The table specifies all lines, their passwords and their authorizations level .the table ordered lexicography by the line name. when a new line is being authenticate the search in line table is from the first entry in table till it find the first entry that fit application input line parameters .
Sources for this description
Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community)Dell MIB copies (LibreNMS/Observium Community)Netdisco MIB archive copiesNETGEAR official product and EOL MIB downloads