< rejected by protocol ...

Ondrej Zajicek santiago at crfreenet.org
Mon May 31 10:41:54 CEST 2010


On Mon, May 31, 2010 at 10:17:52AM +0200, Arjan Filius wrote:
> Hello,
>
> Yet another question.
>
> having configured debug like:
> debug protocols { states, routes , filters}; in the global section.
>
> i see quite a lot messages on IPv4 and IPv6 bgp protocols:
> May 31 10:03:59 sbxbgpprd02 bird6: FiberRing_IPv6_111: Got UPDATE
> May 31 10:03:59 sbxbgpprd02 bird6: FiberRing_IPv6_111 > added 2001:40e8::/32 via 2a00:ec8::111 on fbr-ext--eth5
> May 31 10:03:59 sbxbgpprd02 bird6: FiberRing_IPv6_111 < rejected by protocol 2001:40e8::/32 via 2a00:ec8::111 on fbr-ext--eth5

This is OK. You got the route from BGP, it was added to the table
('> added') and then it would be propagated to the other protocols,
but protocol FiberRing_IPv6_111 rejected the route because it is
its own route (therefore it shouldn't propagate it back to its
peer). Other protocols (like kernel) didn't reject the route
and accepted it.

I think that this message about rejection of route back to
the protocol that originated the route is confusing and
uninformative, so we will probably remove it in the future.

-- 
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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