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cdp and vtp

hello guys..help me plz.. how cdp and vtp packet crossing over trunk switch affected? do they must cross over native vlan 1? or should run over vlan1? tx ....

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Cisco Employee

Re: cdp and vtp

Hi Friend,

CDP, VTP, and PAgP updates are always forwarded on trunks with a VLAN 1 tag. This is the case even if VLAN 1 has been cleared from the trunks and is not the native VLAN.

HTH

Ankur

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