This read-only DisplayString of up to 160 characters holds the first part of the actual logged message text (excluding timestamp) for a persistent log-file entry, used because a full message can exceed a single field's length. Admins read it, together with any continuation in rlSyslogLogText2 through 4, to see the complete human-readable description of what happened. For example, an admin reading a long link-down diagnostic message reads this field as the beginning of the text and checks rlSyslogLogText2 for its continuation.