SONET網路傳訊品質與UDP/ICMP訊務的迴歸相關分析

Abstract

隨著國外訊務的迅速成長，TANet國外連網訊務也迅達飽和使用狀態，為掌握大量國外訊務對該OC3 Sonet傳輸品質的影響。本研究擷取國外傳訊 router Netflow訊務轉送log，及該OC3界面傳訊Sonet SNMP MIB。統計medium傳輸Coding Violation(CV)頻次及承載的TCP/UDP/ICMP訊務變量，分析CV頻次與UDP/ICMP competition訊務間的迴歸相關。統計數據顯示：國外連網尖峰時段出現的明顯TCP traffic degression與ICMP持續burst訊務明顯相關。而CV頻次與ICMP訊務的相關比CV與UDP，介面總承載訊務的相關明顯。The openness of Internet has driven it as the mainstream of data communication and streaming media distribution. And the rapidly growing Internet traffic also results in the hardly traffic congestion over the international Synchronous Optical Network (Sonet) access link that connects TANet and U.S. Internet. For a network management, it is essential to learn the transmission performance through the visible traffic analysis result. This work developed the Coding Violation (CV) and TCP/UDP/ICMP traffic monitoring web pages based on the Sonet MIB and transportation traffic logs gathered from aggregate router. Moreover, we calculated the correlation coefficients between transmission errors and UDP/ICMP competitive traffic of our measurement network. The result shows that there exist several obvious CV bursts and TCP traffic degression during traffic peak hours. And the correlation between CV and UDP/ICMP traffic were significant during the sustaining ICMP traffic burst time periods.