This object identifies the hardware chip
set being used in the interface. The
assignment of OBJECT IDENTIFIERs to various
types of hardware chip sets is managed
by the IANA. If the hardware chip set is
unknown, the object identifier
unknownChipSet OBJECT IDENTIFIER ::= { 0 0 }
is returned. Note that unknownChipSet is a
syntactically valid object identifier, and
any conformant implementation of ASN.1 and
the BER must be able to generate and
recognize this value.