Introduction to VMware NSX Manager

VMware NSX is another step towards VMware’s Software Defined Data Center (SDDC) architecture and is not extending virtualization technologies across the entire physical data center infrastructure. VMware NSX, the network virtualization platform, is a key product in the SDDC architecture. Like Server virtualization, where you can programmatically creates, snapshots, deletes and restores software-based virtual machines (VMs), NSX network virtualization programmatically creates, snapshots, deletes, and restores software-based virtual networks.



The NSX manager is the management plane virtual appliance that helps configure logical switches and connect virtual machines to these logical switches. The NSX Manager provides the graphical user interface (GUI) and the REST APIs for creating, configuring, and monitoring NSX components, such as controllers, logical switches, and edge services gateways. The NSX Manager provides a centralized network management component of NSX.

NSX Manager is installed as a virtual appliance on any ESX host in your vCenter environment. The NSX Manager is tightly connected to the vCenter server (1:1 relationship) managing the compute infrastructure. NSX Manager registers with vCenter and injects a plugin into the vSphere Web Client for consumption within the Web management platform. NSX Manager is responsible for the deployment of the all the NSX Components, ESX host preparations and configuration of services like NSX Edge Services Gateways and associated network services (Load Balancing, Firewalling, NAT, etc).


NSX Manager ensures security of the control plane communication of the NSX architecture by creating selfsigned certificates for the nodes of the controller cluster and for each ESXi hosts that should be allowed to join the NSX domain. The NSX Manager installs those certificates to the ESXi hosts and the NSX Controller(s) over a secure channel; after that, mutual authentication of NSX entities occurs by verifying the certificates. Once this mutual authentication is completed, control plane communication is encrypted.

For resiliency of NSX Manager, it is recommended to leverage VMware HA and DRS functionality to ensure that the NSX Manager can be dynamically moved to another ESXi hosts in case of host failures.

On-demand or scheduling of backup of NSX NSX Manager data, including system configuration, events and audit log tables can be performed from the NSX Manager GUI and saved to a remote location that must be accessible by the NSX Manager.

Note : Restoring a backup is only possible on a freshly deployed NSX Manager appliance that can access one of the previously backed up instances.

This concludes the introduction to VMWare NSX Manager. In next post I will be covering the deployment of NSX Manager. I hope this is informative for you. Thanks for reading !!!. Be social and share it in social media, if you feel worth sharing it.


  1. Andy Kennedy says:

    Congratulations on some great work here Prashant. A lot of time and effort has gone into creating these guides and am sure they will be a fantastic resource for the community.

    Nice work!

    Andy Kennedy
    Networking & Security, EMEA

    1. Prashant Rangi says:

      Thanks Andy for appreciating the work

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