KR100281422B1 - Call processing method when asynchronous terminal user and TSI-based information provider connected to frame relay network interwork with frame relay network matching device - Google Patents

Abstract

An object of the present invention is to provide a call processing method when an asynchronous terminal user and a TCP / IP based information provider connected to a frame relay network interwork with a frame relay network matching device.

According to the present invention, there is provided a call connection processing method in a mass communication processing system including a subscriber network matching means, a fast switching means, and a frame relay network matching means, wherein a call connection request message is received from the subscriber network matching means. Determining whether there is a first step; A second step of determining whether a call corresponding to an information provider host (IPH) destination address has already been set up as a result of the determination of the first step, if there is no error in the received call connection request message; A third step of establishing a Telnet connection requirement by extracting an information provider (IP) address from the information provider host destination address if the call is established as a result of the determination in the second step; And a fourth step of transmitting a TCP connection request message according to a TCP / IP protocol to the frame relay network matching means to perform a call connection with the information provider host.

Description

Method of interworking between FNAS and IPH with TCP / IP when asynchronous terminal user and TSI-based information provider connected to frame relay network interwork with frame relay network matching device

The present invention relates to a call processing method when an asynchronous terminal user and a TCP / IP based information provider connected to a frame relay network interwork with a frame relay network matching device.

Conventional C_DTE has been provided with low speed data communication service using X.25 protocol to servers connected to PSDN such as HiNET_P or DACOM network. In the future, such a server is connected to the frame relay network to provide a high speed service. At this time, these servers tend to provide services by porting TCP / IP based on the frame relay protocol.

In order to provide high-speed data communication service to C_DTE users, IPH using TCP / IP is applied to the frame relay network over the frame relay protocol with higher transmission speed and lower delay time than the existing X.25 protocol. There is a need in the art for accessing a method of providing IPH services.

The present invention has been made to solve the problems of the prior art as described above, call processing method when the asynchronous terminal user and the TCP / IP-based information provider connected to the frame relay network to the frame relay network matching device It is about.

1 is a block diagram showing the configuration of a service network of a mass communication processing system applied to the present invention,

2 is a flowchart illustrating a call connection step according to an embodiment of the present invention;

3 is a flowchart illustrating a TCP connection request step of an IPH according to an embodiment of the present invention;

4 is a flowchart illustrating an IPH and a TCP connection response step according to an embodiment of the present invention;

5 is a flowchart illustrating a call release request step from a C_DTE user after a normal call connection according to an embodiment of the present invention;

6 is a flowchart illustrating a call release request step from an IPH after call connection according to an embodiment of the present invention;

7 is a flowchart illustrating a call release step when an abnormal response is received from an IPH during a call connection according to an embodiment of the present invention.

♠ Explanation of symbols on the main parts of the drawing ♠

110: mass communication processing system 111: subscriber network matching device

112: high speed switching system 113: frame relay network matching device

120: telephone network 130: information users

140: frame relay network 150: LAN

160: IPH

According to the present invention for achieving the object as described above, in the call connection processing method in a large capacity communication processing system comprising a subscriber network matching means, a fast switching means and a frame relay network matching means, from the subscriber network matching means A first step of receiving a call connection request message and determining whether there is an error; A second step of determining whether a call corresponding to an information provider host (IPH) destination address has already been set up as a result of the determination of the first step, if there is no error in the received call connection request message; A third step of establishing a Telnet connection requirement by extracting an information provider (IP) address from the information provider host destination address if the call is established as a result of the determination in the second step; And a fourth step of transmitting a TCP connection request message according to a TCP / IP protocol to the frame relay network matching means to perform a call connection with the information provider host.

A call release request message from an asynchronous terminal or an information provider host (IPH) is provided in a call connection release method in a mass communication processing system including a subscriber network matching means, a fast switching means, and a frame relay network matching means. Or if the TCP release request message is transmitted, receiving the call release request message or the TCP release request message to determine whether there is an error; A second step of transmitting a call release confirmation message to the subscriber network matching device if there is no error in the call release request message or the TCP release request message as a result of the determination in the first step; Releasing all system resources of the corresponding call corresponding to the call release confirmation message; As a result of the determination of the first step, if there is an error in the call release request message or the TCP release request message, a call connection release method comprising the step of releasing all system resources of the call is provided.

