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  • Ankur Sood thinks this is interesting:

You should always hard code all access ports because it reduces the amount of delay introduced by Dynamic Trunking Protocol (DTP) negotiation when a port is first initialized. DTP is used to negotiate whether or not a trunk will form and adds a small amount of delay before a port moves into a forwarding state.

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Cover of CCNP Self-Study CCNP Practical Studies: Switching

Note

Dynamic Trunking Protocol