This read-only integer reports the current total number of entries stored in the bridge's acquired (learned) address database. An admin monitors this to gauge how full the learning table is relative to acqMaxEntries, since an acquired database nearing capacity can start dropping new dynamic learning. For example, if acqTotalEntries approaches the value reported by acqMaxEntries on a bridge serving a large segment with many hosts, the admin would consider whether the ageing time needs shortening to make room for new entries.