Internet Routing (COS 598A) Today: Telling Routers What to Do. Jennifer Rexford http://www.cs.princeton.edu/~jrex/teaching/spring2005 Tuesdays/Thursdays 11:00am-12:20pm. Outline. Drivers for changing the routing architecture Complexity Inflexibility Who wants what Operators End users
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Internet Routing (COS 598A)Today: Telling Routers What to Do
But, how should we partition function vertically?
Packet handling by routers
Forwarding, filtering, queuing
Lots of state, updated in a distributed, uncoordinated way
Who Wants What?
Removing Routing from Routers
Multiple route providers
From Karthik Lakshminarayanan’s slides
Multiple route metrics
Simple routers that have no control-plane configuration
Maybe some combination of the two makes sense?