Recent Articles

Virtualization Security Podcast: VMware NSX

Filed in Network Virtualization, NSX, Security, VMware, VXLAN by on August 23, 2013 3 Comments
Virtualization Security Podcast: VMware NSX

Podcast appearance on 8/22/13 Topics (in no particular order) VMware NSX Multi hypervisor network virtualization NSX Distributed Firewall NSX Service Composer SDN Top of Rack switches with VXLAN Open vSwitch and OpenFlow Click to listen (mp3): Virtualization Security Round Table Podcast #114: VMware NSX Thank you Edward Haletky for the invite and hosting a great podcast! […]

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What is a Distributed Firewall?

Filed in Network Virtualization, Security by on July 7, 2013 24 Comments
What is a Distributed Firewall?

In the post “What is Network Virtualization?” I described a model where the application’s complete L2-L7 virtual network is decoupled from hardware and moved into a software abstraction layer for the express purpose of automation and business agility. In this post I’ll focus on network security, and describe an imminent firewall form factor enabled by […]

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What is Network Virtualization?

Filed in Network Virtualization by on May 28, 2013 49 Comments
What is Network Virtualization?

Data centers exist for the sole purpose to deploy applications. Applications that automate business processes, serve customers better, enter new markets … you get the idea. It’s all about the Apps. Applications are composed with both Compute and Network resources. It doesn’t make sense to have one without the other; a symbiotic relationship. And for […]

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Reporting from the front lines of network transformation

Filed in Career, Network Virtualization, SDN by on May 14, 2013 9 Comments
Reporting from the front lines of network transformation

It’s been a while So what gives? Well, I’ve been spending most of my time on the front lines: meeting with customers, breaking the ice, laying out the fundamental case for Network Virtualization, face to face, heart to heart. Just a whiteboard, rolled up sleves, and a room full of intelligent IT converstationalists. This is, […]

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On “VMware’s SDN Dilemma: VXLAN or Nicira?”

Filed in FUD, media & analyst, VXLAN by on February 3, 2013 5 Comments
On “VMware’s SDN Dilemma: VXLAN or Nicira?”

Some commentary on a blog published by Networking Computing titled “VMware’s SDN Dilemma: VXLAN or Nicira?” VMware has a technology problem: it’s backing two competing standards for overlay networks: Nicira’s STT and the IETF draft standard VXLAN Nonsense.  As of right now, STT tunneling provides the best performance for network virtualization (wire speed).  If and […]

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Network Virtualization: a next generation modular platform for the data center virtual network

Filed in Fabrics, Featured, NVP, Open vSwitch, OpenFlow, OpenStack, SDN, VMware, VXLAN by on January 28, 2013 42 Comments
Network Virtualization: a next generation modular platform for the data center virtual network

“What will my next generation data center networking platform look like?” “How do I describe this platform to IT managers and begin to wrap my arms around it?” This post attempts to provide a framework for that discussion, in which I’ll argue that the platform for the next generation data center network has already taken […]

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The start of an epic adventure with VMware, advancing the software defined virtual network

Filed in Career, Fabrics, SDN, VMware by on December 4, 2012 25 Comments
The start of an epic adventure with VMware, advancing the software defined virtual network

Today I am excited to write that a page has turned, starting a new chapter in my career, and life.  I’ve concluded an excellent year of service with Dell as “Networking Enterprise Technologist” where we grew DELL networking revenues by 40% Y/Y.  We launched cool networking software products like Dell Fabric Manager (fabric automation) and […]

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A better fabric with VMware NSXi for your network switch

Filed in Fabrics, SDN, VMware by on November 8, 2012 11 Comments
A better fabric with VMware NSXi for your network switch

I’m chewing on a few thoughts today I wanted to jot down here and marinate on for a while.  I’ll use VMware as the straw man for the sake of discussion, simply because — like it or not — they are the household name in virtualization.  Disclaimer: The illustrations here are purely of my own imagination and […]

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Data center network fabric auto deployed in 30 minutes with Dell Fabric Manager

Filed in Dell, Fabrics, Video by on November 1, 2012 7 Comments
Data center network fabric auto deployed in 30 minutes with Dell Fabric Manager

This is a basic video demonstration I put together showing how Dell Fabric Manager 1.0 can be used to auto deploy a Leaf/Spine data center networking fabric based on standard Layer 3 routing protocols. In the video you will see the fabric auto designed, auto configured, auto documented, and auto validated — from scratch — starting with […]

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Video: Basic introduction to Network Virtualization, Nicira, and VMware

Filed in SDN, Video, VMware by on October 25, 2012 1 Comment
Video: Basic introduction to Network Virtualization, Nicira, and VMware

This video is a snippet from a presentation I made which includes a quick and very basic introduction to Network Virtualization; virtual Layer 2; why VMware acquired Nicira; and how this changes the way we can design and deploy data center networks. Enjoy! Cheers, Brad

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