This managed object is used for identify the target on which
the operation should be performed. The target is encoded as:
Byte 1: the octet specifies a set of eight chassis, chassis 0 through 7
Byte 2~3: each octet specifies a set of eight slots, with the
first octet specifying slots 1 through 8 and the second
octet specifying slots 9 through 16.
Byte 4: reserved
Byte 5~11:each octet specifies a set of eight ports, with the first
octet specifying ports 1 through 8, etc.