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AP-225受电状态检查

AP-225在Datasheet的Power部分标称POE最低需要48V,但实际全功能状态至少需要50V以上。所以当供电/电压不足的情况下,AP的PWR指示灯会显示黄色,但不影响11n用户关联访问。

 

以下节选至AP-220系列的Datasheet

 

Power over Ethernet (PoE): 48 Vdc (nominal) 802.3af or
802.3at-compliant source
- Efficient mode PoE – power save with 802.3af PoE and
limited functionality
> USB port disabled
> Second Ethernet port disabled
> 2.4-GHz 802.11n radio in 1x3:1 spatial-stream mode
> 5-GHz 802.11ac radio operates without restrictions*
- Unrestricted functionality with 802.3at PoE+

 

AP与POE交换机在第一次连通后,会协商POE供需。无任何协商时,通常POE交换机会按802.3af/15.4w供电。设备可以通过硬件协议2-event或软件协议LLDP进行二次协商,在802.3af基础上要求更高的供电需求,可达到802.3at/25.5w。

 

AP当前的受电状态可以通过以下命令查看

 

(Aruba7210) #show ap debug system-status ap-name ap115 | include POE
Operational State POE: 802.3at
Current HW State POE: 802.3at
LLDP Negotiated POE Power (not available)

 

(Aruba7210) #show ap debug system-status ap-name 9c:1c:12:c0:38:c6 | include POE
Operational State POE: No restrictions
Current HW State POE: No restrictions
LLDP Negotiated POE Power 25.0W

 

当AP受电不足,出现PWS黄灯时,AP的console会输出以下提示:

 

[ 253.077004] Shutting down eth1 due to insufficient POE voltage [power profile 2]
[ 253.165756] Shutting down 2 2.4G radio TX/RX chains due to insufficient POE voltage[power profile 2]

 

当供电充足时,黄灯转绿,同时提示:

[  313.237009] Enabling eth1 due to power change [power profile 1]

Aruba Employee

Re: AP-225受电状态检查

所以一定要注意POE+交换机的真正供电是否能满足。

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