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再请教下光衰问题

xy411381121
Spotlight
Spotlight
设备:Nexus7000 C7010 ;N2K-C2248TP-1GE
光板卡:N7K-M132XP-12L,10 Gbps Ethernet XL Module
光模块:SFP-10G-SR
在N7K上看到对N2K的收光过大,为0.81dBm
SFP Detail Diagnostics Information (internal calibration)
---------------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
---------------------------------------------------------------------------------
Temperature 46.48 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.27 V 3.63 V 2.97 V 3.46 V 3.13 V
Current 8.33 mA 11.80 mA 4.00 mA 10.80 mA 5.00 mA
Tx Power -2.45 dBm 1.69 dBm -11.30 dBm -1.30 dBm -7.30 dBm
Rx Power 0.81 dBm + 1.99 dBm -13.97 dBm -1.00 dBm -9.91 dBm
Transmit Fault Count = 1
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning
在N2K上看到收发光都是正常的
SFP Detail Diagnostics Information
----------------------------------------------------------------------------
Alarms Warnings
High Low High Low
----------------------------------------------------------------------------
Temperature 29.48 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.29 V 3.63 V 2.97 V 3.46 V 3.13 V
Current 7.20 mA 10.50 mA 2.50 mA 10.50 mA 2.50 mA
Tx Power -2.29 dBm 1.69 dBm -11.30 dBm -1.30 dBm -7.30 dBm
Rx Power -3.19 dBm -- 1.99 dBm -13.97 dBm -1.00 dBm -9.91 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning
我的疑问:
1.N2K上发光是-2.29,N7K收光是0.81,这光衰还往正数方向增大?
2.N2K上收光-3.19,明明没有超过Warnings的High与Low值,但为什么会出现- -的low-alarm告警?难道是BUG?而且有些正常端口存在- -的low-alarm告警,有些正常端口又没有- -的low-alarm告警
5 条回复5

YilinChen
Spotlight
Spotlight
替换法,换光模块,换端口,换交换机,对比测试一下,就知道了。

dmifly.chuang
Level 1
Level 1
拿台新的交换机,接个光模块,上去看光衰

kehozhou
Cisco Employee
Cisco Employee
1. SR用多模光纤,不用接光衰.
2. N7K的光模块温度有46度,但N2K只有30度,相差15度, 在同一机房里面,不应该相差这么多才对啊.

Luke Huang
Cisco Employee
Cisco Employee
n2k的光衰,是 attach fex去看还是怎么看的

eric888888
Spotlight
Spotlight
请问show logg有关于光衰的相关告警呢?
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