[Description] This is the actual name given to this device. Generally is matches the file name. In this case, the DEVICE is ifn_bridge1 and the file name is ifcfg-ifn_bridge1. This matching of file name to device name is by convention and not strictly required. [Variable] 
DEVICE
D E V I C E
T Y P E
N M _ C O N T R O L L E D
B O O T P R O T O
I P A D D R
N E T M A S K
G A T E W A Y
D N S 1
D N S 2
D E F R O U T E