I was two weeks ago in Dallas, speaking at SDN NFV USA and the Telco Cloud forum.
While I was busy avoiding bodily fluids with everyone at the show, I got the chance to keynote a session (slides here) with Krish Prabhu, CTO of AT&T labs.
Krish explains that the main driver for the creation and implementation of Domain 2.0 is the fact that the company CAPEX while staggering at $20 billion per year is not likely to significantly increase, while traffic (used here as a proxy for costs) will increase at a minimum of 50% compounded annual growth rate for the foreseeable future.
Krish, then to lament:
"Google is making all the money, we are making all the investment, we have no choice but to squeeze our vendors and re architect the network."Enter SDN / NFV.
Really? These are the only choices? I am a little troubled by the conclusions here. My understanding is that Google, Facebook, Netflix, in short the OTT providers have usually looked at creating services and value for their subscribers and then, when faced with unique success had to invent new technologies to meet their growth challenges.
Most of the rhetoric surrounding operators' reasons for exploring SDN NFV nowadays seem to be about cost reduction. It is extremely difficult to get an operator to articulate what type of new service they would launch if their network was fully virtualized and software-defined today. You usually get the salad of existing network functions with the newly adorned "v". vBRAS, vFirewall, vDPI, vCPE, vEPC...
While I would expect these network functions to lend themselves to virtualization, they do not create new services or necessarily more value. A cheaper way to create, deploy, manage a firewall is not a new service.
The problem seems to be that our industry is again tremendously technology-driven, rather than customer-driven. Where are the marketers, the service managers who will invent, for instance, real-time voice translation services by virtualizing voice processing, translation functions in the phone and at the edge? There are hundred of new services to be invented, I am sure SDN NFV will help realize them. I bet Google is closer to enable this use case than most mobile network operators. That is a problem, because operators can still provide value if they innovate, but innovation must come first from services, not technology. We should focus on what first, how after.
End of the rant, more techno posts soon. If you like this, don't forget to buy the report.