A call processing method in a mass communication processing system including a subscriber network matching means, a fast switching means, and a frame relay network matching means, comprising: receiving a call connection request message from the subscriber network matching means and determining whether there is an error; Determining the first step; A second step of determining whether a call corresponding to an information provider host (IPH) destination address has already been set up as a result of the determination of the first step, if there is no error in the received call connection request message; A third step of establishing a Telnet connection requirement by extracting an information provider (IP) address from the information provider host destination address if the call is established as a result of the determination in the second step; A fourth step of transmitting a TCP connection request message according to a TCP / IP protocol to the frame relay network matching means to perform a call connection with the information provider host; A fifth step of receiving a call release request message or a TCP release request message and determining whether there is an error when a call release request message or a TCP release request message is transmitted from an asynchronous terminal or the information provider host; A sixth step of transmitting a call release confirmation message to the subscriber network matching device if the call release request message or the TCP release request message has no error as a result of the determination in the fifth step; And a seventh step of releasing all system resources of the corresponding call corresponding to the call release confirmation message.

A computer-readable recording medium having recorded thereon a program capable of executing a call connection processing method in a mass communication processing system including a subscriber network matching means, a fast switching means, and a frame relay network matching means, the subscriber network comprising: Receiving a call connection request message from the matching means, and determining whether there is an error; A second step of determining whether a call corresponding to an information provider host (IPH) destination address has already been set up as a result of the determination of the first step, if there is no error in the received call connection request message; A third step of establishing a Telnet connection requirement by extracting an information provider (IP) address from the information provider host destination address if the call is established as a result of the determination in the second step; As a result of the determination of the second step, if the call is not set, call processing is performed by a switched virtual circuit (SVC) to complete the call setup, and then the information provider address is obtained from the information provider host destination address. Extracting and establishing a Telnet connection requirement; A fifth step of, upon receiving a TCP connection request message, performing address cleanup by address mapping with a source address and a frame relay address with the information provider host connected to a destination address and a frame relay network; Provided is a computer-readable recording medium having recorded thereon a program capable of executing the sixth step of transmitting a TCP connection response complete message and sending a call connection complete message to perform a call connection after running the TCP / IP software. do.

A computer-readable recording medium having recorded thereon a program capable of executing a method for releasing a call connection in a mass communication processing system including subscriber network matching means, fast switching means, and frame relay network matching means, comprising: an asynchronous terminal or A first step of determining whether there is an error by receiving the call release request message or the TCP release request message when a call release request message or a TCP release request message is transmitted from an information provider host (IPH); A second step of transmitting a call release confirmation message to the subscriber network matching device if there is no error in the call release request message or the TCP release request message as a result of the determination in the first step; Releasing all system resources of the corresponding call corresponding to the call release confirmation message; A fourth step of storing information of the corresponding call upon receiving an abnormal response from the information provider host; After transmitting the TCP release request message to the information provider host, a computer-readable recording medium having recorded thereon a program capable of executing the fifth step proceeding to the first step is provided.

A computer-readable recording medium having recorded thereon a program capable of executing a call processing method in a mass communication processing system including a subscriber network matching means, a fast switching means, and a frame relay network matching means, the subscriber network matching. Receiving a call connection request message from the means to determine whether there is an error; A second step of determining whether a call corresponding to an information provider host (IPH) destination address has already been set up as a result of the determination of the first step, if there is no error in the received call connection request message; A third step of establishing a Telnet connection requirement by extracting an information provider (IP) address from the information provider host destination address if the call is established as a result of the determination in the second step; As a result of the determination in the second step, if the call is not set, call processing is performed through a switched virtual circuit (SVC) to complete the call setup, and then the information provider (IP: Extracting an information provider address to establish a Telnet connection requirement; A fifth step of, upon receiving a TCP connection request message, performing address cleanup by address mapping with a source address and a frame relay address with the information provider host connected to a destination address and a frame relay network; A sixth step of, after running the TCP / IP software, transmitting a TCP connection response complete message and transmitting a call connection complete message to perform a call connection; A seventh step of receiving a call release request message or a TCP release request message and determining whether there is an error when a call release request message or a TCP release request message is transmitted from an asynchronous terminal or the information provider host; An eighth step of transmitting a call release confirmation message to the subscriber network matching device if there is no error in the call release request message or the TCP release request message as a result of the determination of the seventh step; A ninth step of releasing all system resources of the corresponding call corresponding to the call release confirmation message transmitted in the eighth step; A tenth step of storing information of a corresponding call upon receiving an abnormal response from the information provider host; After transmitting the TCP release request message to the information provider host, a computer-readable recording medium having recorded thereon a program capable of executing the eleventh step proceeding to the seventh step is provided.

