DTP

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Content of the notes (1)

1. It is cisco proprietary

2. used for negotiated trunking btw switches

3. #switchport mode trunk --> forcing port to be trunk and dtp packets are send across.

DTP: Negotiate Trunking

DTP modes:

Auto : port starts with access mode and wait for DTP frame to come in

Desirable: port starts with access mode and send DTP frame out of the port.

ON:

Do not send DTP to non-cisco devices:

#switchport mode trunk

# switchport nonegotiate