DTP (Dynamic Link aggregation Protocol)

DTP (Dynamic Link aggregation Protocol)
The dynamic link aggregation protocol (DTP) of DTPDTP (dynamic trunking protocol) is a Cisco private Point-to-Point protocol used to dynamically negotiate the port type as Access or Trunk. To complete automatic negotiation, Port 2 must be in the same VTPdomain. The DTP frame is sent every 30 s. The protocol is negotiated only between switches. Port DTP-type wkiom1xzm92yy1_taaowuglng3a983.jpg configure DTPSwitch (config-if) # switchportmode? Access Set trunking mode to ACCESS unconditionallydynamic Settrunking mode to dynamically negotiate access or trunk modetrunk Set trunking mode to TRUNKunconditionally disable negotiation Switch (config-if) # switchport specified rejected in dynamic mode: conflict between 'nonegotiate' and 'dynamic 'status. verify DTPSwitch # showinterface switchportName: Fa0/1 Switchport: EnabledAdministrative Mode: dynamic autoOperationalMode: downAdministrative Trunking Encapsulation: Disable Encapsulation: nativeNegotiationof Trunking: