When the value is set to 'restart', the Soft PVPC is
released if necessary and a new setup procedure is begun.
As a result of this action, the atmSoftPVpcOperStatus
object transitions to 'establishmentInProgress' (if not
already in this state) and the atmSoftPVpcRetryFailures
object is cleared.
When the value is set to 'noop', no operation is performed.
When read, the value 'noop' is returned.