nanog mailing list archives
Re: Strange BGP announcement.
From: Dave Curado <davec () weezel net>
Date: Sun, 8 Nov 1998 16:06:56 -0500
Since this isn't directly my upstream's problem I've edited them out of the log (actually, this could have come from more than one of my upstreams) Nov 8 17:45:26 BGP RECV x.x.x.x+179 -> x.x.x.x+1161 Nov 8 17:45:26 BGP RECV message type 2 (Update) length 64 Nov 8 17:45:26 BGP RECV flags 0x40 code Origin(1): Incomplete Nov 8 17:45:26 BGP RECV flags 0x40 code ASPath(2): (0x02 0x07 0x0f 0x7f 0x02 0xbd 0x0d 0xa5 0x03 0x30 0x03 0x2f 0x03 0x2e) Nov 8 17:45:26 BGP RECV flags 0x40 code NextHop(3): x.x.x.x Nov 8 17:45:26 BGP RECV flags 0xc0 code Aggregator(7): 6218 206.53.128.254 Nov 8 17:45:26 BGP RECV 206.148.144/22 Nov 8 17:45:26 Nov 8 17:45:26 bnp_path_attr_eer: peer x.x.x.x (External AS yyyy) bad update send NOTIFY flag 0 type 0 err_subcode 11, data 0 Nov 8 17:45:26 NOTIFICATION sent to x.x.x.x (External AS yyyy): code 3 (Update Message Error) subcode 11 (AS path attribute problem) data Nov 8 17:45:26 Nov 8 17:45:26 BGP SEND x.x.x.x+1161 -> x.x.x.x+179 Nov 8 17:45:26 BGP SEND message type 3 (Notification) length 21 Nov 8 17:45:26 BGP SEND Notification code 3 (Update Message Error) subcode 11 (AS path attribute problem) Nov 8 17:45:26 (We saw the problem start around 1640 GMT tonight) Problem at AS6218 perhaps ? (of course if this is the result of some random corruption that can't be relied on... ) Anyone else see anything ?
Another note on this, I wasn't able to stop the updates with a filter-list... perhaps because the AS path is problematic. I had to use a distribute list instead, listing each of the networks that 6218 is aggregating for... Not sure if this affects anyone else or not, but: access-list 21 deny 206.53.128.0 0.0.3.255 access-list 21 deny 206.53.128.0 0.0.0.255 access-list 21 deny 206.53.129.0 0.0.0.255 access-list 21 deny 206.53.130.0 0.0.0.255 access-list 21 deny 206.53.131.0 0.0.0.255 access-list 21 deny 206.148.144.0 0.0.3.255 access-list 21 deny 206.190.224.0 0.0.0.255 access-list 21 permit any davec
Current thread:
- Re: Strange BGP announcement. Andrew Bangs (Nov 08)
- Re: Strange BGP announcement. Brett Frankenberger (Nov 08)
- Re: Strange BGP announcement. Scott Gifford (Nov 08)
- Re: Strange BGP announcement. Brett Frankenberger (Nov 09)
- Re: Strange BGP announcement. George Matey (Nov 09)
- Re: Strange BGP announcement. Scott Gifford (Nov 08)
- Re: Strange BGP announcement. Brett Frankenberger (Nov 08)
- <Possible follow-ups>
- Re: Strange BGP announcement. Dave Curado (Nov 08)
- Re: Strange BGP announcement. Dave Curado (Nov 08)
- Re: Strange BGP announcement. Craig A. Huegen (Nov 08)
- Re: Strange BGP announcement. Craig A. Huegen (Nov 08)
- Re: Strange BGP announcement. Andrew Bangs (Nov 09)
- Re: Strange BGP announcement. alex (Nov 08)
- Re: Strange BGP announcement. Avi Freedman (Nov 08)
- Re: Strange BGP announcement. alex (Nov 09)
- Re: Strange BGP announcement. Craig A. Huegen (Nov 08)