Load Balancer – Azure’s traffic distribution service.

Azure Load Balancer is a high-performance, ultra-low-latency Layer 4 (TCP/UDP) load balancing service. It provides both public and internal load balancing configurations, supporting inbound and outbound scenarios. The service features automatic reconfiguration when scaling instances, health probes for service monitoring, and support for zone redundancy. Azure Load Balancer includes TCP reset on idle, multiple frontend IP configurations, and floating IP support for high availability. It offers standard and basic SKUs with different capabilities, supports IPv6, and provides detailed metrics through Azure Monitor. The service integrates with Virtual Machine Scale Sets for automatic backend pool management and supports both TCP and UDP protocols with port forwarding capabilities.