AWS › AWS Direct Connect & Hybrid Connectivity
How does AWS Transit Gateway simplify complex hybrid network architectures involving many VPCs and on premises connections?
AdvancedAnswer
AWS Transit Gateway acts as a central network hub that connects thousands of VPCs, VPN connections, and Direct Connect connections through a single, simplified point of control, replacing what would otherwise require a complex mesh of individual peering connections between every pair of networks, and it also supports centralized route management, making it significantly easier to manage network architecture as an organization's number of VPCs and hybrid connections grows over time.
aws ec2 create-transit-gateway --description 'Central hub for all VPC and hybrid connections'Real-world example A large enterprise with over fifty VPCs across multiple business units connects all of them, along with its Direct Connect based on premises network, to a single Transit Gateway, replacing what would have been an unmanageable mesh of hundreds of individual VPC peering connections.