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1 Planning a Network
Topology
Exam Objectives in this Chapter:
■
Plan and modify a network topology.
■
Plan the physical placement of network resources.
■
Identify network protocols to be used.
Why This Chapter Matters
This chapter introduces some of the most basic decisions you must make when
designing a network for a particular organization at a particular site. As a
network
designer, you are responsible for determining the requirements of the
network’s
users, administrators, and owners, and then for creating a network plan that
attempts to fulfill them all. This chapter is by no means a complete survey
of the
network design process, but it does demonstrate how certain design decisions
have
profound repercussions for network planning, implementation, and
maintenance.
For example, understanding the properties of the various network media in
use
today, as summarized in this chapter, helps you understand which medium is
best
suited to a particular network installation. The choice of medium can be
based on
the physical nature of the site where the network will be installed, or on
the
requirements of the network users, or more likely both.
When creating a network design, comprehensive documentation is vital, both
for
the benefit of the people who will install the network and for those who
will
maintain it later. This chapter specifies some of the most important
information
you should include in a network blueprint and indicates how the networking
components you choose affect what information you should provide.
Lessons in this Chapter:
■
Lesson 1: Windows Server 2003 and the Network Infrastructure . . . . . . . .
. . .1-5
■
Lesson 2: Selecting Data-Link Layer Protocols . . . . . . . . . . . . . . .
. . . . . . . . .1-12
■
Lesson 3: Selecting Network/Transport Layer Protocols . . . . . . . . . . .
. . . . . .1-25
■
Lesson 4: Locating Network Resources . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .1-31
1-3
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