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Abstract
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Parallel processing of individual packets occurs within nodes and within networks. As a drawback, parallelism may change the original sending order of packets. For in-order processing, any parallelism requires mechanisms to maintain the original datagram order. Next Generation Networks propose new routing mechanisms, which may lead to out-of-sequence packet arrivals. As application and transport layer protocols assume in-order packet arrivals, they may misinterpret this change in the packet order and underperform. This thesis proposes a framework, which enables protocol engineering with respect to out-of-sequence packet arrivals. It includes a novel analytic reordering model, which enables worst-case estimations on the amount of out-of-sequence packet arrivals in a network. Additionally, it provides a network emulation environment, which allows engineering of real protocol implementations on specific reordering patterns. Besides the model and its analytic evaluation, this thesis presents an equivalent simulation model as well as a coherent testbed for substantial and systematic protocol engineering.
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Reference entry
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Gunreben, S.
Framework für Systematic Evaluation of Protocol Performance with Respect to Out-of-Sequence Packet Arrivals - Communication Networks and Computer Engineering Report No. 104
Dissertation, Universität Stuttgart, Informatik, Elektrotchnik und Informationstechnik, 2010
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