XGS-5240-Series User Manual

Table Of Contents
Configuration Guide of XGS-5240-Series
107
debug loopback-detection
no debug loopback-detection
Enable the debug information of the
function module of port loopback detection.
The no operation of this command will
disable the debug information.
show loopback-detection [interface
<interface-list>]
Display the state and result of the loopback
detection of all ports, if no parameter is
provided; otherwise, display the state and
result of the corresponding ports.
5. Configure the loopback-detection control mode (automatic recovery enabled or not)
Command
Explanation
Global Mode
loopback-detection control-recovery
timeout <0-3600>
Configure the loopback-
detection control
mode (automatic recovery enabled or not)
or recovery time.
11.3 Port Loopback Detection Function Example
Fig 3-1 Typical example of port loopback detection
As shown in the above configuration, the switch will detect the existence of loopbacks in
the network topology. After enabling the function of loopback detection on the port connecting
the switch with the outside network, the switch will notify the connected network about the
existence of a loopback, and control the port on the switch to guarantee the normal operation
Network Topology
SWITCH