Upgrading VMware NSX from version 3.2.0.1 to 4.1.0.2 involves upgrading its components in the following order: Edges, Hosts, and Management Nodes.
Prerequisites
Review the NSX Upgrade Checklist to track your work on the NSX upgrade process.
Procedure
What to do next
Perform Post-Upgrade Tasks to verify whether the upgrade is successful.
After the NSX upgrade is successful, verify the clusters prepared for NSX:
Log in to NSX manager by using the Virtual IP (VIP) address.
Navigate to System > Fabric > Node > Host Transport Nodes.
Verify that all the clusters prepared for NSX are in Success state without any error.
If there is any error on the ESXi hosts in the cluster, reconfigure transport node by selecting the CONFIGURE NSX option on the cluster using the existing transport node profile. If there is any other upgrade issue, see Troubleshooting Upgrade Failures.