End-to-end QoS bounds for RTP-based service subnetworks

Jonathan M. Pitts; John A. Schormans

doi:10.1117/12.368327

5 November 1999 End-to-end QoS bounds for RTP-based service subnetworks

Jonathan M. Pitts, John A. Schormans

Proceedings Volume 3842, Internet II: Quality of Service and Future Directions; (1999) https://doi.org/10.1117/12.368327
Event: Photonics East '99, 1999, Boston, MA, United States

Abstract

With the increasing focus on traffic prioritization to support voice-data integration in corporate intranets, practical methods are needed to dimension and manage cost efficient service partitions. This is particularly important for the provisioning of real time, delay sensitive services such as telephony and voice/video conferencing applications. Typically these can be provided over RTP/UDP/IP or ATM DBR/SBR bearers but, irrespective of the specific networking technology, the switches or routers need to implement some form of virtual buffer management with queue scheduling mechanisms to provide partitioning. The key requirement is for operators of such networks to be able to dimension the partitions and virtual buffer sizes for efficient resource utilization, instead of simply over-dimensioning. This paper draws on recent work at Queen Mary, University of London, supported by the UK Engineering and Physical Sciences Research Council, to investigate approximate analytical methods for assessing end to end delay variation bounds in cell based and packet based networks.

Citation Download Citation

Jonathan M. Pitts and John A. Schormans "End-to-end QoS bounds for RTP-based service subnetworks", Proc. SPIE 3842, Internet II: Quality of Service and Future Directions, (5 November 1999); https://doi.org/10.1117/12.368327

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