Hello
Run the configuration as follows:
1. Enable or disable port loopback detection:
loopback-detection enable (disable) {[interface-list]/slot}
2. Set the loopback detection period:
loopback-detection interval times <60~600>
3. Set the action taken when loopback is performed on a port:
loopback-detection action action-names loopback-detection function enable (the actions include trap: Only report alarms; discard: Directly discard packets; trap-discard: combination of the two;
4. Query the detailed statistics about the loopback port detection:
show loopback-detection information {[interface-list]/slot}
5. Query the loopback settings and status of all ports:
show loopback-detection
Best regards!!