NSX Advanced Load Balancer Controller clusters can include either one (standalone mode) or three Controller nodes in a cluster.In order for a three-node cluster to function, a quorum (majority) of the nodes must be present. It means at least two nodes must be up.
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Azure Cluster IP Configuration
NSX Advanced Load Balancer Controller Controller cluster IP configuration is integrated into the configuration workflow and no longer requires ControlScripts.
Configure MSI based authentication for the Controller virtual machine.
Note:The recommeded method for credential is MSI-based authentication, the other authentication methods are also supported.
Configure the Controller cluster IP address. To add the cluster IP address within the web interface, navigate to Administration > Controller > Edit. Add the new address to the Controller cluster IP address field. This change takes effect immediately upon saving.
The configured cluster IP adderess must belong to the same VNet as the Controller nodes.