Hi, I have some questions on openflow mainly related to vendor hardware switches 1. The open flow controllers seem to be getting more robust and powerful. I was wondering how many flows/sec can a hardware switch (Hp Procurve,Indigo etc) process per second. 2. Can the controller overwhelm a hardware switch by sending packet out ,flow mod and flow stat commands? If it can, does openflow protocol have some mechanism where the switch and controller can exchange the limits of its processing capabilities.Example if a switch can handle only say 50 flow mod msgs/sec it can communicate to the controller at the initial handshake about this and controller restricting the flows to this limit. 3. I want to know some key performance metrics mainly related to control plane of a hardware switch. Is there some tool to measure them.I want to test some hardware switches performance. Last question, how many vendor switches support openflow now (ver 1.0 and 1.1) Is there some data sheet on the capabilities and limitations of these switches? I want to experiment with openflow on hardware switches and want to know the options present currently.
RegardsKarthik
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