The list of offsets to be included in the Flow Classification Offset
Group are specified as subidentifiers in the OID(after the first 2
bytes which must be 1.1). The maximal number of permissible offsets
is given by rlPolicyNumberOfOffsetsPerFlowClassificationOffsetGroup.
The maximal value that an offset can have is
rlPolicyFlowClassificationOffsetGroupMaximumOffset.