WO2017000857A1

WO2017000857A1 - Method and apparatus for testing packet optical transport network board

Info

Publication number: WO2017000857A1
Application number: PCT/CN2016/087293
Authority: WO
Inventors: 殷少戈; 董建全; 李荆晶; 赵丽娜; 宗辉
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-06-30
Filing date: 2016-06-27
Publication date: 2017-01-05
Also published as: CN106330590A; CN106330590B

Abstract

Disclosed are a method and apparatus for testing a packet optical transport network board. The method comprises: when receiving a packet sent by a network processing chip, a framing chip sends the received packet to a photoelectric module, and the photoelectric module feeds back the packet having undergone a first loopback test conducted by using a fiber interface of the photoelectric module, to the framing chip; when receiving the packet fed back by the photoelectric module, the framing chip sends the received packet to a switch chip, and the switch chip conducts a second loopback test on the packet in a path on a back board side of the switch board; and when receiving the packet fed back by the switch chip, the framing chip sends the packet to the network processing chip, and the network processing chip conducts a third loopback test on the packet in the path on the back board side of the switch chip. By means of the foregoing solutions, efficiency in testing a packet optical transport network board is improved.

Description

Method and apparatus for testing packet optical transport network boards

Technical field

The present application relates to, but is not limited to, the field of communication technologies, and in particular, to a method and apparatus for testing a packet optical transport network board.

Background technique

In the field of communication technology, the transmission network mainly includes a PTN (PTN Packet Transport Network), an OTN (Optical Transport Network), an MSTP (Multi-Service Transfer Platform), and an SDH-based multi-service transmission platform. A POTN (Packet Optical Transport Network) in which PTN and OTN are fused.

With the rapid development of the electronic communication products, the requirements for the testing of the various boards are also increased. When the POTN boards of the related technologies are tested on the POTN board, the POTN boards are almost always inside the POTN board. The PTN service and the OTN service are respectively tested, that is, divided into two test processes: the framing chip sends the data packet fed back by the optoelectronic module to the network processing chip, and the framing chip sends the data packet to the switch chip, and respectively tests The PTN service and the OTN service increase the test time, making the POTN board test inefficient.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The main purpose of the present application is to provide a method and apparatus for testing a packet optical transport network board, which aims to solve the technical problem of low efficiency when testing a packet optical transport network board.

To achieve the above objective, the method for testing a packet optical transport network board provided by the present application includes the following steps:

Upon receiving the data packet sent by the network processing chip, the framing chip sends the received data packet to the optoelectronic module, so that the optoelectronic module feeds back the light to the framing chip The fiber optic interface of the electrical module performs the data packet of the first loopback test;

Receiving the data packet fed back by the optoelectronic module, the framing chip transmitting the received data packet to the switch chip, so that the switch chip passes the data packet on the backplane side of the switch chip The path performs a second loopback test, and the framing chip receives the data packet that is subjected to the second loopback test feedback through the path on the backplane side of the switch chip;

Receiving, by the framing chip, the data packet to the network processing chip when receiving the data packet fed back by the switch chip, the network processing chip passing the data packet through the back of the switch chip The path on the board side performs a third loopback test, and receives a data packet from the switch chip for performing a third loopback test through a path on the backplane side of the switch chip.

Optionally, the data packet is sent by the other packet optical transport network board to the network processing chip via a path on the backplane side of its switch chip.

Optionally, the method for testing a packet optical transport network board further includes:

The framing chip outputs an alarm message if the packet abnormality in which the loopback test is performed is detected.

Optionally, when the packet optical transport network board is connected to the display terminal, the step of outputting the alarm information by the framing chip includes:

The packet optical transport network board sends the alarm information to the display terminal, so that the display terminal displays the current circulation status of the packet optical transport network board.

The application further provides a computer readable storage medium storing computer executable instructions that are implemented when the computer executable instructions are executed.

In addition, in order to achieve the above object, the present application further provides an apparatus for testing a packet optical transport network board, and the apparatus for testing a packet optical transport network board includes:

The first sending module is configured to: when receiving the data packet sent by the network processing chip, send the received data packet to the optoelectronic module, so that the optoelectronic module feeds back to the framing chip through the optoelectronic device The fiber optic interface of the module performs the data packet of the first loopback test;

a second sending module, configured to: when receiving the data packet fed back by the optoelectronic module, the framing chip sends the received data packet to the switch chip, where the switch chip uses the data packet Performing a second loopback test on a path on the backplane side of the switch chip, and the framing chip receives the second loopback test feedback through a path on the backplane side of the switch chip data pack;

a third sending module, configured to: when receiving a data packet fed back by the switch chip, send the data packet to the network processing chip, where the network processing chip passes the data packet in the switch chip The path on the backplane side performs a third loopback test, and receives a data packet from the switch chip for a third loopback test through a path on the backplane side of the switch chip.

