Loopback-Detection Enable; Loopback-Detection Enable Vlan - 3Com 8807 Command Reference Manual

Ethernet Port
Detection
Configuration
Commands
loopback-detection
enable
loopback-detection
enable vlan
64
P L
ORT OOPBACK
C
OMMANDS
Syntax

loopback-detection enable

undo loopback-detection enable
View
System view
Parameter
None
Description
Use the loopback-detection enable command to enable the global port
loopback detection function, so that the system can detecte whether there is an
external loop on each port in a VLAN which is enabled with the loopback
detection function.If a loop is found on a port, the switch will give out an alarm or
give out an alarm and shutdown the port according to your configuration.
Use the undo loopback-detection enable command to disable the global port
loopback function.
By default, the global port loopback detection function is disabled.
Related command: display loopback-detection.
Example
# Enable the global port loopback detection function.
<SW8800> system-view
[SW8800] loopback-detection enable
Syntax
loopback-detection enable vlan { vlanlist | all }
Ethernet Port Detection Configuration Commands
D
ETECTION
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