Load balancing evenly distributes the incoming load across a group of dedicated backend resources or servers. Azure Load Balancer operates at layer 4 of the Open Systems Interconnection (OSI) model. Basically, it distributes inbound flows arriving at the load balancer’s front end to the backend pool of servers.
There are two types of load balancing that Microsoft provides. The first one is through Azure Load Balancer, and the second one is through Application Gateway. Let’s first discuss Azure Load Balancer.