Description: The current state of Continuity Check for this VCC. In the ready state, no CC is being performed. The ready state indicates CC is permitted to be activated. The activating state indicates CC has been requested and is being activated. During activation, an OAM activation cell is sent to the opposite endpoint to request CC. Once an activation confirmed cell is received, the state is then changed to active. Reception of an activation denied response or a multiple of 3 ten-second time outs waiting for a confirmation will result in an activationFailed state. CC sourcing is performed when state is active or activating. CC sinking is performed when state is active.