Have you considered using sFlow? Its a widely implemented data plane telemetry standard (supported by most merchant silicon) based on random sampling of packets. The instrumentation is independent of the control plane which has advantages. Composing OpenFlow measurement and forwarding rules is complex and if you were to push measurements over the same OpenFlow channel used to control the network device you would risk flooding the channel and causing control messages to be delayed or lost, possibly losing control of the device. Separation of telemetry and control allows both to scale independently.
If you are prototyping with Mininet, you can use the sFlow instrumentation built into Open vSwitch. In much the same way that OpenFlow shifts intelligence to an external controller, sFlow shifts analytics to an external analyzer. For your use case, the sFlow collector would receive samples of all traffic flowing through the network and it is up to the collector to aggregate the sampled packet into flows by domain. The following articles provides additional information: http://blog.sflow.com/2011/05/openflow-and-sflow.html http://blog.sflow.com/2013/08/restflow.html On Fri, Mar 4, 2016 at 5:10 AM, APOORV SHUKLA <apoorv.shukla1...@gmail.com> wrote: > Hi Folks, > > I am just trying to do sampling in openflow like sending one out of N > packets entering a network domain (it can be any flow and not just > microflow) to any collector or controller. How can I achieve that using flow > rules just by match action paradigm ? Can anybody suggest please ? > > I am trying to do it through prioritising some rules. > > Appreciate all help! Thanks! > > Warm Regards, > -Apoorv Shukla > > "A great oak is only a little nut that held its ground" > > > > > > _______________________________________________ > openflow-discuss mailing list > openflow-discuss@lists.stanford.edu > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss > _______________________________________________ openflow-discuss mailing list openflow-discuss@lists.stanford.edu https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
