This read-write flag, defaulting to disable, enables or disables a remote loopback on a specific channel, where enabling it causes all cells arriving from the network side to be looped back out toward the network while frames arriving from the user (CPE) side are simply dropped. Admins use this as a diagnostic tool to test connectivity or signal integrity toward the network core on a per-channel basis, explicitly noting it's a distinct mechanism from the chanTestType continuity/delay tests. For example, an admin isolating a suspected network-side problem on a specific PVC would enable ausmChanLocRmtLpbkState to loop network-side cells back and observe whether they return correctly, without involving the customer's CPE traffic.