KR100205015B1 - Method of loading application software for pnas - Google Patents

Abstract

The present invention relates to a method of loading an operation software, which is performed in a packet network matching system (PNAS) that provides packet network access and packet subscriber access in a large capacity communication processing system (ACPS), from a network management system (OAM) through a high speed switching device. In the related art, in the conventional method of loading a service from a remote system, there is a problem that a step-by-step loading technique according to the characteristics of a subsystem is not provided. Therefore, in order to solve the problem, the present invention provides a packet interface matching system with a software and a network interface for subscriber processing. Two types of operating software are installed on the main control board and the network access board, respectively, so that all the operating software is loaded from the network management device and the software for packet network interface is loaded on the main control board. Network connection By only performing communication between boards, the loading method can distribute the load on the entire large capacity communication processing system to which the network matching system is connected to the traffic inside the subsystem due to the frequent loading on the low stability sub-board. It has an effect.

Description

Multi-level loading method of packet network matching system operation software

The present invention relates to multi-stage loading of operating software of a packet matching system. The operating software of the packet matching system should apply new software to a system that is serving nationwide when expanding new services and improving existing services.

Therefore, the operating software of the packet network matching system is collectively stored in the network management system and loaded into each packet network matching system through a fast switching device.

In addition, various types of packet lines are connected to the network interface board of the packet matching system, and the shape of the line can be changed frequently according to the frequency of use of the information provider and the connection status of the packet subscriber. More relatively low reliability.

The imbalance between the boards increases the loading load with the network management system.

To prevent this, all the operating software of the packet matching system can be loaded into the main board, and the loading of the network interface board can be performed using the multi-stage loading method performed in each packet matching system.

It is an object of the present invention to be able to accommodate communication traffic with a network management system via a high speed switching device in each sub-system through the above method.

The present invention provides an X.25 protocol processing technique for communication with an information provider and a packet subscriber connected to a packet network, and a subscriber management and service processing technique and a packet network matching system for providing an information communication service to a packet subscriber and a packet network. The present invention relates to a higher-level protocol processing technology for communication with a network management system. In the conventional method of loading a service program from a remote system, there is a disadvantage in that step-by-step loading technology according to board characteristics of a subsystem is not provided.

The present invention seeks to improve the performance of the entire large-capacity communication processing system by improving the loading method of the operating software in which the most data transmission is performed in the packet network matching system for distributed acceptance of communication traffic.

1 is a diagram illustrating a service network configuration of a packet network matching system according to the present invention.

2 is a hardware configuration diagram of a packet network matching system of the present invention.

3 is a software block diagram for loading the operating software of the present invention.

4 is a diagram illustrating a loading protocol state transition of a packet network matching system according to the present invention.

5 is a multi-stage loading flowchart of a packet network matching system according to the present invention.

* Explanation of symbols for main parts of the drawings

10: PSTN USER 20: Phone Network (PSTN)

30: telephone network matching system (TNAS) 40: packet network subscriber (PSDN USER)

50: information provider (IP) 60: packet network (PSDN)

70: packet network matching system unit (PNAS) 71: main control unit (NPB)

71a: Startup program section 71b, 72a: loader section

71c, 72b: memory section 72: packet network connection section (PNIB)

73: high speed network connection board (HSNA) 74: main control board (NPA)

75: packet network interface board section (PNIA) 76: VME bus section

77: serial bus unit (S-Bus) 80: high speed switching unit (HSSF)

90: network management system part (OAM) 91: daemon part in OAM

92: loader portion in OAM 93: buffer portion

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

1 is a diagram illustrating a service network of a packet network matching system according to the present invention.

The service network configuration is a basic service configuration diagram of a packet network matching system targeting only the PSTN USER 10 and the packet network subscriber 40.

The service user connected to the telephone network unit (PSTN) 20 is connected to the packet network subscriber unit (PSDN USER) 40 connected to the packet network matching system unit (PNAS) 70 via the telephone network matching system unit (TNAS) 30. It establishes a connection with the information provider unit (IP) 50 and receives the information retrieval service through the connection.

