[111901] in North American Network Operators' Group
RE: anyone else seeing very long AS paths?
daemon@ATHENA.MIT.EDU (Leland E. Vandervort)
Mon Feb 16 12:53:14 2009
Date: Mon, 16 Feb 2009 17:53:00 +0000 (GMT)
From: "Leland E. Vandervort" <leland@taranta.discpro.org>
To: Jon Lewis <jlewis@lewis.org>
In-Reply-To: <Pine.LNX.4.61.0902161239130.6312@soloth.lewis.org>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
bgp maxas-limit has a default value of 75 if you don't include it
explicitly in the config so in this case it wouldn't have made much of a
difference.
L.
On Mon, 16 Feb 2009, Jon Lewis wrote:
> On Mon, 16 Feb 2009, John van Oppen wrote:
>
> > Yep we saw the same, every customer with old IOS had their sessions die
> > to us at the same time... That always makes for an interesting time
> > when watching the NMS system...
>
> Is there a reason you don't use something like "bgp maxas-limit NN" on
> your transit sessions?
>
> We saw this too, but it stopped at our transit routers. There was
> actually another a few days ago.
>
> Feb 13 18:46:07: %BGP-6-ASPATH: Long AS path 4323 1299 12887 12741 39412
> 39625 39625 39625 39625 39625 39625 39625 39625 39625 39625 39625 39625
> 39625 39625 39625 39625 39625 39625 39625 39625 39625 39625 39625 39625
> 39625 39625 39625 39625...
>
> Feb 16 11:24:53: %BGP-6-ASPATH: Long AS path 4323 3257 29113 47868 47868
> 47868 47868 47868 47868 47868 47868 47868 47868 47868 47868 47868 47868
> 47868 47868 47868 47868 47868 47868 47868 47868 47868 47868 47868 47868
> 47868 47868 47868 47868...
>
>
> ----------------------------------------------------------------------
> Jon Lewis | I route
> Senior Network Engineer | therefore you are
> Atlantic Net |
> _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
>
