WO1997016793A1 - Reseau a valeur ajoutee a methode d'acces multiples - Google Patents

Reseau a valeur ajoutee a methode d'acces multiples Download PDF

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Publication number
WO1997016793A1
WO1997016793A1 PCT/US1996/017456 US9617456W WO9716793A1 WO 1997016793 A1 WO1997016793 A1 WO 1997016793A1 US 9617456 W US9617456 W US 9617456W WO 9716793 A1 WO9716793 A1 WO 9716793A1
Authority
WO
WIPO (PCT)
Prior art keywords
network
client
value added
communications
protocol
Prior art date
Application number
PCT/US1996/017456
Other languages
English (en)
Inventor
Edward A. Hafner
Terry H. Rohrer
Original Assignee
Sterling Commerce, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sterling Commerce, Inc. filed Critical Sterling Commerce, Inc.
Priority to BR9611143-7A priority Critical patent/BR9611143A/pt
Priority to AU76009/96A priority patent/AU7600996A/en
Priority to IL12430396A priority patent/IL124303A0/xx
Priority to EP96938695A priority patent/EP0870252A4/fr
Publication of WO1997016793A1 publication Critical patent/WO1997016793A1/fr
Priority to NO981979A priority patent/NO981979L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5691—Access to open networks; Ingress point selection, e.g. ISP selection
    • H04L12/5692—Selection among different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/168—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] specially adapted for link layer protocols, e.g. asynchronous transfer mode [ATM], synchronous optical network [SONET] or point-to-point protocol [PPP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/169—Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]

