Configuring A Vtp Version 3 Primary Server; Enabling The Vtp Version - Cisco Catalyst 3750-X Software Configuration Manual

Configuring VTP

Configuring a VTP Version 3 Primary Server

Beginning in privileged EXEC mode, follow these steps on a VTP server to configure it as a VTP
primary server (version 3 only), which starts a takeover operation:
Command
vtp primary-server [vlan | mst]
Step 1
[force]
This example shows how to configure a switch as the primary server for the VLAN database (the default)
when a hidden or secret password was configured:
Switch# vtp primary vlan
Enter VTP password: mypassword
This switch is becoming Primary server for vlan feature in the VTP
VTP Database Conf Switch ID
------------ ---- -------------- -------------- -------- --------------------
VLANDB
Do you want to continue (y/n) [n]? y

Enabling the VTP Version

VTP version 2 and version 3 are disabled by default.
•
•
VTP version 1 and VTP version 2 are not interoperable on switches in the same VTP domain. Do not
Caution
enable VTP version 2 unless every switch in the VTP domain supports version 2.
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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
16-14
Purpose
Change the operational state of a switch from a secondary server (the
default) to a primary server and advertise the configuration to the domain.
If the switch password is configured as hidden, you are prompted to reenter
the password.
•
•
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Yes 00d0.00b8.1400=00d0.00b8.1400 1
When you enable VTP version 2 on a switch, every VTP version 2-capable switch in the VTP
domain enables version 2. To enable VTP version 3, you must manually configure it on each switch.
With VTP versions 1 and 2, you can configure the version only on switches in VTP server or
transparent mode. If a switch is running VTP version 3, you can change to version 2 when the switch
is in client mode if no extended VLANs exist, no private VLANs exist, and no hidden password was
configured.
In TrCRF and TrBRF Token ring environments, you must enable VTP version 2 or VTP version 3
for Token Ring VLAN switching to function properly. For Token Ring and Token Ring-Net media,
disable VTP version 2 must be disabled.
(Optional) vlan—Select the VLAN database as the takeover feature.
This is the default.
(Optional) mst—Select the multiple spanning tree (MST) database as
the takeover feature.
(Optional) force—Entering force overwrites the configuration of any
conflicting servers. If you do not enter force, you are prompted for
confirmation before the takeover.
Primary Server Revision System Name
Chapter 16 Configuring VTP
domain
stp7
OL-21521-01