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Brocade E 端口上报告的 PCS 错误和不可纠正错误

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适用于

Brocade 交换机

问题

  • PCS Uncor errors 在 Brocade 交换机上porterrshow 下的 ISL 端口上观察到:

/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

 47:  117.2m 543.3m   0    0    0    0    0    0    0    0    0    0    0    0    0    0    0   12.4k   1.9k
 

/fabos/bin/switchshow:
  47  47   022f00   id   N16    Online    FC  LE E-Port  10:00:88:94:71:9d:xx:xx "SWITCH" (downstream)

  • 交换机的 ISL 端口在抖动。
  • RX power 报告: 

=============
Port 47:
=============
RX Power:   -17.7   dBm (17.0 uW)

TX Power:   -0.4   dBm (906.6 uW)

 

  • 检查交换机端的 Rx 功率 sfpshow ,并确保 Rx 功率在 推荐范围内。
  • Low Rx 功率表示交换机上游存在问题,请参阅 由于电缆故障导致 Brocade 交换机报告低 Rx 功率
  • 或者,插入已知良好的设备进行故障隔离。
  • 清除交换机统计信息(statsclear 和 slotstatsclear),并观察端口(使用 porterrshow )以进一步验证是否仍在记录错误。
  • 如果错误仍然存在,请继续执行解决方案。

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