Dynamic routes from OSPF disappear

Ondrej Zajicek santiago at crfreenet.org
Thu Jun 26 12:31:25 CEST 2014


On Thu, Jun 26, 2014 at 11:04:19AM +0200, Gregor Kališnik wrote:
> On Thursday 26 of June 2014 11:27:08 Ondrej Zajicek wrote:
> > On Wed, Jun 25, 2014 at 07:47:24PM +0200, Gregor Kališnik wrote:
> > > Hi.
> > > 
> > > I've checked and both agree on the same DR router (in bird checked the
> > > show
> > > ospf interface).
> > 
> > Are you sure? According to BIRD output you sent, BIRD thinks that RouterOS
> > (10.16.0.1) is DR, while RouterOS flushes its Net-LSA and does not originate
> > another (which should be done by DR).
> 
> Yes. Router said the DR is 10.16.0.1 (itself). I'll check what happens if bird 
> is DR.
> 
> If I look at the logs, router does send type 2 LSA (inside LSUPD packet), but 
> bird removes it. It does have age specified as 3600, tho.

Sending LSA with age 3600 is a way how to flush LSA from OSPF domain. So
it is RouterOS who flushed it for some reason.

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
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