Optionally, the device for testing the packet optical transport network board further includes:

The output module is configured to cause the framing chip to output alarm information if the packet abnormality in which the loopback test is performed is detected.

Optionally, the output module includes a sending unit, and the sending unit is configured to send the alarm information to the display terminal when the packet optical transport network board is connected to the display terminal, so that the display terminal displays the grouping The current circulation status of the optical transport network board.

The present application proposes a method and apparatus for testing a packet optical transport network board, the method comprising: the framing chip transmitting a data packet fed back by the optoelectronic module to the switch chip, wherein the data packet passes through the path of the switch chip on the side of the backplane After performing the second loopback test, the framing chip is fed back to the framing chip, and then the framing chip sends the data packet to the network processing chip, so that the network processing chip processes the data packet, thereby The framing chip, the switch chip, the network processing chip, and the optoelectronic module in the packet optical transport network board are tested, instead of dividing the process of testing the packet optical transport network board into a framing chip to feed back the data packet of the optoelectronic module. The process of sending the packet to the network processing chip and the framing chip to send the data packet to the switch chip reduces the time in the process of testing the packet optical transport network board, thereby improving the test packet optical transport network board. effectiveness.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a flowchart of a method for testing a packet optical transport network board in the first embodiment of the present application;

2 is a block diagram of an apparatus for testing a packet optical transport network board of the present application in a first embodiment thereof.

The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings.

Preferred embodiment of the invention

It is understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting.

The present application provides a method for testing a packet optical transport network board.

Referring to FIG. 1, FIG. 1 is a flowchart of a method for testing a packet optical transport network board in the first embodiment of the present application.

The method for testing a packet optical transport network board according to this embodiment includes:

Step S10, when receiving the data packet sent by the network processing chip, the framing chip sends the received data packet to the optoelectronic module, and the optoelectronic module feeds back the optical fiber passing through the optoelectronic module to the framing chip. The data packet of the first loopback test performed by the interface;

In this step, the method for testing the packet optical transport network board includes the internal testing of the packet optical transport network board and the packet optical transport network board and the other packet optical transport network boards for bidirectional testing, testing the packet optical transport network board The method is different, and the manner in which the framing chip sends data packets to the optoelectronic module is also different. When performing the internal testing of the packet optical transport network board, the framing chip sends the preset data packet to the optoelectronic module; when the packet optical transport network board performs the bidirectional with the other packet optical transport network boards During the test, the framing chip receives the data packet sent by the network processing chip, and then sends the received data packet to the optoelectronic module. Here, in the photovoltaic module, the optical signal received through the optical fiber interface of the photovoltaic module is converted into an electrical signal according to the photoelectric effect.

In this step, when detecting the path inside the packet optical transport network board, the network processing chip sends the data packet to the framing chip, and when the framing chip receives the data packet sent by the network processing chip, Receiving the data packet and sending it to the photoelectric module, so that the photoelectric module passes The optical fiber interface performs a first loopback test on the data packet, and after performing the first loopback test, feeds the data packet to the framing chip.

Step S20, when receiving the data packet fed back by the optoelectronic module, the framing chip sends the received data packet to the switch chip, where the switch chip passes the backplane of the switch chip with the data packet The side path performs a loopback test, and the framing chip receives the data packet that is subjected to the second loopback test feedback through the path on the backplane side of the switch chip;