Each network matching system performs an interface function and a substantial service processing function for connecting not only an existing network but also various newly emerging networks to a large capacity communication processing system.

The network management system unit (OAM) 90, which is in charge of the operation management of the network matching system, is largely composed of configuration management, performance management, fault management, and billing management blocks, and associated with loading of operation software of each network matching system. The part performs configuration management in the block.

In addition, there is a high speed switching unit (HSSF) 80 that connects various modules constituting the large-capacity communication processing system at high speed to each other and serves as a high speed interworking network by serving a transport of service traffic.

2 is a hardware configuration diagram of a packet network matching system of the present invention.

According to the above configuration, the packet network interface board unit (PNIA) 75 equipped with the X.25 protocol for packet network access can accommodate four 56 Kbps packet lines or one 256 Kbps packet line, respectively. In addition, one packet network matching system is composed of eight packet network interface boards (75).

The main network processing board assembly (NPA) 74 which controls the four packet network interface board units 75 and calculates service control and billing information of subscribers is the packet network interface board unit and the serial bus unit S. (BUS) 77 is redundantly connected.

In addition, the main control board 74 has an active / standby redundancy structure for stabilizing the system and always maintains the same contents of the main memory.

The High Speed Network Access Board (HSNA) 73 for interfacing with the high speed switching unit manages two main control board units and is connected to the VME bus unit 76.

The portion of the operating software in the packet network matching system unit 70 that performs service processing functions for subscribers of the telephone network and the packet network is provided to the main control board unit 74 and for the state management of the packet network access line and X.25 protocol processing. The portion is mounted on the packet network interface board portion (PNIA) 75.

3 is a software block diagram for loading operating software of the present invention. First, in order to load the operating software of the packet network matching system unit (PNAS) 70, the main controller board 74 and the packet network interface board unit 75 need portions for operating program loading, respectively, which are respectively the main controller (Network Adapter). The loader section 71b in the processing block (NPB) 71 and the loader section 72a in the packet network interface block (PNIB) 72 are formed.

The interface procedure of each block for loading is summarized as follows.

When the dominant main control board unit 74 is rebooted to start loading, the start program unit 71a located in the read only memory (ROM) of the main control board unit 74 is the network management system unit (OAM). A loading request signal is sent to 90, and the loader section 92 in the network management system section is informed.

When the loading of the operation program between the loader unit 92 in the network management system unit and the loader unit 71b in the main control unit 71 is completed, the main control unit 71 requests the packet network connection unit 72 to load the operation program. It is performed with the loader portion 72a in the unit.

In addition, when the packet network interface board unit (PNIA) 75 is rebooted, the loader unit 72a of the packet network connection unit 72 requests the main control unit 71 to load the loader unit 72a in the main control unit 71. And loading.

On the other hand, when you want to load a new operating program to the packet network matching system unit (PNAS) 70, the network management system unit 90 informs all packet network matching system unit 70, and each main control unit 71 makes a request Start loading.

Table 1 below shows the types and uses of primitives used in communication protocols for loading operating software.

The communication between the packet network matching system and the network management system unit 90 uses an internal protocol used for the whole system subsystem of the mass communication processing system.

In this case, as a signal related to the operation program loading of the packet matching network system 70, the network management system unit reports the loading request signal 1, the data loading signal 2, and service after completion of loading. There is a complaint (4) that requires the network management system unit to load the new operating software to the packet network matching system unit 70 to replace the signal (3) and the operating software in service.

Table 2 shows communication primitives for loading operational software between NPA and PNIA.

Communication between the main control board unit 74 and the packet network interface board unit 75 inside the packet network matching system unit is performed by board-to-board communication, and the related signals include a load request signal 5 of the packet network interface board unit and data loading. A signal 6, a data transfer completion signal 7, a loading completion signal 8, and a loading start signal 9 at the request of the main control board unit 74, and the like.

4 is a diagram illustrating a loading protocol state transition of the packet matching system according to the present invention.

The packet network matching system unit (PNAS) 70 transitions from the initial state (Idle) (S0) to the system boot (S6) to the waiting PNAS loading state (S1) and the PNAS_Load_Request to the network management system unit (90). Send.

