Last week, Google made a huge announcement in the world of software-defined networking. They had in fact built their own OpenFlow-based SDN (including their own custom networking gear) and were using it to manage all of their production WAN traffic. Google’s SDN enabled it to implement a global bandwidth management and traffic engineering system, saving money on bandwidth and hardware.
For a company very secretive of its infrastructure, Google took a major step in support of the growing OpenFlow and SDN ecosystems. They immediately dispelled any myths and concerns about the maturity of SDN and made it clear that real, reliable software-defined networks were managing production traffic in one of the most complex infrastructure environments in the world. This is a huge boost to the SDN ecosystem. Continue reading