Efficient Traffic Distributor to your Cloud Resources
Load balancing often refers to the process of efficiently distributing incoming network traffic across a group of backend servers or resources. In cloud computing, Azure Load Balancer plays a pivotal role in ensuring that your application remain available to perform under heavy load.

Azure Load Balancer Overview
Azure Load Balancer operates at layer 4 of the OSI model, making it a highly efficient and effective tool for managing traffic. It serves as single point of contact for client, it distributes inbound flow arriving at load balancers frontend and backend pool. These instances can be Azure VM or VMSS.

Public Load Balancer
A public load balancer offers both inbound and outbound connectivity for the VMs within your virtual network:

• Inbound Traffic: Azure Load Balancer distributes internet traffic to your VMs, ensuring they handle requests efficiently and without overloading any single VM.

• Outbound Traffic: It translates the private IP addresses of your VMs to public IP addresses for any outbound connections originating from your VMs.

Internal (Private) Load Balancer
An internal load balancer, also known as a private load balancer, provides inbound connectivity to VMs in scenarios requiring private network connectivity:

• Hybrid Scenarios: It allows access to the load balancer's frontend from an on-premises network, making it ideal for hybrid cloud architectures.

• Intra-Virtual Network Traffic: Internal load balancers are used to load balance traffic within a virtual network, ensuring even distribution among internal resources.

Key Benefits

• High Availability: By distributing traffic across multiple instances, Azure Load Balancer enhances the availability of your applications.

• Scalability: It supports the scalability of your applications by efficiently managing increased traffic loads.

• Health Monitoring: The integrated health probes ensure that only healthy instances receive traffic, improving reliability.

• Security: It provides robust security features by managing traffic flow and protecting backend resources.

Conclusion Azure Load Balancer is an essential component for any organization looking to optimize the performance and availability of their applications in the cloud. Whether you need to balance internet traffic or manage internal network traffic, Azure Load Balancer offers the flexibility and features necessary to meet your needs.