CN102026144A - Roaming performance test method, equipment and system thereof - Google Patents
Roaming performance test method, equipment and system thereof Download PDFInfo
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- CN102026144A CN102026144A CN2010105373791A CN201010537379A CN102026144A CN 102026144 A CN102026144 A CN 102026144A CN 2010105373791 A CN2010105373791 A CN 2010105373791A CN 201010537379 A CN201010537379 A CN 201010537379A CN 102026144 A CN102026144 A CN 102026144A
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Abstract
The invention provides a roaming performance test method, equipment and a system thereof. The method comprises the following steps: sending a set command to a wireless controller so as to lead the wireless controller to set the transmitting powers of all the wireless access points according to the set command, wherein the set command comprises power parameters obtained in advance; obtaining the access information of the client end from the wireless controller, wherein the access information comprises wireless access point identifiers accessed from the client end; and obtaining the practical roaming result of the client end according to the access information and networking state of the client end. When the method, equipment and system are adopted for testing roaming performances, the client end does not need to move, and the efficiency and accuracy of roaming performance test are improved.
Description
Technical field
The present invention relates to radio network technique, relate in particular to a kind of roaming performance test methods, equipment and system.
Background technology
Extended service set (Extended service set; Abbreviate as: ESS) be WLAN (wireless local area network) (Wireless Local Area Network; Abbreviate as: a kind of networking mode of typical point-to-multipoint WLAN).In the ESS net, there is a plurality of WAP (wireless access point) (Access Point; Abbreviate AP as), a kind of equipment of realizing cable network and wireless network interconnection.Usually AP only has the function of 802.11 physical layers, promptly can only carry out the transmission and the reception of radio frequency signal, needs and a wireless controller (Access Controller; Abbreviate as: AC) connect, by AC centralized control and management to have access to spider lines.Client (Supplicant; Abbreviate as: Su) have access to spider lines by AP.
Client can move freely in the wireless network coverage, has solved to receive wire harness and tie up the problem that can't move freely.When a plurality of AP wireless signal overlay area separately intersected covering, client can be roamed between each AP, realized the seamless link between the wireless coverage area.Promptly when client when a position moves to another position, client place terminal is (for example: near the signal strength signal intensity of AP wireless network card personal computer) can detect.Usually wireless network card is provided with a signal strength threshold, whether switches AP with decision.If the signal strength signal intensity of detected former access AP still greater than the signal strength signal intensity of signal strength threshold of setting or former access AP less than the signal strength threshold of setting but do not detect the more AP of high signal intensity, then can not roam, client still has access to spider lines by former access AP; If the signal strength signal intensity of detected former access AP is less than the signal strength threshold of setting and detect the AP of signal strength signal intensity greater than the signal strength threshold of setting, then to roam, client has access to spider lines by signal strength signal intensity greater than the AP of signal strength threshold.This roam procedure is transparent to the user, can not interrupt therebetween and being connected of cable network.Be example explanation client by position A through position B, roaming process when position C moves to position D with network topology structure shown in Figure 1 below.
Concrete, when client moves to position A, detect the signal strength signal intensity of the signal strength signal intensity of AP11 greater than AP12, because this moment, client was not in the coverage of AP12, the signal strength signal intensity that detects AP12 is 0, and therefore, client has access to spider lines by AP11.When client moves to position B, detect AP11 and have identical signal strength signal intensity with AP12, still, the signal strength signal intensity of AP11 is still greater than signal strength threshold, so client still has access to spider lines by AP11.When client moves to position C, detect the signal strength signal intensity of the signal strength signal intensity of AP12 greater than AP11, and this moment, the signal strength signal intensity of AP11 was lower than signal strength threshold, and the signal strength signal intensity of AP12 is greater than signal strength threshold, become by AP12 and have access to spider lines so client has access to spider lines by AP11, promptly roam.When client moves to position D, detect the signal strength signal intensity of the signal strength signal intensity of AP12 greater than AP11, client is not in the coverage of AP11 at this moment, and the signal strength signal intensity that detects AP11 is 0, so client still has access to spider lines by AP12.
By above-mentioned roam procedure as can be known: radio roaming can be expanded the coverage of single AP greatly, has broken through the restriction of wireless network covering radius, and the user can be roamed in the AP coverage, and can not lose and the getting in touch of network, and communication can not interrupted yet.Further,, make the probability that roaming takes place increase greatly, improved requirement virtually roaming function stability along with the popularizing of notebook, the development of wireless network and the densification of people's rhythm of life.And be to guarantee the client important way that success is roamed in roaming range to the test of roaming function stability.
At present, to roaming function stability test method mainly is by disposing roaming environments, held the terminal of client then by the tester, moving to the another location from a position, check whether successfully roaming of terminal then, promptly whether have access to spider lines by new AP.This test mode needs the tester to hold equipment such as terminal to walk up and down, not only take time and effort, and testing efficiency and precision are all lower.
Summary of the invention
The invention provides a kind of roaming performance test methods, equipment and system, in order to improve the efficient and the precision of test radio roaming performance.
The invention provides a kind of roaming performance test methods, comprising:
Send setting command to wireless controller, so that described wireless controller is provided with the transmitting power of each WAP (wireless access point) according to described setting command, described setting command comprises the power parameter that obtains in advance;
Obtain the access information of client from described wireless controller, described access information comprises the wireless access point identification that described client inserts;
Obtain the networking state of described client from described client;
According to the access information of described client and the networking state of described client, obtain the actual roaming result of described client.
