Packet drops are a part of OpenFlow port statistics. You'll want to read the spec section on port stats to understand what's available, then see if NOX has implemented them. I remember running a monitor app in the examples directory, which might be a starting point for you.
-b On Sat, Mar 19, 2011 at 8:25 AM, Yao, Yanjun <[email protected]> wrote: > Hi all, > > We built up a testbed and run several experiment on it. We now want to > measure the packet drop ratio, too. However, when we built the testbed, we > did not take this measurement into consideration. > > As our testbed works fine, we prefer to make little changes on it to get > the job done. > > For hardware part, we use the Pronto 3240 switch, one PC works as > controller, and several other PCs send packet between each pair. For > software part, we installed OpenFlow v1.0 and NOX. All our PCs just have on > Ethernet port. > > I am wondering if we can change NOX code to draw the packet drop ratio from > the switch. Or are there any other methods can let us do the job without > having too much changes on the system. > > I tried to dig it up on OpenFlow wiki, but did not find a trivial way to do > that. > > Any hint is welcomed. > > Thank you very much. > > Yours > Sincerely > > > _______________________________________________ > openflow-discuss mailing list > [email protected] > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss > >
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