CN113315572B - Detection method and device for optical module physical link, optical module and optical transmission system - Google Patents
Detection method and device for optical module physical link, optical module and optical transmission system Download PDFInfo
- Publication number
- CN113315572B CN113315572B CN202110343617.3A CN202110343617A CN113315572B CN 113315572 B CN113315572 B CN 113315572B CN 202110343617 A CN202110343617 A CN 202110343617A CN 113315572 B CN113315572 B CN 113315572B
- Authority
- CN
- China
- Prior art keywords
- optical module
- detection
- module
- optical
- error
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 355
- 238000001514 detection method Methods 0.000 title claims abstract description 169
- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 48
- 238000012544 monitoring process Methods 0.000 claims abstract description 38
- 238000012545 processing Methods 0.000 claims description 12
- 239000013307 optical fiber Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 6
- 238000003745 diagnosis Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 description 17
- 238000012937 correction Methods 0.000 description 15
- 238000012423 maintenance Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 13
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013154 diagnostic monitoring Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
Abstract
The application discloses a method and a device for detecting an optical module physical link, an optical module and an optical transmission system. Wherein the method comprises the following steps: acquiring monitoring data of a detection module in the optical module, wherein the detection module is used for detecting distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module; and determining the reason of the failure of the physical link of the optical module according to the monitoring data. The application solves the technical problems that the prior optical module body fault on-line real-time positioning means are limited and the problem fault misjudgment is easy to occur.
Description
Technical Field
The present application relates to the field of optical module fault detection, and in particular, to a method and apparatus for detecting an optical module physical link, an optical module, and an optical transmission system.
Background
With the continuous expansion and development of data centers, the high-speed interconnection optical modules applied in the data centers are more and more, and the operation and maintenance of the high-speed optical modules continuously challenge the operation and maintenance capabilities of the data centers. Meanwhile, when a link fault generally occurs in the early 1G/10G/40G network architecture era, most of the optical modules are replaced firstly, if the link fault is recovered after the replacement, the optical modules are considered to be faulty, so that the number of the problem modules returned to a provider every year is very large, firstly, the cost of the 1G/10G/40G optical modules per se is low in the occupation ratio of the data center, and the operation and maintenance cost of the replaced optical modules is low; secondly, because the 1G/10G/40G optical module has fewer self-supported functions, the real problem reason positioning is difficult to be quickly carried out on line by matching with network equipment. However, in the present 25G/100G network architecture era, even in the future 200G, 400G and 800G network architecture era, the optical module cost has higher and higher proportion in the data center and even exceeds the network equipment, if the original operation and maintenance mode of directly replacing the optical module is adopted, the optical module provider can cause great loss, the reasons for occurrence of link faults are various, and a plurality of faults can be compatibility problems or network equipment problems, and are not necessarily faults of the optical module itself; in addition, the high-speed optical link may have a relatively large impact on service when it fails severely. Therefore, if a method for detecting the point-to-point signal quality of a physical link on line in real time can be provided on the basis of a new technical scheme of 200G/400G or even 800G optical modules in the future, the method will bring great value to the operation and maintenance of a data center. The problem points are truly and rapidly confirmed by detecting the signal quality of the physical link in a segmented mode, so that operation and maintenance work can be guided more efficiently and accurately.
The currently commonly used operation and maintenance method of the optical module is to collect DDM (Digital Diagnostic Monitoring) information of the optical module, and further analyze the DDM variation of the optical module every day through big data to determine the possibility of faults. The former proposal collects too little optical module information, and the problem cause can not be judged; the latter approach may find some rules and phenomena but also cannot be used for real-time problem localization when the problem cause and DDM information are not relevant.
Aiming at the problems that the current optical module body fault is limited in online real-time positioning means and is easy to cause wrong fault judgment, no effective solution is proposed at present.
Disclosure of Invention
The embodiment of the application provides a detection method and device of an optical module physical link, an optical module and an optical transmission system, which at least solve the technical problems that the current optical module body fault is limited in means of on-line real-time positioning and is easy to cause problem fault misjudgment.
According to an aspect of an embodiment of the present application, there is provided a method for detecting a physical link of an optical module, including: acquiring monitoring data of a detection module in the optical module, wherein the detection module is used for detecting distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module; and determining the reason of the failure of the physical link of the optical module according to the monitoring data.
