Configuring Vtp; Understanding How Vtp Works - Cisco WS-SUP32-GE-3B - Supervisor Engine 32 Software Configuration Manual

Configuring VTP

This chapter describes how to configure the VLAN Trunking Protocol (VTP) on the Catalyst 6500 series
switches.
For complete syntax and usage information for the commands used in this chapter, refer to the
Note
Catalyst Supervisor Engine 32 PISA Cisco IOS Command Reference, Release 12.2ZY, at this URL:
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2ZY/command/reference/cmdref.h
tml
This chapter consists of these sections:
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Understanding How VTP Works

VTP is a Layer 2 messaging protocol that maintains VLAN configuration consistency by managing the
addition, deletion, and renaming of VLANs within a VTP domain. A VTP domain (also called a VLAN
management domain) is made up of one or more network devices that share the same VTP domain name
and that are interconnected with trunks. VTP minimizes misconfigurations and configuration
inconsistencies that can result in a number of problems, such as duplicate VLAN names, incorrect
VLAN-type specifications, and security violations. Before you create VLANs, you must decide whether
to use VTP in your network. With VTP, you can make configuration changes centrally on one or more
network devices and have those changes automatically communicated to all the other network devices
in the network.
For complete information on configuring VLANs, see
Note
These sections describe how VTP works:
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OL-11439-03
Understanding How VTP Works, page 11-1
VTP Default Configuration, page 11-5
VTP Configuration Guidelines and Restrictions, page 11-5
Configuring VTP, page 11-6
Understanding the VTP Domain, page 11-2
Understanding VTP Modes, page 11-2
Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY
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C H A P T E R
Chapter 12, "Configuring VLANs."
11-1