CN100395986C - Network management system and network management method - Google Patents

Abstract

The invention relates to the communication field, and discloses a network management system and a network management method, which enable the unified management of internal integrated equipment to be simply realized. The invention realizes the unified network management of the internal integrated equipment by the communication system through the proxy mode; and identifies whether the network management command is a command forwarded to the internal integrated equipment through the prefix, port, suffix, etc. of the network management command.

Description

Network management system and network management method

technical field

The invention relates to the communication field, in particular to the network management technology in the communication system including integrated equipment.

Background technique

The goal of communication system network management is to maximize the use of communication system network resources, improve the operation quality and efficiency of communication system network, and provide users with good communication services.

The network management system is a complex system, involving various fields such as communication technology and computer technology. Currently, there are many technologies for network management, and new network management technologies are constantly emerging. Commonly used network management technologies include: based on Telecom Manage Network ("TMN" for short) network management technology for telecommunications networks, based on Common Object Request Broker Architecture ("CORBA") for network management system interconnection Network management technology based on Simple Network Management Protocol (Simple Network Management Protocol, referred to as "SNMP") for data networks and computer networks, network management technology based on the World Wide Web (abbreviated as "Web"), and so on.

In practical applications, we will encounter some situations, such as a communication system integrating a switching platform product and interface products, and these products can already be managed as independent products, but because they are integrated in the communication system, a unified network management interface needs to be considered.

In order to solve this problem, a commonly used method at present is to develop an internal interface, so that the management style of the integrated device is completely consistent with that of the main communication device. The second method commonly used at present is to independently manage the integrated equipment.

In practical application, the above solution has the following problems: the disadvantage of the first method is that the workload is heavy; the disadvantage of the second method is that it does not meet the requirements of unified network management.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a network management system and a network management method, so that unified management of internal integrated devices can be easily realized in the communication system.

To achieve the above object, the present invention provides a network management system, including a main communication device, an integrated device, and a network management device, wherein the integrated device supports the first communication protocol,

The network management device is used to send network management commands with a prefix, port or suffix, and to receive reply information forwarded by the main communication device;

The main communication device also includes a first agent module, which is used to convert the format of the network management command after determining that the command is sent to the integrated device according to the prefix, port or suffix in the network management command sent by the network management device, and use The first communication protocol forwards the network management command to the integrated device; and forwards the reply information returned by the integrated device to the network management device.

In addition, the first communication protocol is Telnet protocol or SNMP protocol.

The first proxy module is also used to send the network management command to the corresponding corresponding port of the main communication device after determining that the command is not sent to the integrated device according to the prefix, port, or suffix in the network management command. module to process.

The present invention also provides a network management method. The network management device manages the integrated device through the proxy function of the main communication device, and the method includes the following steps:

A When the main communication device receives a network management command with a prefix, port or suffix from the network management device, it judges whether the command is sent to the integrated device according to the prefix, port or suffix in the network management command, If yes, perform format conversion on the network management command and forward it to the integrated device;

B. When the master communication device receives the reply information from the integrated device, it converts the format of the reply information and reports it to the network management device.

In said step A,

When the master communication device determines that the network management command is not sent to the integrated device, it sends the network management command to a corresponding module of the master communication device for processing.

In said step A,

The format conversion includes the step of stripping off the prefix or suffix of the network management command.

The master communication device forwards the network management command to the integrated device by using the Telnet protocol or the SNMP protocol.

Through comparison, it can be found that the difference between the technical solution of the present invention and the prior art is that the present invention realizes the unified network management of the internal integrated equipment by the communication system through the proxy mode; Identify whether the network management command is a command forwarded to the internal integration device.

The difference in this technical solution has brought obvious beneficial effects. First, it enables the communication system to perform simple network management on the internal integrated equipment; second, the workload is small; in addition, the scalability is good, and the characteristics of the integrated equipment can be Expand independently.

