Contents delivery network service method and system

• US 20030145066A1
• Filed: 04/29/2002
• Published: 07/31/2003
• Est. Priority Date: 01/29/2002
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Igarashi, Norihiko, Okada, Akihiro, Nakahara, Hiroyuki
• Application Number:
  US10/133,745
• Publication Number:
  US 20030145066A1
• Time in Patent Office: Days
• US Class Current: 709/219
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/35 involving non-standard use of addresses for implementing network functionalities, e.g. coding subscription information within the address or functional addressing, i.e. assigning an address to a function
• CPC Class Codes: H04L 61/45 Network directories; Name-to-address mapping
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/1021 based on client or server locations
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/288 Distributed intermediate devices, i.e. intermediate devices for interaction with other intermediate devices on the same level
• CPC Class Codes: H04L 67/289 Intermediate processing functionally located close to the data consumer application, e.g. in same machine, in same home or in same sub-network
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04L 67/563 Data redirection of data network streams
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/61 taking into account QoS or priority requirements
• CPC Class Codes: H04L 67/63 Routing a service request depending on the request content or context
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

When a user accesses an original server using a user PC, a router in a center receives a user access request, and transmits it to a reception and authentication server, and inquires of a CDN management server whether or not the request can be accepted. When the CDN management server 1 determines that the user access request can be accepted, it detects a splitter/cache server geographically closest to the user PC, and passes a one-time password to the splitter/cache server. The user PC uses the one-time password to access the splitter/cache server, and successfully accesses the target contents.

Claims

1. A contents delivery network method for delivering to a user a copy of original contents in server each holding a copy of the original contents instead of the original contents by distributing the servers to geographically different areas, comprising:

obtaining an area of a user according to a user IP address;

storing an address of each of the servers holding a copy of the original contents and area information about the servers; and

obtaining an address of a server to be used according to the obtained area of the user.

2. The method according to claim 1, further comprising:

detecting a use of a user such that when the user refers to data, the user is allowed to access the server holding the copy of the original contents, and when the data is amended, the server is allowed to access the original contents.

3. The method according to claim 1 or 2, further comprising:

the user measuring a transmission line available band between a server to be used by the user and a terminal to be used by the user, and determining whether or not a communications speed condition defined by the service is satisfied; and

delivering the contents to the terminal of the user by the server to be used depending on the use when the communications speed condition is satisfied as a result of the determination.

4. The method according to claim 1, further comprising:

in delivering the contents, billing the user and the truster of delivering the contents depending on service quality based on a use record and an available band of a transmission line.

5. The method according to claim 1, further comprising:

an authentication server notifying a user of a one-time password and an address of a server to be used depending on a use when the user tries access.

6. A contents delivery network system for delivering to a user a copy of original contents in server each holding a copy of the original contents instead of the original contents by distributing the servers to geographically different areas, comprising:

a unit obtaining an area of a user according to a user IP address;

a storage unit storing an address of each of the servers holding a copy of the original contents and area information about the servers; and

a unit obtaining an address of a server to be used according to the obtained area of the user.

7. The system according to claim 6, further comprising:

a user use detection unit detecting a use of a user such that when the user refers to data, the user is allowed to access the server holding the copy of the original contents, and when the data is amended, the server is allowed to access the original contents.

8. The system according to claim 6 or 7, further comprising:

a determination unit of the user measuring a transmission line available band between a server to be used by the user and a terminal to be used by the user, and determining whether or not a communications speed condition defined by the service is satisfied; and

a unit delivering the contents to the terminal of the user by the server to be used depending on the use when the communications speed condition is satisfied as a result of the determination.

9. The system according to claim 6, further comprising:

a unit, in delivering the contents, billing the user and the truster of delivering the contents depending on service quality based on a use record and an available band of a transmission line.

10. The system according to claim 6, further comprising:

a notifying unit of an authentication server notifying a user of a one-time password and an address of a server to be used depending on a use when the user tries access.

11. A computer program used to direct a computer to perform a method comprising:

obtaining an area of a user according to a user IP address;

storing an address of each of the servers holding a copy of the original contents and area information about the servers; and

obtaining an address of a server to be used according to the obtained area of the user.

12. The program according to claim 11, further comprising:

detecting a use of a user such that when the user refers to data, the user is allowed to access the server holding the copy of the original contents, and when the data is amended, the server is allowed to access the original contents.

13. The program according to claim 11, further comprising:

the user measuring a transmission line available band between a server to be used by the user and a terminal to be used by the user, and determining whether or not a communications speed condition defined by the service is satisfied; and

delivering the contents to the terminal of the user by the server to be used depending on the use when the communications speed condition is satisfied as a result of the determination.

14. The program according to claim 11, further comprising:

in delivering the contents, billing the user and the truster of delivering the contents depending on service quality based on a use record and an available band of a transmission line.

15. The program according to claim 11, further comprising:

an authentication server notifying a user of a one-time password and an address of a server to be used depending on a use when the user tries access.