The invention provides a kind of roaming performance test apparatus, comprising:
Control module is used for sending setting command to wireless controller, so that described wireless controller is provided with the generation power of each WAP (wireless access point) according to described setting command, described setting command comprises the power parameter that obtains in advance;
Roam detection module, be used for obtaining from described radio network controller the access information of client, described access information comprises the wireless access point identification that described client inserts;
The online detection module comprises first acquiring unit; Described first acquiring unit is used for obtaining from described client the networking state of described client;
First acquisition module as a result is used for obtaining the actual roaming result of described client according to the access information of described client and the networking state of described client.
The invention provides a kind of roaming Performance Test System, comprise arbitrary roaming performance test apparatus provided by the invention, also comprise: wireless controller, WAP (wireless access point) and client;
Described roaming performance test apparatus is connected with described client with described wireless controller respectively, and described WAP (wireless access point) is connected with described client with described wireless controller respectively.
Roaming performance test methods of the present invention, equipment and system, employing sends setting command to AC, set the transmitting power of AP according to setting command by AC, and insert which AP by obtaining client, and the networking state of client, with the technical scheme that the roaming performance is tested, can be that different value is simulated roaming scence by the transmitting power of setting AP, need not client and move, improved the efficient of test roaming performance; In addition, by directly obtaining the AP information of client access and the last net state that directly obtains client from client from AC, only compared with human eye viewing client-side roaming result in the past, this method is obtained the roaming result from AC and two places of client immediately after roaming, the error that the time difference that has existed when having avoided human eye to check as a result and naked eyes cause has guaranteed precision and accuracy to the radio roaming performance test.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of roam procedure in the prior art network configuration;
Fig. 2 be the embodiment of the invention based on the structural representation of test network;
The flow chart of the roaming performance test methods that Fig. 3 provides for the embodiment of the invention one;
The flow chart of the roaming performance test methods that Fig. 4 A provides for the embodiment of the invention two;
The flow chart of the roaming performance test methods that Fig. 4 B provides for the embodiment of the invention three;
The flow chart of the power parameters acquisition method that Fig. 5 provides for the embodiment of the invention four;
The overall flow figure of the roaming performance test methods that Fig. 6 provides for the embodiment of the invention five;
The structural representation of the roaming performance test apparatus that Fig. 7 provides for the embodiment of the invention six;
The structural representation of the roaming performance test apparatus that Fig. 8 A provides for the embodiment of the invention seven;
The structural representation of the roaming performance test apparatus that Fig. 8 B provides for the embodiment of the invention eight;
The structural representation of the roaming performance test apparatus that Fig. 9 provides for the embodiment of the invention nine;
The structural representation of the roaming Performance Test System that Figure 10 provides for the embodiment of the invention ten.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
At first to technical solution of the present invention based on test environment describe.Wherein, various embodiments of the present invention can be with the ESS net of reality as test environment, so that the radio roaming performance is tested.But because the real network environment is comparatively complicated, and test process may influence the operation of real network, therefore, can build the wireless network topology structure in advance usually, for test radio roaming performance provides test environment.
At first, according to the scene of actual wireless network analysis generation roaming, then, build the network topology (the follow-up test network that is called) of test environment according to roaming scence.Usually, can have following 4 kinds of roaming scences in real network: (1) is roamed between two different AP in the identical AP group under same AC; (2) under different AC, roam between two AP in the identical AP group; (3) different AP group internetwork roamings under different AC; (4) different AP group internetwork roamings under same AC.Technical solution of the present invention is suitable for above-mentioned various roaming scence, and wherein for convenience of explanation, following each embodiment of the present invention is that example describes with the test network of building based on roaming scence (1) all.As shown in Figure 2, this test network comprises cable convertor 21 (Switch), certificate server 22 (Server), AC23, AP24, AP25 and client 26.Cable convertor 21 is connected with AC23 with certificate server 22; AP24 and AP25 are two WAP (wireless access point) under the AC23, and belong to same AP group, are connected with AC23 by cable network respectively; Client 26 is used for inserting AC23 respectively by AP24 and AP25, and has access to spider lines after by certificate server 22 authentications.
Embodiment one
The flow chart of the roaming performance test methods that Fig. 3 provides for the embodiment of the invention one.The executive agent of present embodiment is the roaming performance test apparatus, and as shown in Figure 3, the roaming performance test methods of present embodiment comprises:
Step 301, send setting command to AC, so that AC is provided with the transmitting power of each AP according to setting command, described setting command comprises the power parameter that obtains in advance;
Particularly, after putting up test network, the roaming performance test apparatus of present embodiment sends setting command to AC, comprises the power parameter that the roaming performance test apparatus obtains in advance in this setting command.AC receives after the setting command, sets the transmitting power of each AP in the test network according to the power parameter in the setting command, carries out the simulation of roaming scence, roam procedure is tested beginning.With test network shown in Figure 2 is example, and the transmitting power that the roaming performance test apparatus can be set AP25 by AC23 is a fixed value, and the descending transmitting power of setting AP24 gradually, with simulant-client from AP24 gradually near the process of AP25.Wherein, power parameter comprises a plurality of performance numbers, and wherein a part of performance number is corresponding to a plurality of transmitting powers of the AP that is mapped to during different test point in the simulation roam procedure, for example each transmitting power that can gradually change for AP24; Also comprise some other user power values simultaneously, for example a certain performance number can be used for setting fixing transmitting power etc. for AP25.
Step 302, obtain the access information of client from AC, described access information comprises the AP sign that client inserts;
After test beginning, which AP access network the roaming performance test apparatus obtains client from from AC, the sign of the AP that promptly obtains client and inserted, and the sign of storing this AP simultaneously is so that the follow-up roaming result that obtains.Wherein, the every execution of the AC operation of once setting transmitting power all will be carried out and obtain the operation that client from which AP inserts.For example: when AC23 set AP24 and/or sets the transmitting power of AP25, the roaming performance test apparatus all will obtain client 26 from AC23 and from which AP (AP24 or AP25) insert.
