Tag: AWS Transit Gateway Connect

Virtual Routing and Forwarding (VRF) is a traditional network feature which uses isolated logical routing domains (route tables/VRFs) to keep network traffic separated within the same physical infrastructure. Customers ask us how to combine the segmentation provided by AWS Cloud WAN and AWS Transit Gateway with VRF isolation when connecting their on-premises networks to AWS. […]

Introduction Since its launch in 2020, AWS Transit Gateway Connect has provided a native way for you to connect third-party SD-WAN appliances to an AWS Transit Gateway. Connect attachments use Generic Routing Encapsulation (GRE) tunnels and Border Gateway Protocol (BGP) to exchange routes between the Transit Gateway and an appliance. Prior to Transit Gateway Connect, […]

Update: Sep 9, 2024 – Expanded considerations section with clarification on cost dimensions.   Introduction At AWS re:Invent 2021, we launched a public preview of AWS Cloud WAN, a managed service for creating a global network using AWS global network infrastructure. Cloud WAN makes it easy to build and operate global wide area networks (WAN) to […]

Overview You can solve advanced network use-cases encountered by Service Providers extending AWS cloud hosted services to their customers. Doing this often requires advertising thousands of IP prefixes into the AWS cloud, while maintaining separation of unavoidable conflicting IP address space. This can be accomplished by increasing IP prefix advertisement and extending Virtual Routing and […]

Many AWS customers like to use their existing Software Defined Wide Area Network (SD-WAN) devices when connecting their on-premises networks to an AWS Transit Gateway. When doing this, a large number of prefixes must be advertised to and from AWS Transit Gateway. In this post, we show how to use the Transit Gateway Connect feature […]

SD-WANs, or Software Defined Wide Area Networks, have long been used to connect data centers and branch offices over the public internet. Today, those networks must also extend to the cloud. However, traditional SD-WAN infrastructure is not always well suited for this task—significantly increasing complexity and operational burden. At the same time, many AWS customers […]