[AWS] Transit Gateway

AWS Transit Gateway is used to simplify your AWS network architecture (topology) by allowing to have transitive peering between hundreds and thousands of VPC and on-premise data centers.


Transit Gateway is designed to simplify the network connections among VPCs and on-premise networks that are connected through VPC peering or Direct Connect (DX). It is a central hub that acts as a cloud router.

  • A transit gateway implements a hub-and-spoke network topology.
  • It can be used across multiple AWS accounts using Resource Access Manager (RAM).
  • It can use route tables to control access among VPCs.
  • It works with VPN and Direct Connect.
  • It supports IP multicast.
  • A transit gateway scales elastically based on the volume of network traffic. Routing through a transit gateway operates at layer 3, based on their destination IP addresses.

Leave a Comment

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s