Journal ArticleDOI
The COSIE communications subsystem: support for distributed office applications
Douglas B. Terry,Sten Andler +1 more
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The main emphasis in the design of the COSIE Communication Subsystem was on presenting simple mechanisms that allow more general policies and protocols to be explored.Abstract:
Contemporary distributed office systems rely heavily on communication between workstations, file servers, printers, and other computerized components. The COSIE Communication Subsystem has been developed for an office system internetwork consisting of local networks of varying technologies. The communication facilities provide for the transmission of self-contained messages to mailboxes, which are referenced by capabilities and may be shared. A generalized method for pairing requests with responses supports a variety of communication paradigms, while a flexible routing algorithm permits diverse network topologies. The main emphasis in the design of the COSIE Communication Subsystem was on presenting simple mechanisms that allow more general policies and protocols to be explored.read more
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Object management in distributed information systems
Peter Lyngbaek,Dennis McLeod +1 more
TL;DR: In this article, a simple model for object sharing in distributed office information systems is described, which provides a small set of operators for object definition, manipulation, and retrieval in a distributed environment, modeled as a logical network of workstations.
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Object management in distributed information systems
Peter Lyngbaek,Dennis McLeod +1 more
TL;DR: A simple model for object sharing in distributed office information systems provides a small set of operators for object definition, manipulation, and retrieval in a distributed environment, modeled as a logical network of workstations.
Book
Timer-based mechanisms in reliable transport protocol connection management
TL;DR: In this article, the authors discuss the need for timer-based mechanisms to achieve reliable connection management in transport protocols designed to operate in a general network (datagram and internetwork) environment where packets can get lost, duplicated or missequenced.
Journal ArticleDOI
Distributed environment: a conceptual framework using objects
TL;DR: A coarse-grained algorithm for active and procedural object distribution is developed in order to endow the individual workstations with as much autonomy as possible and to enable the model to transit one state to another with a minimum level of perturbation.
References
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Proceedings Article
End-to-End Arguments in System Design.
TL;DR: A design principle is presented that helps guide placement of functions among the modules of a distributed computer system and suggests that functions placed at low levels of a system may be redundant or of little value when compared with the cost of providing them at that low level.
Journal ArticleDOI
OSI Reference Model--The ISO Model of Architecture for Open Systems Interconnection
TL;DR: In this article, the OSI Reference Model was also recognized by CCITT Rapporteur's Group on "Layered Model for Public Data Network Services." This paper presents the model of architecture for Open Systems Interconnection developed by SC16.
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OSI reference model—The ISO model of architecture for open systems interconnection
TL;DR: This paper presents the model of architecture for Open Systems Interconnection developed by SC16, and some indications are also given on the initial set of protocols which will-likely be developed in this OSI Reference Model.
Journal ArticleDOI
A Minimum Delay Routing Algorithm Using Distributed Computation
TL;DR: A new global convergence theorem for noncontinuous iteration algorithms is developed that converges, with successive updates of the routing tables, to the minimum average delay over all routing assignments.
Journal ArticleDOI
Capability-based addressing
TL;DR: A computer using capability-based addressing may be substantially superior to present systems on the basis of protection, simplicity of programming conventions, and efficient implementation.