APIs and messaging protocols, including some that are standards, can let users build software-defined networks today. The key issue, though, is that not everyone implements the same ones or implements them the same way. Will OpenFlow get us all on the same path to SDN nirvana?
SDN - News, Features, and Slideshows
Although OpenFlow is stirring up all of the excitement around <a href="http://www.networkworld.com/news/2011/101911-openflow-summit-252150.html">software defined networking (SDN)</a>, you can program a network with standard tools that have been around a while. Here are a few examples.