NFV can’t be a clean break from the past; it’s got to coexist with what’s already out there in the network. And there are some good technologies that bridge that gap.
For example, you’ve got a large installed base of routers. They’re not the latest generation of white-box type of equipment, but these are traditional devices. They are exposing APIs and protocols that allow them to be programmed in the spirit of SDN. So services can be stitched together, created and auto-provisioned from a combination of legacy elements, particularly an installed base of routers, and the new stuff that’s coming along.
There are no technical barriers to this kind of hybrid coexistence. And really, it’s a fundamental requirement. Technologies are certainly available to enable us to do that.
(Source: TelecomTV)
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