How and where to use native vlan?

Question

Cisco

Hello, can you please give an example of using native vlan , I understand how native vlan works, but I don’t understand how and where to apply it?

Answer 1

Well, it's just such a mechanism, where to apply - you know better. I had an experience when there is a switch, there are a lot of different vlans on it, which I am reluctant to deal with, then I did a native on the upstream. Or there was another case - they set up equipment without coordinating vlans, and on the other hand, specific vlans are configured, you do native on your own and get control. Or there is a screaming phone with a trunk port, a computer is connected to it, and you don’t know the vlans, you make a native one and everyone gets into one vlan. Or there was another case: a chain of switches managed-unmanaged-managed, unmanaged vlans passes in transit, but it’s weird, I had to configure the native.
But in general, the practice is vicious. It is actively used where one switch is in your area of ​​​​responsibility, but adjacent equipment is not (or you have just been charged with it)

Answer 2

For example, you will be using VoIP phones that do not understand VoiceVlan. Then the port must be configured as hybrid, phone traffic will be sent by the tag, and PC traffic will go to native.

Answer 3

native vlan = untagged vlan
actually this is the vlan for the access port.

Answer 4

For example, a port, which is usually a trunk port, but sometimes you need to plug something into it in an access, a normal computer, for example.
Here is what will fly without a tag to this port, inside the switch it will be marked with this native vlan