Transcription of Chapter 2 Circuit and Packet Switching - Stanford …
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Chapter2 Circuitand Packet IntroductionIt is widelyassumedthat, for reasonsof e ciency, the various communicationnet-works (Internet,telephone,TV,radio, ..) will mergeinto one ubiquitous, Packet -switched network that carriesall forms of communications. Thisview of the futureis particularlyprevalent among the Internetcommunity, whereit is assumedthatpacket-switched IP is the layer over which everythingelse will be thischapter, I present evidenceso as to arguethat this will not happen. Thisstance iscontroversial,and is di cultto make concrete,as any attemptto compare the variouscandidates for the transport infrastructure1is fraught withlack of data and the dif- culty of making apples-with-applescomparisons.
Chapter 2 Circuit and Packet Switching 2.1 Introduction It is widely assumed that, for reasons of e ciency, the various communication net-works (Internet, telephone, TV, radio, ...) will merge into one ubiquitous, packet-
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