10-01-2007 06:15 AM - edited 03-03-2019 06:58 PM
Hello,
I am just wondering...has any of you seen the following message. I have been getting these messages and my BGP session has been bouncing after every 1 hour.
%BGP-5-ADJCHANGE: neighbor Down BGP Notification received FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0015 0304 00
Any input or documentation will be greatly appreciated.
Regards..
Hassan...
10-01-2007 06:34 AM
Hi,
This indicates a flapping BGP peer, means the BGP neighbor went up/down.
There are many reasons the BGP peer comes up/down.
- Faulty line
- Congestion
- Router reboot
- routing loop
- others
Regards,
Dandy
10-01-2007 06:37 AM
Hello,
I agree as to there are reasons for BGP to flap.
But i have not seen the above specific message "received FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0015 0304 00" with BGP flapping. I have been trying to check what can cause this kind of error.
Thanks..
10-01-2007 07:39 AM
Quite possibly its duplex/speed mismatch on one of the links. This can cause the reset of the bgp session after a period of time.
10-01-2007 07:43 AM
This is sometimes caused by using very agressive timer values on busy router CPUs or congested links. What BGP holddown timer are you using.
Regards,
10-01-2007 08:04 AM
Hello,
You see that's the problem, this started all of a sudden. There were no changes on the network besides a workstation was added on the subnet which has access to Firewall applications and also has Sympatico or with simiar name Firewall application running on it. You think could this Workstation doing any crazy thing. I have checked the FastEthernet 0/1 which connects on the switch and same VLAN where workstation is at. There is only 25,k inbound and 60-k outbound traffic ..and no errors
Thanks
10-01-2007 08:08 AM
how bout checking the other routers interfaces?
& to be sure, can you remove the workstation and see if the problem goes away.
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