由于交换机SFP出现故障、Brocade FC端口脱机且NO_Sync状态

适用场景

• Brocade FC 交换机
• 光纤操作系统(FOS) 

问题描述

• 、Brocade FC端口处于根据switchshow 输出No_Sync 和disabled 状态

/fabos/bin/switchshow :
Index Slot Port Address Media  Speed     State   Proto
============================================================
 106   11   10   676a40   id   N32  No_Sync   FC  Disabled

• sfpshow 显示Tx值不在建议范围内

=============
Slot 11/Port 10:
=============
Transceiver: 6804404000000000 8,16,32_Gbps M5 sw Short_dist
Vendor PN:   57-1000333-01
RX Power:   -2.2   dBm (604.6uW)
TX Power:   -27.2   dBm (1.9   uW)

注：已禁用端口且TX电源为-40表示激光已关闭，并不一定表示出现故障。

• 启用此端口可确认TX电源始终小于300 UF

• 根据switchshow 输出、Brocade FC端口处于No_Sync 状态

/fabos/bin/switchshow :
Index Slot Port Address Media  Speed     State   Proto
============================================================
127   12   15   107f40   id   N32     No_Sync   FC

• Porterrshow 报告大量介质错误，包括pcs error 、uncorr errors 、c3 discards 以及link fail  和loss_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
  296:   12.4k   12.1k   0     0     0     0     0     0     0    11    1.5k   57.3k    9.2k  0     0    11     0   252   43.7k
 

• portstatsshow 输出显示端口为offline & no_syn c state，禁用原因为port throttled 。

portshow 127
portDisableReason: Port Throttled
portCFlags: 0x0
portFlags: 0x61   PRESENT DISABLED
LocalSwcFlags: 0x0
portType:  26.0
portState: 2      Offline
Protocol: FC
portPhys:  5      No_Sync       portScn:   2      Offline

• portstatsshow 输出显示端口为offline & no_syn c state

portshow 330
portDisableReason: None
portCFlags: 0x0
portFlags: 0x4021        PRESENT U_PORT DISABLED LED
LocalSwcFlags: 0x0
portType:  26.0
portState: 2      Offline
Protocol: FC
portPhys:  5      No_Sync       portScn:   2      Offline

• Errdump 报告链路故障和丢失信号错误以及规则defNON_E_F_PORTSSTATE_CHG_20_FENCE  和ALL_SFP_32GSWL_TX_POWER_251 正在触发

