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30
View
System view
Default level
2: System level
Parameters
time
: Sets the loopback detection interval, ranging from 5 to 300 seconds.
Description
Use the
loopback-detection interval-time
command to set the loopback detection interval.
Use the
undo loopback-detection interval-time
command to restore the default loopback detection
interval.
By default, the loopback detection interval is 30 seconds.
Related commands:
display loopback-detection
.
Examples
# Set the loopback detection interval to 10 seconds.
<Sysname> system-view
[Sysname] loopback-detection interval-time 10
loopback-detection multi-port-mode enable
Syntax
loopback-detection multi-port-mode enable
undo loopback-detection multi-port-mode enable
View
System view
Default level
2: System level
Parameters
None
Description
Use the
loopback-detection multi-port-mode enable
command to enable multi-port loopback detection
mode.
Use the
undo loopback-detection multi-port-mode enable
command to restore the default.
By default, multi-port loopback detection mode is disabled.
When detecting a loop between two interfaces, the system takes the following actions on the looped
interface:
•
If the looped interface is an access interface: perform the configured protective action, send traps
to the terminals, and delete all MAC address entries of the interface.
•
If the looped interface is a trunk or hybrid interface: send traps to the terminals. If loopback
detection control is enabled, perform the configured protection action on the looped interface, and
delete all MAC address entries of the interface.