[c-nsp] VTP and shared medium

[Hitesh Vinzoda]

Hi Victor,

Can you post the configuration on the other end. Seems like it hasn't
negotiated the trunk. Further you can also DTP using below command

Switchport nonegotiate

Thanks
Hitesh Vinzoda


On Fri, Dec 21, 2012 at 9:50 AM, Victor Sudakov <vas at mpeks.tomsk.su> wrote:

> >
> > I have configured a VTP domain and a VTP password on all the switches,
> > however changes to the vlan database and other VTP information are not
> > propagated to all the switches, or sometimes to some of the switches.
>
> The possible reason is that some ports are in access mode though
> configured for trunk mode? Why could that be?
>
> !
> interface GigabitEthernet0/1
>  switchport trunk encapsulation dot1q
>  switchport mode trunk
>
> #sh int GigabitEthernet0/1 switchport
>
> Switchport: Enabled
> Administrative Mode: trunk
> Operational Mode: static access
> Administrative Trunking Encapsulation: dot1q
> Operational Trunking Encapsulation: native
> Negotiation of Trunking: On
> Access Mode VLAN: 1 (default)
>
> Why is the port in static access mode while it is configured as
> "switchport mode trunk" and has the administrative mode "trunk"?
>
> --
> Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
> sip:sudakov at sibptus.tomsk.ru
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