Networks are becoming increasingly complex as the needs for speed, bandwidth, robustness, and security increase. The network research group focuses on the problem of building efficient, scalable and secure networks and applications. The research topics include building fast packet forwarding and inspections, designing methods to reduce deployment efforts for network protocols and applications, building scalable network services, and improving the accuracy and performance of network security systems. Examples of recent studies include asymmetric protocol modifications for streaming media and network storages, scalable online game servers, and network-based anti-SPAM systems.