Step 303, obtain the networking state of client from client;
After the test beginning, whether the roaming performance test apparatus also needs to obtain client from client can normally surf the Net, and promptly whether normally has access to the networking state of spider lines.Wherein, roaming performance test apparatus execution in step 302 is obtained access information and execution in step 303 and is obtained the operating sequence of networking state and unrestricted, can be according to obtaining the order execution of obtaining the networking state behind the access information earlier, can can also be the mode of operation of obtaining access information and networking information simultaneously also according to obtaining the order execution of obtaining access information behind the networking state earlier.
In like manner, the setting operation of a transmitting power of the every execution of AC, can the roaming performance test apparatus all will obtain client and normally surf the Net.
Step 304, according to the access information of client and the networking state of client, obtain the actual roaming result of client.
Particularly, when the roaming performance test apparatus gets access to client and can normally surf the Net, illustrate that client has successfully inserted cable network by the AP of the sign correspondence obtained in the step 302, can draw under the situation that client takes place to roam determining: roam successfully.When the roaming performance test apparatus gets access to client and can't normally surf the Net, illustrate that the AP of client by the sign correspondence obtained in the step 302 fails to have access to spider lines that determining that client takes place can draw under the situation of roaming: roaming is failed.
The roaming performance test methods of present embodiment, send setting command by the roaming performance test apparatus to the AC of control AP, is that different value is simulated roaming scence by AC according to the transmitting power that setting command sets gradually AP, move and need not client, especially not needing the tester to hold client moves around, not only improve the efficient of test roaming performance, also guaranteed the precision of test roaming performance; In addition, by directly obtaining the AP information of client access and the last net state that directly obtains client from client from AC, and then obtain the roaming result method, only compare with prior art with human eye viewing client-side roaming result, this method is obtained relevant roaming information immediately and is generated the roaming result from two places of AC and client after roaming, avoided human eye to check the time difference of roaming result mode existence and the error that naked eyes cause, guaranteed precision and accuracy the radio roaming performance test.Further, the roaming performance test methods that present embodiment provides does not need complicated test network, does not need to lay complicated hardware equipment, and is lower to tester's hardware capabilities requirement, is convenient to implement.
Embodiment two
The flow chart of the roaming performance test methods that Fig. 4 A provides for the embodiment of the invention two.Present embodiment can realize that shown in Fig. 4 A, the roaming performance test methods of present embodiment comprises based on embodiment one:
Wherein, the detailed process of step 401-step 404 can be referring to embodiment one, and the difference of present embodiment and embodiment one is also to comprise step 405, specific as follows shown in:
The actual roaming result of the client that step 405, basis are obtained and actual roaming corresponding preset roaming as a result result generate and roam test report as a result.
Wherein, the roaming performance test apparatus can obtain the theory roaming result of power parameter correspondence in advance when obtaining power parameter, and stores this theory roaming result.This theory roaming result is the default roaming result in the technical solution of the present invention.
Particularly, the actual roaming result of the client that the roaming performance test apparatus will get access under the transmitting power of setting and pairing theoretical roaming result compare, and generate roaming test report as a result.Wherein, roaming test report as a result can offer the tester with tabular form, carries out subsequent treatment in view of the above to make things convenient for the tester.Simultaneously, the roaming performance test apparatus can also with should reality roaming result or roaming as a result test report store in the database so that the tester inquires about when needed.
Further, on the basis of technique scheme,, obtain the roaming log information of client simultaneously from client when roaming performance test apparatus when obtaining the networking state of client; This roaming log information recording each step of client roam operation and the result of each step, for example: begin to switch to another AP, roam to switch and whether successfully wait from certain AP in roaming, the roaming, this roaming log information is stored in certain file on the client place terminal (for example PC), can obtain the roaming log information by reading this document content.Then,, can or roam test report as a result, obtain and roam the performance impact parameter according to roaming log information and actual roaming result when the roaming performance test apparatus gets access to actual roaming result or roaming as a result after the test report.Wherein, this operation specifically is meant when actual roaming result fails for roaming, can obtain the reason of roaming failure and the various factors that influences roam procedure by the roaming daily record of client being advanced the information row analysis; For example: roaming has been write down when certain AP switches to another AP in the log information and has been failed, then tentatively decision problem go out AP or AC alternately on; If write down the client certificate failure of roaming back in the roaming log information, then can decision problem may go out first-class at certificate server.
Further, based on technique scheme of the present invention, can also obtain a plurality of actual roaming results by repeatedly roam procedure being tested, and test and analyze roaming stability according to a plurality of actual roaming results.Wherein, testing time can be preestablished by the tester according to factors such as the network architecture, scale or accuracy requirement, embodies testing time by default number threshold value in following examples of the present invention.
Embodiment three
The flow chart of the roaming performance test methods that Fig. 4 B provides for the embodiment of the invention three.Present embodiment can be realized based on embodiment one or embodiment two.Based on embodiment one, the difference of itself and embodiment one is, and is further comprising the steps of after obtaining the actual roaming result of client:
Whether the actual roaming result's that step 305, judgement are obtained number reaches default number threshold value; Wherein default number threshold value can be used for being expressed as the number of times of the roam procedure of the needs test that the stability of test roam procedure sets.When judged result is the actual roaming result's that obtains a number when reaching this default number threshold value, execution in step 307; Otherwise, when judged result is the actual roaming result's that obtains a number when not reaching this default number threshold value, execution in step 306.
