If you need to upgrade both NSX and vSphere, VMware recommends completing the NSX upgrade first, and then completing the vSphere upgrade.

Check the VMware Product Interoperability Matrix to verify which versions of vSphere and ESXi are compatible with your NSX installation. See http://www.vmware.com/resources/compatibility/sim/interop_matrix.php.

See the appropriate version of the vSphere documentation for detailed instructions on upgrading vSphere, including the vSphere Upgrade Guide and the Installing and Administering VMware vSphere Update Manager Guide.

When you upgrade ESXi on a host, you must also install new NSX VIBs on the host to be compatible with the new ESXi version. NSX workloads cannot run on the upgraded host until the NSX VIBs are updated.

The procedure to upgrade ESXi when NSX 6.3.x is installed will vary depending on the version of ESXi you are upgrading to and from.

ESXi Upgrade Procedure When NSX 6.3.x is Installed

Host Upgrade Type

Host Maintenance Mode Requirements

Host Reboot Requirements

ESXi 5.5 to ESXi 6.0.

See Upgrade to ESXi 6.0 in an NSX Environment.

Host must stay in maintenance mode until ESXi upgrade and subsequent NSX VIB upgrade is complete.

Reboot is required during ESXi upgrade.

Reboot is required during subsequent NSX VIB upgrade.

ESXi 5.5 to ESXi 6.5.

See Upgrade to ESXi 6.5 in an NSX Environment.

Host can exit maintenance mode after ESXi upgrade. vMotion of VMs to VXLAN prepared vSphere Distributed Switches on the upgraded host is blocked until the subsequent NSX VIB upgrade is completed.

Reboot is required during ESXi upgrade.

Reboot is required during subsequent NSX VIB upgrade.

ESXi 6.0 to ESXi 6.5

See Upgrade to ESXi 6.5 in an NSX Environment.

Host can exit maintenance mode after ESXi upgrade. vMotion of VMs to VXLAN prepared vSphere Distributed Switches on the upgraded host is blocked until the subsequent NSX VIB upgrade is completed.

Reboot is required during ESXi upgrade.

Reboot is not required during subsequent NSX VIB upgrade.