Loopback-Detection Global Action - HP 6125XLG Command Reference Manual

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
Ethernet interface view, aggregate interface view
Predefined user roles
network-admin
Parameters
vlan-list: Specifies a VLAN list, in the format of { vlan-id [ to vlan-id ] }&<1- 1 0>, where vlan-id represents
the VLAN ID in the range of 1 to 4094, and &<1- 1 0> indicates that you can specify up to 10 vlan-id [ to
vlan-id ] parameters.
all: Specifies all existing VLANs.
Usage guidelines
Use this command to enable loop detection on specific ports. The port-specific configuration takes effect
only after you enable loop detection globally. To enable loop detection globally, use the
loopback-detection global enable command.
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. The per-port configuration takes
precedence over the global configuration.
Example
# Enable loop detection on port Ten-GigabitEthernet 1/1/5 for VLAN 10 through VLAN 20.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 1/1/5
[System-Ten-GigabitEthernet1/1/5] loopback-detection enable vlan 10 to 20
Related commands
display loopback-detection
•
• loopback-detection global enable

loopback-detection global action

Use loopback-detection global action to configure the global loop protection action.
Use undo loopback-detection global action to restore the default.
Syntax
loopback-detection global action shutdown
undo loopback-detection global action
Default
When the device detects a loop on a port, it generates a log but performs no action on the port.
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