This read-only Counter64 counts queries discarded specifically because they arrived before the minimum allowed interval since the previous query. This typically flags a misconfigured or rogue second querier flooding queries faster than the IGMP query interval allows — a cause the general QueryDiscards counter on this instance would not distinguish; because it is drawn from the most recently completed short-interval historical bin, it is a closed record of the interval right before the current one, useful for checking whether a problem seen right now had already started in the previous window. On an access port serving a multi-dwelling unit, a count of 3,403 over the last completed collection window 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.