CN100449964C - Method of testing and locating fault of network management system software in phototiming digital transmission system - Google Patents
Method of testing and locating fault of network management system software in phototiming digital transmission system Download PDFInfo
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Abstract
The present invention discloses a method for testing the network management system software of an SDH and positioning the faults of the network management system software of the SDH. The test method comprises the following steps: a test case is input and stored in a memory of a computer of a network management system of the optical synchronous digital transfer hierarchy; check points are set between adjacent layers of the network management system software by an interface adaption program, and the interface adaption program is used for accessing to the network management system software to be tested to intercept an output message of the network management system software to be tested according to the interface structures between the adjacent layers of the network management system software; the test case is run in the network management system; the output message is intercepted at the check points of the network management system; the output message is compared with a test case template to which the test case is corresponding. By using the technical scheme of the present invention, the message output by the network management system only needs to be compared and judged, the network management system and corresponding SDH hardware equipment can be separated, and simultaneously, fault problems can be positioned to the level of a specific layer of the network management system.
Description
Technical field
The present invention relates to test and Fault Locating Method, relate in particular to Optical synchronization digital is transmitted the network management system software test of system (SDH) and the method for fault location telecommunication management network (TMN).
Background technology
The network management system of Optical synchronization digital transmission network should be included the category of telecommunication network management net (TMN) in.
TMN a kind ofly is independent of telecommunications network and the full-time telecommunication management network that carries out network management, the basic conception of TMN, be to utilize an entity architecture that possesses series of standards interface (comprising agreement and message specifies) that a kind of organized structure is provided, make various dissimilar operating systems (network management system software) and telecommunication apparatus interconnected, thereby realize the automation and the standardized management of telecommunications network, and a large amount of various management functions are provided.TMN adopts the system management notion and the instrument of Open System Interconnection (OSI), and such as manager/agency's the notion and the use of management objectives etc., thereby TMN can be regarded as the network that application OSI notion is carried out telecommunications network and telecommunications service management.
The management of communication environment is that a kind of information processing is used.Because communication environment is distributed, thereby network management also is a Distributed Application.So-called organize models is mainly used to describe in the network management management role and how distributes and organize, is exactly specifically to describe managing process to serve as and control role (manager) and controlled role's (agency) ability and the correlation between manager and the agency.Manager's (MANAGER) task is the notice that sends administration order and receive agency's (AGENT) loopback; Agency's task is directly to manage relevant management objectives, the order that the response management person sends, and loopback reflects the manager that is notified to of management objectives behavior.Manager and agency's relation is not one to one, and a manager can carry out information exchange with a plurality of agencies, and an agency also can carry out information exchange with a plurality of managers.
Transmit system (SDH) specific to Optical synchronization digital, the network management system of SDH is the organic component of whole TMN webmaster, thereby must follow the Common Information Model of TMN.
At present, the Optical synchronization digital network management system that transmits system (hereinafter to be referred as transmission) generally is made up of 4 levels: i.e. graphical user interface layer (GUI), manager's layer (MANAGER), Agent layer (AGENT) and controlled target (MCU).Each layer finished different functions; get in touch by specific interface and agreement between layer and the layer; GUI provides user interface; MANAGER is responsible for the control and management of network; AGENT is responsible for the management of network element; MCU then is responsible for the management of each function veneer (or plate); the MCU part is because of tight with combination of hardware; usually incorporate hardware system into, 4 levels coordinate to finish five big management functions such as alarm management that Optical synchronization digital transmits the network management system of system, performance management, configuration management, safety management, maintenance management mutually.
For the test of network management system software,, generally be difficult to certain level is wherein carried out independent test on the one hand because each level in the network management software of Optical synchronization digital transmission network interrelated.And the correctness of network management system management function need be verified by the running of hardware system, also to be connected during the test network management system with hardware system, even the test of carrying out network management system does not separately break away from the checking of hardware system yet, caused to the taking of SDH hardware resource the shortcoming of hardware networking complexity when also having test simultaneously.
On the other hand, because test result only is reflected in the output situation of related hardware system, therefore when in network management system uniting and adjustment or test, going wrong, the location of problem is required a great deal of time usually, sometimes even occur can't be to the situation of problem origination point location.Issue the order of an alarm shield such as GUI, but relevant veneer is not but carried out masking operation on the equipment, still is that single plate hardware causes at GUI, MANAGER, AGENT, MCU in order to locate this problem actually, can spend the more time.
The management mode of transmission network management system is a centralization, is that a set of network administration systems is managed one or more transmission networks in actual motion, and the webmaster of any general version must be provided by the networking and the defencive function of the transmission network that provides.For adapting to the various market demands; various transmission equipment is constantly released; the transmission network of online operation generally all is mixed networking and protections of various transmission equipments; and need to adopt same set of network management system to come network is managed; the network management system that so just requires each version all need provide support to the various networkings and the protection of different transmission equipments, for this network management system to each version all need comprehensively be tested.Now, phototiming network management system is comprehensively tested because interconnected with hardware device, and test result only reacts on the corresponding output of hardware, therefore need a large amount of time, manpower and device resource.Along with the continuous release of redaction webmaster and new transmission equipment, the tester constantly carries out webmasters such as repetition, loaded down with trivial details networking and protection test and tests, and has expended a large amount of human and material resources, and the test job amount of network management system is more and more heavier, and testing efficiency is not high.
Summary of the invention
Technical problem to be solved by this invention is existing to transmitting hardware device in conjunction with corresponding phototiming in the network management system software test procedure of Optical synchronization digital transmission system (SDH) in order to overcome, and take the technical problem of hardware resource;
Further, technical problem to be solved by this invention is in order to overcome in the existing network management system software test procedure that Optical synchronization digital is transmitted system (SDH), the technical problem that the test failure of finding is difficult to locate;
The technical scheme that realizes technical problem to be solved by this invention and take is summarized as follows.
Provided by the invention Optical synchronization digital is transmitted the method for the network management system software test of system, may further comprise the steps:
With test case input and be stored in the memory of computer of network management system that Optical synchronization digital transmits system;
Each interlayer at network management system software is provided with test point by the interface adaptation procedure, described interface adaptation procedure is used for according to the interface structure between the layer of network management system software, insert network management system software to be tested, intercept the outgoing message of network management system software to be tested;
In network management system operation test case;
Test point intercepting outgoing message in network management system;
The message test case template corresponding with described test case of output compared.
Transmit at Optical synchronization digital on the computer display apparatus of network management system of system and export comparative result.
On the other hand, the method that the network management system software fault of Optical synchronization digital transmission system is located provided by the invention may further comprise the steps:
With test case input and be stored in the memory of computer of network management system that Optical synchronization digital transmits system;
Each interlayer at network management system software is provided with test point by the interface adaptation procedure, described interface adaptation procedure is used for according to the interface structure between the layer of network management system software, insert network management system software to be tested, intercept the outgoing message of network management system software to be tested;
The different layers that has the network management system software of fault by independent simulation of interface adaptation procedure or combine analog;
In network management system operation test case;
Test point intercepting outgoing message in network management system;
The message test case template corresponding with described test case of output compared.
Adopt technical solution of the present invention, when the network management system software of Optical synchronization digital transmission system (SDH) is tested, compared with prior art, only need the message of webmaster output is compared judgement, network management system is separated with corresponding SDH hardware device, minimizing takies the SDH hardware resource, greatly reduces the system testing cost; Adopt technical scheme of the present invention simultaneously, can be fast the failure problems of network management system be navigated to the concrete layer one-level of SDH webmastering software.
Description of drawings
Fig. 1 shows the hierarchy of layered system software that Optical synchronization digital transmits the network management system software of system;
Fig. 2 shows the test of a specific embodiment of the present invention and the flow chart of fault location.
Embodiment
At first several the technology contents that technical scheme of the present invention is related to are described respectively.
SDH network management system software abbreviates webmaster hereinafter as.
The firstth, to the technology of SDH network management software zonal testing.In the layered architecture of webmaster, exist corresponding interoperability interface to connect different layer information, as at the F interface between GUI layer and the MANAGER layer, at the Q3/Qx interface between MANAGER layer and the AGENT layer, at ECC interface between the AGENT layer and the S interface between AGENT layer and management objectives layer (the S interface is privately owned interface), see accompanying drawing 1.When webmaster is tested, on F interface, Q3/Qx interface, ECC interface, S interface, set up test point respectively, utilize the interface adaptation procedure, it is adaptive simultaneously to carry out interface respectively at the different webmastering software level of test, sets up F interface adaptation procedure, Q3/Qx interface adaptation procedure, ECC interface adaptation procedure and S interface adaptation procedure respectively.Described interface adaptation procedure is used for inserting network management system software to be tested according to the interface structure between the layer of network management system software, intercepts the outgoing message of network management system software to be tested.By the interface adaptation procedure, the time can simulate the different levels of network management system respectively in test, so that other levels are carried out alone or in combination test, specific as follows:
Graphic user interface (GUI) simulation, the F interface adaptation procedure of establishment GUI side, (MANAGER) is connected with manager's layer, can simulate GUI by the interface adaptation procedure and send F mouth message to MANAGER this moment, receive the information that MANAGER reports simultaneously, can test the following level of F mouth thus;
Manager's layer (MANAGER) is simulated, and works out the F interface and the Q3/Qx interface adaptation procedure of MANAGER side respectively, can simulate MANAGER by the interface adaptation procedure GUI and the following webmaster level of MANAGER are tested respectively;
Agent layer (AGENT) simulation, the Q3/Qx interface adaptation procedure of establishment AGENT side, the interface adaptation procedure can be simulated AGENT the above level of MANAGER is tested;
For ECC interface and S interface, because ECC interface and S interface and SDH device hardware are combined closely, directly act on the hardware device, discrete testing separately, in AGENT, set up stubs for this reason, among the test point place is embedded into the corresponding interface adaptation procedure AGENT, the Telnet (Telnet) and the monitoring tools that utilize real time operating system system (AGENT operates on the real time operating system) to carry are simultaneously controlled and are tested ECC interface and S interface, and the while can simulate AGENT or controlled target (MCU) is tested other levels.
The secondth, the isolation technics of webmaster and hardware system: transmission (SDH) network system belongs to linear system, if network management system (comprising the GUI/MANAGER/AGENT part) is used as a black box, the user is divided into function to be tested the test case of different classification, each test case is by operating on graphic user interface, through the network management system operation, export corresponding message in test point, the SDH hardware device receives the message that issues and carries out, by can verify the correctness of webmaster corresponding function to the execution result test of SDH hardware device.According to the corresponding interface adaptation procedure, on F interface, Q3/Qx interface, ECC interface, S interface, set up test point respectively.According to this mode of operation, can set up the corresponding relation (establishing test case A1, operation input B1, message output C1, execution result D1) between test case, operation input, test point outgoing message and the hardware execution result.
To a test case, the corresponding GUI that operates in goes up and produces an order and issue, and after the webmaster operation, the output result is a message; A test case, the corresponding GUI that operates in goes up and produces an order and issue, and after the webmaster operation, the output result is a plurality of messages; A test case, the corresponding GUI that operates in goes up and produces many orders and issue, and after the webmaster operation, the output result is a plurality of messages; Test case to whole network management system is integrated, and can obtain the corresponding relation of corresponding hardware execution result.
Suppose that for webmaster test case A1, the outgoing message at the test point place is C1, the execution result of SDH hardware is D1.The linear relationship that has according to the SDH network system, if outgoing message C1 is arranged in test point, the execution result that then means hardware will be D1, suppose that Test Network guard system and relevant hardware all are trouble-free, thus, the verification of correctness of test case A1 can be by the correctness of checking hardware execution result D1, and whether the outgoing message that is converted into checking webmaster to be tested is C1.And it is according to front webmaster zonal testing, by setting up the corresponding interface adaptation procedure, described interface adaptation procedure can be intercepted and captured the outgoing message of test point, as long as judge whether the message of intercepting and capturing is C1, whether be D1, verify the correctness of webmaster test case A1 function thus if just can know the hardware execution result by inference.Otherwise, if the function of test case A1 is correct, SDH hardware is trouble-free, and then whether the outgoing message by webmaster to be tested is C1, according to linear dependence, just can know network management system software by inference is trouble-free with respect to the brake for the treatment of of test case A1.
When the Test Network guard system, only the message that needs test to intercept and capture in corresponding test point by the interface adaptation procedure need not to build hardware net again and removes test execution D1 as a result.By adopting this method of testing, the test of network management system can be separated with hardware system.
The 3rd is the technology that the test case template storehouse generates.Isolation technics according to aforesaid webmaster and hardware system, in network management system with after hardware system separates, the judgment standard of the test of network management system just is conceived to the correct message in the test point intercepting and capturing, the generation as the correct message of judgment standard is introduced herein.Describe for convenient, the result's that will generate at the correct message that test point is intercepted and captured set is called the test case template storehouse.
The generation in test case template storehouse need be carried out in conjunction with trouble-free SDH hardware system.By the interface adaptation procedure, at the message of the corresponding test point of network management system place intercepting test point place output.For test case 1, the message of network management system test point output after tested instrument handle by specified rule, generate test case library 1; Simultaneously, network management system is issued to hardware system with the test point outgoing message, hardware system is carried out the message that receives, obtain one and test case 1 corresponding execution result, the tester tests the execution result of hardware system, if execution result is correct, then change test case library 1 over to the test case template storehouse, the test case template 1 in the corresponding test case template storehouse.If the execution result mistake is then thrown away test case library 1.Analogize in this way, test case N (N 〉=1) is repeated said process.Along with constantly carrying out of test, the SDH network management system is stable gradually, and the test case template in the test case template storehouse is accumulation gradually also, is able to perfect gradually.According to the corresponding interface adaptation procedure, described test point is based upon respectively on F interface, Q3/Qx interface, ECC interface, the S interface, and described test case template storehouse is corresponding to corresponding test point.
The 4th is the quick test of network management system and the technology of fault location.Behind a new webmaster version, comprehensively test it, generally need build various soft, hardware systems for this reason and support networking to test, be to realize full test, need very big workload.The main application fields of network management system rapid testing technology is to carry out the regression test of network management system, and wherein the test case template storehouse is prerequisite and the basis of testing fast.The redaction network management system on the basis in original test case template storehouse, is carried out the regression test of system, the original various networkings of test macro and protection and management function after submitting test to.The tester is from above-mentioned test case 1---test case N through checking, respectively network management system is tested, utilize the interface adaptation procedure, be issued to the message of hardware system in corresponding test point place intercepting network management system, generate test case library 1---test case library N, and the test case library that generates is compared as the basis of reference data with corresponding test case template storehouse.If corresponding a certain test case, both data are consistent, and this shows network management system by corresponding test case, and function corresponding is correct; If both data are inconsistent, show that then the network management system of new submission is made mistakes on this test case, function corresponding does not realize, has fault.Result relatively can show by computer display.Message relatively in owing to internal system may occur regularly or the special-purpose message that issues at random, be the normal operation that guarantees the interface adaptation procedure, need the special filter of establishment filter redundant message information.In case discovery comparison error, the comparative information of message before and after the interface adaptation procedure writes down automatically, by this mode, fault directly can be positioned at the message one-level, simultaneously again with this test case by the carrying out of network management system carried out the test of layering by above-mentioned webmaster hierarchical testing technology, can directly carry out definite location, and then, make that for this reason the test of network management system and fault solution are all efficiently carried out for the fault that solves network management system provides effective means to system mistake.When carrying out fault location, by the interface adaptation procedure, the time can simulate the different levels of network management system respectively, so that other levels are carried out alone or in combination test in test.For example, when testing out the webmaster fault, can be by the F interface and the Q3/Qx interface adaptation procedure of MANAGER side, manager's layer (MANAGER) is simulated, insert webmaster to be measured, can simulate the MANAGER layer GUI and the following webmaster level of MANAGER are tested respectively, the function of the MANAGER layer of simulation this moment is correct.Operation makes webmaster to be measured produce the fault test use-case on webmaster to be measured, if intercept and capture to such an extent that message is consistent with message information in the corresponding test case template storehouse this moment at the test point place, can judge that then the function of the manager's layer (MANAGER) that simulated of webmaster to be measured breaks down; If it is inconsistent, continue the network management system of other levels of simulation separately or combine analog (simulating two or more layers), the function of the layer of simulation or the combination of layer is correct, operation makes webmaster to be measured produce the fault test use-case, until intercept and capture to such an extent that message is consistent with message information in the corresponding test case template storehouse at the test point place, can be with fault location to certain one deck that simulated of webmaster to be measured or the layer place of combination.
Owing to separate with hardware system when network management system is tested fast, when carrying out regression test, need not to build hardware environment, just when carrying out new functional test, need build hardware environment, regression test no longer is subjected to the restriction of hardware resource; If improving aspect the test case input, in conjunction with adopting automatic, automanual script input tool (being described in the back), can carry out automatic, automanual high speed test to system, system's regression test time will shorten greatly, and the reliability of test is then strengthened greatly.
The 5th is the automatic technology of testing of network management system that combines with the script input tool.Carry out the automatic test of network management system, its prerequisite is to want automation aspect the input of test case.Two kinds of implementation methods are arranged in this regard, the one, the script input tool of purchase commercialization, the 2nd, develop the script input tool voluntarily.According to the actual conditions and the demand of system, in general be that both are in conjunction with carrying out.The script input tool provides two kinds of mode of operations: script generate pattern, script playback mode.The script generate pattern is used for generating the test script, the tester is in the operation of carrying out test case by computer on network management system, the operation generation script that the script input tool carries out the tester automatically, after script generates, the tester can edit, put in order script, script is made up or add correlation function according to the test needs, revise saving as different tests after finishing and use the script storehouse, corresponding with test case.The script playback mode is used for the script that generates is carried out playback, start the script playback mode of script input tool earlier, the automatic playback script of the playback rules storehouse that this moment, the script input tool was formulated according to the tester, after the playback of script storehouse, automatically producing corresponding test case operates network management system, it is hand-manipulated identical that these operations and tester carry out, after carrying out, network management system produces corresponding message output again, the interface adaptation procedure is tested fast test case and the result is write down and compares, and has judged whether fault.By combining with the script input tool, the input operation of test case is able to automation to be carried out, and like this, network management system just can realize the quick test of automation.
Below in conjunction with accompanying drawing 2, illustrate the mode of an enforcement of the present invention.
When webmastering software was carried out test operation, at first execution in step 201, and test case is imported the webmaster computer, were stored in program storage; Execution in step 202 then, in webmaster computer run test case; Then execution in step 203 by the interface adaptation procedure, intercepts the outgoing message of webmaster at the test point of webmastering software; Follow execution in step 204, the test case template that outgoing message is corresponding with described test case compares, if the comparative result unanimity, execution in step 205 is exported the correct conclusion of the webmaster to be measured function corresponding with test case; If comparative result is inconsistent, execution in step 211 is exported the conclusion of the webmaster to be measured capability error corresponding with test case, and carries out fault location simultaneously and forward step 206 to; Execution in step 206, separately there are the different layers of the network management system software of fault in simulation or combine analog by the interface adaptation procedure; Execution in step 207, operation make webmaster to be measured produce the test case of fault; Execution in step 208 by the interface adaptation procedure, intercepts the outgoing message of webmaster at the test point of webmastering software; Execution in step 209, the test case template that outgoing message is corresponding with described test case compares, if comparative result unanimity, execution in step 210, the corresponding function mistake of layer of the webmaster that simulated of output or a plurality of layers combination, break down,, forward execution in step 206 to if comparative result is inconsistent.
Adopt technical solution of the present invention, when the network management system software of Optical synchronization digital transmission system (SDH) is tested, compared with prior art, only need the message of webmaster output is compared judgement, network management system is separated with corresponding SDH hardware device, minimizing takies the SDH hardware resource, greatly reduces the system testing cost; Adopt technical scheme of the present invention simultaneously, can be fast the failure problems of network management system be navigated to the concrete layer one-level of SDH webmastering software.
Although disclosed relating to, carried out special description to the network management system software test of Optical synchronization digital transmission system (SDH) and the method for fault location with reference to embodiment, those skilled in the art can understand, under the situation that does not depart from scope and spirit of the present invention, can carry out the various modifications of form and details to it.Therefore, that advised more than but the modification do not limited to all within the scope of the present invention.
Claims (6)
1, Optical synchronization digital is transmitted the method for the network management system software test of system, it is characterized in that may further comprise the steps:
With test case input and be stored in the memory of computer of network management system that Optical synchronization digital transmits system;
Each interlayer at network management system software is provided with test point by the interface adaptation procedure, described interface adaptation procedure is used for according to the interface structure between the layer of network management system software, insert network management system software to be tested, intercept the outgoing message of network management system software to be tested;
In network management system operation test case;
Test point intercepting outgoing message in network management system;
The message test case template corresponding with described test case of output compared.
2, method of testing according to claim 1 is characterized in that further comprising the steps of:
Transmit at Optical synchronization digital on the computer display apparatus of network management system of system and export comparative result.
3, method of testing according to claim 1 and 2, it is further comprising the steps of to it is characterized in that the described message test case template corresponding with described test case with output compares step:
Filter the step of redundant message information, the message information of described redundancy is meant network management system internal timing or the special-purpose message that issues at random.
4, Optical synchronization digital is transmitted the method for the network management system software fault location of system, it is characterized in that may further comprise the steps:
With test case input and be stored in the memory of computer of network management system that Optical synchronization digital transmits system;
Each interlayer at network management system software is provided with test point by the interface adaptation procedure, described interface adaptation procedure is used for according to the interface structure between the layer of network management system software, insert network management system software to be tested, intercept the outgoing message of network management system software to be tested;
When testing, simulate the different levels of network management system respectively by the interface adaptation procedure;
In network management system operation test case;
Test point intercepting outgoing message in network management system;
The message test case template corresponding with described test case of output compared.
5, the method for fault location according to claim 4 is characterized in that the described step that compares of the message test case template corresponding with described test case with output is further comprising the steps of:
If the comparative result unanimity is then exported the layer of fault location at the network management system software that simulated;
If comparative result is inconsistent, continue then to carry out that described there are the step of different layers of the network management system software of fault in simulation or combine analog separately by the interface adaptation procedure.
6, according to the method for claim 4 or 5 described fault location, it is further comprising the steps of to it is characterized in that the described message test case template corresponding with described test case with output compares step:
Filter the step of redundant message information, the message information of described redundancy is meant network management system internal timing or the special-purpose message that issues at random.
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| CN100466557C (en) * | 2004-11-10 | 2009-03-04 | 华为技术有限公司 | Communication net node fault monitoring method |
| CN100417080C (en) * | 2005-02-01 | 2008-09-03 | 华为技术有限公司 | Method for detecting network chain fault and positioning said fault |
| CN101197621B (en) * | 2007-12-07 | 2012-03-07 | 中兴通讯股份有限公司 | Method and system for remote diagnosing and locating failure of network management system |
| CN101707503B (en) * | 2009-07-03 | 2014-10-22 | 中兴通讯股份有限公司 | Embedded method and device for controlling automatic positioning of channel communication failure |
| CN113688058B (en) * | 2021-10-26 | 2022-02-22 | 国能日新科技股份有限公司 | Automatic detection system and detection method for station server monitoring software |
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| GB2263833B (en) * | 1992-01-30 | 1995-06-28 | Fujitsu Ltd | Fault detection and location in two-way optical communication systems |
| US5943148A (en) * | 1996-02-23 | 1999-08-24 | France Telecom | Surveillance system of a multi-wavelength ring network |
| CA2277493A1 (en) * | 1998-08-20 | 2000-02-20 | Thomas S. Afferton | Fault detection and isolation in a synchronous optical network (sonet) and in a synchronous digital hierachy (sdh) network |
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