SDN and NFV have gone mainstream. There is a recognition that the status quo cannot stand. Both the Bell-Head OSS centric model, and the Net-Head distributed control model are artifacts of different times, like medieval castles, and horse cavalry.
I recently attended the Layer 123’s third annual SDN and Open Flow World Congress. This year it was held in Dusseldorf Germany. Once again, attendance doubled year over year.
SDN and NFV are getting love from players that were either on the sidelines, or who were critics, post-justifying past decisions. The atmosphere was electric. It was tough to find a quiet area for a conversation. A gold rush has started, with interest moving well beyond the early-adopters. There is a new majority declaring that SDN and NFV define a new era in networking and network services.