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MetroCluster IP port flapping

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Applies to

  • ONTAP 9
  • MetroCluster IP

Issue

  • Repeating MccIp_PortOfflineAlert autosupports are received.
Example:
 
Fri Feb 04 15:43:33 +0000 [ClusterA-01: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process nchm: MccIp_PortOfflineAlert[ClusterA_t6nex0_e1a-10].
 
  • In some cases port keeps flapping very frequently on the node:

[Node1: kernel: intr: netif.linkDown:info]: Ethernet e0f: Link up.
[Node1: kernel: intr: netif.linkUp:info]: Ethernet e0f: Link down, check cable.

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