某局点 S5130S-28P-PWR-EI poe供电异常

现场POE设备给一个定位设备供电，接口一直UP DOWN

接摄像头等其他受电设备没有异常

现场反馈之前正常的，机房断过一次电后异常

现场所有5130S-EI供电给这类设备都有问题

找了一个设备 升级了版本测试，开起非标检测，故障依旧，该设备使用的都是长网线

15口到22口接的受电设备

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poe legacy enable pse 4

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找了另一个设备，21口能正常供电

使用的接口是 18，19，20，21，22口

其中21口网线是3米，其他口超过10米，现场表示21口供电是正常的，21口确实没有up down的情况，其他接口都在up down

看接口供电信息没有什么不同

%Jan  1 02:15:28:145 2013 6HaoGuiShiPingWang-4 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/18 changed to up.

%Jan  1 02:15:30:716 2013 6HaoGuiShiPingWang-4 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/20 changed to down.

%Jan  1 02:15:30:717 2013 6HaoGuiShiPingWang-4 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/20 changed to down.

%Jan  1 02:15:31:914 2013 6HaoGuiShiPingWang-4 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/22 changed to down.

%Jan  1 02:15:31:921 2013 6HaoGuiShiPingWang-4 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/22 changed to down.

%Jan  1 02:15:33:274 2013 6HaoGuiShiPingWang-4 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/19 changed to down.

%Jan  1 02:15:33:275 2013 6HaoGuiShiPingWang-4 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/19 changed to down.

%Jan  1 02:15:33:326 2013 6HaoGuiShiPingWang-4 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/20 changed to up.

%Jan  1 02:15:33:332 2013 6HaoGuiShiPingWang-4 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/20 changed to up.

%Jan  1 02:15:34:542 2013 6HaoGuiShiPingWang-4 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/22 changed to up.

%Jan  1 02:15:34:546 2013 6HaoGuiShiPingWang-4 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/22 changed to up.

%Jan  1 02:15:35:204 2013 6HaoGuiShiPingWang-4 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/19 changed to up.

%Jan  1 02:15:35:206 2013 6HaoGuiShiPingWang-4 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/19 changed to up.

21口正常供电，22口异常。

<6HaoGuiShiPingWang-4>dis poe int g 1/0/21

PoE Status                 : Enabled

Power Priority             : Low

Oper                       : On

IEEE Class                 : 0

Detection Status           : Delivering Power

Power Mode                 : Signal

Current Power              : 1300     mW

Average Power              : 1300     mW

Peak Power                 : 1300     mW

Max Power                  : 30000    mW

Electric Current           : 25       mA

Voltage                    : 53.5     V

PD Description             :

 Legacy PD Detection        : Disabled

PoE force power Status     : Disabled

<6HaoGuiShiPingWang-4>dis poe int g 1/0/22

PoE Status                 : Enabled

Power Priority             : Low

Oper                       : On

IEEE Class                 : 0

Detection Status           : Delivering Power

Power Mode                 : Signal

Current Power              : 1300     mW

Average Power              : 1289     mW

Peak Power                 : 1400     mW

Max Power                  : 30000    mW

Electric Current           : 26       mA

Voltage                    : 53.6     V

PD Description             :

 Legacy PD Detection        : Disabled

PoE force power Status     : Disabled

[6HaoGuiShiPingWang-4-probe]debug poe dimm-status 1

POE DIMM status information:

==============================================================================

[Master DIMM]: exist

[Slave DIMM]:  absent

==============================================================================

*************cmd 0x6 0x9*************

**************cmd 0xfe***************

**************cmd 0x20***************

从诊断看POE没有问题，应该就是普通的UP/DOWN。 端口没有错包，不像交换机问题。 而且所有终端down到UP都是3S，像是终端有问题，之前有遇到过笔记本重启的过程中会有反复UP/DOWN，每次down 到up都是3S。

%Jan  1 03:14:57:643 2013 6HaoGuiShiPingWang-2 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/16 changed to down.

%Jan  1 03:14:59:566 2013 6HaoGuiShiPingWang-2 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/20 changed to down.

%Jan  1 03:14:59:573 2013 6HaoGuiShiPingWang-2 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/20 changed to down.

%Jan  1 03:14:59:590 2013 6HaoGuiShiPingWang-2 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet1/0/19 changed :00:617 2013 6HaoGuiShiPingWang-2 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet1/0/16 ch

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