In the following, with reference to the accompanying drawings, a preferred embodiment according to the present invention will be described in detail.

1 is a configuration diagram showing a configuration of a service network of a mass communication processing system applied to the present invention.

The mass communication processing system 110 is composed of a subscriber network matching device 111, a fast switching system 112, and a frame relay network matching device 113.

The mass communication processing system 110 having the above configuration is connected to the user terminal 130 of the asynchronous terminal (hereinafter referred to as 'C_DTE') through the telephone network 120, and the IP host (through the frame relay network 140). IP Host (hereinafter referred to as 'IPH') is directly connected to the LAN 150 or IPH 160 to which it is connected. The mass communication processing system 110 is either IPH 160 on the LAN 150 via the C_DTE 130 and the frame relay network 140 connected to the telephone network 120 or IPH 160 on the frame relay network 140. ) Provides the data communication service base on the frame relay network.

The subscriber network matching device 111 performs a call connection function, a transparent data transmission / reception function, and a call release function for the C_DTE 130 user, and the frame relay network matching device 113 performs a TCP processing function, an IP forming and processing function, It is responsible for Q.933 and Q.932 processing functions, congestion control functions, and frame relay network matching functions. The fast switching system 112 provides a high speed communication function between the subscriber network matching device 111 and the frame relay network matching device 113.

Hereinafter, a method of providing a TCP / IP-based IPH service on a frame relay network for a C_DTE user according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 7.

2 is a flowchart illustrating a flow of a call connection step according to an embodiment of the present invention.

First, in step S301, when the user connects to the mass communication processing system, the subscriber network matching device transmits a call connection request message to the frame relay network matching device, and after the frame relay network matching device receives the call connection request message, In step S302, it is determined whether there is an error in the protocol of the call request message.

As a result of the determination in step S302, if there is an error, the process ends. If there is no error, in step S303, after the IPH and TCP connection is completed by storing the information of the call, the subscriber network matching device is completed. Sends a call connection completion message to notify that call setup is completed and ends.

3 is a flowchart showing in detail a TCP connection request step to IPH according to an embodiment of the present invention.

First, in step S401, when an error-free call connection request message is received, in step S402, the IPH address (IPH address is an address interpreted by the frame relay network) connected to the frame relay network is checked. In S403, the IPH destination address is extracted to determine whether the IPH is an address connected to the frame relay network.

As a result of the determination in step S403, if it is not connected to the frame relay network, in step S405, call processing is performed through a switched virtual circuit (SVC) and the call setup is completed, and the flow proceeds to step S406. .

As a result of the determination in step S403, if connected to the frame relay network, in step S406, the IP destination address is obtained from the IPH destination address for the TCP connection, and in step S407, the port number and DLCI (connected to the frame relay network) are obtained. Mapping to the IPH destination address with a Data Link Connection Identifier) number, and in step S408, receives its own IP address from the database of the frame relay network matching device.

Subsequently, in step S409, an outgoing port is assigned to an unused port among unwell-known ports, a telnet connection requirement is established, and in step S410, a TCP / IP software package is used as a TCP / IP software package. The contents of the protocol header are set and stored. After the TCP connection request message is delivered as a primitive in step S411, the process ends.

4 is a flowchart illustrating a flow of an IPH and a TCP connection response step according to an embodiment of the present invention.

First, in step S501, after transmitting a TCP connection request message through the operation procedure of FIG. 4, and receiving a TCP connection response message, in step S502, a transmission socket address (socket address is a combination of an IP address and a TCP port number). After the address cleanup is performed using the address mapping of the receiving socket address and the IPH connected to the frame relay network, the frame relay address connected to the frame relay network is determined. In step S503, the TCP / IP protocol is used as the TCP / IP software package. The contents of the header are set, and in step S504, the TCP connection response complete message is delivered as a primitive (5-4).

Subsequently, in step S505, a call connection completion message is transmitted to the subscriber network matching device to notify that call setting is completed.

5 is a flowchart illustrating a call release request step from a C_DTE user after a normal call connection according to an embodiment of the present invention.

First, in step S601, when the user is released from the mass communication processing system, the subscriber network matching device sends a call release request message to the frame relay network matching device, and then, when the frame relay network matching device receives the call release request message, In step S602, it is determined whether there is an error in the call release message protocol.

As a result of the determination in step S602, if there is an error, the process proceeds to step S604. If there is no error, in step S603, the frame relay network matching device sends a call release confirmation message to the subscriber network matching device, and then in step S604, Release all system resources occupied by the call and exit.

