NSX Manager is an appliance and it can be downloaded online from VMware's website. The download is available in the OVA format and can be then deployed in your environment. Before discussing the deployment of NSX, let's go over some considerations for deploying NSX.
VMware recommends that NSX Manager be deployed on a separate management cluster that will be separate from the compute cluster where your software-defined networks will be deployed. This decouples the management plane from the compute plane and allows for higher availability of your management systems. The management cluster will also run the vCenter server and NSX controllers are deployed on the compute cluster. The controller cluster virtual machines should be deployed on the management network and should be able to reach the vCenter server and hypervisors. It is also...