[c-nsp] Finding source of ISIS authentication failure

Aaron dudepron at gmail.com
Mon Jul 1 12:31:47 EDT 2013

debug isis
possibly add lsp at the end

On Mon, Jul 1, 2013 at 11:41 AM, John Neiberger <jneiberger at gmail.com>wrote:

> This one has me and TAC stumped. Let's say you have a 7600 with multiple
> devices connected to it running ISIS. One of them has the wrong
> authentication key, so you see a bunch of this in the logs:
> %CLNS-4-AUTH_FAIL: ISIS: LSP authentication failed
> How do you find out what neighbor is causing that? We have not found any
> show command or debug command, either ISIS or CLNS, that would show us the
> source of the problem. This is very easy in OSPF, but it's starting to look
> pretty dang hard to do with ISIS.
> Does anyone know what ninja commands or procedure I need to find the source
> of ISIS authentication failures from the router CLI?
> Thanks,
> John
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