Research On Bandwidth Measurement Technology For Internet Network

Taking the TCP/IP agreement as the main agreement's Internet network, Internet is seeping to human society life each corner, already gradually became one of human society infrastructures. The Internet network size expands unceasingly, the degree increases unceasingly, the bandwidth grows doubled and re-doubled, the network complicates day by day. The network bandwidth is in the Internet one capital stock, is also in the many kinds of networking key aspect. In the Internet network real-time, precise examination network band width, has the important meaning regarding the network performance's monitoring and the management. Carries out the Internet network band width measuring technique research, for Internet's active control, The available bandwidth takes the band width an important factor, its survey regarding the inquire deeply network behavior, optimizes the end-to-end transmission performance to have the very vital significance. The Internet scale expands, complex unceasing increase unceasingly, set more and more high request to available bandwidth's survey.At present, the band width target not yet by the standardization, the numerous band width measuring technique and the tool is away from the large-scale use and applies people's anticipated each domain also to have thoroughly the very great distance, this topic introduced systematically network survey domain, has analyzed the existing band width target thoroughly and had pointed out these target existence's question, key to might using the band width definition insufficiently clear consummation, lack the consideration to it along with the time variation dynamic characteristic the question to carry on the analysis, based on this has given quite accurate and each level clearly demarcated band width target definition. After analysis present commonly used measuring technique and tool, target-oriented has conducted the deep research to the SloPS algorithm, applied its measuring tool Pathload to carry on the test to the campus net's certain link available bandwidth, through test result, discovery available bandwidth existence some questions. Used Agent-Manager the System user evaluation system to appraise the campus net's band width use factor, through to the band width research, as well as the massive experiments which on-line did in the campus, hope to the next campus net's performance appraisal, the campus net's construction function.