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 <[email protected]>:
> 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
>