Step 306, obtain power parameter again, and return step 301 to continue to carry out the test of roam procedure next time.Wherein, the power parameter that obtains again is included in the setting command equally, and the transmitting power of each AP is set according to power parameter when the test of roam procedure next time for AC.Need explanation at this, the power parameter in each roam procedure test can be identical, also can be different, this is not done qualification.
What step 307, basis were obtained should a default number threshold value reality roam the result, obtained the roaming stability result.
The main thought of present embodiment is: in the simulation of a roam procedure, by setting a plurality of transmitting powers for each AP, make the descending or ascending gradual change successively of transmitting power of each AP, so that the roam procedure of simulation is truer, the accuracy when improving the test of each roam procedure.Wherein, whenever obtain the test of power parameter corresponding to a roam procedure; Further by repeatedly obtaining simulation and the test of power parameter, then according to test and the analysis of a plurality of actual roaming result realization of obtaining to the stability of roam procedure to carry out repeatedly roam procedure.
Particularly, in each roam procedure test, the roaming performance test apparatus all will obtain a plurality of access informations of client in this roam procedure test; Wherein, to be that AP sets the number of times of transmitting power identical for AC in the quantity of access information and the each roam procedure test, promptly need obtain the access information of client in each roaming test process under each transmitting power at AP.In like manner, in each roam procedure test, the roaming performance test apparatus also needs to obtain the networking state of client under each transmitting power, promptly when the roaming performance test apparatus whenever is transmitting power of AP setting by AC, will obtain the networking state of the client under this transmitting power.For each roam procedure test, the roaming performance test apparatus all can obtain the actual roaming result of a client according to the access information and the networking state of the client of obtaining; Therefore, the roaming testing equipment can get access to a plurality of actual roaming results by repeatedly obtaining power parameter with after carrying out repeatedly the roam procedure test; A plurality of actual roaming result according to obtaining to roaming stability analysis, obtains the roaming stability result.
In like manner, in technique scheme, the roaming performance test apparatus also can obtain the theory roaming result of each power parameter correspondence at every turn when obtaining power parameter, and each theoretical roaming result of obtaining of storage, promptly among the present invention with each actual roaming as a result corresponding preset roam the result.The roaming performance test apparatus is analyzed the roaming stability result of obtaining by default roaming result after getting access to the roaming stability result, can generate roaming stability result test report.In like manner, this roaming stability result test report can offer the tester with tabular form, carries out subsequent treatment for the tester according to this roaming stability result test report.
Further, in each roam procedure test, under each transmitting power that AC sets for each AP according to power parameter, the roaming performance test apparatus is when obtaining the networking state of client from client, obtain the roaming log information of client simultaneously, and each roaming log information that will obtain stores.This roaming log information recording each step of client roam operation and the result of each step under each transmitting power, for example: begin in roaming, the roaming to switch to another AP, roaming and switch and whether successfully wait from certain AP.When the roaming performance test apparatus gets access to roaming stability result or the report of roaming stability test, the operating result of each step of putting down in writing in the roaming log information in the time of further can testing according to the repeatedly roam procedure of storage is analyzed the factor of influence roaming stability, obtains roaming stability influence parameter; For example when the operation failure of " switching to another AP from certain AP ", tentatively decision problem goes out on AP or AC mutual.This technical scheme is particularly useful for roaming the situation of stability result for the roaming less stable, can analyze the factor that causes roaming poor stability according to the roaming log information, so that network is improved, improves roaming stability.
Wherein, the power parameter in the above embodiment of the present invention is the roaming performance test apparatus and obtains in advance, and following examples of the present invention provide a kind of embodiment of obtaining power parameter in advance.
Embodiment four
The flow chart of the power parameters acquisition method that Fig. 5 provides for the embodiment of the invention four.As shown in Figure 5, the acquisition methods of present embodiment comprises:
Particularly, step 501 comprises following substep:
The initial power of step 5011, setting AP; After test network is put up, for each AP sets initial power, be example with structure shown in Figure 2, be AP24 and AP25 and set initial power respectively, the initial power that preferably sets AP24 and AP25 is identical.
Step 5012, the successively decrease initial power of AP progressively obtain roaming power; For example: the initial power by the AP24 that progressively successively decreases comes simulant-client gradually away from the process of AP24, and the power of the AP24 of correspondence when obtaining client roaming taking place, and promptly roams power.Wherein, can also obtain roaming power according to AP25.
Step 5013, judge initial power and the roaming power difference whether less than default deviation; Particularly, this step is used to judge whether initial power is very approaching with roaming power.If judged result is that then execution in step 5014 less than default deviation; Otherwise then execution in step 5015.
Step 5014, definite roaming power are the power parameter threshold value, and this moment, step 501 finished, to continue execution in step 502; Power when this power parameter threshold value is used for being illustrated in test process generation roaming is so that the roaming performance test apparatus is according to this each power parameter of power parameter threshold setting.
Step 5015, upgrade initial power, and return step 5012 and carry out the initial power that progressively successively decreases after upgrading, obtain roaming power once more and follow-uply wait operation according to roaming power, until the difference of initial power and roaming power less than till presetting deviation.
Particularly, can upgrade initial power according to formula (1) in this step.
S1＝S2+(S1-S2)/2 (1)
Wherein, S1 represents initial power, and S2 represents to roam power.
Below in conjunction with test network shown in Figure 2, illustrate according to power parameter threshold setting power parameter, its result is detailed to be shown in Table 1.Wherein also comprise power parameter corresponding preset roaming result in the table 1.
