Domains: a new approach to distributed system management

Robinson, Danielle C.; Sloman, Morris

doi:10.1109/ftdcs.1988.26694

Cited by 6 publications

(7 citation statements)

References 13 publications

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“…An interesting question is how might one prove the correctness of the two rules under all conditions? We note the following pre and post conditions hold: (σ SrcAddr (SacReq ×U serIP )×AppSpec)×P ermit) (12) …”

Section: Resultsmentioning

confidence: 99%

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Policy Interoperability and Network Autonomics

Magrath

Braun

Cuervo³

2005

Lecture Notes in Computer Science

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Abstract. Autonomic behaviours in network operations will alleviate much of the labour intensive and error prone interventions of today's complex networks. The Service Provider must be able to manage the infrastructure and services at an abstract level, focusing on what the desired behaviour should be rather than how it might be specifically achieved. Policy-Based Network Management (Pbnm) appears as one of the leading mechanisms to describe desired behaviours and abstract the programmability of an autonomic network infrastructure to the Service Provider. For massive-scale and complex networks, the current understanding of the Higher Level to Lower Level (HL→LL) refinement process commonly used in Pbnm today is not completely effective. One problem encountered is the need to provide a bind mechanism between Higher Level and Lower Level policy specifications such that cross-layer policy requests in the policy continuum can be made by lower policy layers in a dynamic policy refinement cycle (LL→HL→LL). In this paper, we illustrate the problem with a policy-based simple admission control (SAC) application. We then show that policy specifications with a join operator ( ) simplify the SAC specification. We also investigate the performance considerations of this enhancement in Internet size applications. Our future goal is to provide a policy inference engine that can support complex specifications appropriate for Pbnm systems that support autonomic behaviours in large networks, made of Network elements with realistic memory and processing constraints.

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Section: Resultsmentioning

confidence: 99%

“…al. also add to the concepts of policy and Pbnm by incorporating the concept of "Domains" into the semantics ( [11,12,13]). Domains are a collection of managed objects that are under one administrative control and are related by "subject".…”

Section: Policy Abstractionmentioning

confidence: 99%

Policy Interoperability and Network Autonomics

Magrath

Braun

Cuervo³

2005

Lecture Notes in Computer Science

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“…In this perspective, the recognition of policy as a management paradigm can be traced back to 1988 with the PhD works on domains for policy-based management of D.C. Robinson [24]- [26], J.D. Moffet [27]- [29], and K. Twidle [30], [31] under the supervision of M. Sloman.…”

Section: Policy As a Management Paradigmmentioning

confidence: 99%

“…They require encryption keys to be associated to each security domain, with all communication between participating processes encrypted using that key. Hardware encryption may then be required to achieve acceptable performance [25]. An example implementation of domains in structuring access control policy based on capabilities is described in [24] and one based on access control lists is described in [30].…”

Section: Policy As a Management Paradigmmentioning

confidence: 99%

“…Moffet [27]- [29], and K. Twidle [30], [31] under the supervision of M. Sloman. D.C. Robinson and M. Sloman [25] view Management policy to be the sets of rules for achieving the scalable management of a distributed computing system, as well as achieving the sub-objectives of optimizing resource usage, cost, revenue, and performance. The requirements of scalability, flexibility, uniformity, and verifiability are believed to be achievable through policies and management domains.…”

Section: Policy As a Management Paradigmmentioning

confidence: 99%

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Policy-based Management: A Historical Perspective

2007

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This paper traces the history of policy-based management and how it evolved from the first security models dating back to the late 1960's until today's more elaborate frameworks, languages, and policy-based management tools. The focus will be on providing a synthesized chronicle of the evolution of ideas and research trends rather than on surveying the various specification formalisms, frameworks, and application domains of policy-based management.

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Massively Concurrent Computer: the configuration problem

Gerber¹

COMPEURO'90: Proceedings of the 1990 IEEE International Conference on Computer Systems and Software Engineering@m_Systems Engin

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Low-cost supercomputer performance can be achieved through parallelism. Parallel computers with fixed nodes are easy to build but the mapping of software onto such systems is computationally very expensive. By uslng reconfigureable nodes the complexity of the user software is reduced immensely. This however produces the problem of guaranteeing a completely reconfigureable system that can connect any node to any node under all circumstances. The MC2/64 machine is a distributed parallel machine using the lnmos Transputer and based on the concept of reconfigureable nodes. This paper describes the architecture, configuration and the system software of MC2/64. The ever increasing demand for microcomputer power is being satisfied at this moment by two areas of technological development namely high-speed RlSC technology and parallel processing. RlSC technology offers the promise of systems with impressive performance and it requires little change in the way the software is developed, but the technology is reaching its performance limits. Parallel processing promises systems whose computing power is limited only by the resources of the system designer and the ingenuity of the programmer! By using RlSC in parallel we can achieve remarkable microcomputer performance at a much lower cost.The lnmos transputer is a high-performance 32-bit (almost) RlSC processor with a unique communications-based architecture designed for parallel processing systems using a distributed memory, message-passing model. Transputers communicate through links. The choice of point-to-point communication links means that a system can be constructed from an arbitrary number of transputers. As the number of transputers in the system increases, the total processing power, memory bandwidth and communication bandwidth of the system grow proportionally.The Massively Concurrent Computer (MC2) project was initiated to exploit the new technological developments around parallel processing and build a multi-user, low-cost, high-performance parallel computer centered around the transputer and based on the concept of reconfigureable transputer nodes.CH2867-0/90/0000/0097$01 .OO 0 1990 IEEE 97The first phase of the MC2 project involved the building and testing of the initial hardware. For the second phase a single user system consisting of up to sixteen transputers in a completely reconfigureable cluster was completed. The intention of the third phase of the pro'ect are multi-user 64 using the existing hardware and clusters.Envisaged completion of this phase is end of April 1991. The MC2/64 machine has actually been completed and two experimental systems are currently in use. This paper will be divided into two sections. The first section will give an overview of the MC2/64 machine architecture and a description of the techniques that are used to configure the machine. The second section will describe the system software as well as the design methodology used to develop the system software. and 256 processor systems (the MC tr /64 and MC2/256) MC2/64 ARCHITECTURE ...

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Domains: a new approach to distributed system management

Cited by 6 publications

References 13 publications

Policy Interoperability and Network Autonomics

Policy Interoperability and Network Autonomics

Policy-based Management: A Historical Perspective

Massively Concurrent Computer: the configuration problem

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