Native VLan

[Rupesh Kashyap]

Why We need Native Vlan ?

[Jon Marshall]

Rupesh

On an 802.1q trunk link all vlans are tagged with a vlan ID except for the native vlan which is sent without a vlan ID.

The reason for the native vlan is to provide backwards compatability with older switches that do not understand 802.1q.

Jon

[cgunaratna]

Hi Rupesh is correct,

Just an addition,

for some reason

If you want, you could make any vlan as native VLAN by issuing eg. native vlan 5

Thanks

[lamav]

Hi:

I think you meant to say that Jon is correct...:-)

[cgunaratna]

Thats right dear,

another thing native vlan will be default to vlan 1 unless otherwise specified by command

thanks