Ethernet CFM can be enabled on each individual path under an Ethernet ring. Only Down MEPs can be configured on each of them and CCM sessions can be enabled to monitor the liveliness of the path using an interval of 100 ms. Different CCM intervals can be supported on path A and path B in an Ethernet ring. CFM is optional if hardware supports LOS, for example.
Service Down MEPs cannot be configured on the same port as the G.8032 ring ports.