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[1991] Proceedings 16th Conference on Local Computer Networks最新文献

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A simulation study on a high-speed slotted-ring access mechanism with dynamically adaptive slot sizes 动态自适应高速槽环接入机构的仿真研究
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208055
H. Pasch, I. Niemegeers
{"title":"A simulation study on a high-speed slotted-ring access mechanism with dynamically adaptive slot sizes","authors":"H. Pasch, I. Niemegeers","doi":"10.1109/LCN.1991.208055","DOIUrl":"https://doi.org/10.1109/LCN.1991.208055","url":null,"abstract":"Two access mechanisms complementary in performance are the token ring and the slotted ring. While the token ring outperforms the slotted ring for long messages, the latter performs significantly better for short messages. The paper shows that the factor that causes this difference is the number of tokens on the ring. It proposes a new network design in which the number of tokens has been made adaptive, resulting in a network that can be made to behave like both the token ring and the slotted ring, or anything in between, i.e. it performs optimally for any given message length. The paper presents first simulation results that show the performance gain that is achieved by using this principle. Further, it introduces a new priority mechanism in which an upper bound for the access delay of high priority messages is guaranteed.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"16 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":"115403096","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}
引用次数: 2
FDDI advanced concentrator architecture considerations FDDI高级选矿厂架构考虑
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208086
James Vogt
{"title":"FDDI advanced concentrator architecture considerations","authors":"James Vogt","doi":"10.1109/LCN.1991.208086","DOIUrl":"https://doi.org/10.1109/LCN.1991.208086","url":null,"abstract":"This paper addresses architectural issues regarding the design of an advanced concentrator for FDDI networks. The main theme is the advanced management, configuration and control capabilities provided by this architecture. The following major points are addressed: advantages inherent to a multiple MAC concentrator (i.e. at least one MAC residing on each of the three possible internal path types: primary, secondary and local); applications of the multiple MAC architecture, emphasizing roving MAC utilization for maintenance, configuration and diagnostic capability; optimal hardware longevity afforded by an advanced architecture, allowing for FDDI market development, enabling extended features without necessitating hardware upgrade; and implementation details regarding specific enhanced features afforded by an advanced architecture.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"2 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":"117326877","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}
引用次数: 0
A ring purger for the FDDI token ring 用于FDDI令牌环的环清除器
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208103
Henry S. Yang, K. Ramakrishnan
{"title":"A ring purger for the FDDI token ring","authors":"Henry S. Yang, K. Ramakrishnan","doi":"10.1109/LCN.1991.208103","DOIUrl":"https://doi.org/10.1109/LCN.1991.208103","url":null,"abstract":"The fiber distributed data interface (FDDI) is a 100 Mb/s token ring which includes extensive reliability and robustness mechanisms to provide fault detection, isolation, monitoring, and recovery functions. The authors examine two well-known problems on token rings and their potential impact on FDDI. The two problems are no-owner frame (NOF) and duplicate tokens. FDDI effectively resolves these problems only when either the NOF or the duplicate token collides into a transmitting station. The impact of NOFs and duplicate tokens during the period from the occurrence of the NOF and the duplicate token until they are removed by a transmitting station can be severe. This paper presents a ring purger that transparently and continuously removes the NOFs and detects and removes duplicate tokens. A ring purger is a designated station on a ring that performs its normal functions as a station and, in addition, performs the removal of NOFs and duplicate tokens. A distributed election algorithm is used to elect a single station on a given ring to be the ring purger. The authors also present performance and robustness considerations used in the design of the ring purger algorithms. They study the performance effect of continuously purging the ring and show that the effect is negligible even in the worst case.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"126 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120890753","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}
引用次数: 4
An expert integrator for communication networks management 通信网络管理专家集成商
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208088
Chi-Chun Lo
{"title":"An expert integrator for communication networks management","authors":"Chi-Chun Lo","doi":"10.1109/LCN.1991.208088","DOIUrl":"https://doi.org/10.1109/LCN.1991.208088","url":null,"abstract":"Network management is a difficult problem. How to manage the multi-vendor network efficiently and effectively has become a growing concern in the international communication networks community. OSI management has defined a basic set of facilities (functional areas) that the network management should provide. The authors propose an integrated architecture which allows the expert systems, one for each functional area, to work together in an organized way. An additional expert, namely the integrator, sits on top of the five functional experts. It passes the triggering data received from the network components to the appropriate functional experts that understand a specific network problem. In this architecture, OSI network management protocols are used as means of communications among experts. An object-oriented database and a generic user interface are presented.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"256 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":"114357929","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}
引用次数: 0
16 Mb/s token ring on unshielded twisted pair cabling 16mb /s令牌环非屏蔽双绞线布线
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208048
T. Hill, K. Kalbarczyk, R. Schmidt, R. W. Smith
