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HA interconnect alerts reported due a switch reboot

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Applies to

  • ONTAP 9
  • MetroCluster IP
  • Back-end IP switches

Issue

  • HA INTERCONNECT DOWN and MccIp_PortOfflineAlert reported on both nodes in one of the clusters

Monitor      node-connect
Alert ID       MccIp_PortOfflineAlert

Alerting Resource           nodename_e0b-121_e0b-121
Subsystem                           MetroCluster_Node
Indication Time                Mon Dec 29 11:14:17 2025
Perceived Severity         Major
AutoSupport Triggered          true
Probable Cause                Cable_tamper

Corrective Actions

1. Ensure that the link has not been tampered with.
2. Verify that the physical status of the adapter is "Up" by using the "metrocluster interconnect adapter show" command.

Node ID                                nodename

Alert Clear Time              Mon Dec 29 11:24:17 2025

  • sysconfig -a output shows the nodes T6 card ports , connected to the same network as down:
slot 1: Dual 40/100G Ethernet T62100-CR
                                e1a MAC Address:    XX:XX:XX:XX:XX:XX (auto-100g_sr4-fd-up)
                                    QSFP Vendor:         Mellanox
                                    QSFP Part Number:    332-00440
                                    QSFP Serial Number:  MTXXXXXXXXX
                                e1b MAC Address:    XX:XX:XX:XX:XX:XX (auto-unknown-fd-down)
                                    QSFP Vendor:
                                    QSFP Part Number:
                                    QSFP Serial Number:

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