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Long AS Path
- Subject: Long AS Path
- From: laszlo at heliacal.net (Laszlo Hanyecz)
- Date: Tue, 20 Jun 2017 23:52:09 +0000
- In-reply-to: <[email protected]>
- References: <[email protected]>
On 2017-06-20 23:12, James Braunegg wrote:
> Dear All
>
> Just wondering if anyone else saw this yesterday afternoon ?
>
> Jun 20 16:57:29:E:BGP: From Peer 38.X.X.X received Long AS_PATH= AS_SEQ(2) 174 12956 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 ... attribute length (567) More than configured MAXAS-LIMIT
>
> Jun 20 16:15:26:E:BGP: From Peer 78.X.X.X received Long AS_PATH= AS_SEQ(2) 5580 3257 12956 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 23456 ... attribute length (568) More than configured MAXAS-LIMIT
>
> Someone is having fun, creating weird and wonderful long AS paths based around AS 23456, we saw the same pattern of data from numerous upstream providers.
>
> Kindest Regards,
>
> James Braunegg
>
>
>
> [cid:image001.png at 01D280A4.01865B60]
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Could be this:
http://blog.ipspace.net/2009/02/root-cause-analysis-oversized-as-paths.html
- References:
- Long AS Path
- From: james.braunegg at micron21.com (James Braunegg)