When receiving the first PNAS_Load_Data (S7) from the network management system unit, the transition to the PNAS loading state (PNAS_data Loading) (S2) and receives the operating software.

When the last PNAS_Load_Data (S8) is loaded, the state transitions to Awaiting PNI Loading (S3) and transmits NPADemandLoad to the packet network connection 72.

When receiving the PNLoadRequest (S9) from the packet network connection unit 72, it transitions to the state (PNI_data Loading) (S4) and transmits a PNILoadAction indicating the start of loading to the packet network connection unit 72 and performs operating software loading.

When the loading is completed and receives the PNILoadRequest (S10) from the packet network connection unit 72 transitions to the Service Ready (S5) state and sends a Svc_Ready_Report to the network management system unit 90 to inform that the service is available.

When the packet network matching system unit 70 is down in the service preparation state S5, the state transitions to the state S0, and when the OAM_Demand_Load (S12) is received from the network management system unit, the state transitions to the state S1 and a new loading procedure is performed.

In addition, when receiving the PNILoadRequest S11 requesting the packet network interface board 75 to load itself in the state S5, the state transitions to the state S4 and the loading procedure between the main control unit 71 and the packet network connection unit 72 is performed.

5 is a multi-step loading flowchart of a packet network matching system according to the present invention.

First, the main control unit (NPB) 71 of the packet network matching system receives a loading request request signal (OAM_Demand_Load) from the network management system unit (OAM) or generates a loading task and a data reception queue when loading is required by itself. ). The loading task transmits a loading request signal (PNAS_Load_Request) to the network management system unit (OAM) 90 (101) and waits for loading data in the data reception queue (102).

When the data is received, it is determined whether it is normal loading data (103). If it is not loading data, it waits again in the data receiving queue (102).

In the case of loading data after the determination, the received data is recorded in the memory (104).

It is determined whether the received data is the last data (105), and if it is not the last data, it waits for the next data again (102).

After receiving the last loading data, the main control unit 71 transmits a loading request request signal (NPADemandLoad) to the packet network connection unit 72 to load the operating software of the packet network interface board unit (PNIA) 75. (106).

The packet network access unit 72 receiving the signal generates a loading task and a data reception queue (107).

The loading task transmits a load request signal (PNILoadReques) to the main controller 71 (108), and waits for data queue (109).

It is determined whether the received data is a loading completion signal (110). If it is not a loading completion signal (111), it is determined that the loading data signal is 111. If it is loading data, it is recorded in the memory (112) and the next data is waited (109).

Data that does not correspond to the two signals is ignored and waits for the next data.

When the loading is completed, the main control unit 74 transmits a service ready signal Svc_Ready_Report to the network management system unit 90 and transfers control to the loaded operating program (114). ).

If loading is required due to an abnormality of the specific packet network interface board unit 75 during the service, only after the loading task generation procedure 107 is performed.

At this time, the service preparation completion signal transmission procedure 113 to the network management system unit 90 is omitted.

The partial loading procedure of the main control board unit 74 and the packet network interface board unit 75 is performed without communication with the network management system unit 90 and independently of the operation of the other packet network interface board unit 75. Even during loading, the service of the packet matching system continues.

Due to the present invention, the following effects can be obtained.

Packet network matching system, which is a sub-system of mass communication processing system, receives integrated management through network management system (OAM).

According to the above, all the operating software of the packet network matching system is also stored in the network management system unit, and the structure is applied to the service by downloading and supplementing and modifying each packet network matching system unit as necessary.

Communication of the packet network matching system unit and the network management system unit is via an internal high speed switching device connecting all components of the mass communication processing system, and the communication between frequent subsystems affects the entire system. Therefore, through the multi-step loading method of the packet matching system, the software loading caused by the board having a relatively low reliability can reduce communication traffic with the network management system and can process it in the packet matching system.

According to the above, it is effective in improving the performance of the entire mass communication processing system.

