326
Command Reference for IE200 Series Industrial Managed PoE+ Switches
C613-50066-01 REV A
AlliedWare Plus™ Operating System - Version 5.4.5I-0.x
S
WITCHING
C
OMMANDS
LOOP
-
PROTECTION
ACTION
loop-protection action
Overview
Use this command to specify the protective action to apply when a network loop
is detected on an interface.
Use the
no
variant of this command to reset the loop protection actions to the
default action, vlan-disable, on an interface.
NOTE
:
Currently the learn-disable parameter is not supported. If specified, an error
message will be displayed.
Syntax
loop-protection
action {link-down|log-only|port-disable|vlan-disable|none}
no loop-protection action
Default
loop-protection action vlan-disable
Mode
Interface Configuration
Usage
See the “Loop Protection” section in the
Switching Feature Overview and
Configuration Guide
for relevant conceptual, configuration, and overview
information prior to applying this command.
Example
To disable an interface (
port1.0.4
), and bring the link down, when a network
loop is detected, use the commands:
awplus#
configure terminal
awplus(config)#
interface port1.0.4
awplus(config-if)#
loop-protection action link-down
Parameter
Description
link-down
Block all traffic on a port (or aggregated link) that detected the
loop, and take
down
the link.
log-only
Details of loop conditions are logged. No action is applied to the
port (or aggregated link).
port-disable
Block all traffic on interface for which the loop occurred, but keep
the link in the
up
state.
vlan-disable
Block all traffic for the VLAN on which the loop traffic was
detected. Note that setting this parameter will also enable ingress
filtering. This is the default action.
none
Applies no protective action.
