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One Comment on “Which two protocols can be automatically negotiated between switches for trunking?

  1. ploiesti says:

    There are two protocols that can be used for trunking: Inter-Switch Link (ISL) and 802.1Q. We can choose which protocol to run by the “switchport trunk encapsulation “. After that we can configure trunking mode with the “switchport mode trunk” command.

    In fact this question is not clear and may cause confusion because Dynamic Trunking Protocol (DTP) is the protocol that can automatically negotiate for trunking.

    Note: The DTP options can be dynamic auto, dynamic desirable, and trunk.




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