This variable represents the loopback state of
the CSU. Devices supporting read/write access
should return badValue in response to a requested
loopback state that the CSU does not support. The
values mean:
ds3NoLoop
Not in the loopback state. A device that is
not capable of performing a loopback on
either interface shall always return this as
it's value.
ds3LocalLoopbackLocalSide
Signal received from the local side of the
device is looped back at the local connector
(eg, without involving the CSU).
ds3LocalLoopbackRemoteSide
Signal received from the local side of the
device is looped back at the remote connector
(eg, through the CSU).
ds3RemoteLoopbackLocalSide
Signal received from the remote side of the
device is looped back at the local connector
(eg, through the CSU).
ds3RemoteLoopbackRemoteSide
Signal received from the remote side of the
device is looped back at the remote connector
(eg, without involving the CSU).
Note that M23 and ClearChannel interfaces do not
support the Loopback managed object.