I have done this, and have source code available if you'd like. On 27 Apr 2015 20:55, "Murphy McCauley" <murphy.mccau...@gmail.com> wrote:
> POX presently has no special support for sFlow. But, IIRC, for the most > part, sFlow just samples packets and encapsulates them in UDP. You could > certainly extend POX to listen on a UDP socket to get the sFlow packets. > > BUT... if you're going to have a large number of sFlow packets (e.g., your > sample rate isn't going to be that low or you have a lot of switches), I > wouldn't have the packets go directly into POX. Python is not particularly > suited to sipping from a firehose. I'd be tempted to write an external > agent in C or something which runs alongside POX and gets the sFlow > packets, does application-specific aggregation/thresholding/etc. and > communicates the results to POX in a more efficient way (e.g., snapshots at > a fixed rate). > > If you want to configure the sFlow stuff on the switches from the > controller (rather than by hand), and if your switches are Open vSwitch, I > think you can do it via OVSDB. You might want to look at my POX fork on > github (MurphyMc/pox) which has some experimental OVSDB support that is > very likely to get merged into mainline POX when I have the time. > > -- Murphy > > On Apr 27, 2015, at 5:06 AM, Fahime Alizade <alizade...@gmail.com> wrote: > > > Dear all, > > > > > > I was wondering if it is possible to use sFlow along with POX? > > I need my POX controller to make all the decisions about flow > scheduling, so all the statistical information from sFlow needs to be > passed to POX. Is it possible to do so? > > > > Thanks in advance, > > > > Best regards, > > Fahimeh > >
