Consider a datagram network using 32-bit host addresses. Suppose a router has four links, numbered 0 through 3, and packets are to be forwarded to the link interfaces as illustrated in Figure 1. What is the correct interface to use for each of the following addresses? 10011000 10010001 01010001 01010101 11010001 00000000 11000011 00111100 11010001 10000000 00010001 01110111 Destination Address Range 11010000 00000000 00000000 00000000 through 11010000 11111111 11111111 11111111 11010001 00000000 00000000 00000000 through 11010001 00000000 11111111 11111111 11010001 00000000 00000000 00000000 through 11010001 11111111 11111111 11111111 Otherwise Link Interface 0 Figure 1: Example forwarding table. 1 2 3

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
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Consider a datagram network using 32-bit host addresses. Suppose a router has four links, numbered 0
through 3, and packets are to be forwarded to the link interfaces as illustrated in Figure 1. What is the
correct interface to use for each of the following addresses?
10011000 10010001 01010001 01010101
11010001 00000000 11000011 00111100
11010001 10000000 00010001 01110111
Destination Address Range
11010000 00000000 00000000 00000000
through
11010000 11111111 11111111 11111111
11010001 00000000 00000000 00000000
through
11010001 00000000 11111111 11111111
11010001 00000000 00000000 00000000
through
11010001 11111111 11111111 11111111
Otherwise
Link Interface
0
Figure 1: Example forwarding table.
1
2
3
Transcribed Image Text:Consider a datagram network using 32-bit host addresses. Suppose a router has four links, numbered 0 through 3, and packets are to be forwarded to the link interfaces as illustrated in Figure 1. What is the correct interface to use for each of the following addresses? 10011000 10010001 01010001 01010101 11010001 00000000 11000011 00111100 11010001 10000000 00010001 01110111 Destination Address Range 11010000 00000000 00000000 00000000 through 11010000 11111111 11111111 11111111 11010001 00000000 00000000 00000000 through 11010001 00000000 11111111 11111111 11010001 00000000 00000000 00000000 through 11010001 11111111 11111111 11111111 Otherwise Link Interface 0 Figure 1: Example forwarding table. 1 2 3
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