My area of research is networking with an emphasis on Internet routing, routing security, and network measurement. I am interested in understanding improving the robustness of infrastructure services such as routing, DNS, search engines. My work involves both empirical data collection and analysis, as well as the design and implementation of new systems. Here are some of my ongoing projects:

* Network management for enterprise and ISP networks.
* Malware characterization and deterrence.
* Intrusion detection systems.
* Routing plane and data plane interaction: happy packets.
* Routing protocol models, attacks against routing protocols.
* Sensor networks for patient monitoring.