CN101753211A - A kind of test method and device - Google Patents

Abstract

The embodiment of the present invention discloses a test device, including: a service adaptation module, and a determination module; the service adaptation module is used to convert the downlink data frame output by the module to be tested according to the test data into an uplink data frame, and sending the uplink data frame to the module under test; or, converting the uplink data frame output from the module under test according to the test data into a downlink data frame, and sending the downlink data to the module under test The determination module is used to input test data to the module to be tested, and to: check the processing result of the module to be tested according to the converted uplink data frame or downlink data frame, and determine the The state of the module under test. By converting the uplink data frame or downlink data frame output by the module to be tested and then looping back, it solves the problem of testing devices with different transmission methods of uplink and downlink data frames and inconsistent protocols followed by uplink and downlink data frames.

Description

A kind of test method and device

technical field

The invention relates to the technical field of electronic communication, in particular to a testing method and device.

Background technique

xPON (Passive Optical Network, Passive Optical Network) technology uses optical fiber as the transmission medium, and realizes single-fiber two-way communication through uplink and downlink wavelength division multiplexing; at the same time, it realizes point-to-multiple through downlink broadcast and uplink time division multiplexing technology Click Communications. At present, the xPON technology that is generally optimistic in the industry has two modes: EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network) and GPON (Gigabit-capable Passive Optical Network, Gbit Passive Optical Network). These two modes both adopt the optical transmission mode of single-fiber wavelength division multiplexing, the upstream wavelength is 1310nm, the downstream wavelength is 1490nm, OLT (Optical Line Terminal, optical line terminal) and ONU (Optical Network Unit, optical network unit), and, OLT Single-fiber bidirectional data transmission between ONT (Optical Network Terminal, optical network terminal). As a point-to-multipoint transmission method, in order to separate the signals of multiple users on the same optical fiber, the following two multiplexing technologies are used:

1) The downlink data adopts broadcast technology, and each ONU/ONT only receives its own data.

2) Uplink data adopts time-division multiplexing technology, and each ONU/ONT sends data in a specific allocated time slot.

In addition, in the downstream direction, the passive optical splitter distributes the optical signals from the OLT to each ONU/ONT, and at the same time converges the upstream optical signals of each ONU/ONT to the OLT.

At present, it is a technical problem how to test the equipment that transmits uplink and downlink data in different ways.

Contents of the invention

The embodiment of the present invention provides a test method, which implements the test of devices with different transmission modes of uplink and downlink data through data adaptation.

Embodiments of the invention adopt the following technical solutions:

An embodiment of the present invention provides a test device, including: a business adaptation module, and a determination module;

The service adaptation module is used to convert the downlink data frame output by the module under test into an uplink data frame according to the test data, and send the uplink data frame to the module under test; converting the uplink data frame output according to the test data into a downlink data frame, and sending the downlink data to the module to be tested;

A determination module, configured to input test data to the module to be tested, and check the processing result of the module to be tested according to the converted uplink data frame or downlink data frame, and determine the Check the status of the module.

Embodiments of the present invention also provide a test device, including: a conversion module, a judgment module, and a loopback module;

The loopback module is configured to obtain the downlink data frame or uplink data frame at at least two different positions on the transmission line of the downlink data frame or uplink data frame output by the module under test according to the test data, and Sending the obtained at least two downlink data frames or uplink data frames to the conversion module;

The converting module is configured to convert the at least two downlink data frames into uplink data frames, and send the uplink data frames to the module to be tested; or, convert the at least two uplink data frames, Converting to a downlink data frame, and sending the downlink data frame to the module to be tested;

A judging module, configured to input test data to the module under test, and according to: at least two processing results obtained by processing the module under test according to the at least two converted uplink data frames or downlink data frames respectively , to determine the location of the fault.

Embodiments of the present invention also provide a test method, including:

Input test data to the module under test;

Converting the downlink data frame output by the module to be tested according to the test data into an uplink data frame, and sending the uplink data frame to the module to be tested; Uplink data frames are converted into downlink data frames, and the downlink data frames are sent to the module to be tested;

Checking the module under test according to the processing result of the converted uplink data frame or downlink data frame to determine the state of the module under test.

