[c-nsp] Odd problem with bgp resets on SRD3

Paolo Lucente pl+list at pmacct.net
Mon Mar 22 08:58:13 EDT 2010 

Perhaps it's CSCtd26215. If BGP dampening is enabled, give a try disabling
it. 

Cheers,
Paolo

On Mon, Mar 22, 2010 at 01:02:59PM +0200, teslenko.andrey at gmail.com wrote:
> 
> Hello all,
> 
> We have faced the same problem when we have tried to update to version
> SRD4.
> Our hardware is  Cisco 7600 with RSP720-3CXL-GE with 2GB RAM and
> WS-X6704-10GE.
> We have observed the bgp notification in logging such as "neighbor
> 1xx.x.x.x 3/1 (update malformed)".
> The all sessions get down after that with message "Down No memory"
> 
> Who was faced with such problem also? How to solve it?
> 
> We had the following errors log occur:
> 
> %BGP-5-ADJCHANGE: neighbor 1xx.x.x.x Down BGP Notification sent
> %BGP-3-NOTIFICATION: sent to neighbor 1xx.x.x.x 3/1 (update malformed) 0
> bytes
> %BGP-4-MSGDUMP: unsupported or mal-formatted message received from
> 1xx.x.x.x: FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 004F 0200 0000 3440
> 0101 0040 0208 0203 00AE 04D7 8F11 4003 0495 068D A980 0404 0001 4C26
> 4006 00C0 0706 8F11  D018 1489 C008 0800 AE52 0800 AE55 FD18 C029 A2
> %BGP-5-ADJCHANGE: neighbor 10.x.x.x vpn vrf XX Down No memory
> %BGP_SESSION-5-ADJCHANGE: neighbor 10.x.x.x IPv4 Unicast vpn vrf IT
> topology  base removed from session  No memory
> %BGP-5-ADJCHANGE: neighbor 6x.x.x.x Down No memory
> %BGP_SESSION-5-ADJCHANGE: neighbor 6x.x.x.x IPv4 Unicast topology base
> removed  from session  No memory ...
> 
> 
> 
> Mack McBride ??????????:
> > I am looking at 2 - 7600s with RSP720-3CXLs w/ 4GB of RAM and 6708-3CXL cards running SRD3.
> > These are not currently production equipment but are connected to upstreams
> > as well as route-reflectors but are not advertising routes as we have advertisements blocked
> > with a deny-all prefix list.  We THINK the dumped BGP packet is correctly formatted and
> > the packet dumped is actually the packet before the bad packet.  Has anyone else
> > seen similar issues?  Does anyone else know if this is a known bug that exists in this code or
> > early versions of the SRD train?  I know there are entirely too many caveats in SRC5.
> > 
> > Mack McBride
> > Network Architect
> > ViaWest, Inc.
> > 
> > We had the following errors occur:
> > 
> > Log from 7600-01:
> > Nov 24 02:41:59.696 MST: %BGP-5-ADJCHANGE: neighbor 207.xx.xx.xx Down BGP Notification sent
> > Nov 24 02:41:59.696 MST: %BGP-3-NOTIFICATION: sent to neighbor 207.xx.xx.xx 3/1 (update malformed) 0 bytes
> > Nov 24 02:41:59.696 MST: %BGP-4-MSGDUMP: unsupported or mal-formatted message received from 207.xx.xx.xx:
> > FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0064 0200 0000 4940 0101 0040 0208 0203
> > 10E3 00AE 0865 4003 04CF FA73 1540 0600 C007 0608 659A 3604 36C0 0824 10E3 0033
> > 10E3 01F5 10E3 03F7 10E3 09C7 10E3 C350 FE4D 03F7 FE4E 0004 FE4F 0001 FE50 012D
> > 18C0 2104
> > Nov 24 02:41:59.748 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Down No memory
> > Nov 24 02:41:59.748 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 74.xx.xx.xx1 IPv4 Unicast topology base removed from session  No memory
> > Nov 24 02:41:59.748 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Down No memory
> > Nov 24 02:41:59.748 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 74.xx.xx.xx2 IPv4 Unicast topology base removed from session  No memory
