extern int sysctl_x25_reset_request_timeout;
extern int sysctl_x25_clear_request_timeout;
extern int sysctl_x25_ack_holdback_timeout;
extern int sysctl_x25_reset_request_timeout;
extern int sysctl_x25_clear_request_timeout;
extern int sysctl_x25_ack_holdback_timeout;