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Catalyst 3750 Switch Command Reference
OL-8552-07
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
vtp (VLAN configuration)
vtp (VLAN configuration)
Use the vtp VLAN configuration command to configure VLAN Trunking Protocol (VTP)
characteristics. You access VLAN configuration mode by entering the
vlan database privileged EXEC
command. Use the no form of this command to return to the default settings, disable the characteristic,
or remove the password.
vtp {domain domain-name | password password | pruning | v2-mode | {server | client |
transparent}}
no vtp {client | password | pruning | transparent | v2-mode}
Syntax Description
Defaults The default mode is server mode.
No domain name is defined.
No password is configured.
Pruning is disabled.
VTP Version 2 (v2 mode) is disabled.
domain domain-name Set the VTP domain name by entering an ASCII string from 1 to 32
characters that identifies the VTP administrative domain for the switch. The
domain name is case sensitive.
password password Set the administrative domain password for the generation of the 16-byte
secret value used in MD5 digest calculation to be sent in VTP advertisements
and to validate received VTP advertisements. The password can be an ASCII
string from 1 to 32 characters. The password is case sensitive.
pruning Enable pruning in the VTP administrative domain. VTP pruning causes
information about each pruning-eligible VLAN to be removed from VTP
updates if there are no stations belonging to that VLAN.
v2-mode Enable VLAN Trunking Protocol (VTP) Version 2 in the administrative
domains.
client Place the switch in VTP client mode. A switch in VTP client mode is enabled
for VTP, can send advertisements, but does not have enough nonvolatile
storage to store VLAN configurations. You cannot configure VLANs on it.
When a VTP client starts up, it does not send VTP advertisements until it
receives advertisements to initialize its VLAN database.
server Place the switch in VTP server mode. A switch in VTP server mode is
enabled for VTP and sends advertisements. You can configure VLANs on it.
The switch can recover all the VLAN information in the current VTP
database from nonvolatile storage after reboot.
transparent Place the switch in VTP transparent mode. A switch in VTP transparent
mode is disabled for VTP, does not send advertisements or learn from
advertisements sent by other devices, and cannot affect VLAN
configurations on other devices in the network. The switch receives VTP
advertisements and forwards them on all trunk ports except the one on which
the advertisement was received.
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