The Open SD-Access Network: Why Now?

 As a number of factors converge to herald a new software defined shift, and with SD access becoming mainstream, software defined networks (SDN) and network function virtualization (NFV) are increasingly working their way into the wider communications discussion. But what does it mean for service providers? Why is now the right time to embrace it? While the terms SDN and NFV are bandied around, the lack of industry education around them poses a potential barrier when trying to li