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Requesting All Configuration Objects of a Specific Type Using the Junos XML Protocol


In a Junos XML protocol session with a device running Junos OS, to request complete information about all configuration objects of a specified type in a hierarchy level, a client application emits a <get-configuration> tag element that encloses the tag elements representing all levels of the configuration hierarchy from the root (represented by the <configuration> tag element) down to the immediate parent level for the object type. An empty tag represents the requested object type. The entire request is enclosed in an <rpc> tag element.

This type of request is useful when the object’s parent hierarchy level has child objects of multiple types and the application is requesting just one of the types. If the requested object is the only possible child type, then this type of request yields the same output as a request for the complete parent hierarchy (described in Requesting a Configuration Hierarchy Level or Container Object Without an Identifier Using the Junos XML Protocol).

When the application requests Junos XML-tagged output (the default), the Junos XML protocol server returns the requested objects in <configuration> and <rpc-reply> tag elements. For information about the attributes in the opening <configuration> tag, see Specifying the Source for Configuration Information Requests in a Junos XML Protocol Session.

To specify the source of the output (candidate or active configuration) and request special formatting of the output (for example, formatted ASCII or JSON or an indicator for identifiers), the application can include attributes in the opening <get-configuration> tag, its opening <junoscript> tag, or both. For more information, see Specifying the Source for Configuration Information Requests in a Junos XML Protocol Session and Specifying the Output Format for Configuration Data in a Junos XML Protocol Session.

The application can also request additional configuration elements of the same or other types by including the appropriate tag elements in the same <get-configuration> tag element. For more information, see Requesting Multiple Configuration Elements Using the Junos XML Protocol.