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Cisco Systems IntelligentGigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
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Chapter13 Configuring VTP
Configuring VTP
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 dom ain. 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 global configuration comman d. When you
configure a domain name, it cannot be removed; you can only reassign a switch to a different domain.
Note You can also configure a VTP client by using the vlan database privileged EXEC command to enter
VLAN configuration mode and entering the vtp client command, similar to th e second procedure under
“Configuring a VTP Server” section on page 13-9. Use the no vtp client VLAN configuration command
to return the switch to VTP server mode or the no vtp password VLAN configuration command to return
the switch to a no-password state. When you configure a domai n name, it cannot be removed; you can
only reassign a switch to a different domain.
Disabling VTP (VTP Transparent Mode)
When you configure the switch for VTP transparent mode, VTP is disabled on the switch. The switch
does not send VTP updates and does not act on VTP updates received from other switches. However, a
VTP transparent switch running VTP version 2 does forward received VTP advertisements on its trunk
links.
Note Before you create extended-range VLANs (VLAN IDs 1006 to 40 94), you must set VTP mode to
transparent by using the vtp mode transparent global configuration command. Save this configuration
to the startup configuration so that the switch boots up in VTP transparent mode. Otherwise, you lose
the extended-range VLAN configuration if the switch resets and boots up in VTP server mode (the
default).
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 vtp mode client Configure the switch for VTP client mode. The default setting is VTP
server.
Step3 vtp domain domain-name (Optional) Enter the VTP administrative-domain name. The name can be
from 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.
Step4 vtp password password (Optional) Enter the password for the VTP domain.
Step5 end Return to privileged EXEC mode.
Step6 show vtp status Verify your entries in the VTP Operating Mode and the VTP Domain Name
fields of the display.