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Brocadeスイッチポートがオフラインで、「No light」状態であり、エンドデバイスハードウェアの障害が原因でRxパワーが低/-infである

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環境

Brocadeスイッチ

問題

  • switchshow  の出力でスイッチポートがフラップし、状態がNo_light と表示されます。

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

  • Portshow 影響を受けたポートの offline  ステータスを報告します。

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 レポートの Rx値が低すぎます

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)

  • sfpshow レポートRx to be -inf

=============
Slot  4/Port  6:
=============
Identifier:  3   SFP
Connector:   7   LC
Transceiver: 6804406000000000 8,16,32_Gbps M5 sw Inter,Short_dist
..
Vendor Name: BROCADE
Vendor OUI:  00:05:1e
Vendor PN:   57-1000485-01
Vendor Rev:  B
Wavelength:  850  (units nm)
...
O-Wrap Control: 0
..
Current:    7.496   mAmps
Voltage:    3274.5  mVolts
RX Power:   -inf   dBm (0.0  uW)
TX Power:   -1.0   dBm (798.8 uW)

  • portershowでlinkfail、loss sig、およびpcsエラーが報告されました

/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
  22:   5.1g   1.2g   0     0     0     0     0     0     0     0    12     0    16     0     0     0     0    21     3

  • LR_OUT sshow_fabric ログにエラーが報告されました:

23:32:24.171xx4 SCN AC_PORT g=0xxc8 LR_OUT          A2,P2  A2,P3  22   NA
23:32:24.17xx48 *Snd port state: P3              A2,P3  A2,P3  22   NA
23:32:24.25xx29 *Snd port state: P0              A2,P0  A2,P0  22   NA

  • スイッチのケーブルチェックとSFPが交換されましたが、問題はまだ維持されています
  • スイッチはerrdumpに次のエラーも記録することがあります。
    2024/06/24-10:13:18 (IST), [MAPS-1003], 754746, SLOT 1 | FID 128 | PORT 9/19, WARNING, NTTC_X6_108_FAB2, slot9 port19-H.LIN.HBCNBMOBPJS1.10.227.204.78.JZ6KPT3.HBCNBMOBPJ, U-Port 9/19, Condition=ALL_PORTS(LOSS_SIGNAL/min>3), Current Value:[LOSS_SIGNAL, 19 LOS], RuleName=defALL_PORTSLOSS_SIGNAL_3, Dashboard Category=Port Health, Quiet Time=None. 

 

 

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