AWS networking
Begin with a VPC layout, then explore how applications connect inside AWS and to other networks. Configuration, connectivity diagnosis, and performance measurement are separate tasks in the sections below. For protection and access-control questions, use the security topic alongside these networking references.
Start here: AWS VPC Tutorial for Beginners: Setup and Configuration
Design and connect a network
Start with the VPC introduction when you are planning an application network. The configuration and Direct Connect comparison guides help you identify the next subject; the load-balancing article connects networking to application traffic.
Manage Transit Gateway
Read the route-table guide for routing concepts, the limits guide for a scaling question, and the Network Manager article for a visualization task. Each addresses a different part of managing a network that spans multiple connections.
Troubleshoot and measure connectivity
Choose a troubleshooting guide for the connection that fails, then use mirroring or benchmarking when you need more evidence about traffic and performance. Dashboard troubleshooting covers the visibility tools as well as the network itself.