2

If two switches are connected, one with switchport mode trunk and the other with switchport mode dynamic desirable, will both switches form an operational trunk?

1

If two switches are connected, one with switchport mode trunk and the other with switchport mode dynamic desirable, will both switches form an operational trunk?

Yes, the switchports will form a trunk as switchport mode trunk does not disable DTP.

A switchport configured with switchport mode dynamic auto will also negotiate as a trunk if the connected switchport is configured with switchport mode trunk.

  • 3
    In addition, if two switches with switchport mode dynamic desirable are connected to each other, the switches will also form a trunk. The list is: Trunk + Trunk = Trunk Trunk + Des = Trunk Trunk + Auto = Trunk Des + Des = Trunk Des + Auto = Trunk Auto + Auto = Access Any + Access = Access nonnegotiate + Trunk = Trunk nonnegotiate + nonnegotiate = Trunk Default is dynamic auto. – user36472 Aug 9 '17 at 11:29

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.