Routing dynamics measurement and detection for next step internet signaling protocol

Abstract

A next step in signaling (NSIS) protocol is currently under standardization by the Internet Engineering Task Force (IETF) to support various applications that need to manipulate control information along the flow path. This paper addresses the NSIS protocol and IP routing interaction problem. We conducted routing measurement experiments to characterize the current Internet path dynamics, and discussed the impact of the observations on NSIS protocol design. The focus of our study is route change. We introduce NSIS-affecting route changes and define them in typical NSIS deployment models. With the NSIS deployment models in mind, we evaluate the simple packet TTL monitoring route change detection method. Finally, we propose a new route change detection method based on one-way-delay monitoring and provide preliminary evaluation.