in this video, I have explained about the Q-in-Q. And how to configure Q-in-Q in Alpha Bridge Switch (AS200/10/T).
The commands I use in this video will work on almost all switches.

What is Q-in-Q?
Why Q-in-Q is used?
Where Q-in-Q is used?
How to configure Q-in-Q?

for more information check our website: www.alphabridge.tech.
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