On the basis of filters defined by a user, SQL statements are built. Then, their result of work is suitable interpreted. Each command is generated using a single filter. In the first order during a statement generating, the entires from Group by group of Report Manager Configurator are processed, according to an order of entries which is given in a configuration. Next, the entries from Custom filters group are used, and at the end the entries of Rules group. The Field columns for all three groups include a list of the fields, that characterized entries about SNMP Trap messages.

After building of SQL command, it is executed and each row of its result is interpreted using entries of Group by group and Custom filters one. At the beginning interpretation is executed with the aid of entries of Group by group. Each entry of the group corresponds with a single column of command result, that contents is interpreted according to a specification of Treat as and Show fields of a given entry.

Treat as field can take on the following values: BGPPEER, NETINTERFACE, OBJECT, PINGOBJECT. The field also can be empty (--skip-- option of Report Manager Configurator). The values shows, how the contents of next columns of command result, that create through working of entries from Group by group, will be interpreted, and then translated into names of monitored devices (i.e.: names of devices, descriptions of network interfaces, entires of BGP peers).

Show field can take on the following values: Yes, No, When others failed, If success. The values show, how the contents of next columns of command result, that create through working of entries from Group by group, will be interpreted, and if the contents is including to the result of row processing. The values Yes and No don't need an explanation. The value If success means, that it will be taken into consideration, if it isn't empty, while When others failed value means, that it will be used, when values for all entries of Group by group are empty. The entry is a type of the stand-by entry.

The interpretation of the statement result with the aid of entries from Custom filters group is generated through Filter and Result fields. A suitable column contents of the command result, that was created through working of a given entry from Custom filters group, is parsed according to contents of Filter field and translated into an inscription according to contents of Result field.

The processing of filters concerning entries about pending cases is similar to the processing of filters for SNMP Trap entries. One difference is a contents of Field columns for next three groups of each filter. In this case, Field columns include a list of fields concerning entries about pending cases.

The processing of filters concerning entires about monitored objects is made on the basis of filters defined by an administrator. Each filter includes a field describing a kind of the object which it concerns. Using the field, dreportd knows, where it will find entries concerning this kind of objects. Each filter can include a list of the allowable device types, which it concerns. By this, useless information is limited, that will be able to create as result of processing of a given filter (currently it concerns only network interfaces). A user can done a specification of the allowable devices in Allowed devices group of Report Manager Configurator.