switches and routers

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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Question
Assume that hops will be minimized across switches and routers.
Q1. When Host C transmits a packet to Host D,
a) How many physical links, data links, and routes will there be along the way?
b) How many packets and frames will there be?
c) How many
switches and routers?
Transcribed Image Text:Assume that hops will be minimized across switches and routers. Q1. When Host C transmits a packet to Host D, a) How many physical links, data links, and routes will there be along the way? b) How many packets and frames will there be? c) How many switches and routers?
Switched Network X
Host A
Physical
Link
(A-X1)
Route A-B
Switched Network Z
Host B
Data Link
R2-B
Host D
Frame X
Packet
Data Link
A-R1
Switch X1
Switch 22
Host E
Switch X2
Switch X3
Switch
Z1
Route A-B
3 Networks (X,Y,Z)
1 Packet & Route
3 Frames & Data Links
7 Physical Links
Switch X4
Switch 24
Packet
Frame Z
Switch Z3
Host C
Point-to-point network
Switched
Network Y
FIGURE 1-28 An Exercise in Physical, Links, Data Links, and Routes
Router R1
Router R3
Data Link
R1-R2
Packet
Frame Y
Router R2
Transcribed Image Text:Switched Network X Host A Physical Link (A-X1) Route A-B Switched Network Z Host B Data Link R2-B Host D Frame X Packet Data Link A-R1 Switch X1 Switch 22 Host E Switch X2 Switch X3 Switch Z1 Route A-B 3 Networks (X,Y,Z) 1 Packet & Route 3 Frames & Data Links 7 Physical Links Switch X4 Switch 24 Packet Frame Z Switch Z3 Host C Point-to-point network Switched Network Y FIGURE 1-28 An Exercise in Physical, Links, Data Links, and Routes Router R1 Router R3 Data Link R1-R2 Packet Frame Y Router R2
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