The AWS Transit Gateway is a network transit hub that you can use to interconnect your virtual private clouds (VPCs) and on-premises networks. It allows you to simplify your network architecture and centralize your network connectivity.
The AWS Transit Gateway is a highly scalable and fully managed service provided by Amazon Web Services (AWS) that enables you to connect multiple VPCs and on-premises networks together in a single, centralized hub. It acts as a transit point for network traffic between the various VPCs and on-premises networks, providing a logical hub-and-spoke model.
The AWS Transit Gateway also provides advanced features such as routing, security, and network isolation. You can configure routing policies to control how traffic is routed between the various networks, and you can use security groups and network ACLs to control traffic flow.
The AWS Transit Gateway works by providing a centralized hub for network traffic between VPCs and on-premises networks. Each VPC or on-premises network that is connected to the AWS Transit Gateway is represented as a separate attachment. The attachments can be either static or dynamic. Static attachments are permanent, whereas dynamic attachments are created on demand.
The AWS Transit Gateway also provides a set of routing tables that you can use to control how traffic is routed between the various networks. You can configure the routing tables to route traffic based on various criteria, such as IP address ranges, application protocols, or network interfaces.
The AWS Transit Gateway also provides advanced security features such as security groups and network ACLs. You can use security groups to control traffic flow between different VPCs and on-premises networks, while network ACLs enable you to control traffic at the subnet level.
The AWS Transit Gateway provides several benefits, including:
The AWS Transit Gateway is a powerful tool that enables you to simplify your network architecture and centralize your network connectivity. By providing a centralized hub for network traffic between VPCs and on-premises networks, it offers a highly scalable and flexible solution that can support a wide range of use cases. Whether you are looking to interconnect multiple VPCs within a region, or multiple regions across the globe, the AWS Transit Gateway can help you achieve your goals.