In the previous blog we saw how Linux supports virtual networking using bridges. VMware vSphere is the most popular hypervisor brand in the world and it is natural that it also supports virtual networking. In fact vSphere supports some very advanced networking functions, that are not available in most of the other hypervisors.
Let me introduce the key elements of VMware virtual networking. After reading this blog, I recommend that you read the official guide about virtual networking.
Before I share my goals for the first half of 2013, here is an assessment of my 2012 goals. Around mid 2012, I had set out with some goals to learn a JavaScript, CSS and HTML5 as part of UTM URL Generator project. You can check out those goals here. Around November I reworked some of the milestones of that project and completed most of it recently. The main intention of the UTM URL Generator project was to learn the basics of few technologies.
In the previous post we looked at the fundamental building blocks of physical and virtual networks. Now let us look at two key concepts in physical and virtual networks. They are Ports and VLAN.
In order understand Virtual Networking let us start with the simplest network that many of us operate every day – our home network. The picture below captures what a typical home network looks like. I am sure most of us use wireless rather than wired networks at home but the underlying concepts are very much alike.
Upcoming technologies like OpenFlow and SDN are altering the networking landscape very quickly. The underlying drivers are Cloud Computing and Virtualization. Servers, Storage and Networking make up the trinity for effective Cloud computing strategy. Servers and Storage Virtualization has helped drive the adoption of flexible cloud services already. Now it is time for Network Virtualization.