The above technical solution has the following advantages:

In the embodiment of the present invention, the loopback test of the module to be tested is realized by converting the uplink data frame or the downlink data frame output by the module to be tested and then looping back, which solves the problem of different transmission methods of the uplink and downlink data frames , the problem of testing devices whose protocols the uplink and downlink data frames follow are not uniform.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the schematic diagram of Embodiment 1 of a kind of test device of the present invention;

Fig. 2 is the schematic diagram of embodiment 2 of a kind of test device of the present invention;

3 is a schematic diagram of a loopback module in Embodiment 2 of a test device of the present invention;

4 is a schematic diagram of a first forwarding module and a second route selector in Embodiment 2 of a test device of the present invention;

FIG. 5 is a schematic diagram of a service adaptation module or a conversion module in an embodiment of a test device of the present invention;

Fig. 6 is the schematic diagram of the construction module in the embodiment of a kind of test device of the present invention;

FIG. 7 is a schematic diagram of a service adaptation module or conversion module in an embodiment of a test device of the present invention;

Fig. 8 is the schematic diagram of the embodiment of a kind of test method of the present invention;

Fig. 9 is the schematic diagram of step 12 in the embodiment of a kind of test method of the present invention;

FIG. 10 is a schematic diagram of step 122 in an embodiment of a testing method of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in FIG. 1 , the present invention provides a first embodiment of a test device, including: a business adaptation module 11, and a determination module 12;

The service adaptation module 11 is used to convert the downlink data frame outputted by the module to be tested into an uplink data frame according to the test data, and send the uplink data frame to the module to be tested; The module converts the uplink data frame outputted by the test data into a downlink data frame, and sends the downlink data to the module to be tested;

The determination module 12 is used to input test data to the module to be tested, and check the processing result of the module to be tested according to the converted uplink data frame or downlink data frame, and determine the The state of the module under test.

Wherein, the module to be tested is a module that uses a multipoint protocol to transmit data, such as an ONU, or ONT, or OLT; the uplink data frame can be a data frame sent from the ONU/ONT to the OLT; the downlink data frame The frame may be a data frame sent from the OLT to the ONU/ONT.

By setting the business adaptation module, the uplink data frame output by the module to be tested is converted into a downlink data frame and then looped back to the module to be tested, and the module to be tested can be determined by checking the processing result of the downlink data frame by the module to be tested For example, if it is found that the processing result of the module under test for the downlink data frame is inconsistent with the correct result, it can be determined that the module under test is faulty. Similarly, the business adaptation module can convert the downlink data frame output by the module to be tested into an uplink data frame and loop it back to the module to be tested. By checking the processing result of the uplink data frame by the module to be tested, it can determine the The state of the module. In this way, through the conversion of the uplink and downlink data frames, the loopback of the test data is realized, thereby realizing the loopback test of the module to be tested, and solving the problem that the uplink and downlink data frames are transmitted in different ways, and the protocols followed by the uplink and downlink data frames are not uniform The problem with the testing of the equipment.

Further, the test data may be business data currently being processed by the module to be tested. When the module to be tested is in the working state of processing business, the business data generated by the module to be tested is output to the outside, and the business adaptation module does not work; when the module to be tested is in the state of being tested, the business adaptation module generates The uplink data frame or downlink data frame is converted and looped back. By performing the test during the interval of normal operation of the module to be tested, the test time is saved, which is convenient and simple.

Wherein, the test device can be integrated with the module to be tested, for example: if the module to be tested is an OLT, the test device can be set on an OLT MAC (Medium Access Control, Media Access Control) chip, if the module to be tested is ONU, the test device can be set on the ONU MAC chip. In addition, a part of the test device, such as a service adaptation module, can also be integrated with the module to be tested.

Referring to Fig. 2, the implementation example 2 of the test device of the present invention applied in the xPON system, the test device includes the conversion module 21, the judgment module 22, and the loopback module 23;

The loopback module 23 is configured to obtain the downlink data frame or uplink data frame at at least two different positions on the transmission line of the downlink data frame or uplink data frame output by the module under test according to the test data, and sending the obtained at least two downlink data frames or uplink data frames to the conversion module;

The conversion module 21 is configured to convert the at least two downlink data frames into uplink data frames, and send the uplink data frames to the module to be tested; or, convert the at least two uplink data frames , converting it into a downlink data frame, and sending the downlink data frame to the module to be tested;

The judging module 22 is configured to input test data to the module to be tested, and according to at least two processes obtained by processing the module to be tested according to the at least two converted uplink data frames or downlink data frames respectively. As a result, the location of the fault is determined.