Table 1
Wherein, Su represents client, and P1 represents the power of AP24, and P2 represents the power of AP25, and N is the power parameter threshold value.Wherein, roam the process of performance test apparatus setting power P1 or power P 2 as can be seen from Table 1, wherein the concrete numerical value of power P 1 and P2 is not done qualification, as long as make power P 1 and P2 satisfy the condition of setting power parameter in the table 1.Based on above-mentioned, the power parameter in the present embodiment can comprise power parameter threshold value N, power P 1 and power P 2 respectively, but is not limited to this.
The power parameters acquisition method that present embodiment provides obtains the power parameter threshold value in conjunction with actual roam procedure, and be that different value is simulated whole roam procedure with the transmitting power that the power parameter threshold value is the boundary by setting AP, the roam procedure of being simulated can guarantee the accuracy to the roaming performance test near actual roam procedure.
Below in conjunction with test network shown in Figure 2, complete, detailed describes technique scheme of the present invention.
Embodiment five
The overall flow figure of the roaming performance test methods that Fig. 6 provides for the embodiment of the invention five.As shown in Figure 6, the method for present embodiment comprises:
Wherein, the principle of radio roaming is mainly: be preset with a signal strength threshold (for example set AP signal strength signal intensity 60% as this signal strength threshold) on the wireless network card of client place PC.When client by behind the AP access network, will detect the signal strength signal intensity of AP every the wireless network card of Preset Time (for example 1 minute) client place PC; If no matter whether the signal strength signal intensity that detects former AP greater than signal strength threshold, then detect new AP, also no matter whether the signal strength signal intensity of detected new AP is greater than the signal strength signal intensity of former AP, and wireless network card can not roamed, still by former AP access network.If the signal strength signal intensity that detects former AP is less than signal strength threshold, though detect new AP, the signal strength signal intensity that needs only new AP is still less than the signal strength signal intensity of former AP, and then wireless network card can not roamed yet, still by former AP access network; If the signal strength signal intensity that detects former AP is less than signal strength threshold, and the signal strength signal intensity of detected new AP is greater than signal strength threshold, and then wireless network card is initiated roaming, and client is finally by new AP access network.
Principle based on above-mentioned radio roaming, the signal strength signal intensity of correspondence and transmitting power and the transmitting power threshold value that signal strength threshold is converted into each AP when roaming is taken place wireless network card, power parameter of mentioning in the various embodiments described above promptly of the present invention and power parameter threshold value.With test network shown in Figure 2 is example: the initial power that AP24 and AP25 are set is identical, is S1; Set client from the AP24 access network, progressively reduce the transmitting power of AP24, and keep the transmitting power of AP25 constant, when record was revised the transmitting power of AP24 at every turn, whether whether client was roamed, promptly by the AP25 access network; If then the transmitting power of record AP24 this moment is promptly roamed power, and is designated as S2; Whether whether the difference of judging initial power S1 and roaming power S2 is less than default deviation, very approaching to judge initial power S1 and roaming power S2; If determine that then roaming power S2 is power parameter threshold value N; Otherwise, upgrade initial power according to above-mentioned formula (1), and change and go execution progressively to reduce initial power S1 and subsequent step, till getting access to satisfactory power parameter threshold value N.When getting access to power parameter threshold value N, set the roam procedure from AP24 to AP25, and the transmitting power of the AP24 of this roam procedure correspondence and AP25; Set the roam procedure to AP24 again by AP25, and the transmitting power of the AP25 of this roam procedure correspondence and AP24.The concrete result of setting knows clearly and is shown in Table 1.
The roaming log information that step 608, basis are obtained from client is analyzed failure cause.
Wherein, the roaming log information can be in this step, to obtain from client, also can be in step 605 with on net state obtain, present embodiment does not limit this.
Wherein, present embodiment provides a kind of example of test report as a result of roaming, and is specifically as shown in table 2.
Table 2
Identical in the above-mentioned table 2 in the meaning of each symbol and the table 1 can be referring to aforementioned explanation.
Wherein, present embodiment to be taking multiple measurements roam procedure, each roam procedure that comprises both direction of measuring, and each roam procedure carries out 4 groups of tests and is example, and obtain following roaming stability result test report, specifically be shown in Table 3.
Table 3
By above-mentioned table 3 as can be seen, as long as the once situation of failure in 1 test process, occurs, can draw this roaming less stable, can carry out the analysis of failure cause by the roaming log information of client, whether have problems with timely discovery roaming function, so that to processing such as network are optimized.
Whether the roaming performance test methods of present embodiment not only can be tested roaming successful, by repeatedly testing the stability that can also obtain roam procedure, and test process does not need the tester removing testing equipment to walk up and down, improved testing efficiency on the one hand, greatly reduce human cost, can also avoid on the other hand because of tester people is the mistake that causes, improve the precision and the accuracy of test.
Embodiment six
The structural representation of the roaming performance test apparatus that Fig. 7 provides for the embodiment of the invention six.As shown in Figure 7, the roaming performance test apparatus of present embodiment comprises: control module 71, roaming detection module 72, online detection module 73 and first be acquisition module 74 as a result.
Wherein, control module 71 is used for sending setting command to AC, so that AC is provided with the generation power of each AP according to setting command, described setting command comprises the power parameter that obtains in advance; Wherein, AC and AP are meant AC and the AP that lays in the test network, and each AP is connected with AC by cable network, unify control and centralized management by AC.
