Abstract: An information processing system including a control apparatus and a housing includes a device that operates under control of the control apparatus, the control apparatus includes a memory that stores operability information including plural pieces of the operability information each indicate whether an device is operable under the control of the control apparatus, and a startup controller that obtains designation information designating a piece of the operability information from the housing and reads a piece of the operability information designated by the obtained designation information, wherein the startup controller requests the housing to start up the device when the read piece of the operability information indicate that the device is operable, and excludes the device from being subject to startup control when the read piece of the operability information indicates that the device is inoperable.

Abstract: In a data transmission apparatus, provisions are made to be able to trace the result of processing or discarding of a specific packet from outside the apparatus. More specifically, in a data transmission apparatus that receives data having a header and, based on information carried in the header, performs processing such as destination determination, discard processing, and priority transmission processing on the received data by using a plurality of processing blocks, a memory for storing the processing results supplied from the respective processing blocks in the data transmission apparatus is provided, wherein a flag is appended only to the data that needs tracing and only the processing result of the thus flagged data is stored in the memory, and wherein, after completing the processing, only the processing result of the flagged data is forcefully output outside the apparatus thus enabling the processing result to be retrieved.

Abstract: In a data transmission apparatus, provisions are made to be able to trace the result of processing or discarding of a specific packet from outside the apparatus. More specifically, in a data transmission apparatus that receives data having a header and, based on information carried in the header, performs processing such as destination determination, discard processing, and priority transmission processing on the received data by using a plurality of processing blocks, a memory for storing the processing results supplied from the respective processing blocks in the data transmission apparatus is provided, wherein a flag is appended only to the data that needs tracing and only the processing result of the thus flagged data is stored in the memory, and wherein, after completing the processing, only the processing result of the flagged data is forcefully output outside the apparatus thus enabling the processing result to be retrieved.