[pox-dev] Getting flow statistics from a switch on controller

[Sadia Bashir]

Thank you so much for your guide Murphy. Yeah the  "Example - Web Flow
Statistics" helped me to count flows but port statistics is still not
getting cleared up. I want to get count values for rx_packets, rx_dropped,
rx_errors etc individually from a specific port based on packet type such
as tcp, udp, ip, arp, icmp, source/destination IP/MAC addresses etc.

I looked into flow_stats.py example here
https://github.com/hip2b2/poxstuff/blob/master/flow_stats.py and checked
out some previous posts regarding getting port statistics but couldn't get
what I am looking for .
Please tell me if there is a way possible to get port statistics based on a
certain condition as I described above.

Thank you for any hints/help.

Kind Regards;





On Fri, Nov 29, 2013 at 9:47 AM, Murphy McCauley
<murphy.mccauley at gmail.com>wrote:

> A good starting point might be "Example - Web Flow Statistics" in the POX
> manual.
>
> As far as uniquely identifying a flow, the original idea was to use the
> match itself (since it certainly should identify the flow).  There's also a
> flow "cookie".  In OpenFlow 1.0, this was only useful in very limited
> contexts, but has become more useful with Nicira extensions and higher
> versions of OpenFlow.
>
> -- Murphy
>
> On Nov 27, 2013, at 6:59 PM, Sadia Bashir <11msccssbashir at seecs.edu.pk>
> wrote:
>
> > Hi everyone,
> >
> > I want controller to get flow statistics from a switch such as the
> count-value associated with each flow installed on a switch, how do I
> uniquely identify a flow and then retrieve associated statistics.
> >
> > I am using Dart branch for POX-Controller, which files should I look
> into in order to get an idea in this regard.
> >
> > Thank you for your help.
> > --
> > Sadia
>



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