Networking & Content Delivery

Category: Amazon VPC

Centralizing outbound Internet traffic for dual stack IPv4 and IPv6 VPCs

Organizations have been adopting IPv6 in their IPv4 environments to solve IP address exhaustion or meet compliance requirements. Since IPv6 isn’t backward compatible with IPv4, several mechanisms can facilitate communication between hosts that support one or both protocols. One common way is by using dual stack deployments. For architectures where dual stack deployments aren’t the […]

VPC Routing Enhancements and GWLB Deployment Patterns

At re:Invent 2020, AWS introduced  Gateway Load Balancer (GWLB), an AWS service that helps you deploy, scale, and manage third-party virtual network appliances, such as firewalls, intrusion detection and prevention systems, and others. GWLB is a type of load balancer under the Elastic Load Balancing (ELB) family. Other load balancers within the ELB family include […]

AWS Network Optimization Tips

When thinking about architecture, it’s very common to come across scenarios where there is no right or wrong answer – the best answer is “it depends”. You must carefully consider the tradeoffs between cost, performance, reliability, and operational efficiency before coming to a decision. A little planning ahead of time can help you avoid numerous […]

Amazon VPC IP Address Manager Best Practices

by Alexandra Huides, Ankit Chadha, Michelle Bittencourt Perez, and Monica Fernandez Delgado | on | in Amazon VPC | Permalink |  Share

Internet Protocol (IP) address management is an essential network planning and management component, and creating a scalable addressing scheme allows your AWS and hybrid network to expand, accommodating the needs of your workloads. Careful consideration for how your IP address space is allocated minimizes the risk of overlapping Classless Inter-Domain Routing (CIDR) blocks, and of […]

Visualize and diagnose network reachability across AWS accounts using Reachability Analyzer

It is common to encounter network designs on AWS with resources that belong to multiple AWS accounts. For example, you may have several AWS accounts with Virtual Private Clouds (VPCs) in those accounts connected to an AWS Transit Gateway in a central networking account. You may need to determine or diagnose network reachability between AWS […]

Top 4 Networking considerations for Mergers, Acquisitions, and Divestitures

This blog is co-authored by Parrish Gamarra, Principal Network Architect, Johnson & Johnson Introduction Mergers, Acquisitions (M&A), and divestitures are part of many enterprises’ journeys, driven by evolving business goals like expanding into new geographies or to spin off a line of business. Refer to this post for checking your general readiness for M&A with […]

Analyzing stale security group rules using serverless architecture

Security is a top priority for AWS and customers running workloads in AWS. The previous post Top 10 security items to improve in your AWS account, covered the top security items that AWS customers should pay special attention to if they want to improve their security posture. High on the list is the need to […]

Architect dual stack Amazon VPC with multiple IPv6 CIDR blocks

Introduction With the increasing adoption of IPv6 on AWS, the need to create an easy-to-manage, hierarchical, and scalable IP addressing plan for Amazon Virtual Private Clouds (Amazon VPCs) becomes critical for customers. With IPv4, adding more CIDR blocks to a VPC was driven mainly by the need to increase the address space within a VPC. […]

Designing hyperscale Amazon VPC networks

Introduction Amazon Web Services (AWS) customers are continuously increasing the number of applications and workloads they run on AWS, driven by accelerated cloud adoption and environment expansion. An environment can be considered “Hyperscale” once it supports thousands of application endpoints and tens or hundreds of gigabits of traffic per second. Hyperscale environments on AWS favor […]

Introducing Amazon VPC Flow Logs to Kinesis Data Firehose

Amazon Virtual Private Cloud (Amazon VPC) Flow Logs helps you understand network traffic patterns on AWS by providing network telemetry data about the IP traffic flowing to and from ENIs in your VPC. It lets you perform numerous analytics tasks, such as diagnosing overly restrictive security group rules, monitoring traffic that is reaching an instance, […]