[isp-bgp] Re: Outbound Balancing

[jlewis@...]

On Sat, 24 Apr 2004, Serge Paquin wrote:

> What good (free) utilities are there to analyse this?

I've used cflowd.  It's not terribly userfriendly...or at least wasn't a
few years ago when I last used it.  It takes netflow data from your
router(s) and lets you see where traffic is going/coming from.

http://www.caida.org/tools/measurement/cflowd/

But you may be able to get things balanced with a few educated guesses and
some "show ip bgp" just to verify which provider is currently prefered.

Also, you probably want to use "bgp bestpath compare-routerid".  That
used to be the default, but then cisco changed it to 'oldest route wins'.
The newer behaviour really throws a wrench into your balancing act any
time either provider's BGP session restarts.

----------------------------------------------------------------------
 Jon Lewis *jlewis@...*|  I route
 Senior Network Engineer     |  therefore you are
 Atlantic Net                |
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