Telecommunications network design algorithms
Telecommunications network design algorithms
On the self-similar nature of Ethernet traffic (extended version)
IEEE/ACM Transactions on Networking (TON)
Wide-area traffic: the failure of Poisson modeling
SIGCOMM '94 Proceedings of the conference on Communications architectures, protocols and applications
High-speed networks: TCP/IP and ATM design principles
High-speed networks: TCP/IP and ATM design principles
Self-similarity in World Wide Web traffic: evidence and possible causes
IEEE/ACM Transactions on Networking (TON)
MPLS and traffic engineering in IP networks
IEEE Communications Magazine
NetScope: traffic engineering for IP networks
IEEE Network: The Magazine of Global Internetworking
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This paper contributes to understanding of how Quality of Service (QoS) can be optimised in Autonomous System (AS) networks using Open Shortest Path First (OSPF) routing. We assume that, although guaranteed QoS can not be provided, network wide performance can be optimised in a manner which significantly improves QoS. We particularly focus on devising a network performance objective, which is convenient for the network optimization process, while closely representing QoS experience for end users. Our results show that, firstly, network-wide performance can be significantly improved by optimizing OSPF weights. Secondly, the resulting optimal set of weights and network performance depends very much on the definition of the optimization objective function. We argue that min max utilisation is an appropriate function for heavily loaded network, while end to end delay is more appropriate optimization objective for lightly loaded condition, at which most of the backbones are operating.