A platform for unobtrusive measurements on PlanetLab

TitleA platform for unobtrusive measurements on PlanetLab
Publication TypeConference Papers
Year of Publication2006
AuthorsSherwood R, Spring N
Conference NameProceedings of the 3rd conference on USENIX Workshop on Real, Large Distributed Systems - Volume 3
Date Published2006///
PublisherUSENIX Association
Conference LocationBerkeley, CA, USA

TCP Sidecar is a network measurement platform for injecting probes transparently into externally generated TCP streams. By coupling measurement probes with nonmeasurement traffic, we are able to obtain measurements behind NATs and firewalls without alerting intrusion detection systems. In this paper, we discuss Sidecar's design and our deployment experience on PlanetLab. We present preliminary results from Sidecar-based tools for RTT estimation ("sideping") and receiver-side bottleneck location ("artrat").