10 Software-Defined Networking Architectures, September 27, 2013 Software-defined networking is a hot topic for debate in the industry. Experts argue about the best way to implement it, the ways it might affect network engineers and administrators, and how it might disrupt the traditional power structure in the networking industry. While there are a lot of opinions about this emerging technology, there's one inescapable fact: SDN has brought new attention and innovation to the network. To get a view into the various approaches to SDN, we asked 10 vendors to supply images and short descriptions of their SDN technology. While there's some marketing fluff in some of the write-ups, the images provide a window into the wide range of technical approaches to SDN.
Midokura's MidoNet is a distributed, decentralized network virtualization product that is purpose-built for Infrastructure-as-a-Service (IaaS) clouds, such as OpenStack and CloudStack. MidoNet allows end users to build complex and arbitrary network topologies in their cloud environments without requiring more than IP connectivity from the physical network. MidoNet offers a virtual device approach, which includes devices such as switches, routers, firewalls, and load balancers and the ability to connect these devices in an arbitrary way. L2 and L3 layer isolation is also provided for the security-minded user. MidoNet design is distributed and decentralized, so it can scale horizontally as more capacity is needed.