Cisco Catalyst 3750-X User Manual

16-8
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 16 Configuring VTP
Configuring VTP
• When VTP mode is changed in a switch in the stack, the other switches in the stack also change VTP
mode, and the switch VLAN database remains consistent.
VTP version 3 functions the same on a standalone switch or a
stack except when the switch stack is the
primary server for the VTP database. In this case, the MAC address of the stack master is used as the
primary server ID. If the master switch reloads or is powered off, a new stack master is elected.
• If you do not configure the persistent MAC address feature (by entering the stack-mac persistent
timer [0 | time-value] global configuration command, when the new master is elected, it sends a
takeover message with the new master MAC address as the primary server.
• If persistent MAC address is configured, the new master waits for the configured stack-mac
persistent timer value. If the previous master switch does not rejoin the stack during this time, then
the new master issues the takeover message.
For more information about the sw
itch stack, see Chapter 5, “Managing Switch Stacks.”
Configuring VTP
These sections contain this configuration information:
• Default VTP Configuration, page 16-8
• VTP Configuration Guidelines, page 16-9
• Configuring VTP Mode, page 16-11
• Enabling the VTP Version, page 16-14
• Enabling VTP Pruning, page 16-15
• Configuring VTP on a Per-Port Basis, page 16-16
• Adding a VTP Client Switch to a VTP Domain, page 16-16
Default VTP Configuration
Table 16-2 shows the default VTP configuration.
Ta ble 16-2 Default VTP Configuration
Feature Default Setting
VTP domain name Null.
VTP mode (VTP version 1 and
ve
rsion 2)
Server.
VTP mode (VTP version 3) The mode is the same as the mode in VTP version 1 or 2 before
co
nversion to version 3.
VTP version Version 1 (Version 2 is disabled).
MST database mode Transparent.
VTP version 3 server type Secondary.
VTP password None.
VTP pruning Disabled.

Cisco Catalyst 3750-X Specifications

General

Brand	Cisco
Model	Catalyst 3750-X
Category	Switch
Language	English