CYSE 230 Study Guide - Source Port, Packet Loss, Selective Repeat Arq

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For a connection-oriented service that is provided by tcp, it is necessary to have a rdt protocol to ensure delivery of all the packets and to enable the receiver to deliver the packets in order with its application layer. In rdt, sequence numbers are used to determine if an arriving packet contains new data or is a transmission. It also helps in reordering and to provide information about potentially dropped packages. Compute the estimatedrtt after each of these samplertt values is obtained, using a value of . = 0. 125 and assuming that the value of estimatedrtt was 100 ms just before the first of these five samples were obtained. Compute also the devrtt after each sample is obtained, assuming a value of = 0. 25 and assuming the value of devrtt was 5 ms just before the first of these five samples was obtained. Last, compute the tcp timeoutinterval after each of these samples is obtained.

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