{
{    The purpose of this procedure is to receive all CC PDU's queued on the
{ given channel connection and to process them one by one.  As a result of
{ this, each PDU is pushed up to the application layer.  This procedure should
{ be called only when network input is queued on the channel connection.
{
{       NLP$CC_RECEIVE_DATA (CL_CONNECTION);
{
{ CL_CONNECTION: (input, output)  This parameter specifies the interlayer
{       structure asssociated with the channel connection.
{