> > Nov 24 02:41:59.748 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 207.xx.xx.xx IPv4 Unicast topology base removed from session  BGP Notification sent
> > Nov 24 02:42:06.384 MST: %BGP-5-ADJCHANGE: neighbor 207.xx.xx.xx Up
> > Nov 24 02:42:12.640 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Up
> > Nov 24 02:42:12.672 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Up
> > Nov 24 02:42:31.436 MST: %BGP-5-ADJCHANGE: neighbor 207.xx.xx.xx Down BGP Notification sent
> > Nov 24 02:42:31.436 MST: %BGP-3-NOTIFICATION: sent to neighbor 207.xx.xx.xx 3/1 (update malformed) 0 bytes
> > Nov 24 02:42:31.440 MST: %BGP-4-MSGDUMP: unsupported or mal-formatted message received from 207.xx.xx.xx:
> > FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0064 0200 0000 4940 0101 0040 0208 0203
> > 10E3 00AE 0865 4003 04CF FA73 1540 0600 C007 0608 659A 3604 42C0 0824 10E3 0033
> > 10E3 01F5 10E3 03F7 10E3 09C7 10E3 C350 FE4D 03F7 FE4E 0004 FE4F 0001 FE50 012D
> > 18C0 2104
> > Nov 24 02:42:31.504 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Down No memory
> > Nov 24 02:42:31.504 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 74.xx.xx.xx1 IPv4 Unicast topology base removed from session  No memory
> > Nov 24 02:42:31.504 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Down No memory
> > Nov 24 02:42:31.504 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 74.xx.xx.xx2 IPv4 Unicast topology base removed from session  No memory
> > Nov 24 02:42:31.504 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 207.xx.xx.xx IPv4 Unicast topology base removed from session  BGP Notification sent
> > Nov 24 02:42:38.620 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Up
> > Nov 24 02:42:38.620 MST: %BGP-5-ADJCHANGE: neighbor 207.xx.xx.xx Up
> > Nov 24 02:42:42.928 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Up
> > 
> > 7600-02:
> > Nov 24 02:42:16.343 MST: %BGP-5-ADJCHANGE: neighbor 4.xx.xx.xx Down BGP Notification sent
> > Nov 24 02:42:16.343 MST: %BGP-3-NOTIFICATION: sent to neighbor 4.xx.xx.xx 3/1 (update malformed) 0 bytes
> > Nov 24 02:42:16.343 MST: %BGP-4-MSGDUMP: unsupported or mal-formatted message received from 4.xx.xx.xx:
> > FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 005F 0200 0000 4440 0101 0040 0208 0203
> > 0D1C 00AE 0865 4003 0404 350B 8580 0404 0000 0000 4006 00C0 0706 0865 9A36 0436
> > C008 180D 1C00 030D 1C00 160D 1C00 560D 1C02 3F0D 1C02 9A0D 1C07 D818 C021 04
> > Nov 24 02:42:16.403 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 4.xx.xx.xx IPv4 Unicast topology base removed from session  BGP Notification sent
> > Nov 24 02:42:16.403 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Down No memory
> > Nov 24 02:42:16.403 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 74.xx.xx.xx1 IPv4 Unicast topology base removed from session  No memory
> > Nov 24 02:42:16.403 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Down No memory
> > Nov 24 02:42:16.403 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 74.xx.xx.xx2 IPv4 Unicast topology base removed from session  No memory
> > Nov 24 02:42:22.907 MST: %BGP-5-ADJCHANGE: neighbor 4.xx.xx.xx Up
> > Nov 24 02:42:25.551 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Up
> > Nov 24 02:42:29.107 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Up
> > 
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