received from neighbor X.X.X.X active 2/2 (peer in wrong AS) 0 bytes

umeshpathrwal10 · ‎12-14-2018

Hey there .... hope you are doing great. Need your assistance, am stuck with an issue. Please suggest what could be the issue.

Topology Juniper(AS9498) -------(AS137671)

Cisco configuration matches as numbers on BGP speakers on juniper and vice versa.
-->>>Juniper-BGP notification :- received NOTIFICATION code 2 (Open Message Error) sub code 0 (unspecified error)
and on Cisco -%BGP-3-NOTIFICATION: received from neighbor X.X.X. X active 2/2 (peer in wrong AS) 0 bytes

paul driver · ‎12-14-2018

Duplicate post

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Kind Regards
Paul

umeshpathrwal10 · ‎12-14-2018

Hi

Cross checked neighbor peer, configuration is correct.

I am wondering
Cisco notification has (peer in wrong AS) 2/4 bytes etc but in this case
it's 0 bytes. Why it is so??

Teck Sing · ‎08-01-2024

Hi,

That's because the remote AS configured is different from the actual AS number on peer.

- Teck Sing