b2科目四模拟试题多少题驾考考爆了怎么补救
b2科目四模拟试题多少题 驾考考爆了怎么补救

gigabitethernet0/0/1_ethernet音标_gigabitethernet接口

电脑杂谈  发布时间:2017-04-21 13:26:09  来源:网络整理
gigabitethernet0/0/1

如何查看华为交换机路由器光模块的收发光功率?

使用命令display transceiver verbose查看光模块的收发功率。gigabitethernet0/0/1版本不一样,显示信息有所差别,举例如下:

1、盒式交换机&框式交换机 V100R006C03&V100R006C05版本

RX Power(dBM)代表光模块接收功率,TXPower(dBM)代表光模块发送功率。

<Quidway> display transceiverintece gigabitethernet 0/0/1 verbose

GigabitEthernet0/0/1 transceiverinformation:

-------------------------------------------------------------

Common information:

Transceiver Type:1000_BASE_SX_SFP

Connector Type :LC

Wavelength(nm):850

Transfer Distance(m):300(50um),150(62.5um)

Digital Diagnostic Monitoring:YES

Vendor Name:SumitomoElectric

Vendor Part Number:HFBR-5710L

Ordering Name :

-------------------------------------------------------------

Manufacture information:

Manu. Serial Number:88K056C10353

Manufacturing Date:2008-08-08

Vendor Name:SumitomoElectric

-------------------------------------------------------------

Diagnostic information://Diagnostic information这一段落仅V100R006C03版本显示

Temperature(°C) :26.00

Temp High Threshold(°C) :85.00

Temp Low Threshold(°C) :-40.00

Voltage(V) :3.29

Volt High Threshold(V):3.64

Volt Low Threshold(V) :2.95

Bias Current(mA):4.57

Bias High Threshold(mA):9.00

Bias Low Threshold(mA) :2.00

RX Power(dBM):-40.00

RX Power High Threshold(dBM):0.00

RX Power Low Threshold(dBM) :-16.99

TX Power(dBM):-5.03

TX Power High Threshold(dBM):-2.22

TX Power Low Threshold(dBM) :-6.99

-------------------------------------------------------------

User information:

THIS_IS_A_TEST

-------------------------------------------------------------

Diagnostic information:

Temperature(°C) :40.21

Temp High Warning Threshold(°C) :93.00

Temp Low Warning Threshold(°C) :-30.00

Temp High Alarm Threshold(°C) :110.00

Temp Low Alarm Threshold(°C) :-40.00

Voltage(V):3.26

Volt High Warning Threshold(V):3.70

Volt Low WarningThreshold(V) :2.90

Volt High Alarm Threshold(V) :3.90

Volt Low Alarm Threshold(V) :2.70

Bias Current(mA):23.78

Bias High Warning Threshold(mA):70.00

Bias Low WarningThreshold(mA) :4.00

Bias High AlarmThreshold(mA) :80.00

Bias Low Alarm Threshold(mA) :2.00

RXPower(dBM) :-31.10

RXPower High Warning Threshold(dBM) :-1.00

RXPower Low Warning Threshold(dBM) :-20.00

RXPower High Alarm Threshold(dBM) :0.75

RXPower Low Alarm Threshold(dBM) :-23.97

TXPower(dBM):-5.78

TXPower High Warning Threshold(dBM) :-1.00

TXPower Low Warning Threshold(dBM) :-11.50

TXPower High Alarm Threshold(dBM) :0.99

TXPower Low Alarm Threshold(dBM) :-13.50

-------------------------------------------------------------

2、框式交换机 V200R002&V200R003版本

Current Rx Power(dBM)代表光模块当前接收功率, Current Tx Power(dBM)代表光模块当前发送功率。

<Quidway> display transceiver intecegigabitethernet 3/0/0 verbose

GigabitEthernet3/0/0 transceiverinformation:

-------------------------------------------------------------

Common information:

Transceiver Type:1000_BASE_SX_SFP

Connector Type :LC

Wavelength(nm):850

Transfer Distance(m):500(50um),300(62.5um)

Digital Diagnostic Monitoring:YES

Vendor Name:FINISAR CORP.

Vendor Part Number:FTLF8519P2BNL-HW

Ordering Name :

-------------------------------------------------------------

Manufacture information:

Manu. Serial Number:PEP3L5D

Manufacturing Date:2008-12-05

Vendor Name:FINISAR CORP.

-------------------------------------------------------------

Alarm information:

TXpower low

-------------------------------------------------------------

Diagnostic information:

Temperature(°C) :39

Voltage(V):3.31

Bias Current(mA):6.59

Bias High Threshold(mA):10.50

Bias Low Threshold(mA) :2.50

CurrentRx Power(dBM) :-2.23

Default Rx Power High Threshold(dBM):3.01

Default Rx Power LowThreshold(dBM) :-15.02

CurrentTx Power(dBM) :-2.45

Default Tx Power High Threshold(dBM):3.01

Default Tx Power LowThreshold(dBM) :-9.00

User Set Rx Power High Threshold(dBM) :3.01

User Set Rx Power Low Threshold(dBM):-15.02

User Set Tx Power High Threshold(dBM) :3.01

User Set Tx Power Low Threshold(dBM):-9.00

-------------------------------------------------------------

3、那么如何保证光模块的收发功率?

光模块的诊断信息中,可以查看当前发送和接收的光功率值,以及默认的最高和最低功率值。

如果接收功率低(RxPowerLow),说明本端接收到的信号过低,则可能出现端口不UP或者UP后报文收发有丢弃,此时请先排查传输距离是否过远,超出了该光模块的传输距离,再排查链路,如光模块、光纤是否有损坏,光纤单模多模是否用错,熔纤连接处质量是否可靠等,以及对端光模块发送功率是否过低。

如果接收功率高(RxPowerHigh),说明本端接收到的信号过高,可能原因是该光模块为长距光模块,而实际传输距离太短,导致信号未衰减,此时应在光模块上增加光衰,以对光模块进行保护。

如果发送功率低(TxPowerLow),说明该光模块发送信号不好,可能会导致对端接收功率低,而造成端口不UP或者UP后报文收发有丢弃,可能原因是光模块光口受污染,如灰尘积的太多等,此时请用棉签清洗光模块,然后再测试光口发光功率是否恢复正常。

如果发送功率高(TxPowerHigh),说明该光模块发送信号太强,可能会导致对端接收功率高,而造成对端光模块因接收功率持续过高而烧坏,可能原因是本端光模块故障,建议更换光模块。

因此,在端口插入光模块并对接成功后,要对发送或接收光功率方面的告警信息进行排查,避免因功率过低或者过高造成流量或者光模块不正常。


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