Well, I know that's a simple question for the level of this forum, but yet, I didn't found anything on Google, at least not what I want.
I'm studying for CCNA R&S and I just learned about Virtual Interfaces.
And now the question: I have ge0/0 and ge0/0.30. If the physical interface(g0/0) flaps, it automatically happens the same with the virtual one? Or there's a complete independence between them?