Data processing system and data processing method

A data processing system comprising:

• a user management apparatus configured to manage information of a user requesting use of a service, and transfer control of a packet received from the user;
• one or more data processing devices configured to perform data processing of a service function for data included in the packet;
• one or more data transfer devices configured to control the one or more data processing devices under control;
• a communication management apparatus configured to calculate a route of a service chain for implementing the service requested by the user, transmit route information of the route to the user management apparatus, and update a routing table registered in one or more first data transfer devices among the one or more data transfer devices based on the route calculation, the one or more first data transfer devices being on the route of the service chain;
• and
• an external transmission apparatus configured to return, to the user, a processed packet, the processed packet being the packet that has undergone data processes of the service chain,
• wherein the user management apparatus is further configured to add to the packet received from the user, a tag in which the route information is described, and transmit the packet to the one or more first data transfer devices on the route of the service chain,
• wherein the one or more data transfer devices are further configured to transfer the packet to the one or more data processing devices or another data transfer device on the route of the service chain based on the route information included in the tag and the routing table, and
• wherein the one or more data processing devices are configured to return the processed packet to a transmission source of the packet among the one or more data transfer devices.

A data processing method comprising:

• transmitting, by a user management apparatus, information of a user applying for a service to a communication management apparatus and an external transmission apparatus;
• calculating, by the communication management apparatus, a route of a service chain for implementing the service requested by the user, based on service information included in the information of the user, and transmitting route information to the user management apparatus, and updating a routing table registered in a data transfer device on the route of the service chain calculated based on a result of route calculation;
• adding, by the user management apparatus, a tag in which the route information is described to a packet received from the user and transmitting the packet to one or more first data transfer devices of the one or more data transfer devices on the route of the service chain;
• transferring, by the data transfer device, the packet to the one or more first data processing devices or another data transfer devices on the route of the service chain based on the route information included in the tag and the routing table managed by a self-device;
• performing, by the data processing device, processing of a service function for data included in the packet to generate a processed packet, and returning the processed packet to a transmission source of the packet among the one or more data transfer devices;
• and
• returning, by the external transmission apparatus to the user, a processed packet.