Data Transfer over the Long Fat Networks  

作　　者：H.Sato Y.Morita 等 

机构地区：[1]KEK，Tsukuba,Japan

出　　处：《International Conference on Computing in High Energy and Nuclear Physics》2001年第1期432-434,共3页高能物理与核物理计算国际会议公报（英文版）

摘　　要：The necessity to distribute the data over the wide area network( WAN) to the physicists'home institutes will increase,and the effective utilization of the network becomes crucial,However,networks in the future WAN will typically have a large bandwidth at an order of gigabit per second,with a latency of several hundreds seconds so that the large bandwidth-delay prodeuct extends to tens of megabytes and numerous problems are encountered.such networks are called"long fat networks(LFNs)" In order to study the data transfer operating on a long fat network,we have built the PC clusters connected with the router which can simulate bandwidth limitations.delays,packet losses,and multipath effects.this router is running on FreeBSD with DUMMYNET kernel option.On these machines we have measured the performance of the bulk data transfter with numerous conditions and studied the effecient transfter methods.

关 键 词：广域网 数据传输 PC FARM 

分 类 号：TP393.2[自动化与计算机技术—计算机应用技术]