Description of drawings

Fig. 1 is a schematic diagram of remote login proxy service;

Fig. 2 is a flow chart of remote login proxy service;

Fig. 3 is a simple implementation frame diagram of the network management agent mode according to an embodiment of the present invention;

Fig. 4 is the processing flow diagram of parsing proxy command in the network management method according to an embodiment of the present invention;

Fig. 5 is a flow chart of processing of reporting maintenance information in a network management method according to an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

In general, the present invention provides a method for simply implementing the management of internal integrated devices through an agent, which is based on a remote login (abbreviated as "Telnet") agent. The following first introduces the concept of the Telnet proxy in combination with Figure 1 and Figure 2.

As shown in FIG. 1 , the remote login proxy service process can be simplified into three main devices: client 10 , Telnet proxy server 11 and remote server 12 . Telnet is a standard protocol and main method for remote login, which provides users with the ability to complete the work of remote hosts or information nodes on the local computer. By using Telnet, users can communicate with many remote hosts or information nodes on the network that support the Telnet function. Telnet is one of the easiest Internet tools to use.

Under normal circumstances, the client 10 logs in to the remote server 12 remotely, and only needs to initiate a Telnet command on the client 10 . On Unix systems, to establish a session to a remote server 12, simply enter the command at the system prompt:

Telnet remote server 12

The user will see the welcome message or login sign of the remote host or information node. In the Windows system, the user will use the Telnet client program with a graphical interface to establish a Telnet connection with the remote host.

In some cases, it is required that the client terminal 10 cannot be directly connected to the remote server 12. Those skilled in the art should know that this situation includes considerations based on security, authentication and accounting, or other purposes. consider. Therefore, the remote login between the client 10 and the remote server 12 needs to go through an agent, and this agent is realized by the Telnet agent server 11 in Fig. 1. It should be noted that this Telnet agent function can be realized by hardware or by Software Implementation.

The following describes how the client 10 in FIG. 1 realizes the remote login process with the remote server 12 through the Telnet proxy server 11 in conjunction with FIG. 2 .

The workflow of the remote login proxy is shown in Figure 2. First, in step 2000, the Telnet proxy server 11 in Figure 1 starts the remote login proxy service, and the process begins to run.

Next, in step 2100, the proxy process monitors the connection sent by the client 10 in FIG. 1. It should be noted that at this time, the client 10 enters the command at the system prompt:

Telnet remote server 12

So in fact this connection request is monitored and intercepted by the Telnet proxy server 11 in FIG. 1 , and is not sent to the remote server 12 immediately.

Then, in step 2200, after the connection request of the client 10 arrives at the Telnet proxy server 11, the Telnet proxy server 11 analyzes and processes the connection request of the intercepted client terminal 10, and the Telnet proxy server 11 according to the access control file stored on it, and the source and destination addresses of the connection to filter the connection. If it is a legal request, go to step 2300, otherwise go to step 2210.

In step 2210, since it is determined in step 2200 that the request is illegal, it is rejected and the connection request is terminated.

Subsequently, in step 2300, since the request is determined to be legal in step 2200, the Telnet proxy server 11 accepts the connection request of the client 10, and the Telnet proxy server 11 initiates a remote login request to the remote server 12.

Thereafter, in step 2400, Telnet proxy server 11 also needs to judge whether its connection to remote server 12 is successful, if successful, then enter step 2500, otherwise return to step 2300, and wait for a new Telnet proxy request to arrive.

Then, in step 2500, because the connection of Telnet proxy server 11 and remote server 12 is successful in step 2400, then the connection of client 10, Telnet proxy server 11, remote server 12 three parties is connected, and Telnet proxy server 11 just begins to forward client The command and feedback or other data between the terminal 10 and the remote server 12, and the Telnet proxy server 11 can record the data flowing through it at the same time, and write it into a log.

Finally, in step 2600, until one of the client 10 and the remote server 12 exits or times out, the Telnet proxy server 11 ends the remote login proxy service and closes the connection between the two parties.

The following describes the principles of the present invention, and explains in detail a simple solution for the management of internal integrated devices implemented by the communication system. And emphatically expounds the core content of the present invention: a simple network management design method to realize the management of the internal integrated equipment by means of an agent.

The implementation framework of this scheme is introduced below.

As shown in FIG. 3 , this framework is composed of a management device 30 and a communication system 31 , wherein the communication system 31 is composed of a master communication device 310 and an integrated device 320 .

