CN1301606C - The method of using terminal to manage transmission network - Google Patents

Abstract

The present invention relates to a method for using terminals to managing transmission networks, which relates to the technical field of telecommunication network management. The method comprises the following steps: firstly, the datagram of commands between a traditional network element management layer and a network element layer is defined into a character command in a certain format; secondly, a module providing an access function, an input module in charge of receiving the management command character strings of terminals, and an output module used for printing the execution results of the management command character strings to the terminals are set in network elements; thirdly, a module used for managing character commands, a command analysis module and a safety management module are set in a network element management layer module; fourthly, the information data of all of the network elements is stored in the network elements through user-defined management commands or by using GUI network management; fifthly, message queues between multitask are adopted. The method of the present invention reduces the requirements of network management to hardware systems has the advantages of consistent data and good flexibility and can effectively manage transmission networks.

Description

The method of using terminal to manage transmission network

technical field

The invention relates to the technical field of telecommunication network management, in particular to a method for using a terminal to manage a transmission network in the technical field of telecommunication network management.

Background technique

The transmission network is the foundation of the telecommunication network. With the development of business requirements and science and technology, the network elements in the transmission network have included a series of products such as SDH digital synchronization equipment and DWDM dense wavelength division multiplexing equipment. The application of these transmission equipment is inseparable. Open network management, their powerful functions and superiority can only be fully displayed through advanced management systems.

According to the layered management concept of the telecommunication network, the management of the transmission network is divided into the network management layer, the network element management layer and the network layer. The network element management layer is mainly responsible for the management of a group of network elements. Its functions are assigned by the network management layer. Currently, the functions of the network element management layer are very strong. Usually, the management functions it provides mainly include alarm management/performance management, security management, Configuration management, maintenance management. At present, the management method of the network element management layer of the general transmission network is to use the network management software with a graphical interface developed by each equipment manufacturer independently. The GUI network manager can manage the network by installing this software on a PC or workstation. This method has powerful functions and is easy to operate, especially in the case of complex networking, which has obvious advantages and is widely used. However, this management method also has certain defects. First, it requires high system hardware configuration. To make the network management system perform normally, a high-performance computer is often required. At the same time, it is often necessary to install additional system software to ensure the operation of the network management software. , these costs account for a large proportion in some simple networking environments. The second is poor flexibility. In any case, users must ensure that their computers have network management software if they want to manage equipment. It is also necessary to restore the backup data, which is obviously not applicable in some practical applications or engineering maintenance. Finally, because these GUI network managers store the network element data in the transmission network in the network management database, this may cause inconsistency between the data stored in the network management and the data stored in the network elements in the actual network under certain abnormal conditions. Therefore, there are problems in the prior art that the network management has high requirements on the hardware system, poor flexibility, inconsistent data, and the like.

Contents of the invention

The method of the present invention is to solve some problems of the above-mentioned existing transmission network management methods, so as to reduce the requirements of the network management on the hardware system, ensure that the network management data is consistent with the data stored in the network elements in the actual networking, and flexibly use the terminal to manage the transmission network, which is more efficient. Effective management of the transmission network.

The technical solution of the present invention is to embed the network element management layer function of the transmission network management in the transmission network element, and then manage the transmission network through a hyper terminal or Telnet. HyperTerminal or Telnet.

Technical scheme of the present invention is as follows:

First, according to the actual application, the traditional command between the network element management layer and the network element layer, that is, a datagram with a certain agreement, is defined as a character command with a certain format;

Secondly, a module that can provide access functions, an input module responsible for receiving terminal management command strings and an output module for printing the execution results of management command strings to the terminal are set in the network element management layer; to meet user needs Access network elements through hyper terminal or telnet for network management;

The 3rd, the module that can convert the management character command of the network element management layer into the datagram command and the datagram command into the management character command of the network element management layer is set in the network element management layer; Before the management character command of the meta management layer is converted into a datagram command, the legalization of the string command input from the terminal ensures that the character command input from the terminal can be correctly converted into a datagram command by the command conversion module and sent to the AGENT program , with a command processing module; and in order to ensure that only legitimate users and commands with authority can be executed, a security management module is also set up to verify user identity and user authority;

Fourth, in order to make each network element have information about all network elements, such as network topology and physical connections between network elements, these information data are stored in network elements through custom management commands or using GUI network management ;

Fifth, in order to solve the problem that the network element management layer and the AGENT program logically belong to different levels, in order to provide a communication method between the two levels, a message queue between multiple tasks is used.

