North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Traffic locality and other questions
Sean M. Doran wrote: > > If all of these assumptions prove to be invalid, and in > particular if it is cheaper to build equipment which are > better at switching very small amounts of data across many > diverse physical paths, The cost of building a 1 Tbps/line signle data path router at the present level of technology: infinity. Everything is cheaper than that :) > if a routing scheme that can fully > exploit this can be developed, There's no need for L3 routing to be aware of multiplicity of physical paths underneath. > and if it is more > economical to use many small pipes than a few large pipes, For some reason i doubt it. The general rule -- use transmission technology presently at the bottom of price/performance @ performance curve; and replicate it accordingly to reach desireable performance level. > then obviously one would be better off not aggregating > traffic, and perhaps even deaggregating it and its > complementary reachability information. You can have deaggregated traffic and still keep aggregated reacheability information, as long as you constrain topologies to multiple-parallel-links in otherwise small general graph. There are no routing technologies which wouild scale for large general graphs, to my knowledge. --vadim
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