Connection management system, and a method for linking connection management server in thin client system

• US 9,407,703 B2
• Filed: 08/03/2011
• Issued: 08/02/2016
• Est. Priority Date: 08/09/2010
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Onuma, Hiroaki
• Primary Examiner(s): Kassim, Khaled
• Application Number:
  US13/197,182
• Publication Number:
  US 20120036254A1
• Time in Patent Office: 1,826 Days
• Field of Search: 709/224
• US Class Current: 1/1
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• 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 67/141 Setup of application sessions admission control or resource allocation in data switching networks H04L47/70
• 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 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54

Abstract

An exemplary object of the present invention is to suppress the load on each server and network traffic. To achieve this, a plurality of connection management servers are installed so that any of the connection management servers executes acceptance of a connection request from a thin client terminal. Further, the connection management servers manage the states of clients in order to hold the states of the respective clients, and each of the connection management servers searches a client that can be connected by the thin client terminal according to a connection request from this thin client terminal, and replies with the search result to the thin client terminal, and a range of the connection management servers for executing the search of the client is limited for each connection request from the thin client terminal to the thin client server.

Claims

1. A connection management system comprising a plurality of connection management servers each managing a connection from a thin client terminal to a thin client server, wherein

each of the connection management servers comprises:

a server configuration information table which stores, for each of the connection management servers, identification information of a group to which the connection management server belongs;

a request window unit which accepts a connection request from the thin client terminal, selects a connection management server which executes the search of the client based on a group specified by a user, and transmits a search request to the selected connection management server; and

a connection destination management unit which receives the search request, and selects a connectable client out of target clients that can be assigned to the thin client terminal to respond to the request, wherein

the connection management servers manage states of clients in order to hold the states of the clients, and each of the connection management servers executes a search of a client available for the thin client terminal according to a connection request from this thin client terminal, and replies with the search result to the thin client terminal, and

a range of the connection management servers for executing the search of the client is limited in response to the states of the clients and a load situation of the connection management servers for each connection request from the thin client terminal to the thin client server;

and wherein each of the connection management servers undertakes acceptance of the connection request from the thin client terminal, and response of the result of selecting a connectable client, and refers to a configuration information table which stores information on each of the connection management servers, when a range of destinations of transferring the connection request from this thin client terminal is determined.

2. The connection management system according to claim 1, wherein the clients are grouped.

3. A thin client system comprising:

a plurality of thin client terminals;

a plurality of thin client servers having clients which are connected from the thin client terminals to execute applications; and

the connection management system according to claim 1.

4. A method for linking a connection management server in a thin client system having a plurality of thin client terminals, a thin client server having a client which is connected from the thin client terminals to execute applications, and the connection management server which manages connection from the thin client terminals to the thin client server,

wherein each of the connection management servers comprises:

a server configuration information table which stores, for each of the connection management servers, identification information of a group to which the connection management server belongs;

a request window unit which accepts a connection request from the thin client terminal, selects a connection management server which executes the search of the client based on a group specified by a user, and transmits a search request to the selected connection management server; and

a connection destination management unit which receives the search request, and selects a connectable client out of target clients that can be assigned to the thin client terminal to respond to the request;

the method comprising the steps of;

installing a plurality of connection management servers so that any of the connection management servers executes acceptance of a connection request from the thin client terminal;

the connection management servers managing states of clients in order to hold the states of the respective clients, and each of the connection management servers searching a client that can be connected by the thin client terminal according to a connection request from this thin client terminal, and replying with the search result to the thin client terminal; and

limiting a range of the connection management servers for executing the search of the client in response to the states of the clients and a load situation of the connection management servers for each connection request from the thin client terminal to the thin client server;

and wherein each of the connection management servers undertakes acceptance of the connection request from the thin client terminal, and response of the result of selecting a connectable client, and refers to a configuration information table which stores information on each of the connection management servers, when a range of destinations of transferring the connection request from this thin client terminal is determined.