According to another aspect of the embodiment of the present application, there is also provided a device for detecting a physical link of an optical module, including: the acquisition module is used for acquiring monitoring data of a detection module in the optical module, wherein the detection module is used for detecting distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module; and the determining module is used for determining the reason of the failure of the physical link of the optical module according to the monitoring data.
According to another aspect of the embodiment of the present application, there is further provided an optical module, a detection module, and a controller, where the detection module is configured to detect distribution information of error symbols continuously occurring in any one codeword of ethernet traffic received or transmitted by the optical module; and the controller is communicated with the detection module and is used for determining the reason of the failure of the physical link of the optical module according to the distribution information.
According to another aspect of an embodiment of the present application, there is also provided an optical transmission system including: the system comprises an optical module and network equipment, wherein the optical module comprises a detection module for detecting distribution information of error symbols continuously appearing in any code word of Ethernet traffic received or transmitted by the optical module; and the network equipment is communicated with the optical module and is used for determining the reason of the failure of the physical link of the optical module according to the distribution information.
According to still another aspect of the embodiment of the present application, there is further provided a storage medium, where the storage medium includes a stored program, and when the program runs, the device where the storage medium is controlled to execute the above method for detecting a physical link of an optical module.
According to yet another aspect of an embodiment of the present application, there is also provided a computing device including: a processor; and a memory, coupled to the processor, for providing instructions to the processor for processing the steps of: acquiring monitoring data of a detection module in the optical module, wherein the detection module is positioned in the optical module and is used for detecting distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module; and determining the reason of the failure of the physical link of the optical module according to the monitoring data.
In the embodiment of the application, the monitoring data of a detection module in the optical module is acquired, wherein the detection module is used for detecting the distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module; according to the mode of determining the reason of the failure of the physical link of the optical module by monitoring data, the signal transmission quality between the optical module at the home end and the opposite end module is detected in real time by the forward error correction code detection function added in the optical module, the optical eye detection is not needed, the real-time performance is not influenced, the purpose of truly reflecting the transmission result of the optical link is achieved, the technical effects of rapidly judging whether the physical link is the failure of the optical module or the failure of the system side are achieved, the operation and maintenance efficiency is improved, the technical problems that the current optical module body failure is limited in online real-time positioning means and the problem failure misjudgment is easy to occur are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 shows a block diagram of a hardware architecture of a computer terminal (or mobile device) for implementing a method of detection of a physical link of an optical module;
fig. 2 is a flowchart of a method for detecting a physical link of an optical module according to an embodiment of the present application;
fig. 3 is a schematic block diagram of an optical module according to an embodiment of the application;
FIG. 4 is a schematic diagram of a distribution of consecutive error symbols occurring in any codeword in Ethernet traffic according to an embodiment of the application;
fig. 5 is a schematic diagram of an optical module physical link according to an embodiment of the application;
fig. 6 is a block diagram of a detection device for a physical link of an optical module according to an embodiment of the present application;
fig. 7 is a block diagram of an optical module according to an embodiment of the present application;
fig. 8 is a block diagram of an optical transmission system according to an embodiment of the present application;
fig. 9 is a block diagram of a computer terminal according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
First, partial terms or terminology appearing in the course of describing embodiments of the application are applicable to the following explanation:
an optical module: the photoelectric transceiver, the transmitting end converts the electrical signal into the optical signal, the receiving end converts the optical signal into the electrical signal.
PAM4:4-Level Pulse Ampl itude Modulat ion, four-level pulse amplitude modulation, is a signal modulation technique.
FEC: forward Error Correct ion, forward error correction code.
DDM: digital Diagnost ic Monitoring, digital diagnostic detection, optical module monitoring function.
EEPROM: electrical ly Erasable Programmable read only memory an electrically charged eeprom inside the light module.
DSP: digital s ignal processor a digital signal processor inside the optical module is mainly used for recovering the data signal.
Example 1
There is also provided, in accordance with an embodiment of the present application, an embodiment of a method for detecting a physical link of an optical module, where the steps shown in the flowchart of the drawings may be performed in a computer system, such as a set of computer executable instructions, and where, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order other than that shown.
