BMSN and SpiderNet as large scale ATM switch interconnection architectures.

by Kin-Yu Cheung.Thesis (M.Phil.)--Chinese University of Hong Kong, 1997.Includes bibliographical references (leaves 64-[68]).Chapter 1 --- Introduction --- p.1Chapter 1.1 --- Multistage Interconnection Architectures --- p.2Chapter 1.2 --- Interconnection Topologies --- p.4Chapter 1.3 --- Design of Switch Module-An Example of Multichannel Switch --- p.7Chapter 1.4 --- Organization --- p.8Chapter 1.5 --- Publication --- p.9Chapter 2 --- BMSN and SpiderNet: Two Large Scale ATM Switches --- p.13Chapter 2.1 --- Introduction --- p.13Chapter 2.2 --- Architecture --- p.14Chapter 2.2.1 --- Topology --- p.14Chapter 2.2.2 --- Switch Modules --- p.15Chapter 2.3 --- Routing --- p.17Chapter 2.3.1 --- VP/VC Routing --- p.18Chapter 2.3.2 --- VP/VC Routing Control --- p.22Chapter 2.3.3 --- Cell Routing --- p.23Chapter 2.3.4 --- Alternate Path Routing for Fault Tolerance --- p.24Chapter 2.4 --- SpiderNet --- p.25Chapter 2.5 --- Performance and Discussion --- p.26Chapter 2.5.1 --- BMSN vs SpiderNet --- p.26Chapter 2.5.2 --- Network Capacity --- p.29Chapter 2.6 --- Concluding Remarks --- p.30Chapter 3 --- Multichannel ATM Switching --- p.39Chapter 3.1 --- Introduction --- p.39Chapter 3.2 --- Switch Design --- p.40Chapter 3.3 --- Channel Allocation Algorithms --- p.41Chapter 3.3.1 --- VC-Based String Round Robin (VCB-SRR) Algorithm --- p.41Chapter 3.3.2 --- Implementation of the VCB-SRR Algorithm --- p.43Chapter 3.3.3 --- Channel Group Based Round Robin (CGB-RR) Algorithm --- p.50Chapter 3.3.4 --- Implementation of the CGB-RR Algorithm --- p.51Chapter 3.4 --- Performance and Discussion --- p.53Chapter 3.5 --- Concluding Remarks --- p.57Chapter 4 --- Conclusion --- p.62Bibliography --- p.6

Future benefits and applications of intelligent on-board processing to VSAT services

The trends and roles of VSAT services in the year 2010 time frame are examined based on an overall network and service model for that period. An estimate of the VSAT traffic is then made and the service and general network requirements are identified. In order to accommodate these traffic needs, four satellite VSAT architectures based on the use of fixed or scanning multibeam antennas in conjunction with IF switching or onboard regeneration and baseband processing are suggested. The performance of each of these architectures is assessed and the key enabling technologies are identified

A formalism for describing and simulating systems with interacting components.

This thesis addresses the problem of descriptive complexity presented by systems involving a high number of interacting components. It investigates the evaluation measure of performability and its application to such systems. A new description and simulation language, ICE and it's application to performability modelling is presented. ICE (Interacting ComponEnts) is based upon an earlier description language which was first proposed for defining reliability problems. ICE is declarative in style and has a limited number of keywords. The ethos in the development of the language has been to provide an intuitive formalism with a powerful descriptive space. The full syntax of the language is presented with discussion as to its philosophy. The implementation of a discrete event simulator using an ICE interface is described, with use being made of examples to illustrate the functionality of the code and the semantics of the language. Random numbers are used to provide the required stochastic behaviour within the simulator. The behaviour of an industry standard generator within the simulator and different methods of number allocation are shown. A new generator is proposed that is a development of a fast hardware shift register generator and is demonstrated to possess good statistical properties and operational speed. For the purpose of providing a rigorous description of the language and clarification of its semantics, a computational model is developed using the formalism of extended coloured Petri nets. This model also gives an indication of the language's descriptive power relative to that of a recognised and well developed technique. Some recognised temporal and structural problems of system event modelling are identified. and ICE solutions given. The growing research area of ATM communication networks is introduced and a sophisticated top down model of an ATM switch presented. This model is simulated and interesting results are given. A generic ICE framework for performability modelling is developed and demonstrated. This is considered as a positive contribution to the general field of performability research

Dynamic bandwidth allocation in ATM networks

Includes bibliographical references.This thesis investigates bandwidth allocation methodologies to transport new emerging bursty traffic types in ATM networks. However, existing ATM traffic management solutions are not readily able to handle the inevitable problem of congestion as result of the bursty traffic from the new emerging services. This research basically addresses bandwidth allocation issues for bursty traffic by proposing and exploring the concept of dynamic bandwidth allocation and comparing it to the traditional static bandwidth allocation schemes

Fourth NASA Goddard Conference on Mass Storage Systems and Technologies

This report contains copies of all those technical papers received in time for publication just prior to the Fourth Goddard Conference on Mass Storage and Technologies, held March 28-30, 1995, at the University of Maryland, University College Conference Center, in College Park, Maryland. This series of conferences continues to serve as a unique medium for the exchange of information on topics relating to the ingestion and management of substantial amounts of data and the attendant problems involved. This year's discussion topics include new storage technology, stability of recorded media, performance studies, storage system solutions, the National Information infrastructure (Infobahn), the future for storage technology, and lessons learned from various projects. There also will be an update on the IEEE Mass Storage System Reference Model Version 5, on which the final vote was taken in July 1994

1995 BRAC Commission

Naval Research Lab: Special Facilities and Equipment Capability Data Call. Tabular data, memos, documents. Box 178, L-110