CN100438521C - Information management method in data communication equipment - Google Patents

Abstract

The present invention discloses a management method for configuration information in data communication equipment. The method designs a section for configuration information of each kind, according to the sections, section vector array structures used for storing and managing configuration data are arranged on a master control board. In this way, when the equipment is started, firstly, sections are created; then, the decompiling function (BuildRun) of each of configuration processing modules of the equipment is registered to the corresponding section of each of the section vector array structures; thirdly, according to configuration files stored by the equipment, configurations re restored to different sections. When the equipment runs, by invoking registered BuildRun functions in real time, the configuration information of the master control board is obtained, and the configuration information on an interface board is updated in real time and is stored in the corresponding section of the data structure S. The adoption of the scheme can flexibly and effectively organize various pieces of odd configuration information of the equipment, which solves the management problem of configuration information in a distributed environment.

Description

Method for managing configuration information in data communication equipment

technical field

The invention relates to an information management method of data communication equipment, in particular to a management method of equipment configuration information.

Background technique

In a data communication device, configuring the device is the basis for ensuring reliable operation of the device. The configuration is a collection of device operations performed by the user, and managing the above configuration information is a basic requirement for the user to manage the device. For example, in order to avoid complex and cumbersome repeated operations, the information that has been configured by the user usually needs to be saved; and all effective configurations that have been made can be displayed conveniently; All configuration information can be restored automatically, that is, hot swap is supported; and so on.

This series of problems involves each module that provides user configuration information in the entire device, that is, the configuration processing module. Therefore, it is necessary to provide a simple, general, and efficient method that can effectively integrate various scattered configuration information of each module in the device. Manage and use together, and consider the utilization of memory, the recovery of configuration information when the system starts, and the processing of hot swap, especially for distributed environments (such as environments including main control boards and multiple interface boards) ) under the management of configuration information.

The existing configuration information management method is realized by maintaining the decompilation function (BuildRun) chain of each configuration processing module. The function of the BuildRun function is to decompile the current configuration into a configuration command, that is, the specific configuration information that the user has completed. . Through the BuildRun function, whether it needs to display or save configuration information, it must be collected from each configuration processing module. After each module decompiles the configuration information, it is integrated into a continuous string and used together. When the system starts, Read saved configuration information, analyze and execute. The biggest disadvantage of the above method is that it does not provide support for distributed environments, and the management efficiency of configuration information is low. The performance is as follows: First, it takes a long time to collect information on the interface board. It will waste system resources, and the long collection time will make the user unbearable; second, the method of reading the saved configuration information only when the device starts does not support hot swapping, and the information on the interface board cannot be used during hot swapping. Save and restore; the third is that the integration of a large amount of configuration information will take up a large memory space.

Contents of the invention

The purpose of the present invention is to provide a method for managing configuration information in data communication equipment with high efficiency and strong management capability. The method can support the management of configuration information in a distributed environment, and support the recovery of configuration information and hot swap when the device is started. processing.

In order to achieve the above purpose, the method for managing configuration information in data communication equipment provided by the present invention includes:

Step 1: Divide the types of device configuration information, each type of configuration corresponds to a Section, and set a Section vector array structure for storing and managing configuration data on the main control board according to the Section;

Step 2: When the device starts, create a Section first, then register the decompilation function BuildRun of each configuration processing module of the device under the corresponding Section of the above Section vector array structure, and restore the configuration to different Sections according to the configuration file saved by the device Down;

Step 3: When the device is running, the configuration information of the main control board is obtained by calling the registered BuildRun function in real time, and the configuration information on the interface board is updated in real time and saved in the corresponding Section of the above Section vector array structure.

The Section vector array structure includes a Section type vector table and sections formed by each Section type, and inside the section, each Section is connected into a linked list; the Section includes:

Name, used to specify the name of the Section;

The available identifier is used to indicate whether the physical interface corresponding to the Section exists;

BuildRun information, used to maintain the BuildRun function on the main control board or the configuration information on the interface board.

According to the management method of configuration information in the data communication device, it also includes the step of collecting configuration information of the device interface, including: checking whether each Section in the data structure is available, and if the interface corresponding to the Section does not exist, ignore this Section, if it exists physically, check whether the BuildRun information is attached under this Section, if so, it will be displayed directly, otherwise it will continue to check whether such a Section has registered the BuildRun function, if the function is not empty, call the BuildRun function to obtain the configuration information.

