Suppose an IP packet is fragmented into 10 fragments, each with a 1% (independent) probability of loss. To a reasonable approximation, this means there is a 10% chance of losing the whole packet due to loss of a fragment. What is the probability of net loss of the whole packet if the packet is transmitted twice, (a) Assuming all fragments received must have been part of the same transmission? (b) Assuming any given fragment may have been part of either transmission? (c) Explain how use of the Ident field might be applicable here.

Suppose an IP packet is fragmented into 10 fragments, each with a 1% (independent) probability of loss. To a reasonable approximation, this means there is a 10% chance of losing the whole packet due to loss of a fragment. What is the probability of net loss of the whole packet if the packet is transmitted twice, (a) Assuming all fragments received must have been part of the same transmission? (b) Assuming any given fragment may have been part of either transmission? (c) Explain how use of the Ident field might be applicable here.

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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Concept explainers

Network transmission cabling

A network is a collection of devices connected by communication links. A device can be a computer or any instrument capable of sending and receiving data or information formed by other nodes toward the network. A channel that connects people or things is known as a network. It sends the data from one place to another. It is the basic concept of a computer, network, and data communications.

Question

Suppose an IP packet is fragmented into 10 fragments, each
with a 1% (independent) probability of loss. To a reasonable
approximation, this means there is a 10% chance of losing the
whole packet due to loss of a fragment. What is the probability
of net loss of the whole packet if the packet is transmitted twice,
(a) Assuming all fragments received must have been part of the
same transmission?
(b) Assuming any given fragment may have been part of either
transmission?
(c) Explain how use of the Ident field might be applicable here.

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