Not just the CCNA exam are going to have questions on VLAN trunking protocol, almost all networks with more than one VLAN running VTP. Whether you are planning to take the exam CCNA or brush just networking skills, this VTP tutorial will teach you the fundamentals of this important protocol.
VTP allows switches VLAN information between other members of the same VTP domain indicated. VTP allows a consistent view of the switched network in all switches. When you create a VLAN on a switch in VTP server, all other devices in the VTP domain are notified by the existence of VLAN. VTP servers will know about all VLANs that no members have the same VLAN on this switch.
VTP switches to run in one of three modes. In server mode, VLANs can be created, modified and deleted on a VTP server. If these measures are taken, the changes to all switches in the VTP domain will be announced. VTP Servers keep VLAN configuration information for a restart.
In client mode, the switch can not create, change or delete VLANs. VTP clients can not VLAN configuration information upon reboot, they need this information from a VTP server.
In the real world networks, which is usually done in order to centralize the creation and deletion of VLANs. An interesting side effect of the client-server Methodology is that if a VLAN is only for VTP client switch port available, the VLAN must always first be created on the VTP server. The VTP client will learn about VLANs from the VTP server, and ports can be placed in this VLAN.
The third mode is the VTP transparent mode. VTP switches in this mode, VTP left ignored. They pass the VTP advertisements received from other switches. VLANs can be created deleted, and modified on a server transparency, but these changes are not to other switches in the VTP domain advertised.
For switches running VTP successfully exchange VLAN information must pass three things. I have for you in the order listed, you can see in the real world.
The VTP domain name must match. This is case sensitive. “Cisco” and “Cisco” are two different areas.
To distribute information on a newly created VLAN, the switch where the VLAN was created, must be in server mode.
Learning VTP is not only a good idea, your CCNA exam is to indicate a skill that you need to effectively configure and troubleshoot VLANs. I wish you the best in both activities!
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