Finding Next Service Hop with NFV-Routers

ISPs have started to replace their dedicated appliances with virtual Service Functions (vSF) through which traffic has to be steered. Most of existing work has proposed to rely on the Software Defined Networking paradigm to route traffic into the appropriate set of functions. These solutions tend to be poorly scalable and need to deploy a new architecture to benefit of Network Function Virtualization. On this poster, we show that the same goal can be achieved by relying on IGP. Hence, we propose a modular design called NFV-Router which is incrementally deployable. We have tested our prototype on large-scale realistic emulated topologies, showing that NFV Routers efficiently steer traffic through chains of services and only add a small overhead to control traffic.