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17-6
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
OL-10101-02
Chapter 17 Configuring VTP
Configuring VTP
• Turn off VTP pruning by making all VLANs on the trunk of the switch upstream to the VTP
transparent switch pruning ineligible.
To configure VTP pruning on an interface, use the switchport trunk pruning vlan interface
configuration command (see the
“Changing the Pruning-Eligible List” section on page 16-19). VTP
pruning operates when an interface is trunking. You can set VLAN pruning-eligibility, whether or not
VTP pruning is enabled for the VTP domain, whether or not any given VLAN exists, and whether or not
the interface is currently trunking.
Configuring VTP
This section includes guidelines and procedures for configuring VTP. These sections are included:
• Default VTP Configuration, page 17-6
• VTP Configuration Options, page 17-6
• VTP Configuration Guidelines, page 17-8
• Configuring a VTP Server, page 17-9
• Configuring a VTP Client, page 17-11
• Disabling VTP (VTP Transparent Mode), page 17-12
• Enabling VTP Version 2, page 17-13
• Enabling VTP Pruning, page 17-14
• Adding a VTP Client Switch to a VTP Domain, page 17-14
Default VTP Configuration
Table 17-2 shows the default VTP configuration.
VTP Configuration Options
You can configure VTP by using these configuration modes.
• VTP Configuration in Global Configuration Mode, page 17-7
• VTP Configuration in VLAN Configuration Mode, page 17-7
You access VLAN configuration mode by entering the vlan database privileged EXEC command.
For detailed information about vtp commands, see the command reference for this release.
Ta b l e 17-2 Default VTP Configuration
Feature Default Setting
VTP domain name Null.
VTP mode Server.
VTP version 2 enable state Version 2 is disabled.
VTP password None.
VTP pruning Disabled.