sFlow instrumentation needs to be integrated into the OpenFlow forwarding function. If the OpenFlow implementation is based on OVS then the functionality is already there. Otherwise, you would need to integrate the functionality. sFlow is very simple and does not involve much code. The OVS implementation is based on the reference sFlow v5 agent source code:
http://www.sflow.org/developers/tools.php The sFlow standard included specific support for wireless performance monitoring that you might want to consider including: http://blog.sflow.com/2010/08/wireless.html http://www.sflow.org/sflow_80211.txt 2011/5/12 杨旭 <[email protected]>: > Hi Peter, > > Thanks for sharing the link. Does openwrt support sFlow? We now have several > APs using openwrt and I want to gather data from them, how should I do? > > Best Wishes, > > Xu Yang > >>You might also want to look at using sFlow for traffic measurement. >>Many OpenFlow switches support sFlow for traffic monitoring (e.g. HP, >>NEC, OVS, etc.). Using sFlow as the measurement technology saves TCAM >>space (sFlow doesn't require any) and takes pressure off the OpenFlow >>controller since it no longer needs to poll to get real-time traffic >>information. >> >>http://blog.sflow.com/2011/05/openflow-and-sflow.html >> >>Regards, >>Peter > > _______________________________________________ > openflow-discuss mailing list > [email protected] > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss > > _______________________________________________ openflow-discuss mailing list [email protected] https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
