@misc{rfc8597, series = {Request for Comments}, number = 8597, howpublished = {RFC 8597}, publisher = {RFC Editor}, doi = {10.17487/RFC8597}, url = {https://www.rfc-editor.org/info/rfc8597}, author = {Luis M. Contreras and Carlos J. Bernardos and Diego Lopez and Mohamed Boucadair and Paola Iovanna}, title = {{Cooperating Layered Architecture for Software-Defined Networking (CLAS)}}, pagetotal = 21, year = 2019, month = may, abstract = {Software-Defined Networking (SDN) advocates for the separation of the control plane from the data plane in the network nodes and its logical centralization on one or a set of control entities. Most of the network and/or service intelligence is moved to these control entities. Typically, such an entity is seen as a compendium of interacting control functions in a vertical, tightly integrated fashion. The relocation of the control functions from a number of distributed network nodes to a logical central entity conceptually places together a number of control capabilities with different purposes. As a consequence, the existing solutions do not provide a clear separation between transport control and services that rely upon transport capabilities. This document describes an approach called Cooperating Layered Architecture for Software-Defined Networking (CLAS), wherein the control functions associated with transport are differentiated from those related to services in such a way that they can be provided and maintained independently and can follow their own evolution path.}, }