The roaming performance test apparatus of present embodiment, can be used for carrying out the flow process of the roaming performance test methods that the embodiment of the invention provides, send setting command by control module to the AC of control AP, is that different value is simulated roaming scence by AC according to the transmitting power that setting command sets gradually AP, move and need not client, especially do not need the tester to hold client and move around, not only improved the efficient of test roaming performance, also guaranteed the precision of test roaming performance.In addition, by directly obtaining the AP information of client access and the last net state that directly obtains client from client from AC, to obtain actual roaming result's method, only compare with prior art with human eye viewing client-side roaming result, this method can be obtained relevant roaming information immediately and generate actual roaming result from two places of AC and client after roaming, avoided human eye to check the time difference of roaming result mode existence and the error that naked eyes cause.Further, when the roaming performance test apparatus that adopts present embodiment to provide is roamed performance test, do not need to build complicated test network, especially do not need to lay complicated hardware equipment, lower to tester's hardware capabilities requirement, be convenient to implement.
Embodiment seven
The structural representation of the roaming performance test apparatus that Fig. 8 A provides for the embodiment of the invention seven.Present embodiment realizes that based on embodiment six shown in Fig. 8 A, the roaming performance test apparatus of present embodiment also comprises: the first report generation module 75.
The first report generation module 75, with first as a result acquisition module 74 is connected, be used for generating and roaming test report as a result according to the first actual roaming result and the actual roaming corresponding preset roaming as a result result of the client obtained of acquisition module 74 as a result.Particularly, the first report generation module 75 can compare the actual roaming result and the pairing theoretical roaming result of the client that gets access under the transmitting power of setting, to generate roaming test report as a result.Wherein, the roaming form that can tabulate of test report as a result offers the tester, and this roaming a kind of execution mode of test report as a result can be joined and is shown in Table 2.
The roaming performance test apparatus of present embodiment can be used for carrying out the flow process of the roaming performance test methods that the inventive method embodiment provides equally, generate roaming test report as a result by the first report generation module, can make the tester view the roaming result intuitively and easily, greatly improve the efficient of carrying out subsequent treatment according to reality roaming result.
Further, shown in Fig. 8 A, the online detection module 73 of present embodiment also comprises second acquisition unit 732, second acquisition unit 732 is connected with control module 71, be used for according to the order of control module 71 at first acquiring unit 731 when client is obtained the networking state of client, obtain the roaming log information of client.Wherein, each step of roaming log information essential record client roam operation and the result of each step, for example: begin to switch to another AP, roam to switch and whether successfully wait from certain AP in roaming, the roaming; This roaming log information is stored in certain file on the client place terminal (for example personal computer), and therefore, second acquisition unit 732 is as long as can obtain the roaming log information by reading this document content.
Based on technique scheme, shown in Fig. 8 A, the roaming performance test apparatus of present embodiment also comprises performance evaluation module 76.This performance evaluation module 76, respectively with second acquisition unit 732 with first as a result acquisition module 74 and/or first the report generation module 75 be connected, be used for the roaming log information that obtains according to second acquisition unit 732, to present embodiment can the through performance analysis module 76 pairs first roamings that generate of the actual roaming result that obtains of acquisition module 74 and/or the first report generation module 75 as a result as a result test report analyze, obtain influence roaming result's factor, promptly roam the performance impact parameter.When this scheme is particularly useful for the roaming failure, be used to analyze the reason of roaming failure; For example: roaming has been write down when certain AP switches to another AP in the log information and has been failed, then tentatively decision problem go out AP or AC alternately on; If write down the client certificate failure of roaming back in the roaming log information, then can decision problem may go out first-class at certificate server.
In structure shown in Fig. 8 A, acquisition module 74 and the first report generation module 75 are connected to example as a result with first simultaneously with performance evaluation module 76.
Embodiment eight
The structural representation of the roaming performance test apparatus that Fig. 8 B provides for the embodiment of the invention eight.Present embodiment can realize based on embodiment six or embodiment seven, based on Fig. 8 A, the roaming performance test apparatus of present embodiment also comprise judge module 77, second as a result acquisition module 78, obtain trigger module 79 and second and report generation module 80.
Wherein, judge module 77 with first as a result acquisition module 74 be connected, be used for judging first after acquisition module obtains the actual roaming result of client as a result whether the actual roaming result's who obtains number reaches default number threshold value; Wherein, default number threshold value can be represented the number of times that carries out the roam procedure test that sets for the stability of roam procedure is tested.Second acquisition module 78 as a result, be connected with judge module 77, be used for when the number that judge module 77 is judged the actual roaming result who obtains reaches this default number threshold value,, obtaining the roaming stability result according to the default number threshold value of obtaining an actual roaming result.Obtain trigger module 79, be connected with control module 71 with judge module 77 respectively, be used for when the number that judge module 77 is judged the actual roaming result who obtains does not reach this default number threshold value, again obtain power parameter, and trigger control module 71 is carried out to AC transmission setting command, so that AC is provided with the operation of the transmitting power of each AP according to setting command, to begin to the test of roam procedure next time.
Wherein, each actual roaming result is all corresponding to a theoretical roaming result, promptly default roaming result.The second report generation module 80, with second as a result acquisition module 78 is connected, be used for according to the roaming stability result obtained and each actual roaming as a result corresponding preset roam the result, the stability result test report is roamed in generation.
The roaming performance test apparatus of present embodiment, can be used for carrying out the flow process of the roaming performance test methods that the embodiment of the invention provides equally, by judge module, second acquisition module and obtain trigger module etc. and can roam procedure repeatedly be tested as a result, obtain a plurality of actual roaming results, and then according to test and the analysis of a plurality of actual roaming results realization to the stability of roam procedure.Generate roaming stability result test report by the second report generation module, can be convenient to the tester and check, and be convenient to carry out post-treatment operations.
