AS0 in AS path

Valdis.Kletnieks at Valdis.Kletnieks at
Fri Aug 6 21:48:08 UTC 2010

On Fri, 06 Aug 2010 15:15:47 MDT, Mikhail Strizhov said:
> Does anybody have\had experience with BGP announces containing AS 0 in 
> AS path?
> I know that AS 0 is reserved by IANA, but  still, is it possible to 
> receive such announce messages?

After 3 decades in this business, I can make two predictions:

1) Somebody has managed to fat-finger something and announced AS0 at some point.

2) At least one vendor's gear promptly committed seppuku *after* passing the
broken announcement on to its neighbors.
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