[c-nsp] re-advertising eBGP learned prefixes

Gert Doering gert at greenie.muc.de
Fri Oct 21 11:25:02 EDT 2011


Hi,

On Fri, Oct 21, 2011 at 05:11:47PM +0400, Andrey Koklin wrote:
> spring#sh ip bgp 10.36.72.32
> BGP routing table entry for 10.36.72.32/27, version 602983
> Paths: (1 available, best #1, table Default-IP-Routing-Table)
> Flag: 0x820
>   Not advertised to any peer
>   20485 30835, (received & used)
>     10.36.2.22 (metric 3072) from 213.129.126.1 (10.36.1.1)
>       Origin incomplete, metric 0, localpref 100, valid, internal, best
>       Originator: 10.36.1.4, Cluster list: 10.36.1.1
[..]
> spring#sh ip bgp 10.36.72.32                                  
> BGP routing table entry for 10.36.72.32/27, version 603507
> Paths: (1 available, best #1, table Default-IP-Routing-Table)
>   Advertised to update-groups:
>      1        
>   21017 44237 30835, (received & used)
>     10.36.2.22 (metric 3072) from 213.129.126.1 (10.36.1.1)
>       Origin incomplete, metric 0, localpref 100, valid, internal, best
>       Originator: 10.36.1.4, Cluster list: 10.36.1.1

I have to admit that there is nothing really obvious on why one of them
would be advertised, and the other one would not be (especially with
no output filters).

Sorry...

gert
-- 
USENET is *not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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