Amazon Virtual Private Cloud Connectivity Options
AWS Whitepaper

AWS Direct Connect

AWS Direct Connect makes it easy to establish a dedicated connection from an on-premises network to Amazon VPC. Using AWS Direct Connect, you can establish private connectivity between AWS and your data center, office, or collocated environment. This private connection can reduce network costs, increase bandwidth throughput, and provide a more consistent network experience than internet-based connections.

AWS Direct Connect lets you establish 1 Gbps or 10 Gbps dedicated network connections (or multiple connections) between AWS networks and one of the AWS Direct Connect locations. It uses industry-standard VLANs to access Amazon Elastic Compute Cloud (Amazon EC2) instances running within an Amazon VPC using private IP addresses. You can choose from an ecosystem of WAN service providers for integrating your AWS Direct Connect endpoint in an AWS Direct Connect location with your remote networks. The following figure illustrates this pattern. You can also work with your provider to create sub-1G connection or use link aggregation group (LAG) to aggregate multiple 1 gigabit or 10 gigabit connections at a single AWS Direct Connect endpoint, allowing you to treat them as a single, managed connection.

Figure: AWS Direct Connect

AWS Direct Connect allows you to connect your AWS Direct Connect connection to one or more VPCs in your account that are located in the same or different regions. You can use Direct Connect gateway to achieve this. A Direct Connect gateway is a globally available resource. You can create the Direct Connect gateway in any public region and access it from all other public regions.

This feature also allows you to connect to any of the participating VPCs from any Direct Connect location, further reducing your costs for using AWS services on a cross-region basis. The following figure illustrates this pattern.

Figure: AWS Direct Connect Gateway

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