Cloud Architecture

AWS Transit Gateway Hub-and-Spoke

Cloud Architecture diagram · made in Skemio

Transit Gateway architecture showing Prod, Dev, and Shared Services VPCs along with On-Premises Data Center connected to a central AWS Transit Gateway router.
Transit Gateway architecture showing Prod, Dev, and Shared Services VPCs along with On-Premises Data Center connected to a central AWS Transit Gateway router.
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What it shows

  • Eliminates N*(N-1)/2 peering links with a single regional hub.
  • Centralizes on-prem Direct Connect and VPN routing in one table.
  • Enforces segmentation via route table associations without IP overlap.

The takeaway

Transit Gateway simplifies enterprise networking by turning mesh chaos into manageable hub-and-spoke routes.

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