Category: Advanced (300)

In this post, we’ll discuss the considerations, recommendations, and approach for migrating AWS accounts between AWS Organizations from a networking perspective. We’ll explain the behavior of AWS networking resources when AWS accounts are moved between Organizations. We’ll also analyze the behavior from different viewpoints including service availability, management and governance, as well as commercial and operations. […]

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 […]

When I meet with customers and discuss AWS Gateway Load Balancer (GWLB), I often get asked for suggestions regarding integrating it with their existing Linux appliances. GWLB utilizes GENEVE encapsulation with some important custom metadata, which doesn’t natively work with either Linux or Linux’s GENEVE module (which is designed only for Ethernet (Layer 2) packets, […]

Introduction Multicast is a popular IP-based communication mechanism that is actively employed in many industry verticals, including finance, media, telco, transportation, and others. This post describes how to enable multicast in container environments orchestrated by Amazon Elastic Container Service (ECS). Although Amazon ECS is a fully managed container orchestration service, some additional steps must be […]

Introduction As your distributed application teams operate network infrastructure, it can be challenging for central security, networking, or cloud operations teams to determine whether the correct network controls are in place. Network controls, such as firewall rules, NAT Gateways, network access control lists (ACL’s), security groups, and network segmentation, serve as a critical first line […]

Introduction There are several factors that contribute towards your overall costs incurred in AWS cloud. When it comes to networking, many customers ask about data transfer charges. You pay a Data Transfer charge when you send data out from AWS to Internet, between AWS Regions, or between Availability Zones (AZ). Today, there are multiple ways […]

Introduction Regardless of size or industry, it’s common for organizations to have security and compliance rules for securing internet-bound traffic. AWS customers need control over, and the ability to filter, requests that are initiated by resources in private and public subnets and sent to the internet. This is also known as “egress filtering.” In AWS, […]

Introduction The Domain Name System (DNS) is one of the most critical components for almost any network as every service relies on a functional DNS service. Amazon Route 53 Resolver (sometimes referred to as “AmazonProvidedDNS” or the “.2/+2 resolver”) provides a highly available and scalable DNS service that customers have come to rely upon for their recursive DNS […]

Introduction In this article, I will walk you through the steps to configure Amazon API Gateway in combination with AWS Global Accelerator to present Internet-facing API via static IP addresses to end users. This design addresses the need for static IP safelisting and also provides additional performance benefits to end users by sending user’s traffic […]

Introduction Organizations are moving from traditional monolithic data center networks to an agile application programming interface (API) driven cloud network. As a result, customers are looking for an efficient and reliable way to make changes to their cloud network infrastructure. They want to adopt a pipeline driven approach to make any network changes following DevOps […]