SERVICE NETWORK SYSTEM AND SERVER DEVICE

• US 20090177802A1
• Filed: 03/05/2009
• Published: 07/09/2009
• Est. Priority Date: 05/11/2005
• Status: Abandoned Application

• Current Assignee: Kazuyoshi Hoshino, Kohei Sawada, Osamu Takata, Tadashi Kaji, Takahiro Fujishiro
• Original Assignee: Kazuyoshi Hoshino, Kohei Sawada, Osamu Takata, Tadashi Kaji, Takahiro Fujishiro
• Inventors: Hoshino, Kazuyoshi, Fujishiro, Takahiro, Sawada, Kohei, Takata, Osamu, Kaji, Tadashi
• Application Number:
  US12/398,613
• Publication Number:
  US 20090177802A1
• Time in Patent Office: Days
• US Class Current: 709/250
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• 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 67/1023 based on a hash applied to IP addresses or costs

Abstract

A server device that represents a plurality of service provision servers implements authentication and a SIP message exchange with respect to a SIP server as a representative, and notifies a service provision server of client communication information that is acquired by the SIP message exchange. The service provision server communicates with a client on the basis of the client communication information that is notified from the representative server.

Claims

1. A service network system, comprising:

a plurality of service provision servers that provide information services;

a session management server that executes a communication protocol for establishing and disconnecting a session according to a request from a client; and

a representative server that is representative of the plurality of service provision servers and executes the communication protocol with respect to the session management server,

wherein said plurality of service provision servers, said session management server, and said representative server are connected to a first network, and

said plurality of service provision servers and said representative server are further connected to a second network.

2. The service network system according to claim 1,

wherein said second network comprises a local area network.

3. The service network system according to claim 1,

wherein said representative server and said plurality of service provision servers communicate with each other on the second network.

4. A server device characterized by being connected to a first network together with a plurality of clients, a plurality of service provision servers that provide information services, and a session management server that executes a communication protocol for establishing and disconnecting a session according to a request from the client, by being connected to a second network together with the plurality of service provision servers, and communicating with the plurality of service provision servers on the second network, and by representing the plurality of service provision servers and executing a communication protocol with respect to the session management server on the first network.

5. The server device according to claim 4, characterized by recording a table including an encrypted algorithm and a message authentication algorithm which can be used by the plurality of service provision servers.

6. The server device according to claim 4, characterized by recording a table including the client and the service provision server that is being used when at least one of the plurality of service provision servers is being used.

7. A serve device, comprising:

a processor that is connected to a bus;

a memory that temporarily stores a program which is executed by the processor and a table to which the program refers;

an external storage device that saves the program and the table;

a first network interface that is connected to a first network; and

a second network interface that is connected to a second network,

wherein said firs network is connected with a plurality of clients, a plurality of service provision servers that provide information services, and a session management server that executes a communication protocol for establishing and disconnecting a session according to a request from the client,

said second network is connected with the plurality of service provision servers,

a client address and first client communication information which are received from the client are transmitted to the service provision server which is selected from the plurality of service provision servers on the second network, and

a service provision server address and second client communication information which are received from the selected service provision server on the second network are transmitted toward the client.