Monarch: a tool to emulate transport protocol flowsover the internet at large
Proceedings of the 6th ACM SIGCOMM conference on Internet measurement
Laboratory-based calibration of available bandwidth estimation tools
Microprocessors & Microsystems
Accurate and efficient SLA compliance monitoring
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
HotBots'07 Proceedings of the first conference on First Workshop on Hot Topics in Understanding Botnets
An SLA perspective on the router buffer sizing problem
ACM SIGMETRICS Performance Evaluation Review
Fidelity of network simulation and emulation: A case study of TCP-targeted denial of service attacks
ACM Transactions on Modeling and Computer Simulation (TOMACS)
ACM SIGCOMM Computer Communication Review
Multiobjective monitoring for SLA compliance
IEEE/ACM Transactions on Networking (TON)
Qualitative comparison of link shaping techniques
International Journal of Communication Networks and Distributed Systems
Forwarding devices: From measurements to simulations
ACM Transactions on Modeling and Computer Simulation (TOMACS)
An emulation tool for PlanetLab
Computer Communications
Evaluation Framework for Adaptive Multi-Path Inter-Domain Routing Protocols
International Journal of Adaptive, Resilient and Autonomic Systems
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Laboratory-based experimentation is an increasingly popular method for conducting network research since it enables implementations of network systems and protocols to be evaluated. Most research conducted in lab-based environments requires the faithful reproduction of wide area network conditions. An important step toward satisfying this requirement is the creation of paths between nodes in the lab that have the same characteristics as paths between nodes in the Internet. In this paper, we describe and evaluate a new, highly scalable, software-based path emulation tool called NetPath. We describe the design and implementation of NetPath, which features fixed and probabilistic packet propagation delay emulation, probabilistic bit errors, probabilistic packet loss, packet duplication, and packet reordering capability. Through a series of controlled laboratory experiments, we demonstrate that Net- Path offers over three times the loss-free throughput capacity of other popular software-based path/network emulators. We show that under moderate load NetPath驴s mean propagation delay emulation precision is within 1% of a hardware-based reference emulator. This result represents a significant improvement over other software-based emulators. We illustrate how, relative to our hardware-based reference, NetPath improves application traffic behavior over other software-based emulators. Finally, we demonstrate and characterize NetPath驴s ability to provide path emulation simultaneously on multiple physical links. This capability, which is facilitated through the use of our link configuration tool, enables laboratory system resources to be more efficiently utilized.