VXLAN: Extending Networking to Fit the Cloud

When assembling a cloud infrastructure, you want the flexibility of locating your physical resources anywhere in your datacenter. Networks in a datacenter, on the other hand, may constrain virtual machine (VM) location due to the need for shared Layer 2 connectivity among correspondent virtual machines. VXLAN is an overlay network that overcomes this constraint, allowing you to locate your VMs anywhere in the datacenter without the network being the limiting factor. In this article, I will explain what VXLAN is and how the technology is implemented.