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Ethernet switch is showing degraded due to SwitchReboot_Alert

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ontap-9
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hw
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Applies to

  • Cluster network Switch
  • ONTAP 9

Issue

  • After the switch reboot, the cluster displays a switch reboot alert in the alert section and the switch-up time is less than 50 days. ONTAP EMS events example:

Tue Jun 25 04:36:52 +0200 [Node-02: cshmd: hm.alert.raised:alert]: Alert Id = SwitchReboot_Alert , Alerting Resource = switch-01 raised by monitor ethernet-switch

  • From the switch logs, we noticed that switch was rebooting frequently due to kernel panic:

    Mon Jun 15 10:55:57 2025:  Card Uptime Record
    ----------------------------------------------
    Uptime: 176868, 2 days 1 hour(s) 7 minute(s) 48 second(s)
    Reset Reason: Kernel Panic
    Card Mode..........................:  Runtime

    Sat Jun 13 09:49:56 2025:  Card Uptime Record
    ----------------------------------------------
    Uptime: 107, 0 days 0 hour(s) 1 minute(s) 47 second(s)
    Reset Reason: Kernel Panic
    Card Mode..........................:  Runtime

    Sat Jun 13 09:19:30 2025:  Card Uptime Record
    ----------------------------------------------
    Uptime: 126356, 1 days 11 hour(s) 5 minute(s) 56 second(s)
    Reset Reason: Kernel Panic
    Card Mode..........................:  Runtime

    Thu Jun 11 22:15:22 2025:  Card Uptime Record
    ----------------------------------------------
    Uptime: 108, 0 days 0 hour(s) 1 minute(s) 48 second(s)
    Reset Reason: Kernel Panic
    Card Mode..........................:  Runtime

  • ONTAP generates an alert indicating that a cluster switch has rebooted:
Node Node-02
Monitor ethernet-switch
Alert ID SwitchReboot_Alert
Alerting Resource switch-01
Subsystem Switch-Health
Indication Time Tue Jun 25 04:36:52 2024
Perceived Severity Minor
Probable Cause Configuration_error
Description The ethernet switch has recently rebooted.
Corrective Actions If the Ethernet switch was not rebooted on purpose, then
check the switch to ensure that it is operating normally.
Possible Effect Communication problems and network connectivity issues might occur.
Acknowledge false
Suppress false
Policy SwitchReboot_Policy

Switch Previous Uptime: 16 days 16:43

  • A ClusterSwitchConnectivity_Alert might be active as well.

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