On Tue, Oct 2, 2012 at 9:50 AM, Ben Pfaff <[email protected]> wrote: > On Tue, Oct 02, 2012 at 09:46:19AM -0700, Dan Talayco wrote: > > On Tue, Oct 2, 2012 at 9:11 AM, Ben Pfaff <[email protected]> wrote: > > > > > This interpretation seems needlessly wasteful. It forces the switch > > > to keep an extra copy of the original flow match around, instead of > > > allowing it to convert it to an internal form and discard the > > > original. > > > > This is how the Indigo2 reference switch works. It keeps the OF state > > representation independent of the forwarding state representation > > specifically for this reason. > > You make it sound like a good thing. I still think it's needlessly > wasteful. >
Already we've seen more benefits than costs in this decision (to the extent we can estimate such tradeoffs). -Dan
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