After you upgrade NSX-T Data Center, perform post-upgrade verification tasks to check whether the upgrade was successful. Verify the UpgradeAfter you upgrade NSX-T Data Center, you can verify whether the versions of the upgraded components have been updated. Delete NSX ControllersAfter a successful upgrade from NSX-T Data Center 2.3, you can delete the NSX-T Data Center 2.3 NSX Controllers. Enhance NSX Edge Performance after ESXi Host UpgradevSphere ESXi 6.7 supports Receive Side Scaling (RSS) for UDP which provides significant improvement in throughput. Use this feature for workloads that are sensitive to network latency and bandwidth. Update your NSX Edge settings for performance enhancement.