Loopback-Detection Control Enable - H3C s3600 series Command Manual

By default, no loopback test is performed on the Ethernet port.
Examples
# Perform an internal loop test on Ethernet 1/0/1.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface ethernet 1/0/1
[Sysname-Ethernet1/0/1] loopback internal
Loopback internal succeeded.

loopback-detection control enable

Syntax
loopback-detection control enable
undo loopback-detection control enable
View
Ethernet port view
Parameters
None
Description
Use the loopback-detection control enable command to enable the loopback detection control
feature on the current trunk or hybrid port.
Use the undo loopback-detection control enable command to disable the loopback detection control
feature on the trunk or hybrid port.
This function needs to be used in conjunction with the loopback detection function. For details, refer to
the loopback-detection enable
hybrid port, you can use this function to control the working status of the port.
If this feature is enabled on a trunk or hybrid port, when loopback is found on the port, the system
puts the port into the controlled working status and removes the MAC address entries
corresponding to the port.
If this feature is disabled on a trunk or hybrid port, when loopback is found on the port, the system
just reports a Trap message, and the port still works normally.
By default, the loopback detection control feature is disabled on the trunk or hybrid port.
Note that this command is invalid for an access port.
Related commands: loopback-detection enable.
Examples
# Enable the loopback detection control feature on Ethernet 1/0/1.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface ethernet 1/0/1
[Sysname-Ethernet1/0/1] port link-type trunk
command. When a loopback is detected in a VLAN on a trunk or
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