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Compiled By: Miss Kiran Ayub

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such as duplicate VLAN names or incorrect VLAN-type specifications. VTP helps you simplify management of the VLAN data base across multiple switches  VTP allows for centralized changes that are communicated to all other switches in the network 2 . VTP minimizes misconfigurations and configuration.

deletion and renaming of VLANs on a network. the VLAN is distributed through all switches in the domain. Cisco layer 2 protocol  Manages the addition .  Reduces the need to configure the same VLAN everywhere  Available on most of the Cisco Catalyst family Products 3 .wide basis  When you configure a new VLAN on VTP Switch(server).

dat 4 . VTP stores VLAN configurations in the VLAN database called vlan.

 Virtual Local Area Network (VLAN) Trunk Protocol(VTP) reduces administration o a switched network  Minimizes the problems caused by incorrect configurations and configuration inconsistencies 5 .

 Group of layer 2 switches sharing VLAN data.  Domain is defined by its name. 6 .  Switch can be linked but not part of domain.  Each switch can belong to only one domain. so all switches in domain must be Cisco switches.  Ends at router or layer 3 switch.  Proprietary to Cisco.

Client.default mode.A switch can be configured in one of three modes Server. They can have their own VLANs. Transparent.forward VTP traffic but do not originate or use it.receives VLAN information and forward it to other switches.not shared with other switches 7 . Sends VLAN information to other switches.

 Cannot create .  Synchronizes VLAN configuration with latest information received from other switches in the management domain  Does Not save VLAN configuration in non volatile RAM(NVRAM) 8 .change or delete VLANs on command-line interface (CLI)  Forwards advertisements to other switches.

 Create.  Send and forwards advertisements to others switches  Synchronizes VLAN configuration with latest information received from other switches in the management port  Saves VLAN configuration in NVRAM(non volatile ram)  VTP servers can create. modify.  VTP servers save VLAN configuration information in the switch NVRAM. 9 .  VTP servers send VTP messages out to all trunk ports. modifies and delete VLANs. and delete VLAN and VLAN configuration parameters for the entire domain.

nor will the switch send out an update indicating a change in its VLAN status.  Except for forwarding VTP advertisements. VTP is disabled on a transparent switch.  Switches in VTP transparent mode forward VTP advertisements but ignore information contained in the message. Create .  Does not synchronize its VLAN configuration with information received from other switches in management domain  Saves VLAN configuration in NVRAM. 10 .  A transparent switch will not modify its database when updates are received.delete and modifies VLAN only on the local switch  Forwards VTP advertisements received from other switches in the same management domain.

 Switch(config)#vtp version <1/2>  Switch(config)#vtp mode <server/client/transparent>  Switch(config)#vtp domain <domain name>  Switch(config)#vtp password <WORD> 11 .

 server Set the device to server mode. 12 . Switch>enable  Switch#conf t Enter configuration commands.  Switch(config)#  Switch(config)#vtp ?  domain Set the name of the VTP administrative domain.  transparent Set the device to transparent mode.  mode Configure VTP device mode  password Set the password for the VTP administrative domain  version Set the administrative domain to VTP version  Switch(config)#vtp mode ?  client Set the device to client mode. one per line. End with CNTL/Z.

 Switch#conf t  Switch(config)#vtp mode server Setting device to VTP SERVER mode.  Switch(config)#vtp domain IT Domain name already set to IT.  Switch(config)#vtp password abc Setting device VLAN database password to abc  Switch(config)#do show vtp status 13 .

 Switch(config)#vtp password abc Setting device VLAN database password to abc Use the show vtp status command Switch(config)#do show vtp status 14 . Switch#conf t  Switch(config)#vtp mode client Setting device to VTP CLIENT mode.  Switch(config)#vtp domain IT Domain name already set to IT.