D-Link DGS-510 Reference Manual page 473

DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide
Command Default Level
Level: 12.
Usage Guideline
Use this command to enable the support of legacy PDs connected to the port. If legacy support is
disabled, the system will not provide power to the legacy PDs.
Example
This example shows how to enable legacy support for PDs connected to interface eth3/0/1.
Switch# configure terminal
Switch(config)# interface eth3/0/1
Switch(config-if)# poe pd legacy-support
Switch(config-if)#
53-3 poe pd priority
This command is used to configure the priority for provisioning power to the port. Use the no form of
this command to revert to the default setting.
poe pd priority {critical | high | low}
no poe pd priority
Parameters
critical
high
low
Default
By default, this option is set as low.
Command Mode
Interface Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
Since the power budget is limited, as more PDs are added to the system, the power source may not
be sufficient to supply the power. The PoE system enters the power critical section when the
remaining power source is not enough to serve the new added PD. Whether power is supplied to the
new added PD will depend on the policy configured by poe policy preempt command.
If the policy preempt setting is disabled, then the policy is first in first serviced. Thus the new PD will
not be serviced if the power source is running out. If the policy preempt setting is enabled, then the
power provisioned to PD with lower priority can be preempted in order to release power to the new
connected PD with higher priority.
Example
This example shows how to configure the priority of eth 3/0/1 to the first priority.
Specifies the PD connected to the port gains the highest priority.
Specifies the PD connected to the port gains the second high
priority.
Specifies the PD connected to the port gains the lowest priority.
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