Currently I’m preparing for ONF Certified Network Associate exam. One of the impotant topic for this exam is to understand OpenFlow protocol. OpenFlow is the defacto standard to interface OpenFlow controller & OpenFlow enabled network elements.
However, this OpenFlow protocol had undergone number of changes since its inception. While the differences b/w each version and the features introduced / depreciated in each version can be readily available by reading the OpenFlow specificiations, it would be well understood / recollected, if presented in a pictorial format.
Hence in this post, I’m attaching 2 pics that depicts the comparison of different OpenFlow versions along with their timeline.