PLANET XGS3-24040 - Manual (Page 91)

Chapter 9 Port Loopback Dection Function Configuration
9-5
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.
9.3 Port Loopback Detection Function Example
Figure 9-1 A 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 of the whole network.
The configuration task sequence of SWITCH:
Switch(config)#loopback-detection interval-time 35 15
Switch(config)#interface ethernet 1/1
Switch(Config-If-Ethernet1/1)#loopback-detection special-vlan 1-3
Switch(Config-If-Ethernet1/1)#loopback-detection control block
Network Topology
SWITCH