Azure Load Balancer Traffic Distribution

An Azure Load Balancer provides high availability by distributing incoming traffic across a group of virtual machines. The load balancer receives external or internal traffic through a frontend IP configuration, which serves as the single point of contact for clients. It then forwards this traffic to a backend address pool, which contains the IP addresses of the target VMs. To ensure traffic only goes to healthy VMs, a health probe continuously monitors the status of each machine in the backend pool. Finally, load-balancing rules define exactly how the traffic arriving at the frontend is mapped and sent to the backend VMs.