Use this question for struts-config related questions.
The struts-config.xml configuration file is a link between the View and Model components in the Web Client. It plays an important role in building both Controller components and Application-specific configurations.
This file is created to every application in the format as <module>-struts-config.xml
, where can be topo, fault, perf and so on. For example, a struts-config.xml file of the fault module is represented as fault-struts-config.xml and is present in /webclient/fault/conf directory.
Attribution : http://www.webnms.com/webnms/help/developer_guide/web_client/web_struts_config.html