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Computer and Communication Networks, Second Edition by Nader F. Mir

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Chapter 11. Network Queues and Delay Analysis

Queueing models offer qualitative insights into the performance of communication networks and quantitative estimations of average packet delay. In many networking instances, a single buffer forms a queue of packets. A single queue of packets is a notion of packet accumulation at a certain router or even at an entire network. In the context of data communication, a queueing buffer is a physical system that stores incoming packets, and a server can be viewed as a switch or a similar mechanism to process and route packets to the desired ports or destinations. A queueing system generally consists of a queueing buffer of various sizes and one or more identical servers. This chapter focuses on delay analysis ...

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