The method according to the first embodiment of the present application may be implemented in a mobile terminal, a computer terminal or a similar computing device. Fig. 1 shows a block diagram of a hardware architecture of a computer terminal (or mobile device) for implementing a method of detection of a physical link of an optical module. As shown in fig. 1, the computer terminal 10 (or mobile device 10) may include one or more (shown as 102a, 102b, … …,102 n) processors 102 (the processors 102 may include, but are not limited to, a microprocessor MCU, a programmable logic device FPGA, etc. processing means), a memory 104 for storing data, and a transmission means 106 for communication functions. In addition, the method may further include: a display, an input/output interface (I/O interface), a Universal Serial BUS (USB) port (which may be included as one of the ports of the BUS), a network interface, a power supply, and/or a camera. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 1 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the computer terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
It should be noted that the one or more processors 102 and/or other data processing circuits described above may be referred to generally herein as "data processing circuits. The data processing circuit may be embodied in whole or in part in software, hardware, firmware, or any other combination. Furthermore, the data processing circuitry may be a single stand-alone processing module, or incorporated, in whole or in part, into any of the other elements in the computer terminal 10 (or mobile device). As referred to in embodiments of the application, the data processing circuit acts as a processor control (e.g., selection of the path of the variable resistor termination connected to the interface).
The memory 104 may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the optical module physical link detection method in the embodiment of the present application, and the processor 102 executes the software programs and modules stored in the memory 104, thereby executing various functional applications and data processing, that is, implementing the optical module physical link detection method described above. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission means 106 is arranged to receive or transmit data via a network. The specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission device 106 includes a network adapter (Network Interface Control ler, NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module for communicating with the internet wirelessly.
The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with a user interface of the computer terminal 10 (or mobile device).
In the above operating environment, the present application provides a method for detecting a physical link of an optical module as shown in fig. 2.
At present, the online real-time positioning of the faults of the optical module body mainly comprises the following methods:
scheme one: the common optical module online fault diagnosis method is to read DDM information in the optical module, wherein the DDM mainly comprises five items of module data: operating voltage, operating current, operating temperature, emitted light power, and received light power. When the physical link fails, the optical module DDM information read in real time on the network equipment is analyzed to roughly judge whether the problem is related to the optical module link.
Disadvantages: the reason for the failure of the physical link is very many, and many reasons for the problem cannot be obviously abnormal through the DDM, such as the optical eye degradation of the optical module transmission, at this time, the five items of data of the DDM cannot be obviously abnormal, but a large number of error codes can be output by the opposite end module, so that the system side monitors a large number of error codes, and even the port down is dropped. In this case, it is difficult to quickly determine whether it is a module-side failure or a system-side failure.
Scheme II: and detecting the DDM five values of the optical module for a long time, acquiring the change trend of the DDM five values through big data analysis, finding out some rules and phenomena, and judging possible problem points through correlation when physical link faults occur.
Disadvantages: the reason for the failure of the physical link is very many, and many reasons for the problem cannot be obviously abnormal through the DDM, for example, the optical eye diagram degradation of the optical module transmission is not visible, even if the DDM five items of data of the optical module are detected for a long time, the abnormality cannot be detected, but the optical eye diagram degradation of the local end transmission may cause the receiving module of the opposite end to receive a large number of error codes and output the error codes to the system side, so that the system side monitors a large number of error codes, and even the port down is dropped. In this case, it is difficult to quickly determine whether it is a module-side failure or a system-side failure.
Scheme III: the current part of high-speed optical module electric chip can support Eye Monitor function, and is used for detecting the condition of the optical Eye pattern received by the optical module, so that the quality of the optical Eye pattern can be roughly judged.
Disadvantages: if the known chip supports the Eye Monitor function, service interruption can be caused, so that the function can only be used under the condition of physical link isolation; in addition, if relatively accurate eye pattern information is to be obtained, the sampling point number needs to be increased, the type selection requirements of the MCU and the RAM of the optical module are higher, meanwhile, because the data volume is larger, the IIC rate of the current network equipment smaller than 100K needs to take several minutes or even more than ten minutes to obtain complete data, and the real-time performance is poor.
