Before you install or upgrade NSX, consider your network configuration and resources. You can install one NSX Manager per vCenter Server, one instance of Guest Introspection and Data Security per ESXi™ host, and multiple NSX Edge instances per datacenter.

Hardware Requirements




Disk Space

NSX Manager

16 GB (24 GB with certain NSX deployment sizes*)

4 (8 with certain NSX deployment sizes*)

60 GB

NSX Controller

4 GB


20 GB

NSX Edge

Compact: 512 MB

Large: 1 GB

Quad Large: 1 GB

X-Large: 8 GB

Compact: 1

Large: 2

Quad Large: 4

X-Large: 6

Compact: 1 disk 500MB

Large: 1 disk 500MB + 1 disk 512MB

Quad-Large: 1 disk 500MB + 1 disk 512MB

X-Large: 1 disk 500MB + 1 disk 2GB

Guest Introspection

1 GB


4 GB

NSX Data Security

512 MB


6 GB per ESXi host

*As a general guideline, if your NSX managed environment contains more than 256 hypervisors, we recommend increasing NSX Manager resources to 8 vCPU and 24 GB of RAM. For specific sizing details contact VMware support.

For information about increasing the memory and vCPU allocation for your virtual appliances, see the following vSphere documentation pages (or the equivalent pages for your version of vSphere):

vSphere 5.5:



vSphere 6.0:



For the latest interoperability information, see the Product Interoperability Matrixes at

These are the recommended versions of VMware products.

VMware vCenter Server 5.5U3

VMware vCenter Server 6.0U2


VMware vCenter Server 6.x is required for cross-vCenter NSX.

Note that for an NSX Manager to participate in a cross-vCenter NSX deployment the following conditions are required:



NSX Manager

6.2 or later

NSX Controller

6.2 or later

vCenter Server

6.0 or later


ESXi 6.0 or later

Host clusters prepared with NSX 6.2 or later VIBs

To manage all NSX Managers in a cross-vCenter NSX deployment from a single vSphere Web Client, you must connect your vCenter Servers in Enhanced Linked Mode. See the VMware vSphere 6 Documentation

To check the compatibility of partner solutions with NSX, see the VMware Compatibility Guide for Networking and Security at

If you added ESXi hosts by name to the vSphere inventory, ensure that forward and reverse name resolution is working. Otherwise, NSX Manager cannot resolve the IP addresses.

Permissions to add and power on virtual machines

Access to the datastore where you store virtual machine files, and the account permissions to copy files to that datastore

Cookies enabled on your Web browser, to access the NSX Manager user interface

From NSX Manager, ensure port 443 is accessible from the ESXi host, the vCenter Server, and the NSX appliances to be deployed. This port is required to download the OVF file on the ESXi host for deployment.

A Web browser that is supported for the version of vSphere Web Client you are using. See the vCenter Server and Host Management documentation for details:

vSphere 5.5:

vSphere 6.0: