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Management interfaces within ONTAP are unreachable during internal switch SP or BMC updates

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ontap-9
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hw
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Applies to

  • ONTAP 9
  • AFF and FAS Models

Issue

  • During the internal switch update of SP or BMC firmware management interfaces (LIFs) hosted on the same node's e0M port become briefly unavailable. 
  • EMS reports e0M port link down/up during internal switch update post SP/BMC firmware upgrade complete:

[Node_01: spnr_main: sp.eth.switch.upd.start:notice]: BMC is starting Ethernet switch auto-update from 18 to 19.
[Node_01: intr: netif.linkDown:info]: Ethernet e0M: Link down, check cable.
[Node_01: spnr_main: sp.eth.switch.upd.success:notice]: BMC Ethernet switch version updated from 18 to 19.
[Node_01: intr: netif.linkUp:info]: Ethernet e0M: Link up.

  • SP-LATEST-SYSTEM-EVENT-LOG reports e0M port link down/up during internal switch update post SP/BMC firmware upgrade complete:

Record 2125: Mon Feb 02 01:20:38.850000 2026 [Fud.normal]: retcode 0, Firmware install successful
Record 2129: Sun Jan 01 00:00:40.682986 2017 [BMC.notice]: Running primary version 11.12
Record 2160: Mon Feb 02 01:27:00.032021 2026 [BMC.notice]: Starting Ethernet switch auto-update...
Record 2162: Mon Feb 02 01:27:34.792271 2026 [IPMI.notice]: 03b5 | 02 | EVT: 0900ffff | Wrench_Port_Up | Assertion Event, "Device Disabled"
Record 2163: Mon Feb 02 01:27:36.659701 2026 [BMC.notice]: Switch auto-updated to latest version 19
Record 2165: Mon Feb 02 01:27:40.698782 2026 [IPMI.notice]: 03b7 | 02 | EVT: 0901ffff | Wrench_Port_Up | Assertion Event, "Device Enabled"

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