Journal of High Speed Networks - Volume 1, issue 1

Authors: Sidhu, Deepinder P.

Article Type: Other

DOI: 10.3233/JHS-1992-1101

Citation: Journal of High Speed Networks, vol. 1, no. 1, pp. v-vi, 1992

Authors: Kahn, B.

Article Type: Other

DOI: 10.3233/JHS-1992-1102

Citation: Journal of High Speed Networks, vol. 1, no. 1, pp. vii-vii, 1992

Authors: Gitlin, R.D. | London, T.B.

Article Type: Research Article

Abstract: This paper describes the motivation, architecture, initial applications, and objectives for LuckyNet, an AT&T Bell Labs gigabit research network. Building upon the B-ISDN infrastructure of SONET transport and the ATM packet protocol, LuckyNet will provide a fertile testbed for investigating: broadband applications, network architectures, gigabit packet switches and LANs, high-throughput protocols and interfaces, and network services and operations (including addressing, routing, signaling, control and security). LuckyNet is a heterogeneous network that has as one of its major objectives the demonstration that diverse classes of user traffic (i.e., video, voice, data, and image), as well as control and management information …can efficiently utilize a single ATM infrastructure. Another goal is to provide users with gigabit-per-second network access. Initial applications provide 155 Mbps access and include video conferencing, document retrievaL low-latency processor-sharing, and Ethernet interconnection. We expect that this will be followed by FDDI interconnection and multimedia conferencing, with the long-range goal of identifying and supporting gigabit-per-second applications. Extensions to other locations and interworking with NREN sites (e.g., AT&T Bell Labs XUNET II) are anticipated. The network already links the Holmdel and Crawford Hill Laboratories (via optical fiber) and the Crawford Hill and Murray Hill Laboratories (via microwave radio) at 2.5 Gbps. Show more

Keywords: Broadband Networks, Gigabit Networks, Broadband Signalling and Control, Advanced Services/Applications

DOI: 10.3233/JHS-1992-1103

Citation: Journal of High Speed Networks, vol. 1, no. 1, pp. 1-47, 1992

Authors: Ransom, M. Niel

Article Type: Research Article

Abstract: This paper presents an overview of the VISTAnet gigabit testbed. VISTAnet is one of a number of “gigabit” test beds organized by the Corporation for National Research Initiatives. The initial application of VISTAnet will be interactive 3-dimensional (3-D) rendering of medical images for radiation treatment therapy planning for cancer patients. The testbed will link a Cray Y-MP supercomputer with a specialized, massively parallel, image processing system and a graphical workstation to form what we expect to be the fastest visualization system in the world. One of the goals of VISTAnet is to show that networks based on rapidly emerging public …network standards can satisfy the goals of an envisioned National Research and Education Network (NREN). Hence this network is being designed such that it will be substantially compliant with emerging Broadband ISDN standards. Remote computing systems will be interconnected through a broadband network combining broadband Asynchronous Transfer Mode (ATM) and circuit switching systems. The network will feature interfaces operating at 622 Mb/s and a backbone fiber link operating at 2.4 Gb/s. Current plans are for the network to begin its operational phase in the middle of 1992. Show more

Keywords: ATM, Broadband ISDN, Medical Images, Gigabit Networking

DOI: 10.3233/JHS-1992-1104

Citation: Journal of High Speed Networks, vol. 1, no. 1, pp. 49-60, 1992

Authors: Lu, Jonathan C. | Kleinrock, Leonard

Article Type: Research Article

Abstract: Wavelength division multiple access (WDMA) provides a way to tap the huge bandwidth of an optical fiber by simultaneously operating on multiple channels at different wavelengths, with each channel running at the speed of the electronics of an end user station. This paper presents a mathematical model which approximates WDMA networks with general hardware configurations and arbitrary traffic patterns. Packets which cannot be transmitted upon arrival are blocked (i.e., lost) immediately. We first study the case of a uniform traffic matrix and observe that, when the number of wavelengths is fewer than the number of stations, it is better to …have both tunable transmitters and tunable receivers, rather than having only either one of them tunable. Furthermore, we find that only a small number of tunable transmitters and receivers per station is needed to produce performance close to the upper bound. We then construct a general traffic model and propose an iterative solution procedure. A case of hot-spot traffic is studied using this model. We find that adding more resources to the hot-spot node will help improve its performance, but only to a limited extent determined by the traffic imbalance. The match between the model and simulation results are shown to be excellent. Show more

Keywords: Wavelength Division Multiplexing, Performance Analysis, Fiber Optics

DOI: 10.3233/JHS-1992-1105

Citation: Journal of High Speed Networks, vol. 1, no. 1, pp. 61-77, 1992

Authors: Ferrari, Domenico

Article Type: Research Article

Abstract: Can end-to-end communication performance be guaranteed by a packet-switching internetwork? This paper addresses the question by examining the feasibility of extending to an internetwork the Tenet approach to real-time communication service design. The conditions to be satisfied by an internetwork so that the approach can be extended to it are investigated. These include conditions for the scheduling discipline to be used in the nodes of the internetwork. The original Tenet approach to real-time communication applies to a network consisting of hosts, homogeneous nodes (or switches), and physical links connecting nodes and hosts in an arbitrary topology. The nodes are …store-and-forward, and are scheduled by a multi-class version of the Earliest Due Date deadline-based policy. The discussion presented in this paper results in extendibility conditions that are quite broad; hence, the Tenet approach may be used to establish and run real-time channels in a vast class of internetworks. A case study is also discussed, involving a simple network, whose nodes are scheduled by FCFS-based disciplines, and the connection of such a network to an internetwork with deadline-based and hierarchical round robin scheduling. Show more

Keywords: Real-Time, Performance Guarantees, Internetworks

DOI: 10.3233/JHS-1992-1106

Citation: Journal of High Speed Networks, vol. 1, no. 1, pp. 79-103, 1992