Hi Alan,
Sorry, I don't have NS3 simulator environment though.
First, please confirm:
1. if simple_monitor_13 sent OFPFlowStatsRequest after packet_in_handler,
and Ns3-ofsoftswtich13 received them
2. if Ns3-ofsoftswtich13 sent OFPFlowStatsReply every second, and
simple_monitor_13 received them
You can use tcpdump or wireshark to confirm the above.
If 1. is NG, there might be problem in simple_monitor_13, but if 1. is OK
and 2. is NG, it might be problem of Ns3-ofsoftswtich13 side.
Thanks,
Iwase
On 2017年03月03日 12:38, Alan Wang wrote:
> Hi ,
>
> Thanks for your reply.
>
> I am wrong.
>
> I want to use simple_monitor13 and Ns3 to simulate.
>
> However I send OFPFlowStatsRequest to Ns3-ofsoftswtich13 every second,
>
> but Ns3-ofsoftswtich13 can't receive OFPFlowStatsReply every second,
> especially
>
> After packet_in_handler. Controller can't get the flow stats when
> Ns3-ofsoftswtich13 doesn't receive the flow_request and sent to reply .
>
> Thanks
>
> Alan
>
>
>
>
> 2017年3月3日 09:59，"Iwase Yusuke" <[email protected]
> <mailto:[email protected]>>寫道：
>
> Hi,
>
> On 2017年02月25日 21:06, Alan Wang wrote:
> > HI All,
> >
> > I tried to combined the simple_switch_13 and simple_monitor.
>
> "ryu/app/simple_monitor_13.py" inherits ryu/app/simple_switch_13.py:
> https://github.com/osrg/ryu/blob/master/ryu/app/simple_monitor_13.py#L25
> simple_monitor_13.py
> <https://github.com/osrg/ryu/blob/master/ryu/app/simple_monitor_13.py#L25simple_monitor_13.py>
> should do L2 switching like simple_switch_13.py.
>
> Why you need to combine them?
>
> Thanks,
> Iwase
>
> >
> > However,when i run my codes, I found a problem.
> >
> > I send OFPFlowStatsRequest to swtich every second,
> >
> > but i can't receive OFPFlowStatsReply every second, especially
> >
> > After packet_in_handler.I can't get the flow stats when i can't receive
> the flow_reply.
> >
> > Why?
> >
> > Can anyone help me how to solve it?
> >
> > Thanks,
> >
> > Alan
> >
> >
> >
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