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Simplifying Complex Networks with AWS Transit Gateway

Alice the Architect
AWS in Plain English

Network topologies can get unwieldy as organizations scale, creating challenges around managing and securing connectivity between multiple VPCs and on-premises networks. Enter AWS Transit Gateway — a powerful solution designed to simplify these connections through a centralized hub, enabling streamlined network architecture, flexible connectivity options, and easier management.

What is AWS Transit Gateway?

AWS Transit Gateway acts as a regional hub that interconnects VPCs and on-premises networks in a hub-and-spoke (star) topology. Instead of creating complex peer-to-peer connections between resources, you can route all traffic through a central Transit Gateway. This gateway supports thousands of VPCs, making it ideal for organizations looking to build scalable network architectures without exponential complexity.

Key Features of AWS Transit Gateway

  1. Transitive Peering: AWS Transit Gateway enables transitive peering between VPCs and on-premises networks. This approach reduces the need for direct connections between each VPC or on-premises network, simplifying the overall structure.
  2. Cross-Region and Cross-Account Sharing: Transit Gateway is a regional service, but it supports cross-region peering to extend…

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