Further, when the roaming performance test apparatus that adopts present embodiment carries out repeatedly the test of roam procedure, in each roam procedure test, also can obtain the roaming log information of client by second acquisition unit 732.And performance evaluation module 76 also can with second as a result acquisition module 78 and/or second the report generation module 80 be connected, the roaming log information that obtains when being used for according to the test of roam procedure is repeatedly analyzed roaming stability result or roaming stability result test report, to obtain the factor of influence roaming stability.This technical scheme is particularly useful for roaming the situation of less stable.
Embodiment nine
The structural representation of the roaming performance test apparatus that Fig. 9 provides for the embodiment of the invention nine.Present embodiment realizes that based on embodiment six, embodiment seven or embodiment eight compare with structure shown in Fig. 8 B, the roaming performance test apparatus of present embodiment also comprises: parameter acquisition module 81 is used for obtaining in advance power parameter.
Further, threshold value is obtained submodule 771 and is specifically comprised: setup unit 7711, acquiring unit 7712, judging unit 7713, determining unit 7714 and upgrade trigger element 7715.Concrete, setup unit 7711 is with the initial power of setting AP; Acquiring unit 7712 is connected with setup unit 7711, is used for progressively successively decreasing initial power, obtains roaming power; Judging unit 7713 is connected with acquiring unit 7712 with setup unit 7711 respectively, is used to judge that whether the difference of initial power and roaming power is less than default deviation; Determining unit 7714 is connected with judging unit 7713, when being used for judged result at judging unit 7713 and being difference less than default deviation, determines that roaming power is the power parameter threshold value; Upgrade trigger element 7715, be connected with acquiring unit 7712 with judging unit 7713 respectively, when being used for judged result at judging unit 7713 and being difference more than or equal to default deviation, upgrade initial power according to roaming power, and trigger acquiring unit 7712 and continue to carry out the initial power that progressively successively decreases, obtain the operation of roaming power.Concrete, the process that above-mentioned each unit obtains the power parameter threshold value can repeat no more referring to the associated description among the inventive method embodiment three herein.
The roaming performance test apparatus that present embodiment provides can be used for carrying out the flow process of the roaming performance test methods that the embodiment of the invention provides equally.Present embodiment passes through parameter acquisition module, obtain the power parameter threshold value in conjunction with actual roam procedure, and be that different value is simulated whole roam procedure with the transmitting power that the power parameter threshold value is the boundary by setting AP, the roam procedure of being simulated can guarantee the accuracy to the roaming performance test near actual roam procedure.
Embodiment ten
The structural representation of the roaming Performance Test System that Figure 10 provides for the embodiment of the invention ten.As shown in figure 10, the system of present embodiment comprises: roaming performance test apparatus 100, AC200, AP300 and client 400.Wherein, roaming performance test apparatus 100 is connected with client 400 with AC200 respectively, and AP300 is connected with client 400 with AC200 respectively.
Wherein, the roaming performance test apparatus that roaming performance test apparatus 100 can adopt the above embodiment of the present invention to provide, its structure and operation principle see the foregoing description for details, and present embodiment repeats no more.
In the present embodiment, AC200 is mainly used in the transmitting power that AP300 is set according to the setting command of roaming performance test apparatus 100, and the access information of client 400 is provided to roaming performance test apparatus 100.Client 400 is mainly used in to roaming performance test apparatus 100 the networking state of client 400 is provided, and information such as roaming daily record.In the system of present embodiment, require to comprise two AP300 at least, be mainly used in the simulation roaming scence.
Need explanation at this, present embodiment only is illustrated the function of AC, AP and client in the roaming test process, can be about AC, AP and the function of client in wireless network referring to prior art, present embodiment is described no longer one by one, but AC, AP in the roaming Performance Test System of present embodiment and client have above-mentioned functions equally.
Wherein, the roaming Performance Test System of present embodiment is applicable to various roaming scences.When being applicable to roaming scence (1), the embodiment of the roaming Performance Test System of present embodiment can be referring to Fig. 2, and can not repeat them here referring to the description of the inventive method embodiment based on the roaming performance test process that test network shown in Figure 2 carries out.
The roaming Performance Test System that present embodiment provides comprises the roaming performance test apparatus, can be used for carrying out the flow process of the roaming performance test methods that the inventive method embodiment provides equally.When performance test is roamed by the system of employing present embodiment, need not client equally and move, can improve the efficient of roaming performance; In addition, by directly obtaining the AP information of client access and the last net state that directly obtains client from client from AC, only compared with human eye viewing client-side roaming result in the past, the error that the time difference that exists in the time of can avoiding human eye to check as a result and naked eyes cause has guaranteed precision and accuracy to the radio roaming performance test.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (16)
1. a roaming performance test methods is characterized in that, comprising:
Send setting command to wireless controller, so that described wireless controller is provided with the transmitting power of each WAP (wireless access point) according to described setting command, described setting command comprises the power parameter that obtains in advance;
Obtain the access information of client from described wireless controller, described access information comprises the wireless access point identification that described client inserts;
Obtain the networking state of described client from described client;
According to the access information of described client and the networking state of described client, obtain the actual roaming result of described client.
2. roaming performance test methods according to claim 1 is characterized in that, also comprises:
According to described actual roaming result who obtains and described actual roaming corresponding preset roaming as a result result, generate roaming test report as a result.
3. roaming performance test methods according to claim 2 is characterized in that, when obtaining the networking state of described client from described client, also comprises the roaming log information that obtains described client;
According to described roaming log information and described roaming test report as a result, obtain roaming performance impact parameter.
