The HBAs on ESXi host report a 'link-down' status within the vSphere client
vmhba64 lpfc link-down fc.################################ (0000:##:00.0) Emulex Corporation Emulex LPe35000/LPe36000 Fibre Channel Adapter
vmhba65 lpfc link-down fc.################################ (0000:##:00.1) Emulex Corporation Emulex LPe35000/LPe36000 Fibre Channel Adapter
vmhba66 lpfc link-down fc.################################ (0000:##:00.1) Emulex Corporation Emulex LPe35000/LPe36000 Fibre Channel Adapter
vmhba67 lpfc link-down fc.################################ (0000:##:00.0) Emulex Corporation Emulex LPe35000/LPe36000 Fibre Channel Adapter
VMware vSphere ESXi 8.X
The ports are in 'down' state at the hardware level.
The issue may be due to an SFP issue or an issue with the FC cards themselves. Engage hardware vendor to investigate at the hardware level.