Scale Securely with Transit Gateway

AWS Transit Gateway is an under-appreciated service providing secure, scalable, and maintainable connectivity between distributed services and on-premise networks.

Thomas Barrasso
Dec 2, 2019 · 5 min read
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Unifi 16Xg switch by Thomas Jensen on Unsplash

Supporting Scale

Connectivity Options

Transit Gateway vs. VPC Peering — Limitations

VPC Peering does not support transitive peering

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VPC Peering (left) vs. Transit Gateway (right)
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VPC Peering does not support Edge-to-Edge VPN Connections

Internal & Shared Services

Internal Services

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Without Transit Gateway (multiple S2S VPN connections) vs. with Transit Gateway (single connection)

Shared Services

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Accessing shared services using Transit Gateway

The Startup

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