System and method for controlling data communication

• US 20030204512A1
• Filed: 10/21/2002
• Published: 10/30/2003
• Est. Priority Date: 04/24/2002
• Status: Abandoned Application

• Current Assignee: Communications Research Laboratory (National Institute of Information and Communications Technology)
• Original Assignee: Communications Research Laboratory Independent Administrative Institution
• Inventors: Atarashi, Rei
• Application Number:
  US10/274,123
• Publication Number:
  US 20030204512A1
• Time in Patent Office: Days
• US Class Current: 707/100
• CPC Class Codes: H04L 47/2441 relying on flow classification, e.g. using integrated services [IntServ]
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

The present invention enables control to be prioritized based on data content over a network such as the Internet. In the present invention, a data sending unit adds metadata relating to data content upon data, decides priority of resources based on metadata while referring to a metapolicy, generates a packet, and sets priority at a part of the header information of the packet. A data transmission unit then refers to a DSCP table and then transmits or discards the packet based on communication control based on priority set at the packet.

Claims

1. A data communication control method for carrying out data communication control over a network, comprising the steps of:

adding metadata related with data that is a subject of communication to the data;

referring to a metapolicy making the metadata and a transmission priority correspond, deciding a transmission priority of the data based on the metadata, and setting the transmission priority in a part of packet header information generated from the data; and

referring to a communication control table making communication control behavior correspond with each transmission priority, and deciding data packet transmission order based on the transmission priority.

6. A data communication control program recording medium recorded with a data communication control program for implementing steps for implementing the data communication control method as disclosed in claim 1 on a computer.

2. A data communication control system for carrying out data communication control comprising a data sending unit for sending data over a network and a data transmission unit for transmitting the data in accordance with header information of the received data,

wherein the data sending unit comprises:

metapolicy storage means for storing metadata relating to the content of the data and a metapolicy making the metadata and a transmission priority correspond; and

priority assigning means for referring to the metapolicy, deciding a transmission priority of the data based on the metadata, and setting the transmission priority in a part of packet header information generated from the data; and

wherein the data transmission unit comprises;

communication control table storage means for storing a communication control table making communication control correspond with each transmission priority; and

priority determining means for receiving the packet, referring to the communication control table, and determining priority of the data based on the transmission priority set in the header information.

3. A data communication control system according to claim 2, wherein the data sending unit comprises metadata adding means for adding metadata defined based on the content of the data that is a subject of communication to the data.

4. A data sending unit for sending data over a network comprising:

metapolicy storage means for storing metadata relating to a content of data and a metapolicy making the metadata and a transmission priority correspond; and

priority assigning means for referring to the metapolicy, deciding a transmission priority of the data based on the metadata, and setting the transmission priority in a part of packet header information generated from the data.

5. A data sending unit according to claim 4, further comprising

metadata adding means for adding metadata defined based on a content of data that is the subject of communication.