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Summary: Phoenix: A System for Automatically Reconfiguring
Networks
Theophilus Benson, Aditya Akella
University of Wisconsin, Madison
David Maltz
Microsoft Research
1. MOTIVATION
Modern enterprise networks have complex topologies
and impose a variety of restrictions on network com-
munication. Enterprise networks also evolve with time
due to software patches, worm outbreaks, network up-
grades etc. These characteristics of enterprises gener-
ally tend to make their network configuration files
highly complex.
The high degree of configuration complexity makes
enterprise networks error-prone, difficult to troubleshoot
and difficult to modify. When problems arise or when
the network's configuration needs to change, operators
are often forced to intervene manually. Since their time
is at a premium, operators generally implement quick
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