This paper introduces a reliability conscious Service Level Agreement (SLA) based admission controller for data networks. Previous research on optimal SLA admission control is discussed, especially the modeling of the admission control problem as a type of Knapsack problem and control architectures developed on this principle. To provide provisions for reliability, the basic SLA specifying a user's desired Quality of Service (QoS) is extended to include reliability requirements. To provide for these, an existing SLA-based admission controller is extended to calculate multiple alternate paths for each session and perform resource reservation on all these paths.
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