我正在研究 4 个 PoE 摄像机无法开机的问题。交换机型号Dell N2048P 系列。模型末尾的“P”代表“PoE Enabled”,因此,此功能/应该可用。
此交换机的默认行为始终尝试探测 PoE 设备,除非power inline never
在端口配置范围内设置。但是show power inline
在任何端口上都显示Test-Fail
状态,没有电压和空温。
SWDEP_08_XX#show power inline gigabitethernet 1/0/41
Port Powered Device State Priority Status Class Power[mW]
--------- ------------------------ ----- -------- ---------- ------- ---------
Gi1/0/41 auto Low Test-Fail Unknown
Overload Counter............................... 0
Short Counter ................................. 0
Denied Counter................................. 0
Absent Counter................................. 0
Invalid Signature Counter...................... 0
Output Volts................................... 0
Output Current................................. 0
Temperature.................................... N/A
在浏览一些戴尔论坛和阅读手册页后,我到目前为止所做的工作:
- 更新固件和cpld。我的交换机使用的版本低于此线程上报告的版本。
- 在其他相同型号的交换机上测试了摄像头,它们启动并运行。
- 在全局配置范围内尝试了所有可能的电源内联检测方案。
- 尝试启用和禁用电源功能或按照此处的说明在各个端口上重置它们
- 尝试了其他交换机端口(并且所有端口都显示
Test-fail
) - 交换机与能源物理断开
不依赖 PoE 的设备按预期工作(千兆自动)。
将开关与健康开关的结果进行比较:
非工作开关:
SWDEP_08_XX#show power inline
Unit Status
===========
Unit........................................... 1
Power.......................................... On
Total Power.................................... 0 Watts
Threshold Power................................ 0 Watts
Consumed Power................................. 0 Watts
Usage Threshold................................ 90%
Power Management Mode.......................... Dynamic
Power Detection Mode........................... dot3at+legacy
SWDEP_08_XX#show system temperature
System Thermal Conditions:
Unit Temperature State
(Celsius)
---- ----------- -----------
1 49 Good
Temperature Sensors:
Unit Description Temperature
(Celsius)
---- ------------------ -----------
1 MAC 49
1 PHY 37
1 POE Ctrl 1 0
1 POE Ctrl 2 0
1 POE Ctrl 3 0
1 POE Ctrl 4 0
1 POE Ctrl 5 0
1 POE Ctrl 6 0
工作开关:
SWDEP_05_XX#show power inline
Unit Status
===========
Unit........................................... 1
Power.......................................... On
Total Power.................................... 850 Watts
Threshold Power................................ 765 Watts
Consumed Power................................. 7 Watts
Usage Threshold................................ 90%
Power Management Mode.......................... Dynamic
Power Detection Mode........................... dot3at+legacy
SWDEP_05_XX#show power inline gigabitethernet 1/0/41
Port Powered Device State Priority Status Class Power[mW]
--------- ------------------------ ----- -------- ---------- ------- ---------
Gi1/0/41 auto Low On Class0 3200
Overload Counter............................... 0
Short Counter ................................. 0
Denied Counter................................. 0
Absent Counter................................. 0
Invalid Signature Counter...................... 0
Output Volts................................... 53
Output Current................................. 60
Temperature.................................... 39
SWDEP_05_XX#show system temperature
System Thermal Conditions:
Unit Temperature State
(Celsius)
---- ----------- -----------
1 52 Good
Temperature Sensors:
Unit Description Temperature
(Celsius)
---- ------------------ -----------
1 MAC 52
1 PHY 39
1 POE Ctrl 1 41
1 POE Ctrl 2 41
1 POE Ctrl 3 41
1 POE Ctrl 4 39
1 POE Ctrl 5 43
1 POE Ctrl 6 49
我的问题:Test-fail
交换机的POE控制模块上的状态和空温是否足以证明交换机内部的特定PoE硬件出现故障?