The EVS manager is the entity that communicates with the EVS controller to define the L2 network topologies and the IP addresses that must be used on these L2 networks. The EVS manager communicates with the EVS controller by using the evsadm command. The EVS manager and the EVS controller can also be on the same compute node.
You can perform EVS operations on the EVS manager after you install the service/network/evs package and specify the EVS controller by using the controller property with the evsadm set-prop command. The controller property is specified in the ssh://[user@]example-controller.com format. For more information, see Chapter 6, Administering Elastic Virtual Switches.