组网需求
如图所示，现网环境中，交换机作为网络接入层设备。设备下接的IP电话放置在室外，AP位于办公室外墙上，位置偏僻，都不方便接入电源，用户希望通过交换机设备直接供电，以节约设备部署成本。
为实现灵活管理接入的PD设备，设备供电管理模式为自动模式。AP1为某银行的办公网络，设备不能断电，需要最高的供电优先级。同时IP Phone1业务量比较大，希望得到较高供电保证，非特殊情况不能掉电。AP2需要在每天的固定时间段内断电。
PoE应用组网图
配置思路
要求采用支持PoE功能的交换机设备，并插有PoE电源。
采用如下的思路配置基本PoE功能：
配置设备的供电管理模式为自动模式，以便实现灵活管理接入的PD设备。
配置1号单板的最大对外输出功率，保证此单板处于较为稳定的PoE供电状态。
配置GigabitEthernet1/0/2和GigabitEthernet1/0/1接口的供电优先级，优先保证AP1和IP Phone1的供电。
已知IP Phone和AP1的使用功率，配置GigabitEthernet1/0/1、GigabitEthernet2/0/1和GigabitEthernet1/0/2接口的最大对外输出功率，以限制对应接口的功率，保护设备安全。
配置GigabitEthernet2/0/2下的PD设备在某个时间段内下电。
操作步骤
配置设备的供电管理模式为自动模式。
system-view[HUAWEI] sysname Switch[Switch] poe power-management auto slot 1[Switch] poe power-management auto slot 2 配置1号单板的最大对外输出功率为200W。
[Switch] poe max-power 200000 slot 1Warning: This operation may power off some PD. Continue?[Y/N]:y
分别配置GigabitEthernet1/0/1、GigabitEthernet2/0/1和GigabitEthernet1/0/2接口的最大对外输出功率为15W、15W、20W。设备上功率的设置都以毫瓦（mW）为单位。
[Switch] interface gigabitethernet 1/0/1[Switch-GigabitEthernet1/0/1] poe power 15000Warning: This operation may power off some PD. Continue?[Y/N]:y[Switch-GigabitEthernet1/0/1] quit[Switch] interface gigabitethernet 2/0/1[Switch-GigabitEthernet2/0/1] poe power 15000Warning: This operation may power off some PD. Continue?[Y/N]:y[Switch-GigabitEthernet2/0/1] quit[Switch] interface gigabitethernet 1/0/2[Switch-GigabitEthernet1/0/2] poe power 20000Warning: This operation may power off some PD. Continue?[Y/N]:y[Switch-GigabitEthernet1/0/2] quit
配置GigabitEthernet1/0/2接口的供电优先级为Critical。
[Switch] interface gigabitethernet 1/0/2[Switch-GigabitEthernet1/0/2] poe priority criticalWarning: This operation may power off some PD with lower priority. Continue?[Y/N]:y[Switch-GigabitEthernet1/0/2] quit
配置GigabitEthernet1/0/1接口的供电优先级为High。
[Switch] interface gigabitethernet 1/0/1[Switch-GigabitEthernet1/0/1] poe priority highWarning: This operation may power off some PD with lower priority. Continue?[Y/N]:y[Switch-GigabitEthernet1/0/1] quit
配置GigabitEthernet2/0/2接口下的设备在每天的10:00到11:00下电。
[Switch] time-range tset 10:00 to 11:00 daily[Switch] interface gigabitethernet 2/0/2[Switch-GigabitEthernet2/0/2] poe power-off time-range tsetWarning: This operation will power off the PD during this time range poe. Continue?[Y/N]:y
[Switch-GigabitEthernet2/0/2] quit验证配置结果。
# 查看槽位1的接口的PoE供电状态。
[Switch] display poe power-state slot 1PORTNAME POWERON/OFF ENABLED PRIORITY STATUS
--------------------------------------------------------------------------------GigabitEthernet1/0/0 off enable Low DetectingGigabitEthernet1/0/1 on enable High Delivering-powerGigabitEthernet1/0/2 on enable Critical Delivering-powerGigabitEthernet1/0/3 off enable Low DetectingGigabitEthernet1/0/4 off enable Low DetectingGigabitEthernet1/0/5 off enable Low DetectingGigabitEthernet1/0/6 off enable Low DetectingGigabitEthernet1/0/7 off enable Low DetectingGigabitEthernet1/0/8 off enable Low DetectingGigabitEthernet1/0/9 off enable Low DetectingGigabitEthernet1/0/10 off enable Low DetectingGigabitEthernet1/0/11 off enable Low DetectingGigabitEthernet1/0/12 off enable Low DetectingGigabitEthernet1/0/13 off enable Low DetectingGigabitEthernet1/0/14 off enable Low DetectingGigabitEthernet1/0/15 off enable Low DetectingGigabitEthernet1/0/16 off enable Low DetectingGigabitEthernet1/0/17 off enable Low DetectingGigabitEthernet1/0/18 off enable Low DetectingGigabitEthernet1/0/19 off enable Low DetectingGigabitEthernet1/0/20 off enable Low DetectingGigabitEthernet1/0/21 off enable Low DetectingGigabitEthernet1/0/22 off enable Low DetectingGigabitEthernet1/0/23 off enable Low Detecting# 查看槽位2的接口的PoE供电状态。
[Switch] display poe power-state slot 2PORTNAME POWERON/OFF ENABLED PRIORITY STATUS
--------------------------------------------------------------------------------GigabitEthernet2/0/0 off enable Low DetectingGigabitEthernet2/0/1 on enable Low Delivering-powerGigabitEthernet2/0/2 on enable Low Delivering-powerGigabitEthernet2/0/3 off enable Low DetectingGigabitEthernet2/0/4 off enable Low DetectingGigabitEthernet2/0/5 off enable Low DetectingGigabitEthernet2/0/6 off enable Low DetectingGigabitEthernet2/0/7 off enable Low DetectingGigabitEthernet2/0/8 off enable Low DetectingGigabitEthernet2/0/9 off enable Low DetectingGigabitEthernet2/0/10 off enable Low DetectingGigabitEthernet2/0/11 off enable Low DetectingGigabitEthernet2/0/12 off enable Low DetectingGigabitEthernet2/0/13 off enable Low DetectingGigabitEthernet2/0/14 off enable Low DetectingGigabitEthernet2/0/15 off enable Low DetectingGigabitEthernet2/0/16 off enable Low DetectingGigabitEthernet2/0/17 off enable Low DetectingGigabitEthernet2/0/18 off enable Low DetectingGigabitEthernet2/0/19 off enable Low DetectingGigabitEthernet2/0/20 off enable Low DetectingGigabitEthernet2/0/21 off enable Low DetectingGigabitEthernet2/0/22 off enable Low DetectingGigabitEthernet2/0/23 off enable Low Detecting
配置文件
#
sysname Switch
#
poe max-power 200000 slot 1
time-range tset 10:00 to 11:00 daily
#
interface GigabitEthernet1/0/1
poe priority high
poe power 15000
#
interface GigabitEthernet1/0/2
poe priority critical
poe power 20000
#
interface GigabitEthernet2/0/1
poe power 15000
#
interface GigabitEthernet2/0/2
poe power-off time-range tset
#
return
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