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23.4 loopback-detection(interface)
Description
The loopback-detection command is used to enable the loopback detection
function of the specified port. To disable it, please use no
loopback-detection command.
Syntax
loopback-detection
no loopback-detection
Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)
Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
Example
Enable the loopback detection function of ports 1-3:
T1600G-52TS(config)# interface range gigabitEthernet 1/0/1-3
T1600G-52TS(Config-if-range)# loopback-detection
23.5 loopback-detection config
Description
The loopback-detection config command is used to configure the
process-mode and recovery-mode for the ports by which the switch copes
with the detected loops.
Syntax
loopback-detection config [ process-mode { alert | port-based }]
[ recovery-mode { auto | manual }]
Parameter
process-mode —— The mode how the switch processes the detected loops.
Alert: When a loop is detected, display an alert.
Port based: When a loop is detected, display an alert and block the port.
recovery-mode —— The mode how the blocked port recovers to normal
status. Auto: Block status can be automatically removed after recovery time.
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