North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Traffic Engineering (fwd)
> P.S.: Curtis Villamizar had another interesting approach > which involved pushing content far afield to > machines with the same transport-layer (IP) > addresses, relying upon closest-exit routing to > connect one to the topologically-closest replication > machine. Unfortunately, while this could be really > cool for NSPs to offload stuff towards peering > points (public or private), it also has some poor > scaling properties and is uncomfortably reliant > upon the stability of routing. > > If he's done any more thinking about the idea, > I'd love to hear about it though. I don't know about Curtis, but others have solved this problem (in theory) recently. We at Net Access have figured out a way (we believe) to get around the stability-of-routing issue for already-established TCP sessions in the above approach (multiple machines with the same IP externally, plus an internally different IP, each running gated to announce their /32(s) to your IGP) - hint: a question I asked on NANOG a few days back - And Alec Peterson (now of Erols) has figured out an even arguably slicker way to do it. I'll see if Merit wants to have Alec and I do a presentation on the methods @ NANOG. We should be able to implement our various solutions by then... Avi
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