[pox-dev] working with links

farshad tajedin farshad.tajedin at gmail.com
Sat Apr 5 02:33:07 PDT 2014


tanks for your help Weiyang
it can be useful for me


On Fri, Apr 4, 2014 at 9:07 PM, Weiyang Mo <moweiyang1988 at gmail.com> wrote:

> Hi,
>
> You may send a request to the port s1,s2  for port status  and check the
> total tx,rx bytes. To know the usage, you can compare two different values
> at two different time.
>
> Following is the simple code to retrieve bytes on the port.
>
> def request_PortStats ():
>
> core.openflow.getConnection(yourdpid).send(of.ofp_stats_request(body=of.ofp_port_stats_request())
>
> def _handle_PortStatsReceived(event):
>     for item in event.stats:
>         if  item.port_no == s1:
>             txbytes = item.tx_bytes
>             rxbytes = item.rx_bytes
>         if  item.port_no == s2:
>             //do something
>
> Hope it helps
>
> Weiyang
>
>
> 2014-04-04 2:11 GMT-07:00 farshad tajedin <farshad.tajedin at gmail.com>:
>
> hi all
>> i want to get some information from links that exist in my topology
>> (implemented by mininet ) for example link utilization  for link
>> between s1 and s2 or traffic rate between s1 and s2.
>> can any body help me?
>>
>> --
>> Best Regards
>>
>> Farshad Tajedin
>>
>
>


-- 
Best Regards

Farshad Tajedin
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