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Silver

cdp

i was thinking cdp passes only by native vlan (by default vlan1). but my computer is connected to a port configured in vlan 111 and it still receive cdp. is this normal?

1 ACCEPTED SOLUTION

Accepted Solutions

Re: cdp

Hi,

CDP is not restricted to Native VLAN, Each CDP-configured device sends periodic messages to a multicast address, but the question is how do you receive the CDP packets on your PC ?

HTH,

Mohammed Mahmoud.

3 REPLIES

Re: cdp

Hi,

CDP is not restricted to Native VLAN, Each CDP-configured device sends periodic messages to a multicast address, but the question is how do you receive the CDP packets on your PC ?

HTH,

Mohammed Mahmoud.

Silver

Re: cdp

i capture it via sniffer

Gold

Re: cdp

on the switchport interface that you don't want cdp enabled on, enter the following command:

no cdp enable

or to globally disable cdp, enter:

no cdp run

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