Yes, you can do this. Take a look at the OpenFlow 1.0 specification; specifically the ofp_stats_request message.
Basically, you send a stats request with the type set to OFPST_FLOW and the body as an ofp_flow_stats_request. For the ofp_flow_stats_request, set the match to have all fields wildcarded. The response will be an array of ofp_flow_stats messages describing all the flows in the table. In Python, I think you can do this using your component's self.ctxt.send_stats_request() (see pycontext.cc) after using self.register_for_flow_stats_in() to register a handler. Hope that helps. -- Murphy On Dec 23, 2011, at 2:39 AM, ali ahmad wrote: > Hi, I am working on a topology in which multiple open-flow switches are > connected to a centralized NOX controller. I wish to cross compare flow table > from multiples open flow switches. Do openflow switch has the ability to send > its flowtable to controller or there is some easier way to do it . > > Regards, > Ali Ahmad > _______________________________________________ > nox-dev mailing list > nox-dev@noxrepo.org > http://noxrepo.org/mailman/listinfo/nox-dev
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