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e0M port flaps due to autonegotiation failure

  1. Last updated
    Mar 25, 2025
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Last Updated:
3/25/2025, 1:25:57 AM

Applies to

  • ONTAP 9
  • FAS/AFF Systems

Issue

  • The management port e0M is found to be flapping and the following events are reported:

[Node-01: vifmgr: vifmgr.portdown:notice]: A link down event was received on node Node-01, port e0M.
[Node-01: vifmgr: vifmgr.portup:notice]: A link up event was received on node Node-01, port e0M.

[Node-01: vifmgr: vifmgr.portdown:notice]: A link down event was received on node Node-01, port e0M.
[Node-01: vifmgr: vifmgr.portup:notice]: A link up event was received on node Node-01, port e0M.

  • The e0M port is degraded due to link_flapping:

vifmgr.port.monitor.failed: The "link_flapping" health check for port e0M (node cdotsom30h) has failed. The port is operating in a degraded state.

  • The port is found to be operating at 10 Mbps instead of 1Gbps.

 

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