{
{    The purpose of this request is to transmit data over a previously
{ opened connection and bypass the normal flow controls enforced on a
{ connection.  This request will cause the delivery of an "interrupt"
{ event to the user at the other end of the connection.
{
{    NOTE: outbound connection capacity need not be sufficient to hold
{          "data".  In other words an application layer is not required
{          to ensure adequate outbound capacity before issuing this request.
{          Resources beyond outbound capacity exist for interrupt
{          requests, but the resource is limited and hence the "supervisory
{          traffic limit" condition.  Generally, a "supervisory traffic
{          limit" condition will occur if the connection peers are not
{          responding according to protocol.
{
{       NLP$SL_INTERRUPT_REQUEST (XNS_CONNECTION, DATA, STATUS)
{
{ XNS_CONNECTION: (input) This parameter specifies the XNS connection on which
{       the interrupt is to be sent.
{
{ DATA: (input) This parameter specifies 1 to 14 bytes of data to be delivered
{       with the "interrupt" event.
{
{ STATUS: (output) This parameter specifies the request status.
{       CONDITIONS: nae$connection_not_open, nae$data_area_too_small,
{                   nae$invalid_request, nae$max_data_length_exceeded,
{                   nae$protoco_error, nae$supervisory_traffic_limit.
{       IDENTIFIER: 'NA'
{
