Dynamic Trunk Protocol (DTP)

[nnn_sss22]

Hello

When we create trunk port that time we set manually encapsulation protocol.

my question is this. when DTP will use? if we set encapsulation manually then also DTP will run? or DTP will disable.

By default DTP is on or off? how we can see it. it is on or off. thanks

Regards

[Julio E. Moisa]

Hi

DTP is disabled if:

Switchport mode access is configured, switchport mode trunk with nonegotiate or if the port is configured with 'no switchport', By default DTP is enabled.

This link has good explanation:

http://packetlife.net/blog/2008/sep/30/disabling-dynamic-trunking-protocol-dtp/

Hope it is useful

:-)

[nnn_sss22]

My question is if we have set these commands then DTP will be off? because we are setting manually encapsulation.

Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk encapsulation dot1q

[Jon Marshall]

Read the link provided, the answer to your question is there.

Jon