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DTP, Dynamic Trunking Protocol, is a trunking protocol that is developed and proprietary to Cisco which is used to automatically negotiate trunks between Cisco switches. Trunk negotiations are managed by DTP only if the port is directly connected to each other.
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DTP is normally used on Cisco IOS switches to negotiate if the interface should become an access port or trunk. By default, DTP is enabled, and the interfaces of your switches will be in “dynamic auto” or “dynamic desirable” mode.
Zastrzeżony protokół DTP Cisco używany do automatycznego negocjowania tworzenia łącza Trunk między dwoma przełącznikami. Port można skonfigurować w jednym z poniższych stanów: Dynamic auto – tryb pasywny, pozwala na utworzenie stanu „Trunk”, jeśli drugi koniec aktywnie negocjuje; Dynamic desirable – tryb aktywny, pozwala na utworzenie „Trunk”;
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.
DTP is a Cisco proprietary protocol that is automatically enabled on Catalyst 2960 and Catalyst 3560 Series switches. Switches from other vendors do not support DTP. DTP manages trunk negotiation only if the port on the neighbor switch is configured in a trunk mode that supports DTP.
15 sty 2010 · The DTP is used by Cisco switches to negotiate whether an interconnection between two switches should be put into access or trunk mode. It is meant both to ease the initial deployment of a switched network and to minimize configuration errors that result from mismatched port configuration on an interconnection between two switches.
Dynamic Trunking Protocol (DTP) Configuration. So we’ve seen the static trunking configuration, switchport mode trunk. Now let’s look at the other methods. By default, it will either be auto or desirable, which are Dynamic Trunking Protocol methods. What does auto state mean?
