Enabling Automatic LBDT
Context
The switch joins VLAN 1 by default, and the PVID of all interfaces is VLAN 1. When an interface changes from Down to Up, a loop may occur. You can configure automatic LBDT to detect loops in the VLAN specified by the PVID on an interface.
Procedure
- Run:
system-viewThe system view is displayed.
- Run:
undo loopback-detect auto disableAutomatic LBDT is enabled on all interfaces.
By default, automatic LBDT is enabled on all interfaces. When a loop is detected in the VLAN specified by the PVID on an interface, a trap is reported.
To disable automatic LBDT, run the loopback-detect auto disable command.
When the loopback-detect enable command is used to configure manual LBDT, automatic LBDT becomes invalid.
When the loopback-detect enable command is used to configure manual LBDT, automatic LBDT on the corresponding interface becomes invalid.
