A.S10-UB.S1-CC.S11-UD.S1-U
A.combined EPS/IMSI attachB.EPS onlyC.Control Plane CIoT EPS OptimisationD.NB-IoT attach
A.PGW S5S8GTPC地址B.PGW S5S8GTPU地址C.PGW DT-GTP地址D.SGW S11地址