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Category: virtualization

Snabb Switch Update on Software Gone Wild

In 2014, we did a series of podcasts on Snabb Switch (Snabb Switch and OpenStack, Deep Dive), a software-only switch delivering 10-20 Gbps of forwarded bandwidth per x86 core. In the meantime, Snabb community slowly expanded, optimized the switching code, built a number of solutions on top of the packet forwarding core, and even forked a just-in-time Lua compiler to get better performance.

To find out the details, listen to Episode 91 of Software Gone Wild in which Luke Gorrie explained how far the Snabb project has progressed in the last four years.

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Video: Automatic Diagramming with PowerNSX

Here's a trick question: how often do your Visio diagrams match what's really implemented in your network?

Wouldn't it be great to be able to create or modify them on-the-fly based on what's really configured in the network? That's exactly what Anthony Burke demonstrated in the PowerNSX part of PowerShell for Networking Engineers webinar (source code).

You’ll need at least free ipSpace.net subscription to watch the video.

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Meet Me at VMware NSX Deep Dive Event in Zurich

When VMware launched the first version of NSX for vSphere more than four years ago, the NSBU team reached out to me and asked me to create a sponsored webinar describing NSX fundamentals, its architecture, and high-level deployment guidelines.

In the meantime we discussed updating the materials, but nothing ever happened. Time to fix that, this time from a vendor-neutral perspective. We’ll start with a day-long event on April 19th 2018 in Zurich, Switzerland.

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Video: Create an NSX Logical Switch with PowerNSX

After introducing PowerNSX Anthony Burke illustrated how easy it is to use with a Hello, World equivalent: creating a logical switch (VXLAN segment).

You’ll need at least free ipSpace.net subscription to watch the video.

Want to know more about VMware NSX? We’ll run an NSX-focused event and a NSX Deep Dive workshop in Zurich on April 19th 2018, an overview webinar comparing NSX, ACI and EVPN on March 1st, and a deep dive in VMware NSX architecture later in 2018.

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Video: What Is PowerNSX?

One of the beauties of VMware NSX is that it’s fully API-based – you can automate any aspect of it by writing a script (or using any of the network automation tools) that executes a series of well-defined (and well-documented) API calls.

To make that task even easier, VMware released PowerNSX, an open-source library of PowerShell commandlets that abstract the internal details of NSX API and give you an easy-to-use interface (assuming you use PowerShell as your automation tool).

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Cisco ACI, VMware NSX and Programmability

One of my readers sent me a lengthy email describing his NSX-versus-ACI views. He started with [slightly reworded]:

What I want to do is to create customer templates to speed up deployment of application environments, as it takes too long at the moment to set up a new application environment.

That’s what we all want. How you get there is the interesting part.

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Multi-Host Container Networking

Running Linux containers on a single host is relatively easy. Building private multi-tenant networks across multiple hosts immediately creates the usual networking mess.

Fortunately the Socketplane team did a pretty good job; for more details watch the video from Docker Networking Fundamentals webinar or listen to the podcast I did with them a year ago.

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