@techreport{wu-pce-traffic-steering-sfc-12, number = {draft-wu-pce-traffic-steering-sfc-12}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-wu-pce-traffic-steering-sfc/12/}, author = {Qin Wu and Dhruv Dhody and Mohamed Boucadair and Christian Jacquenet and Jeff Tantsura}, title = {{PCEP Extensions for Service Function Chaining (SFC)}}, pagetotal = 12, year = 2017, month = jun, day = 30, abstract = {This document provides an overview of the usage of Path Computation Element (PCE) to dynamically structure service function chains. Service Function Chaining (SFC) is a technique that is meant to facilitate the dynamic enforcement of differentiated traffic forwarding policies within a domain. Service function chains are composed of an ordered set of elementary Service Functions (such as firewalls, load balancers) that need to be invoked according to the design of a given service. Corresponding traffic is thus forwarded along a Service Function Path (SFP) that can be computed by means of PCE. This document specifies extensions to the Path Computation Element Protocol (PCEP) that allow a stateful PCE to compute and instantiate Service Function Paths.}, }