Common Contracts
1 similar null contracts
Ibrahim Khalil, Torsten BraunAugust 19th, 2001
We recently proposed a range-based Service Level Agreement (SLA) [15] approach and edge provisioning in DiffServ capa- ble Virtual Private Networks (VPNs) to customers that are un- able or unwilling to predict load between VPN endpoints exactly. With range-based SLAs customers specify their requirements as a range of quantitative values rather than a single one. Various suitable policies and algorithms dynamically provision and allo- cate resources at the edges for VPN connections. However, we also need to provision the interior nodes of a transit network to meet the assurances offered at the boundaries of the network. Although a deterministic guaranteed service (single quantitative value approach) provides the highest level of QoS guarantees, it leaves a significant portion of network resources on the aver- age unused. In this paper, we show that with range-based SLAs providers have the flexibility to allocate bandwidth that falls be- tween a lower and upper bound of the range only, a
