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Not to be confused with VLAN Trunking Protocol.
Dynamic Trunking Protocol
Communication protocol
Abbreviation
DTP
Purpose
Trunk negotiation
Developer(s)
Cisco Systems
Introduction
1990s ()
OSI layer
Link layer
The Dynamic Trunking Protocol (DTP) is a proprietary link layer protocol developed by Cisco Systems for the purpose of negotiating trunking on a link between two VLAN-aware switches, and for negotiating the type of trunking encapsulation to be used. VLAN trunks formed using DTP may utilize either IEEE 802.1Q or Cisco ISL trunking protocols.[1]
DTP should not be confused with VTP, as they serve different purposes. VTP communicates VLAN existence information between switches. DTP aids with trunk port establishment. Neither protocol transmits the data frames that trunks carry.
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2022), Transmission Control Protocol (TCP), Internet Engineering Task Force, retrieved 20 December 2022 User Datagram Protocol, Internet Engineering Task...
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