For our demonstration, we shall be using the same topology utilized in the previous Net Apps, which have three hosts, one switch, and one controller.

Open a new terminal tab and run the following:

$ sudo mn --topo single,3 --mac --switch ovsk --controller remote –x

This will create a linear topology and open an xterm to all the devices, as shown in the following screenshot:

The status of the switch can be seen using the ovs-vsctl show command, where the OpenFlow version is provided.

Next, we set the OpenFlow version to version 1.3 using ovs-vsctl set Bridge s1 protocols=OpenFlow13.

Next, we execute the Ryu Controller on the xterm of the controller (C0) based on the switching hub using the following command:

ryu-manager --verbose ryu.app.example_switch_13

The following is the screenshot for this:

Now we have to confirm that the table-miss flow entry has been added to the switch 1 (s1)