VCF on Dell VxRail: VI-WLD cluster add failed with error "Perform dvs related validations"

During Workload domain Cluster Add for VI-WLD, a user may see the below error in the Tasks pane of the SDDC manager:

Description: Perform dvs related validations. Failed
Error: Incompatible vmnic passed in host hostxx.abc.com specification

Domainmanager.log:

2023-02-03T14:19:05.021+0000 INFO  [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.e.s.c.c.v.vsphere.VcManagerBase,dm-exec-5]  In total 5 vmnics are in-use: ["vusb0","vmnic3","vmnic7","vmnic2","vmnic5"]
2023-02-03T14:19:05.021+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  In Use Pnics ["vusb0","vmnic3","vmnic7","vmnic2","vmnic5"]
2023-02-03T14:19:05.021+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Translating for vmnic0
2023-02-03T14:19:05.021+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Link speed null
2023-02-03T14:19:05.021+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Translating for vmnic1
2023-02-03T14:19:05.022+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Link speed null
2023-02-03T14:19:05.022+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Translating for vmnic2
2023-02-03T14:19:05.022+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Link speed {"speedMb":25000,"duplex":true}
2023-02-03T14:19:05.022+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Translating for vmnic3
2023-02-03T14:19:05.022+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Link speed {"speedMb":25000,"duplex":true}
2023-02-03T14:19:05.022+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Translating for vmnic4
2023-02-03T14:19:05.022+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Link speed {"speedMb":25000,"duplex":true}
2023-02-03T14:19:05.022+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Translating for vmnic5
2023-02-03T14:19:05.022+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Link speed {"speedMb":25000,"duplex":true}
2023-02-03T14:19:05.023+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Translating for vmnic6
2023-02-03T14:19:05.023+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Link speed null
2023-02-03T14:19:05.023+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Translating for vmnic7
2023-02-03T14:19:05.023+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Link speed {"speedMb":25000,"duplex":true}
2023-02-03T14:19:05.023+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Translating for vusb0
2023-02-03T14:19:05.023+0000 DEBUG [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.v.v.p.service.NICServicePlugin,dm-exec-5]  Link speed {"speedMb":100,"duplex":true}
2023-02-03T14:19:05.036+0000 ERROR [vcf_dm,cf4d3c3d17f10a83,bd58] [c.v.e.s.o.model.error.ErrorFactory,dm-exec-5]  [46IH24] VSPHERE_INCOMPATIBLE_VMNIC_SPEC_FAILED Incompatible vmnic vmnic6 passed in host vh01-abc.xyz specification

A bad NIC status on one of the Hosts in the cluster that is added causes this error.
It could be either the physical NIC is Down or the link speed of the NIC is not matching with other NICs on the host.

To resolve this issue:

Identify the reported host and the physical NIC from the domainmanager log file.
Check the Physical NIC status and link speed. If the port is Down or the link speed is not correct, then perform the below steps one by one until the issue is resolved:

1. Try reseating the network cable.
2. Validate the switch port configuration.
3. Swap the Network cable with a known good one.
4. Reboot the host and check vmnic status.

Once the Physical NIC status is good then:

5. Retry failed workload domain cluster Add task on SDDC manager.