PLANET WGSW-50040 - Manual (Page 108)

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
4.4 loopback-detection control-recovery timeout
Command:
loopback-detection control-recovery timeout <0-3600>
Function:
This command is used to recovery to uncontrolled state after a special time when a loopback being
detected by the port entry be controlled state.
Parameters:
<0-3600> second is recovery time for be controlled state, 0 is not recovery state.
Default:
The recovery is not automatic by default.
Command Mode:
Global Configuration Mode.
Usage Guide:
When a port detects a loopback and works in control mode, the ports always work in control mode
and not recover. The port will not sent packet to detection in shutdown mode, however, the port will
sent loopback-detection packet to detection whether have loopback in block or learning mode. If the
recovery time is configured, the ports will recovery normal state when the overtime is time-out. The
recovery time is a useful time for shutdown control mode, because the port can keep on detection
loopback in the other modes, so suggest not to use this command.
Examples: