CN101616022A - A kind of intelligent device management method and system based on snmp protocol - Google Patents
A kind of intelligent device management method and system based on snmp protocol Download PDFInfo
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Abstract
The invention discloses a kind of intelligent device management method and system based on snmp protocol, described method comprises following steps: A. smart machine adapter is in initialization procedure, according to the dynamic formation object identification information of intelligent device management information database table; B. webmaster is according to described object id information table, finishes management to smart machine by described smart machine adapter.Described system comprises webmaster and smart machine adapter, and described smart machine adapter is used for according to the dynamic formation object identification information of the management information base of smart machine table; Described webmaster is used for according to described object id information table, finishes management to smart machine by described smart machine adapter.The present invention has significantly improved smart machine exploitation and allocative efficiency.
Description
Technical field
The present invention relates to network management, relate in particular to a kind of intelligent device management method and system based on SNMP (Simple NetworkManagement Protocol, Simple Network Management Protocol) agreement.
Background technology
Along with developing rapidly of networking, in the product and conceptual design in modern times, increasing product needed is linked into Ethernet by the snmp protocol of standard.Dynamically inserting by the SNMP standard agreement about how is multiplely become a common problem by the management smart machine.
At present according to the standard snmp protocol with smart machine, for example: UPS (uninterrupted power supply), air-conditioning, power supply, oily machine, power distribution cabinet and collector etc., be connected to Ethernet, make that smart machine can be by SNMP webmaster (network management system, NMS) exploitation that manages, generally be to use the mib2c script to generate the .C file according to the management information base (MIB) of smart machine, this document definition OID (object identity) bivariate table of a static state, an object in each row corresponding MIB storehouse of table.Take out the call back function address according to the OID that is asked in the table and call when receiving SNMP when request.Because what comprise in the .C file that mib2c generates is static table, so when increase equipment or minimizing renewal of the equipment MIB storehouse, just need regenerate the .C file with the updating form structure, if the bottom need increase the access of smart machine or will revise certain bars of a certain smart machine, all to make amendment and recompilate program, not only increased the repeatability of exploitation, and be unfavorable for safeguarding.
Summary of the invention
In view of problems of the prior art, the present invention proposes a kind of intelligent device management method and system of snmp protocol, can adjust the access of smart machine flexibly and easily.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of intelligent device management method based on snmp protocol comprises following steps:
A, smart machine adapter are in initialization procedure, according to the dynamic formation object identification information of intelligent device management information database table;
B, webmaster be according to described object id information table, finishes management to smart machine by described smart machine adapter.
Describedly comprise the steps: according to the dynamic formation object identification information of intelligent device management information database table
A11, generate the intelligent device management information database according to smart machine so storehouse;
A12, dynamically resolve described intelligent device management information database, obtain object identity;
A13, set up the dynamic mapping relationship of object identity and acquisition channel number, the formation object identification information.
Described initialization procedure also comprises the steps: after formation object identification information table
A21, call and resolve described object id information table;
A22, registration intelligent device management management of information database object information;
A23, initialization TRAP transmit queue;
A24, startup SNMP intercept task.
Described step B comprises the steps:
B1, smart machine adapter detect and receive the request message of described webmaster, after the empirical tests success, take out the protocol Data Unit in the request message;
B2, smart machine adapter identification protocol data cell type are called corresponding call back function;
B3, smart machine adapter call data exchange interface to the smart machine image data;
B4, smart machine adapter are analyzed mapping according to described object id information table to image data, the data formation response message according to call back function and after analyzing mapping;
B5, webmaster finish management to smart machine according to described response message.
The checking of described step B1 comprises:
B11, decode,, take out the version number in the request message as success according to ASN.1 encoding and decoding rule, otherwise dropping packets;
Whether B12, checking version number be consistent with the snmp protocol version that the smart machine adapter is supported, as unanimity, takes out the group's name in the request message, otherwise dropping packets;
Whether B13, checking group name be consistent with group's name of smart machine adapter approval, as unanimity, be proved to be successful, otherwise dropping packets.
Described intelligent device management method, webmaster also comprises the alarm process to the management of smart machine:
C1, smart machine adapter form warning information according to predefined alarm list structure, and the list structure attribute of described warning information comprises alarm number, alarm time, alarm grade, alarm description and alarm type;
C2, smart machine adapter call alarm sending function, and described warning information is sent to webmaster.
The invention also discloses a kind of intelligent device management system based on snmp protocol, described system comprises webmaster and smart machine adapter, and described smart machine adapter is used for according to the dynamic formation object identification information of the management information base of smart machine table; Described webmaster is used for according to described object id information table, finishes management to smart machine by described smart machine adapter.
Described smart machine comprises the smart machine of serial interface and the smart machine of network interface interface.
The present invention utilizes the smart machine adapter according to the dynamic formation object identification information of the management information base of smart machine table, thereby realized the dynamic access of smart machine, smart machine be can increase or reduce flexibly and easily, thereby smart machine exploitation and allocative efficiency significantly improved.
Description of drawings
Fig. 1 is the network topological diagram of the management system of the specific embodiment of the invention;
Fig. 2 is the concrete structure schematic diagram of the management system of the specific embodiment of the invention;
Fig. 3 is the overview flow chart of the management method of the specific embodiment of the invention;
Fig. 4 is the initialization flowchart of the management method of the specific embodiment of the invention;
Fig. 5 is the OID information table product process figure of the management method of the specific embodiment of the invention;
Fig. 6 is the alarm processing schematic diagram of the management method of the specific embodiment of the invention.
Embodiment
Contrast accompanying drawing and the present invention is further elaborated below in conjunction with embodiment.
The present invention can will be connected to Ethernet by the smart machine adapter such as polytype smart machines such as UPS, air-conditioning, power supply, oily machine, power distribution cabinet and collectors simultaneously according to the standard snmp protocol, make smart machine to be managed by NMS.This adapter can be supported the dynamic access to smart machine, increase at the scene or when reducing the access of smart machine, only need to upgrade the MIB library file of smart machine, and core firmware (firmware) part that need not to revise source program and recompilate SNMP agency (Agent), thereby can significantly improve development efficiency, reduce and insert and debugging cost.
Smart machine adapter SNMP proxy module is mainly realized following function:
Respond the request instruction (comprising: GetRequest and GetNextRequest) of NMS, and the real time data of adapter and smart machine is returned to NMS;
The SET operational order (SetRequest) that response NMS sends is implemented control and setting to adapter, and the result is returned to NMS;
When alarm occurring, adapter initiatively sends the TRAP packet to NMS, and the current state of adapter and smart machine is sent to NMS.
Fig. 1 has shown the network topology of the specific embodiment of the invention, smart machine 1, smart machine 2, smart machine N is connected to NMS by adapter, wherein, smart machine 1, smart machine 2, smart machine N can be polytype smart machines such as UPS, air-conditioning, power supply, oily machine, power distribution cabinet and collector, each other also can be different, with being connected of adapter can be the network interface of snmp protocol, also can be serial ports, RS485 etc. for example, NMS also can be monitoring software or webpage.
Fig. 2 has shown each functional module of adapter and dependence each other thereof, wherein, data acquisition module is responsible for gathering the data of smart machine, data exchange interface and movable alarm interface finish respectively and data module and TRAP (alarm) module between general data and warning information mutual.Data module comprises initialization module, the dynamic parsing module of MIB, mib information Registering modules, call back function and response frame.The dynamic parsing module of MIB is in order to dynamically to resolve the information in MIB storehouse, and the information in the MIB storehouse can be edited by visual MIB editing machine.The SNMP proxy module obtains signal and configuration information by data exchange interface, coherent signal and configuration information are provided with and control, after obtaining the warning information of all smart machines by data exchange interface simultaneously, and initiatively report to NMS by the SNMP proxy module.
Adapter Agent proxy module provides a unified network management interface to NMS, no matter how complicated managed device has, concerning NMS, only need and the mutual network management information that just can obtain all managed devices of Agent agency, introduce the Agent agency below in detail and receive the action of taking behind the message:
The first step: decoding generates the message of representing with internal data structure, decoding is according to ASN.1 (Abstract Syntax Notation One, abstract syntax notation one, a kind of ISO/ITU-T standard has been described a kind of data format that data are represented, encode, transmitted and decode.It provides a whole set of regular form to be used for the structure of description object, and no matter how to carry out and specifically the referring to of these data on the language, which type of application program does not also spend pipe is on earth) Basic Encoding Rules, cause decoding failure then abandon this message if mistake in this process, occurs, do not do further processing.
Second step: the version number in the message is taken out,, then abandon this message, do not do further processing if inconsistent with the SNMP version of this Agent agency support.
The 3rd step: the group's name in the message is taken out, and this group's name is filled in by the network management workstation of the request of sending.Be not inconsistent as group's name, then abandon this message, do not do further processing, produce a TRAP message simultaneously with the approval of this equipment.
The 4th step: propose protocol Data Unit (Protocol DataUnit is called for short PDU) from the ASN.1 object by checking, if failure, dropping packets is not done further processing.Otherwise handle PDU, the result will produce a message, and the transmission destination address of this message should be with the source address unanimity of receiving message.
According to different PDU, the snmp protocol entity will be done different processing.A SNMP message is made up of three major parts: a protocol version (Version), SNMP community (Community) identifier and a data field.The data field is divided into several protocol Data Units PDU (Protocol Data Unit), and each PDU comprises a request (being sent by management system) or a response (being sent by administration agent).SNMP message structure such as table 1:
Table 1
| Version number (Version) |
| Group's name (Community) |
| Protocol Data Unit (PDUs) |
SNMP has 5 kinds of messages, so its PDU also has 5 kinds, is example with GetRequest-PDU, its structure such as table 2:
Table 2
| The Request request is in order to a numeral of match responding and request |
| Error condition is in order to provide type of error |
| Error indexes indicates and produces wrong variable antithesis |
| The name of variable antithesis table storage and managenent variable and value |
Operation has identical PDU form with get-next-request for the get-request of SNMPv1, set-request, get-response, and is as shown in table 3:
Table 3
| ??PDU ??Type | ??Request ??ID | ??Error ??Status | ??Error ??Index | ??Object?1 ??Value?1 | ??Object?2 ??Value?2 | ??Object?x ??Value?x |
PDU Type: indicate PDU type (GetRequest, GetNextRequest, SetRequest, Trap);
Request ID:SNMP request mark;
Error Status: expression mistake and type of error, have only operation response that this field just is set, other operations are made as 0 with this field;
Error Index: error indexes number, relevant with the mistake of particular object instance, have only operation response that this field just is set, other operations are made as 0 with this field;
Variable Bindings: the Object 1Value 1 in promptly showing, Object 2Value 2, Objectx Value x etc., the data field of SNMPv1PDU, carry the currency (this field of Getand GetNext request is left in the basket, because need not the value of carrying) of particular object instance.
Processing to different PDU is an example with GetRequest PDU:
First kind of situation: if the variable name among the PDU does not exist in the MIB storehouse of local maintenance, the protocol entity that then receives this PDU will send a GetResponse message to NMS, PDU wherein and source PDU have only not together: ERROR-STATUS is changed to noSuchName, and goes out to produce the position of this variable in variables L IST at the ERROR-INDEX middle finger.
Second kind of situation: if the native protocol entity with the length of the response message that produces greater than local length restriction, to send a GetResponse message to NMS, this PDU is changed to tooBig except ERROR-STATUS, and ERROR-INDEX is changed to beyond 0, and PDU is identical with the source.
The third situation: if the native protocol entity is because other reasons can not produce correct response message, to send a GetResponse message to the person of sending of this PDU, this PDU is changed to genErr except ERROR-STATUS, ERROR-INDEX is changed to the position of variable in variables L IST of makeing mistakes, and all the other are identical with source PDU.
The 4th kind of situation: if top situation does not all have to take place, then the native protocol entity sends a GetResponse message to NMS, the mapping table that will comprise variable name and analog value among this PDU, ERROR-STATUS is noError, ERROR-INDEX is 0, and the value in request-id territory should be identical with the request-id that receives PDU.)
Adapter at first generates dynamic OID table according to smart machine MIB storehouse, when generating table, by real needs definition list data and corresponding call back function when each Agent of startup acts on behalf of.This just need utilize MIB to resolve the storehouse, at a cover power function in MIB storehouse, can dynamically resolve and revise the MIB storehouse easily, and concrete FB(flow block) is shown in figure three.
Wherein, adapter Agent proxy initialization module has mainly been finished the OID storehouse that the MIB storehouse is dynamically resolved part and registered the MIB management object, and its FB(flow block) is shown in figure four.
A critical function of adapter is exactly to finish the synthetic of each smart machine MIB storehouse and dynamically parsing, the MIB storehouse can be mapped to process inside, organizes data by the defined hierarchical structure of MIB.The dynamic parsing module in MIB storehouse has mainly been finished the channel number of the smart machine acquired signal in the title of each management object in the MIB storehouse, status, type and the OID information of same smart machine so storehouse has been set up dynamic mapping relations, every bars that the user of each smart machine is paid close attention to is mapped to unique OID number in the MIB storehouse, and the idiographic flow block diagram is shown in figure five.Wherein, so storehouse is the dynamic base under the Linux, and in the windows system, the static library file is the .lib file, and dynamic library file is the .dll file.And in the unix system, static library file and dynamic library file suffix are respectively .a and .so.
Also comprise dynamic process in the adapter, can in MIB, define Alarm Trap flexibly and be table (table) structure the TRAP function.The contents such as alarm number, alarm time, alarm status, alarm grade and alarm description of all warning information of definition in this table structure.Be different from prior art every of smart machine concrete alarm signal is defined as different OID respectively, the particular content of every alarm is that each producer is according to different needs, when designing and the MIB storehouse is provided, define, thereby, all in the MIB storehouse, define as an OID every concrete warning content.The present invention is equivalent to extract structure of each attribute formation of warning information, and with the example of each warning information as structure.
As shown in Figure 6, the alarm that adapter Agent obtains current active by data exchange interface, and resolve according to the Table structure that defines in the MIB storehouse, form the TRAP message then, be reported to NMS, thereby realize the alarm function of adapter.