Definitions

  • the present invention relates generally to the field of communications applications and more specifically to communications applications allowing flexible access and multitasking capability to a value added network.
  • the needs ofthe typical computer user can no longer be met through the use of a single, isolated personal computer. Instead, users generally require communication with other components for accessing data or processing capability not available locally. These components may be present as part of a network in a typical client server architecture or they may be located anywhere throughout the world and accessible through an agreed upon communications protocol.
  • the components which are accessed from the client may be part ofthe businesses' network or they may be components operated by affiliated or unaffiliated third parties.
  • EDI Electronic Data Interchange
  • An electronic network is typically owned and operated by a third party service provider which contracts with the businesses subscribing to the electronic network.
  • E-mail electronic mail messages
  • purchase orders approvals and inventories
  • a myriad of other information through the network.
  • various levels of processing may occur within the network so as to automate the business transactions occurring between the vendor and the supplier.
  • VANs value added networks
  • VANs have made a substantial positive impact on the ability to rapidly and accurately process transactions between subscribing businesses, they do still suffer from some important drawbacks.
  • many networks operate over a single dial-up communications line.
  • the operator ofthe VAN provides subscribers with one or more communications applications which run locally on a client processor at the subscriber locations. These applications operate in conjunction with network communications applications so that data may be properly and consistently transmitted between the client and the network.
  • existing client and network applications along with their associated dial-up communications protocols are typically limited in that they may only process a single session at once. In other words, most current communications standards, with which existing network applications are designed to work, will not allow a client to interact with multiple host applications at one time.
  • both the subscriber and the EDI operator are, to some degree, at the whim of such a provider.
  • the communications provider may raise prices, provide equipment subject to failure and/or fail to provide adequate support. As will be easily recognizable, this can have a significant negative impact on the operation of both the EDI network and the subscriber's continuing business operations.
  • the availability and recent popularity ofthe Internet provides an attractive alternative to direct asynchronous dial-up access through X.25 lines. Many organizations use the Internet to interconnect private networks so that data may be exchanged between remote sites. For example, an organization having multiple sites might allow for electronic mail to be transmitted between the two sites through the Internet public network.
  • the Internet requires TCP/IP addressing in order for messages to be transmitted and universally understood.
  • a communications system which allows clients subscribing to a value added network to easily and flexibly communicate with that value added network.
  • the client may choose to connect with the network through a direct connect dial-up link such as an X.25 link or alternatively the client may connect through an Internet Protocol (LP) link.
  • LP Internet Protocol
  • a switch at the client connection is provided for accessing the value added network through either communications link.
  • the user ofthe client workstation may determine which link is appropriate while in another embodiment the communications protocol is selected automatically by the client process based upon the application accessed. Further, a portion of the communications system ofthe present invention is located at the value added network location.
  • FIGURE 1 is a diagram illustrating the operational environment ofthe communications system ofthe present invention
  • FIGURE 2 is a block diagram illustrating the client portion ofthe communications system ofthe present invention.
  • FIGURE 3 is a block diagram illustrating the value added network portion ofthe communications system ofthe present invention.
  • DETAILED DESCRIPTION OF THE INVENTION Referring to FIGURE 1, the operational environment ofthe communications system 10 ofthe present invention is shown.
  • Clients 20 communicate through either public communications network (PCN) 60 or through direct dialup connection (DDC) 70 to access data and applications resident on value added network (VAN) 90.
  • PCN 60 comprises the Internet and DDC 70 comprises an X.25 communications network running through an X.25 communications server (not shown).
  • the X.25 network may, for example, comprise an online service such as the one known as CompuServeTM operated by CompuServe, Inc., located in Columbus, Ohio.
  • the communications system may include any number of clients 20 so long as the available bandwidth and transmission resources can reasonably accommodate them.
  • VAN 90 may comprise a computer system having one or more applications, various databases and communications access to other clients 20 in the communications system 10.
  • VAN 90 may be one or more processors dedicated to the task of accepting, processing and transmitting electronic data interchange information.
  • DDC 70 comprises a communications medium capable of interconnecting two processors according to a standard protocol available and known to both processors.
  • DDC 70 comprises an X.25 communications server operating to provide a secure connection between clients 20 and VAN 90.
  • direct dialup connection may be any other communications server capable of providing a secure connection between clients 20 and VAN 90.
  • Public communications network 60 comprises a plurality of interconnected processors and/or servers.
  • Public communications network 60 in a preferred embodiment, comprises an interconnection of networks which is commonly known as the "Internet".
  • Internet any other public communications network may be employed in connection with the present invention.
  • the Internet system is used. Traffic originating from clients 20 and VAN 90 are directed to the appropriate locations within public communications network 60 by router systems therein (not shown).
  • both PCN 60 and DDC 70 interface with a the same router 45 prior to completing the communications path to VAN 90.
