Abstract
The paper describes a management-oriented model for cost-effective ‘data connectivity’ provisioning between the end-point entities of networked multimedia applications. The ‘connectivity’ service provider (SP) may maintain multiple policy-based protocol mechanisms that differ in the bandwidth allocation strategies exercised on transport networks and the extent of QoS guarantees enforced for application-level data flows. The required QoS is prescribed through a service interface, with the SP instantiating one of the policy modules with appropriate parameters to meet the QoS requirements. The model allows dynamic switching from one policy module to another, based on a cost associated with bandwidth usage by the network infrastructure for a given QoS offering. The management functions of SP monitor the changes and/or outages in network bandwidth in a dynamic setting, and map them onto connectivity costs incurred by the selected policy mechanism. To accommodate this end-to-end connectivity management, the SP employs an extended form of ’diffserv’-style traffic classification for flow aggregation purposes and ’intserv’-style resource control for bandwidth allocation purposes.
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Ravindran, K. (2005). End-to-End ‘Data Connectivity’ Management for Multimedia Networking. In: Dalmau Royo, J., Hasegawa, G. (eds) Management of Multimedia Networks and Services. MMNS 2005. Lecture Notes in Computer Science, vol 3754. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11572831_17
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DOI: https://doi.org/10.1007/11572831_17
Publisher Name: Springer, Berlin, Heidelberg
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