VTP (VLAN Trunking Protocol)

VTP (VLAN Trunking Protocol) is a network protocol used by switches to automatically share and manage VLAN (Virtual Local Area Network) information across multiple devices. It simplifies network management by ensuring all switches in a network have consistent VLAN configurations, reducing manual setup errors. When changes are made on one switch, VTP propagates those changes to others, maintaining synchronization. This helps in organizing and segmenting networks efficiently, improving security and performance, especially in large or complex network setups.