Research on an Available Bandwidth Measurement Model based on Passive Method
Inferring the available bandwidth is of great importance for various network applications. In this paper, an available bandwidth measurement model is proposed based on passive measurement that can be used to high-speed IP network. The core of model has three parts as follows: 1) measuring traffic at the edge node of network. We introduce passive measurement method to measure the node traffic. Because using the hardware measurement techniques outlined is expensive and complex, we use software measurement. Because our software is based on flow measurement, the flow matching, that is, packet classification is a key problem. In packet classification, we introduce the double hash algorithm. We introduce the algorithm based on the absolute Non-Collision Hash and XOR hash. 2) introducing sampling method to acquire route probability and then the link background traffic is collected. 3) deducing sampling probability so that the point of optimization is selected. The model is valid by simulation verification.
Fengjun Shang
College of Computer Science and Technology , Chongqing University of Posts and Telecommunications, Chongqing ,400065,P.R.China
国际会议
南宁
英文
2007-07-20（万方平台首次上网日期，不代表论文的发表时间）