In this step, upon receiving the data packet fed back by the optoelectronic module, the framing chip sends the received data packet to the switch chip, and the switch chip passes the data packet in the exchange Performing a second loopback test on the path of the backplane side of the chip, and transmitting the data packet that is subjected to the second loopback test feedback on the path of the backplane side of the switch chip to the framing chip, In the board test method of the related art, when the framing chip sends a data packet to the optoelectronic module, the first loopback test is performed by the optoelectronic module, and then fed back to the framing chip, and then the framing chip sends the data packet to the switch chip. After the second loopback test is performed on the path of the backplane side of the switch chip, it is received by the framing chip. It can be seen that in the testing method of the related art, the process of detecting the photoelectric module and the switching chip by the framing chip can only detect one side first, and can detect the photoelectric module after detecting one of the photoelectric module and the switching chip. And the other one of the switch chips, it is obvious that the transmission quality of the path of the packet optical transport network board cannot be detected, and therefore, the internal function of the framing chip cannot be detected. The present application detects the interior of the framing chip by detecting the connected framing chip channels. Moreover, when the framing chip and the optoelectronic module of the related art, and the framing chip and the switch chip perform the loopback test at the same time, the clock oscillation is easily caused, and the path detection of the packet optical transport network board is unstable, and the present application passes the framing chip. The data packet is sent to the network processing chip via the optoelectronic module and the switch chip, which avoids clock oscillation and more stably detects the packet optical transport network board.

Step S30, when receiving the data packet fed back by the switch chip, the framing chip sends the data packet to a network processing chip, and the network processing chip passes the data packet through the backplane of the switch chip. The side path performs a third loopback test and receives a data packet from the switch chip for a third loopback test through a path on the backplane side of the switch chip.

In this step, when receiving the data packet fed back by the switch chip, the framing chip sends the data packet to the network processing chip, and the network processing chip sends the data packet to the The chip is switched to detect the path between the network processing chip and the framing chip and the switching chip. Place The network processing chip sends the data packet to the switch chip, and the data packet is looped back through the path on the backplane side of the switch chip to detect the path of the network processing chip.

The method for testing a packet optical transport network board according to the embodiment, the framing chip sends the data packet fed back by the optoelectronic module to the switch chip, and the data packet is subjected to the second loopback by the switch chip through the path on the backplane side thereof. After the test, the framing chip is fed back to the framing chip, and then the framing chip sends the data packet to the network processing chip, so that the network processing chip processes the data packet, thereby The framing chip, the switch chip, the network processing chip, and the optoelectronic module in the board are tested, instead of dividing the process of testing the packet optical transport network board into a framing chip, and transmitting the data packet fed back by the optoelectronic module to the network processing chip. And the framing chip sends the data packet to the switch chip, which reduces the time in testing the packet optical transport network board, thereby improving the efficiency of testing the packet optical transport network board.

Optionally, in order to test the packet optical transport network board more flexibly, the data packet is sent to the network processing chip via a path on the backplane side of its switch chip by other packet optical transport network boards.

When testing the path between the packet optical transport network board and the other packet optical transport network boards, that is, the data packet is routed by other packet optical transport network boards via the path on the backplane side of the switch chip. When the data packet sent by the optical transport network board is transmitted, the framing chip receives the data packet sent by the other packet optical transport network board through the network processing chip.

And the data packet is sent to the network processing chip of the packet optical transport network board by a path of the other packet optical transport network board on the backplane side of the switch chip of the packet optical transport network board, and then, The network processing chip sends the data packet to the framing chip, and the framing chip sends the received data packet to the optoelectronic module, and the optoelectronic module feeds back the data packet for performing the first loopback test, and receives the data packet. When the optoelectronic module feeds back the data packet, the framing chip sends the received data packet to the switch chip, and the switch chip passes the data packet to the second loopback test on the path on the backplane side thereof. Transmitting the data packet to the framing chip, and the framing chip sends the data packet to the network processing chip, where the network processing chip passes the path of the data packet on the backplane side of the switch chip. The three loopback tests are sent by the network processing chip to other packet optical transport network boards.

In this embodiment, when the framing chip receives the data packet fed back by the switch chip, Sending the data packet to the network processing chip. At this time, the network processing chip sends the data packet to the switch chip, and the switch chip passes through the back of the switch chip of the packet optical transport network board to which it belongs. The path on the board side sends the data packet to other packet optical transport network boards.

Optionally, in order to test the packet optical transport network board more flexibly, the second embodiment of the method for testing the packet optical transport network board of the present application is proposed based on the first embodiment. In this embodiment, the test packet light is The method for transmitting a network board further includes:

The framing chip outputs an alarm message if the packet abnormality in which the corresponding loopback test is performed is detected.

In this embodiment, during the data packet transmission process, the framing chip detects an abnormality of the data packet, such as a packet loss, a frame format error, or a data packet is not circulated, according to the detection. The result is to find the path where the current data packet is located, and analyze the transmission quality of the path. For example, if the location information of the data packet does not change within the preset time interval, it can be known that the path corresponding to the location information of the data packet is the packet light. The path of the transmission quality of the transmission network board is abnormal; optionally, the alarm sound is emitted through the output device, or the blinking signal is sent through the preset LED light.

