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ClusterSwitchConnectivity_Alert due to down port

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ontap-9
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hw
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Applies to

  • ONTAP 9
  • Switched clusters

Issue

  • ClusterSwitchConnectivity_Alert and ClusterIfInErrorsWarn_Alert seen in "system health alert show" output:

Alert ID: ClusterSwitchConnectivity_Alert
Alerting Resource: Node-n08
Indication Time: Wed Sep 17 15:26:48 2025
Description: The ethernet switch, with the name "switch2(FOCXXXXXXXX)", is not connected to all of the nodes in the cluster.
 

Alert ID: ClusterIfInErrorsWarn_Alert
Alerting Resource: switch2(FOCXXXXXXXX)/Ethernet1/14
Indication Time: Tue Sep 09 10:42:44 2025
Description     The percentage of inbound packet errors of switch interface "switch2(FOCXXXXXXXX)/Ethernet1/14" is above the warning threshold.
 

  • Node seen in the alert has a single cluster port down in network port show -role Cluster.

e0d MAC Address:    d0:xx:xx:xx:xx:xx (auto-unknown-fd-down)
               QSFP Vendor:         FINISAR CORP
               QSFP Part Number:    332-00440
               QSFP Serial Number:  X5CBFDF

From ifstat:

-- interface  e0d  (151 days, 4 hours, 50 minutes, 5 seconds) --
Media state: no carrier | Up to downs:        225 | HW assist:         514k 
 

  • Cluster LIF on e0d is moved to cluster port e0c and not home:

::> net int show -is-home false
  (network interface show)
            Logical    Status     Network            Current       Current Is
Vserver     Interface  Admin/Oper Address/Mask       Node          Port    Home
----------- ---------- ---------- ------------------ ------------- ------- ----
Cluster
            Node-n08_clus2
                         up/up    169.XXX.XX.XXX/16  Node-n08
                                                          e0c     false

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