OSPF: External routes (ABR vs ASBR)

Ondrej Zajicek santiago at crfreenet.org
Tue Oct 9 15:04:55 CEST 2012


On Tue, Oct 09, 2012 at 11:16:24AM +0200, Ruben Laban wrote:
> Hi list,
>
> I'm trying to figure out how bird distinguishes between imported routes  
> that are shown as "external" route directly under the router's id (in  
> "show ospf state") and those listed under the "other ASBRs" header. I  
> have different boxes showing different behavior. I just can't seem to  
> pinpoint the reason for a route show up under the "other ASBRs" header.

If current router does not have router LSA for that ASBR then its routes
are listed under "other ASBRs" header. These are usually ASBRs from
non-adjacent areas.

-- 
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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