BGP peer traffic exchange.

Mar 04, 2007 3 Replies

Hi all,



I use Cisco 7500 and Cisco Catalyst 6000 as BGP routers. Ofcourse there is no problem to read interfaces bps and pps load but I would like to get additional info about BGP peer traffic volume. Is there any MIB object which I could use to do so?



Regards, Jarek


Not really. You connect to multiple BGP peers over the same interface?

A reasonably reliable and easy way to count traffic per peer is to use MAC accounting. This should work fine on the 7500, but I don't think it's implemented on any sort of Catalyst 6000 (except maybe on SIP or ES20 cards on the Catalyst 6500/Cisco 7600).

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Otherwise you can always use Netflow export and analyze that. But this is less reliable - in particular, Netflow cannot know which of several peers on the same interface *really* sent you the flow.

Yes, I conncet multiple BGP peers over the same interface.

Thanks anyway :-)

-- Jarek

i havent looked at which boxes implement this, but Netflow v9 supports MAC addresses in the template (Cisco Cat 6500 can do Netflow v9, but there are a lot of new options to check).

Also - if this is BGP - wont the packets will have the IP address of the far end point?

And if the various BGP security options are turned on, it would be difficult for a different device to spoof that TCP connection much past the initial handshake....

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