Cell Relay Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: Rerouting of existing connections
manfredi@arl.bna.boeing.com writes: > In article <33D75E53.2D8@tcom.epfl.ch>, > Jean-Philippe Martin-Flatin <jpmf@tcom.epfl.ch> wrote: lots of text deleted.... > On your last bullet, whether IP is connectionless or connection oriented > depends only on the transport protocol (Layer 4) you use, not on the > underlying network technology. > > So, for example, UDP/IP over ATM is connectionless, > UDP/IP over Ethernet is connectionless, > TCP/IP over ATM is connection oriented, > TCP/IP over Ethernet is connection oriented. Well I definately don't agree with that, in all the books I've read IP is conectionless regardless of what it is running over! Running IP over a connection orientated lower layer gains you nothing. If the lower layer was reliable you would gain by the protocols above IP rarely needing to ask for retranmissions, though of course ATM is not reliable (and in fact has some difficult to deal with characteristics - high speed generally low error rate, coupled with large burst errors when a buffer overflows). Cheers Mark Phillips > > Bert > manfredi@arl.bna.boeing.com > > -------------------==== Posted via Deja News ====----------------------- > http://www.dejanews.com/ Search, Read, Post to Usenet |
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