2023/01/20-15:37:58, [MAPS-2022], 23317, SLOT 1 | FID 128, WARNING, SWITCHXX, slot6 port8 HBAXX_HBA1 DISABLED_LR_11112022, U-Port 6/8, Condition=ALL_PORTS(LOSS_SIGNAL/min>3), Current Value:[LOSS_SIGNAL, 70 LOS], RuleName=defALL_PORTSLOSS_SIGNAL_3, Dashboard Category=Port Health.
2023/01/20-15:38:28, [MAPS-2018], 23318, SLOT 1 | FID 128, WARNING, SWITCHXX, slot6 port8 HBAXX_HBA1 DISABLED_LR_11112022, U-Port 6/8, Condition=ALL_PORTS(LF/min>3), Current Value:[LF, 4 LFs], RuleName=defALL_PORTSLF_3, Dashboard Category=Port Health.
2023/03/06-17:48:07, [MAPS-1003], 89981, SLOT 1 | FID 128, WARNING, SWITCHXX, slot9 port15, U-Port 9/15, Condition=NON_E_F_PORTS(STATE_CHG/min>11), Current Value:[STATE_CHG, 14], RuleName=defNON_E_F_PORTSSTATE_CHG_11, Dashboard Category=Port Health.
2023/03/06-17:48:13, [MAPS-1010], 89983, SLOT 1 | FID 128, ERROR, SWITCHXX, Port(s) fenced due to RuleName=defNON_E_F_PORTSSTATE_CHG_20_FENCE, Condition=NON_E_F_PORTS(STATE_CHG/min>20), Obj:slot9 port15, U-Port 9/15 [ STATE_CHG,21]
2023/06/15-18:16:27, [MAPS-1005], 182673, SLOT 1 | FID 128, WARNING, H1NETxxx, SFP 12/15, Condition=ALL_32GSWL_SFP(TXP<=251), Current Value:[TXP, 251 uW], Rule ALL_SFP_32GSWL_TX_POWER_251 triggered 57 times in 1 day and last trigger time Thu Jun 15 16:38:27 2023, Dashboard Category=Port Health.
023/06/14-17:29:26, [MAPS-1003], 182281, SLOT 1 | FID 128, WARNING, H1NETxxx, slot12 port15, F-Port 12/15, Condition=ALL_HOST_PORTS(LR/min>1), Current Value:[LR, 2 LRs], RuleName=ALL_HOST_PORTS_LR_1_ELK, Dashboard Category=Port Health.
2023/06/14-17:30:08, [MAPS-1003], 182282, SLOT 1 | FID 128, WARNING, H1NETxxx, slot12 port15, F-Port 12/15, Condition=ALL_HOST_PORTS(LR/min>4), Current Value:[LR, 5 LRs], RuleName=ALL_HOST_PORTS_LR_4, Dashboard Category=Port Health.
2023/06/14-17:30:26, [MAPS-1003], 182283, SLOT 1 | FID 128, WARNING, H1NETxxx, slot12 port15, F-Port 12/15, Condition=ALL_HOST_PORTS(LR/min>1), Current Value:[LR, 8 LRs], RuleName=ALL_HOST_PORTS_LR_1_ELK, Dashboard Category=Port Health.          
2023/06/14-09:27:56 (IST), [MAPS-1003], 915764, SLOT 1 | FID 128 | PORT 9/42, WARNING, Brocade, slot9 port42-H.DELL_Chassis.xx.10.226.xx.xx.3F07xxx.SI, U-Port 9/42, Condition=ALL_OTHER_F_PORTS(STATE_CHG/min>5), Current Value:[STATE_CHG, 9], RuleName=defALL_OTHER_F_PORTSSTATE_CHG_5, Dashboard Category=Port Health, Quiet Time=None.
2023/06/14-09:27:56 (IST), [MAPS-1003], 915763, SLOT 1 | FID 128 | PORT 9/42, WARNING, Brocade, slot9 port42-H.DELL_Chassis.xx.10.226.xx.xx.3F07xx1.SI, U-Port 9/42, Condition=ALL_HOST_PORTS(STATE_CHG/min>5), Current Value:[STATE_CHG, 9],
RuleName= defALL_HOST_PORTSSTATE_CHG_5, Dashboard Category=Port Health, Quiet Time=None.

• sfpshow 将低Rx功率和Tx功率报告为-INF：

=============
Slot  6/Port  8:
=============
RX Power:    -5.5    dBm (284.6uW)
TX Power:    -inf    dBm (0.0   uW)

• sfpshow 将Tx功率报告为-inf ：

=============
Slot  9/Port 15:
=============
RX Power:   -1.2   dBm (751.4uW)
TX Power:   -inf   dBm (0.0   uW)

• sfpshow 报告低Tx功率：

=============
Slot 12/Port 15:
=============
RX Power:   -2.5   dBm (556.0uW)
TX Power:   -8.4   dBm (144.1 uW)

• Fabriclog报告链路轻拍、如下所示：

17:47:01.645590 *Removing all nodes from port         A2,P0  A2,P0  79   NA
17:47:01.645838 SCN Port F_PORT                A2,P1  A2,P0  79   NA
17:47:01.646695 SCN Port Offline;rsn=0x3,g=0x66c       A2,P0  A2,P0  79   NA
17:47:01.646703 *Removing all nodes from port         A2,P0  A2,P0  79   NA
17:47:02.439648 SCN LR_PORT(0);g=0x66c            A2,P0  A2,P0  79   NA
17:47:03.316504 SCN LR_PORT(0);g=0x66c            A2,P0  A2,P0  79   NA
17:47:03.366059 SCN Port Online; g=0x66c,isolated=0      A2,P0  A2,P1  79   NA