基于组播的流量发布  

Multicast-based traffic data delivery

作　　者：张千里[1] 李星[1] 

机构地区：[1]清华大学网络中心,北京100084

出　　处：《大连理工大学学报》2005年第z1期37-40,共4页Journal of Dalian University of Technology

基　　金：973项目"新一代互联网技术综合实验验证及演示平台"(2003CB314807)

摘　　要：实际流量数据对于互联网络的研究有着重要的意义.由于存储发布方面的一些困难,公开的实际流量数据很少.为此提出一种基于组播的流量发布协议,流量不再需要保存到存储设备,使用者只需要加入到组播组中,就可以接收到最新的流量数据.这样既避免了存储的巨大开销,又避免了发布时下载产生的拥塞.定义了一种新的数据包发布格式,能够和PCAP格式进行互相转化,且更为紧凑.通过将各个多个流量数据包归并为一个大的数据包发送,避免了接收者的性能负担.Traffic traces are often important for Internet research.Public traffic data is rare due to storage and delivery difficulties.The authors propose a multicast-based traffic delivery system that does not require traffic to be stored in the server.Traffic users may join the multicast group and receive the most recent traffic data.This scheme avoids the cost of storage and the inconvenience in traffic download.The authors also designed a new compact packet format which is compatible with PCAP format.To merge several packets into one,it can avoid the processing overhead of traffic users.

关 键 词：被动测量 流量发布 组播 流量采集 

分 类 号：TP393.06[自动化与计算机技术—计算机应用技术]