Automated packet trace analysis of TCP implementations
SIGCOMM '97 Proceedings of the ACM SIGCOMM '97 conference on Applications, technologies, architectures, and protocols for computer communication
Generating representative Web workloads for network and server performance evaluation
SIGMETRICS '98/PERFORMANCE '98 Proceedings of the 1998 ACM SIGMETRICS joint international conference on Measurement and modeling of computer systems
Measurements and analysis of end-to-end Internet dynamics
Measurements and analysis of end-to-end Internet dynamics
Aggregate traffic performance with active queue management and drop from tail
ACM SIGCOMM Computer Communication Review
Cisco Router Handbook
Advances in Network Simulation
Computer
The design and implementation of the NCTUns 1.0 network simulator
Computer Networks: The International Journal of Computer and Telecommunications Networking
Rate-Distortion Optimized Slicing, Packetization and Coding for Error Resilient Video Transmission
DCC '04 Proceedings of the Conference on Data Compression
Locating Available Bandwidth Bottlenecks
IEEE Internet Computing
Packet-dispersion techniques and a capacity-estimation methodology
IEEE/ACM Transactions on Networking (TON)
Error resilience support in H.263+
IEEE Transactions on Circuits and Systems for Video Technology
IEEE Transactions on Circuits and Systems for Video Technology
Packet-level traffic measurements from the Sprint IP backbone
IEEE Network: The Magazine of Global Internetworking
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The response to a video stream across an Internet end-to-end path particularly depends on the performance at the path's tight link, which can be examined in a simple network testbed. A packet-by-packet (PbP) measurement methodology applied to tight link analysis requires a real-time operating system to gain the desired timing resolution during traffic generation experiments. If, as is common for other purposes, the analysis was simply in terms of average packet rate per second, no burst pattern would be apparent, and without packet-level measurement of instantaneous bandwidth the differing overheads would not be apparent. An illustrative case study, based upon the H.263+video codec, confirms the advantage of the PbP methodology in determining received video characteristics according to packetization scheme, inter-packet gap, router response, and background traffic. Tests show that routers become unreliable if the packet arrival rate passes a critical threshold, one consequence of which is that reported router processor load also becomes unreliable. Video stream application programmers should take steps to reduce packet rates and aggregate packet rates may be reduced through network management. In the case study, a burst of just nine packets increased the probability of packet loss, while the video quality could be improved by packing at least two slices into a packet. The paper demonstrates that an appropriate packetization scheme has an important role in ensuring received video quality, but a physical testbed and a precise measurement methodology are needed to identify that scheme.