The documents distributed by this server have been provided by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a non-commercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, not withstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.

OpenBNG: Central office network functions on programmable data plane hardware

Author:Ralf Kundel, Leonhard Nobach, Jeremias Blendin, Wilfried Maas, Andreas Zimber, Hans-Joerg Kolbe, Georg Schyguda, Vladimir Gurevich, Rhaban Hark, Boris Koldehofe, Ralf Steinmetz
Date:August 2020
Kind:Article - use for journal articles only
Journal:International Journal of Network Management
Note:This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Keywords:P4, BNG, Disaggregation, HQoS, FPGA
Research Area(s):Network Mechanisms & QoS
Abstract:Telecommunication providers continuously evolve their network infrastructure by increasing performance, lowering time to market, providing new services, and reducing the cost of the infrastructure and its operation. Network function virtualization (NFV) on commodity hardware offers an attractive, low-cost platform to establish innovations much faster than with purpose-built hardware products. Unfortunately, implementing NFV on commodity processors does not match the performance requirements of the high-throughput data plane components in large carrier access networks. Therefore, programmable hardware architectures like field programmable gate arrays (FPGAs), network processors, and switch silicon supporting the flexibility of the P4 language offer a promising way to account for both performance requirements and the demand to quickly introduce innovations into networks. In this article, we propose a way to offer residential network access with programmable packet processing architectures. On the basis of the highly flexible P4 programming language, we present a design and open source implementation of a broadband network gateway (BNG) data plane that meets the challenging demands of BNGs in carrier-grade environments. In addition, we introduce a concept of hybrid openBNG design, realizing the required hierarchical quality of service (HQoS) functionality in a subsequent FPGA. The proposed evaluation results show the desired performance characteristics, and our proposed design together with upcoming P4 hardware can offer a giant leap towards highest performance NFV network access.
Full paper (pdf)

[Export this entry to BibTeX]