Consider the subnet in Fig. 3.11.5. Distance vector routing is used and the following vectors have just come in to router C: from B (5, 0, 8, 12, 6, 2); from D(16, 12, 06, 0, 9, 10) and from E(7, 6, 3, 9, 0, 4). The measured delays to B, D and E are 6, 3 and 5 respectively. What is C's new routing table? Give both the outgoing line to used and the expected delay ? A B E Fig. 3.11.5 F D

Consider the subnet in Fig. 3.11.5. Distance vector routing is used and the following vectors have just come in to router C: from B (5, 0, 8, 12, 6, 2); from D(16, 12, 06, 0, 9, 10) and from E(7, 6, 3, 9, 0, 4). The measured delays to B, D and E are 6, 3 and 5 respectively. What is C's new routing table? Give both the outgoing line to used and the expected delay ? A B E Fig. 3.11.5 F D

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

Consider the subnet in Fig. 3.11.5. Distance vector routing is used and the
following vectors have just come in to router C: from B (5, 0, 8, 12, 6, 2); from D(16, 12,
06, 0, 9, 10) and from E(7, 6, 3, 9, 0, 4). The measured delays to B, D and E are 6, 3 and
5 respectively. What is C's new routing table? Give both the outgoing line to used and
the expected delay ?
A
B
E
Fig. 3.11.5
F
D

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An example would help me understand distance vectors, link state vectors, and route vector routing.
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What are the key distinctions between distance vectors, link state vectors, and path vector routing?
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Consider the subnet in Fig. 3.11.5. Distance vector routing is used and the following vectors have just come in to router C: from B (5, 0, 8, 12, 6, 2); from D(16, 12, 06, 0, 9, 10) and from E(7, 6, 3, 9, 0, 4). The measured delays to B, D and E are 6, 3 and 5 respectively. What is C's new routing table? Give both the outgoing line to used and the expected delay ? A B E Fig. 3.11.5 F D
4. a) Consider designing an ATM network with a leaky-bucket policer that ensures a virtual circuit does not send more cells than expected. Suppose a link has a first-in-first-out (FIFO) queue and carries traffic for two virtual circuits. The traffic on the first virtual circuit follows a leaky- bucket policer (with a bucket depth of 9 cells and a token rate of 100 cells/second) and can settle for best-effort service. The traffic on the second virtual circuit follows a leaky-bucket policer (with a bucket depth of one cell and a token rate of 100 cells/second) that cannot tolerate more than 100 milliseconds of delay in delivering each cell. Suppose the propagation delay on the link is 50 milliseconds. Analyse the smallest transmission rate R, in cells per second, that can satisfy the delay constraint, given that the link serves cells in FIFO order.
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