{"title":"Ethernet performance under actual and simulated loads","authors":"W. R. Smith, R. Kain","doi":"10.1109/LCN.1991.208110","DOIUrl":"https://doi.org/10.1109/LCN.1991.208110","url":null,"abstract":"The paper presents the results of an experiment measuring Ethernet performance using station monitoring. In station monitoring the network measurements are performed internal to the stations, thus enabling the collection of delay information unavailable to typical spying network monitors. The experimental measurements are compared against similar measurements made using Ethernet simulation of the same network. The data show that measured performance differs significantly from predictions made by typical analytical and simulation models. The results have implications for the underlying assumptions used in simulation and modeling and on the use of spying monitors.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132071015","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}
Giovanni Marotta, M. Iudica, M. Tiraboschi, V. Catania, L. Vita, A. Albanese, T. N. Devetzis, M. Maszczak
{"title":"Internetworking data services","authors":"Giovanni Marotta, M. Iudica, M. Tiraboschi, V. Catania, L. Vita, A. Albanese, T. N. Devetzis, M. Maszczak","doi":"10.1109/LCN.1991.208068","DOIUrl":"https://doi.org/10.1109/LCN.1991.208068","url":null,"abstract":"This paper describes considerations for potential future public data communication services interconnecting users on private local area networks belonging to different administrative domains. The relevant management issues are addressed in an architecture consisting of distributed software modules organized in a hierarchical structure supporting network administration functions. The authors describe an experimental internetworking unit being built to explore the functional capabilities needed to interface ethernet networks to systems operating at OC-3 SONET/SDH rates of 155.22 Mb/s with basic asynchronous transfer mode (ATM) transport capabilities. They describe bandwidth allocation, address screening, address translation, and traffic monitoring service aspects in the experimental prototype.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126767227","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":"Priority-based dynamic access policies to WAN from LAN/MAN","authors":"Yong-Hee Jeon, Y. Viniotis","doi":"10.1109/LCN.1991.208067","DOIUrl":"https://doi.org/10.1109/LCN.1991.208067","url":null,"abstract":"The authors consider the integration problem of LAN/MAN traffic to WAN by ATM/SONET multiplexing. They propose separate buffers for voice and data to efficiently control the throughput of each traffic type. Transmission bandwidth is dynamically and adaptively shared between voice and data to guarantee grade of service (GOS) requirements for each traffic type. The authors propose two algorithms for access policies; the (N/sub 1/,N/sub 2/) scheme and its adaptive variation. Their algorithms do not require the knowledge of arrival statistics. In the fact scheme, they can play with the tradeoff between delay and cell loss probability of each traffic type. In the second scheme, for most of the time and under normal network conditions, voice traffic has higher priority. Data traffic has higher priority when the number of data cells queued reaches a certain threshold. They show how the network performance is affected by several system parameters.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126844825","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":"Experience with the Abstract Syntax Notation One and the Basic Encoding Rules","authors":"James D. Harvey, A. Weaver","doi":"10.1109/LCN.1991.208115","DOIUrl":"https://doi.org/10.1109/LCN.1991.208115","url":null,"abstract":"The authors discuss their experience in implementing an Abstract Syntax Notation One compiler, ASN.1 is a descriptive notation used to define the informational content of the OSI upper layer protocols. The Basic Encoding Rules are a transfer syntax that may be applied to instances of ASN.1. Collectively, these two protocols solve the disparate data representation problem within an OSI network. The authors describe the purpose and basic features of both ASN.1 and BER, their theoretical disposition within the OSI Reference Model, their practical application that includes the details of this implementation, and finally some insights into the protocols themselves is offered.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115250741","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":"Performance study of the MetaRing with Gb/s links","authors":"J. Chen, H. Ahmadi, Y. Ofek","doi":"10.1109/LCN.1991.208058","DOIUrl":"https://doi.org/10.1109/LCN.1991.208058","url":null,"abstract":"MetaRing is a Gigabit/second local area network architecture based on a dual(bi-directional) optical fiber ring with spatial reuse mechanism. The paper uses simulation to study the performance of MetaRing in the buffer insertion mode with variable length packets. It shows through various delay-throughput curves the major performance aspects of the MetaRing architecture. The results indicate that the combination of a full-duplex ring spatial reuse, and a simple and reliable fairness mechanism of the MetaRing architecture exhibit an excellent delay-throughput performance.