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Efficient Many-to-Many Real-Time Communication Using an Intelligent Ethernet Switch
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS).
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS).ORCID iD: 0000-0002-6526-3931
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS).
2004 (English)In: Proceedings of the 7th International Symposium on Parallel Architectures, Algorithms and Networks, 2004 / [ed] D.F. Hsu, K. Hiraki, S. Shen, H. Sudborough, Piscataway, N.J.: IEEE , 2004, p. 280-287Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a solution for efficient many-to-many communication over switched Ethernet. The performance of using an ordinary switch and an intelligent switch is compared, and the results of the analysis based on 100 Mbit/s fast Ethernet show that an intelligent switch used to handle many-to-many communication can give better performance (shorter latency and higher utilization) than an ordinary switch. We also extend the network to serve many-to-many traffic with real-time demands by adding a thin software layer to the intelligent Ethernet switch and the end-nodes. Earliest deadline first (EDF) scheduling is used.

Place, publisher, year, edition, pages
Piscataway, N.J.: IEEE , 2004. p. 280-287
Series
International Symposium on Parallel Architectures, Algorithms and Networks, ISSN 1087-4089 ; 7
Keywords [en]
Local area networks, Real-time systems, Scheduling, Telecommunication switching, Telecommunication traffic
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:hh:diva-387DOI: 10.1109/ISPAN.2004.1300493ISI: 000222086800046Scopus ID: 2-s2.0-3543078803Local ID: 2082/711ISBN: 0-7695-2135-5 OAI: oai:DiVA.org:hh-387DiVA, id: diva2:237566
Conference
7th International Symposium on Parallel Architectures, Algorithms and Networks, Hong Kong, China, 10-12 May, 2004
Note

©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Available from: 2007-01-12 Created: 2007-01-12 Last updated: 2018-03-23Bibliographically approved
In thesis
1. Real-Time Communication Services for Distributed Computing over Switched Ethernet
Open this publication in new window or tab >>Real-Time Communication Services for Distributed Computing over Switched Ethernet
2004 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

In modern and future parallel and distributed processing, a large part of computation overhead comes from communication. This can be minimized if the network protocol offers the user services that are aimed at specific types of communication used in these applications. Other important properties of distributed processing applications are time-deterministic latency and guarantees to meet deadlines. Moreover, an important trend is to implement distributed real-time applications on top of standard Ethernet based networks. Therefore, in this thesis, we focus on developing and analyzing how to efficiently support real-time communication services for distributed computing applications over switched Ethernet. The network architecture currently assumed is a switched Ethernet network with only one switch.

The work has resulted in proposed Switched Ethernet networks that offer additional features for parallel and distributed real-time processing. An active Ethernet switch concept is proposed to provide efficient support for different user services, including many-to-many communication and other group communication services with high traffic volumes of short messages. Meanwhile, the real-time support for these special communication patterns is addressed by incorporating deadline-based scheduling in the switch and the end nodes.

Moreover, this thesis addresses real-time services by proposing an alternative solution. In this proposal, the Earliest Deadline First (EDF) algorithm is only used in the source nodes to support real-time traffic with a guaranteed bit rate and end-to-end worst-case delay bound. The thesis also reports a feasibility analysis for hard real-time traffic, which also produces figures on the minimum buffer sizes in the switch to be able to guarantee real-time demands. Meanwhile, differentiation of heterogeneous traffic is considered in the proposed system by placing traffic into several priority classes with distinctly different QoS levels.

The performance of the proposed methods is evaluated in simulations and calculations. It is shown that the different Ethernet extensions, in many cases, are efficient choices for distributed computing systems.

Place, publisher, year, edition, pages
Göteborg: Chalmers tekniska högskola, 2004. p. x, 22
Series
Technical report.L / School of Computer Science and Engineering, Chalmers University of Technology, ISSN 1651-4963 ; 37
Keywords
Switched Ethernet, Real-time, Parallel and distributed processing, Scheduling
National Category
Computer Systems
Identifiers
urn:nbn:se:hh:diva-374 (URN)2082/698 (Local ID)2082/698 (Archive number)2082/698 (OAI)
Presentation
2004-11-17, Wigforssalen, Visionen, Kristian IV:s väg 3, Halmstad, 14:15 (English)
Supervisors
Projects
EEERT-SAN
Funder
Knowledge Foundation
Available from: 2007-01-10 Created: 2007-01-10 Last updated: 2018-03-23Bibliographically approved

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Fan, XingJonsson, MagnusHoang, Hoai

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