# [1991] Proceedings 16th Conference on Local Computer Networks

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Displaying Results 1 - 25 of 69
• ### Proceedings. 16th Conference on Local Computer Networks (Cat. No.91TH0397-0)

Publication Year: 1991
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• ### Comparison of DQDB and FDDI MAC access protocols

Publication Year: 1991, Page(s):84 - 95
Cited by:  Papers (1)
| | PDF (736 KB)

A comparison of the MAC access protocols of the IEEE 802.6 DQDB MAN and FDDI standards is presented. The results are derived from simulation studies, and verified by analytical approximations. The comparison is based on average packet access delays of nodes on DQDB and FDDI networks. By setting the available bandwidth of the two networks to be equal, the authors draw broad conclusions regarding th... View full abstract»

• ### Temperature-related changes in dielectric constant and dissipation factor of insulations increase attenuation in data cables used in building plenums

Publication Year: 1991, Page(s):74 - 79
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Local area network performance can deteriorate when high temperatures cause cable attenuation to increase. This problem can be prevented by careful selection of insulating materials. Dissipation factor and dielectric constant for FEP, PVC, and ECTFE were measured at frequencies from 1 kHz to 300 MHz at 20°C and 60°C. Increases in values for these properties can be related to increases in c... View full abstract»

• ### Performance study of the MetaRing with Gb/s links

Publication Year: 1991, Page(s):137 - 147
Cited by:  Papers (12)
| | PDF (572 KB)

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 t... View full abstract»

• ### Experience with the Abstract Syntax Notation One and the Basic Encoding Rules

Publication Year: 1991, Page(s):621 - 628
Cited by:  Papers (1)  |  Patents (5)
| | PDF (620 KB)

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... View full abstract»

• ### 16 Mb/s token ring on unshielded twisted pair cabling

Publication Year: 1991, Page(s):67 - 72
Cited by:  Patents (6)
| | PDF (408 KB)

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 technica... View full abstract»

• ### Optical distribution channel: an almost-all optical LAN based on the field-coding technique

Publication Year: 1991, Page(s):128 - 136
Cited by:  Papers (5)  |  Patents (2)
| | PDF (616 KB)

Providing a single user with a very high (gigabit per second) bandwidth is a challenge that the research community is trying to address these days. The paper describes a design of an almost-all' optical local-area network that is capable of providing Gbps directly to the user. The network design is based on the 802.6 topology, the field coding' technique (in which the header and the data fields ... View full abstract»

• ### Integrated Access to heterogeneous databases using forthcoming OSI standards

Publication Year: 1991, Page(s):611 - 620
Cited by:  Papers (1)  |  Patents (1)
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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 forthcomin... View full abstract»

• ### Jitter accumulation in token ring UTP networks

Publication Year: 1991, Page(s):52 - 66
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The paper discusses jitter accumulation in token ring unshielded twisted pair (UTP) networks. Topics of discussion include correlated jitter, near end crosstalk (NEXT), and the feasibility of supporting 100 m lobes of standard UTP (DIW) using two different types of active concentrators View full abstract»

• ### Ethernet performance under actual and simulated loads

Publication Year: 1991, Page(s):569 - 581
Cited by:  Papers (5)
| | PDF (1068 KB)

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 ... View full abstract»

• ### FDDI advanced concentrator architecture considerations

Publication Year: 1991, Page(s):356 - 361
| | PDF (476 KB)

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: p... View full abstract»

• ### Topological design of optically switched WDM networks

Publication Year: 1991, Page(s):114 - 127
Cited by:  Papers (7)
| | PDF (1028 KB)

The authors' research addresses some of the underlying design principles for a new class of metropolitan area networks (MANs) based on current lightwave technology, optically switched wavelength-division multiplexed (WDM) networks. A unique feature of WDM networks is their ability to create many different virtual topologies on top of the given physical topology. The authors describe problems assoc... View full abstract»

• ### Experiences with IFS: a distributed image filing system

Publication Year: 1991, Page(s):599 - 610
Cited by:  Patents (3)
| | PDF (980 KB)

The authors have designed and implemented a distributed image filing system. Users sitting at workstations can scan, store and retrieve images stored on optical disk at an image server. The system is built as a set of client and server processes performing specialized tasks. The system is network independent, in the sense that it runs on any of the local networks currently available on the market,... View full abstract»

• ### Interconnecting LANs and MANs to ATM

Publication Year: 1991, Page(s):259 - 270
Cited by:  Papers (6)
| | PDF (972 KB)

One of the challenges in the interconnection of LANs and MANs to ATM is the support of connectionless traffic in the ATM network. Several solutions have been proposed. A popular strategy seems to be that of maintaining a `thin' (i.e. low bandwidth) VP (virtual path) between each pair of gateways, and of requesting more bandwidth whenever a burst comes in from the LAN or MAN. Unfortunately, this st... View full abstract»