  • communications system 10 preferably includes at least one firewall 35 and at least one additional router 55 prior to completing the communications path to VAN 90.
  • firewall 35 is a security device blocking attempts by unauthorized people to access VAN 90.
  • communications system 10 may contain additional routers and firewalls between PCN 60 and DDC 70 (collectively) and VAN 90. Additional firewalls will provide additional security within VAN 90.
  • Routers 45 and 55 serve to read addressing information contained in packets so as to most efficiently transmit these packets to their destination.
  • PCN 60 also typically contains many routers through which traffic in communications system 10 flows.
  • DDC 70 in its embodiment as an X.25 network contains multiple pads which serve to route traffic in a similar manner to the routers contained in PCN 60.
  • Traffic traveling through both PCN 60 and DDC 70 consists of packets of information which are routed to the designated recipient.
  • packets originating from one client 20 may be routed to VAN 90 or to any other client 20 within communications system 10.
  • data is not secure in that it may be relatively easily intercepted and compromised at various locations within the network.
  • DDC 70 provides a secure communications link between client 20 and VAN 90 such that information can not be intercepted and/or compromised.
  • clients 20 communicate with both PCN 60 and DDC 70 using Point to Point Protocol (PPP).
  • PPP Point to Point Protocol
  • This protocol allows for the transmission of TCP IP packets utilizing a high speed modem over a single telephone line. It also provides an architecture wherein multiple sessions may be operated simultaneously through a single connection (although possibly through multiple communications paths).
  • SLIP Serial Line Internet Protocol
  • a single asynchronous connection may be used for all communications traffic within communications system 10. In this way, each of clients 20 may simultaneously communicate with VAN 90.
  • each of clients 20 may concurrently communicate data respecting multiple applications so that multiple tasks or sessions may occur between an individual client 20 and VAN 90 at one time.
  • Point-to-Point Protocol PPP
  • PPP Point-to-Point Protocol
  • DDC 70 in its form as an X.25 packet switched network, allows for world-wide, packet based connectivity, with local dial access.
  • client 20 comprises a personal computer (PC) for communicating with VAN 90.
  • VAN 90 comprises a mainframe computer for processing electronic commerce according to a particular EDI standard or according to multiple EDI standards.
  • client 20 could be any computing device capable of running at least some ofthe below described applications (or other similar applications) and VAN 90 could be any computing device maintaining applications which are accessed by clients 20.
  • Client 20 represents an intelligent client capable of performing processing by itself as opposed to a dumb terminal which has little or no processing capability.
  • Client 20 ofthe present invention also contains memory, at least one processor for running local applications, an input device 100 and an output device 105.
  • Graphical user interface 110 comprises a set of applications for displaying information at output device 105 and for prompting a user to input necessary information at input device 100.
  • One or more security applications 120 may be provided as part of client 20 and controlling the flow of data between GUI 110 and the various functional applications contained within client 20. Security applications 120 may serve to prevent unauthorized access to particular applications or all applications. Security applications 120 may comprise a password/validation check or they may be more complex security mechanisms implemented in either hardware or software as is known in the art.
  • Client 20 in a preferred embodiment, is a PC providing access to VAN 90 which is a host computer for performing electronic data interchange including various value added services.
  • client 20 contains a number of applications which are run locally at client 20 but used in conjunction with applications running on VAN 90. Exemplary client applications are provided below. It should be noted, however, that these particular applications in no way make up the whole universe of potential client applications which could be used in connection with the present invention.
  • the first client application is EDI application 130.
  • EDI application 130 comprises the Gentran:DirectorTM and ECFormsTM software packages distributed by Sterling Software, Inc. located in Dublin, Ohio. These EDI packages provide for automatic electronic commerce to occur between various trading partners who have access to communications system 10.
  • the Gentran:Director product allows a user to fully manage EDI processing through various navigation tools.
  • trading partners may be defined and documents for exchange may be specified.
  • the ECForms package provides a user with a tool for developing the forms that will be used between particular trading partners.
  • EDI application 130 communicates through a Multipurpose Internet
  • M-ME Mail Extensions
  • the next client application employed in a preferred embodiment ofthe present invention is a sophisticated mail processing application 140.
  • mail processing application is Commerce: MailTM, which is distributed by Sterling Software, Inc.
  • This application is an electronic mail application that allows users to send and receive E-Mail messages with and from trading partners.
  • Mail application 140 preferably provides conventional E-mail functionality with support for X.400 users, the Internet, and open addressing.
  • Mail application 140 preferably routes output through MIME encoder 180 prior to transmission to VAN 90.
  • World- Wide- Web application 150 allows a user to access world wide web pages which are located either on the public communications network 60 or at VAN 90.
  • the world wide web is a large scale information service that allows a user to browse information using a hypermedia linking system providing ease of use and efficient access to desired information.
  • Particular (possibly often used) world wide web pages may be stored locally in local library
  • File transfer protocol (FTP) application 160 allows a user to download a file or any type of information from VAN 90 or which is located on public communications network 60 which is preferably the Internet. Similarly, FTP application 160 allows a user to upload a file to these same remote locations. FTP is a TCP/IP standard for transferring files from one location to another.
  • an X.500 directory 170 may be provided so as to indicate and specify attributes relating to subscribers of VAN 90.
