![]() (This is often the case when using a centralized inspection VPC.) This is true even if the traffic was previously routed through the Transit Gateway by resources owned by other accounts. AWS Transit Gateway: When traffic is routed through a Transit Gateway, the owner of the last resource in the chain before the data is routed to the Direct Connect VIF is charged for Data Transfer out.But, there are exceptions to this rule that apply when using AWS Transit Gateway, or a VPN in a multi-account scenario: Generally speaking, outbound Data Transfer is charged to the account that owns the resource that is sending the traffic. This is charged per GB, and exact pricing is dependent on the AWS Region and AWS Direct Connect location. Port-hour pricing is determined by connection type (Dedicated or Hosted).ĭata Transfer out (DTO) refers to traffic that is sent from an AWS resource to destinations outside AWS. The account that owns the Direct Connect connection (that is, the account that created the connection) is billed for Port-hours. Port-hours are the hours consumed once you have accepted a connection from AWS. In multi-account scenarios, two additional factors (Virtual Interface type, and AWS Organization membership) determine how those costs are allocated. ![]() In any Direct Connect connection, there are two elements that determine the pricing (Port-hours and Data Transfer out (DTO)). ![]() Throughout this post we use the term “resource” as shorthand for the source of the network traffic (such as an EC2 instance or an S3 bucket). This blog walks through five scenarios where Direct Connect is deployed in multi-account environments and discusses how Direct Connect costs are allocated in each. Sharing a Direct Connect link across multiple accounts can be done using either Direct Connect gateway, hosted virtual interfaces, or by connecting it with AWS Transit Gateway. ![]() These connections provide low latency, and high-bandwidth throughput connectivity, with a more consistent network experience than internet-based connections. These accounts may be independent, or part of the same AWS Organizations.ĪWS Direct Connect creates private network connections between a data center, office, or colocation environment and AWS. Many AWS customers use multiple AWS Accounts to make it easier to manage permissions and allocate costs to different groups or departments. When multiple accounts share one AWS Direct Connect interface, customers need to understand how Port-hour and outgoing Data Transfer costs are allocated. ![]()
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