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[1990] Proceedings. 15th Conference on Local Computer Networks

Sept. 30 1990-Oct. 3 1990

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Displaying Results 1 - 25 of 59
  • Signal Shaping for Bit-Interleaved Coded Modulation on the AWGN Channel

    Publication Year: 1990, Page(s):1 - 8
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (342 KB)

    The following topics were dealt with: LANs; integrated services networks; gigabit networks; network performance; internetworking; asynchronous transfer mode (AMT); high performance protocols; FDDI; military/government networks; distributed/real-time networks; and metropolitan area networks View full abstract»

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  • UltraNet: an architecture for gigabit networking

    Publication Year: 1990, Page(s):232 - 248
    Cited by:  Papers (3)  |  Patents (48)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1452 KB)

    UltraNet, a multigigabit/second integrated network, is designed to deliver the highest possible effective performance, which is defined to be the application-to-application transfer rate using a standard programming interface. It uses data links that operate up to 1 Gb/s and very high-speed bridges to connect them into a multigigabit seamless fabric. UltraNet is different from many local area netw... View full abstract»

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  • An efficient implementation of a high-speed protocol without data copying

    Publication Year: 1990, Page(s):443 - 450
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    An efficient approach for implementing a method of minimizing data copying developed by M.L. Woodside et al. (1989) is advocated. The method, referred to as buffer cut through (BCT), allows the passing of data buffer through layers without copying, relying on the principle of passing responsibility for the buffer from one layer to another. The method proposed for the implementation of BCT is the u... View full abstract»

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  • A high performance implementation of OSI transport protocol class 4; evaluation and perspectives

    Publication Year: 1990, Page(s):223 - 230
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    General-purpose protocols such as open systems interconnection (OSI) transport protocol class 4 (TP4) are confronted with new requirements in computer communication. The services proposed become unadapted and performance insufficient. Then appears a new generation of high-speed protocols designed for real-time applications or VLSI implementation. TP4 performance and its modeling for multiprocessor... View full abstract»

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  • LAN with collision avoidance: switch implementation and simulation study

    Publication Year: 1990, Page(s):84 - 92
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    Presents a design of a collision avoidance switch for the collision avoidance multiple broadcast (CAMB) tree using transistor-transistor logic (TTL) devices. A simulation study exploring the performance of the broadcast star network in both synchronous and asynchronous operations is also presented. Simulation results show that the slotted broadcast star achieves better performance than the unslott... View full abstract»

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  • Variable-bit-rate video transmission in the broadband ISDN environment

    Publication Year: 1990, Page(s):213 - 222
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (868 KB)

    The simple automatic repeat request (ARQ) scheme, error concealment by command refreshment, appropriate queuing discipline and priority switching design, layered source coding schemes, and other signal processing techniques are summarized with emphasis on different layered source coding schemes. Four types of signal priority classification schemes are identified: bit-plane separation (BPS), freque... View full abstract»

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  • A high performance OSI implementation on FDDI

    Publication Year: 1990, Page(s):301 - 309
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    The design and implementation of a high-speed, fiber-optic-based communications system which implements the critical communications technologies required for the US space station freedom program is described. The system, termed the multi-compatible network interface unit (MCNIU), prototypes a standardized communications service between intelligent devices and subsystems in the space station data m... View full abstract»

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  • Performance evaluation of FDDI network and interconnected heterogeneous networks

    Publication Year: 1990, Page(s):75 - 83
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    Interconnected heterogeneous networks are presented and their performance analyzed. The interconnected networks consist of token ring, fiber distributed data interface (FDDI), and carrier sense multiple access with collision detection (CSMA/CD) networks, each of which connects a large population of users. In the interconnected networks, the local users on the token ring send intra- or internetwork... View full abstract»

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  • Performance enhancement of double linked backbone rings in interconnected token ring network

    Publication Year: 1990, Page(s):143 - 151
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    Experimental results show that the performance of the IEEE 802.2 and 802.5 protocols for a single token ring is severely degraded in an interconnected token ring network. Congestion at bridges in a network is the primary cause of the degradation of the performance. An approach is investigated in which a secondary transmission link is added to the backbone ring of a network to form a double-linked ... View full abstract»

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  • High-speed multimedia backbone LAN architecture based on ATM technology

    Publication Year: 1990, Page(s):207 - 212
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    A new high-speed multimedia backbone LAN (MBLAN) architecture that efficiently accommodates existing terminals and offers connectivity with public networks in the introduction stage of broadband ISDN (B-ISDN) is presented. A logical 156-Mb/s ring with the standard synchronous optical network (SONET) format is a basic element to realize the proposed high-speed backbone LAN. Several rings are multip... View full abstract»

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  • Performance of the Xpress transfer protocol in an Ethernet environment

    Publication Year: 1990, Page(s):292 - 300
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    A simulation analysis is presented of the performance of the Xpress transfer protocol (XTP), a high-speed protocol intended for fiber distributed data interface (FDDI) or Ethernet environments. The local area network simulation facility (LANSF) is modified to support virtual circuit simulation, and then used to obtain the XTP performance statistics. The chosen simulation LAN environment is Etherne... View full abstract»

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  • Optical switching and routing architectures for fiber-optic computer communication networks

    Publication Year: 1990, Page(s):65 - 74
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB)

    An optical interface message processor (OPTIMP) is proposed that exploits the high bandwidth, parallelism, multidimensional capability, and high storage density offered by optics. The most time consuming operations such as switching and routing in communication networks are performed in the optical domain in the proposed system. The design does not suffer from the optical/electrical conversion bot... View full abstract»

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  • Experiences in local networking at USF

