Cisco Systems 3560 Manual De Usuario
16-11
Catalyst 3560 Switch Software Configuration Guide
OL-8553-06
Chapter 16 Configuring VTP
Configuring VTP
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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.
receives VTP updates from a VTP server in the VTP domain and then modifies its configuration
accordingly.
Follow these guidelines:
•
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.
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.
(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.
Caution
If all switches are operating in VTP client mode, do not configure a VTP domain name. If you do, it is
impossible to make changes to the VLAN configuration of that domain. Therefore, make sure you
configure at least one switch as a VTP server.
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:
Use the no vtp mode global configuration command to return the switch to VTP server mode. To return
the switch to a no-password state, use the no vtp password privileged EXEC command. When you
configure a domain name, it cannot be removed; you can only reassign a switch to a different domain.
the switch to a no-password state, use the no vtp password privileged EXEC command. When you
configure a domain name, it cannot be removed; you can only reassign a switch to a different domain.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
vtp mode client
Configure the switch for VTP client mode. The default setting is VTP
server.
server.
Step 3
vtp domain domain-name
(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.
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.
administrative responsibility must be configured with the same domain
name.
Step 4
vtp password password
(Optional) Enter the password for the VTP domain.
Step 5
end
Return to privileged EXEC mode.
Step 6
show vtp status
Verify your entries in the VTP Operating Mode and the VTP Domain Name
fields of the display.
fields of the display.