The NSX Edge load balancer enables high-availability service and distributes the network traffic load among multiple servers. It distributes incoming service requests evenly among multiple servers in such a way that the load distribution is transparent to users. Load balancing thus helps in achieving optimal resource utilization, maximizing throughput, minimizing response time, and avoiding overload. NSX Edge provides load balancing up to Layer 7.

You map an external, or public, IP address to a set of internal servers for load balancing. The load balancer accepts TCP, UDP, HTTP, or HTTPS requests on the external IP address and decides which internal server to use. Port 80 is the default port for HTTP and port 443 is the default port for HTTPs.

You must have a working NSX Edge instance before you can load balancing. For information on setting up NSX Edge, see NSX Edge Configuration.

For information on configuring an NSX Edge certificate, see Working with Certificates.