The step 2 uses the following steps to configure the file to restore the configuration to different Sections:

Step 21: Execute the switch interface mode command in the configuration file to create an interface normally. When creating an interface, first judge whether the physical interface specified by the command exists. Interface-related sub-interfaces and dynamic interfaces all have the same unavailable attribute; if the interface exists and is successfully created, it is marked as available;

Step 22: Execute the configuration command in the interface mode in the configuration file, and save the obtained configuration information to the Section of the corresponding interface.

When the step 22 executes the configuration command under the interface mode in the configuration file, it will first judge whether the current interface actually exists physically. If it exists, the command is executed normally and waits for a response; otherwise, the current configuration command is directly saved to the Section vector In the Section corresponding to the current interface in the array structure.

If the interface board is available, set the available flag of the interface section corresponding to the interface board to available; if the interface board is unavailable, set the available flag of the interface section corresponding to the interface board to unavailable.

When the device is inserted into the standby board of the main control board, the current configuration information is collected and sent to the standby board, and the recovery process of the startup configuration is performed on the standby board; during real-time backup, the configuration commands entered by the user are simultaneously displayed on the main board and the standby board Execute; when the main control board receives the update information from the interface board, it will update the information to the standby board at the same time.

Since the above solution can unify the storage and restoration of configuration information through Section, the above solution can be used to manage the configuration information of digital communication equipment, and various scattered configuration information of the equipment can be organized flexibly and effectively. Restore configuration information in real-time and handle configuration information management when hot plugging, which better solves the problem of distributed environment supporting configuration saving, configuration recovery, and configuration information recovery when the interface board is plugged in after being powered on. Therefore, the above scheme has high The management efficiency and function of the configuration information.

Description of drawings

Fig. 1 is a structural diagram of the main modules of the equipment applying the method of the present invention;

Fig. 2 is an example diagram of the data structure adopted by the present invention.

Detailed ways

In order to effectively manage the configuration operation information of digital communication equipment, the present invention first divides the types of equipment configuration information. The present invention divides various configurations of digital communication equipment into two categories: global configuration and interface configuration, and the global configuration may be a prerequisite for each interface configuration, and may also depend on the configuration of each interface, so the global configuration can be further detailed Divided into pre-global and post-global configurations. Since digital communication devices are usually implemented using multiple protocols, according to the adopted protocols, the above two types of configuration information actually include a variety of different configuration information. of.

The present invention will be described in further detail below in conjunction with accompanying drawing

Fig. 1 is a structural diagram of the main modules of the device applying the method of the present invention. The user configures the datacom device through the command line or the network management method, and the command or network management setting entered by the user is interpreted and handed over to the corresponding configuration processing module for processing, and each configuration processing module completes relevant parameter settings and other operations; each configuration processing The module registers the Buildrun function with the configuration file management module, and cooperates with the configuration file management module to complete configuration information collection, display, recovery and other functions.

According to the configuration information of the module management device shown in Figure 1, the method adopted by the present invention is to design a Section corresponding to each configuration, that is, each configuration corresponds to a Section type, and set it on the main control board according to the Section for storage and management Configure the Section vector array structure of the data, that is, the Section vector structure (a section is a node in the structure). In the Section vector array structure, the management of Sections is organized by adding vectors and multi-segment one-way linked lists. Each Section type is placed in the vector in sequence, and Sections belonging to the same type form a section. Inside the section, each Section is linked into a linked list in alphabetical order of names, as shown in Figure 2. The data structure S includes a Section type vector table and a section composed of each Section type, and within the section, each Section is connected into a linked list; the Section includes:

Name, used to specify the name of the Section;

The available identifier is used to indicate whether the physical interface corresponding to the Section exists;

BuildRun information, for the interface on the main control board, maintain the BuildRun function of the main control board, and for the interface on the interface board, maintain the configuration information.

The Section types shown in Figure 2 are Congfig, Controller E1, Serial, Ethernet, ... Ospf, Route, and the Section type vector table stores vectors pointing to the above Section types, and Figure 2 shows the Serial in the vector table The section composed of the Serial type pointed to by the type pointer, in the linked list header of this section, the Section type is called "Serial", the decompiled function vector is a pointer to the specific decompiled function table of the Serial type, and the Section linked list is Pointer to the specific Section node of the Serial type. In Figure 2, there are three specific Section nodes named Serial10, Serial10.1, and Serial1. In each Section node, the BuildRun information is a pointer to the maintained configuration information .

