Congestion avoidance and control
SIGCOMM '88 Symposium proceedings on Communications architectures and protocols
Measurements and analysis of end-to-end Internet dynamics
Measurements and analysis of end-to-end Internet dynamics
A simulation-based study of TCP dynamics over HFC networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Intrusion detection in wireless ad-hoc networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
802.11 denial-of-service attacks: real vulnerabilities and practical solutions
SSYM'03 Proceedings of the 12th conference on USENIX Security Symposium - Volume 12
An investigation into HFC MAC protocols: Mechanisms, implementation, and research issues
IEEE Communications Surveys & Tutorials
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In previous work a DOCSIS model was added to 'ns' to allow simulations to be run to analyze the performance of DOCSIS. These simulations showed that congestion caused by the asymmetric data paths and the MAC contention process caused several performance problems. It was shown that ACK compression could cause a drop in downstream throughput of TCP streams. A denial of service (DoS) threat was also identified, due to the DOCSIS contention process, allowing an attacker to overload the upstream channel, deteriorating the service quality perceived by all active subscribers.Using an actual DOCSIS system, this study continues that simulation effort by running tests on a live system. The purpose is to show that the problems identified by simulation do exist in practice and to collect information from a live system that can be used to validate and improve the simulation model.