To implement dual-device L2TP service hot backup, an RBS must be enabled on the devices that back up each other in the RBP view.
The system view is displayed.
The RBP view is displayed.
An L2TP RBS is enabled.
If information about an L2TP tunnel, an L2TP session, or a PPPoE session has been backed up, the undo service-type l2tp command cannot be run.
The configuration is committed.