Referring to Fig. 3, when the module to be tested is an OLT, the loopback module can specifically include all of the following modules or a combination of at least two forwarding modules:

A first forwarding module, configured to forward the downlink data frame output from the OLT to the conversion module;

The second forwarding module is used to forward the downlink data frame output by the optical module close to the OLT to the conversion module;

A third forwarding module, configured to forward the downlink data frame output by the optical splitter to the converting module;

The fourth forwarding module is configured to forward the downlink data frame output by the optical module close to the ONU to the converting module.

Wherein, the first forwarding module can be integrated with the OLT on an OLT MAC (MAC: Medium Access Control, medium access control) chip.

Wherein, the optical module refers to a module for converting optical signals and electrical signals; the optical splitter is a passive optical splitter for distributing optical signals of downlink data frames of downlink broadcasts to different branches.

In the case where the loopback module includes a first forwarding module and a second forwarding module, the judgment module is specifically configured to convert the downlink data frame forwarded from the first forwarding module to the conversion module by the conversion module , and after the processing of the OLT, the processing result is obtained, and the processing result is correct, and, after the downlink data frame forwarded from the second forwarding module to the conversion module is converted by the conversion module and processed by the OLT, it is obtained The processing result, when the processing result is incorrect, it is determined that there is a fault between the first forwarding module and the second forwarding module.

The determination that there is a fault between the first forwarding module and the second forwarding module can be understood as: an optical module close to the OLT, or a transmission line between the first forwarding module and an optical module close to the OLT, or a transmission line close to the OLT The transmission line between the optical module and the second forwarding module is faulty.

In the case where the loopback module includes a second forwarding module and a third forwarding module, the judgment module is specifically configured to convert the downlink data frame forwarded from the second forwarding module to the conversion module by the conversion module , and after the processing of the OLT, a processing result is obtained, and the processing result is correct, and, after the downlink data frame forwarded from the third forwarding module to the conversion module is converted by the conversion module and processed by the module to be tested , to obtain a processing result, and when the processing result is incorrect, it is determined that there is a fault between the second forwarding module and the third forwarding module.

In the case where the loopback module includes a first forwarding module and a fourth forwarding module, the judgment module is specifically configured to convert the downlink data frame forwarded from the first forwarding module to the conversion module by the conversion module , and after the processing of the OLT, a processing result is obtained, the processing result is correct, and, after the downlink data frame forwarded from the fourth forwarding module to the conversion module is converted by the conversion module and processed by the module to be tested , to obtain a processing result, and when the processing result is incorrect, it is determined that there is a fault between the first forwarding module and the fourth forwarding module.

In the case where the loopback module includes other combinations of forwarding modules, it is similar and will not be described again.

When the module to be tested is an ONU, the situation is similar and will not be repeated here.

Referring to FIG. 4, in the second embodiment of the test device, the first forwarding module may specifically include a first router 131, and the test device may further include a second router 132,

The first route selector 131 is used to gate the channel to the ONU or ONT when the OLT is running a normal service, and send the downlink data frame from the OLT to the ONU or ONT, and, when the OLT is in a test state, select The channel leading to the transmission line of the downlink data frame output by the OLT is coupled with the downlink data frame output by the OLT, thereby obtaining the downlink data frame output by the OLT, and sending the downlink data frame output by the OLT to The conversion module sends; and, when the OLT is in the test state and the second route selector gates to the channel of the first route selector, selects the channel communicated with the second route selector, and receives the second route selector's a downlink data frame, and send the downlink data frame to the conversion module;

The second route selector 132 is used to gate the channel to the first route selector when the OLT is in the test state, and transfer the channel from the second forwarding module, or the third forwarding module, or the fourth forwarding module to the The downlink data frame sent by the conversion module is forwarded to the first router 131; and, when the OLT is operating normally, the channel to the OLT is selected, and the uplink data frame from the ONU or ONT is sent to the OLT.

Wherein, the second route selector can be integrated with the OLT on the OLT MAC chip.

In the first and second embodiments of the test device, the service adaptation module 11 or the conversion module 21 may specifically include an ONU MAC chip.

