Increased performance, fairness, and security remain important goals for service providers.
In this work, we design an integrated distributed monitoring, traffic conditioning, and flow
control system for higher performance and security of network domains. Edge routers
monitor (using tomography techniques) a network domain to detect quality of service (QoS)
violations—possibly caused by underprovisioning—as well as bandwidth theft attacks. To
bound the monitoring overhead, a router only verifies service level agreement (SLA) …

This research studies and designs techniques for coordinated network monitoring, traffic
conditioning, and flow control as integral components of the edge routers in a network
domain. The enhanced edge routers yield secure network domains, and achieve better
performance in terms of high data throughput, low delay, and low loss rates. The potential
performance gain from the proposed techniques is critical for the current and emerging
network services such as multimedia applications. Using simulation, we evaluate the edge …