functional group (ATM) (FG)
Functional Groups (FG) are a collection of related functions supported by a single logical unit of an ATM network. Examples are RouteServer Functional Group( RSFG), Internetwork Address Sub-Group( IASG), Internetwork Coordination Functional Group( ICFG), Edge Device Functional Group (EDFG) and ATM Attached Host Functional Group( AHFG).