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Cisco C9336C switch unresponsive with all LEDs off

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Category:
fabric-interconnect-and-management-switches
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HW
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Applies to

Cisco C9336C Cluster Network Switch

Issue

  • ONTAP events and EMS logs for ISL ports down, reported by the partner switch:
[node_name: cshmd: hm.alert.raised:alert]: Alert Id = ClusterIfIslDownWarn_Alert , Alerting Resource = switch_name(ABC12345DEF)/port-channel1 raised by monitor ethernet-switch
[node_name: cshmd: hm.alert.raised:alert]: Alert Id = ClusterIfIslDownWarn_Alert , Alerting Resource = switch_name(ABC12345DEF)/Ethernet1/35 raised by monitor ethernet-switch
[node_name: cshmd: hm.alert.raised:alert]: Alert Id = ClusterIfIslDownWarn_Alert , Alerting Resource = switch_name(ABC12345DEF)/Ethernet1/36 raised by monitor ethernet-switch
[node_name: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process cshm: ClusterIfIslDownWarn_Alert[switch_name(ABC12345DEF)/Ethernet1/35].
  • All cluster and management ports down in the affected switch
  • All LEDs off
  • Issue remains after a switch power cycle

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