Load balancing has always been one of the most important and straightforward methods for scaling up infrastructure.
The load balancer mainly distributes the traffic across a set of servers to enhance the responsiveness and the availability of VMs.
In a nutshell, the load balancer receives the traffic from the client and redistributes it across a set of servers. As a result, it ensures the following:
- High availability of the service for which you use Azure Load Balancer, as the client connects only to an online server that has no issues
- Flexibility of adding or removing backend servers behind Azure Load Balancer
Azure Load Balancer is not different. It is a layer 4 load balancer that distributes the traffic across either VMs or cloud services; and, if one of the VMs becomes unavailable, the traffic gets redirected to another VM.
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