Overview

Introduction

The Configuring and Verifying VLANs module provides you with the instructions and Cisco hardware to develop your hands on skills in understanding, configuring and troubleshooting VLAN configurations on switches. This module includes the following activities:

  • Understand the fundamentals of VLANs
  • Create VLANs and assign them to specific ports
  • Understand the Default VLAN and take steps to mitigate its vulnerabilities
  • Configure a voice VLAN and verify the configuration

Exercise 1 - VLAN Creation and Management

VLANs are an important part of your network design and are an indispensable tool to make your network versatile and secure.

In this exercise, you will learn the fundamentals of VLAN creation and management as well as best practices concerning the default VLAN that will improve security.

Exercise 2 - Creating a Voice VLAN

With the advent of what is known as network convergence, networks have been designed to accommodate various types of payloads including voice. Voice requires special consideration because of its nature as a payload and because of its sensitivity from both a quality of service as well as a privacy standpoint. As such, Cisco has developed a special type of VLAN that accommodates the needs of voice.

Modern voice and data networks only require one port per workstation as most phones have a network port into which a computer can be connected. This way, only one network port is necessary to equip a workstation with both a telephone and a computer. Transmitting voice and data over a single connection while at the same time maintaining the quality of service and security demand VLAN mechanisms appropriate to accommodate such requirements.

In this exercise, you will configure a voice VLAN, and you will apply it for use with an IP telephone.

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