  • the X.500 may also contain vendor identifiers and addresses as well as additional information about the vendors (profiles) so that information about such vendors may be accessed as part of an open standard (X.500) by many applications.
  • the client 20 will also preferably contain TCP stack manager 125 for breaking application data down into TCP packets and attaching the required header information as is known in the art.
  • TCP stack manager may be the Winsock applications programming interface (API) included with the Windows 95 operating system distributed by the Microsoft Corporation for customizing packet generation.
  • Communications manager 135 functions to control the reception and transmission of packet data to and from the client 20, respectively.
  • Figure 3 illustrates VAN 90 in more detail. As mentioned above, the particular applications resident on VAN 90 may differ from those described below without departing from the scope or spirit ofthe present invention. It should be noted that VAN 90 is preferably implemented as an Ethernet network providing access to each ofthe below described applications or similar applications.
  • the first exemplary application running on VAN 90 is world wide web server 210.
  • World wide web server 210 may contain various world wide web pages managed and maintained by the operator of VAN 90 or its subscribers. These world wide web pages may be accessed by clients 20 or by other processors or terminals having authorization to access data through VAN 90.
  • MIME post office 220 is preferably provided so as to allow clients 20 to access their mail, process it and determine the ultimate status of mail. MIME post office 220 may interface with Commerce network for receiving mail therefrom and transmitting mail thereto.
  • X.500 directory 230 may be maintained at VAN 90 as discussed to provide an open platform allowing users to access information about subscribers such as their addresses and desired trading partners.
  • FTP server 240 contains various files and data which is maintained on VAN 90 for transmission to subscribers if so desired.
  • File server 250 similarly downloads data and files which may be maintained on storage device 255.
  • VAN 260 may also reside on VAN 260 so that they may be remotely accessed by clients 20.
  • This group of applications is illustrated in Figure 3 as box 260.
  • the user sitting at client terminal 20 will initiate communication with VAN 90 through a set up screen.
  • the user may be prompted to select either PCN 60 or DDC 70 as a communication path to VAN 90.
  • a PPP communication protocol is preferably used so that the user may concurrently process multiple sessions executing multiple applications with data exchange between client 20 and VAN 90.
  • a SLIP protocol or any other agreed upon protocol providing multiple concurrent sessions over PCN 60 and DDC 70 may be used.
  • a communications path (PCN 60 or DDC 70) will automatically be selected for the user as controlled by the particular application(s) being accessed. Automatic selection may alternatively be made on the basis ofthe availability and status (e.g. the response time or extent of current traffic) of either or both of PCN 60 or DDC 70.
  • switch 25 Upon selection of either PCN 60 or DDC 70, switch 25 operates to automatically dial up the local number for DDC access or access the PCN 60 as may be required.
  • switch 25 comprises an application for selecting among a plurality of logon scripts, each ofthe logon scripts causing the call to be routed to a different host.
  • PPP packets are tunneled through that network.
  • the X.25 formatting information is preferably stripped off of the data stream and the PPP packets will be converted to TCP/LP.
  • the transmission of PPP over X.25 is established as follows. First, an X.25 connection is established. This is preferably accomplished via a local dial to an X.25 povider's Point of Presence (POP). A scripting language is used to logon and route the call to VAN 90.
  • X.25 connectivity is established, a PPP session is brought up. This is controlled by PPP software running on client 20 and by routers 45 and/or 55. Router 45 and/or 55 assigns client 20 a dynamic IP address.
  • PPP connectivity is established, there exists an open communication pipe for the LP to use.
  • the PPP protocol data is wrapped in X.25 packet envelopes that are opened and re-routed at the VAN 90 site. The procedure is similar when SLIP is used in place of PPP.
  • PPP packets are transmitted through that network by dialing up a PPP terminal server of an Internet service provider. PPP packets are transmitted directly to VAN 90. In this case the logon script is set up to point to the Internet rather than to the VAN 90 LP address.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Computer And Data Communications (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention porte sur un système de télécommunications (10) permettant à des clients (20) abonnés à un réseau (90) à valeur ajoutée de communiquer facilement et en souplesse avec ledit réseau (90). Le client peut choisir de se raccorder au réseau soit par l'intermédiaire d'une liaison à connexion directe établie par numérotation, par exemple du type X.25, soit par l'intermédiaire d'une liaison du type protocole Internet (IP). Un commutateur (25) installé au niveau de la connexion client lui permet d'accéder au réseau (90) à valeur ajoutée par l'une ou l'autre des liaisons. Dans l'une des variantes de l'invention, l'utilisateur de la station de travail client peut déterminer la liaison la plus appropriée, tandis que dans une autre variante, la sélection du protocole de communication est réalisée automatiquement par le processus client en fonction de l'application à laquelle on a accédé. Il est à noter qu'une partie du système de télécommunications (10) de l'invention est localisée dans le réseau à valeur ajoutée, ladite partie communiquant avec les clients (20) reliés de manière à rendre l'interface de communication transparente pour le client.
PCT/US1996/017456 1995-11-03 1996-11-01 Reseau a valeur ajoutee a methode d'acces multiples WO1997016793A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR9611143-7A BR9611143A (pt) 1995-11-03 1996-11-01 Rede de valor agregado com metodologia de acesso múltipla
AU76009/96A AU7600996A (en) 1995-11-03 1996-11-01 Value added network with multiple access methodology
IL12430396A IL124303A0 (en) 1995-11-03 1996-11-01 Value added network with multiple access methodology
EP96938695A EP0870252A4 (fr) 1995-11-03 1996-11-01 Reseau a valeur ajoutee a methode d'acces multiples
NO981979A NO981979L (no) 1995-11-03 1998-04-30 Kommunikasjonssystem for multippelaksess til et avansert overf°ringsnett av kategori VAN