The management device 30 refers to the operation and maintenance platform used by the user to manage the communication system 31 and various devices contained therein, and may be a workstation, a personal computer, or a notebook computer.

The communication system 31 represents network equipment that assumes certain functions in the communication network.

The main communication device 310 refers to the main body of the communication system integrating other devices. Since the integrated device 320 is generally an independent product that provides the Telnet function, the main communication device 310 only needs to implement the Telnet proxy function, and the management device can perform simple network management on all devices in the communication system 31 .

The integrated device 320 , that is, the integrated communication device inside the main communication device 310 refers to an independent communication device integrated by the main communication device 310 in the system. It should be noted that the integrated device 320 in FIG. 3 only draws a block diagram to represent it. In an actual communication system, multiple integrated devices may be integrated in the master communication device 310. Logically, the master communication device 310 and the slave The integrating device 320 is separated as shown in FIG. 3 , but in an actual system, the integrated device 320 may be inserted into the main communication device 310 or combined in the main communication device 310 in other ways. It should also be noted that there is a prerequisite in this solution, that is, the integrated device 320 must support the Telnet function, and most of the integrated devices 320 meet this requirement.

Next, in this solution, it is necessary to describe how the management device 30 realizes the input of management commands through the format of the command line, so as to ensure that the integrated device 32 can be managed according to the commands of the management device 30 . From the interface point of view, the simple proxy method of this solution is suitable for the command line interface. This solution can realize the input of management commands through three enhanced command design methods, namely prefix analysis method, special port method, and special suffix analysis method .

The interface of the prefix analysis method is introduced below. Those skilled in the art know that the interface refers to the input display screen of the management device 30 in FIG. 3 .

The codes of each part of the entire communication system 31 have been pre-defined, the main communication device 310 is code-named SGSN, and the integrated device 320 is code-named BNET.

On the keyboard of the management device 30, the following management command format can be entered:

(1) Command input format:

SGSNBNET [SAVE] telnet

This command means to initiate a remote login request from the management device 30 to the integrated device 320 through the Telnet proxy function of the main communication device 310. As can be seen from the format of this command, it is the same as the common Telnet command format mentioned in the previous background. different. It should be noted that SAVE is marked with brackets to indicate that it is an optional parameter.

(2) Command storage format

SGSNBNET SAVE config

This command means that the storage management device 30 configures the parameters of the integrated device 320 through the Telnet proxy function of the main communication device 310. It should be noted that this information can be stored on the main communication device 310, or it can be exist on other devices.

(3) Command output format

The command output format can be output according to the simplest solution, that is, to maintain the original format to display the string result returned by telnet; or to uniformly display the format through the format conversion module of the main communication device 310 . Those skilled in the art know that this is similar to the echo information obtained by ordinary remote login, and different echo information can be obtained according to different commands.

(4) Storage command display format

SGSNBNET show

This command means to display the various commands used by the management device 30 to operate the integrated device 320 through the Telnet proxy function of the master communication device 310 .

(5) Command delete format

SGSNBNET del all

This command means to delete all commands used by the management device 30 to operate the integrated device 320 through the Telnet proxy function of the master communication device 310 .

Similarly, the design of other command formats can refer to the five commonly used management commands mentioned above. These command formats embody the core idea of this solution, and realize simple network management of various internal integrated devices through agents.

The interface of the special suffix analysis method is introduced below. The difference from the prefix method is only through the suffix extraction.

The whole communication system 31 also has pre-defined codes for each part. The master communication device 310 is code-named SGSN, and the integrated device 320 is code-named BNET.

On the keyboard of the management device 30, the following management command format can be entered:

(1) Command input format:

telnet SGSNBNET [SAVE]

The meaning of this command is also to initiate a remote login request from the management device 30 to the integrated device 320 through the Telnet proxy function of the main communication device 310. As can be seen from the format of this command, it is the same as the common Telnet command mentioned in the previous background. The format is also different. It should be noted that SAVE is marked with brackets to indicate that it is an optional parameter.

(2) Command storage format

config SGSNBNET SAVE

The meaning of this command is also the parameters after the storage management device 30 configures the integrated device 320 through the Telnet proxy function of the main communication device 310. It should be noted that this information can be stored on the main communication device 310, or it can be exist on other devices.

