{"title":"Policing function in ATM network using multi-layer neural network","authors":"K. K. Fan, A. Jayasumana","doi":"10.1109/LCN.1996.558137","DOIUrl":"https://doi.org/10.1109/LCN.1996.558137","url":null,"abstract":"Artificial neural networks provide an attractive alternative in performing the policing function at the user network interface (UNI) of an asynchronous transfer mode (ATM) network. In order to guarantee quality of service (QOS) for the established connections in ATM networks, one of the policing functions at the UNI is to ensure that all data streams entering the ATM network conform to the allocated bandwidth, or otherwise the cell loss priority (CLP) bit in the ATM cell header must be set to reflect the situation that the output of the UNI has exceeded the permissible bandwidth. Feed-forward neural networks with back-propagation learning algorithms are chosen to perform the policing function at the UNI. Numerical results are presented to illustrate that the neural network is capable of performing the policing function.","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116000891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A class-chest for deriving transport protocols","authors":"W. Strayer","doi":"10.1109/LCN.1996.558138","DOIUrl":"https://doi.org/10.1109/LCN.1996.558138","url":null,"abstract":"The development of new transport protocols or protocol algorithms suffers from the complexity of the environment in which they an intended to run. Modeling techniques attempt to avoid this by simulating the environment. Another approach to promoting rapid prototyping of protocols and protocol algorithms is to provide a pre-built infrastructure that is common to transport protocols, so that the focus is placed on the protocol-specific aspects. The Meta-Transport Library is a library of C++ base classes that implement or abstract out the mundane functions of a protocol; new protocol implementations are derived from the base classes. The result is a fully viable user-level transport protocol implementation, with emphasis on modularity. The collection of base classes form a \"class-chest\" of tools from which protocols can be developed and studied with as little change to a normal Unix environment as possible.","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134641573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An experimental ATM-based video-on-demand system on a Macintosh platform","authors":"Mengjou Lin, D. Singer","doi":"10.1109/LCN.1996.558132","DOIUrl":"https://doi.org/10.1109/LCN.1996.558132","url":null,"abstract":"Video-on-demand (VOD) systems can support multiple concurrent video accesses with guaranteed user-controlled quality of service (QoS). The growth of VOD systems is driven by the increasing need for distributed multimedia applications such as company training, distance learning, telemedicine, and home entertainment. We propose and demonstrate an ATM-based (asynchronous transfer mode) VOD system (including VOD servers, clients and connection networks) based on a Macintosh platform. ATM is a promising network standard which may satisfy various requirements of VOD systems. In this VOD system, time-based data are encoded and decoded using the MPEG (Moving Picture Experts Group) standard. Issues related to VOD system design, including the multimedia programming environment, the required system modification to support remote MPEG playback, ATM networking, process scheduling, and buffer management for both VOD servers and clients, are discussed and analyzed based on the Macintosh platform. A prototype VOD system is used to explore the design issues proposed. The Macintosh platform provided an efficient and jitter-free VOD system supporting MPEG movie playback through ATM networks.","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"127 25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123877819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design and analysis of a new fast packet switching fabric supporting multimedia traffic","authors":"Byoung-Seok Park, Sung-Chun Kim","doi":"10.1109/LCN.1996.558130","DOIUrl":"https://doi.org/10.1109/LCN.1996.558130","url":null,"abstract":"We propose a new ATM switch architecture with output queueing. The proposed switch, FBSF (FAB Banyan switching fabrics) can deliver up to 2r packets simultaneously destined for the same outlet in a single time slot. Unlike the existing switches with multiple outlets where r parallel N/spl times/N networks are used to deliver more than one packet to each output port, the proposed FBSF switch uses only two N/spl times/N FAB networks, resulting in a simpler hardware implementation. The switch fabric consists of Batcher sorter; a radix-r double shuffle network, r-packet distributors, two FAB networks, and output buffer modules. The proposed FBSF switch also supports multimedia traffic such as voice and compressed video data as well as text data. The performance of the switch fabric is evaluated by measures of throughput, packet delay, and packet loss probability. The numerical results show that nearly perfect throughput can be archived by the proposed switch in the case where r/spl ges/2.","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126248447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yeali S. Sun, Chin-Fu Ku, Yu-Chun Pan, Chia-Hui Wang, Jan-Ming Ho
