void sctp_send_shutdown (sctp_connection_t * sctp_conn);
void sctp_send_shutdown_ack (sctp_connection_t * sctp_conn, u8 idx,
vlib_buffer_t * b);
void sctp_send_shutdown_complete (sctp_connection_t * sctp_conn, u8 idx,
vlib_buffer_t * b0);
void sctp_send_heartbeat (sctp_connection_t * sctp_conn);
void sctp_send_shutdown (sctp_connection_t * sctp_conn);
void sctp_send_shutdown_ack (sctp_connection_t * sctp_conn, u8 idx,
vlib_buffer_t * b);
void sctp_send_shutdown_complete (sctp_connection_t * sctp_conn, u8 idx,
vlib_buffer_t * b0);
void sctp_send_heartbeat (sctp_connection_t * sctp_conn);