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 Answer
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.– user36472Aug 9, 2017 at 11:29