What is the difference between untagged and tagged port ?

Hi there,
Please, What is the difference between untagged and tagged port ?
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

A untagged ethernet interface is a interface for untagged traffic i.e. a printer or workstation

A tagged port can accept tags form the connected hardware i.e. a uplink (trunk) to another switch with more vlans.

A tagged port can be a memer of more vlan's
A untagged port can be only a member of 1 vlan.

I hope this clears thing up....

Taken from:

In  short, a tagged port is a trunk port. It actually tags all the passing traffic so that traffic pertaining to a particular vlan is never lost. As you know, trunk port carries traffic from different vlans, so they need tagging to be identified at the remote end so that they are segregated properly.

A switch port, which belong to a single vlan is untagged port, because it will pass traffic for one and only one vlan only. Hence no tagging required. So untagged.

Generally, a tagged port is a trunk port, that is, multiple VLANS exist on that port. Each VLAN gets an ID (tag) when there are multiple VLANs on a port to separate traffic from these VLANS. The ports that belong to only one VLAN, there is no need for tagging, hence they are called untagged ports.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Switches / Hubs

From novice to tech pro — start learning today.