nanog mailing list archives

RE: anyone else seeing very long AS paths?


From: "Leland E. Vandervort" <leland () taranta discpro org>
Date: Mon, 16 Feb 2009 17:53:00 +0000 (GMT)


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                |
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