Optimal Admission Controllers for Service Level Agreements in Enterprise Networks

摘要

The transmission of multimedia streams with a particular and guaranteed level of QoS (Quality of Service) from source to destination is a major challenge in multimedia communications over IP networks. In this paper, we introduce a generalized, flexible form of the traditional SLA (Service Level Agreement) between users and network owners, for the transmission of a multimedia stream with several choices of QoS level. Admission control and adaptation of the SLAs to optimize a certain system performance criterion (e.g., maximum profit) while maintaining all QoS guarantees is defined as the SLA admission control problem. We present the design and implementation of an optimal SLA admission control system.