-- the Transmission group -- Based on the transmission media underlying each interface -- on a system, the corresponding portion of the Transmission -- group is mandatory for that system. -- When Internet-standard definitions for managing -- transmission media are defined, the transmission group is -- used to provide a prefix for the names of those objects. -- Typically, such definitions reside in the experimental -- portion of the MIB until they are "proven", then as a -- part of the Internet standardization process, the -- definitions are accordingly elevated and a new object -- identifier, under the transmission group is defined. By -- convention, the name assigned is: -- -- type OBJECT IDENTIFIER ::= { transmission number } -- -- where "type" is the symbolic value used for the media in -- the ifType column of the ifTable object, and "number" is -- the actual integer value corresponding to the symbol.