VPC = Virtual Private Cloud
TGW = Transit Gateway
VPC Peering → A direct connection between two VPCs.
Transit Gateway (TGW) → A central hub for connectivity.
VPC Peering is like a direct private road connecting two houses (VPCs) for communication.
Transit Gateway is like a central highway interchange (hub) that connects many houses (VPCs) and roads (networks) to each other in a scalable and managed way.
Simple line:
- VPC → Your private cloud network (where workloads live).
- Transit Gateway → A hub that connects multiple networks (VPC ↔ VPC ↔ On-prem).
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