CN1324844C - Method for providing data to members of network synchronously by gating system - Google Patents

Abstract

A method for synchronizing configuration data from a network management system to a network element. An operation and maintenance terminal selects a two-dimensional table of data to be synchronized; the operation and maintenance terminal initiates a synchronization operation request to a background network manager; The table is adapted, and then the table is analyzed, and the table data is packaged into the structure required by the network element; the background network management sends a synchronization request message to the front-end network element; after the other party receives the request response, if it agrees to receive the data, it sends back a response response message, Synchronous communication between the front and backend starts; the background network management transmits the data content to be transmitted to the front-end network element; after the front-end network element receives the data, it performs data update processing, saves the data to the system hard disk, and sends back a communication end message. The present invention can conveniently and safely realize the completeness and accuracy of memory data transmission to the foreground network element; and realize the independence from specific network elements and the universality for different two-dimensional data table structures.

Description

Method for Synchronizing Configuration Data from Network Management System to Network Elements

technical field

The invention relates to a data synchronization solution in the communication field, in particular to a method for synchronizing data from a background network manager to a foreground network element in the mobile communication field.

Background technique

Data synchronization, in a simple understanding, is a data transmission mechanism. The function of data synchronization is to complete the data transmission between the network element and the front and back of the network management system, and to ensure the consistency and integrity of the data in the network management system and the network element system after transmission.

The data required for the operation of the foreground network element MP (Main Process) is provided by the background network management system. In the initial situation, the background network management will transmit the configured data to the MP, and the MP will use the data transmitted by the background network management to run and save the data to the hard disk. Or the user modifies the configuration data through the background network management operation and maintenance terminal, and the background network management system transmits the modified configuration data to the MP to update the MP data.

Since there are many types of front-end network elements, there are also many types of two-dimensional table structures for each type of network element data, and the table structure changes frequently. This requires a unified and general synchronization framework to realize data transfer from the background network management to the front-end network elements. send. The existing synchronization method is to use Ftp, but the data format in the network management system and the network element system is quite different, and the conversion of the data structure cannot be performed in Ftp. The conversion work must be based on the development of tools for different network element data structures or through manual conversion. Moreover, the source code needs to be recompiled every time. The workload of conversion is relatively large. At the same time, the synchronization operation is cumbersome, has no versatility and is extremely unreliable. .

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for network management to synchronize data with network elements, which can conveniently and safely realize the integrity and accuracy of memory data transmission to front-end network elements; Independence and versatility for different two-dimensional data table structures.

The main steps of this method are as follows:

1.1 Select the data two-dimensional table that needs to be synchronized at the operation and maintenance terminal of the network management system;

1.2 The operation and maintenance terminal initiates a synchronization operation request to the background network management synchronization agent process;

1.3 After the background network management synchronization agent process receives the synchronization message, it performs table adaptation according to the table name information, then analyzes the table, and packs the table data into the structure required by the network element; among them, the table adaptation refers to each table structure The specific description of the table is saved and described in an abstract unified format (such as a configuration file). When adapting, the structure information of the specific table is obtained by analyzing the description of this format, and then the process of parsing and repackaging the table content is performed. .

1.4 The background network management synchronization agent process then sends a synchronization request message to the foreground network element synchronization agent process;

1.5 After the foreground network element synchronization agent process receives the request message, if it agrees to receive the data, it will send back a reply response message, and the front and backends will start synchronous communication; if the network communication is abnormal or the data structure passed by the background network management synchronization agent process to the frontend network If it does not exist in the element, the synchronization agent process of the foreground network element returns a message of refusing to receive data;

1.6 The background network management synchronization agent process transmits the data content to be transmitted to the foreground network element synchronization agent process;

1.7 After receiving the data, the synchronous proxy process of the foreground network element performs data update processing, saves the data to the system hard disk at the same time, and sends back a communication end message.

In the present invention, the background network management synchronization agent process transmits the data content that needs to be transmitted to the foreground network element synchronization agent process. The data table of the constraint relationship is completed in one transmission. If a table fails to be transmitted, the entire synchronization process will be invalid and start again.