6 is a flowchart illustrating a call release request step from IPH after call connection according to an embodiment of the present invention.

First, when receiving a TCP release request message from IPH in step S701, in step S702, the frame relay network matching device transmits a call release request message to the subscriber network matching device, and then, in step S703, the system occupied by the call. Release all resources and exit.

7 is a flowchart illustrating a call release step when an abnormal response is received from an IPH during a call connection according to an embodiment of the present invention.

First, in step S801, when the user connects to the mass communication processing system, the subscriber network matching device sends a call connection request message to the frame relay network matching device, and when the frame relay network matching device receives the call connection request message, In S802, it is determined whether there is an error in the call request message protocol.

As a result of the determination in step S802, if there is an error, the process ends. If there is no error, in step S803, the information of the call is stored. In step S804, a TCP destination port is connected to the destination IPH via telnet, and from IPH After receiving the TCP release message, the frame relay network matching device transmits a call release request message to the subscriber network matching device.

Next, in step S805, the procedure of FIG. 6 is performed.

On the other hand, the present invention as described above is recorded on a computer-readable recording medium, it can be processed by a computer.

The present invention provides a call processing method when an asynchronous terminal user and a TCP / IP-based information provider connected to a frame relay network are interlocked with a frame relay network matching device. There is an effect that it is possible to use the service is becoming uncomfortable.

In addition, for the packet information of X.3 inputted from C_DTE and IPH and TCP / IP communication connected to the frame relay network, the encapsulation, decapsulation and mapping functions of mutual information in the future high quality frame relay network matching device Provision is of great technical significance.

The technical spirit of the present invention has been described above with reference to the accompanying drawings. However, the present invention has been described by way of example only, and is not intended to limit the present invention. In addition, it is obvious that any person skilled in the art may make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (12)

