Sponsored by the National Science Foundation 8 GEC19 March 2014 Use Flow Mods Going through the controller on every packet is inefficient Installing Flows either proactively or reactively is the right thing to do: A Flow Mod consists off : –A match on any of the 12 supported fields –A rule about what to do matched packets –Timeouts about the rules: Hard timeouts Idle timeouts –The packet id in reactive controllers
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