KR100198444B1 - Path arranging method in communication managing system - Google Patents

Abstract

The present invention relates to a route setting method using a routing table in a large-capacity communication processing system. Since the conventional communication processing system uses an X.25 packet switching network as a data network, a rapid increase in PC communication users and performance improvement of user terminals are provided. Due to the requirements of multimedia services such as voice, graphics, and video, it is inevitable to increase the line between the communication processing system and the packet switched network, and thus, the capacity expansion and the change to the open structure are inevitable. In order to solve the problem, the present invention is designed to accommodate not only the telephone network (PSTN) and the packet network (PSDN) currently used, but also the frame relay network, the ISDN network, and the ATM network. Whenever the hap module is bleeding Designed as an open structure that can show new services by simply connecting and making a matching module based on a switch, about 50 VAN operators can be connected equally to new VAN operators that will be caused by the opening of the communication market. Open communication processing system platform to support various service network access and standard protocol based on the structure that is designed to be able to accept efficiently even when it appears, so that new service can be easily displayed by simply developing and attaching new module groups. HSSF subsystem, which is an internal high speed interworking network having a structure and also having a core function of the open communication processing platform structure, is mounted on each network matching module and a service module to perform a high speed system bus adapter that performs serial transmission / reception with a subscriber input / output unit. HSNA), and each network matching module And a subscriber input / output unit (HSCA) in charge of input / output transmission / reception of packet data through serial connection with a service module, and finally an arbitration exchange unit (HSSA) in which the license of the common bus is arbitrated and the packet data is exchanged. With this configuration, when the initial system starts to operate normally with a high-speed switch, the arbitration switch or the processor board of each network matching device (NAS) can be loaded via the switch from the LOMS to receive the data communication service desired by the user. In addition to the purification network and packet network, a variety of emerging networks can be accommodated.In the initial stage, the network subscriber channel and the packet network subscriber can be efficiently routed, and one-to-one communication between each connected node and communication between the majority Supported and can immediately load changed routing information from the LOM It has an effect that can deal with the change.

Description

Path setting method of mass communication processing system

According to the present invention, an Information Communication Processing System (ICPS) can connect a user terminal using a telephone network and an information service center based on a packet-switched network (Hinet-P) to search, collect, and store a variety of information. Gateway system.

The user terminal targets PCs or high-tel terminals with 2400 to 28800bps modems, and the information service center provides information using 56kbps lines for X.25 public packet services.

The main functions of the communication processing system include a media conversion function for converting information into a form suitable for a user terminal, a speed conversion function for resolving speed differences between a packet switching network and a telephone network, and a protocol conversion for resolving the differences between network protocols It can be defined as a function and network management function.

Conventional communication processing system uses X.25 packet switching network as data network, and due to the rapid increase of PC communication users, performance improvement of user terminal, and multimedia service requirements such as voice, graphic, and image, Line expansion between packet switched networks is inevitable.

Due to the above reason, the existing communication processing system is inevitably expanded to an open structure and a large capacity communication processing system appears in the background.

The present invention allows each network matching device to be efficiently connected through the present invention based on a high-speed switch based on a parallel common bus, and supports one-to-one communication and one-to-many communication between each node. Packets originating from nodes can be delivered quickly and accurately through the present invention.

In addition, in order to achieve the above object, the present invention is based on the high speed switch (HSSF), when the initial system starts normal operation, the path from the LOMS (Local Operation, adminis tration, Maintenance System) to the desired destination through the switch The relevant routing table is downloaded by the HSSA of the high speed switch or the processor board of each network access system (NAS), and the desired information is transmitted from the source to the destination between the network matching devices via the high speed switch. In principle, it should be possible to transmit and receive efficiently.

Initially, 960 channels of telephone network subscribers and 256 ports of 56Kbps of packet network subscribers are efficiently routed.

In addition, if the routing path fails during normal operation of the system, each network matching device reports the abnormal status to the LOMS, with the reported information, the LOMS updates the routing table related to the routing, and updates the routing information immediately from the LOMS. Since it can be loaded, it provides a new routing method that enables efficient service through the bypass path when an error occurs in the communication path.

1 is a block diagram of a mass communication processing system to which the present invention is applied.

2 is a diagram of a routing table to which the present invention is applied.

3 is a flow diagram of routing table loading by LOMS request in accordance with the present invention.

4 is a flow diagram of a routing table loading by HSSF request in accordance with the present invention.

5 is a flowchart illustrating a routing table loading related task of the network matching device of the present invention.

Figure 6 is a flow chart of the internal task related to routing table loading of the network registration device of the present invention.

7 is a drive initialization flowchart of a processor board to which the present invention is applied.

8 is a flowchart of call connection with a network matching device according to the present invention.