In addition, when testing multiple modules to be tested, the multiple modules to be tested can share a business adaptation module or conversion module, thus reducing the testing cost.

Referring to Fig. 5, in the first embodiment and the second embodiment of the test device, in the case that the module to be tested is an OLT, the service adaptation module or conversion module may specifically include:

An extraction module 111, configured to obtain a downlink data frame, and extract the payload of the downlink data frame;

The construction module 112 is configured to construct an uplink data frame that carries the payload and can be identified by the OLT according to the multipoint protocol standard, and sends the uplink data frame to the OLT.

Wherein, the multipoint protocol standard includes the G.984.x protocol standard or the IEEE-802.3ah protocol standard.

G.984.x protocol standard refers to: SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital sections and digital line system-Optical line systems for local and access networks Gigabit-capable Passive OpticalNetworks (GPON);

Translated into Chinese as: transmission system and medium - digital system and network - digital part and digital line system - optical line system of local access network gigabit passive optical network (G-PON).

IEEE-802.3ah协议标准是指：IEEE Standard for Information technologyTelecommunications and information exchange between systems Local andmetropolitan area networks Specific requirements Part 3：Carrier Sense Multiple Accesswith Collision Detection(CSMA/CD)Access Method and Physical LayerSpecifications Amendment：Media Access Control Parameters , Physical Layers, and Management Parameters for Subscriber Access Networks;

Translated into Chinese as: Information Technology - Intersystem Communication and Information Exchange - Specific Requirements for Local Area Networks and Metropolitan Area Networks - Part 3: CSMA/CD Access Modes and Physical Layer Specifications - Supplementary Documents: Media Interfaces for User Access Networks Input control parameters, physical layer and management parameters.

Further, referring to FIG. 6, the construction module may specifically include:

The frame header information construction module 1121 is used to act as an ONU or ONT according to the multi-point protocol standard, obtain the construction information by interacting with the information of the OLT, and construct the frame header information of the uplink data frame according to the construction information, or, according to The multipoint protocol standard and the preset construction information construct the frame header information of the uplink data frame. Wherein, the configuration information may include one or more of the following information: terminal identification information, message fields, bandwidth status information, and data frame format information;

A sending module 1122, configured to compose the payload and the frame header information into an uplink data frame and send it to the OLT.

Wherein, the terminal identification information includes an ONU terminal ID, or SN (Serial Number, serial number), and the ONU terminal ID or SN can act as an ONU according to a multipoint protocol standard, and through information interaction with the OLT, the OLT Or, according to the multipoint protocol standard, the ONU terminal ID or SN that can be recognized by the OLT can also be preset.

The message field is a field for negotiating or exchanging information between the ONU and the OLT in the multipoint protocol standard, such as: handshake messages, or alarm messages, or terminal status information, or information about measuring the distance between the ONU and a certain location information etc.

The bandwidth status information refers to the uplink bandwidth status information, which can be obtained through information interaction with the OLT by acting as an ONU according to the multipoint protocol standard, or pre-set the bandwidth that the OLT can recognize according to the multipoint protocol standard status information;

The data frame format information, including preamble, preamble, delimiter, check information, etc., can be pre-set according to the multipoint protocol standard, or can also be dynamically generated according to the multipoint protocol standard.

In addition, referring to FIG. 7, the conversion may further include a storage module;

The storage module 113 is configured to store the configuration information preset according to the multipoint protocol standard.

Referring to Fig. 8, the present invention also provides an embodiment of a test method, including:

Step 11, input test data to the module to be tested;

Step 12, converting the downlink data frame outputted by the module to be tested according to the test data into an uplink data frame, and sending the uplink data frame to the module to be tested; The uplink data frame of the data output is converted into a downlink data frame, and the downlink data frame is sent to the module to be tested;

Step 13: Check the module under test according to the processed processing result of the converted uplink data frame or downlink data frame, and determine the status of the module under test.

By converting the uplink data frame or downlink data frame output by the module to be tested and looping back, the loopback test of the module to be tested is realized, and the method of transmitting the uplink and downlink data frames is different, and the protocol followed by the uplink and downlink data frames The problem with the testing of non-uniform devices.

Referring to Fig. 9, in the case where the module to be tested is an OLT, the step 12 specifically includes:

Step 121, obtaining a downlink data frame, and extracting the payload of the downlink data frame;

Step 122: Construct an uplink data frame carrying the payload according to the multipoint protocol standard and that can be identified by the OLT, and send the uplink data frame to the OLT.

