Getting a Networking Job For Dummies

Chapter 3

Knowing Your Networking

In This Chapter

• Becoming familiar with key concepts in networking technologies
• Understanding the issues that concern networking professionals
• Making sure you know your priorities
• Adjusting to changing conditions

Chances are that you are knowledgeable about some aspects of networking, but are somewhat uncertain about others. Rather than make an assumption that you are a universal expert on all things networking, this chapter covers the most important technical elements of networking. Networking expertise is critical to your success in a networking job.

A great deal of time in this role is spent planning, budgeting, presenting, training, and generally collaborating with coworkers. We deftly avoid mentioning these administrative aspects of networking as of the end of this sentence.

Appreciating First Principles

Before we get started, a few things need to be said about the network in an organization. First we cover some basic concepts about the design goals of a network. Next we describe business objectives and how these affect network design.

Recognizing design goals for the network

There is no such thing as a one-size-fits-all network. Each organization has unique requirements:

• Connection to legacy computer systems: Unless you work at a startup launched just minutes ago, your organization has existing computer systems for things such as email. Connecting your computers together (and to the Internet) involves a network.
• Plans for future systems: ...