D-Link Dis-200G Series Cli Reference Manual page 130

Default
By default, this function is disabled.
The default IP address of the target PD is none.
The default interval for system to issue ping requests is 30 seconds.
The default retry counts for ping requests is 2 times.
The default waiting time for PD to recover from rebooting is 90 seconds.
The default action when PD does not reply the ping request is both.
Command Mode
Interface Configuration Mode.
Command Default Level
Level: 15.
Usage Guideline
This function only takes effect on PoE enabled ports with power feeding.
The PD alive check function provides the solution for the PD device that stops working or has no response via
the ping mechanism.
Use this command without any optional parameter to enable or disable the PD alive check function.
By default, there is no IP address of the target PD for the system to execute the ping action. The IP address of
the target PD must be configured by using the poe pd alive ip command before executing the PD alive check.
The system needs to periodically monitor the specific PD by using the ping function. When there is no
response, the system takes one of the actions configured by the poe pd alive action command. The interval
between retry attempts can be configured by the poe pd alive interval command.
The system implements the retry mechanism to check the PD status. The system will reset the PoE port power
feeding after the retry by using Ping without any response from a PD. The retry count can be configured by the
poe pd alive retry command.
If the action is reset or both, the system needs to wait for PD to recover from rebooting and then executes the
Ping function again. The waiting time for PD to recover from rebooting can be configured by the poe pd alive
waiting-time command.
If the PoE time range function is configured on the port that also enables the PD alive check function, the time
range function has higher priority, and the PD alive check function will not work When the PoE time range
function is still active.
NOTE: If the PD does not support ICMP, this function cannot work normally.
NOTE: It is required to setup IP settings properly that the PD can be reached via Ping, otherwise
this function cannot work as expected.
NOTE: The reset action can only work on the direct-connected PD. If the PD is not connected
directly, the reset action may not work as expected.
NOTE: If the direct-connected PD is also a PSE, all the next level PDs connect to this PSE will be
power cycling whenever the PD alive check function takes effect on the reset or both action.
DIS-200G Series Gigabit Ethernet Switch CLI Reference Guide
reply the ping request.
reset - Specifies to disable and then enable the PoE port state.
notify - Specifies to send logs and traps to notify the administrator.
both - Specifies to send log and trap first, and then reset the PoE
port state.
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