Which IOS command configures the switch for the VTP mode that will propagate its VLAN database changes to others in the domain?
- vtp mode client
- vtp mode server
- vtp v1-mode
- vtp transparent mode
To configure a switch to operate as a VLAN Trunk Protocol (VTP) server, enter the vtp mode server command at the global configuration prompt.
switch(config)# vtp mode server
There are three modes in VTP: server, client, and transparent. The main differentiator among the three modes is whether a switch can create, modify, or delete VLANs. A Catalyst switch can create, modify, and delete VLANs in server or transparent mode, but not in client mode. However, VLANs created on a switch in transparent mode apply only to that switch, and information about these VLANs is not propagated throughout the VTP domain.
The VTP server mode sends or forwards VTP advertisements, synchronizes VLAN configuration information with other switches, and saves the VLAN in NVRAM.
The VTP transparent mode forwards VTP advertisements and saves the VLAN configuration in NVRAM. It does not synchronize VLAN configuration information. A switch in transparent mode can create, delete, and modify VLANs, but changes are not transmitted to other switches in the domain. Changes only affect the local switch.
The VTP client mode sends or forwards VTP advertisements and synchronizes VLAN configuration information with other switches. It does not save VLAN information in NVRAM. In client mode, VTP clients only can receive VLAN information from VTP servers.
For added security, you can specify the VTP domain to which the client belongs and a password used to connect to the domain when configuring a switch for VTP client mode. The password is the same for all devices in the VTP domain. The commands to configure a VTP password are as follows:
switch(config)# vtp domain domain-name switch(config)# vtp password password
The vtp v1-mode command reverts the VTP version to version 1 (the default version). Use the vtp v2-mode command to set the VTP mode to version 2.
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Configure and verify trunking