[ILUG] Quagga temporarily drops routes after ifup eth0:1

[paul at clubi.ie]

On Fri, 10 Oct 2008, Kenn Humborg wrote:

> In fact, it's actually worse than I initially thought.  Sometimes, 
> all the OSPF routes disappear and never come back when I bring up 
> eth0:1 or do the ip addr add, but restarting ospfd gets them back. 
> I'm not in a position to look at the logs right now, but ospfd 
> moans something about not being able to find an ASBR for certain 
> routes.

First off, 0.98 is ancient. I've no idea whether it would fix your 
problem, but we could at least discount a raft of bugs if you could 
install the latest release (0.99.11 - you can build an rpm straight 
from the tarball with 'rpmbuild -tb ...').

Next, presuming the problem continues, is to figure out where things 
are going wrong:

- is zebra losing track of the interface somehow?

   'sh interface' in the zebra CLI (or vtysh)

- is ospfd?

   'sh ip ospf interface' (ospfd cli)

- are the OSPF adjacencies being affected somehow?

   'sh ip ospf neighbor'

- what about the OSPF routes?

   'sh ip ospf route'

regards,
-- 
Paul Jakma	paul at clubi.ie	paul at jakma.org	Key ID: 64A2FF6A
Fortune:
"Elvis is my copilot."
-- Cal Keegan