Advancing the Telco Cloud: Q&A With VMware's Shekar Ayyar
NFV, open source and automation
SS: You mentioned virtual network functions. Obviously, in this century, the communications industry turned over the responsibility for developing interoperable NFV capabilities over to the open source community. In the area of SDN, that's worked pretty well. Conversely, with NFV, there hasn't been any success at all. No interoperability. A disaster. Do you see that changing or will things stay this way for the foreseeable future?
SA: I see these things as different problems. I would not put interoperability and open source and NFV in the same bucket. These are three very separate things. The reason I say that is there's this general conception that open source is free, and that open source means that somebody is going to set up interoperable infrastructure that actually works. None of which is actually true. But having said that, I would also say that interoperability is key and, yes, I do believe that it will happen.
In fact, there is no way it cannot happen. Meaning that people's APIs need to be interoperable -- people need to be able to plug and play components, and people need to move into a mode where they are saying "Look, I can compose an application with infrastructure components from A, B and C vendors or A, B and C operators."
And we can't end up in a situation where one group determines how interoperability happens for, say, telco cloud, and some other community decides it for public cloud, and yet another group defines it for the private cloud – that would be disastrous.
Instead, what we are going to need is a way to build these applications on some common interface definitions that are interchangeable, interoperable and work seamlessly with each other. So, that, I think, is a requirement -- and I believe that that will happen. Because I think there is a time and a place for everybody to be able to contribute to the development of something, but there is also a point at which customers need to know that the interfaces are supported and reliable. So that helps determine the components that will benefit from being open source.
The other thing, of course, is having the right levels of software-defined abstraction. That's critical. The old world where people could say, "This is custom-built hardware and nobody can touch it and you don't get to open the box, only we get to do it" -- that's gone.
And so, complex as it sounds, I actually think a virtualized software-defined architecture is going to become more and more prevalent in all parts of the infrastructure stack. People just need to grow up and understand how to deal with it, and realize it comes with concessions… but that's the way the world is headed.
SS: But in the meantime, they can get everything which they need from VMware, right?
SA: Well, if I have my sales guy hat on, then the answer is "Absolutely yes." But in reality, whether you buy VMware or another vendor, the questions you need to ask are exactly the same: Do they give you the ability to run the applications that you want on their infrastructure? Is it agile enough for you to go and deploy your service today?
Then you have to take into account the path to the future, the evolution. There are lots of companies that can help run applications on VMware on a private cloud. In the public cloud space, most people would point to Amazon as the leader. But if your question is, who is it that is actually starting to transform the infrastructure for telcos from a software-defined standpoint, we would absolutely be one of the strong contenders. Finally, if your question is who can do all three of those, I would say that we're probably best positioned to doing that.
SS: I can't argue with you there. And I also agree that given the complexity of NFV, people have to be very pragmatic. At the same time, I would argue that there is a sense amongst Light Reading's service provider audience that a lot of vendors overpromised on the rate at which they said it would be possible to create interoperable heterogeneous, virtualized networks.
Another term being used a lot in the industry at the moment is "automation." It's become the new term for companies, and marketers, to throw into a conversation when they want to be relevant to service providers. Is it a term that you hear a lot at VMware? And what does it mean to VMware and your customers?
SA: I might modify that slightly, because we also hear the word "orchestration" a lot in the same context, right? The short answer is that people would like to do things more hands free, with less workflow and easier approvals. So, we've seen that for a long time, right? Pretty much since the day the company was founded. And it's largely, I would say, still driven by data center and IT requirements.
So I think that is going to be a continuously evolving scenario, because there is going to be more and more that we have as a tool set to enable greater levels of automation. AI is the latest buzzword -- everybody now wants to do some AI in an attempt to automate better.
But if I step back, is there value in thinking about automation? Absolutely yes. You really want to simplify things so it's easier to stand up infrastructures, to deploy them, to have them operate in a relatively hands-free mode and then to have error correction, to have four (quadrants) and to close the loop in an efficient a way as possible.
Is it going to be completely human free? Absolutely not. It is always going to have some level of somebody observing a NOC and flagging things, or connecting the dots between on-prem or off-prem or maybe between a company's employees and partners, things like that. But I think the idea of automation is very powerful. The toolset that enables automation gets increasingly more valuable and advanced and sophisticated.
So I think automation will improve. It's not going to be a one-size-fits-all or a magic button that you just press and everything gets automated, but I think it is an important concept. I would say that the same thing applies to orchestration, where a term is so loosely used but where there are, in fact, different levels of orchestration -- at some level you actually want to manage the underlying infrastructure, at another level you want to manage the service, and at another you want to manage the billing infrastructure that gets connected.
And sure, it would be nice to have a single solution that just solves everything in one shot, but I believe that is going to be an evolutionary path, that you are going to need to get used to the idea that two or three things need to talk to each other in order to orchestrate something end-to-end.
I think the industry, ourselves included, will be working to make those hand-offs, loops and requirements around components to be simpler and easier, but it's not going to be an instant fix.
— Steve Saunders, Founder, Light Reading