{
{
{    The purpose of the request is to initialize a data description which
{ describes an application's message buffer.  The resulting data description is
{ used to fragment the application's message into units acceptable to the
{ underlying network.
{
{       NLP$AL_INITIALIZE_DATA_DESCRIP (DATA, DATA_LENGTH, DATA_DESCRIPTION)
{
{  DATA: (input)  This parameter specifies the application's message buffer.
{
{  DATA_LENGTH: (input)  This parameter specifies the number of bytes in the
{        application's message buffer.
{
{  DATA_DESCRIPTION: (output)  This parameter specifies the data description to
{        be initialized.
{