(3) Command output format

The command output format can also be output according to the simplest solution, that is, to maintain the original format to display the string result returned by telnet; or to uniformly display the format through the format conversion module of the main communication device 310 . Same as prefix analysis interface.

(4) Storage command display format

show SGSNBNET

The meaning of this command is also to display various commands used by the management device 30 to operate the integrated device 320 through the Telnet proxy function of the master communication device 310 .

(5) Command delete format

del all SGSNBNET

This command also means to delete all the commands used by the management device 30 to operate the integrated device 320 through the Telnet proxy function of the master communication device 310 .

Similarly, the format design of other special suffix commands can refer to the five commonly used management commands mentioned above. These command formats also reflect the core idea of this solution, and realize simple network management of various internal integrated devices through agents.

The interface of the special port analysis method is introduced below, which is suitable for identifying whether to send to the integrated device 320 according to different ports.

The port of each part of the whole communication system 31 is also pre-defined. The port number of the master communication device 310 is defined as 65310, and the code name of the integrated device 320 is 65320. It should be noted that the ports do not use well-known port numbers that have been customarily defined. Well-known ports are well-known port numbers ranging from 0 to 1023. These port numbers are generally assigned to some services. For example, port 21 is assigned to the file transfer protocol ( File Trasfer Protocol, referred to as "FTP") service, port 25 is assigned to Simple Mail Transfer Protocol (Simple Mail Transfer Protocol, referred to as "SMTP") service, port 80 is assigned to HyperText Transport Protocol (HyperText Transport Protocol, referred to as "HTTP") services and the like.

On the keyboard of the management device 30, the following management command format can be entered:

(1) Command input format:

telnet 65310 65320 [SAVE]

The same implementation of this command is to initiate a remote login request from the management device 30 to the integrated device 320 through the Telnet proxy function of the master communication device 310. It should be noted that SAVE is marked with brackets to indicate that it is an optional parameter.

(2) Command storage format

config 65310 65320 SAVE

The meaning of this command is also the parameters after the storage management device 30 configures the integrated device 320 through the Telnet proxy function of the main communication device 310. It should be noted that this information can be stored on the main communication device 310, or it can be exist on other devices.

(3) Command output format

The command output format can also be output according to the simplest solution, that is, to maintain the original format to display the string result returned by telnet; or to uniformly display the format through the format conversion module of the main communication device 310 . Same as prefix analysis interface.

(4) Storage command display format

show 65310 65320

The meaning of this command is also to display various commands used by the management device 30 to operate the integrated device 320 through the Telnet proxy function of the master communication device 310 .

(5) Command delete format

del all 65310 65320

This command also means to delete all the commands used by the management device 30 to operate the integrated device 320 through the Telnet proxy function of the master communication device 310 .

Similarly, the design of other special port command formats can refer to the five commonly used management commands mentioned above. These command formats also reflect the core idea of this solution, and realize simple network management of various internal integrated devices through agents.

The various analysis methods mentioned above are all implementation forms of a specific command format of this solution. In this solution, the operation and maintenance module of the main communication device 310 needs to be slightly modified to support the Telnet proxy function. But for the overall management and maintenance, it is a solution with the least workload and good scalability. Through the framework design, all the maintenance and management functions of the original integrated equipment can be drawn out.

The following describes in detail the processing flow of the master communication device 310 parsing the proxy command and reporting the maintenance information after the operation and maintenance module of the master communication device 310 is modified.

The flow chart of parsing proxy commands is as follows:

As shown in FIG. 4, first, in step 4000, for the main communication device 310 in FIG. 3, analyze the command sent by the management device 30, and use the prefix analysis method, or suffix analysis method, or port analysis method to analyze the command format, To distinguish it from ordinary remote login commands.

Next, in step 4100, the modified Telnet agent process of the master communication device 310 determines whether the command is sent to the integrated device 320 according to the information obtained by analyzing the command through the prefix analysis method, or suffix analysis method, or port analysis method. If yes, go to step 4200, otherwise go to step 4110. The method of judging whether to send to the integrated device can be combined with the command design, and the prefix analysis method can be used, as described in the previous interface example; the special port method is suitable for identifying whether to send to the integrated device according to different ports; The difference between the special suffix method and the prefix method is only through suffix extraction; and other methods that can be easily identified.

