Hello All, I encountered the following problem on Nokia fsmf, namely the BBU-1 OFFLINE parameter. In this case, the radio unit is active, but the fsmf itself is not accessible via the transport network. As I understand it, Bbu is a mechanism for processing signals from the radio unit and other logic on the network. Sorry, I’m just starting to deal with this kind of equipment, please explain the bbu error as simply as possible and what it might be related to. Sorry for the photo quality too.