Cloud Architecture Series
Transit Gateway
Simplifying complex hub-and-spoke network topologies by acting as a high-scale cloud router for your entire infrastructure.
The Ingredients
VPC Spokes
Multiple Virtual Private Clouds across different accounts and regions needing interconnection.
On-Prem Links
Direct Connect or Site-to-Site VPN connections linking your physical data centers to the cloud.
Route Tables
Route Tables
Dynamic or static routing rules that define how traffic flows through the central hub.
RAM Sharing
Resource Access Manager allows you to share the TGW across your AWS Organization.
The Evolution of Connectivity
From the “Complexity Trap” of full-mesh peering to the streamlined efficiency of a Hub-and-Spoke model.
Before: Full Mesh
Complex & Fragilen(n-1)/2 connections. Hard to manage at scale.
After: Transit Gateway
Scalable & UnifiedCentralized routing. Single point of control.