Vtp (Global Configuration) - Cisco Catalyst 3550 Command Reference Manual
Multilayer switch
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vtp (global configuration)
vtp (global configuration)
Use the vtp global configuration command to set or modify the VLAN Trunking Protocol (VTP)
configuration characteristics. Use the no form of this command to remove the settings or to return to the
default settings.
Syntax Description
domain domain-name
file filename
interface name
mode
client
server
transparent
password password
pruning
version number
Catalyst 3550 Multilayer Switch Command Reference
2-646
vtp {domain domain-name | file filename | interface name | mode {client | server | transparent}
| password password | pruning | version number}
no vtp {file | interface | mode | password | pruning | version}
Specify the VTP domain name, an ASCII string from 1 to 32 characters that
identifies the VTP administrative domain for the switch. The domain name
is case sensitive.
Specify the Cisco IOS file system file where the VTP VLAN configuration
is stored.
Specify the name of the interface providing the VTP ID updated for this
device.
Specify the VTP device mode as client, server, or transparent.
Place the switch in VTP client mode. A switch in VTP client mode is enabled
for VTP, and can send advertisements, but does not have enough nonvolatile
storage to store VLAN configurations. You cannot configure VLANs on the
switch. When a VTP client starts up, it does not send VTP advertisements
until it receives advertisements to initialize its VLAN database.
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 the
switch. The switch can recover all the VLAN information in the current VTP
database from nonvolatile storage after reboot.
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.
When VTP mode is transparent, the mode and domain name are saved in the
switch running configuration file, and you can save them in the switch
startup configuration file by entering the copy running-config startup
config privileged EXEC command.
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.
Enable VTP pruning on the switch.
Set VTP version to version 1 or version 2.
Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
OL-8566-01
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