由于缆线故障、Brocade交换机端口脱机并处于"无光"状态、Rx电源低

适用场景

Brocade 交换机上的端口

问题描述

• 交换机端口状态显示为 No_light 输出下方switchshow：

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

• porterrshow输出显示出现链路故障、丢失SIG错误

/fabos/cliexec/porterrshow :
frames     enc   crc    crc    too   too    bad    enc   disc   link   loss   loss   frjt   fbsy   c3timeout    pcs    uncor
tx     rx    in    err    g_eof  shrt   long   eof   out   c3    fail   sync   sig            tx    rx    err    err
130:  403   471     0     0    0     0     0    0     0     0   334    0    5.4k  0     0     0    0     0     0

• Portshow 受影响端口的状态报告：offline

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    

• 网络结构日志显示该端口多次发生转接

Switch 0; Thu Jun  1 19:17:40 2023 IST (GMT+5:30)
19:17:40.873933 SCN Port Offline;rsn=0x2,g=0xf1e       A2,P0  A2,P0  130  NA
19:17:40.873942 *Removing all nodes from port        A2,P0  A2,P0  130  NA
19:22:14.346217 SCN LR_PORT(0);g=0xf1e            A2,P0  A2,P0  130  NA
19:22:14.396548 SCN Port Online; g=0xf1e,isolated=0     A2,P0  A2,P1  130  NA
19:22:14.396643 Port Elp engaged               A2,P1  A2,P0  130  NA
19:22:14.396657 *Removing all nodes from port        A2,P0  A2,P0  130  NA
19:22:14.397110 SCN Port F_PORT               A2,P1  A2,P0  130  NA
19:22:14.444090 SCN Port Offline;rsn=0x2,g=0xf20       A2,P0  A2,P0  130  NA
19:22:14.444095 *Removing all nodes from port        A2,P0  A2,P0  130  NA
19:22:19.256279 SCN LR_PORT(0);g=0xf20            A2,P0  A2,P0  130  NA
19:22:30.799147 SCN LR_PORT(0);g=0xf20            A2,P0  A2,P0  130  NA
19:22:30.899258 SCN Port Online; g=0xf20,isolated=0     A2,P0  A2,P1  130  NA
19:22:30.899357 Port Elp engaged               A2,P1  A2,P0  130  NA
19:22:30.899371 *Removing all nodes from port        A2,P0  A2,P0  130  NA
19:22:30.900041 SCN Port F_PORT               A2,P1  A2,P0  130  NA   

• sfpshow 报告Rx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 (3.1  uW)
TX Power:    -1.3    dBm (743.9 uW)

• 在错误转储日志中观察到端口的传输字(ITW)无效错误

2022/11/27-00:23:05, [MAPS-1003], 84606, SLOT 2 | FID 128, WARNING, NTTC_X6_108_FAB2, slot10 port38, F-Port 10/38, Condition=ALL_TARGET_PORTS(ITW/min>11), Current Value:[ITW, 237558518 ITWs], RuleName=defALL_TARGET_PORTSITW_11, Dashboard Category=Port Health.
2022/11/27-00:24:05, [MAPS-1003], 84607, SLOT 2 | FID 128, WARNING, NTTC_X6_108_FAB2, slot10 port38, F-Port 10/38, Condition=ALL_TARGET_PORTS(ITW/min>11), Current Value:[ITW, 222669296 ITWs], RuleName=defALL_TARGET_PORTSITW_11, Dashboard Category=Port Health