STAT_INTERVAL
sleep(STAT_INTERVAL);
cur.avg_packets / STAT_INTERVAL,
rate2str((8 * cur.avg_bytes) / STAT_INTERVAL));
cur.avg_packets / STAT_INTERVAL,
rate2str((8 * cur.avg_bytes) / STAT_INTERVAL));
cur.avg_packets / STAT_INTERVAL,
rate2str((8 * cur.avg_bytes) / STAT_INTERVAL));