Characterizing the Global Impact of P2P Overlays on the AS-Level Underlay

Abstract. This paper examines the problem of characterizing and assessing the global impact of the load imposed by a Peer-to-Peer (P2P) overlay on the AS-level underlay. In particular, we capture Gnutella snapshots for four consecutive years, obtain the corresponding AS-level topology snapshots of the Internet and infer the AS-paths associated with each overlay connection. Assuming a simple model of overlay traffic, we analyze the observed load imposed by these Gnutella snapshots on the AS-level underlay using metrics that characterize the load seen on individual AS-paths and by the transit ASes, illustrate the churn among the top transit ASes during this 4-year period, and describe the propagation of traffic within the AS-level hierarchy.

• Type: Conference
• Year: 2010
• Where: PAM
• Authors: Amir Hassan Rasti, Reza Rejaie, Walter Willinger
• Keywords: AS-level Topology Snapshots, AS-level Underlay, Computer Networks, Gnutella Snapshots, PAM 2010