Referring to Fig. 10, wherein, the step 122 may specifically include:

Step 1221, according to the multipoint protocol standard, pretending to be an ONU or ONT, through information interaction with the OLT, to obtain configuration information, and construct the frame header information of the uplink data frame according to the configuration information, or, according to the multipoint protocol standard, and The preset construction information is used to construct the frame header information of the uplink data frame. Wherein, the configuration information may include one or more of the following information: terminal identification information, message fields, bandwidth status information, and data frame format information;

Step 1222, compose the payload information and the frame header information into an uplink data frame and send it.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in a computer-readable storage medium. During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM), etc.

The above descriptions are only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the present invention according to the disclosure of the application documents without departing from the spirit and scope of the present invention.

Claims (18)

1. A test device, characterized in that, comprising: a business adaptation module, and a determination module; The service adaptation module is used to convert the downlink data frame output by the module under test into an uplink data frame according to the test data, and send the uplink data frame to the module under test; converting the uplink data frame output according to the test data into a downlink data frame, and sending the downlink data to the module to be tested; A determination module, configured to input test data to the module to be tested, and check the processing result of the module to be tested according to the converted uplink data frame or downlink data frame, and determine the Check the status of the module. 2. The test device according to claim 1, wherein, when the module to be tested is an OLT, the service adaptation module specifically includes: An extraction module, configured to obtain a downlink data frame, and extract the payload of the downlink data frame; The construction module is configured to construct an uplink data frame that carries the payload according to the multipoint protocol standard and that can also be identified by the OLT, and sends the uplink data frame to the OLT. 3. The test device according to claim 2, characterized in that, the construction module specifically comprises: The frame header information construction module is used to pretend to be an ONU or ONT according to the multi-point protocol standard, obtain the construction information through the information interaction with the OLT, and construct the frame header information of the uplink data frame according to the construction information, or, according to the multiple Point protocol standard, as well as preset construction information, to construct the frame header information of the uplink data frame. A sending module, configured to compose the payload and the frame header information into an uplink data frame and send it to the OLT. 4. A test device, characterized in that, comprising: a conversion module, a judgment module, and a loopback module; The loopback module is configured to obtain the downlink data frame or uplink data frame at at least two different positions on the transmission line of the downlink data frame or uplink data frame output by the module under test according to the test data, and Sending the obtained at least two downlink data frames or uplink data frames to the conversion module; The converting module is configured to convert the at least two downlink data frames into uplink data frames, and send the uplink data frames to the module to be tested; or, convert the at least two uplink data frames, Converting to a downlink data frame, and sending the downlink data frame to the module to be tested; A judging module, configured to input test data to the module under test, and according to: at least two processing results obtained by processing the module under test according to the at least two converted uplink data frames or downlink data frames respectively , to determine the location of the fault. 5. test device according to claim 4, is characterized in that, when module to be tested is OLT, described loopback module specifically comprises the combination of all or at least two forwarding modules of following modules: A first forwarding module, configured to forward the downlink data frame output from the OLT to the conversion module; The second forwarding module is used to forward the downlink data frame output by the optical module close to the OLT to the conversion module; A third forwarding module, configured to forward the downlink data frame output by the optical splitter to the converting module; The fourth forwarding module is configured to forward the downlink data frame output by the optical module close to the ONU to the converting module. 6. The testing device according to claim 5, characterized in that, the first forwarding module is integrated with the OLT on the OLT MAC chip. 7. The test device according to claim 5, characterized in that, In the case where the loopback module includes a first forwarding module and a second forwarding module, the judgment module is specifically configured to convert the downlink data frame forwarded from the first forwarding module to the conversion module by the conversion module , and after the processing of the OLT, the processing result is obtained, and the processing result is correct, and, after the downlink data frame forwarded from the second forwarding module to the conversion module is converted by the conversion module and processed by the OLT, it is obtained The processing result, when the processing result is incorrect, it is determined that there is a fault between the first forwarding module and the second forwarding module. 