Title: Chapter 3: VLANs
Course: RITA MC - CISCO II > Section: Course Outline and Objectives

Overview, Objectives and Outline

Network performance is an important factor in the productivity of an organization. One of the technologies used to improve network performance is the separation of large broadcast domains into smaller ones. By design, routers will block broadcast traffic at an interface. However, routers normally have a limited number of LAN interfaces. A router’s primary role is to move information between networks, not provide network access to end devices.

The role of providing access into a LAN is normally reserved for an access layer switch. A virtual local area network (VLAN) can be created on a Layer 2 switch to reduce the size of broadcast domains, similar to a Layer 3 device. VLANs are commonly incorporated into network design making it easier for a network to support the goals of an organization. While VLANs are primarily used within switched local area networks, modern implementations of VLANs allow them to span MANs and WANs.

This chapter will cover how to configure, manage, and troubleshoot VLANs and VLAN trunks. It will also examine security considerations and strategies relating to VLANs and trunks, and best practices for VLAN design.

Learning Objectives for Chapter 3

- Explain the purpose of VLANs in a switched network.
- Analyze how a switch forwards frames-based on VLAN configuration in a multi-switched environment.
- Configure a switch port to be assigned to a VLAN based on requirements.
- Configure a trunk port on a LAN switch.
- Configure Dynamic Trunk Protocol (DTP).
- Troubleshoot VLAN and trunk configurations in a switched network.
- Configure security features to mitigate attacks in a VLAN-segmented environment.
- Explain security best practices for a VLAN-segmented environment.

Perform the following tasks in order to complete this chapter:

- Launch the Chapter 3 learning module
- Complete the Learning Module Activities
- Complete the Chapter 3 Quiz
- Complete the Chapter 3 Exam

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