Loopback-Detection Enable - HP 12500 Series Command Reference Manual

undo loopback-detection action
Default
When the device detects a loop on a port, it generates a log but performs no action on the port.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Predefined user roles
network-admin
mdc-admin
Parameters
shutdown: Enables the shutdown mode. If a loop is detected, the device generates a log and shuts
down the port.
Usage guidelines
You can configure the loop protection action globally or on specific ports. The global configuration
applies to all ports. The per-port configuration applies to the individual ports. The per-port
configuration takes precedence over the global configuration.
Example
# Set the loop protection action to shutdown on port GigabitEthernet 3/0/1.
<Sysname> system-view
[Sysname] interface GigabitEthernet 3/0/1
[System-GigabitEthernet3/0/1] loopback-detection action shutdown
Related commands
display loopback-detection
•
loopback-detection global action
•

loopback-detection enable

Use loopback-detection enable to enable loop detection on a port.
Use undo loopback-detection enable to disable loop detection on a port.
Syntax
loopback-detection enable vlan { vlan-list | all }
undo loopback-detection enable vlan { vlan-list | all }
Default
The loop detection function is disabled on ports.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Predefined user roles
network-admin
mdc-admin
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