The LoadMaster system can be deployed as a single unit or in an active/standby dual-unit configuration (High Availability (HA)). HA allows two physical or virtual machines to become one logical device. Only one of these units is active and handling traffic at any one time. One unit is active and the other is a hot standby (passive). This provides redundancy and resiliency, meaning if one LoadMaster goes down for any reason, the hot standby can become active, therefore minimizing any downtime.

The AWS Network Load Balancer is used to achieve HA in AWS when using LoadMasters. The Network Load Balancer does not leverage multiplexing therefore the LoadMaster persistence options can be enabled.

Network Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud. Network Load Balancing ensures that only healthy Amazon EC2 instances receive traffic by detecting unhealthy instances and re-routing traffic across the remaining healthy instances.

Placing the LoadMasters behind the Network Load Balancer enables advanced application delivery functionality.