Multiple subsystem error reporting

To log errors of a plurality of subsystems, a master reporting tool provides a table identifying the subsystems and their interface protocol addresses with respect to a network. A subsystem reports errors, via the network, to the master reporting tool, and the reporting subsystem identifies and reports other subsystems associated with the errors, if any, to the master reporting tool. The master reporting tool employs the interface addresses of the table to request reportable data from the other subsystems identified by the originally reporting subsystem as associated with the reported error. The network may be separate from a data handling network of the data handling system.