• ### Reliability analysis of the FDDI token ring

Publication Year: 1991, Page(s):41 - 51
Cited by:  Papers (7)
| | PDF (588 KB)

The paper develops reliability models and derives closed-form results for network reliability and network mean time to failure, including both node and link failures, for a very popular high speed LAN, the FDDI (fiber distributed data interface). It then extends the results to composite measures of performance and reliability View full abstract»

• ### On performance characteristics of LAN interfaces with PING/PONG buffers

Publication Year: 1991, Page(s):562 - 568
| | PDF (476 KB)

The authors consider a front end system consisting of a number of source stations generating LAN traffic; a queue to accommodate the transmission delays; and a number of ping/pong buffers, one for each LAN connection, served by the internal bus of the front-end processor. An incoming frame segment at a front end interface is assumed to be lost if there is no buffer available to store the segment. ... View full abstract»

• ### A two-level threshold-based traffic control scheme for ATM networks

Publication Year: 1991, Page(s):230 - 236
Cited by:  Papers (2)
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Emerging multimedia communication networks differ from transitional data networks in that they use very high speed transmission facilities and they carry various types of traffic with different performance requirements. So, effective communication protocols that encounter for several traffic and performance characteristics need to be developed in order to meet the required QOS (quality of service)... View full abstract»

• ### Overcoming bottlenecks in high-speed transport systems

Publication Year: 1991, Page(s):399 - 407
Cited by:  Papers (2)  |  Patents (20)
| | PDF (696 KB)

An architecture is presented for HSLAN/MAN controllers. This front-end processor system (FEP) is designed for operation in a CLN/LLC 1 environment, and implements the ISO OSI TP4 transport protocol. The FEP uses one or more commercial microprocessors with layers 2b-4 implemented in firmware. The protocol processors are supported by custom VLSI hardware such as a checksummer, DMA units, and process... View full abstract»

• ### FDDI network architectures, performance and futures

Publication Year: 1991, Page(s):343 - 345
| | PDF (808 KB)

Standards compliant FDDI interfaces have been available for between one and two years. As measured by the installed base, the authors believe that the technology is being accepted and deployed, with the number of nodes per network growing rapidly. In this paper, based on their experiences as a vendor of FDDI equipment, they first briefly recount certain features of FDDI. Next, they examine the rea... View full abstract»

• ### A simulation study on a high-speed slotted-ring access mechanism with dynamically adaptive slot sizes

Publication Year: 1991, Page(s):106 - 113
Cited by:  Papers (3)
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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 adap... View full abstract»

• ### A transputer based OSI-gateway for LAN-interconnection across ISDN

Publication Year: 1991, Page(s):158 - 165
Cited by:  Papers (1)  |  Patents (2)
| | PDF (780 KB)

Interconnections of remote local area networks (LANs) across public networks are of growing interest. The paper presents an OSI gateway to interconnect LANs across ISDN. The OSI connectionless network protocol (CLNP) supports interconnection of different subnetworks. The most important component of the gateway is an adaption layer to integrate ISDN into the gateway structure. The main task of this... View full abstract»

• ### Strategies for using multicasting to locate resources

Publication Year: 1991, Page(s):589 - 598
Cited by:  Papers (1)
| | PDF (720 KB)

One issue in distributed computing systems is how to locate and manage resource information that is inherently distributed within the computing environment. The article investigates the use of a technique called multicasting for location of such distributed information. It presents three different strategies for using the resources contained by a machine to dynamically compute the multicast addres... View full abstract»

• ### An expert integrator for communication networks management

Publication Year: 1991, Page(s):369 - 374
| | PDF (388 KB)

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 ea... View full abstract»

• ### A hybrid indoor data network with radio and wire: radio propagation measurements and performance evaluation in a Rayleigh channel

Publication Year: 1991, Page(s):276 - 281
Cited by:  Papers (3)
| | PDF (412 KB)

The authors propose a hybrid indoor data network system that uses radio as a transmission medium for the lower layer and uses conventional LAN for the upper, and its distributed dynamic channel assignment scheme in the 15th LCN and other conferences. In this paper indoor radio propagation measurements at 1.2 GHz are presented in order to develop a fading channel model. The system performance is an... View full abstract»

• ### Host interface design for ATM LANs

Publication Year: 1991, Page(s):247 - 258
Cited by:  Papers (20)  |  Patents (2)
| | PDF (1048 KB)

ATM (asynchronous transfer mode) is an international telecommunications standard designed for broadband integrated services; it is also well-suited for use within local-area networks. ATM LANs can provide the networking support needed for multimedia communication at rates of 100 Mbits/sec and higher. The authors first analyze the protocol processing required to handle ATM communication. Based on t... View full abstract»