4 loopback-detection interval-time, 5 loopback-detection specified-vlan, Loopback – PLANET XGS3-24042 User Manual

Page 146: Detection interval, Time, Detection specified, Vlan

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XGS3 Command Guide

6-146

Switch(config)# loopback-detection control-recovery timeout 30

6.4 loopback-detection interval-time

Command:

loopback-detection interval-time <loopback> <no-loopback>

no loopback-detection interval-time

Function:

Set the loopback detection interval. The no operate closes the loopback detection interval function.

Parameters:

<loopback > the detection interval if any loopback is found, ranging from 5 to 300, in seconds.

<no-loopback > the detection interval if no loopback is found, ranging from 1 to 30, in seconds.

Default:

The default value is 5s with loopbacks existing and 3s otherwise.

Command Mode:

Global Mode.

Usage Guide:

When there is no loopback detection, the detection interval can be relatively shorter, for too short a time would be a

disaster for the whole network if there is any loopback. So, a relatively longer interval is recommended when

loopbacks exist.

Example:

Set the loopback diction interval as 35, 15.

Switch(config)#loopback-detection interval-time 35 15

6.5 loopback-detection specified-vlan

Command:

loopback-detection specified-vlan <vlan-list>

no loopback-detection specified-vlan [<vlan-list>]

Function:

Enable the function of loopback detection on the port and specify the VLAN to be checked; the no operation of this

command will disable the function of detecting loopbacks through this port or the specified VLAN.

Parameters:

<vlan-list> the list of VLANs allowed passing through the port. Given the situation of a trunk port, the specified

VLANs can be checked. So this command is used to set the vlan list to be checked.

Default:

Disable the function of detecting the loopbacks through the port.

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