Install the third NSX Manager appliance by repeating steps 2 through 8 above. The same values are used, except for the hostname and IP address. In this example, the third NSX Manager hostname is nsxmgr03.dell.lab , and the IP address is 172.18.11.84/24 .
It may take approximately 10 to 15 minutes for deployment, cluster formation, and synchronization to finish. When complete, the NSX Appliances screen appears as shown in the following figure.

Ensure that the cluster status is STABLE as shown in the upper left part of the screen.