Configuring Vtp; Understanding How Vtp Version 1 And Version 2 Work - Cisco WS-C2948G-GE-TX Configuration Manual

Configuring VTP

This chapter describes how to configure the VLAN Trunking Protocol (VTP) on the Catalyst enterprise
LAN switches.
Note For complete syntax and usage information for the commands that are used in this chapter, refer to the
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Command
Reference.
This chapter consists of these sections:
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Understanding How VTP Version 1 and Version 2 Work

VTP is a Layer 2 messaging protocol that maintains VLAN configuration consistency by managing the
addition, deletion, and renaming of VLANs on a network-wide basis. 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.
You can use VTP to manage VLANs 1–1005 in your network. (VTP version 1 and VTP version 2 do not
support VLANs 1025–4094.) With VTP, you can make configuration changes centrally on one switch
and have those changes automatically communicated to all the other switches in the network.
For more information on configuring VLANs, see
Note
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
78-15908-01
Understanding How VTP Version 1 and Version 2 Work, page 9-1
Default VTP Version 1 and Version 2 Configuration, page 9-5
VTP Version 1 and Version 2 Configuration Guidelines, page 9-6
Configuring VTP Version 1 and Version 2, page 9-6
Understanding How VTP Version 3 Works, page 9-13
Default VTP Version 3 Configuration, page 9-22
Configuring VTP Version 3, page 9-22
C H A P T E R
Chapter 10, "Configuring VLANs."
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9-1