Xiangrong Cai

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We study the performance of Selective Acknowledgements with TCP over the UBR service category We examine various UBR drop policies TCP mechanisms and network configurations to recommend optimal parameters for TCP over UBR We discuss various TCP congestion control mechanisms compare their performance for LAN and WAN networks We describe the effect of(More)
We analyze the effect of providing a guaranteed rate to the UBR service class on the TCP performance over UBR We describe an enhancement to UBR called the guaranteed rate service Guaranteed rate service provides a minimum rate guarantee to the UBR traffic class We examine effect of strict priority VBR over UBR traffic and show that the UBR performance can(More)
AbstractAsynchronous transfer mode (ATM) networks must de ne multicast capabilities in order to e ciently support numerous applications, such as LAN emulation, Internet protocol (IP) multicasting, video conferencing and distributed applications. Several problems and issues arise in ATM multicasting, such as signaling, routing, connection admission control,(More)
We model World Wide Web (WWW) servers and clients running over an ATM network using the ABR service. The servers are modeled using a variant of the SPECweb96 [1] benchmark, while the clients are based on a model by Mah [2]. The traffic generated by this application is typically bursty, i.e., it has active and idle periods in transmission. Due to the fact(More)
Xiangrong CAI {cai@cis.ohio-state.edu} This is a survey paper on the performance of TCP over ATM ABR and UBR services. Using throughput and fairness as our performance metrics, the effect of the following factors to the performance of TCP over ATM ABR and UBR is discussed here: (1)the switch dropping policies when overflow happens(simple discard, Tail Drop,(More)
AbstractAsynchronous transfer mode (ATM) networks must de ne multicast capabilities in order to e ciently support numerous applications, such as LAN emulation, Internet protocol (IP) multicasting, video conferencing and distributed applications. Several problems and issues arise in ATM multicasting, such as signaling, routing, connection admission control,(More)
Abstract A number of frameworks have been developed for extending ABR tra c management algo rithms to support point to multipoint connections This contribution provides a comprehen sive analysis of the performance of ABR tra c management for point to multipoint connec tions under a variety of conditions The study demonstrates that the extension frameworks(More)
Asynchronous transfer mode (ATM) networks must deene multicast capabilities in order to eeciently support numerous applications, such as video conferencing and distributed applications, in addition to LAN emulation (LANE) and Internet protocol (IP) multicasting. Several problems and issues arise in ATM multicasting, such as signaling, routing , connection(More)
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