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55292395A 1995-11-03 1995-11-03
US08/552,923 1995-11-03

Publications (1)

Publication Number Publication Date
WO1997016793A1 true WO1997016793A1 (fr) 1997-05-09

Family

ID=24207371

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/017456 WO1997016793A1 (fr) 1995-11-03 1996-11-01 Reseau a valeur ajoutee a methode d'acces multiples

Country Status (8)

Country Link
EP (1) EP0870252A4 (fr)
AU (1) AU7600996A (fr)
BR (1) BR9611143A (fr)
CA (1) CA2236644A1 (fr)
IL (1) IL124303A0 (fr)
NO (1) NO981979L (fr)
TR (1) TR199800789T2 (fr)
WO (1) WO1997016793A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999004357A1 (fr) * 1997-07-14 1999-01-28 Electronic Data Systems Corporation Systeme de commerce electronique integre et procede correspondant
EP0935373A2 (fr) * 1997-10-14 1999-08-11 AT&T Corp. Système permettant d'améliorer la qualité de service pour les connections d' un réseau longue distance
US7492787B2 (en) 2002-03-29 2009-02-17 Fujitsu Limited Method, apparatus, and medium for migration across link technologies

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US5517622A (en) * 1991-04-11 1996-05-14 Galileo International Partnership Method and apparatus for pacing communications in a distributed heterogeneous network
US5528757A (en) * 1992-09-28 1996-06-18 Hitachi, Ltd. Routing system for retrieving requested program by discarding received program identical with stored programs and transferring the received program not identical with stored programs
US5530852A (en) * 1994-12-20 1996-06-25 Sun Microsystems, Inc. Method for extracting profiles and topics from a first file written in a first markup language and generating files in different markup languages containing the profiles and topics for use in accessing data described by the profiles and topics
US5557780A (en) * 1992-04-30 1996-09-17 Micron Technology, Inc. Electronic data interchange system for managing non-standard data
US5561769A (en) * 1994-05-10 1996-10-01 Lucent Technologies Inc. Method and apparatus for executing a distributed algorithm or service on a simple network management protocol based computer network

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EP0506842A4 (en) * 1989-12-13 1993-09-01 Araco Method and apparatus for storing, transmitting and retrieving graphical and tabular data
FR2711468B1 (fr) * 1993-10-19 1996-01-05 Ouest Standard Telematique Sa Dispositif d'interconnexion entre deux réseaux locaux distants, et procédé d'interconnexion correspondant.

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US5517622A (en) * 1991-04-11 1996-05-14 Galileo International Partnership Method and apparatus for pacing communications in a distributed heterogeneous network
US5557780A (en) * 1992-04-30 1996-09-17 Micron Technology, Inc. Electronic data interchange system for managing non-standard data
US5528757A (en) * 1992-09-28 1996-06-18 Hitachi, Ltd. Routing system for retrieving requested program by discarding received program identical with stored programs and transferring the received program not identical with stored programs
US5561769A (en) * 1994-05-10 1996-10-01 Lucent Technologies Inc. Method and apparatus for executing a distributed algorithm or service on a simple network management protocol based computer network
US5530852A (en) * 1994-12-20 1996-06-25 Sun Microsystems, Inc. Method for extracting profiles and topics from a first file written in a first markup language and generating files in different markup languages containing the profiles and topics for use in accessing data described by the profiles and topics

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IEEE PUBLICATION, 1994, PUNG et al., "A TCP/IP-X.25 Gateway to Televieuw", pages 1164-1168. *
IEEE PUBLICATION, June 1995, QU et al., "Considerations in Running TCP/IP-Based Networks over the X.25 Public Data Network", pages 379-383. *
O'REILLY & ASSOCIATES, INC., May 1993, "The Whole Internet User's Guide & Catalog", pages 333-337. *
See also references of EP0870252A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999004357A1 (fr) * 1997-07-14 1999-01-28 Electronic Data Systems Corporation Systeme de commerce electronique integre et procede correspondant
US6453352B1 (en) 1997-07-14 2002-09-17 Electronic Data Systems Corporation Integrated electronic commerce system and method
EP0935373A2 (fr) * 1997-10-14 1999-08-11 AT&T Corp. Système permettant d'améliorer la qualité de service pour les connections d' un réseau longue distance
EP0935373A3 (fr) * 1997-10-14 2001-12-05 AT&T Corp. Système permettant d'améliorer la qualité de service pour les connections d' un réseau longue distance
US7492787B2 (en) 2002-03-29 2009-02-17 Fujitsu Limited Method, apparatus, and medium for migration across link technologies

Also Published As

Publication number Publication date
NO981979L (no) 1998-07-02
NO981979D0 (no) 1998-04-30
AU7600996A (en) 1997-05-22
TR199800789T2 (xx) 1998-10-21
BR9611143A (pt) 1999-12-28
EP0870252A1 (fr) 1998-10-14
EP0870252A4 (fr) 1999-01-27
CA2236644A1 (fr) 1997-05-09
IL124303A0 (en) 1998-12-06

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