9 is a flowchart of data transmission with a network matching device according to the present invention.

10 is a flowchart for receiving data with a network matching device according to the present invention.

11 is a reception flowchart required when interfacing with a high speed switch according to the present invention.

12 is a transmission flow diagram required for interfacing with a high speed switch according to the present invention.

* Explanation of symbols for main parts of the drawings

100: telephone network switch (PSTN) 101: telephone network matching unit (TNAS)

102: high speed switching connection (HSSF) 103: packet network (PSDN)

104: information provider unit (IP) 105: packet network matching unit (PNAS)

106: frame relay unit (FRN) 107: LOMS matching unit

The present invention relates to a routing method using a routing table in a large capacity communication processing system. The present invention relates to a configuration diagram, a routing table structure diagram, a drive initialization flowchart of a processor board, and a network matching device of a large capacity communication processing system to which the present invention is applied. Flow diagram of call connection, flow chart of data transmission with network matching device, flow chart of data reception with network matching device, reception flow chart required when interface with high speed switch, transmission flow chart and maintenance of network matching device when interface with high speed switch And a related task flow chart and a maintenance related internal task flow chart of the network matching device.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a mass communication processing system to which the present invention is applied.

In the above configuration, the high-capacity communication processing system collects a call from the exchange to the communication processing system when the PC communication users connected to the telephone network switch 100 dial a specific number for the communication processing service. ss Subsystem (TNAS) 101 to be connected to the communication system.

The telephone network matching unit 101 serves as a hub for connecting a telephone network interface (TNIF) 101 having a trunk interface function and a modem function corresponding to a sub highway of a telephone network switch, and a serial subscriber port to a system bus. HSNA 101 board, which is in charge of TAXI serial interface for interfacing user's information per channel to data network, and High Speed Switching for internal high speed packet switching through 32 TAXI ports. Fabric, HSSF) 102, a Packet Network Access Subsystem (PNAS) 105 for connecting to a packet network, and an Information Provider (IP) 104.

The difference between the existing communication processing system and the large capacity communication processing system is that the HSSF 102 is placed inside the system for data network matching.

The fast switching connection unit 101 is located between the telephone network matching unit (TNAS) 101 and the packet network matching unit (PNAS) 105 to accommodate 10 telephone network matching units 101 having a processing capacity of 96 subscriber units. It is an internal switch with 32 ports capacity that uses 28 ports for network matching and supports 2 ports for operation management.

96 subscriber capacity, which is the capacity of subscribers of telephone network, which can be handled by existing small capacity communication processing system, was expanded to 960 subscribers in large capacity communication processing system, and 100 Mbps TAXI (Transparent Asynchronous Xmitter-Receiver Interface) for communication with data network. A high speed switching connection 102 based on a serial interface has been added.

The high speed switching connection unit 102 is connected to the subscriber I / O unit via a TAXI interface and between processors between the telephone network matching unit 101 and the packet network matching unit 105 using a packet having a variable length packet size by a protocol defined by itself. It is supposed to communicate.

2 is a structural diagram of a routing table to which the present invention is applied.

The above structure shows routing table information loaded from the LOMS, which is the core of the present invention, and a procedure of updating the LOMS.

The routing table itself is divided into a case in which routing information is loaded from the LOMS when the system is powered on, and a case in which a routing table is requested from the high speed switching access unit (HSSF) 102 and loaded from the LOMS during execution.

Blocking a specific channel for smooth service after receiving a report on the state of the high speed switching connection (HSSA) or the disconnection and channel state of the subscriber input / output unit (HSCA) during the data transmission / reception with each AS. The LOMS loads new routing information into each AS or HSSA board of the high-speed switch.

The method for updating the routing table in the LOMS is based on information about a bus state, a node state, and an NPA / SPA board state, which is a processor board, and a processor board or a high speed switching connection (HSSA) of each AS. Update the report by receiving it from the board.

Therefore, the reported status information is information on the bus status, the node status, and the faulty or good status of the processor board status, and the routing table is updated with the information.

When the routing information updated by the LOMS is searched and the node or board state except the bus state is one of GOOD state, the service is normally performed.

When loading from the LOMS is needed, if the bus table is searched for a routing table in the LOMS and either the bus state is FALT or the node state and the processor board state are both FAULT, Alternatively, if necessary, the LOMS issues a routing table download request to the AS to load a routing table.

The data structure and routing table necessary for the routing table are as follows.

3 is a flowchart illustrating a routing table loading by a LOMS request according to the present invention.

4 is a flow diagram of routing table loading by HSSF request according to the present invention.

5 is a flowchart illustrating a routing table loading related task of the network matching device according to the present invention.

