Command Manual - Port
Quidway S3500 Series Ethernet Switches Chapter 1 Ethernet Port Configuration Commands
Huawei Technologies Proprietary
1-12
undo loopback-detection control enable
ViewSystem view/Ethernet port view
Parameter
None
Description
Using the command, you can enable loopback detection controlled function on Trunk
and Hybrid port, that is, when the system finds out that ports on a certain VLAN on
Trunk or Hybrid port is looped back, it then makes the Trunk and Hybrid port operate
under control, meantime, deletes the port corresponding MAC address entry. Using the
undo loopback-detection control enable command, you can disable this function,
that is, when the system finds out that port on a certain VLAN on Trunk or Hybrid port is
looped back, it only reports the Trap information. The Trunk or Hybrid port is still
operates in the normal state.
By default, loopback detection controlled function on Trunk or Hybrid port is enabled.
Note that, this command has no effect on Access ports.
Example
# Enable the port loopback detection controlled function.
[Quidway] loopback-detection control enable
1.1.14 loopback-detection enable
Syntax
loopback-detection enable
undo loopback-detection enable
View
System view/Ethernet port view
Parameter
None
Description
Using loopback-detection enable command, you can enable the port loopback
detection. If there is a loopback port found, the switch will put it under control. Using
undo loopback-detection enable command, you can disable the port loopback
detection.
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