It should be noted that, if the data packet abnormality of the corresponding loopback test is detected, the switch chip, the network processing chip, or the photoelectric module may also output alarm information.

Optionally, in order to test the packet optical transport network board more flexibly, a third embodiment of the method for testing a packet optical transport network board of the present application is proposed based on the second embodiment. In this embodiment, when the packet is When the optical transport network board is connected to the display terminal, the step of outputting the alarm information by the framing chip includes:

In this embodiment, if an abnormality occurs in the data packet, and the packet optical transport network board is connected to the display terminal, the packet optical transport network board sends the alarm information to the display terminal to The display terminal is configured to display a current circulation state of the packet optical transport network board, such as a path of the open circuit.

Embodiments of the present invention further provide a computer readable storage medium storing a computer executable The instructions, when the computer executable instructions are executed, implement the above method.

The application also provides an apparatus for testing a packet optical transport network board.

Referring to FIG. 2, FIG. 2 is a block diagram of an apparatus for testing a packet optical transport network board in the first embodiment of the present application.

It should be emphasized that, for those skilled in the art, FIG. 2 is only a block diagram of an apparatus for testing a packet optical transport network board in an alternative embodiment, and the test group shown in FIG. 2 is used by those skilled in the art. The function module of the device of the optical transport network board can easily supplement the new function module; the name of each function module is a custom name, which is only used to assist in understanding the various program function blocks of the device of the test packet optical transport network board. It is not intended to limit the technical solution of the present application, and the core of the technical solution of the present application is the function to be achieved by the functional modules of the respective defined names.

This embodiment provides an apparatus for testing a packet optical transport network board. The apparatus for testing a packet optical transport network board includes:

The first sending module 10 is configured to, when receiving the data packet sent by the network processing chip, send the received data packet to the optoelectronic module, so that the optoelectronic module feeds back to the framing chip The optical fiber interface of the photoelectric module performs the data packet of the first loopback test;

In this embodiment, the method for testing the packet optical transport network board includes the internal testing of the packet optical transport network board and the packet optical transport network board and the other packet optical transport network boards for bidirectional testing, and testing the packet optical transport network board. The method of sending data packets to the optoelectronic module is different. When the test mode of the packet optical transport network board is the internal test of the board, the framing chip sends the preset data packet to the optoelectronic module; when the packet optical transport network board and other packet light are performed When the transport network board performs bidirectional testing, the framing chip receives the data packet sent by the network processing chip, and then sends the received data packet to the optoelectronic module.

In this embodiment, when detecting a path inside the packet optical transport network board, the network processing chip sends the data packet to the first sending module 10, when the framing chip receives the data packet sent by the network processing chip. Sending the received data packet to the optoelectronic module, so that the optoelectronic module performs a first loopback test on the data packet through the optical fiber interface, and after performing the first loopback test, the data packet is fed back to the Frame chip.

The second sending module 20 is configured to: when receiving the data packet fed back by the optoelectronic module, the framing chip sends the received data packet to the switch chip, where the switch chip passes the data packet The path of the switch chip on the backplane side performs a second loopback test, and the framing chip receives the data packet that is subjected to the second loopback test feedback through the path on the backplane side of the switch chip. ;

In this embodiment, when receiving the data packet fed back by the optoelectronic module, the framing chip sends the received data packet to the switch chip, and the switch chip passes the data packet through the switch chip. Performing a second loopback test on the path on the backplane side, and transmitting the data packet that is subjected to the second loopback test feedback on the path of the backplane side of the switch chip to the framing chip, In the board testing method of the related art, when the framing chip sends a data packet to the optoelectronic module, the first loopback test is performed by the optoelectronic module, and then fed back to the framing chip, and then the framing chip sends the data packet to the switching chip. The path of the backplane side of the switch chip is received by the framing chip after performing the second loopback test. It can be seen that in the testing method of the related art, the process of detecting the photoelectric module and the switching chip can only detect one side first, and after detecting one of the photoelectric module and the switching chip, the photoelectric module and the switching chip can be detected. The other one, obviously, the transmission quality of the path of the packet optical transport network board cannot be detected, and therefore, the internal function of the framing chip cannot be detected. The present application detects the inside of the framing chip by detecting the channel connecting the framing chips. Moreover, when the framing chip and the optoelectronic module of the related art, and the framing chip and the switch chip perform the loopback test at the same time, the clock oscillation is easily caused, and the path detection of the packet optical transport network board is unstable, and the present application passes the framing chip. The data packet is sent to the network processing chip via the optoelectronic module and the switch chip, which avoids clock oscillation and more stably detects the packet optical transport network board.

