IBM 12.1(22)EA6 User Manual
13-9
Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
24R9746
Chapter 13 Configuring VTP
Configuring VTP
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If there are TrBRF and TrCRF Token Ring networks in your environment, you must enable VTP
version 2 for Token Ring VLAN switching to function properly. To run Token Ring and Token
Ring-Net, disable VTP version 2.
version 2 for Token Ring VLAN switching to function properly. To run Token Ring and Token
Ring-Net, disable VTP version 2.
Configuration Requirements
When you configure VTP, you must configure a trunk port so that the switch can send and receive VTP
advertisements. For more information, see the
advertisements. For more information, see the
If you are configuring extended-range VLANs on the switch, the switch must be in VTP transparent
mode.
mode.
Configuring a VTP Server
When a switch is in VTP server mode, you can change the VLAN configuration and have it propagated
throughout the network.
throughout the network.
Note
If extended-range VLANs are configured on the switch, you cannot change VTP mode to server. You
receive an error message, and the configuration is not allowed.
receive an error message, and the configuration is not allowed.
Beginning in privileged EXEC mode, follow these steps to configure the switch as a VTP server:
When you configure a domain name, it cannot be removed; you can only reassign a switch to a different
domain.
domain.
To return the switch to a no-password state, use the no vtp password global configuration command.
This example shows how to use global configuration mode to configure the switch as a VTP server with
the domain name eng_group and the password mypassword:
the domain name eng_group and the password mypassword:
Switch# config terminal
Switch(config)# vtp mode server
Switch(config)# vtp domain eng_group
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
vtp mode server
Configure the switch for VTP server mode.
Step 3
vtp domain domain-name
Configure the VTP administrative-domain name. The name can be from
1 to 32 characters. All switches operating in VTP server or client mode
under the same administrative responsibility must be configured with the
same domain name.
1 to 32 characters. All switches operating in VTP server or client mode
under the same administrative responsibility must be configured with the
same domain name.
Step 4
vtp password password
(Optional) Set the password for the VTP domain. The password can be
from 8 to 64 characters.
from 8 to 64 characters.
If you configure a VTP password, the VTP domain does not function
properly if you do not assign the same password to each switch in the
domain.
properly if you do not assign the same password to each switch in the
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.