This attribute initiates or terminates remote loopback with
an OAM peer. Writing startRemoteLoopback(2) to this attribute
cause the local OAM client to send a loopback OAMPDU to the
OAM peer with the loopback enable flags set. Writing
stopRemoteLoopback(3) to this attribute will cause the local
OAM client to send a loopback OAMPDU to the OAM peer with the
loopback enable flags cleared. Writing noLoopback to this
attribute has no effect.
Writes to this attribute are ignored unless the OAM status of
this interface is 'operational' (h3cDot3OamOperStatus).
The attribute always returns noLoopback on a read. To
determine the loopback status, use the attribute
h3cDot3OamLoopbackStatus.