This read-only Counter64 counts the total number of received IGMP queries this PM instance discarded, for any reason. Admins treat it as a rollup alarm — a nonzero value means one of the specific reason-coded QueryDiscards counters on this same instance is climbing and worth checking individually; because it is drawn from the current, still-open 24-hour bin for today, the number keeps climbing until midnight rollover, so it should be read as "so far today" rather than a finished daily total. On a subscriber-facing IPTV access port, a count of 1,344 over today so far is the kind of number an admin would trend against the join/leave rate on the same port to judge whether it's normal channel-surfing or an anomaly worth a closer look.