A call connection processing method in a high capacity communication processing system comprising a subscriber network matching means, a fast switching means and a frame relay network matching means, Receiving a call connection request message from the subscriber network matching means, and determining whether there is an error; A second step of determining whether a call corresponding to an information provider host (IPH) destination address has already been set up as a result of the determination of the first step, if there is no error in the received call connection request message; A third step of establishing a Telnet connection requirement by extracting an information provider (IP) address from the information provider host destination address if the call is established as a result of the determination in the second step; And a fourth step of transmitting a TCP connection request message according to a TCP / IP protocol to the frame relay network matching means to perform a call connection with the information provider host. The method of claim 1, If the call is not set as the determination result of the second step, performing call processing with a switched virtual circuit (SVC) to complete the call setup, and then proceeding to the third step. Call connection processing method, characterized in that made. The method of claim 1, The fourth step, Receiving a TCP connection request message, the first sub-step of performing address cleansing by using an address mapping of the transmission address and the frame relay address with the information provider host connected to the reception address and the frame relay network; And a second sub-step of transmitting a TCP connection response complete message and transmitting a call connection complete message after running the TCP / IP software. A call connection release method in a high capacity communication processing system comprising a subscriber network matching means, a fast switching means and a frame relay network matching means, When a call release request message or a TCP release request message is transmitted from an asynchronous terminal or an information provider host (IPH), a first step of determining whether there is an error by receiving the call release request message or the TCP release request message. Wow; A second step of transmitting a call release confirmation message to the subscriber network matching device if there is no error in the call release request message or the TCP release request message as a result of the determination in the first step; Releasing all system resources of the corresponding call corresponding to the call release confirmation message; And a fourth step of releasing all system resources of the call if there is an error in the call release request message or the TCP release request message as a result of the determination of the first step. The method of claim 4, wherein A fifth step of storing information of a corresponding call upon receiving an abnormal response from the information provider host; And a sixth step of proceeding to said first step after transmitting a TCP release request message to said information provider host. A call processing method in a high capacity communication processing system including a subscriber network matching means, a fast switching means and a frame relay network matching means, Receiving a call connection request message from the subscriber network matching means, and determining whether there is an error; A second step of determining whether a call corresponding to an information provider host (IPH) destination address has already been set up as a result of the determination of the first step, if there is no error in the received call connection request message; A third step of establishing a Telnet connection requirement by extracting an information provider (IP) address from the information provider host destination address if the call is established as a result of the determination in the second step; A fourth step of transmitting a TCP connection request message according to a TCP / IP protocol to the frame relay network matching means to perform a call connection with the information provider host; A fifth step of receiving a call release request message or a TCP release request message and determining whether there is an error when a call release request message or a TCP release request message is transmitted from an asynchronous terminal or the information provider host; A sixth step of transmitting a call release confirmation message to the subscriber network matching device if the call release request message or the TCP release request message has no error as a result of the determination in the fifth step; And a seventh step of releasing all system resources of the corresponding call corresponding to the call release confirmation message. The method of claim 6, If the call is not set as the determination result of the second step, performing call processing with a switched virtual circuit (SVC) to complete the call setup, and then proceeding to the third step. Call processing method, characterized in that made. The method of claim 6, The fourth step, Receiving a TCP connection request message, the first sub-step of performing address cleansing by using an address mapping of the transmission address and the frame relay address with the information provider host connected to the reception address and the frame relay network; And a second sub-step of transmitting a TCP connection response complete message and transmitting a call connection complete message after running the TCP / IP software. The method of claim 6, An eighth step of, when receiving an abnormal response from the information provider host, storing information of the corresponding call; And a ninth step of proceeding to the fifth step after transmitting the TCP release request message to the information provider host. A computer-readable recording medium having recorded thereon a program capable of executing a call connection processing method in a mass communication processing system including subscriber network matching means, fast switching means, and frame relay network matching means, Receiving a call connection request message from the subscriber network matching means, and determining whether there is an error; A second step of determining whether a call corresponding to an information provider host (IPH) destination address has already been set up as a result of the determination of the first step, if there is no error in the received call connection request message; A third step of establishing a Telnet connection requirement by extracting an information provider (IP) address from the information provider host destination address if the call is established as a result of the determination in the second step; As a result of the determination of the second step, if the call is not set, call processing is performed by a switched virtual circuit (SVC) to complete the call setup, and then the information provider address is obtained from the information provider host destination address. Extracting and establishing a Telnet connection requirement; A fifth step of, upon receiving a TCP connection request message, performing address cleanup by address mapping with a source address and a frame relay address with the information provider host connected to a destination address and a frame relay network; A computer-readable recording medium having recorded thereon a program capable of executing a sixth step of transmitting a TCP connection response complete message and transmitting a call connection complete message to perform a call connection after running the TCP / IP software. A computer-readable recording medium having recorded thereon a program capable of executing a call disconnection method in a mass communication processing system including subscriber network matching means, fast switching means, and frame relay network matching means, When a call release request message or a TCP release request message is transmitted from an asynchronous terminal or an information provider host (IPH), a first step of determining whether there is an error by receiving the call release request message or the TCP release request message. Wow; A second step of transmitting a call release confirmation message to the subscriber network matching device if there is no error in the call release request message or the TCP release request message as a result of the determination in the first step; Releasing all system resources of the corresponding call corresponding to the call release confirmation message; A fourth step of storing information of the corresponding call upon receiving an abnormal response from the information provider host; A computer-readable recording medium having recorded thereon a program capable of executing a fifth step proceeding to the first step after sending a TCP release request message to the information provider host. A computer-readable recording medium having recorded thereon a program capable of executing a call processing method in a mass communication processing system including subscriber network matching means, fast switching means, and frame relay network matching means, Receiving a call connection request message from the subscriber network matching means, and determining whether there is an error; A second step of determining whether a call corresponding to an information provider host (IPH) destination address has already been set up as a result of the determination of the first step, if there is no error in the received call connection request message; A third step of establishing a Telnet connection requirement by extracting an information provider (IP) address from the information provider host destination address if the call is established as a result of the determination in the second step; As a result of the determination in the second step, if the call is not set, call processing is performed through a switched virtual circuit (SVC) to complete the call setup, and then the information provider (IP: Extracting an information provider address to establish a Telnet connection requirement; A fifth step of, upon receiving a TCP connection request message, performing address cleanup by address mapping with a source address and a frame relay address with the information provider host connected to a destination address and a frame relay network; A sixth step of, after running the TCP / IP software, transmitting a TCP connection response complete message and transmitting a call connection complete message to perform a call connection; A seventh step of receiving a call release request message or a TCP release request message and determining whether there is an error when a call release request message or a TCP release request message is transmitted from an asynchronous terminal or the information provider host; An eighth step of transmitting a call release confirmation message to the subscriber network matching device if there is no error in the call release request message or the TCP release request message as a result of the determination of the seventh step; A ninth step of releasing all system resources of the corresponding call corresponding to the call release confirmation message transmitted in the eighth step; A tenth step of storing information of a corresponding call upon receiving an abnormal response from the information provider host; A computer-readable recording medium having recorded thereon a program capable of executing the eleventh step proceeding to the seventh step after transmitting a TCP release request message to the information provider host.