Experimental TCP Performance Evaluation on Diffserv AF PHBs over ATM SBR Service

被引:0
作者
Shigehiro Ano
Toru Hasegawa
Nicolas Decre
机构
[1] KDDI R&D Laboratories Inc.,
[2] Ecole Nationale Supérieure des Télécommunications,undefined
来源
Telecommunication Systems | 2002年 / 19卷
关键词
diffserv; AF PHB; performance evaluation; ATM SBR3; TCP; QoS;
D O I
暂无
中图分类号
学科分类号
摘要
In these days, IP network customers become sensitive to the QoS guarantee provided by the network. Amongst many QoS guarantee schemes, Diffserv (Differentiated Services) is the one of the most practical candidates for the next generation IP networks. Under these circumstances, the commercial network venders have already provided the Diffserv routers that support EF (Expedited Forwarding) PHB (Per Hop Behavior). However, AF (Assured Forwarding) PHB in Diffserv still has not been provided by commercial routers. Therefore, it is a realistic solution that SBR3 (Statistical Bit Rate 3) of ATM emulates AF PHB, but it is not clear whether TCP traffic over AF PHB emulated by ATM is differentiated from the best effort TCP traffic over DF (Default Forwarding) PHB. To confirm the differentiation, we have experimentally studied TCP performance through the link into which TCP connections over AF PHB and DF PHB are aggregated. This paper describes the experimental results and discusses the possibility of the TCP performance differentiation between AF PHB and DF PHB over ATM.
引用
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页码:425 / 441
页数:16
相关论文
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