Calculate the latency (from first bit sent to last bit received) for the following: (a) 100-Mbps Ethernet with a single store-and-forward switch in the path and a packet size of 12,000 bits. Assume that each link introduces a propagation delay of 10 us and that the switch begins retransmitting immediately after it has finished receiving the packet. (b) Same as (a) but with three switches. (c) Same as (a), but assume the switch implements “cut- through" switching; it is able to begin retransmitting the packet after the first 200 bits have been received.

Calculate the latency (from first bit sent to last bit received) for the following: (a) 100-Mbps Ethernet with a single store-and-forward switch in the path and a packet size of 12,000 bits. Assume that each link introduces a propagation delay of 10 us and that the switch begins retransmitting immediately after it has finished receiving the packet. (b) Same as (a) but with three switches. (c) Same as (a), but assume the switch implements “cut- through" switching; it is able to begin retransmitting the packet after the first 200 bits have been received.

Operations Research : Applications and Algorithms

4th Edition

ISBN:9780534380588

Author:Wayne L. Winston

Publisher:Wayne L. Winston

Chapter20: Queuing Theory

Section20.10: Exponential Queues In Series And Open Queuing Networks

Problem 8P

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Concept explainers

Network transmission cabling

A network is a collection of devices connected by communication links. A device can be a computer or any instrument capable of sending and receiving data or information formed by other nodes toward the network. A channel that connects people or things is known as a network. It sends the data from one place to another. It is the basic concept of a computer, network, and data communications.

Question

Calculate the latency (from first bit sent to last bit received) for
the following:
(a) 100-Mbps Ethernet with a single store-and-forward switch in
the path and a packet size of 12,000 bits. Assume that each
link introduces a propagation delay of 10 µs and that the
switch begins retransmitting immediately after it has finished
receiving the packet.
(b) Same as (a) but with three switches.
(c) Same as (a), but assume the switch implements “cut-
through" switching; it is able to begin retransmitting the
packet after the first 200 bits have been received.

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