[e2e] traffic engineering considered harmful
Henning G. Schulzrinne
hgs at cs.columbia.edu
Tue Jun 12 17:19:42 PDT 2001
grenville armitage wrote:
> Manish Karir wrote:
> > think about it...if you spend millions building
> > out your network, would you let somebody else control it??
> If one was in a monopoly situation, the answer is obvious.
> But perhaps Jon's suggestion makes more sense if you think
> of the user selecting on a per-AS basis, rather than literal
> hops inside any particular provider's million dollar network.
> Start with something simple like an end user architecture that
> supports minute by minute choice/re-choice of one's first/last-hop
> provider. The network operator(s) would get to keep control of
> *their* networks, but would have to compete to be chosen as
> *the* network by educated consumers. Scaling the "informed choice"
> aspect of this model is left as an exercise for the reader...
> (in the US phone system "informed choice" appears to involve
> advertising imploring us to "dial 1800CALLATT" or "1010<blah>"
> for some price point or other. There's a lesson in there
Isn't that what multihoming does, with the edge router rather than the
user making the choice? How does this differ from (particularly) IPv6
loose source routing?
Henning Schulzrinne http://www.cs.columbia.edu/~hgs
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