I want to restore disabled&down interface due to LLCF.

Interface 1.1, 1.2 was up to vlan group.

I set llcf to each other on these interfaces, and when 1.1 was subtracted, the state of 1.2 was disabled.

Even if I try 1.1 again, 1.1 is disabled and 1.2 is down.

I want to restore it to up, up. Please tell me how