lecture4

# lecture4 - Alan Mislove amislove at ccs.neu.edu...

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Unformatted text preview: Alan Mislove amislove at ccs.neu.edu Northeastern University 1 CS4700/CS5700 Fundaments of Computer Networks Lecture 4: Fundamental network design issues Slides used with permissions from Edward W. Knightly, T. S. Eugene Ng, Ion Stoica, Hui Zhang Alan Mislove amislove at ccs.neu.edu Northeastern University 2 A Generic Switch incoming links outgoing links Switch Alan Mislove amislove at ccs.neu.edu Northeastern University 2 A Generic Switch incoming links outgoing links Switch How to Demultiplex? Alan Mislove amislove at ccs.neu.edu Northeastern University 2 A Generic Switch incoming links outgoing links Switch How to Demultiplex? How to Multiplex? Alan Mislove amislove at ccs.neu.edu Northeastern University 2 A Generic Switch incoming links outgoing links Switch How to Demultiplex? How to Multiplex? How to Switch? Alan Mislove amislove at ccs.neu.edu Northeastern University 3 Circuit Switching: Multiplexing/ Demultiplexing Frames 1 2 3 4 5 1 2 3 4 5 Slots = Alan Mislove amislove at ccs.neu.edu Northeastern University 3 Circuit Switching: Multiplexing/ Demultiplexing • Time divided in frames and frames divided in slots Frames 1 2 3 4 5 1 2 3 4 5 Slots = Alan Mislove amislove at ccs.neu.edu Northeastern University 3 Circuit Switching: Multiplexing/ Demultiplexing • Time divided in frames and frames divided in slots • Relative slot position inside a frame determines which conversation the data belongs to – E.g., slot 0 belongs to red conversation • Needs synchronization between sender and receiver Frames 1 2 3 4 5 1 2 3 4 5 Slots = Alan Mislove amislove at ccs.neu.edu Northeastern University 3 Circuit Switching: Multiplexing/ Demultiplexing • Time divided in frames and frames divided in slots • Relative slot position inside a frame determines which conversation the data belongs to – E.g., slot 0 belongs to red conversation • Needs synchronization between sender and receiver • In case of non-permanent conversations – Needs to dynamic bind a slot to a conservation – How to do this?...
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## This note was uploaded on 03/04/2011 for the course CS 4700 taught by Professor Mislove during the Spring '11 term at Northeastern.

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lecture4 - Alan Mislove amislove at ccs.neu.edu...

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