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
End-to-end internet packet dynamics
IEEE/ACM Transactions on Networking (TON)
Packet reordering is not pathological network behavior
IEEE/ACM Transactions on Networking (TON)
The Eifel algorithm: making TCP robust against spurious retransmissions
ACM SIGCOMM Computer Communication Review
Considering spurious timeout in proxy for improving TCP performance in wireless networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Diagnosis of capacity bottlenecks via passive monitoring in 3G networks: An empirical analysis
Computer Networks: The International Journal of Computer and Telecommunications Networking
3G and 3.5G wireless network performance measured from moving cars and high-speed trains
Proceedings of the 1st ACM workshop on Mobile internet through cellular networks
Correlating user perception and measurable network properties: experimenting with qoe
IPOM'06 Proceedings of the 6th IEEE international conference on IP Operations and Management
DeSRTO: an effective algorithm for SRTO detection in TCP connections
TMA'10 Proceedings of the Second international conference on Traffic Monitoring and Analysis
A scaling analysis of UMTS traffic
NEW2AN'06 Proceedings of the 6th international conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking
NEW2AN'07 Proceedings of the 7th international conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking
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This paper proposes an algorithm to identify TCP spurious retransmission timeouts by post processing of packet traces monitored in operational networks. The operational principles of the algorithm and the assumptions behind its design are explained in detail as well as the situations in which the algorithm is prone to inaccuracies. By extensive measurements in a lab testbed using realistic round trip time characteristics as observed in operational wireless networks and FTP-like as well as Web-like traffic generators, it is shown that the algorithm is accurate in detection of spurious retransmission timeouts. Subsequently, the algorithm is applied to real traffic traces captured at several interfaces of an operational UMTS and GPRS network to analyze the frequency of spurious retransmission timeouts as well as the spurious timeout probability dependent on the load situation in the network and the flow size. This investigation, to our best knowledge the first on large scale TCP traffic traces monitored in an operational UMTS network, shows that spurious timeouts are infrequent events in the considered UMTS as well as the GPRS network. Among other findings, it is additionally shown that the ratio between spurious timeouts and other congestion recovery events experienced by TCP flows is low, indicating a negligible impact of spurious timeouts on TCP performance.