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CCNP SWITCH 642-813 Quick Reference by Denise Donohue

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Chapter 2. VLAN Implementation

VLANs are used to break large campus networks into smaller pieces. The benefit of this is to minimize the amount of broadcast traffic on a logical segment.

VLAN Overview

A virtual LAN (VLAN) is a logical LAN, or a logical subnet. It defines a broadcast domain. A physical subnet is a group of devices that shares the same physical wire. A logical subnet is a group of switch ports assigned to the same VLAN, regardless of their physical location in a switched network. VLAN membership can be assigned either statically by port, or dynamically by MAC address or username.

Two types of VLANs are:

End-to-end VLAN: VLAN members reside on different switches throughout the network. They are ...

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