How to perform NVDS to VDS migration for a few ESXi transport nodes only

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VMware NSX

You do not want to perform the NVDS to VDS migration at cluster level
You want to perform NVDS to VDS migration on one or few set of ESXi transport node at a time

VMware NSX-T Data Center

This article talks about steps that you can follow to perform NVDS to VDS migration on one or few set of ESXi transport node at a time

The below steps can be followed to perform NVDS to VDS migration on single or few ESXi host at a time.

NVDS to VDS migration via command line:

Put the ESXi host into maintenance mode
Login to NSX Manager node VM as admin user
Run the command vds-migrate precheck to verify that the hosts are ready for migration
Run the command vds-migrate show-topology to retrieve the recommended topology
Run the command vds-migrate apply-topology to create a VDS with the recommended topology
Note: Validate if the VDS is created on the vCenter
Login to the NSX manager node vm as root user
Using VIM editor, create a file /opt/tnid in the NSX manager node and update the ESXi transport node UUID in the file
Note: Only the required ESXi transport node UUID should be added in the /opt/tnid file.
Switch back to the admin user
Run the command vds-migrate tn-list /opt/tnid to initiate the NVDS to VDS migration
Note: NVDS to VDS migration will be performed on all the ESXi host UUID updated in the /opt/tnid file
Once the migration task is completed, take the ESXi host out of maintenance mode
Confirm the ESXi host is added to the new CVDS created in the vCenter
Repeat steps 7 to 11 only for the next batch of ESXi transport nodes

If you face any issue during the process, you can raise a support request with Broadcom support team by following Creating and managing Broadcom support cases

If you are planning to do the NVDS to VDS migration at cluster level, follow Migrate Host Switch to vSphere Distributed Switch NSX document.

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