[126872] in North American Network Operators' Group

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Re: BGP convergence problem

daemon@ATHENA.MIT.EDU (Ingo Flaschberger)
Tue Jun 8 08:35:54 2010

Date: Tue, 8 Jun 2010 14:35:12 +0200 (CEST)
From: Ingo Flaschberger <if@xip.at>
To: "Andy B." <globichen@gmail.com>
In-Reply-To: <AANLkTikpfQ7jCXpqhOP3O8eFhMyMWvbx-O9zjnSf3BH7@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Dear Andy

> This morning there was an ethernet loop problem on DECIX, causing many
> BGP sessions to flap throughout the entire platform.
> While this can happen, I am myself facing with BGP convergence
> problems on our DECIX router (SUP720-3BXL with IOS SXI3).
>
> De DECIX loop has been solved two hours ago, but my BGP sessions are
> still flapping and not converging at all. This has been flooding our
> logs, and is still going on:

route half or more of the peering-network to Null -> lowering bgp session 
up's.
(at the other side, your bgp-router seems to be overloaded).

Kind regards,
 	Ingo Flaschberger



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