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On Network Virtualization and SDN

Scott Lowe

Is there a difference between network virtualization and Software-Defined Networking (SDN)? So, in a similar fashion to my post on network overlays vs. network virtualization , I thought I’d weigh in with some thoughts. With this definition in hand, let’s compare network virtualization to SDN.

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Technology Short Take #58

Scott Lowe

Before I present this episode’s collection of links, articles, and thoughts on various data center technologies, allow me to first wish all of my readers a very merry and very festive holiday season. Networking. Mustafa Akin has an article on Docker’s new overlay networking functionality. Now, on to the content!

Vmware 60
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CLDS006: Exploring New Xeon E5 Optimizations for 10 Gb Ethernet

Scott Lowe

This is session CLDS006, “Exploring New Intel Xeon Processor E5 Based Platform Optimizations for 10 Gb Ethernet Network Infrastructures.” The session starts with Rodriguez giving a (thankfully) brief overview of Expedient and then getting into the evolution of networking with 10 Gigabit Ethernet (GbE).

Intel 108
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Technology Short Take #25

Scott Lowe

Networking. I think this three-part series on new network models for cloud computing ( part 1 , part 2 , and part 3 ), while almost a year old, is quite good. Erik Smith, notably known for his outstanding posts on storage and FCoE, takes a stab at describing some of the differences between SDN and network virtualization in this post.

Storage 92
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Kubernetes, Kubeadm, and the AWS Cloud Provider

Scott Lowe

networking: dnsDomain: cluster.local podSubnet: 192.168.0.0/16 As I did in the control plane section, I’ll first present a working kubeadm configuration file, then walk through any important points or notes about it: apiVersion: kubeadm.k8s.io/v1beta1 16 serviceSubnet: 10.96.0.0/12 12 scheduler: extraArgs: address: 0.0.0.0.

Cloud 60
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Liveblog: IPv6 in the Cloud - Protocol and Service Overview

Scott Lowe

” The presenter’s name is Alan Halachmi, who is a Senior Manager of Solutions Architecture at AWS. The Global Unicast Address (GUA), is a globally-unique address that allows IPv6-equipped workloads to communicate end-to-end without any network address translation (NAT). Direct Connect Gateway supports IPv6 as well.

IPv6 60
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What’s Free at Linux Academy — March 2019

Linux Academy

By the end of the course, you will have experienced configuring NGINX as a web server, reverse proxy, cache, and load balancer, while also having learned how to compile additional modules, tune for performance, and integrate with third-party tools like Let’s Encrypt.

Linux 80