[c-nsp] Key-chain and MD5 authentication for IS-IS

[Oliver Boehmer (oboehmer)]

Leonardo Gama Souza <> wrote on Wednesday, January 23, 2008 11:10 PM:

> Hello everybody,
> 
> 
> 
> Do you know whether I have to update the key chain string after an
> IOS upgrade? 
> 
> Let´s fancy from 12.2S to 12.0S...
> 
> I'm only using it for IS-IS instance authentication.
> 
> 
> Have anyone ever run into this situation?

You shouldn't need to update the keys, but I've seen cases where this was required after an upgrade (just re-entering the same key helped). I recall there was a bug somewhere in 12.2S where this was required for all keys (IIRC)..

	oli