The Fundamentals of Routing

The Fundamentals of Routing

EE122 Fall 2011 Scott Shenker

Materials with thanks to Jennifer Rexford, Ion Stoica, Vern Paxson

and other colleagues at Princeton and UC Berkeley

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Announcements

? 194 is set up: 4 units: CCN: 25571

? Everyone should be off wait list by now.... ? Waiting for more accounts

o Send me email if you need one....

? Will set up bspace for 194 to hand in homework

? Open today with questions about project 1

? Hope you all handed in HW1

? HW2 out on Wednesday

? Survey will be available after Wednesday's class 2

Questions about Project 1 (for Shaddi)

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Warning....

? This lecture contains detailed calculations ? Prolonged exposure may induce drowsiness ? Do not operate heavy machinery while listening

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Where Are We?

? Motivated our basic design decisions

? Best-effort, packet-switching, blah, blah, blah

? Last lecture: how to build reliable transport on top

? This lecture: how to build the network itself

? Basic Task: deliver packets

? Need to route them, from anywhere to anywhere

? Today, we focus on routing

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