AWS Fundamentals: AWS Transit Gateway Explained (Hub-and-Spoke Demo)
Автор: RobOps
Загружено: 2026-03-03
Просмотров: 98
Описание:
In this AWS Fundamentals episode, we break down AWS Transit Gateway end-to-end—what it is, when to use it, and how it replaces a growing VPC peering mesh with a clean hub-and-spoke network.
Then we run a hands-on lab: I spin up a 4 VPC network and prove they can’t talk over private IPs, build a Transit Gateway manually in the console, update route tables, and re-test until private connectivity works.
✅ GitHub repo (Terraform + demo code): https://github.com/robertdippolito/aw...
What you’ll learn
What AWS Transit Gateway is (and the key building blocks)
How TGW attachments work (one per VPC)
How TGW route tables and VPC route tables work together
How to verify connectivity with a simple curl test over private IPs
Key tradeoffs: cost, blast radius, and segmentation discipline
Chapters
00:15 What is Transit Gateway?
01:25 Common use cases
02:15 Experiment setup (Terraform)
06:00 Baseline tests (curl fails)
07:35 Create Transit Gateway (console)
12:45 Re-test connectivity (curl succeeds)
15:45 Limitations + takeaway
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