Main feature of the present invention comprises:
1, is not restricted to a kind of access of smart machine, can inserts polytype smart machine simultaneously, comprising: UPS, air-conditioning, power supply, oily machine, power distribution cabinet and collector etc.
2, polytype smart machine of Jie Ruing comprises the non-SNMP smart machine of serial interface and the SNMP smart machine of network interface interface.
3, support dynamic access, increase at the scene or when reducing the access of smart machine, only need to upgrade the standard mib library file of this scheme, and need not to revise source program and recompilate SNMP core firmware part smart machine.
4, dynamic binding is carried out in unique OID number of managed object in each acquired signal of smart machine and the MIB storehouse, really accomplished dynamically to insert smart machine.Flexibly definition Alarm Trap is the table structure in the MIB storehouse, contents such as the alarm of all warning information of definition number in this structure, alarm time, alarm status, alarm grade and alarm description.Rather than every of smart machine concrete alarm signal enumerated out respectively.
5, the MIB storehouse generates flexibly.
The present invention is connected to Ethernet with polytype smart machine simultaneously according to the standard snmp protocol, make it possible to be managed by SNMP Network Management Station (NMS), can support dynamic access to smart machine, increase at the scene or when reducing the access of smart machine, only need to upgrade the MIB library file of smart machine, and need not to revise source program and recompilate SNMP agency's core firmware part, thereby significantly improved development efficiency, reduced access and debugging cost.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. the intelligent device management method based on snmp protocol is characterized in that, comprises following steps:
A, smart machine adapter are in initialization procedure, according to the dynamic formation object identification information of intelligent device management information database table;
B, webmaster be according to described object id information table, finishes management to smart machine by described smart machine adapter.
2. intelligent device management method as claimed in claim 1 is characterized in that, describedly comprises the steps: according to the dynamic formation object identification information of intelligent device management information database table
A11, generate the intelligent device management information database according to smart machine so storehouse;
A12, dynamically resolve described intelligent device management information database, obtain object identity;
A13, set up the dynamic mapping relationship of object identity and acquisition channel number, formation object identification information table.
3. intelligent device management method as claimed in claim 1 is characterized in that, described initialization procedure also comprises the steps: after formation object identification information table
A21, call and resolve described object id information table;
A22, registration intelligent device management management of information database object information;
A23, initialization TRAP transmit queue;
A24, startup SNMP intercept task.
4. intelligent device management method as claimed in claim 1 is characterized in that described step B comprises the steps:
B1, smart machine adapter detect and receive the request message of described webmaster, after the empirical tests success, take out the protocol Data Unit in the request message;
B2, smart machine adapter identification protocol data cell type are called corresponding call back function;
B3, smart machine adapter call data exchange interface to the smart machine image data;
B4, smart machine adapter are analyzed mapping according to described object id information table to image data, the data formation response message according to call back function and after analyzing mapping;
B5, webmaster finish management to smart machine according to described response message.
5. intelligent device management method as claimed in claim 4 is characterized in that, the checking of described step B1 comprises:
B11, decode,, take out the version number in the request message as success according to ASN.1 encoding and decoding rule, otherwise dropping packets;
Whether B12, checking version number be consistent with the snmp protocol version that the smart machine adapter is supported, as unanimity, takes out the group's name in the request message, otherwise dropping packets;
Whether B13, checking group name be consistent with group's name of smart machine adapter approval, as unanimity, be proved to be successful, otherwise dropping packets.
6. as the arbitrary described intelligent device management method of claim 1 to 5, it is characterized in that described webmaster also comprises the alarm process to the management of smart machine:
C1, smart machine adapter form warning information according to predefined alarm list structure, and the list structure attribute of described warning information comprises alarm number, alarm time, alarm grade, alarm description and alarm type;
C2, smart machine adapter call alarm sending function, and described warning information is sent to webmaster.
7. the intelligent device management system based on snmp protocol is characterized in that, described system comprises webmaster and smart machine adapter, and described smart machine adapter is used for according to the dynamic formation object identification information of the management information base of smart machine table; Described webmaster is used for according to described object id information table, finishes management to smart machine by described smart machine adapter.
8. intelligent device management as claimed in claim 1 system is characterized in that described smart machine comprises the smart machine of serial interface and the smart machine of network interface interface.
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| CN113485765A (en) * | 2021-07-07 | 2021-10-08 | 上海顺舟智能科技股份有限公司 | Control strategy configuration method, device, equipment and medium for intelligent equipment of Internet of things |
| CN113485765B (en) * | 2021-07-07 | 2023-09-22 | 上海顺舟智能科技股份有限公司 | Control strategy configuration method, device, equipment and medium of intelligent equipment of Internet of things |
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