Loop Detection Commands; Display Loopback-Detection; Loopback-Detection Action - HP 12500 Series Command Reference Manual

Loop detection commands

display loopback-detection

Use display loopback-detection to display the loop detection configuration and status.
Syntax
display loopback-detection
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Example
# Display the loop detection configuration and status.
<Sysname> display loopback-detection
Loopback detection is enabled.
Loopback detection interval is 30 second(s).
Loopback is detected on following interfaces:
Interface
GigabitEthernet3/0/2
GigabitEthernet3/0/3
Table 21 Command output
Field
Action mode

loopback-detection action

Use loopback-detection action to configure the loop protection action on a port.
Use undo loopback-detection action to restore the default.
Syntax
loopback-detection action shutdown
Action mode
Shutdown
None
Description
Loop protection action:
•
None—When a loop is detected on a port, the device generates a log but
performs no action on the port.
•
Shutdown—When a loop is detected on a port, the device generates a log
and shuts down the port to disable it from receiving and sending any
frames.
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