A measurement study on the impact of routing events on end-to-end internet path performance

Extensive measurement studies have shown that end-to-end Internet path performance degradation is correlated with routing dynamics. However, the root cause of the correlation between routing dynamics and such performance degradation is poorly understood. In particular, how do routing changes result in degraded end-toend path performance in the first place? How do factors such as topological properties, routing policies, and iBGP configurations affect the extent to which such routing events can cause performance degradation? Answers to these questions are critical for improving network performance. In this paper, we conduct extensive measurement that involves both controlled routing updates through two tier-1 ISPs and active probes of a diverse set of end-to-end paths on the Internet. We find that routing changes contribute to end-to-end packet loss significantly. Specifically, we study failover events in which a link failure leads to a routing change and recovery events in which ...

• Type: Conference
• Year: 2006
• Where: SIGCOMM
• Authors: Feng Wang, Zhuoqing Morley Mao, Jia Wang, Lixin Gao, Randy Bush
• Keywords: Path Performance, Performance Degradation, Routing, SIGCOMM 2006