[c-nsp] udld fail ?

Nick Hilliard nick at foobar.org
Mon Jun 6 17:25:47 EDT 2016

james list wrote:
> Since i have also lacp fast configured, should it detect any possible
> issue before udld?

yes, by definition it will, because udld will not interoperate between
ios and junos.  If you want to detect unidirectional link failures
between ios and junos where you're using l2 only (i.e. no
ospf/isis/etc), lacp is the only game in town.

> And should it be reported in a syslog message both on cisco ios or junos?

on the cisco side, you'll get a link up/down notification because the
line protocol will drop.  On the junos side, you can get whatever
logging messages you want, but you will need to configure them in


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