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Chapter 12
Configuring VTP
This example shows how to use VLAN database configuration mode to configure the switch as a VTP
server with the domain name eng_group and the password mypassword:
Switch# vlan database
Switch(vlan)# vtp server
Switch(vlan)# vtp domain eng_group
Switch(vlan)# vtp password mypassword
Switch(vlan)# exit
APPLY completed.
Exiting....
Switch#
Configuring a VTP Client
When a switch is in VTP client mode, you cannot change its VLAN configuration. The client switch
receives VTP updates from a VTP server in the VTP domain and then modifies its configuration
accordingly.
Follow these guidelines:
•
•
If all switches are operating in VTP client mode, do not configure a VTP domain name. If you do, it is
Caution
impossible to make changes to the VLAN configuration of that domain. Therefore, make sure you
configure at least one switch as a VTP server.
Beginning in privileged EXEC mode, follow these steps to configure the switch as a VTP client:
Command
Step 1
configure terminal
Step 2
vtp mode client
Step 3
vtp domain domain-name
Step 4
vtp password password
Step 5
end
Step 6
show vtp status
OL-8915-03
If extended-range VLANs are configured on the switch, you cannot change VTP mode to client. You
receive an error message, and the configuration is not allowed.
If you configure the switch for VTP client mode, the switch does not create the VLAN database file
(vlan.dat). If the switch is then powered off, it resets the VTP configuration to the default. To keep
the VTP configuration with VTP client mode after the switch restarts, you must first configure the
VTP domain name before the VTP mode.
Purpose
Enter global configuration mode.
Configure the switch for VTP client mode. The default setting is VTP
server.
(Optional) Enter the VTP administrative-domain name. The name can be 1
to 32 characters. This should be the same domain name as the VTP server.
All switches operating in VTP server or client mode under the same
administrative responsibility must be configured with the same domain
name.
(Optional) Enter the password for the VTP domain.
Return to privileged EXEC mode.
Verify your entries in the VTP Operating Mode and the VTP Domain Name
fields of the display.
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
Configuring VTP
12-11
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