Characteristics of wide-area TCP/IP conversations

摘要: In this paper, we characterize wide-area network applications that use the TCP transport protocol. We also describe a new way to model traffic generated by stub network. believe presented here will be useful in studying congestion control, routing algorithms, and other resource management schemes for existing future networks. Our is based on trace analysis of TCP/IP widearea internetwork traffic. collected packet headers USC, UCB, Bellcore networks at point they connect with their respective regional access then wrote handful programs analyze traces. characterizes individual conversations distributions of: number bytes transferred, duration, packets size, interarrival time. shows both interactive bulk transfer from all sites reflect large short conversations. Similarly, it very percentage bidirectional, even transfer. observed send significantly different amounts data each direction conversation, times closely follow constant plus exponential model. Half are directed networks, but half hundreds Many these observations contradict commonly held beliefs regarding This research was supported an equipment grant Charles Lee Powell Foundation. Ramon Caceres NSF DARPA under Cooperative Agreement NCR8919038 CNRI, AT&T Bell Laboratories, Hitachi, University California MICRO grant, ICSI.