Describes the procedures for creating the HSNA transmit / receive and incoming tasks needed for the processor board of each network matching device or the HSSA board of the high-speed switch to interface with the HSNA board, and create the necessary queues for IPC between the tasks. do.

6 is a flowchart illustrating a routing table loading related task of the network matching device according to the present invention.

7 is a flowchart illustrating an internal task related to routing table loading of the network matching device according to the present invention.

FIG. 6 is a process for generating a HSNA transmit / receive task and an incoming task required for the processor board of each network matching unit or the HSSA board of a high-speed switch to interface with the HSNA board, and to generate a queue required for IPC between the tasks. Explain the procedure.

FIG. 8 illustrates a call connection flow diagram of a network matching device. FIG. 9 and FIG. 10 illustrate a flow required for data transmission / reception after a call connection. FIG. 11 and FIG. 12 illustrate a VME interrupt method with a high speed switch. Describes a flow chart of the HSNA transmit and receive tasks required to communicate with the processor board.

The present invention made as described above has the following effects.

Efficient routing between the network matching devices is required, and the following advantages can be obtained by implementing the method of the present invention.

First, in order to process 960 subscribers in a large-capacity communication processing structure, a system controller, a fast switching connection matching unit, and a frame relay network matching unit may be connected to a host of an information provider based on the system, thereby improving reliability and stability of the system.

Second, newly emerging networks can show efficient interworking between heterogeneous networks simply by developing and connecting matching devices based on high-speed switches.

Third, even users can see services through the detour path even when each network matching device has an abnormal condition.

According to the present invention, when the initial system starts normal operation based on the high speed switch (HSSF), the arbitration exchange of the high speed switch is performed through a routing table related to routing from the LOMS (Local Operation, Administration, Maintenance System) to the desired destination via the switch. In principle, the processor board of the HSSA or the Network Access System (NAS) is loaded to enable the efficient transmission and reception of desired information from the origin to the destination between the network matching units via a high-speed switch. .

In the mass communication processing system proposed in the present invention, the route setting method using the routing table can accommodate various types of newly emerging networks in addition to the telephone network and the packet network.In the early stage, it is possible to efficiently use the 960 channel of the telephone network subscriber and 256 ports of 56Kbps speed of the packet network subscriber. It is a way to set the path.

In addition, one-to-one communication and one-to-many communication between each node connected through the above method are supported, and the changed routing information can be immediately loaded from the LOMS, so when an error occurs in the communication path, the service can be efficiently provided through the bypass path. Its purpose is to provide a new routing method that enables this.

Claims (3)

When the PC communication users connected to the telephone network switch 100 dial a specific number for the communication processing service, a large-capacity communication processing system which collects a call from the exchange to the communication processing system, and communicates through the telephone network matching unit (TNAS) 101 The telephone network matching unit 101 is connected to a system, and a telephone network interface (TNIF) 101 having a trunk interface function and a modem function corresponding to a sub highway of the telephone network switch, and a serial subscriber port on a system bus. HSNA 101 board, which serves as a hub for connecting, and a TAXI serial interface for interfacing information per channel of a user to a data network, and a high-speed switching connection for internal high-speed packet switching function through the TAXI port ( HSSF) 102, a packet network matching unit (PNAS) 105 for connecting to a packet network, and an information provider unit (IP) 104. In the routing of the large-capacity communication processing system, including routing table information loaded from the LOMS, a first process updated in the LOMS, and a second process of performing IPC between the network matching unit and the fast switch. Path setting method of a large capacity communication processing system characterized in that. The method of claim 1, wherein the routing table itself is configured to request a routing table from a high speed switching connection (HSSF) 102 when loading routing information from the LOMS when the system is powered on. A first step divided into two when receiving from the LOMS; While performing data transmission / reception with the ASs, the LOMS receives a report on the state of the high speed switching access unit (HSSA), the disconnection and the channel state of the subscriber input / output unit (HSCA), and blocks a specific channel for smooth service or the LOMS. A second step of loading new routing information into each AS or HSSA board of the high speed switch; The method of updating a routing table in the LOMS includes information on a bus state, a node state, and a state of an NPA / SPA board, which is a processor board. Receiving a report (Report) in the path setting method of the mass communication processing system, characterized in that it comprises a third step of updating. The method of claim 1, wherein the state information reported in the second process is information of a bus state, a node state, and a fault or good for a processor board state. Updating the routing table with a first step; Searching for the routing information updated by the LOMS and performing a service normally when one of the nodes or the board state except the bus state is GOOD; When loading from the LOMS is needed, if the bus table is searched for a routing table in the LOMS and either the bus state is FALT or the node state and the processor board state are both FAULT, Or a third step of loading a routing table by dropping a routing table download request from the LOMS to an AS as needed.