After performing a V2T migration, vDS portgroups exist named nsx.LogicalSwitch:UUID
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Article ID: 318292
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Updated On:
Products
VMware NSX
Issue/Introduction
Symptoms:
vSphere 7.0
An NSX Data Center for vSphere environment has been migrated to NSX-T Data Center using the Migration Coordinator
As part of the migration a vDS portgroup was migrated to a segment
Post migration there is also a vDS portgroup called "nsx.LogicalSwitch:<UUID>"
Checking the UUID in NSX-T UI search it maps to the segment
Therefore there are 3 portgroups
the original vDS portgroup that existed before migration
the new NSX segment portgroup
the portgroup "nsx.LogicalSwitch:<UUID>"
Some VMs on the segment connect to the segment portgroup as expected but some connect to the "nsx.LogicalSwitch:<UUID>" portgroup
Environment
VMware NSX-T Data Center VMware NSX-T Data Center 3.x
Cause
Due to a software issue on the ESXi host side, after an NSX-V to NSX-T migration there may a problem with vDS portgroup backend mappings. This results in portgroups of name nsx.LogicalSwitch:<UUID>.
Resolution
This issue is resolved in VMware ESXi 7.0 Update 2.
Workaround: To workaround the issue
For each problematic portgroup
Identify a problem portgroup to be rectified, nsx.LogicalSwitch:<UUID>
On the NSX-T UI, search for the UUID and confirm the name of the segment it corresponds to
From the vSphere client delete the original unused vDS portgroup that the VMs on this segment were migrated from
On the vSphere client, from networking view, select the "nsx.LogicalSwitch:UUID" portgroup and select the VM tab
For each VM, right click, select Edit Settings and click OK (Even though no change is made it triggers a refresh)
Once all VMs have been refreshed the "nsx.LogicalSwitch:UUID" portgroup should automatically be removed
Note: Snapshots on affected VMs will interfere with this workaround. Any snapshots will need to be consolidated for affected VMs.