BGP keepalives traffic

Unanswered Question
Jun 27th, 2007

Is it possible to QOS classify BGP keepalives and give it high priority traffic ?

thank you

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
royalblues Wed, 06/27/2007 - 10:38

You cannot classify only the BGP keepalive packets and prioritize it.

You can prioritize the traffic between the peers/neighbors on TCP port 179 though



srimural Wed, 06/27/2007 - 10:45


You can match the port or use NBAR to recognice BGP Keepalives and classify it with CS6. it will be getting higher priority over everything.

Thanks and Regards,



ksnarayan43 Wed, 06/27/2007 - 10:50

Thank you.

Just wondering how do you recognize BGP keepalives packets ? is there a signature ?

I can understand regarding the BGP peer and prioritizing Dest 179

srimural Wed, 06/27/2007 - 10:58


NBAR uses port mappings as well.

Router# show ip nbar port-map

port-map bgp udp 179

port-map bgp tcp 179

port-map cuseeme udp 7648 7649

port-map cuseeme tcp 7648 7649

port-map dhcp udp 67 68

port-map dhcp tcp 67 68

which will enable it to track BGP Keepalives.

and then match teh same using protocol BGP and put it in whichever class you want with a higher priority.

Thanks and Regards,



[email protected]

Harold Ritter Wed, 06/27/2007 - 11:07

I just want to mention that BGP traffic is already assigned a IP precedence of 6 just like most control plane traffic.

Hope this helps,


This Discussion