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?
If two switches are connected, one with
switchport mode trunkand the other withswitchport 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.
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3In 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 = TrunkTrunk + Des = TrunkTrunk + Auto = TrunkDes + Des = TrunkDes + Auto = TrunkAuto + Auto = AccessAny + Access = Accessnonnegotiate + Trunk = Trunknonnegotiate + nonnegotiate = TrunkDefault is dynamic auto. – user36472 Aug 9 '17 at 11:29
