Thursday, July 31, 2008

Will a return to circuit switching happen?

Ah, I still have a chance to get at least one July post into this blog. I have thought about lots of topics, but skipped actually writing any comments about them, in the past six or ten weeks. I have been busy, but's that's no excuse.

I ran across an item in a college alumni magazine that mentioned something about Internet2, in support of the Large Hadron Collider world grid, or whatever that large consortium working on the data from CERN (European Center for Nuclear Research, words for the acronym come out in the French order, though, since it's in the French-speaking part of Switzerland) calls their collection of networks and computers. Turns out they're setting up temporary 10 Gigabit connections on demand, sometimes only for several minutes, for large file transfers, then shutting down that route. Sounds like circuit switching for point-to-point packet networking to me.

Maybe packet switching, or TCP/IP, just doesn't scale very well much beyond 10 Gigabit backbones?? Multiple 10 Gb connections might not work well with packet switching??

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