Implementation of virtual network function chaining through segment routing in a linux-based NFV infrastructure
Ahmed Abdelsalam, François Clad, Clarence Filsfils, Stefano Salsano, Giuseppe Siracusano, Luca Veltri · 2017
This paper presents an architecture to support Vir- tual Network Functions (VNFs) chaining using the IPv6 Segment Routing (SR) network programming model. Two classes of VNFs are considered: SR-aware and SR-unaware. The operations to support both SR-aware and SR-unaware VNFs are described at an architectural level and we propose a solution for SR-unaware VNFs hosted in a NFV node. An Open Source implementation of the proposed solution for a Linux based NFV host is available and a set of performance measurements have been carried out in a testbed.