8. The test device according to claim 5, wherein, in the case where the loopback module includes a first forwarding module and a fourth forwarding module, the judging module is specifically used to forward the forwarding module from the first forwarding module The downlink data frame to the conversion module is converted by the conversion module and processed by the OLT to obtain a processing result, the processing result is correct, and the downlink data forwarded from the fourth forwarding module to the conversion module After the frames are converted by the conversion module and processed by the module to be tested, a processing result is obtained. If the processing result is incorrect, it is determined that there is a fault between the first forwarding module and the fourth forwarding module. 9. The test device according to claim 5, wherein the first forwarding module specifically comprises a first router, and the test device further comprises a second router, The first route selector is used to gate the channel to the ONU or ONT when the OLT is running normal services, and send the downlink data frame from the OLT to the ONU or ONT, and, when the OLT is in a test state, gate The channel to the transmission line of the downlink data frame output by the OLT is coupled with the downlink data frame output by the OLT, thereby obtaining the downlink data frame output by the OLT, and sending the downlink data frame output by the OLT to the and, when the OLT is in the test state and the second route selector gates to the channel of the first route selector, gate the channel connected with the second route selector, and receive the downlink of the second route selector data frame, and send the downlink data frame to the conversion module; The second route selector is used to gate the channel to the first route selector when the OLT is in the test state, and switch from the second forwarding module, or the third forwarding module, or the fourth forwarding module to the The downlink data frame sent by the module is forwarded to the first router; and, when the OLT is operating normally, the channel to the OLT is selected, and the uplink data frame from the ONU or ONT is sent to the OLT. 10. The testing device according to claim 9, characterized in that, the second router and the OLT are integrated on the OLT MAC chip. 11. The test device according to claim 4, wherein, in the case where the module to be tested is an OLT, the conversion module specifically includes: An extraction module, configured to obtain a downlink data frame, and extract the payload of the downlink data frame; The construction module is configured to construct an uplink data frame that carries the payload according to the multipoint protocol standard and that can also be identified by the OLT, and sends the uplink data frame to the OLT. 12. The test device according to claim 11, wherein the construction module specifically comprises: The frame header information construction module is used to pretend to be an ONU or ONT according to the multi-point protocol standard, obtain the construction information through the information interaction with the OLT, and construct the frame header information of the uplink data frame according to the construction information, or, according to the multiple Point protocol standard, and preset construction information, to construct the frame header information of the uplink data frame; A sending module, configured to compose the payload and the frame header information into an uplink data frame and send it to the OLT. 13. The test device according to claim 11, wherein the conversion module further comprises a storage module; The storage module is configured to store the configuration information preset according to the multipoint protocol standard. 14. A test system, comprising a test device, and a module to be tested, the module to be tested is a module that uses a multipoint protocol to transmit data, and the test device is the test device described in any one of claims 1 to 13 device. 15. The testing system according to claim 14, wherein the testing device is integrated with the module to be tested. 16. A test method, characterized in that, comprising: Input test data to the module under test; Converting the downlink data frame output by the module to be tested according to the test data into an uplink data frame, and sending the uplink data frame to the module to be tested; Uplink data frames are converted into downlink data frames, and the downlink data frames are sent to the module to be tested; Checking the module under test according to the processing result of the converted uplink data frame or downlink data frame to determine the state of the module under test. 17. The test method according to claim 16, wherein, in the case that the module to be tested is an OLT, the downlink data frame output by the module to be tested according to the test data is converted into an uplink data frame, and Send the uplink data frame to the module under test; or convert the uplink data frame output from the module under test according to the test data into a downlink data frame, and send the downlink data frame to the under test Module sending; specifically includes: Obtain a downlink data frame, and extract the payload of the downlink data frame; According to the multipoint protocol standard, construct an uplink data frame that carries the payload and can also be recognized by the OLT, and send the uplink data frame to the OLT. 18. The test method according to claim 17, characterized in that, according to the multi-point protocol standard, construct an uplink data frame that carries the payload and can be identified by the OLT, and send the uplink data frame to the OLT sending, including: According to the multi-point protocol standard, act as an ONU or ONT, obtain the structure information through information interaction with the OLT, and construct the frame header information of the uplink data frame according to the structure information, or, according to the multi-point protocol standard, and preset Construction information, constructing the frame header information of the uplink data frame. Wherein, the configuration information includes one or more of the following information: terminal identification information, message fields, bandwidth status information, and data frame format information; Composing the payload information and the frame header information into an uplink data frame and sending it.

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