[c-nsp] UDLD misbehaviour

[Antonio Soares]

Were you able to find if it was a permanent failure or intermittent failure
? If it was intermittent, you will have up and down interfaces with
errdisable always trying to put the interface up and then udld putting it
down again. For this reason, the automatic recovery should be disabled. And
it seems in your case, you had it enabled with a 30 seconds timer, wasn't it
?

Regards,

Antonio Soares, CCIE #18473 (R&S/SP)
amsoares at netcabo.pt
http://www.ccie18473.net



-----Original Message-----
From: Leonardo Gama Souza [mailto:leonardo.souza at nec.com.br] 
Sent: quinta-feira, 14 de Julho de 2011 12:53
To: Andrew Koch; Antonio Soares
Cc: cisco-nsp at puck.nether.net
Subject: RES: [c-nsp] UDLD misbehaviour

I was supposing the switch would try to recover, but once it detects
unidirectional link again, it wouldn't bring up the interface.
Isn't that correct?
The neighbouring switch didn't bring up the interface and kept the
interface in errdisable state. 
Perhaps I should change the automatic recovery settings, but it really
seems that something is wrong here.

Cheers.