> ...snip...snip... > > > > > The answer to this may be "no way". :-) If you have a peering > session > > with the customer, why not only announce your routes from your two > other > > providers so that the customer doesn't see the routes from the one > they > > want to avoid? Wouldn't that accomplish the same thing? You could > tag > > your transit routes with a community, add the two you want to transit > to > > a community-list and then announce only the routes that match the > list. > > > > Thinking out loud, but not necessarily well. :-) > > > > And when the packets reach his routers that have all 3 provider exit > points > available, how is he going to prevent those packets from choosing the > "undesired" exit point? > > It's not a question of what he advertises to his customer, but rather > how > the forwarding decision is modified for just this customer. >
Got it! You can't adjust your upstream's FIB. So MPLS or PBR. Mike
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