 1kv's with one connected to a vdc and another 1kv that is connected to a different vdc, only 1 vdc shows the 1kv??

Reza Sharifi · ‎02-16-2013

Does the 3750 have other neighbors that are not Nexus series? If yes, does CDP work with no issues?

smolz · ‎02-16-2013

it does and it works fine.

The Nexus does show up on the 3750, but only shortly. I can do a "show cdp traffic interface eX/X" on the nexus and see that no packets are being sent after the 1st one. If I reset the interface another cdp packet is sent, but only 1.

Reza Sharifi · ‎02-16-2013

I have the same scenario. I will check from the 3750 to neighboring Nexus 7ks and 5ks on Monday and let you know.

It maybe an OS issue on the 7k side.

smolz · ‎02-21-2013

reza, did you have a chance to look?

Reza Sharifi · ‎03-05-2013

Sorry for a very late replay. I did check the 3750 CDP table a few times and did not absorb the issue you have. Never saw the 3750's neighbors disappear.

HTH

smolz · ‎03-04-2013

Anyone else seeing these issues? Is this still present in 6.1.3?