hwDs1Loopback 1.3.6.1.4.1.2011.5.25.157.1.5.1.1.18

Enable the loopback function of the interface. local: enables the local loopback on the interface. remote: enables the remote loopback on the interface. payload: enables the remote payload loopback on the interface. cell: enables the local cell loopback. The local cell loopback is used to test the local physical chip.