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端口 e7a 上的 CRC 错误和端口关闭

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metrocluster
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适用于

  • MetroCluster IP 配置
  • RCF
  • 后端 CISCO N9K-C9336C-FX2 集群交换机
  • AFF-A70 系统(ONTAP 9.18.1P5 及类似版本
  • 最近从 4-8-4 MetroCluster IP 配置迁移的系统

问题

在硬件更新和 MetroCluster IP 4-8-4 转换后,在两个站点的 mc-netapp-a04 和 mc-netapp-b04 节点上的集群互连端口 e7a 上观察到持续的 CRC 错误和链路抖动。反复看到以下日志消息:

Mon Aug 17 09:11:28 +0200 [mc-netapp-a04: kernel: netif.linkDown:info]: Ethernet e7a: Link down, check cable.
Mon Aug 17 09:11:28 +0200 [mc-netapp-a04: intr: netif.linkDown:info]: Ethernet e7a-18: Link down, check cable.
...
eventlogshow -event e7a
8/20/2026 15:41:31 mc-netapp-b04 ERROR vifmgr.port.monitor.failed: The "crc_errors" healthcheck for port e7a (node mc-netapp-b04) has failed. The port is operating in a degraded state.
8/20/2026 13:43:41 mc-netapp-b04 EMERGENCY vifmgr.clus.linkdown: The cluster port e7a on node mc-netapp-b04 has gone down unexpectedly.

其他症状:

  • EMS 日志中频繁出现 “crc_errors 运行状况检查” 失败。
  • 链路抖动和集群互连运行状况降级。
  • SFP 和线缆已被更换,但没有效果。
  • 即使在禁用和重置端口后,错误仍然存在。

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