Networking

Cloud Hub-and-Spoke with Transit Gateway

Network Design diagram · made in Skemio

Hub and spoke network diagram featuring an AWS Transit Gateway at the center connected to on-prem data center, shared services VPC, production VPC, and dev VPC.
Hub and spoke network diagram featuring an AWS Transit Gateway at the center connected to on-prem data center, shared services VPC, production VPC, and dev VPC.
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What it shows

  • Point-to-point VPC peering requires N*(N-1)/2 connections, which scales poorly.
  • Transit Gateway operates as an elastic cloud router consolidating all attachments.
  • Route domain segmentation allows isolating Prod from Dev across all VPCs.

The takeaway

Replace complex point-to-point VPC peering with a centralized Transit Gateway hub.

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