9-22
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
78-15908-01
Chapter 9 Configuring VTP
Default VTP Version 3 Configuration
• A VTP version 2 region that is connected to two different VTP version 3 regions may receive
contradictory information and keep swapping its database to the VTP version 3 region that has the
highest revision number at any given time. We do not recommend this type of configuration.
• Enabling VTP pruning on a VTP version 3 switch enables pruning only on the switch that you enable
it on. VTP pruning is not propagated as it is with VTP version 1 and VTP version 2.
Default VTP Version 3 Configuration
Table 9-2 shows the default VTP version 3 configuration.
Configuring VTP Version 3
These sections describe how to configure VTP version 3:
• Enabling VTP Version 3, page 9-22
• Changing VTP Version 3 Modes, page 9-23
• Configuring VTP Version 3 Passwords, page 9-27
• Configuring a VTP Version 3 Takeover, page 9-28
• Disabling VTP Version 3 on a Per-Port Basis, page 9-29
• VTP Version 3 show Commands, page 9-30
Enabling VTP Version 3
Use the set vtp version version_number command to specify the VTP version. By default, the VTP
version is version 1 and the VTP mode is server mode. You must specify a domain before selecting a
VTP version or VTP mode.
To enable VTP version 3, perform this task in privileged mode:
Table 9-2 VTP Version 3 Default Configuration
Feature Default Value
VTP domain name Null
VTP mode Server
VTP version 3 enable state Version 1 is enabled
VTP password None
VTP pruning Disabled
Task Command
Step 1
Enable VTP version 3 on the switch. set vtp version 3
Step 2
Verify that VTP version 3 is enabled. show vtp domain
To Next Page
Loading...