The third sending module 30 is configured to, when receiving the data packet fed back by the switch chip, send the data packet to the network processing chip, where the network processing chip passes the back packet of the switch chip with the data packet The side path performs a third loopback test and receives a data packet from the switch chip for a third loopback test through a path on the backplane side of the switch chip.

In this embodiment, when receiving the data packet fed back by the switch chip, the framing chip sends the data packet to the network processing chip, and the network processing chip sends the data packet to the exchange. Chip to detect the path between the network processing chip and the framing chip and the switching chip. The network processing chip sends the data packet to a switch chip, and the data packet passes through the back of the switch chip The path on the board side is looped back to detect the path of the network processing chip.

The apparatus for testing a packet optical transport network board according to the embodiment, the framing chip sends the data packet fed back by the optoelectronic module to the switch chip, and the data packet is subjected to the second loopback by the switch chip through the path on the backplane side thereof. After the test, the framing chip is fed back to the framing chip, and then the framing chip sends the data packet to the network processing chip, so that the network processing chip processes the data packet, thereby The framing chip, the switch chip, the network processing chip, and the optoelectronic module in the board are tested, instead of dividing the process of testing the packet optical transport network board into a framing chip, and transmitting the data packet fed back by the optoelectronic module to the network processing chip. And the framing chip sends the data packet to the switch chip, which reduces the time in testing the packet optical transport network board, thereby improving the efficiency of testing the packet optical transport network board.

When testing the path between the packet optical transport network board and the other packet optical transport network boards, that is, the data packet is routed by other packet optical transport network boards via the path on the backplane side of the switch chip. When the data packet sent by the optical transport network board is packetized, the framing chip receives the data packet sent by the other packet optical transport network board through the network processing chip.

And the data packet is sent to the network processing chip of the packet optical transport network board by a path of the other packet optical transport network board on the backplane side of the switch chip of the packet optical transport network board, and then, The network processing chip sends the data packet to the framing chip, and the first sending module 10 sends the received data packet to the optoelectronic module, and the optoelectronic module feeds back the data packet for performing the first loopback test. When receiving the data packet fed back by the optoelectronic module, the second sending module 20 sends the received data packet to the switch chip, and the switch chip performs the data packet on the path on the backplane side thereof. After the second loopback test, the data packet is sent to the framing chip, and the framing chip sends the data packet to a network processing chip, and the network processing chip passes the data packet through the switch chip. The path on the backplane side performs a third loopback test and is sent by the network processing chip to other packet optical transport network boards.

In this embodiment, when the framing chip receives the data packet fed back by the switch chip, the data packet is sent to the network processing chip, and at this time, the network processing chip sends the data packet. Sending to the switch chip, the switch chip sends the data packet to other packet optical transport network boards through a path on the backplane side of the switch chip of the packet optical transport network board to which it belongs.

Optionally, in order to test the packet optical transport network board more flexibly, the second embodiment of the apparatus for testing the packet optical transport network board of the present application is proposed based on the first embodiment of the apparatus for testing the packet optical transport network board, In this embodiment, the device for testing a packet optical transport network board further includes:

The output module is configured to cause the framing chip to output alarm information if the packet abnormality for performing the loopback test is detected.

In this embodiment, during the data packet transmission process, when the data packet abnormality is detected, such as a packet loss, a frame format error, or a data packet is not circulating, the current data packet is searched according to the detected result. The path of the path, and analyzes the transmission quality of the path. For example, the location information of the data packet does not change during the preset time interval. It can be known that the path corresponding to the location information of the data packet is the transmission of the packet optical transport network board. A path of abnormal mass; optionally, a beep is sounded by the output device or a blinking signal is sent by a preset LED.

Optionally, in order to test the packet optical transport network board more flexibly, the third embodiment of the apparatus for testing the packet optical transport network board of the present application is proposed based on the second embodiment. In this embodiment, the output module The sending unit is configured to send the alarm information to the display terminal when the packet optical transport network board is connected to the display terminal, so that the display terminal displays the current circulation of the packet optical transport network board status.

