An Analysis of BGP Multiple Origin AS (MOAS) Conflicts

Authors

Xiaoliang ZhaoFollow
Dan Pei
Lan WangFollow
Dan Massey
Allison Mankin
S. Felix Wu

Abstract

This paper presents a detailed study of BGP Multiple Origin AS (MOAS) conflicts observed in the Internet. A MOAS conflict occurs when a particular prefix appears to originate from more than one AS. We analyzed data from archived BGP routing tables over 1279 days. Most of the conflicts were short-lived, lasting only a small number of days. The potential causes for the MOAS conflicts and impact on BGP fault-tolerance are discussed in detail.

Publication Title

Proceedings of the ACM SIGCOMM Internet Measurement Workshop

Recommended Citation

Zhao, X., Pei, D., Wang, L., Massey, D., Mankin, A., & Felix Wu, S. (2001). An Analysis of BGP Multiple Origin AS (MOAS) Conflicts. Proceedings of the ACM SIGCOMM Internet Measurement Workshop, 31-35. https://doi.org/10.1145/505203.505207