This read-only Counter reports the number of bytes received during the session when this entry represents a session disconnect or logout, and reads 0 for all other record types. Admins pair it with acctEntrySentBytes to build a picture of total traffic volume for a completed terminal session, useful for spotting unusually large data transfers. For example, an acctEntryReceivedBytes value far larger than acctEntrySentBytes on the same disconnect entry would suggest that session was mostly downloading data rather than sending it.