D-Link DGS-3630 Emulator 1 - Page 1185
poe policy preempt
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DGS-3630 Layer 3 Stackable Managed Switch CLI Reference Guide 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, 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, 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 port 3 to the first priority. Switch#configure terminal Switch(config)#interface eth1/0/3 Switch(config-if)#poe pd priority critical Switch(config-if)# 90-4 poe policy preempt This command is used to enable disconnection of PD which is power-provisioned with lower priority in order to release the power to the new connected PD with higher priority under power shortage conditions. Use the no form of this command to revert to the default setting. poe unit UNIT-ID policy preempt no poe unit UNIT-ID policy preempt Parameters unit UNIT-ID Specifies the stacking unit's ID to be configured. This parameter is only available, if stacking is enabled. Default By default, this option is disabled. Command Mode Global 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 budget is not enough to serve the new added PD. The poe policy preempt command configures whether to disconnect the PD which is powered with lower priority in order to release the power to the new connected PD with higher priority under power shortage condition. If the policy preempt setting is disabled, the policy is first in first serviced. Thus, the new PD will not be serviced if the power budget is running out. If the policy preempt setting is enabled, the power provisioned to PD with lower priority can be preempted to release the power to the new connected PD with higher priority. 1180
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