With the continuous expansion and development of the data center, the operation and maintenance of the high-speed optical module of the data center continuously challenges the operation and maintenance capability of the data center, and the capability of rapidly positioning the physical link fault in real time has great significance for network operation and maintenance. The application provides a method for efficiently detecting the quality of an optical link signal of a data center in real time, which can quickly isolate the faults of an optical module and the faults of a system side. The method for detecting the physical link of the optical module provided by the application is described in detail as follows:
Fig. 2 is a flowchart of a method for detecting a physical link of an optical module according to an embodiment of the present application, as shown in fig. 2, the method includes the following steps:
step S202, monitoring data of a detection module inside an optical module is obtained, wherein the detection module is used for detecting distribution information of error symbols continuously appearing in any code word of Ethernet traffic received or transmitted by the optical module;
in order to overcome the defects of the existing scheme, the embodiment of the application adds the function of FEC Monitor in the DSP chip of the optical module for efficiently detecting the signal quality of the optical link of the data center in real time, thereby improving the operation and maintenance efficiency and accuracy. In some embodiments of the present application, a 200G QSFP56 SR4 optical module is taken as an example for description, and other 200G QSFP56 optical modules, 400G QSFP-DD optical modules, and future 800G optical module implementations are substantially identical.
It should be noted that the FEC Monitor (i.e., the detection module in step S202) may be a forward error correction code detection function implemented by software.
The main function implemented by the FEC Monitor is to record the distribution of 0-16 consecutive Symbol errors in any one code word in the ethernet traffic. For example, the electrical signal interface of the 200g s r4 optical module is 4 x 50g PAM4, the network device mainly uses KP4 FEC to perform error correction on the 50g PAM4 electrical signal, if the symbol error in any one codeword is within 15 consecutive errors, the symbol error in any one codeword can be corrected by KP4 FEC, if the symbol error in any one codeword exceeds 15 consecutive errors, the symbol error in the KP4 FEC is not within the error-correction-free range, and an error-free error is generated and output to the system side, and the specific definition can be introduced by referring to the IEEE802.3 standard. Usually, the FEC function exists only in a switching chip or a gecarbox chip of the network device, and only statistics of error-correctable error and error-uncorrectable error can be realized, and distribution statistics of symbol errors in any codeword cannot be realized. As shown in fig. 3, the present solution proposes to add an FEC Monitor function inside the DSP chip of the optical module to detect the distribution of ethernet messages Symbol error per Codeword in real time.
According to another alternative embodiment of the present application, the physical link of the optical module may also be detected by detecting the distribution of 0-16 consecutive Symbol errors in two or more codes. For example, only the error symbols continuously occurring in two (or three, or other numerical) codewords exceed a preset number, and the detection module generates an alarm.
It should be noted that the detection module in step S202 includes, but is not limited to, the FEC detection module described above, and other detection modules may be used as long as the detection module has a detection function.
Step S204, determining the reason of the failure of the physical link of the optical module according to the monitoring data.
By the method, the signal transmission quality between the local optical module and the opposite-end module is detected in real time through the forward error correction code detection function added in the optical module, optical eye detection is not needed, the instantaneity is not influenced, the transmission result of the optical link can be truly reflected, and therefore the technical effect of rapidly judging whether the physical link is an optical module fault or a system side fault is achieved, and further the operation and maintenance efficiency is improved.
According to an alternative embodiment of the present application, before executing step S202, a first preset threshold value for the detection module to alarm is further set, where if the number of error symbols continuously occurring in any one codeword exceeds the first preset threshold value, the detection module alarms.
In this step, a threshold for the forward error correction code detection module to alarm is set, for example, if Symbol error is set to be within 10 consecutive frames, no alarm is given, otherwise, an alarm is given. A schematic representation of the Symbol error distribution in the code is shown in FIG. 4.
According to another alternative embodiment of the application, the physical link of the optical module comprises: the system comprises a first network device, a first optical module, an optical fiber link, a second optical module and second network device which are sequentially connected, wherein the first optical module is connected with the first network device, the second optical module is connected with the second network device, and the first optical module is connected with the second optical module through the optical fiber link.
Fig. 5 is a schematic diagram of an optical module physical link according to an embodiment of the present application, and as shown in fig. 5, the optical module physical link mainly includes the following parts: network device 1, optical module 1, optical fiber link, optical module 2, and network device 2.
