Consider an IP datagram with the following characteristics: Length of IP header: 20 bytes Total length of IP datagram: 1000 bytes DF flag 0 MF flag 0 Fragment offset 0 Suppose this datagram must be transmitted on a network where the MTU is only 512 bytes. (a) Explain why this IP datagram must be fragmented. How many fragments will be created? (4 M) (b) After the fragmentation is performed, provide the value of the following fields for each of the fragments: (12 M) -Total length (in bytes) - Value of DF flag Value of MF flag - Value of Fragment offset (as a decimal number) (c) What does a router do, if the value of the DF flag of an IP datagram is set to one? 4

Consider an IP datagram with the following characteristics: Length of IP header: 20 bytes Total length of IP datagram: 1000 bytes DF flag 0 MF flag 0 Fragment offset 0 Suppose this datagram must be transmitted on a network where the MTU is only 512 bytes. (a) Explain why this IP datagram must be fragmented. How many fragments will be created? (4 M) (b) After the fragmentation is performed, provide the value of the following fields for each of the fragments: (12 M) -Total length (in bytes) - Value of DF flag Value of MF flag - Value of Fragment offset (as a decimal number) (c) What does a router do, if the value of the DF flag of an IP datagram is set to one? 4

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Question

Consider an IP datagram with the following characteristics:
Length of IP header:
20 bytes
Total length of IP datagram:
1000 bytes
DF flag
0
MF flag
0
Fragment offset
0
Suppose this datagram must be transmitted on a network where the MTU is only 512 bytes.
(a) Explain why this IP datagram must be fragmented. How many fragments will be created?
(4 M)
(b) After the fragmentation is performed, provide the value of the following fields for each of the
fragments: (12 M)
-Total length (in bytes)
- Value of DF flag
Value of MF flag
Value of Fragment offset (as a decimal number)
(c) What does a router do, if the value of the DF flag of an IP datagram is set to one? (4

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