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CSHM alert generated for Interface-Level is up but is not passing unicast traffic

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ontap-9
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hw
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Applies to

  • ONTAP 9
  • Cluster Switch Health Monitor (CSHM)
  • Cisco cluster switches

Issue

  • CSHM alert generated:

               Node: cluster-04
           Alert ID: SwitchIfDead_Alert
           Resource: Ethernet1/10
           Severity: Major
    Indication Time: Sat Jul 19 19:55:06 2025
           Suppress: false
        Acknowledge: false
     Probable Cause: The interface switch-01(XXXXXXXXXXX)/Ethernet1/10 is up, but
                     it is not passing unicast traffic.
    Possible Effect: The lack of transmit or receive traffic reported by
                     the switch can indicate issues with port-level or
                     switch-level data packet forwarding.
 Corrective Actions: 1) Check interface counters and neighbor discovery information to verify the port's activity.
                     2) Check cluster and switch health status.

  • The ports generated in the alert are not connected to NetApp nodes

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