This read-write integer, ranging from 1 to 10240 with a default of 512, sets the maximum number of entries allowed in the IP accounting table. Admins raise or lower this value to control memory usage versus visibility, since a low threshold could cause the table to fill and drop new source-destination pairs during busy periods. For example, an admin monitoring a high-traffic router might raise the threshold from 512 toward 10240 to capture more distinct src-dest flows.