R0106-HP MSR Router Series Layer 2 - LAN Switching Command Reference(V7)

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The global configuration applies to all ports in the specified VLAN. The per-port configuration applies to
the individual port only when the port belongs to the specified VLAN. The per-port configuration takes
precedence over the global configuration.
Example
# Globally enable loop detection for VLAN 10 through VLAN 20.
<Sysname> system-view
[System] loopback-detection global enable vlan 10 to 20
Related commands
• display loopback-detection
• loopback-detection enable
loopback-detection interval-time
Use loopback-detection interval-time to set the loop detection interval.
Use undo loopback-detection interval-time to restore the default.
Syntax
loopback-detection interval-time interval
undo loopback-detection interval-time
Default
The loop detection interval is 30 seconds.
Views
System view
Predefined user roles
network-admin
Parameters
interval: Sets the loop detection interval in the range of 1 to 300 seconds.
Usage guidelines
With loop detection enabled, the device sends loop detection frames at the specified interval. A shorter
interval offers more sensitive detection but consumes more resources. Consider the system performance
and loop detection speed when you set the loop detection interval.
Example
# Set the loop detection interval to 10 seconds.
<Sysname> system-view
[Sysname] loopback-detection interval-time 10
Related commands
display loopback-detection