Chapter2.VLAN Operations

Chapter 2. VLAN Operations

This chapter explores probably the most fundamental concept of modern LAN switching: virtual LANs (VLANs). In legacy Ethernet networks of the 1980s and early 1990s, the concept of virtual LANs did not exist; instead, only the concept of physical LANs existed. Layer 1 and Layer 2 Ethernet devices such as hubs and bridges were dedicated to a single, physical LAN, and implementing another LAN required more hubs and bridges. Today, LAN switches have the capability to provide connectivity for multiple physical LANs by implementing the concept of virtual LANs. In this chapter you learn about transparent bridging, which is the function provided by a bridge on a single physical LAN. This concept is then extended to VLANs, and you learn how they work and how to configure them.

After some initial introductory material, this chapter presents the following configuration scenarios, which provide you with the practical knowledge required to implement spanning tree, which provide you with the practical knowledge required to implement VLANs:

  • Scenario 2-1: Understanding Transparent Bridging

  • Scenario 2-2: Configuring VLAN Trunking Protocol (VTP)

  • Scenario 2-3: Configuring VLANs

  • Scenario 2-4: Configuring the Management VLAN

  • Scenario 2-5: Configuring Extended-Range VLANs

CCNP Self-Study CCNP Practical Studies. Switching
CCNP(R) Practical Studies: Switching (CCNP Self-Study)
ISBN: 1587200600
EAN: 2147483647
Year: 2002
Pages: 135
Authors: Justin Menga

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