The transmission of each form includes the following steps:

4.1 The background network management synchronization agent process sends the transmission data two-dimensional table transmission start message to the foreground network element synchronization agent process;

4.2 The synchronization agent process of the foreground network element sends back the response message of preparing to receive;

4.3 The background network management agent process sends the table structure information such as the two-dimensional table name, record length, field description table, and field number to the front-end network element synchronization agent process. After the front-end network element synchronization agent process confirms receipt and performs format verification, Resend the content of the table data;

4.4 After the content of the table data is transmitted and confirmed, send a two-dimensional table transmission end message;

4.5 The foreground network element sends back a confirmation message.

In the present invention, the foreground network element synchronization agent process stores the received table structure information such as fields and the received table data in a temporary directory, and after the transmission of the data is all completed and correct, it is stored in the memory and stored. Update the hard disk data, otherwise, delete the temporary directory and retransmit.

During the synchronization process, both the sending and receiving parties set timers. During the sending and receiving process, they wait for the other party’s answer after sending and receiving data. If the other party’s answer is not received after the time expires, it is considered that the transmission has failed, and each returns to the idle state. restart.

The present invention can conveniently and safely realize the completeness and accuracy of memory data transmission to the foreground network element; and realize the independence from specific network elements and the universality for different two-dimensional data table structures. In terms of implementation, a table adapter is provided on the network management side, and the table structure information of the general network management system is converted into the data structure of a specific network element through table adaptation, and then reliable packet data transmission is realized between the network management system and network elements, and the network management system is transferred to the network element system. Data synchronization, with a system structure in the form of a soft bus, realizes the pluggability of network elements and table structures, and when adding network elements or tables, the background network management only needs to add corresponding description information in the table adapter.

Description of drawings

Figure 1 is a network management to network element synchronization data topology structure diagram;

Fig. 2 is a frame diagram of a system for synchronizing data from network management to network elements;

Fig. 3 is the main flowchart of the present invention.

Detailed ways

The entire system consisting of network management and network elements adopts a distributed topology architecture, is built on a Tcp/IP network, and communicates through Ethernet, as shown in Figure 1.

Figure 2 is a diagram of the network management to network element synchronization data system architecture diagram, which can be divided into four parts in terms of logical structure: operation and maintenance terminal, network management synchronization agent process, network element synchronization agent process, table adapter and database data.

1) The operation and maintenance terminal provides a graphical interface through which users can perform data synchronization operations.

2) The network management synchronization agent process consists of two parts: the communication unit and the table adaptation unit. The communication unit is responsible for communicating with the operation and maintenance terminal, obtaining the synchronization data information and returning the data synchronization result; The conversion of the data format between elements, first obtains the table name information according to the communication unit, then reads the table structure information and table data from the database through the database engine according to the table name information, and then sends them to the table adapter for analysis so as to realize network management and Data format conversion between network elements, and finally the parsed content is returned to the communication unit and sent to the network element synchronization agent process.

3) The network element synchronization agent process also consists of two parts: a communication unit, a read-write memory and a hard disk unit. The communication unit obtains synchronization information from the network management synchronization agent process, and returns the synchronization result information to the network management synchronization agent process; the read-write memory After obtaining the synchronized table structure information and table data from the communication unit with the hard disk unit, first verify the format, and if the verification passes, use these data to update the memory and hard disk, and then return a success message. If the verification fails or an error occurs when the memory and hard disk are updated An exception returns a failure message.

4) Table adapter and database data. The table adapter stores the table structure information of each data two-dimensional table required by the front-end network element in a certain format (such as a configuration file), and the content of these data two-dimensional tables is stored in the database, indicating that the adapter Parse and transform table data with table structure information.

Synchronizing data from the network management to the network element is to realize synchronous updating of the background network management data two-dimensional table to the foreground MP. It can achieve the following functions:

1) It can provide users with a graphical interface to select the two-dimensional table of synchronized data;

2) For the selected data table, the correct data content can be obtained from the database and the analysis of the table can be correctly realized through the table adaptation function unit;

3) It can convert the data to be transmitted into the data format required by the network element;

4) Correctly handle the message communication between the front network management and network elements;

5) Correctly handle exceptions and errors in the synchronization process and resolve them in a timely manner;

6) Ensure that the synchronously updated data is correct and reliable.

