Loopback-Detection Global Enable - HP 12500 Series Command Reference Manual

Example
# Set the global loop protection action to shutdown.
<Sysname> system-view
[System] loopback-detection global action shutdown
Related commands
display loopback-detection
•
loopback-detection action
•

loopback-detection global enable

Use loopback-detection global enable to enable loop detection globally.
Use undo loopback-detection global enable to disable loop detection globally.
Syntax
loopback-detection global enable vlan { vlan-list | all }
undo loopback-detection global enable vlan { vlan-list | all }
Default
The loop detection function is globally disabled.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
vlan-list: Specifies a VLAN list, in the format of { vlan-id [ to vlan-id ] }&<1-10>, where vlan-id
represents the VLAN ID in the range of 1 to 4094, and &<1-10> indicates that you can specify up
to 10 vlan-id [ to vlan-id ] parameters.
all: Specifies all existing VLANs.
Usage guidelines
You can enable loop detection globally or on specific ports. The global configuration applies to all
ports in the specified VLAN. The per-port configuration applies to the individual port only when the
port belongs to the specified VLAN.
Example
# Globally enable loop detection for VLAN 10 through VLAN 20.
<Sysname> system-view
[System] loopback-detection global enable vlan 10 to 20
Related commands
display loopback-detection
•
loopback-detection enable
•
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