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116595603","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 multiple switch-connected token passing ring networks","authors":"J. Yu, Wen-Tsuen Chen","doi":"10.1109/LCN.1991.208107","DOIUrl":"https://doi.org/10.1109/LCN.1991.208107","url":null,"abstract":"A pairwise switch-connection mechanism for interconnecting multiple token passing ring networks is proposed. The total number of internetwork packet store-and-forwards occurring at the bridges can be significantly reduced under the new switching method. A simple scheduling algorithm is developed to guarantee non-overlapped pairwise connection among the interconnected ring networks. Easy network access can be achieved through the use of different types of free tokens and local timers. Only simple table look-up operation is needed for the internetwork address translation. Therefore, the internetwork packets can be routed efficiently. Finally, simulation results are provided to show the fair network throughput under such switch-connection approach.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127689019","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":"IAPA: a new protocol architecture based on interacting activities","authors":"G. Conti","doi":"10.1109/LCN.1991.208094","DOIUrl":"https://doi.org/10.1109/LCN.1991.208094","url":null,"abstract":"As the throughput of communication channels grows to the order of GBits/s, communication protocols become the bottleneck in communication applications. The reason for this bottleneck resides partly in the layered protocol architecture, and partly in the complexity of the protocols. This paper presents a new protocol architecture that potentially reduces the protocol overhead by providing a more flexible design structure, giving the opportunity to design protocols suitable for efficient, parallel implementation.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133303264","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":"Integrated Access to heterogeneous databases using forthcoming OSI standards","authors":"S. Prabhakar, J. Richardson, R. Bell","doi":"10.1109/LCN.1991.208114","DOIUrl":"https://doi.org/10.1109/LCN.1991.208114","url":null,"abstract":"Integrated access to distributed data managed by heterogeneous database management systems is a critical requirement in most organizations. ISO's OSI appears to be the most promising systems integration framework for providing integrated access to heterogeneous databases. ISO is currently advancing key standards to meet this requirement. The paper presents a functional overview of these forthcoming database access standards and a strawman architecture for integrated database access. It also discusses the use of these standards for supporting integrated access to nonrelational systems. Practical aspects such as standardization schedule and vendor and user support are also discussed.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114502325","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":"Experimental evaluation of transport layer protocols for real-time applications","authors":"Brian Field, T. Znati","doi":"10.1109/LCN.1991.208105","DOIUrl":"https://doi.org/10.1109/LCN.1991.208105","url":null,"abstract":"Several transport protocols have been proposed for use in the Internet. The specifications of these protocols are based on the assumption that a general purpose transport protocol can be designed to be used by a variety of applications, including time-constrained applications. A widespread consensus among the researchers is that a general purpose transport protocol is not optimized for any applications, and thus cannot deliver the high performance required by real-time applications such as voice, motion and still video, and large file transfer. This paper investigates the validity of the above claim based on the gathering of empirical data. A generic 'protocol benchmark' is used to assess the real-time performance of a set of known transport protocols, and to analyze their suitability to handle the requirements of real-time applications.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116132532","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":"TESLA as a tool of developing bridge protocols","authors":"Jean-Lien C. Wu, Yao-Jen Chang, T. Chen","doi":"10.1109/LCN.1991.208059","DOIUrl":"https://doi.org/10.1109/LCN.1991.208059","url":null,"abstract":"In a distributed computing environment, a testbed is built to investigate topology learning behaviors of bridges for LAN interconnection. It is flexible to configure on any networked computing facility and thus serves as an environment for rapid prototyping of bridge systems. Unlike a pure simulator, the testbed employs distributed computing in itself so that the parallelism embedded in protocols under test can be exploited as well. With modular design and unified interprocess interfacing, it can be employed to explore a variety of topology algorithms. In addition, as part of testbed functions, it can simulate network topology of interest. It also provides the challenges of distributed environments, performance reports, dynamical topology change scenarios, and a graphical user interface. By direction linking the actual code of the protocols to the testbed, the phases of design, development, and testing of new systems are fully integrated.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123666517","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}