Using BGP path advertisements to implement routing policy. Consider the network below with interconnected provider networks and customer networks. Assume that provider network D only wants to carry traffic that originates in one of its customer networks (w, z) or is destined to one of its customer networks. It specifically does not want to forward datagrams between two other provider networks, since that transit traffic is neither sourced from, nor destined to, a customer network of 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
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Using BGP path advertisements to implement routing policy. Consider the network below with interconnected provider networks and customer networks.
Assume that provider network D only wants to carry traffic that originates in one of its customer networks (w, z) or is destined to one of its customer networks. It
specifically does not want to forward datagrams between two other provider networks, since that transit traffic is neither sourced from, nor destined to, a
customer network of D.
W
Oz
à
X
customer
network:
Given these policies, to which other networks will network D advertise the path Dw?
ПА
П В
Oy
A
DC
legend:
B
provider
network
Transcribed Image Text:Using BGP path advertisements to implement routing policy. Consider the network below with interconnected provider networks and customer networks. Assume that provider network D only wants to carry traffic that originates in one of its customer networks (w, z) or is destined to one of its customer networks. It specifically does not want to forward datagrams between two other provider networks, since that transit traffic is neither sourced from, nor destined to, a customer network of D. W Oz à X customer network: Given these policies, to which other networks will network D advertise the path Dw? ПА П В Oy A DC legend: B provider network
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