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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Transcribed Image Text: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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