BDIM-based optimal design of videoconferencing service infrastructure in Multi-SLA environments

Authors:
Hao Shi;Zhiqiang Zhan;Dan Wang
Affiliations:
State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, China;State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, China;State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, China
Venue:
APNOMS'09 Proceedings of the 12th Asia-Pacific network operations and management conference on Management enabling the future internet for changing business and new computing services
Year:
2009

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Abstract

For a videoconferencing service provider, the infrastructure design in multi-SLA (Service Level Agreement) environments plays a pivotal role in the maximization of business profits. Traditional design methods usually concern costs exclusively but overlook financial losses. In this work, an optimal design methodology is proposed using Business-Driven IT Management (BDIM) concepts, whereby numbers of servers, routers and link bandwidth can be determined to minimize the sum of infrastructure costs and business losses. This method captures the linkage between infrastructure and business impacts by modeling availability, multi-SLA loads and transmission delay. A numerical example is discussed to demonstrate the value of the approach. A further conclusion is that the optimal design can be used for dynamic service provisioning.