From: Mushtaq A. Khan (mak.ccie2b@gmail.com)
Date: Sun Mar 12 2006 - 02:17:09 GMT-3
On Non Trunk ports only "Switchport mode access" will disable the DTP. To
disable VTP traffic, you'll need to configure "VTP Transparent" on both
switches. "Switchport nonegotiate" can be used on trunk ports to disable
autonegotiation.
*NON-TRUNK PORT:*
sw2#sh int f1/0/7 switch | inc Negotiation
*Negotiation of Trunking: On*
sw2(config)#int f1/0/7
sw2(config-if)#sw mod acc
sw2(config-if)#end
sw2#sh int f1/0/7 switch | inc Negotiation
*Negotiation of Trunking: Off*
**
*TRUNK PORT:*
sw2#sh int f1/0/23 switchport
Name: Fa1/0/23
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
*Negotiation of Trunking: On*
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
....
sw2(config)#int f1/0/23
sw2(config-if)# sw nonegotiate
sw2(config-if)#end
sw2#sh int f1/0/23 switchport
1w1d: %SYS-5-CONFIG_I: Configured from console by console
sw2#sh int f1/0/23 switchport
Name: Fa1/0/23
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
*Negotiation of Trunking: Off*
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
....
HTH,
Mushtaq
On 3/11/06, jnkmail4eva@yahoo.com <jnkmail4eva@yahoo.com> wrote:
>
> What if port f0/5 to f/10 are not trunk ports but access ports.
> Question states that to block all vtp and dtp broadcast traffic on the
> above listed ports.
>
> so th following should work
>
> interface range f0/5 - 10
> switchport mode acess
> switchport trunk non-negotiate
>
>
> and since these ports are not trunk ports, they will not broadcast any vtp
> traffic.
>
> Am I right in my solution ?
> Please advice.
>
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