https://theithollow.com/tags/vxlan/ Recent content in Vxlan on The IT Hollow Hugo en-us Mon, 03 Sep 2012 11:00:48 +0000 https://theithollow.com/2012/09/03/vxlans-a-good-idea/ Mon, 03 Sep 2012 11:00:48 +0000 https://theithollow.com/2012/09/03/vxlans-a-good-idea/ <p>After attending VMworld this year, I decided I needed to try to understand VXLANs a little better.  Based off of the basic concept that it stretches a layer two broadcast domain over layer three networks, I was worried that I knew how this was accomplished.</p> <h2 id="what-is-vxlan">What is VXLAN?</h2> <p>VXLAN stands for Virtual Extensible LAN and is a fairly new method of making the datacenter network elastic.  Suppose for example that you want to be able to move your virtual machines from your own server room to a co-location and then to a public cloud depending on what the load was on your environment.  In order to do this without causing downtime, you&rsquo;d need a way for your layer two ethernet frames to continue getting from your clients to your servers even, if a router is in that path.</p>