CHAPTER 14. VLAN Trunking Protocol
Introduction
Virtual local area networks (VLANs) allow network administrators to secure and more efficiently manage switched networks. Devices such as computers that are physically connected to the same switch can be logically separated through the use of VLANs. When a Cisco switch is configured, there can be several VLAN databases created on that switch. Most network infrastructures have more than one switch. What VLAN Trunking Protocol (VTP) does is allow devices on different physical switches to be connected to the same logical network or VLAN. Without the VTP, each switch would operate independently of each other with their own unique databases. VTP allows switches on a network to share their VLAN database ...
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