Answered: , R1 and R2 (Host A ? Router 1 ? Router…

, R1 and R2 (Host A ? Router 1 ? Router 2 -? Host B) ks that connect the hosts and routers are Ethernet 1000B an ther delay calculations

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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dont post copied content had already existing answers posting so many times dont post plagiarized conten else report

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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