An End User QoS View of Buffer Sizing and Bandwidth Sharing Protocols

An End User QoS View of Buffer Sizing and Bandwidth Sharing Protocols

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Much attention has been given to design of network algorithms for the Internet, assuming a fixed number of end hosts. While this is a crucial first step, the analysis is in no way complete. The current design goals such as high-link utilization, low loss probability are useful only when the number of users in the network is fixed. With users arriving and departing, most of the current design goals lose importance. The only important performance metric would be the end user QoS. In our work, we study some aspects of network performance in a dynamic Internet, while maintaining our design objective to be high end user QoS. While studying queue management, we show that a flow-size aware smart scheduler at each router can significantly improve the overall flow completion times. We study the problem of sizing router buffers and show some pitfalls in some of the recent claims, which were based on a static network (network with a fixed number of end-users). From our analysis, it follows that small buffers can be used in high-speed routers only if the transmission protocol is extremely efficient even when the number of active flows in the Internet is small. Finally, we study one such transmission protocol that can potentially lead to very small buffers in the high-speed routers.The only important performance metric would be the end user QoS. In our work, we study some aspects of network performance in a dynamic Internet, while maintaining our design objective to be high end user QoS. While studying queue anbsp;...


Title:An End User QoS View of Buffer Sizing and Bandwidth Sharing Protocols
Author:
Publisher:ProQuest - 2008
ISBN-13:

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