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(Host A ? Router 1 ? Router 2 -? Host B) nect the hosts and routers are Ethernet 1000B and ar alculations

(Host A ? Router 1 ? Router 2 -? Host B) nect the hosts and routers are Ethernet 1000B and ar alculations

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Total latency is equal to a summation of network delay contributors such as frame transmission time, queuing time, and propagation time. Use the assumptions listed below to answer the questions below. Assumptions: • Host A and Host B are connected to a network. Packets sent from Host A to Host B transit through two Routers, R1 and R2 (Host A ? Router 1 ? Router 2 -? Host B) • The links that connect the hosts and routers are Ethernet 1000B and are short distance and can be ignored in any further delay calculations • The link between the two routers is 8km long and are connected by a T-1 WAN link (line rate = 1.544Mbps) • a single packet (size = 1500bytes) is routed from Host A to Host B through the network. The two routers, R1 and R2, introduce queuing delay of 3 msec and 5 msec, respectively. • Assume the signal propagation velocity in the T-1 channel = Vp = 2 x 108 m/sec a. Calculate the latency (in msec) required to send the 1500byte packet from Host A to Host B
Transcribed Image Text:Total latency is equal to a summation of network delay contributors such as frame transmission time, queuing time, and propagation time. Use the assumptions listed below to answer the questions below. Assumptions: • Host A and Host B are connected to a network. Packets sent from Host A to Host B transit through two Routers, R1 and R2 (Host A ? Router 1 ? Router 2 -? Host B) • The links that connect the hosts and routers are Ethernet 1000B and are short distance and can be ignored in any further delay calculations • The link between the two routers is 8km long and are connected by a T-1 WAN link (line rate = 1.544Mbps) • a single packet (size = 1500bytes) is routed from Host A to Host B through the network. The two routers, R1 and R2, introduce queuing delay of 3 msec and 5 msec, respectively. • Assume the signal propagation velocity in the T-1 channel = Vp = 2 x 108 m/sec a. Calculate the latency (in msec) required to send the 1500byte packet from Host A to Host B
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