Path advertisement and policy (Part 1). Suppose a provider network only wants to carry traffic to/from its customer networks (i.e., to provide no transit service), and customer networks only want to carry traffic to/from itself. Consider the figure below. To implement this policy, to which of the following networks would network C advertise the path Cy? 5.4-3. Path advertisement and policy (Part 2). Again, suppose a provider network only wants to carry traffic to/from its customer networks (i.e., to provide no transit service),and customer networks only want to carry traffic to/from itself. Suppose C has advertised path Cy to A. To implement this policy, to which of the following networks would networkA advertise the path ACy?ВAprovidernetworklegend:customernetwork:BO xO O O O

Solution: Given, Part1: Correct options are: w x because ABC are provider network and they dont need advertisement so only the customer network requires the advertisement so path ACy will be shared with Cx and CwPart2 Correct options are: w Explanation: A,B,C are provider networks X,W,Y are customers (of provider networks) X is dual-homed: attached to two networks X does not want to carry traffic from B to C so X will not advertise to B a route to C so remaining is w so correct answer is w.

Answered: Path advertisement and policy (Part 1).…

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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Path advertisement and policy (Part 1). Suppose a provider network only wants to carry traffic to/from its customer networks (i.e., to provide no transit service), and customer networks only want to carry traffic to/from itself. Consider the figure below. To implement this policy, to which of the following networks would network C advertise the path Cy?

5.4-3. Path advertisement and policy (Part 2). Again, suppose a provider network only wants to carry traffic to/from its customer networks (i.e., to provide no transit service),
and customer networks only want to carry traffic to/from itself. Suppose C has advertised path Cy to A. To implement this policy, to which of the following networks would network
A advertise the path ACy?
В
A
provider
network
legend:
customer
network:
B
O x
O O O O

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