AWS Transit Gateway
AWS Transit Gateway is a managed service that simplifies network connectivity between Amazon Virtual Private Clouds (VPCs) and on-premises networks. It acts as a central hub for routing traffic across multiple VPCs and VPN connections, eliminating the need for complex peering relationships. This service supports transitive routing, allowing VPCs to communicate with each other through the gateway without direct peering.
Developers should use AWS Transit Gateway when managing large-scale, multi-VPC architectures in AWS, as it reduces operational overhead and improves network scalability. It is particularly useful for enterprises with hybrid cloud setups, enabling secure and efficient connectivity between on-premises data centers and AWS resources. Common use cases include centralized network management, simplified VPN configurations, and supporting hub-and-spoke network topologies.