{
{    The purpose of this request is to determine whether the Channel Connection
{ layer for this connection can be deactivated.  The layer can be deactivated
{ only if the "main" Channel Connection and all "subconnections", if any, are
{ in the closed state, and if all PDU's received by monitor for this connection
{ have been processed.  This request should only be used when a Channel
{ Connection transitions to the closed state.
{
{   NOTE:  This request is for use by the Channel Connection Entity only.
{
{
{       NLP$CC_SHUT_DOWN_CONNECTION (CONNECTION, CL_CONNECTION, DEVICE_ID)
{
{  CONNECTION: (input)  This parameter specifies the Channel Connection.
{
{  CL_CONNECTION: (input, output)  This parameter specifies the interlayer
{        connection.  The connection will be modified as a result of
{        deactivating the layer.
{
{  DEVICE_ID: (input)  This parameter specifies the identifier of the network
{        device associated with the channel connection.
{
