This read-only integer reports the average receive signal level, in dBm, the link interface measured across the entire previous 24-hour period. An engineer uses this single daily figure as a quick, high-level summary of the link's overall RF condition for that day, without needing to review all 96 individual intervals. For example, logging wvlinkTotalAverageRSL each day over several months builds a baseline trend that can reveal slow seasonal signal variation on that hop.