Brocade交换机端口脱机且处于"无光"状态且Tx功率低

适用场景

Brocade交换机

问题描述

• 交换机端口状态 No_light 在 switchshow 输出下方显示为：

Index Port Address Media Speed  State    Proto
==============================================
 ----- Truncated -----
   5   5   010500   id     4G   No_Light    FC  

• Portshow 受影响的端口报告 offline 状态：

portshow 5
portDisableReason: None
portCFlags: 0x0
portFlags: 0x21    PRESENT U_PORT DISABLED
LocalSwcFlags: 0x0
portType:  26.0
portState: 2   Offline  
Protocol: FC
portPhys:  4   No_Light    portScn:   2   Offline   
port generation number:   748
state transition count:   11    

• sfpshow 报告Tx值过低

Slot  5/Port 21:
=============
Identifier:  3    SFP
Connector:   7    LC
Transceiver: 6804404000000000 8,16,32_Gbps M5 sw Short_dist
[...]
Vendor Name: BROCADE
Vendor OUI:  00:05:1e
Vendor PN:   57-1000333-01
Vendor Rev:  A
[...]
Temperature: 59      Centigrade
Current:     7.640   mAmps
Voltage:     3327.1  mVolts
RX Power:    -25.1   dBm (744.6  uW)
TX Power:    -1.3    dBm (4.9 uW)