Directory Based Composite Routing and Scheduling for Dynamic Multimedia Environments
IPDPS '01 Proceedings of the 15th International Parallel & Distributed Processing Symposium
Resource Allocation and Admission Control Styles in QoS DiffServ Networks
QoS-IP '01 Proceedings of the International Workshop on Quality of Service in Multiservice IP Networks
Routing and rate allocation in rate-based multi-class networks
Performance Evaluation
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A critical functional component of quality-of-service (QoS) deployment in packet-switched networks is QoS-based routing. In this paper, we present a routing solution for guaranteed quality-of-service connections in integrated services packet networks (ISPN)-the future QoS-capable Internet proposed by the IETF. The problem is in essence a path finding problem with both end-to-end delay and per-node buffer constraints, in networks with heterogeneous intermediate switching nodes. We present a polynomial time algorithm using a capacity plane decomposition technique combined with a per-node constrained shortest path algorithm. We further propose an efficient route computation architecture, based on a novel metric-separation approach, to a slightly restricted version of the problem. The strategy is somewhat similar to "route caching", but in a new and broader sense.