11.1.12 DL_DISCONNECT_REQ--Disconnects a Connection

Used to disconnect a connection. Can be used to disconnect an active connection (in state DL_DATAXFER), to refuse an incoming connection (which was indicated by the reception of a DL_CONNECT_IND primitive), or to cancel a previous DL_CONNECT_REQ primitive before the DL_CONNECT_CON acknowledgment is received back from the other end.

When the user issues this primitive, one of two things will happen, depending on the state that the stream is in:

1. In state DL_DATAXFER or if cancelling a previous DL_CONNECT_REQ, a DISC command frame is sent across the network to the destination.

2. If refusing an incoming connection, a DM response frame is sent (in response to the SABME that was received earlier).

Associated Structure

This message consists of one M_PROTO message block containing the following structure:

typedef struct {
        t_uscalar_t     dl_primitive;   /* DL_DISCONNECT_REQ */
        t_uscalar_t     dl_reason;      /* norm., abnorm., perm. or trans. */
        t_uscalar_t     dl_correlation; /* association with connect_ind */
} dl_disconnect_req_t;

The fields associated with the dl_disconnect_req_t structure are:

Errors