[111893] in North American Network Operators' Group

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Re: 3/11 (invalid or corrupt AS path)

daemon@ATHENA.MIT.EDU (Dave Israel)
Mon Feb 16 12:05:58 2009

Date: Mon, 16 Feb 2009 12:03:17 -0500
From: Dave Israel <davei@otd.com>
To: Ozar <vegasnetman@gmail.com>
In-Reply-To: <8cd002180902160852k77f417a1yd6f4843488767b7c@mail.gmail.com>
X-OTD-MailScanner-From: davei@otd.com
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org


We're seeing them from AS 48438, coming across to us as an Optional
Transitive Attribute which our force-10s are not parsing (but cheerfully
passing along to our clients, who are then flapping their peers because
of it.)   Sample route; 91.210.248.0/23

Ozar wrote:
> I am starting to see random BGP neighbor messages from multiple neighbors on
> different boxes.
>
> %BGP-3-NOTIFICATION: received from neighbor X.X.X.X 3/11 (invalid or corrupt
> AS path) 516 bytes
>
> I dont see much documentation on this, and we are in the process of opening
> a TAC case, just curious if anyone else has seen these and may be able to
> shed some light.
>
> Thanks
>   


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