It is to be understood that the term "comprises", "comprising", or any other variants thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or system that comprises a plurality of elements includes not only those elements. Also includes other elements not explicitly listed, or It also includes elements inherent to such a process, method, article or system. An element defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in a process, method, article, or system that includes the element, without further limitation.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present application, which is essential or contributes to the related art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM). The instructions include a number of instructions for causing a terminal device (which may be a cell phone, computer, server, air conditioner, or network device, etc.) to perform the methods described in various embodiments of the present application.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function. Embodiments of the invention are not limited to any specific form of combination of hardware and software.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the patents of the present application, and the equivalent structure or equivalent flow transformations made by the contents of the specification and the drawings of the present application, or directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of this application.

Industrial applicability

The present application provides a method and apparatus for testing a packet optical transport network board, the method comprising: the framing chip transmitting a data packet fed back by the optoelectronic module to the switch chip, where the data packet is passed by the switch chip After the second loopback test is performed on the path of the backplane side, the framing chip is fed back to the framing chip, and then the framing chip sends the data packet to the network processing chip for the network processing chip to The data packet is processed to test the framing chip, the switch chip, the network processing chip, and the optoelectronic module in the packet optical transport network board; the time in testing the packet optical transport network board is reduced, Thereby, the efficiency of testing the packet optical transport network board is improved.

Claims

A method for testing a packet optical transport network board includes:

Upon receiving the data packet sent by the network processing chip, the framing chip sends the received data packet to the optoelectronic module, and the optoelectronic module feeds back to the framing chip to pass through the optical fiber interface of the optoelectronic module. a loopback test packet;

Receiving, by the framing chip, the received data packet to the switch chip, the switch chip passing the data packet on the backplane side of the switch chip when receiving the data packet fed back by the optoelectronic module Performing a second loopback test on the path, and the framing chip receives the data packet that is subjected to the second loopback test feedback through a path on the backplane side of the switch chip;

Receiving, by the framing chip, the data packet to the network processing chip when receiving the data packet fed back by the switch chip, the network processing chip passing the data packet through the back of the switch chip The path on the board side performs a third loopback test, and receives a data packet from the switch chip for performing a third loopback test through a path on the backplane side of the switch chip.
The method of testing a packet optical transport network board according to claim 1, wherein said data packet is sent to said network processing chip by a path of another packet optical transport network board via a backplane side of a switch chip therein .
The method for testing a packet optical transport network board according to claim 1 or 2, wherein the method for testing a packet optical transport network board further comprises:

The framing chip outputs an alarm message if the packet abnormality in which the loopback test is performed is detected.
The method of testing a packet optical transport network board according to claim 3, wherein when the packet optical transport network board is connected to the display terminal, the step of outputting the alarm information by the framing chip comprises:

The packet optical transport network board sends the alarm information to the display terminal, so that the display terminal displays the current circulation status of the packet optical transport network board.
A device for testing a packet optical transport network board, comprising:

The first sending module is configured to: when receiving the data packet sent by the network processing chip, send the received data packet to the optoelectronic module, so that the optoelectronic module feeds back to the framing chip through the optoelectronic device The fiber optic interface of the module performs the data packet of the first loopback test;

a second sending module, configured to: when receiving the data packet fed back by the optoelectronic module, the framing chip sends the received data packet to the switch chip, where the switch chip passes the data packet Performing a second loopback test on the path of the switch chip on the backplane side, and the framing chip receives the data packet that is subjected to the second loopback test feedback through the path on the backplane side of the switch chip;

a third sending module, configured to: when receiving a data packet fed back by the switch chip, send the data packet to the network processing chip, where the network processing chip passes the data packet in the switch chip The path on the backplane side performs a third loopback test, and receives a data packet from the switch chip for a third loopback test through a path on the backplane side of the switch chip.
The apparatus for testing a packet optical transport network board according to claim 5, wherein said data packet is transmitted to said network processing chip via a path on a backplane side of its switch chip by another packet optical transport network board.
The device for testing a packet optical transport network board according to claim 5 or 6, wherein the device for testing the packet optical transport network board further comprises:

The output module is configured to cause the framing chip to output alarm information if the packet abnormality for performing the loopback test is detected.
The apparatus for testing a packet optical transport network board according to claim 7, wherein the output module comprises a transmitting unit,

The sending unit is configured to send the alarm information to the display terminal when the packet optical transport network board is connected to the display terminal, so that the display terminal displays the current circulation state of the packet optical transport network board.