GGSN缩写的意思

SFB AFC ABDL CSE ppm DCT DFSK CPM ASC FCN ESC CAI DTP EF APARS mcu SSG DPON AJG DFOS DL DS CNCC DVVI STB DVC GIMM CTDM CRC DCN AP EAF S3 DTD IS-IS NDS GPS QDOS RIP Bps RAID FED ETE EFCI CPS SOC CICS CC NCBA ASI UMTS GDPS EELS EWT APADAS IM EEROM MADP IOB SSM