    Publication Year: 1990, Page(s):137 - 142
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    Some of the experiences in networking at the University of South Florida (USF) College of Engineering are described. The LAN selection process and the wiring requirements are outlined. Two networks, the transcendental operating system (TOPS) and the 3Com Ethernet, are reviewed for implementation in this college environment View full abstract»

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  • ATM adaptation layer protocols and IEEE LAN interconnection

    Publication Year: 1990, Page(s):200 - 206
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    The asynchronous transfer mode (ATM) adaptation layer provides functions for mapping source traffic into ATM cells as required in recent standardization work for packet switched integrated broadband networks. Functions, services, and protocols suitable for signaling and other packet mode traffic are studied. The resulting protocol stacks are critically examined for two important and differing appl... View full abstract»

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  • SAFENET-a Navy approach to computer networking

    Publication Year: 1990, Page(s):268 - 273
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    The SAFENET (survivable adaptable fiber optic embedded network) standards which are being developed for use in US Navy computer-based systems, are described. There are two SAFENET standards. SAFENET I is based on the IEEE 802.5 LAN standard, while SAFENET II is based on the fiber distributed data interface (FDDI). The SAFENET physical topology is based on a dual counter-rotating ring architecture ... View full abstract»

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  • An evolutionary approach to the design of a metropolitan area network to support B-ISDN applications

    Publication Year: 1990, Page(s):431 - 440
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    High-level technical information on issues concerning the evolutionary design of a metropolitan area network (MAN) is provided to support broadband integrated services digital network (BISDN). The focus is on methods of providing more aggregate bandwidth than the emerging IEEE Std. 802.6 for the distributed queueing dual bus (DQDB). The limited bandwidth problem associated with the DQDB proposal i... View full abstract»

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  • FOCON/34-fiber optical network for voice and data

    Publication Year: 1990, Page(s):285 - 291
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    A family of fiber-optic local area networks (LANs) intended to meet future requirements for naval and land-based applications was developed. High-speed transmission, flexibility, the ability to transmit data, voice and narrowband video and an excellent survivability were the main aims envisaged. The first product of this family was FOCON/8 (fiber optical communication network-8 Mb/s) which has bee... View full abstract»

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  • Register insertion/self-token protocol for high speed ring LANs

    Publication Year: 1990, Page(s):60 - 64
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    A new ring access control scheme adopting a multiple-token protocol is investigated. In this protocol, each station distributed on a ring has a private token, called self-token, and a fixed-length register to carry out the register insertion protocol. The protocol shows good properties for shorter packets, becoming more superior to the token-ring and the FDDI-I protocols as the packet length decre... View full abstract»

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  • FDDI follow-on status

    Publication Year: 1990, Page(s):45 - 48
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    Work has been initiated within the American National Standards Committee X3T9.5 committee that developed the standards for the fiber distributed data interface (FDDI) on a new generation local area network. This network is targeted for operation at rates greater than 1 Gb/s. This follow-on work to FDDI is at an early stage. The current requirements for an FDDI follow-on network are presented, the ... View full abstract»

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  • Practical XNS internetworking at BLS

    Publication Year: 1990, Page(s):132 - 136
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    Both the positive and negative sides of a 3Com-based Xerox network system (XNS) are illustrated using US Bureau of Labor Statistics (BLS) experience with this type of implementation. A historical perspective of the BLS LAN, the rationale behind using XNS and 3Plus, the topology of the BLS internetwork, and its main design philosophy are discussed. A review of the LAN services that the BLS internet... View full abstract»

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  • An FDDI bridge for the high-speed multimedia backbone LAN

    Publication Year: 1990, Page(s):399 - 404
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    An architecture for a high-performance bridge that interconnects the fiber distributed data interface (FDDI) ring and the asynchronous transfer mode (ATM) technology based high-speed multimedia backbone LAN (MBLAN) is proposed. This bridge architecture enables the FDDI bridge to learn the source terminal address efficiently by selecting the error-free cell in which the source terminal address is c... View full abstract»

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  • Management of high speed networks with the simple network management protocol (SNMP)

    Publication Year: 1990, Page(s):195 - 199
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    The application of the simple network management protocol (SNMP) to the management of high-speed networks is described including systems based on the fiber distributed data interface (FDDI), switched multimegabit data service (SMDS), T1, and T3. A brief introduction to SNMP is given and the related standards are discussed for the structure of management information (SMI) and the management informa... View full abstract»

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  • An integrated corporate backbone providing packet and fixed-bandwidth services

    Publication Year: 1990, Page(s):33 - 38
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    A 100-Mb/s fiber-optic ring is discussed. It uses low-level time-division multiple access (TDMA) that permits division of the bandwidth into bands of 25 or 50 Mb/s capacity. These operate independently and may carry either Ethernet/802.3 frames or transparent T1 traffic. The system is examined in the context of integrated services networks, since it provides both packet-based and fixed-bandwidth s... View full abstract»

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  • Using redundancy in FDDI networks

    Publication Year: 1990, Page(s):261 - 267
    Cited by:  Papers (18)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    The connection management (CMT) of the fiber distributed data interface (FDDI) standard supports redundancy through a number of different network configurations. This redundancy may be used to increase the reliability of the network. These network configurations include using dual attachment stations in the dual ring, invoking the hold policy, using concentrator trees and using dual homing in the ... View full abstract»

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  • LAN traffic analysis and workload characterization

    Publication Year: 1990, Page(s):112 - 122
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    The results of a LAN traffic analysis are studied in order to characterize the workload in a typical Ethernet environment and to examine the mathematical modeling assumptions that are made regarding packet arrivals, packet size distributions, and user access patterns. These results show that the packet size distribution is application dependent and may not always follow a bimodal pattern. The over... View full abstract»

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