[pox-dev] sFlow and POX

[James Kerr]

I have done this, and have source code available if you'd like.
On 27 Apr 2015 20:55, "Murphy McCauley" <murphy.mccauley at 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.ce at 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
>
>
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