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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Bandara, A. Lupu, E. Russo, A. Dulay, N. Sloman, M. Flegkas, P. Charalambides, M. Pavlou, G. |
| Copyright Year | 2005 |
| Description | Author affiliation: Imperial Coll. London, UK (Bandara, A.; Lupu, E.; Russo, A.; Dulay, N.; Sloman, M.) |
| Abstract | Policy-based management provides the ability to dynamically re-configure DiffServ networks such that desired quality of service (QoS) goals are achieved. This includes network provisioning decisions, performing admission control, and adapting bandwidth allocation dynamically. QoS management aims to satisfy the service level agreements (SLAs) contracted by the provider and therefore QoS policies are derived from SLA specifications and the provider's business goals. This policy refinement is usually performed manually with no means of verifying that the policies written are supported by the network devices and actually achieve the desired QoS goals. Tool support is lacking and policy refinement has rarely been addressed in the literature. This paper extends our previous approach to policy refinement and shows how to apply it to the domain of DiffServ QoS management. We make use of goal elaboration and abductive reasoning to derive strategies that achieves a given high-level goal. By combining these strategies with events and constraints, we show how policies can be refined, and what tool support can be provided for the refinement process using examples from the QoS management domain. However, the approach presented here can be used in other application domains such as storage area networks or security management. |
| Starting Page | 469 |
| Ending Page | 482 |
| File Size | 628186 |
| Page Count | 14 |
| File Format | |
| ISBN | 0780390873 |
| DOI | 10.1109/INM.2005.1440817 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-05-19 |
| Publisher Place | France |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Diffserv networks Quality of service Quality management Admission control Traffic control Concrete Educational institutions Channel allocation Storage area networks Telecommunication traffic |
| Content Type | Text |
| Resource Type | Article |
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