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Improving Performance in a Combined Router/Server
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Network Systems Laboratory (NS Lab). (Network Systems Lab)ORCID iD: 0000-0001-7952-4779
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Network Systems Laboratory (NS Lab). (Network Systems Lab)ORCID iD: 0000-0002-6427-4612
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Network Systems Laboratory (NS Lab). (Network Systems Lab)ORCID iD: 0000-0002-3172-076X
2012 (English)In: 2012 IEEE 13th International Conference on High Performance Switching and Routing, HPSR 2012, IEEE , 2012, 52-58 p.Conference paper, Published paper (Refereed)
Abstract [en]

A modern PC-based router can provide as competitive service as a specialized hardware router while offering more flexibility and possibility to extend beyond routing. We focus on a use case in which the PC-based router also functions as a server. In this paper, we propose a multi-core based architecture for a combined router/server that efficiently provides simultaneous packet forwarding and server processing. We improve the overall performance by creating a fast path for packet forwarding through caching flow entries in on-board classification hardware on the NIC. We propose a generic design based on multi-core processors and multi-queue network interface cards. We describe a prototype implementation and present an experimental evaluation of this design. We also devise a strategy for how to efficiently map packet forwarding and application processing tasks onto the multi-core architecture.

Place, publisher, year, edition, pages
IEEE , 2012. 52-58 p.
Series
IEEE International Conference on High Performance Switching and Routing, ISSN 2325-5595
Keyword [en]
Computer hardware, Hardware, Interfaces (computer)
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-103429DOI: 10.1109/HPSR.2012.6260827ISI: 000330484900008Scopus ID: 2-s2.0-84866934699ISBN: 978-145770832-9 (print)OAI: oai:DiVA.org:kth-103429DiVA: diva2:560124
Conference
IEEE 13th International Conference on High Performance Switching and Routing (HPSR), 2012; Belgrade, Serbia; 24-27 June 2012
Funder
VinnovaICT - The Next Generation
Note

QC 20121121

Available from: 2012-10-11 Created: 2012-10-11 Last updated: 2014-10-07Bibliographically approved
In thesis
1. Performance and Reliability in Open Router Platforms for Software-Defined Networking
Open this publication in new window or tab >>Performance and Reliability in Open Router Platforms for Software-Defined Networking
2014 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The unprecedented growth of the Internet has brought about such an enormous impact on our daily life that it is regarded as indispensable in modern era. At the same time, the underlying Internet architecture is still underpinned by principles designed several decades ago. Although IP networking has been proven very successful, it has been considered as the cause to network ossification creating barriers to entry for new network innovations. To support new demands and requirements of the current and the future Internet, solutions for new and improved Internet architectures should be sought.

Software-defined networking (SDN), a new modularized network architecture that separates the control plane from the data plane, has emerged as a promising candidate for the future Internet. SDN can be described as flow-based networking, which provides finer granularity while maintaining backward compatibility with traditional IP networking.

In this work, our goal is to investigate how to incorporate flow-based networking into open router platforms in an SDN context. We investigate performance and reliability aspects related to SDN data plane operation in software on open source PC-based routers.

Our research methodology is based on design, implementation, and experimental evaluation. The experimental platform consists of PC-based routers running open source software in combination with commodity-off-the-shelf (COTS) hardware components. When it comes to performance aspects, we demonstrate that by offloading the lookup from a CPU to a network interface card, the overall performance is improved significantly. For enhanced reliability, we investigate bidirectional forwarding detection (BFD) as a component to realize redundancy with fast failover. We demonstrate that BFD becomes unreliable under high traffic load and propose a solution to this problem by allocating dedicated system resources for BFD control messages. In line with this solution, we extend our architecture for next-generation PC-based routers with OpenFlow support by devising a strategy to efficiently map packet forwarding and application processing tasks onto the multi-core architecture on the PC-based router. This extension would make it possible to integrate BFD effectively into the router platform.

Our work demonstrates the potentials of open router platforms for SDN. Our prototypes offer not only high performance with good reliability but also flexibility to adopt new software extensions. Such platforms will play a vital role in advancing towards the future Internet.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2014. x, 39 p.
Series
TRITA-ICT-ECS AVH, ISSN 1653-6363 ; 14:07
Keyword
performance, reliability, OpenFlow, software-defined networking (SDN)
National Category
Communication Systems
Research subject
Information and Communication Technology
Identifiers
urn:nbn:se:kth:diva-144285 (URN)978-91-7595-082-2 (ISBN)
Presentation
2014-05-16, Sal D, Isafjordsgatan 39, Kista, 10:00 (English)
Opponent
Supervisors
Funder
Vinnova
Note

QC 20140416

Available from: 2014-04-16 Created: 2014-04-15 Last updated: 2014-04-16Bibliographically approved

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Tanyingyong, VoravitHidell, MarkusSjödin, Peter

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  • apa
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