4. roaming performance test methods according to claim 1 is characterized in that, also comprises after obtaining the actual roaming result of described client:
Whether the number of judging the described actual roaming result who obtains reaches default number threshold value;
When judged result is the described actual roaming result's that obtains a number when reaching described default number threshold value,, obtain the roaming stability result according to the described default number threshold value of obtaining an actual result that roams;
When judged result is that the described actual roaming result's that obtains number is not when reaching described default number threshold value, again obtain described power parameter, and return execution and send setting command to wireless controller, so that described wireless controller is provided with the operation of the transmitting power of each WAP (wireless access point) according to described setting command.
5. roaming performance test methods according to claim 4 is characterized in that, also comprises:
According to the described roaming stability result of obtaining and each described actual roaming corresponding preset roaming as a result result, generate roaming stability result test report.
6. roaming performance test methods according to claim 5 is characterized in that, when obtaining the networking state of each described power parameter clients corresponding, also comprises: the roaming log information that obtains the described client of each described power parameter correspondence;
According to each described roaming log information and described roaming stability result test report, obtain roaming stability influence parameter.
7. according to each described roaming performance test methods of claim 1-6, it is characterized in that, obtain described power parameter and comprise:
According to the power of described WAP (wireless access point), obtain the power parameter threshold value;
According to the power and the described power parameter threshold value of described WAP (wireless access point), obtain described power parameter.
8. roaming performance test methods according to claim 7 is characterized in that, according to the power of described WAP (wireless access point), obtains the power parameter threshold value and comprises:
Set the initial power of described WAP (wireless access point);
The described initial power that progressively successively decreases obtains roaming power;
Whether the difference of judging described initial power and described roaming power is less than default deviation;
If judged result be described difference less than described default deviation, determine that described roaming power is described power parameter threshold value;
If judged result be described difference more than or equal to described default deviation, upgrade described initial power according to described roaming power, and return the execution described initial power that progressively successively decreases, obtain the operation of roaming power.
9. a roaming performance test apparatus is characterized in that, comprising:
Control module is used for sending setting command to wireless controller, so that described wireless controller is provided with the generation power of each WAP (wireless access point) according to described setting command, described setting command comprises the power parameter that obtains in advance;
Roam detection module, be used for obtaining from described radio network controller the access information of client, described access information comprises the wireless access point identification that described client inserts;
The online detection module comprises first acquiring unit; Described first acquiring unit is used for obtaining from described client the networking state of described client;
First acquisition module as a result is used for obtaining the actual roaming result of described client according to the access information of described client and the networking state of described client.
10. roaming performance test apparatus according to claim 9 is characterized in that, also comprises:
The first report generation module is used for generating roaming test report as a result according to described actual roaming result who obtains and described actual roaming corresponding preset roaming as a result result.
11. roaming performance test apparatus according to claim 10, it is characterized in that, described online detection module also comprises: second acquisition unit is used at described first acquiring unit obtaining the roaming log information of described client when described client is obtained the networking state of described client;
Described roaming performance test apparatus also comprises:
The performance evaluation module is used for obtaining roaming performance impact parameter according to described roaming log information and described roaming test report as a result.
12. roaming performance test apparatus according to claim 9 is characterized in that, also comprises:
Judge module is used for judging described first after acquisition module obtains the actual roaming result of described client as a result whether the described actual roaming result's who obtains number reaches default number threshold value;
Second acquisition module as a result is used for according to the described default number threshold value of obtaining an actual result that roams, obtaining the roaming stability result when the number that described judge module is judged the described actual roaming result who obtains reaches described default number threshold value;
Obtain trigger module, be used for when the number that described judge module is judged the described actual roaming result who obtains does not reach described default number threshold value, again obtain described power parameter, and trigger described control module and carry out to wireless controller transmission setting command, so that described wireless controller is provided with the operation of the transmitting power of each WAP (wireless access point) according to described setting command.
13. roaming performance test apparatus according to claim 12 is characterized in that, also comprises:
The second report generation module is used for generating roaming stability result test report according to the described roaming stability result of obtaining and each described actual roaming corresponding preset roaming as a result result.
14., it is characterized in that also comprise: parameter acquisition module is used to obtain described power parameter according to each described roaming performance test apparatus of claim 9-13;
Described parameter acquisition module comprises:
Threshold value is obtained submodule, is used for the power according to described WAP (wireless access point), obtains the power parameter threshold value;
The parameter acquiring submodule is used for power and described power parameter threshold value according to described WAP (wireless access point), obtains described power parameter.
15. roaming performance test apparatus according to claim 14 is characterized in that, described threshold value is obtained submodule and is comprised:
Setup unit is with the initial power of setting described WAP (wireless access point);
Acquiring unit is used for the described initial power that progressively successively decreases, and obtains roaming power;
Judging unit is used to judge that whether the difference of described initial power and described roaming power is less than default deviation;
Determining unit when being used for judged result at described judging unit and being described difference less than described default deviation, determines that described roaming power is described power parameter threshold value;
Upgrade trigger element, when being used for judged result at described judging unit and being described difference more than or equal to described default deviation, upgrade described initial power according to described roaming power, and trigger described acquiring unit and continue to carry out the described initial power that progressively successively decreases, obtain the operation of roaming power.
16. a roaming Performance Test System that comprises each described roaming performance test apparatus of claim 9-15 is characterized in that, also comprises: wireless controller, WAP (wireless access point) and client;
Described roaming performance test apparatus is connected with client with described wireless controller respectively, and described WAP (wireless access point) is connected with described client with described wireless controller respectively.
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Application publication date: 20110420 |