Introduction

VTP (VLAN Trunking Protocol) is protocol used to Cisco proprietary the automates Vlans network is easy to used and management Vlans is single switch the same VTP domain.

VTP Modes

There are three VTP modes:

server, client, and transparent.

server model

a switch can create, modify, and delete VLANs, that will be used to creat any vlans

client model

a switch can receive and store VLAN information from other switches in the same VTP domain are not cannot create, modify, or delete VLANs.

transparent model

a switch will not participate in VTP updates and will only pass on VTP advertisements to other switches,and creat any vlans to switch

Switch#

Switch#conf

Switch(config)#int rang f0/1-2

Switch(config-if-range)#sw m tr

Switch(config-if-range)#do sh int tr

Switch(config)#do sh vtp sta

Switch(config)#vtp domain zone

Changing VTP domain name from NULL to zone

Switch(config)#do sh vtp sta

Switch(config)#vtp ver 2

Switch(config)#vtp pass 1234

Switch(config)#vtp mode ?

Switch(config)#vtp mode server

Switch(config)#do sh vtp sta

Switch(config)#do sh vtp pass

VTP Password: 1234

Switch(config)#vlan 10

Switch(config-vlan)#name sales

Switch(config-vlan)#do sh vlan

Switch(config-vlan)#do sh vtp sta

Switch(config-vlan)#vlan 20

Switch(config-vlan)#name mangement

Switch(config-vlan)#vlan 40

Switch(config-vlan)#name it

Switch(config-vlan)#do sh vtp sta

Tran

Switch>

Switch>en

Switch#sh int tr

Switch#conf

Switch(config)#int f0/3

Switch(config-if)#sw m tr

Switch(config-if)#do sh int tr

Switch(config)#vtp domain zone

Domain name already set to zone.

Switch(config)#vtp mode transparent

Setting device to VTP TRANSPARENT mode.

Switch(config)#vtp pass 1234

Setting device VLAN database password to 1234

Switch(config)#vtp ver 2VTP mode already in V2.

Clien

Switch(config)#vtp domain zone

Domain name already set to zone.

Switch(config)#do sh vtp st

Switch(config)#vtp mode client

Setting device to VTP CLIENT mode.

Switch(config)#do sh vlan

Switch(config)#vtp pass 1234

Switch(config)#do sh vlan

CCNP VTP

SW1(config)#vtp domain SWITCH

Changing VTP domain name from null to SWITCH

SW1(config)#vtp version 2

SW1(config)#vtp mode server

SW1(config)#vtp password CCNP

Setting device VLAN database password to CCNP

SW1#show vtp status

SW1(config)# interface GigabitEthernet 0/0

SW1(config-if-range)# switchport mode dynamic auto

SW1(config)# interface GigabitEthernet 0/1

SW1(config-if-range)# switchport mode dynamic auto

SW1#show interfaces trunk

SW1(config)# Vlan 100

SW1(config)# Vlan 200

SW1(config)# Vlan 300

SW1(config)# Vlan 400

SW1#show vlan brief

SW2# show vlan brief

SW2(config)#vtp domain SWITCH

Changing VTP domain name from null to SWITCH

SW2(config)#vtp version 2

SW1(config)#vtp mode server

SW2(config)#vtp password CCNP

Setting device VLAN database password to CCNP

SW2#show vtp status

SW2(config)# interface GigabitEthernet 0/0

SW2(config-if-range)# switchport mode dynamic desirable

SW2(config)# interface GigabitEthernet 0/1

SW2(config-if-range)# switchport mode dynamic auto

SW2#show interfaces trunk

SW2# show vlan brief

SW3(config)#vtp domain SWITCH

Changing VTP domain name from null to SWITCH

SW3(config)#vtp version 2

SW1(config)#vtp mode Client

SW3(config)#vtp password CCNP

Setting device VLAN database password to CCNP

SW3#show vtp status  

SW3(config)# interface GigabitEthernet 0/2

SW3(config-if-range)# switchport mode dynamic auto

SW3(config)# interface GigabitEthernet 0/1

SW3(config-if-range)# switchport mode dynamic desirable

Verify your configuration using the show interfaces trunk command as follows:

SW3#show interfaces trunk

SW3# show vlan brief