A tenant is a logical grouping of configuration. An administrator may belong to one or multiple tenants, but may only view and edit one tenant at a time. Each tenant has its own isolated control plane configuration.
Each tenant may or may not have its own isolated data plane. This will depend on the global configuration of the NSX Advanced Load Balancer deployment.
Tenants may be deployed within a Provider Context or a Tenant Context:
Provider Context mode: Service Engine groups are shared across tenants
Tenant Context mode: Service Engine groups are exclusive to each tenant
In NSX Advanced Load Balancer, Virtual Routing Forwarding (VRF) contexts can be created to isolate traffic within a system.