{"title":"Performance analysis of application-level traffic shaping in a real-time multimedia conferencing system on Ethernets","authors":"Yeali S. Sun, Chin-Fu Ku, Yu-Chun Pan, Chia-Hui Wang, Jan-Ming Ho","doi":"10.1109/LCN.1996.558172","DOIUrl":"https://doi.org/10.1109/LCN.1996.558172","url":null,"abstract":"Many real-time, multimedia applications (e.g., teleconferencing) have been successful deployed over the Internet and its overlayed multicast backbone network (MBONE). However poor, unpredictable transfer performance of the continuous media in Internet is common and inevitable due to the intrinsic \"best-effort\" transport techniques used. Before the full-blown ATM networks or any other networks with QoS offerings are in place, Ethernets are still the most popular networks in today's office environments. We investigate how application-level traffic shaping (spacing) can help to reduce the possibly drastic performance degradation of real-time multimedia conferencing applications on a heavily-loaded Ethernet. An experimental testbed is constructed and all the application software is implemented in our laboratory. Performance results measured from the testbed are presented to provide insights of how the performance degradations occur and to illustrate how a real-time application can lessen the situation.","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117229968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Characterization and control of highly correlated traffic in high speed networks","authors":"Ying-Dar Lin, Tian-Ren Huang, Y. Lai","doi":"10.1109/LCN.1996.558127","DOIUrl":"https://doi.org/10.1109/LCN.1996.558127","url":null,"abstract":"By assuming network traffic to be independent from each other, the analysis of network performance can be simplified. However, the real traffic sources may have some correlation which makes their behavior tend to converge or diverge. This phenomenon has a tremendous influence on congestion control. In this paper, we explain the possible reasons for correlated behavior, namely, top-down and client-server correlation, and analyze their impacts. We also use the rapid matrix-geometric solution to investigate the cost to pay when applying the leaky bucket input control scheme to the independent traffic sources (e.g. Poisson) and the correlated traffic sources (such as on-off and HAP (hierarchical arrival process)).","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117271977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adaptive resource scheduling strategies and performance analysis of broadband networks","authors":"E. Valeroso, Mansoor Alam","doi":"10.1109/LCN.1996.558159","DOIUrl":"https://doi.org/10.1109/LCN.1996.558159","url":null,"abstract":"Broadband networks are fast becoming integrated into the information infrastructure. The need to transport multimedia calls requiring not only high bandwidth but also minimal loss and delay is rapidly increasing. The increased ratio of propagation delay to bit duration creates new problems in dynamic control. This paper focuses on developing adaptive control strategies and dynamic resource scheduling algorithms which would efficiently allocate (B-ISDN/ATM) network resources (e.g., bandwidth and buffers), while maintaining the best possible quality of service. Multimedia calls are classified based on crossover behavior. Simulation models used to study the system performance are presented. Performance metrics of interest include network throughput, call blocking rate, and crossover blocking probabilities.","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115658063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effects of data locality on FDDI-based schemes at gigabit speeds","authors":"B. Albert, A. Jayasumana","doi":"10.1109/LCN.1996.558126","DOIUrl":"https://doi.org/10.1109/LCN.1996.558126","url":null,"abstract":"This paper explores the effects of locality on the performance of a FDDI-based multinetworking environment and compares this to a scaled FDDI approach. Both of these schemes have been presented to the Standards Committee for consideration in migrating the FDDI protocols to gigabit speeds. One is a simple linear scaling (10/spl times/) of the FDDI protocol to reach the gigabit speed, and the second, presented by these authors, is a hierarchical scheme which preserves the existing FDDI standards and defines an interconnection network that acts as a backbone to the underlying FDDI networks. An introduction to both network schemes is presented. The average network access delay in the hierarchical network scheme is affected by the locality of the data traffic since data traffic has to traverse two networks if it is not local. A numerical method is presented which allows access to delay results with various network configurations. In the scaled approach there is only one network, thus eliminating the effects of data locality on the performance of the network. The paper is concluded with a discussion of the pros and cons of the two schemes.","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124387753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Scheduling and buffer management for soft-real-time VBR traffic in packet-switched networks","authors":"I. Philp, K. Nahrstedt, J. Liu","doi":"10.1109/LCN.1996.558142","DOIUrl":"https://doi.org/10.1109/LCN.1996.558142","url":null,"abstract":"This paper describes four scheduling algorithms and two packet-dropping algorithms for transmitting soft-real-time variable-bit-rate traffic in a packet-switched network. Simulation results show that the first-come-first-serve algorithm, which is equivalent to the earliest-deadline-first algorithm when all packets have equal relative deadlines, outperforms the timed-token algorithm as well as two other real-time scheduling algorithms. We also simulated the last-in-first-discard (LIFD) algorithm as well as a more complex (1,k) packet-dropping algorithm which, for each stream, tries to drop no more than I packet in any sequence of k packets. We found that although the (1,k) dropping algorithm does significantly reduce the failure rate, the same reduction in this failure rate can be achieved by slightly lowering the network utilization and using the simpler LIFD algorithm.","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127571627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reliable multicasting in the Xpress transport protocol","authors":"J. Atwood, O. Catrina, J. Fenton, W. Strayer","doi":"10.1109/LCN.1996.558148","DOIUrl":"https://doi.org/10.1109/LCN.1996.558148","url":null,"abstract":"The Xpress transport protocol (XTP) is designed to meet the needs of distributed, real-time, and multimedia systems. This paper describes the genesis of recent improvements to XTP that provide mechanisms for reliable management of multicast groups, and gives details of the mechanisms used.","PeriodicalId":420811,"journal":{"name":"Proceedings of LCN - 21st Annual Conference on Local Computer Networks","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122026390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}