In order to achieve the above functions, the entire synchronization program adopts the following solutions in the system design:

1) The network management maintenance terminal is responsible for providing an operation interface for users to select two-dimensional data tables to be synchronized;

2) The network management server provides a background network management synchronization agent process, which accepts the synchronization request sent by the maintenance terminal, and reads the table data from the database according to the transmitted table name information to be synchronized.

3) The background network management synchronization agent process performs specific table matching through the table adapter unit, obtains the structural information of the table, then converts the table data into the format required by the network element, and then generates specific data transmission packets, such as table header information in a specific format, Field information in a specific format, record information in a specific format, etc.

4) For abnormalities and errors in the synchronization process, both the sending and receiving parties have an error response message mechanism to judge and process the abnormal situation.

5) During the synchronization process, the mutual control mechanism of the sending and receiving parties is adopted. Both the sending and receiving parties set timers and wait for the other party’s response after sending and receiving data. Return to idle state.

6) During the synchronization process, since data synchronization is mainly used for the transmission of two-dimensional table data objects in the database, data tables with mutual constraints must be modified simultaneously in one transmission to maintain data integrity. Therefore, during the synchronization process, if a table fails to be synchronized, the entire synchronization process is invalid.

7) During the synchronization process, the network element synchronization agent process does not update the memory immediately for the received data, but temporarily saves it in the temporary directory. If the synchronization fails, the temporary directory is deleted immediately, and only the transmission of this data is completed And only after it is correct, it is stored in the memory.

8) When the network element synchronization agent process updates the memory and hard disk, because the field descriptions of the two-dimensional table in the network management system and the network element system may be different, the receiver shall prevail for the difference in the fields, and the decision is made.

The present invention is described through an embodiment below in conjunction with Fig. 3:

First, select the data two-dimensional table to be synchronized at the operation and maintenance terminal of the network management system; the operation and maintenance terminal initiates a synchronization operation request to the background network management synchronization agent process; after receiving the synchronization message, the background network management synchronization agent process performs table adaptation according to the table name information Configure, then analyze the table, and pack the table data into the structure required by the network element; then:

301) The background network management synchronization agent process sends a request communication message to the foreground network element synchronization agent process, and the message contains specific request information, including request source, request mode, and specific requirements for transmission, etc.;

302) After the front desk network element synchronization agent process receives the request message, it migrates state; if its current state is an idle state, it makes itself in the accepting state, and simultaneously sends back an agreement communication message to the background network management synchronization agent process; otherwise, it sends the background network management synchronization The agent process returns a link busy message, which contains error information, indicating that the synchronous receiving process of the foreground network element is in the busy state of transmission, and will not be processed;

303) After receiving the communication acknowledgment message, the background network management synchronization agent process continues to send a table transfer start message for the transmission data two-dimensional table to the foreground network element synchronization agent process.

304) After receiving the message, the receiver's foreground network element synchronization agent process sends back a ready to accept response message, ready to receive the information of a certain data two-dimensional table;

305) After the background network management synchronization agent process receives the ready to accept response message, the two-dimensional table name, record length, field description table, field number and other table structure information are sent to the foreground network element synchronization agent process with a message packet in a certain format;

306) After the front-end network element synchronization agent process receives the message, it detects whether the version of the data table is correct and whether the field description information is correct, and judges whether the field is correct, and saves the information in a temporary directory, and then synchronizes it to the background network management The agent process sends back the table information to confirm the response message;

307) After the background network management synchronization agent process receives the table information data confirmation response message, it sends a table data message to the front-end network element synchronization agent process. The message includes the number of records in the data table, information such as addition and deletion marks and corresponding records; the front-end network element After the synchronization agent process receives the message, it loads all the received data into a specific work area, and the system hard disk work area write function automatically realizes the data copy from the work area to the hard disk, and sends back the table data confirmation to the background network management synchronization agent process Message; part of the table data content is transmitted, and the next part is transmitted after a part of the transmission confirmation is received, and all the data content of a table is directly transmitted;

308) After all the transmissions of the table are finished, the background network management synchronization agent process sends the table transmission end message to the foreground network element synchronization agent process;

