Strange BGP announcement.

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1

Aug 6 13:46:20 BGP RECV 207.45.199.225+179 -> 207.45.199.226+1935
Aug 6 13:46:20 BGP RECV message type 2 (Update) length 71
Aug 6 13:46:20 BGP RECV flags 0x40 code Origin(1): Incomplete
Aug 6 13:46:20 BGP RECV flags 0x40 code ASPath(2): 6453 701 65525 ((65523)) 356
1 1691
Aug 6 13:46:20 BGP RECV flags 0x40 code NextHop(3): 207.45.199.225
Aug 6 13:46:20 BGP RECV 204.174.40/24, 204.239.26/24, 204.239.27/24, 204
.239.147/24
Aug 6 13:46:20
Aug 6 13:46:20 bnp_path_attr_eer: peer 207.45.199.225 (External AS 6453) bad up
date send NOTIFY flag 0 type 0 err_subcode 11, data 0
Aug 6 13:46:20 NOTIFICATION sent to 207.45.199.225 (External AS 6453): code 3 (
Update Message Error) subcode 11 (AS path attribute problem) data
Aug 6 13:46:20
Aug 6 13:46:20 BGP SEND 207.45.199.226+1935 -> 207.45.199.225+179
Aug 6 13:46:20 BGP SEND message type 3 (Notification) length 21
Aug 6 13:46:20 BGP SEND Notification code 3 (Update Message Error) subcode 11 (
AS path attribute problem)
Aug 6 13:46:20

Regards,
Neil.

2

hi,

AS8263 encounted the same problem today. The problem is that cisco
handle this incorrect update normally, but it couses Bay Networks
routers to crash =() Seems to be another problem on the Internet.

Neil J. McRae wrote: