Abstract
Policies may be required in various scenarios during a multimedia flow set up, for example, during session setup, policy decisions must be provided to ensure that the session being requested lie within the bounds of the service profile established for the requesting host. Similarly, when a host requests resources to provide a certain QoS for a packet flow, policies may be provided to ensure that the required resources lie within the bounds of the resource profile established for the requesting host. The policy framework at the IETF [1] is focused on the resource reservation issues and thus provided a centralized approach for the policy decision function. This paper attempts to highlight the various scenarios in a multimedia flow establishment that lead to a distributed approach for policy decision-making. The paper also discusses the required characteristics of an interface between the policy decision functions residing in different administrative domains.
The original version of this chapter was revised: The copyright line was incorrect. This has been corrected. The Erratum to this chapter is available at DOI: 10.1007/978-0-387-35620-4_43
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R.Yavatkar et al., “A framework for Policy-based Admission control”, IETF RFC 2753, January 2000.
L-N. Hamer, B. Gage, “Framework for session setup with media authorization”, Internet-Draft, draft-ietf-rap-session-auth-03.txt, June 2002, Work in progress.
C. de Laat et al, “Generic AAA Architecture”, IETF RFC 2903, August 2000.
J. Vollbrecht et al., “AAA Authorization Framework”, RFC 2904, August 2000.
Y. Sunir et.al., “Policy QoS Information Model”, draft-ietf-policy-qos-info-model-04.txt, November 2001, Work In Progress.
D. Durham et al, “ The COPS Protocol”, IETF RFC 2748, January 2000.
K. Chan et al., “COPS Usage for Policy Provisioning”, RFC 3084, March 2001.
Rosenberg et al., RFC 3261, “SIP: Session Initiation Protocol”, June 2002.
Y. Bernet et al, “A Framework for Integrated Services Operation over Diffsery Networks”, IETF RFC 2998, November 2000.
Policy Framework WG.http://www.ietf.org/html.charters/policy-charter.html
T.M.T. Nguyen et al., “COPS Usage for SLS negotiation (COPS-SLS)”, IETF Internet-Draft, draft-nguyen-rap-cops-sls-03.txt, July 2002, Work in progress.
GPP TS 23.207: “End-to-End QoS Concept and Architecture”, Release 5
GPP TS 29.207: “Policy control over Go interface”,Release 5
GPP TS 23.228: “IP Multimedia (IM) Subsystem - Stage 2”, Release 5
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© 2003 IFIP International Federation for Information Processing
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Mahmood, H.S., Hamer, L.N. (2003). A Distributed Policy Approach in Support of Multimedia Session Establishment. In: Gaïti, D., Boukhatem, N. (eds) Network Control and Engineering for QoS, Security and Mobility. NetCon 2002. IFIP — The International Federation for Information Processing, vol 107. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35620-4_19
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DOI: https://doi.org/10.1007/978-0-387-35620-4_19
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