I tried to create a simple mininet topology using
*sudo mn --topo single,2 --mac --switch user,protocols=OpenFlow13
--controller remote,ip=192.168.56.101*
//Here Controller in consideration is Ryu Controller.
My main aim is to capture the messages exchanged between switch and
controller using wireshark.
At the controller side, I have started
*./bin/ryu-manager ryu/app/simple_switch_12.py*
Now the topology is created and the switch is connected to the controller.
Now When I try to do
h1 ping h2
It states Destination Host unreachable which is fine because there is not
rule in the flow table to direct the traffic. However, I wanted to capture
the ARP Request forwarded by the switch to the controller. In response of
which the flow table was populated by the controller. But here, if I input
the flow table entries using dpctl like this, I am not able to capture the
ARP request message.
*$ sudo dpctl unix:/tmp/s1 flow-mod table=0,cmd=add in_port=1
apply:output=2*
*$ sudo dpctl unix:/tmp/s1 flow-mod table=0,cmd=add in_port=2
apply:output=1*
Can you please help me know, what am I doing wrong in this?
Also at the controller side, when using verbose I got the following error
about the version mismatch of openflow.
[image: Inline image 1]
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