Ramesh Nagarajan

Service Management in the Brave, New, and Virtualized World

Aug 15, 2014 by Ramesh Nagarajan

Ramesh NagarajanThese are exciting times in the world of Network Functions Virtualization (NFV). NFV fever has truly gripped the market and NFV-washing is fully underway. However, there is real progress underneath and beyond the hype.  Operators are beginning to seriously contemplate commercial deployments of NFV, and are devoting considerable effort to the important topic of NFV service management. Network operations teams at the service providers have been asking the difficult questions of how to manage all of the virtual stuff compared to the physical, custom built appliances they have operated in the past.

Network Function Virtualization (NFV): the Road less Travelled - Part 2

Aug 8, 2013 by Ramesh Nagarajan

Ramesh Nagarajan As I noted in Part 1 of this series, the communications industry is abuzz with vendor and service provider interest in the NFV space. With the potential to completely transform the way communication networks are designed, built and operated, NFV promises a number of benefits such as reduced capital (CAPEX), reduced operational (OPEX) expenditures, reduced time for service turn up and a shift to a “fail fast” model for new services. 

In part 1, we highlighted some of the key industry initiatives, such as the ETSI NFV ISG, that are driving the adoption of NFV, but emphasized that there are two further areas where innovation must take place in order for NFV to be successful.  We noted the areas that have not received as much attention thus far: Firstly, the business models for virtual network functions (VNFs) and secondly, how VNFs are authored for the cloud. Part 1 examined the NFV business models. In this part, we look at VNF authoring for the cloud.

Network Function Virtualization (NFV): the Road Less Travelled - Part 1

Jul 25, 2013 by Ramesh Nagarajan

The communications industry is abuzz with vendor and service provider activities in the NFV space. NFV has the potential to completely transform the way communication networks are designed, built and operated. NFV implements network functions as software entities and takes advantage of cloud technologies such as virtualization and cloud operation tools and techniques.  As such, NFV promises a number of benefits such as CAPEX and OPEX savings, reduced time for service turn up and a shift to a “fail fast” model for new services.  Perhaps even more notably, NFV sets the stage for further innovation in the communications industry by lowering the barrier for entry for newer software-only vendors.