ovs-vsctl list-ports

To list all of the ports within a bridge, use the ovs-vsctl list-ports command. The local bridge port is not included in the list.

ovs-vsctl [options] list-ports bridge

options	See the output of ovs-vsctl --help command, also reproduced here.
bridge	Bridge name.

The following example lists ports within the bridge br0:

admin@Switch$ovs-vsctl list-ports br0