Policy conflict analysis for DiffServ quality of service management

被引：18

作者：

Charalambides, Marinos ^{[1
]}

Flegkas, Paris ^{[2
]}

Pavlou, George ^{[1
]}

Rubio-Loyola, Javier ^{[3
]}

Bandara, Arosha ^{[4
]}

Lupu, Emil ^{[5
]}

Russo, Alessandra ^{[5
]}

Dulay, Naranker ^{[5
]}

Sloman, Morris ^{[5
]}

机构：

[1] Department of Electronic and Electrical Engineering, University College London

[2] Department of Computer and Communication Engineering, University of Thessaly

[3] Department of Communication Technologies, Universitat Pompeu Fabra

[4] Department of Computing, Open University, Milton Keynes

[5] Department of Computing, Imperial College London

来源：

IEEE Transactions on Network and Service Management | 2009年 / 6卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

Conflict detection; Dynamic conflict resolution; QoS management policies;

D O I：

10.1109/TNSM.2009.090302

中图分类号：

学科分类号：

摘要：

Policy-based management provides the ability to (re-)configure differentiated services networks so that desired Quality of Service (QoS) goals are achieved. This requires implementing network provisioning decisions, performing admission control, and adapting bandwidth allocation to emerging traffic demands. A policy-based approach facilitates flexibility and adaptability as policies can be dynamically changed without modifying the underlying implementation. However, inconsistencies may arise in the policy specification. In this paper we provide a comprehensive set of QoS policies for managing Differentiated Services (DiffServ) networks, and classify the possible conflicts that can arise between them. We demonstrate the use of Event Calculus and formal reasoning for the analysis of both static and dynamic conflicts in a semi-automated fashion. In addition, we present a conflict analysis tool that provides network administrators with a user-friendly environment for determining and resolving potential inconsistencies. The tool has been extensively tested with large numbers of policies over a range of conflict types. © 2009 IEEE.

引用

页码：15 / 30

页数：15

共 43 条

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