"No shut" with encapsulation commands

When using subinterfaces, do you use the "no shut" command with each interface or not? Is it used once or multiple times?

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dtlokee

If you're referring to subinterfaces they will be up/up hen you create them. You can shut the down but they will typically have the same status as the physical interface. If it's up, the sub interfaces are up.

Crunchyhippo

dtlokee wrote:

If you're referring to subinterfaces they will be up/up hen you create them. You can shut the down but they will typically have the same status as the physical interface. If it's up, the sub interfaces are up.

Otherwise, you would go into, say, fa 0/0 for the first time and put "no shut"; then go into the subinterface like "int fa 0/0.1" and put IP addresses, etc, at that point? But at some point the 0/0 interface has to be put into a no-shut state, and each sub-interface doesn't need a no-shut command. Is this right?

dtlokee

Yeah, just no sht the physical interface (fa0/0 or whatever it is) then go create your subinterfaces.

Crunchyhippo

dtlokee wrote:

Yeah, just no sht the physical interface (fa0/0 or whatever it is) then go create your subinterfaces.

Ok, great. I'm gathering all these little tidbits that I can; 801 test tomorrow.