In step 4110, since it is judged in step 4100 that the command is not sent to the integrated device 320, it goes to other processing.

Then, in step 4200, since the command sent to the integrated device 320 in step 4100, the master communication device 310 strips off the prefix, suffix or port number in the command sent by the management device 30, and becomes an ordinary remote login command Format.

Thereafter, in step 4300, the master communication device 310 initiates a connection with the integrated device 320, and establishes a communication channel between the two.

Next, in step 4400, since the management device 30 has been successfully connected to the main communication device 310 in step 4000, and in step 4300, the main communication device 310 has also been successfully connected to the integrated device 320, then the management device 30, the main communication device 310 , the three-party connection of the integrated device 320 is established, and the Telnet agent on the master communication device 310 starts to forward the commands between the management device 30 and the integrated device 320 .

Finally, in step 4500, the command issued by the management device 30 is proxied by the master communication device 310 and then reaches the integrated device 320 for processing by the integrated device.

The flow chart of reporting maintenance information is as follows:

As shown in Fig. 5, first, in step 5000, the integrated device processes the remote login command, and then transmits various information to the master communication device according to the command requirements.

Next, enter step 5100, in the master communication device, perform format conversion on the information reported by the integrated device, and display the format uniformly.

Finally, enter step 5200, the main communication device reports the converted information to the network management center or the local maintenance terminal.

The combination of the above two processes describes in detail how the master communication device agent realizes the network management of the internal integrated device.

Those skilled in the art can understand that, in addition to supporting the Telnet protocol, if the main communication device and the integrated device in the present invention support the Simple Network Management Protocol (Simple Network Management Protocol, referred to as "SNMP"), they can also implement the information disclosed in the present invention. principle.

Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein, and without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. a network management system comprises Master Communication Equipment, is integrated equipment and Network Management Equipment, and wherein, the described equipment that is integrated is supported first communication protocol, it is characterized in that,

Network Management Equipment is used to send the webmaster order with prefix, port or suffix, and receives the return information that Master Communication Equipment is transmitted;

Described Master Communication Equipment also comprises first proxy module, be used for after prefix, port or the suffix of the webmaster order that sends according to Network Management Equipment determine that the equipment of being integrated is mail in this order, format conversion is carried out in described webmaster order, and use described first communication protocol that described webmaster order is transmitted to the described equipment that is integrated; And be integrated the return information that equipment returns and be transmitted to described Network Management Equipment described.

2. network management system according to claim 1 is characterized in that, described first communication protocol is Telnet or Simple Network Management Protocol.

3. network management system according to claim 1 is characterized in that,

Described first proxy module also is used for according to the prefix of described webmaster order or port or suffix, determine this order be not mail to described be integrated equipment after, the corresponding module that this webmaster order sends to described Master Communication Equipment is handled.

4. a network management method is characterized in that, Network Management Equipment manages being integrated equipment by the agent functionality of Master Communication Equipment, and described method comprises following steps:

A when described Master Communication Equipment receive from described Network Management Equipment have the webmaster order of prefix, port or suffix the time, judge according to prefix, port or suffix in the described webmaster order whether this order mails to the described equipment that is integrated, if, then format conversion is carried out in described webmaster order, and be forwarded to the described equipment that is integrated;

When B receives from the described return information that is integrated equipment when described Master Communication Equipment, described return information is carried out format conversion, and report to described Network Management Equipment.

5. network management method according to claim 4 is characterized in that, in the described steps A,

Judging described webmaster order when described Master Communication Equipment is not to mail to describedly when being integrated equipment, and the corresponding module that this webmaster order sends to described Master Communication Equipment is handled.

6. network management method according to claim 4 is characterized in that, in the described steps A,

Described format conversion comprises the prefix of peeling off described webmaster order or the step of suffix.

7. network management method according to claim 4 is characterized in that, described Master Communication Equipment uses Telnet or Simple Network Management Protocol that described webmaster order is transmitted to the equipment of being integrated.

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