COMPUTER NETWORKING - ACCESS CODE
COMPUTER NETWORKING - ACCESS CODE
7th Edition
ISBN: 9780134310954
Author: KUROSE
Publisher: PEARSON
Expert Solution & Answer
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Chapter 4, Problem P12P

a.

Explanation of Solution

  • Subnet A allocated through network address 214.97.254/23 with 250 interfaces includes the assignment 214.97.255/24 with 256 addresses.
  • Subnet B allocated through network address 214.97.254/23 with 120 interfaces includes the assignment 214.97.254.0/25 - 214.97.254.0/29 with 120 addresses.
  • Subnet C allocated through network address 214.97.254/23 with 120 interfaces includes the assignment 214.97.254...

b.

Explanation of Solution

Assume that datagrams doesn’t include interfaces of router to destinations. Assign D for upper-right interior subnet, E for bottom interior subnet and F for upper-left interior subnet.

The following forwarding table describes about the long prefix matching and its outgoing interface for the Router 1.

Longest Prefix MatchOutgoing Interface
11010110 01100001 11111111Subnet A
11010110 01100001 11111110 0000000Subnet D
11010110 01100001 11111110 000001Subnet F

The following forwarding table describes about the long prefix matching and its outgoing interface for the Router 2...

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