S5700 PoE接某友商AP不供电

SE_Gao

2025-8-5

交换机

问题描述

某客户采用S5700给某友商AP供电，发现插上网线没有反应，但是之前采用POE适配器是可以给AP供电的，后来POE适配器接口不够，才换成S5700交换机。

告警信息

无

处理过程

1、检查是否支持POE供电，客户反馈设备型号是S5700S-28P-PWR-LI-AC，确认支持POE供电

2、进入接口查看信息，无法判断PD状态：

[HUAWEI-diagnose]interface gigabitethernet0/0/1
[HUAWEI-GigabitEthernet0/0/1]poe legacy enable
[HUAWEI-GigabitEthernet0/0/1]display this
#
interface GigabitEthernet0/0/1
poe legacy enable
#
return
[HUAWEI-GigabitEthernet0/0/1]q
[HUAWEI]lldp enable
Info: Global LLDP is enabled successfully.
[HUAWEI]
Dec 5 2017 09:17:31 HUAWEI LLDP/4/ADDCHGTRAP:OID 1.3.6.1.4.1.2011.5.25.134.2.5 Local management address is changed. (LocManAddr=48d5-391a-e6c0)
[HUAWEI]
Dec 5 2017 09:17:31 HUAWEI LLDP/4/ENABLETRAP:OID 1.3.6.1.4.1.2011.5.25.134.2.1 Global LLDP is enabled.
[HUAWEI]
Dec 5 2017 09:17:39 HUAWEI DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25.191.3.1 configurations have been changed. The current change number is 4, the change loop count is 0, and the maximum number of records is 4095.
[HUAWEI]
Dec 5 2017 09:17:53 HUAWEI LLDP/4/NBRCHGTRAP:OID 1.0.8802.1.1.2.0.0.1 Neighbor information is changed. (LldpStatsRemTablesInserts=1, LldpStatsRemTablesDeletes=0, LldpStatsRemTablesDrops=0, LldpStatsRemTablesAgeouts=0)lldp enable
[HUAWEI-GigabitEthernet0/0/1]lldp dot3-tlv power 802.3at
[HUAWEI-GigabitEthernet0/0/1]d
Dec 5 2017 09:22:29 HUAWEI DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25.191.3.1 configurations have been changed. The current change number is 5, the change loop count is 0, and the maximum number of records is 4095.
[HUAWEI-GigabitEthernet0/0/1]display this
#
interface GigabitEthernet0/0/1
poe legacy enable
lldp dot3-tlv power 802.3at