The management of configuration information based on the above data structure S in the present invention is embodied in multiple aspects. In terms of BuildRun information management, the Section type records the BuildRun decompilation functions registered by each configuration processing module, and the order of each decompilation function, as shown in Figure 2. The decompilation of the Physical module pointed to by the decompilation function vector of the Serial section Function, IP module decompilation function, FR module decompilation function and PPP module decompilation function, and thus determine the organization of Section node BuildRun information. In order to ensure the automatic configuration recovery of the interface board after hot swapping, all BuildRun information related to the interface board needs to be dynamically saved and updated on the main control board. If the configuration data of the interface board is backed up on the main control board, the update work The backup module can be responsible, otherwise the interface board can only report actively. At the same time, it is stipulated that for all Section types related to the interface board, the BuildRun function pointers are all empty. Taking Figure 2 as an example, it means that the decompiled function vector of the Serial section is empty.

The registration order of the Section type determines the order of the configuration information in the configuration file. In this example, the registration of the Section type and the BuildRun function are all statically initialized during the startup process of the configuration file management module. Among them, the pre-global section and the post-global section are automatically created by the configuration file management module during the initialization process, and all other sections belong to the interface class, and they are dynamically added and deleted under the control of the digital communication device interface management module.

Regarding the restoration of configuration information when the device is started, when the device is restarted, the configuration information can be restored according to the saved configuration file. Since some configurations depend on the interface, it must be ensured that the interface is created first, so the process of restoring configuration information is divided into two stages:

The first phase is the interface recovery phase. The configuration file is read from the storage device of the device, and the configuration file is a file automatically generated by the device to record user configuration operations. Submit and execute each command in the configuration file in order. If it is a command to switch the interface mode, the interface will be created normally, and any other commands will be ignored. When creating an interface, first determine whether the specified physical interface exists. If it does not exist, create it, but mark it as unavailable (only allowed in the device startup phase), and specify all sub-interfaces related to this physical interface, Dynamic interfaces all have the same unavailable property; if the interface exists and is successfully created, it is identified as available. In this way, after the configuration file is pre-executed, all interfaces and corresponding interface sections are established.

In the second stage, the configuration file is read again and each command in the configuration file is submitted from scratch. This time is to actually execute each configuration command to restore the configuration information. But special handling must be done for the following cases:

1. The execution of post global configuration commands needs to be supported by the exception handling process of each protocol module. For example, the forwarding interface name will be used in static routing configuration. If the interface board attached to these interfaces does not exist, the routing module that performs static routing configuration at this time must still allow its configuration to succeed (this is only allowed in the device startup phase). And set the unavailable flag for this part of the route. Before the interface board is registered, all the routes related to this interface board are not allowed to be displayed and modified. Once the interface board is registered, it will be automatically marked as valid.

2. If it is a configuration command in interface mode, it will first judge whether the current interface operated by the command exists physically. If it exists, the command will be executed normally and wait for a response. Otherwise, the current command line command, that is, the configuration information is directly mounted or saved by the configuration processing module of the device to the Section of the current interface, and the command execution success is returned. After the configuration file is executed for the second time, all configuration commands related to unavailable interfaces are collected under each interface Section.

After the second stage is completed, the system startup process ends, and the recovery of configuration information is completed at the same time.

In terms of configuration information collection and display, if the user needs to display or save the current configuration, then view each Section type of the data structure S in order, and traverse from the head of each Section singly linked list, first check whether the Section is available (by using the available identification ), if the interface corresponding to this interface Section does not exist physically, ignore this Section and continue to the next node. If it exists physically, check whether the BuildRun information is attached under this Section, if so, display or save it directly, otherwise, continue to check whether such Section has registered the BuildRun function, if the function is not empty, call the BuildRun function to obtain the configuration information.

All the configuration information displayed and saved above is the current configuration that actually works. If a configuration operation is performed on an interface board and then it is unplugged, this part of the configuration information will not be displayed and saved, but it can still be used. It is used to restore the configuration after the interface board is reinserted.

In terms of hot-swapping support, under the control of the interface management module of the device, if the interface board is available, the available identification of the Section of the corresponding interface is set to be available; if the interface board is pulled out, it is set to be unavailable; and Set the usable flag of the section corresponding to the interface of the newly inserted board to be available. It can be seen that this makes available configuration information and unavailable configuration information clearly distinguished by an available identifier. In this way, when the interface board is unplugged, the BuildRun information of the interface board is still saved on the main control board; when it is plugged in again, the configuration file is notified by the interface management module, traverses the corresponding BuildRun information, and restores the configuration.

