switchport no negoiate

Answered Question
Feb 3rd, 2010

Hi

can anyone tell me if I set my port to access, or trunk manually, do I still need to use the no negoiate command? if in access/trunk mode would they still send dtp frames ?

cheers

Correct Answer by milan.kulik about 7 years 3 weeks ago

Hi,

yes, if you want the port to stop sending DTP frames, use switchport nonegotiate command.

See

"If you enter access mode, the interface goes into permanent nontrunking mode and negotiates to convert the link into a nontrunk link even if the neighboring interface does not agree to the change.

If you enter trunk mode, the interface goes into permanent trunking mode and negotiates to convert the link into a trunk link even if the neighboring interface does not agree to the change."

"When you are using the nonegotiate keyword, DISL/DTP negotiation packets will not be sent on the interface. The device will trunk or not trunk according to the mode parameter given: access or trunk. "

in http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.1/20ew/command/reference/snmp_vtp.html#wp1114663

HTH,

Milan

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Correct Answer
milan.kulik Wed, 02/03/2010 - 04:42

Hi,

yes, if you want the port to stop sending DTP frames, use switchport nonegotiate command.

See

"If you enter access mode, the interface goes into permanent nontrunking mode and negotiates to convert the link into a nontrunk link even if the neighboring interface does not agree to the change.

If you enter trunk mode, the interface goes into permanent trunking mode and negotiates to convert the link into a trunk link even if the neighboring interface does not agree to the change."

"When you are using the nonegotiate keyword, DISL/DTP negotiation packets will not be sent on the interface. The device will trunk or not trunk according to the mode parameter given: access or trunk. "

in http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.1/20ew/command/reference/snmp_vtp.html#wp1114663

HTH,

Milan

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