Boy, It seems a bit late to jump into this conversation, but none the
less here I go..
I like to use local preferences to route specific AS's a certain way
based on percieved better routing when AS paths don't reflect that. I
don't like to use it too much in load balancing otherwise even circuits.
What I do in a case like yours is use the 'origin' flag to mark a certain
providers origin in a preferable way, so that otherwise even AS PATH's
would prefer the provider I like, rather than based on some arbitrary
value like the next hop IP address. (since the origin is way down the list
of tie-breakers and I haven't found a valid use for the recieved values
yet). If you get routes from AS 1 and AS 701, this is tricky since routes
will almost always look better via AS 1 so you're obviously doing
something already to balance that.. I might prepend '1' to the BBN
incoming routes so that it evens up with the UUNET routes (ie, I think '1
1' would be even with '701')
Regards,
nm
> So what other methods can one use to influence the routes. We have one
> router connected to AS 701 and another connected to AS 1. Each router
> prefers the external routes off of the local internet connected
> interface - so traffic is basically evenly split 50/50. Want a 80/20 or
> similar distribution.
>
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