Native VLAN

[Netomaniac]

Hi Geeks,

Its a simple ques?, but I don't know the answer. Why do we need a native VLAN on a trunk other than specifying the port as Trunk mode.

Neto...!!

 

[baddos]

Yes, however most vendors have one on as default.

The native VLAN is very important as it contains the spanning tree traffic among other things.

 

[robertjo24]

All inter switch and router management communications happen across the native VLAN.

 

[Netomaniac]

Thanks Guys...!!

Two most important functionality is,

1) Spanning Tree
2) Router management Traffic

Neto...!!

 

[burtsbees]

ALL trunking info (vlan tagging, pruning, VTP, etc.). Not just STP and for management---vlans simply cannot span multiple switches without a trunk!

Burt