Articles Tagged with vDS

VMware Ends Support for 3rd Party Virtual Switches

This post on reddit appears to intimate that VMware is closing its API for virtual switches to all parties, including its long-standing networking partner Cisco. When I first read the post, I thought the move was a retrograde step by VMware and another veiled dig at its ecosystem. The post links to an official blog post on the VMware site stating that moving forward, VMware “will have a single virtual switch strategy that focuses on two sets of native virtual switch offerings – VMware vSphere® Standard Switch and vSphere Distributed Switch™ for VMware vSphere, and the Open virtual switch (OVS).”

From a numbers perspective, this makes sense, as about 99% of its customers are already using this single model of standard virtual switch and/or distributed virtual switch. It does fall into what research is stating. We at TVP Strategy applaud any attempt at reducing complexity, but we do find the fact that this announcement was hidden away in a blog post obtuse in the extreme. 

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Distributed Virtual Switch Failures: Failing-Safe

In my virtual environment recently, I experienced two major failures. The first was with VMware vNetwork Distributed Switch and the second was related to the use of a VMware vShield. Both led to catastrophic failures, that could have easily been avoided if these two subsystems failed-safe instead of failing-closed. VMware vSphere is all about availability, but when critical systems fail like these, not even VMware HA can assist in recovery. You have to fix the problems yourself and usually by hand. Now after, the problem has been solved, and should not recur again, I began to wonder how I missed this and this led me to the total lack of information on how these subsystems actually work. So without further todo, here is how they work and what I consider to be the definition for fail-safe.

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