VTP Modes

VTP (VLAN Trunking Protocol) is a Cisco proprietary protocol that allows VLAN information to be propagated throughout a network. VTP is used to configure and manage VLANs on Cisco switches. There are three VTP modes: server, client, and transparent.
1. Server Mode In server mode, a switch can create, modify, and delete VLANs. VLAN information is then propagated to all other switches in the same VTP domain. In addition to creating VLANs, the server can also modify the name and other properties of existing VLANs.
2. Client Mode In client mode, a switch receives VLAN information from the server, but cannot create, modify, or delete VLANs. VLAN information is only received by the client switch, and not forwarded to other switches in the same VTP domain.
3. Transparent Mode In transparent mode, a switch does not participate in VTP, and does not propagate VLAN information to other switches in the same VTP domain. The switch will forward VTP advertisements that it receives, but will not act on them. Transparent mode is often used when a switch is connected to non-Cisco equipment, or when VLANs need to be manually configured on the switch.
It’s important to note that all switches in the same VTP domain must have the same VTP domain name, and the same VTP password (if one is configured). Additionally, switches in server or client mode must have the same VTP version configured.
To summarize, VTP modes are used to manage VLAN information on Cisco switches. Server mode allows a switch to create, modify, and delete VLANs, client mode only allows a switch to receive VLAN information, and transparent mode does not participate in VTP at all. It’s important to configure switches in the same VTP domain with the same domain name, password, and VTP version.

Take a look at this video: a tutorial to VTP modes