In the present invention, the BuildRun information on the interface board and the main control board are treated differently: the configuration information on the main control board is obtained by invoking the registered BuildRun function in real time, while the configuration information on the interface board is updated and updated in real time. Stored in the storage unit pointed to by the corresponding BuildRun function pointer. In this way, the drawback of collecting configuration information from the interface board for a long time is avoided, and at the same time, the configuration information is not lost after the interface board is removed, and it provides a basis for configuration restoration during hot plugging.

In terms of hot backup, when the standby board is inserted into the device, the current configuration information can be collected and sent to the standby board, and the recovery process is the same as that configured when the device starts; in the real-time backup process, use The configuration commands entered by the user are executed on the main board and the standby board at the same time.

For updating the configuration information on the interface board on the standby board of the interface board, when the main control board receives the update information from the interface board, it can update the configuration information to the standby board at the same time.

Claims (8)

1, the management method of configuration information in a kind of data communications equipment comprises:

Step 1: divide the kind of device configuration information, the corresponding section Section of the configuration of each kind is provided for storing the vectorial structure of arrays with the Section of administration configuration data according to described Section on master control borad;

Step 2: during device start, create Section earlier, decompiling function BuildRun with each configuration process module of equipment is registered under the corresponding Section of above-mentioned Section vector structure of arrays again, and the configuration file of preserving according to equipment with configuration restore under different Section;

Step 3: during equipment operation, the BuildRun function of having registered by real-time calling obtains the configuration information of master control borad, and the configuration information real-time update on the interface board also is kept under the corresponding Section of above-mentioned Section vector structure of arrays.

2, the management method of configuration information according to claim 1 is characterized in that: described Section vector structure of arrays comprises the section that Section type vector table and each Section type are formed, and at intersegmental part, each Section is linked to be chained list; Described Section comprises:

Title is used to indicate the title of Section;

Available sign is used to indicate whether the pairing physical interface of Section exists;

BuildRun information is used to safeguard the BuildRun function of master control borad or the configuration information on the interface board.

3, the management method of configuration information according to claim 2, it is characterized in that also comprising the step of the configuration information of collecting device interface, comprise: check whether each Section in the data structure is available, if the pairing interface of this Section does not exist, then ignore this Section, if physically exist, then check and whether articulated BuildRun information under this Section, if have then directly demonstration, otherwise will continue to check whether this type of Section has registered the BuildRun function, if function is not empty, then calls the BuildRun function and obtain configuration information.

4, the management method of configuration information according to claim 2 is characterized in that, step 2 adopt following arrangements of steps file with configuration restore in different Section:

Step 21: the switching interface mode command of carrying out in the configuration file is normally created interface, when creating interface, whether the physical interface of at first judging the order appointment exists, if there is no then create it, it is unavailable but identify, and stipulates that all sub-interface, dynamic sockets that physical interface is relevant therewith all have identical unavailable attribute; Create successfully if interface exists also, identify then that it is available;

Step 22: carry out the configuration order under the interface modes in the configuration file, the configuration information that obtains is saved under the Section of the corresponding interface.

5, the management method of configuration information according to claim 4, it is characterized in that: when described step 22 is carried out the following configuration order of interface modes in the configuration file, at first can judge when front port necessary being whether physically, if existence, then order is normal carries out, and wait acknowledge; Otherwise directly current configuration order is saved in the Section vector structure of arrays corresponding in the Section of front port.

6, according to the management method of claim 2,3,4 or 5 described configuration informations, it is characterized in that: if interface board can be used, then the available sign of the interface Section of this interface board correspondence is set to available; If interface board is unavailable, then the available sign of the interface Section of this interface board correspondence is set to unavailable.

7, the management method of configuration information according to claim 6 is characterized in that: when equipment inserts the slave board of master control borad, collect present configuration information and send to slave board, the recovery process of configuration when starting on slave board; When backing up in realtime, the configuration order that the user is imported is carried out at mainboard and slave board simultaneously; When master control borad is received the lastest imformation of interface board, simultaneously to the slave board lastest imformation.

8, according to the management method of claim 2,3,4 or 5 described configuration informations, it is characterized in that: configuration information real-time update on the described interface board of step 3 and preservation are by the interface management module controls of equipment.

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