{"title":"16 Mb/s token ring on unshielded twisted pair cabling","authors":"T. Hill, K. Kalbarczyk, R. Schmidt, R. W. Smith","doi":"10.1109/LCN.1991.208048","DOIUrl":"https://doi.org/10.1109/LCN.1991.208048","url":null,"abstract":"Local area networks operating on structured cabling systems using unshielded twisted pair (UTP) cable are finding increased utilization. These systems provide low cost installation and easy administration. The paper addresses the technical issues concerning the implementation of a robust and practical 16 Mb/s token ring LAN using unshielded twisted pair cabling for lobe connections. Three technical approaches are presented and evaluated for both common unshielded twisted pair cable and new high performance unshielded twisted pair cable. It is shown that 16 Mb/s token ring can operate with lobe lengths of 300 feet on both types of UTP cables provided the appropriate technical approach is implemented.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"132 S222","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113972679","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}
引用次数: 0
Making transport protocols fast 使传输协议更快
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208078
A. Weaver
{"title":"Making transport protocols fast","authors":"A. Weaver","doi":"10.1109/LCN.1991.208078","DOIUrl":"https://doi.org/10.1109/LCN.1991.208078","url":null,"abstract":"An international group of researchers, led by Dr. G. Chesson at Silicon Graphics Inc., has developed a new transport+network protocol for modern distributed computing systems. Extant protocols (e.g. TCP, TP4, Delta-t, NETBLT, GAM-T-103, VMTP, URP) were first examined to understand their solutions to common data transfer problems. Then, a new protocol called XTP (Xpress Transfer Protocol) was developed which both reuses ideas known to be good and breaks new ground in the definition and delivery of communications services. XTP is specifically designed for implementation in hardware as the Protocol Engine which will connect to a commercial FDDI chipset. The author reports first on the philosophy underlying XTP's design, and then on his experiences in producing a software implementation.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"37 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":"134014218","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}
引用次数: 10
An operating system suited for integrated broadband communications networks 一种适用于综合宽带通信网络的操作系统
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208096
T. Vardanega
{"title":"An operating system suited for integrated broadband communications networks","authors":"T. Vardanega","doi":"10.1109/LCN.1991.208096","DOIUrl":"https://doi.org/10.1109/LCN.1991.208096","url":null,"abstract":"Broadband communications technologies are close to maturity. Substantial changes can be therefore anticipated in the software architecture of next-generation computer networks. The consequences will be numerous. Amongst them, the classic separation between local- and wide-area networks is bound to become impractical under future circumstances. This paper pursues this argument by introducing the design of an innovative operating system suitable for future broadband networks. Special focus lays on properties of distribution, openness and scalability.<<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":"132160449","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}
引用次数: 0
Distributing the Stuttgart Tetrahedron 分布斯图加特四面体
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208064
P. Christ
{"title":"Distributing the Stuttgart Tetrahedron","authors":"P. Christ","doi":"10.1109/LCN.1991.208064","DOIUrl":"https://doi.org/10.1109/LCN.1991.208064","url":null,"abstract":"The paper describes the 'Stuttgart Tetrahedron' and how it is distributed under the 'ideal' campus situation. The need for knowledge sharing and cooperation between researchers in strategic fields is shown to be the main driving force for distributing such tetrahedrons over Germany and necessarily over Europe. The Stuttgart VBN projects and the MAN field trial are described within this context. The European and USA situation are contrasted. It is concluded that under European conditions distributed supercomputing combined with multimedia applications in a Pan-European ATM-infrastructure will be the most appropriate strategy to distribute the Stuttgart Tetrahedron to an European scale.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"47 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":"116311855","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}
引用次数: 1
FDDI network availability analysis FDDI网络可用性分析
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208044
M. Willebeek-LeMair, Antonio Ruiz
{"title":"FDDI network availability analysis","authors":"M. Willebeek-LeMair, Antonio Ruiz","doi":"10.1109/LCN.1991.208044","DOIUrl":"https://doi.org/10.1109/LCN.1991.208044","url":null,"abstract":"Various FDDI network configurations are characterized and their availabilities evaluated. From these results it is concluded that an FDDI network backbone should be interconnected using dual attachment concentrators. This is essential for guaranteeing high availability. Furthermore, dual-homing configurations are required to maintain high availability of the path between end-stations and the backbone. For less stringent availability requirements, single attachment concentrator trees with single attachment stations may suffice. A cost analysis of the configurations is also included.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"5 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":"128531936","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}
引用次数: 7
A fair and fast protocol for DQDB metropolitan area networks 一种公平、快速的DQDB城域网协议
[1991] Proceedings 16th Conference on Local Computer Networks Pub Date : 1991-10-14 DOI: 10.1109/LCN.1991.208106
M. Yuang, Hao-Tsan Chang
{"title":"A fair and fast protocol for DQDB metropolitan area networks","authors":"M. Yuang, Hao-Tsan Chang","doi":"10.1109/LCN.1991.208106","DOIUrl":"https://doi.org/10.1109/LCN.1991.208106","url":null,"abstract":"Distributed queue dual bus (DQDB) was shown to exhibit throughput unfairness problems in which bandwidth allocation is dependent on the physical locations of nodes, as the size and load of the network increase. To eliminate the unfairness problems, various mechanisms have been proposed. This paper first analyzes the unfairness problems and presents a survey of these mechanisms, including an analysis of their strengths and weaknesses. The paper then proposes a fair and fast protocol, called multiple segment control (MSC). MSC grants node multiple slots on continuation basis for any single request issued in an attempt to minimize the propagation delay. The node keeps being granted until it has issued an 'end' request. Consequently, MSC offers fair and high throughput to all nodes for both light and heavy load conditions. Finally, the performance of MSC is evaluated and compared with that of DQDB via simulation results.<<ETX>>","PeriodicalId":163373,"journal":{"name":"[1991] Proceedings 16th Conference on Local Computer Networks","volume":"135 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":"130141057","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}
引用次数: 11
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