Claims (7)

A telephone network matching system unit (TNAS) 30 is connected to a telephone network unit (PSTN) 20 of a packet network matching system for a telephone network subscriber (PSTN USER) 10 and a packet network subscriber (PSDN USER) 40. Connection to the packet network unit (PSTN) 60 and connected to the information provider unit (IP) 50 connected to the packet network matching system unit (PNAS) 70 via the packet network matching system unit (PNAS) 30. The service user receiving the information retrieval service through the connection, and the operation management of the network matching system, and consists of configuration management, performance management, fault management, and billing management blocks. The part related to the loading of the network management system unit (OAM) 90 performed in the configuration management block and the various modules constituting the large-capacity communication processing system connected to each other at high speed and responsible for the transport of service traffic to serve as a high speed interworking network. In order to load the operating software of the packet matching system including a high speed switching unit (HSSF) 80, the packet matching system unit 70 transitions from the initial state (S0) to the S1 state by booting the system and the network management system A first process of transmitting a PNAS_Load_Request to the unit 90, a second process of transitioning to a state S2 upon receiving the first signal S7 from the network management system unit, and a loading of the operating software; Transitioning to the packet network connection unit 72, and transmitting a NPADemandLoad to the packet network connection unit 72; when receiving the signal S9 from the packet network connection unit 72, transitioning to state S4 and transmitting a PNILoadAction indicating the start of loading to the packet network connection unit 72; A fourth step of performing operating software loading, and when the loading is completed and the signal S10 is received from the packet network connection unit 72, the state service ready state S Transition to 5 and send a Svc_Ready_Report to the network management system unit 90 to inform that the service is available, and if the packet network matching system unit 70 is down in the service ready state (S5) to the state S0, A sixth step of transitioning to the state S1 to perform a new loading procedure when receiving the signal S12 from the network management system unit; and a state S4 when receiving a signal S11 requesting the packet network interface board unit 75 to load itself in the state S5. And a seventh step of performing a loading procedure between the main control unit (71) and the packet network connection unit (72). The loading task of claim 1, wherein the first process receives a loading request request signal (OAM_Demand_Load) from the network management system unit (OAM) in the main control unit (NPB) 71 of the packet network matching system unit or loads a load task. A first step of generating a data reception queue (100) and a loading request signal (PNAS_Load_Request) is transmitted to the network management system unit (OAM) 90 in the loading task (101) and waiting for loading data in the data reception queue. (102) A multi-stage loading method of packet network matching system operating software, comprising the second step. 2. The method of claim 1, wherein the second process is a first step of determining whether the data is normal loading data when receiving data (103) and waiting again in the data receiving queue (102). And a second step of recording (104) the received data into the memory. The method of claim 1, wherein the third process determines whether the received data is the last data (105) and waits for the next data again if it is not the last data (102) and after receiving all of the last loading data And transmitting (106) a loading request request signal (NPADemandLoad) to a packet network interface board unit (PNIA) (75). The method of claim 1, wherein the fourth process comprises the step (107) of generating a loading task and a data receiving queue in the packet network access unit (72) receiving the signal, and the loading task requests the loading control to the main controller (71). Transmitting (108) a signal (PNILoadRequest) and waiting (109) in a data reception queue. The method of claim 1, wherein the fifth process determines whether the received data is a loading completion signal (110), determines whether the received data is a loading data signal or not (111), and if the loading data is recorded in the memory (112). A second step of waiting for the next data (109) and a second step of ignoring data not corresponding to the two signals and waiting for the next data. According to claim 1, wherein in the seventh process, when the loading is completed, the main controller 74 transmits a service preparation completion signal (Svc_Ready_Report) to the network management system unit 90 (113) and transfers control to the loaded operating program. The first step of starting the service (114) by moving (114) and when loading is necessary due to an abnormality of the specific packet network interface board unit 75 during the service is performed only after the loading task generation procedure 107, The second step of omitting the service ready signal transmission procedure 113 to the management system unit 90 and the partial loading procedure of the main control board unit 74 and the packet network interface board unit 75 are performed by the network management system unit ( And a third step of continuing the service of the packet network matching system even during partial loading without communication with the network and without regard to the operation of the other packet network interface board unit 75. Multi-step loading method of the network matching system operational software.