change native vlan globaly on 3560|
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Posted by colin c. on January 5, 2007, 2:08 pm
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i'm just currently trying to change my native vlan, following works, but is it possible to change it globaly? interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport trunk native vlan 2 switchport trunk allowed vlan 2,20 switchport mode trunk is it true that cdp advertises always with the lowest active vlan? had a funny experince with it. cheers colin | |||||||||||||
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Posted by on January 5, 2007, 2:16 pm
Please log in for more thread options colin c. wrote: Maybe you would like interface range fa 0/1 - 24 Note "[space][dash][space]" You can use commas too:- int ra fa 0/2,5,7 I forget the "space" protocol in that case. "[space][comma][space]" no spaces?? | |||||||||||||
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Posted by headsetadapter.com on January 6, 2007, 12:46 pm
Please log in for more thread options CDP protocol does not care about VLANs. CDP is placed "between" Layer1 and
Layer2 of OSI model. So, switches and routers will see each other (sure, if CDP is enabled on port/interface) no matter what VLANs are configured on the port. In addition, speaking about "native VLAN". The "native VLAN" is a VLAN, which will be used to mark a packet, which has no VLAN tag. It means, if switch sees a frame without a VLAN tag, it will mark it with the "native VLAN", and then send to the port. It has nothing to do with CDP. Good luck, Mike ------ Cisco IP Phone Headset Adapters www.ciscoheadsetadapter.com > dear ng,
> > i'm just currently trying to change my native vlan, following works, but > is it possible to change it globaly? > > interface FastEthernet0/1 > switchport trunk encapsulation dot1q > switchport trunk native vlan 2 > switchport trunk allowed vlan 2,20 > switchport mode trunk > > is it true that cdp advertises always with the lowest active vlan? had a > funny experince with it. > > cheers colin > > > > > | |||||||||||||
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>
> i'm just currently trying to change my native vlan, following works, but is
> it possible to change it globaly?
>
> interface FastEthernet0/1
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 2
> switchport trunk allowed vlan 2,20
> switchport mode trunk
>
> is it true that cdp advertises always with the lowest active vlan? had a
> funny experince with it.
>
> cheers colin