Syngress - Eleventh Hour Network+ Exam N10-004 Study Guide (11 ...

146 CHAPTER 9 Network Management
Wiring Schematics
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Wiring schematics are simple sketches that are created before and during
the installation of the physical media used for computers to talk to each
other.
The physical media used to connect your network are common items to be
included when creating wiring schematics.
When troubleshooting a network connection problem, remember your
wiring schematics.
Physical Network Diagrams
■ Physical network diagrams contain each physical device and physical
connection inside your network.
■ Clear and simple physical diagrams go a long way.
■ Depending on your network size and complexity, you might need the assistance
of network diagram software like Microsoft Visio, SmartDraw, and/or
AutoCAD.
Physically laying out your network devices will help you conserve time and money
when you need to troubleshoot network issues.
Logical Network Diagrams
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Logical network diagrams depict how your network looks from a configurations
perspective, not from the physical layout of the equipment.
Protocols, configurations, IP addressing, subnets, access control lists, security
devices (firewalls, virtual private networks, and so forth), and applications
are all logically associated with a computer network and are drawn
into logical network diagrams.
Baselines
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A “normal” pattern of behavior is referred to as a baseline.
Create a baseline and continue to do analysis on this baseline.
Choosing a baseline method can depend on the size of the network and
number of users.
Many baseline tools collect and monitor activity environmental components,
such as the network, specified central processing units, memory, hard
drives, and identified network interface cards.
Policies, Procedures, and Configurations
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Policies provide guidelines on who can perform certain actions in the
environment.
Procedures lay out each step needed to accomplish a task.
Configurations represent the functional specification with which systems
in the environment operate on.