Networking & Content Delivery

Category: AWS Transit Gateway

Using connection tracking improvements to increase network performance

Connection tracking (conntrack) is a networking concept where a networking device, like a firewall, router, or NAT device, needs to track and maintain information about the state of IP traffic going through it. The AWS Nitro System that underlies AWS networking does connection tracking for some types of network traffic to implement the stateful nature […]

Using AWS Transit Gateway Flow Logs to chargeback data processing costs in a multi-account environment

Many AWS customers use consolidated billing, and often need to allocate costs across their internal business units or accounts. This can be challenging when dealing with services that are shared by all accounts. For general chargebacks, some customers use cost allocation tags for this purpose. However, at the time of writing this post, there is […]

How to interconnect AWS Cloud WAN core networks

Update: Sep 9, 2024 – Expanded considerations section with clarification on cost dimensions. Introduction AWS Cloud WAN is a managed wide-area networking (WAN) service for building, managing, and monitoring a unified global network, as well as connecting resources running across your cloud and on-premises environments. With AWS Cloud WAN, you have a central place to […]

How ZS used Network Orchestration for AWS Transit Gateway to optimize costs and scale up

This is a guest post co-written with Roshan Raj, Cloud Network Specialist at ZS Associates In this blog post, we will highlight challenges faced by ZS to keep cost under control while managing a large, complex global network infrastructure which spans across multiple AWS Regions. We will show how ZS used Network Orchestration for AWS […]

Using AWS Network Manager Events to manage and monitor your global network

AWS Network Manager is a great tool that lets you monitor changes in your network and create automations. In this post, we cover how to leverage events in Network Manager to get notified about network changes and how to use AWS Serverless technologies to enrich the information provided by these events. Let’s start with a simple question: What is Network […]

Understand your network traffic trends using AWS Transit Gateway Flow Logs

AWS Transit Gateway is a network transit hub that enables you to connect thousands of Amazon Virtual Private Clouds (Amazon VPCs) and your on-premises networks using a single gateway. This simplifies your network connection and puts an end to complex peering relationships. AWS Transit Gateway Flow Logs enables you to export detailed telemetry information, such as source/destination […]

Hybrid cloud architectures using AWS Direct Connect gateway

In April 2023, AWS increased several AWS Direct Connect quota limits, as you have asked for increased scale and capacity for hybrid cloud connectivity. With the new limits, you can now create up to four Transit Virtual interfaces (VIFs) per AWS Direct Connect dedicated connection. The maximum number of prefixes has increased to 200 for […]

Achieve optimal routing with AWS Cloud WAN for multi-Region networks

In multi-Region AWS Cloud WAN deployments, customers deploy centralized architectures for use cases such as traffic inspection, hybrid connectivity (using AWS Transit Gateways and AWS Direct Connect), and internet egress. For internet egress, you may use a single egress VPC per AWS Region or per geography (collection of AWS Regions), for example, Americas (AMER GEO), […]

Using NAT Gateways with multiple-Amazon VPCs at scale

Introduction Amazon Virtual Private Cloud (Amazon VPC) use Network Address Translation (NAT) so resources in private subnets can communicate with resources in the internet, other VPCs, on-premises networks, or even the same VPC using the NAT Gateway’s IP address. Amazon VPC NAT Gateway is managed by AWS and addresses this need while providing redundancy, scalability, […]

Deploying hybrid networks using AWS Cloud WAN and AWS Direct Connect

AWS Cloud WAN is a managed wide-area networking (WAN) service for building, managing, and monitoring a unified global network, as well as connecting resources running across your cloud and on-premises environments. We work with many customers to build hybrid networks that connect their on-premises environments to Cloud WAN using AWS Direct Connect. This extends their […]