The method of using the terminal to manage the transmission network in the present invention is defined as a character command between the traditional network element management layer and the network element layer with a certain format, which can be a configuration management command, an alarm management command, a performance management command, a security management command, a maintenance command, etc. Administrative commands.

Using the method of terminal management transmission network, when the user accesses the network element through the super terminal for network management, use the driver of serial port communication, when the user accesses the network element through Telnet for network management, there is a receiving client connection Telnet server.

Can find out that technical advantage of the present invention is according to above-mentioned design scheme:

1. Since the function of the network element management layer is embedded in the network, it only needs to have a super terminal or Telnet function on the computer for management, and there is no need for any additional system software, thus solving the problem of software and hardware costs.

2. Since the network element management layer function is embedded in the network element, it is not necessary to install network management software under any circumstances, and it is no longer involved in the recovery of network element backup data, so the flexibility is better.

3. When managing a group of network elements in the transmission network, the data used is embedded in the network elements and does not involve hierarchical storage of data, thus avoiding data inconsistency. To sum up, adopting the design scheme of the present invention solves the problems of relatively strong dependence on GUI network management in the process of deployment and maintenance of transmission equipment, high cost of software and hardware, and possible inconsistency of data in the case of simple networking, which is convenient The user can monitor and manage the transmission equipment.

Description of drawings

Figure 1 System structure diagram of transmission network management using terminals

Figure 2 Structure diagram of the core module of the network element management layer

Specific implementation method

Description of several concepts involved:

1) GUI: Graphical User Interface.

2) AGENT: Agent. It responds to the administrator's command, implements specific management operations on the relevant management objects, and returns notifications reflecting the behavior of the objects to the administrator.

3) Command legitimacy: it means that the format of the input command message conforms to the message agreement of the network element management layer.

4) Command validity: it means that the input command message can be processed by the command processing module of the network element management layer.

The realization of this scheme is mainly based on the real-time embedded working environment. Its operating system should have the characteristics of a real-time operating system that supports multitasking and message mechanism and has the programming function of BSDSOCket. It requires the background host to have the function of Telnet or hyper terminal. When using this scheme to manage the transmission network, the structure of the system is shown in Figure 1. It can be seen from this figure that compared with the traditional network element layer management, the network element management layer is added to the network element. Below in conjunction with Fig. 1, Fig. 2, the present invention is further described; First according to the command interface message between the network element management layer-network element layer, the order and the order parameters between the network element management layer and the AGEN are defined, and these orders and parameters are all A string uniquely recognized in the system with a special format.

Secondly, users need to be able to access network elements through HyperTerminal or telnet for network management. First, there must be modules that provide access functions in the network elements. That is, if using HyperTerminal, serial communication drivers are required; Requires a Telnet server that accepts client connections. Secondly, there must be an input and output processing module in the network element. The input module is responsible for receiving the management command string of the terminal, and the output module is used to print the execution result of the management command string to the terminal. That is to create the initialization module of the network element management layer. The initialization function of this module includes initializing the serial port driver for RS232 communication, creating a Telnet server for receiving Teinet client connections, creating a resident task for receiving input from the HyperTerminal, and creating the network element management layer. Message queue for communicating with AGENT application modules.

Third, in the traditional network element management, the AGENT program in the network element receives the data message from the manager of the QX or F interface, and then forwards and executes it to each target. The introduction of the above management scheme is a supplement to the existing transmission management scheme. Therefore, after the management character command message of the network element management layer arrives at the AGENT, it must also comply with the message agreement between the manager and the AGENT. Therefore, a module for converting the management character commands of the network element management layer into datagram commands and converting the datagram commands into management character commands of the network element management layer is required in the network element management layer. At the same time, before converting the management character commands of the network element management layer into datagram commands, we need to ensure the legitimacy of the string commands input from the terminal, so we need to introduce a command processing module, which ensures that the character commands input from the terminal can be The command conversion module correctly converts it into a datagram command and sends it to the AGENT program. Finally, as long as the management of the network will involve a security issue, we have introduced a security management module. The function of the security management module is to verify user identity and user authority to ensure that only legitimate users and commands with authority can be executed.

Fourth, since a group of network elements is managed through the hyper terminal or telnet, each network element must contain information about all network elements, such as network topology and physical connections between networks. These information can be configured to the NE through custom management commands or using the GUI network management system. After the configuration is completed, the data is stored in the network element, and the data involved in terminal operations in the future shall be based on this.

