Having installed and configured ONOS with the preceding features, let's put the setup to use by managing Open vSwitch instances using ONOS. Open vSwitch, or OVS as it is popularly called, is a virtual switch that supports OpenFlow protocols:
In Chapter 4, SDN Networking with Open vSwitch, we introduced Mininet as a tool to simulate an Open vSwitch-based network topology. We will continue to use Mininet to discuss how ONOS can manage OVS. The first step is to create a network topology using Mininet:
Let us check the ONOS GUI to verify the preliminary state by pointing the web browser to
http://<ONOS_Controller_IP>:8181/index.html:
Simulate network traffic using a
pingcommand on the Mininet shell:
Check the node, links, and device status using the ONOS CLI command as shown in the following screenshot:
We will use OVS commands to verify if the OpenFlow tables have been programmed or not:
We can also check the status on the ONOS GUI. It shows a summary...