309) After receiving the table transmission end message, the front-end network element synchronization agent process writes all the contents of the hard disk read-write workspace to the disk, closes the database read-write workspace, and sends a confirmation message to the loopback message table transmission end, ready to receive the next data transmission of tables;

310) After the background network management synchronization agent process receives the table transmission end confirmation message, if there are data tables that need to be synchronized, it will send a table transmission start message to the foreground network element synchronization agent process in a loop; The network element synchronization agent process sends a communication end request message;

311) After the front-end network element synchronization agent process receives the communication end message, it sequentially reads all the files in the hard disk temporary directory into the hard disk read-write workspace, and stores them in the memory two-dimensional table according to the type of operation (if none, all are added) Realize the loading and updating of data records, and modify the corresponding two-dimensional table indexes and queues at the same time. After the loading of all data on the hard disk is completed, all temporary files are deleted, the state is switched to an idle state, and a communication end confirmation message is sent back to the background network management synchronization agent process, and this synchronization ends.

Among them, the message transmission between the data sender and the receiver adopts the response mode. If no acknowledgment or message is received within a certain amount of time, the transfer fails.

Claims (6)

1, a kind of network management system comprises that to the method for the synchronous configuration data of network element step is as follows:

1.1 the operating maintenance terminal in network management system need to select the data in synchronization bivariate table;

1.2 operating maintenance terminal is initiated the simultaneous operation request to background net management sync agent process;

After 1.3 background net management sync agent process receives synchronization message, show according to table name information adaptive, the parsing of showing then, the structure that will the table packing data becomes network element to need;

1.4 background net management sync agent process sends synchronization request message to foreground network element sync agent process immediately;

1.5 after foreground network element sync agent process was received request message, if agree to receive data, then the return response response message began synchronous communication between the AM/BAM; If network communication does not exist unusually or in the network element of background net management sync agent process biography past data structure foreground, then foreground network element sync agent process is returned the rejection data-message;

1.6 the data content that background net management sync agent process will need to transmit sends foreground network element sync agent process to;

1.7 after foreground network element sync agent process is received data, carry out Data Update and handle, simultaneously data are saved on the system disk loopback communication end.

2, the described network management system of claim 1 is to the method for the synchronous configuration data of network element, it is characterized in that, adaptive being meant of described table all preserved all table information and describe by the unified form that takes out, and obtains the concrete structural information of showing by this format description information is analyzed when adaptive.

3, the described network management system of claim 1 is to the method for the synchronous configuration data of network element, it is characterized in that, the data content that described background net management sync agent process will need to transmit sends foreground network element sync agent process to, be to show one by one to transmit, pass a back table again last the table end of transmission and after confirming, the tables of data with mutual restriction relation is once finished in the transmission, if a table transmits failure, then whole synchronizing process is invalid, restarts.

4, the described network management system of claim 3 is characterized in that to the method for the synchronous configuration data of network element, and each transmission of opening table may further comprise the steps:

4.1 background net management sync agent process sends transmission data bivariate table to foreground network element sync agent process and transmits beginning message;

4.2 foreground network element sync agent process loopback prepares to receive response message;

4.3 the background net management agent process sends to foreground network element sync agent process with two-dimentional table name, record length, field description table, field number list structure information, after foreground network element sync agent process acknowledges receipt of the row format checking of going forward side by side, send the content of table data again;

4.4 after the content of showing data has transmitted and confirmed, send the bivariate table end-of-transmission message;

4.5 foreground network element loopback acknowledge message.

5, claim 1,2,3 or 4 described network management systems are to the method for the synchronous configuration data of network element, it is characterized in that, foreground network element sync agent process is kept at field list structural information of receiving and the table data of receiving earlier in the temp directory, the transmission of pending data be all over and correct after, just deposit internal memory in and upgrade hard disc data, otherwise the deletion temp directory retransfers.

6, claim 1,2,3 or 4 described network management systems are to the method for the synchronous configuration data of network element, it is characterized in that, in synchronizing process, receiving-transmitting sides all is provided with timer, in the transmitting-receiving process, all waits for the other side's answer after transceive data, if do not receive that in the timing expiration the other side replys, be considered as this bust this, get back to idle condition separately, restart.

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