Fifth, although the network element management layer is integrated in the network element together with the AGENT program, logically speaking, they still belong to different levels, and it is necessary to provide a communication method between the two levels. We use the multi-tasking method Message queue between.

To sum up, the construction of the network element management layer involves input and output modules, command processing modules, security management modules, management commands to datagram command conversion modules, and datagram commands to management command conversion modules. Commonly referred to as the core module of the network element management layer. Figure 2 shows the relationship among modules of the network element management core module and between the network element management core module and the AGENT application program. It can be seen from Figure 2 that the core module of the network element management layer includes 6 sub-modules, and the functions of each sub-module are as follows:

1. Input management module: this module receives character commands from HyperTerminal or Telnet, and calls the command processing module after receiving. This module contains two sub-modules, one for receiving input from HyperTerminal and one for receiving input from Telnet. Both submodules exist in the form of tasks. The task for receiving HyperTerminal is a resident task. The task for receiving Telnet input is created when a Telnet client is connected and deleted when the client is disconnected.

2. Command processing module: judge the legitimacy and validity of the received command, and if the command is valid, send the command to the security management module

3. Security management module: This module is divided into user management and authority verification modules according to the time when users execute commands.

The user management module includes the authentication of user identity (including the establishment and deletion of the validator user of the user logo and the validity of the user order. This module is called when the user logs in to the system for the first time. The authority verification module is used for command execution after the user logs in successfully. Permission verification, certain types of users only have the permission to execute specific commands, and only commands that pass the permission verification can be executed.

4. Conversion module from management character command to datagram command: After the management command passing the security verification arrives at this module, it first checks the validity of the message, and then converts it into a message in digital stream format, and sends the command to the The AGENT application program is distributed by the AGENT application program to the corresponding network element for execution.

5. Datagram command to character command conversion module: After the command distributed by the AGENT application program to the specified network element is executed, the specified network element reports the execution result of the command to the AGENT application program, and the AGENT application program reports the execution result through the message queue to this module. This module is responsible for converting the datagram command message into a string message of the network element management layer, and then sending it to the output module.

6. Output processing module: this module is responsible for sending the string message of the network element management layer to the hyper terminal or 6) Telnet client, and displays the execution information to the user. This module contains two sub-modules, one for outputting information to HyperTerminal and one for outputting information to Telnet client.

Claims (3)

1, a kind of method of utilizing the terminal management transmission network is characterized in that, described method is embedded in the transmission network element by the NE management layer function with transmission network management, carries out the management of transmission network by hyper terminal or Telnet then, may further comprise the steps:

At first, with traditional NE management layer and the order between the Network Element Layer, promptly have the datagram of certain agreement, be defined as character order with certain format according to practical application;

Secondly, the input module and the output module that is used for the execution result of administration order character string is printed to terminal of module that access function can be provided and the administration order character string of being responsible for receiving terminal are set in NE management layer; Can carry out network management by hyper terminal or telnet access network element to satisfy the user:

The 3rd, in NE management layer, be provided with and can be the datagram order with the management character command conversion of NE management layer and be the module of the management character order of NE management layer the datagram command conversion; Simultaneously, for making before the management character command conversion with NE management layer is the datagram order, from legalizing of the character string command of terminal input, assurance can be issued to the AGENT program by the correct datagram order that converts to of command conversion module from the character order of terminal input, is provided with command processing module; And, also be provided with safety management module, to carry out the checking of user identity and user right for guaranteeing to have only legal users and order to carry out with authority;

The 4th, for making in each network element information, as the physical connection between topology of networks, network element, by self-defining administration order or use the GUI webmaster that these information datas are stored in the network element relevant for all network elements;

The 5th, for solving the problem of the level that belongs to different on NE management layer and the AGENT programmed logic, to provide two communication modes between level, the message queue between the employing multitask.

2, the method for utilizing the terminal management transmission network according to claim 1, it is characterized in that, being defined as having traditional NE management layer of certain format and the character order between the Network Element Layer, can be configuration management order, alarm management order, performance management order, safety management order, maintenance management order.

3, the method for utilizing the terminal management transmission network according to claim 1, it is characterized in that, when the user carries out network management by the hyper terminal access network element, use the driving of serial communication, when the user carries out network management by the Telnet access network element, then be provided with and receive the Telnet server that client connects.