Welcome to vswitchzero, a personal blog by Mike Da Costa with a primary focus on VMware NSX, VMware vSphere, Cisco routing and switching and PC hardware.

About the Author:

I’ve worked for VMware since 2011 in several capacities but am currently a Staff Escalation Engineer supporting NSX in the Global Support Services organization. In this role, I work with some of VMware’s largest NSX customers and provide backline support on a variety of complex operational and design issues.

In a past life, I used to write in-depth product reviews for a couple of PC hardware sites and was always interested in technical writing. A few years ago, I did a rotation on VMware’s Knowledge Management team where I wrote and maintained KB articles for VMware. I also had the opportunity to write a few articles for the VMware Support Insider blog, which rekindled my interest in writing again. I’ve started this blog in the hopes that I can share my knowledge and as an outlet to discuss things that interest me.


  • VMware Certified Implementation Expert Network Virtualization (VCIX-NV)
  • VMware Certified Professional Network Virtualization (VCP-NV)
  • VMware Certified Advanced Professional 5 (VCAP5-DCA)
  • VMware Certified Professional on vSphere 6 (VCP6-DCV)
  • VMware Certified Professional on vSphere 5 (VCP5-DCV)
  • VMware Certified Professional on vSphere 4 (VCP4-DCV)
  • Cisco Certified Network Associate (CCNA R&S)
  • ITIL V3 Foundation Certification
  • ITIL V2 Foundation Certification

Blog Posts at the VMware Support Insider: 

Contact Me:

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Full disclosure: Please note that although I work for VMware, all of the views, comments and opinions on this blog are my own and do not necessarily reflect the views of my employer.