The configuration database detects LID 30, 31 and 32 in SLRs 128 a, 128 b and 128 c, respectively, and sends slave SRMs 37 b, 37 c and 37 d (line cards 16 a, 16 b, and 16 c) notifications including the name of the executable file (e.g., atm_cntrl.exe) to be loaded.