A resource management architecture over differentiated services domains for guarantee of bandwidth, delay and jitter

Network-based applications like video and voice over IP (VoIP), require guarantee of end-to-end QoS. The guarantee of end-to-end QoS requires an efficient resource management mechanism that can reserve/control resources like bandwidth, delay and jitter according to a policy for immediate and future resource utilization. Only a few resource management architectures called the resource manager (RM) have been implemented till today but all of them manage only the bandwidth in a network. We propose ENICOM´s policy based resource manager (PREM) to address the above issues. PREM provides a set of useful API to make, cancel and change resource reservations and it can manage not only bandwidth but also delay and jitter which is possible mainly due to a highly efficient algorithm called the resource tracker (RTK). The RTK tracks resource reservation and availability in time using timeslices. We describe PREM and it´s various components, which enable it to provide guarantee of end-to-end QoS in terms of bandwidth, delay and jitter