VTP: VLAN TRUNKING PROTOCOL - Benefits, Components, Modes
VTP Concepts
The challenge of managing the VLAN
As the number of switches in a network of small and medium enterprises, general administration required to manage VLANs and trunking on a network becomes a challenge.
What is VTP?
VTP allows a network administrator to set up a switch so that propagate the VLAN configurations to other switches in the network. The switch can be configured in the function of VTP server or client.
VTP Benefits
VTP maintains consistency in VLAN configuration by managing the addition, removal and renaming of VLANs across multiple Cisco switches in a network. The VTP provides many benefits to network administrators.
Components of VTP
There are a number of key components that need to be familiar with learning about the VTP. Here is a brief description of the components will be explained later as progress is made in the chapter.
VTP domain: consists of one or more interconnected switches. All switches in a domain share the details of VLAN configuration with VTP publications. A router or Layer 3 switch defines the boundary of each domain.
Publications VTP: VTP uses a hierarchy of publications to distribute and synchronize VLAN configurations across the network.
VTP Modes: A switch can be configured in one of three modes: server, client, or transparent.
VTP server: VTP servers publish the VLAN information from the VTP domain to other VTP-enabled switches in the same VTP domain. VTP servers save VLAN information for the entire domain in NVRAM.
Client VTP: VTP clients function the same way as VTP servers, but can not create, change, or delete VLANs on a VTP client. A VTP client only stores the VLAN information for the entire domain while the switch is activated. A reset switch erases the information of the VLAN.
VTP transparent: transparent switches send VTP advertisements to VTP clients and servers. Transparent switches do not participate in VTP. VLANs are created, renamed or deleted on the local switches are transparent to the switch only.
The challenge of managing the VLAN
As the number of switches in a network of small and medium enterprises, general administration required to manage VLANs and trunking on a network becomes a challenge.
What is VTP?
VTP allows a network administrator to set up a switch so that propagate the VLAN configurations to other switches in the network. The switch can be configured in the function of VTP server or client.
VTP Benefits
VTP maintains consistency in VLAN configuration by managing the addition, removal and renaming of VLANs across multiple Cisco switches in a network. The VTP provides many benefits to network administrators.
Components of VTP
There are a number of key components that need to be familiar with learning about the VTP. Here is a brief description of the components will be explained later as progress is made in the chapter.
VTP domain: consists of one or more interconnected switches. All switches in a domain share the details of VLAN configuration with VTP publications. A router or Layer 3 switch defines the boundary of each domain.
Publications VTP: VTP uses a hierarchy of publications to distribute and synchronize VLAN configurations across the network.
VTP Modes: A switch can be configured in one of three modes: server, client, or transparent.
VTP server: VTP servers publish the VLAN information from the VTP domain to other VTP-enabled switches in the same VTP domain. VTP servers save VLAN information for the entire domain in NVRAM.
Client VTP: VTP clients function the same way as VTP servers, but can not create, change, or delete VLANs on a VTP client. A VTP client only stores the VLAN information for the entire domain while the switch is activated. A reset switch erases the information of the VLAN.
VTP transparent: transparent switches send VTP advertisements to VTP clients and servers. Transparent switches do not participate in VTP. VLANs are created, renamed or deleted on the local switches are transparent to the switch only.
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