Hello folks,
I am new to ryu and ofsoftswicth13 and i am tryng to limit the traffc of
flows matched from table miss and it does not seens to work correctly.
I would also like suggestions and help!!! I am also not sure where the
problem is!
Here is my scenario:
Mininet command:
# mn --topo single,3 --mac --switch user --controller remote
Ryu comand:
ryu-manager --verbose sw13_meter.py
Whre sw13_meter is simple_sw13 from ryu with a few changes! Basicly i
create a meter and add to the table miss.. here is teh code that sets the
table miss:
> datapath = ev.msg.datapath
> ofproto = datapath.ofproto
> parser = datapath.ofproto_parser
>
> # install table-miss flow entry
> match = parser.OFPMatch()
> actions = [parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,
> ofproto.OFPCML_NO_BUFFER)]
> rate=100
> burst_size=0
> bands=[]
> bands.append(parser.OFPMeterBandDrop(rate, burst_size))
> meter_mod =
> parser.OFPMeterMod(datapath,command=ofproto.OFPMC_ADD,flags=ofproto.OFPMF_KBPS
> ,meter_id=1, bands=bands)
> datapath.send_msg(meter_mod)
>
> # Add the meter to the table miss
> inst = [parser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
> actions),parser.OFPInstructionMeter(1)]
>
> mod = parser.OFPFlowMod(datapath=datapath, priority=0,
> match=match, instructions=inst)
> datapath.send_msg(mod)
So the flow and meter are set but it does not seen to limit anything.
I generated "pings" to random host and each packet get to the controler as
a packet_in event, but at no rate limit.
The meter is working for others rules.
When i add every flow to that meter ( i add the meter to the function flow
add in the simple switch)
Iperf shows 100k of speed.
Does anyone have the same problem? or have anyidea how to test it other way?
I had a litle trouble figuring out the speed, but i end up usend iftop in
lo (where the controler listen) if anyone have other suggestion how to do
this i would be glad!
Thanks to all!
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