In some optional embodiments of the present application, when step S202 is performed, monitoring data of the detection modules inside the first optical module and the second optical module are obtained, respectively.
It should be noted that, the optical modules 1 and 2 are respectively provided with a forward error correction code detection module, so when monitoring data of the forward error correction code detection modules in the optical modules are obtained, monitoring data of the forward error correction code detection modules in the first optical module and the second optical module are required to be obtained respectively.
In another alternative embodiment of the present application, step S204 is implemented by: determining whether an alarm occurs to a detection module in the first optical module and the second optical module to obtain a first detection result, and detecting whether the detection module in the first optical module and the second optical module detects an error code which cannot be corrected to obtain a second detection result, wherein if the number of error symbols continuously occurring in any one codeword exceeds a second preset threshold, the detection of the error code which cannot be corrected is determined; and determining the reason of the failure of the physical link of the optical module according to the first detection result and the second detection result.
In the above, if the symbol errors in any one codeword are within 15 consecutive numbers, the symbol errors can be corrected by KP4 FEC, and if the symbol errors of any one codeword exceed 15 consecutive numbers, the symbol errors are not within the KP4 FEC uncorrectable range.
According to an alternative embodiment of the present application, when the first optical module sends data to the second optical module, determining, according to the first detection result and the second detection result, a cause of a failure of a physical link of the optical module includes: if the detection modules in the first optical module and the second optical module do not detect the uncorrectable error codes, determining that the reason for the failure of the physical link of the optical module is that the first network device or the second network device fails; if the detection module in the first optical module does not detect the uncorrectable error code and alarms, the detection module in the second optical module detects the uncorrectable error code, and the reason for the failure of the physical link of the optical module is determined to be that the optical fiber link fails; if the detection modules inside the first optical module and the second optical module detect the error codes which cannot be corrected, the reason that the physical link of the optical module breaks down is determined to be that the first optical module is incompatible with the first network equipment.
In this step, it is checked whether the FEC Monitor of the optical module 1 and the optical module 2 has an alarm, and whether an uncorrectable error occurs, respectively, and it is required to indicate that the FEC Monitor is bidirectional. The following is an example of the problem location concept of the optical module 1 being transmitted to the optical module 2 being received, and the problem location concept of the optical module 2 being transmitted to the optical module 1 being consistent.
If the TX FEC Monitor of optical module 1 and the RX FEC Monitor of optical module 2 do not detect uncorrectable errors and the physical link fails, the basic decision is that the system side fails (i.e. the network device fails).
If the TX FEC Monitor of the optical module 1 does not detect an uncorrectable error code, and the Margin is large (here, it can be understood that the forward error correction code detection module inside the optical module 1 detects that the number of error symbols continuously occurring in any codeword of the ethernet traffic exceeds a first preset threshold, and an alarm occurs), and the RX FEC Monitor of the optical module 2 detects that there is an uncorrectable error code, then the basic determination is that the optical link sent by the optical module 1 to the optical module 2 is faulty (i.e. the optical link is faulty).
If TX FEC Monitor of optical module 1 detects an uncorrectable error, it is theorized that RX FEC Monitor of optical module 2 also synchronously detects an uncorrectable error, and then the compatibility problem between network device 1 and optical module 1 is to be examined.
According to another alternative embodiment of the present application, before step S202 is performed, digital diagnostic test data of the first optical module and the second optical module need to be acquired; and if the digital diagnosis detection data are normal, acquiring the monitoring data of the detection module.
When the physical link fails, checking the DDM information of the optical module 1 and the optical module 2, and if the DDM is abnormal, continuously checking the reason for the DDM abnormality; and if the DDM does not check the abnormal condition, acquiring the monitoring data of the forward error correction code detection module.
Preferably, the monitoring data of the forward error correction code detection module is stored in a register of a memory inside the light module.
The detected percentages of different Symbol error or actual Count values are recorded in real time in 16byte registers of a self-defined optical module EEPROM, the registers are real-time registers, and information recorded by the optical module can be read in real time through an IIC interface of network equipment, so that the signal quality of an optical link and Margin (Margin can be understood as the number of error symbols continuously appearing in any code word of Ethernet flow detected by a forward error correction code detection module) are known in real time, and the possibility of assisting operation and maintenance and early finding potential risks is realized.
The fixed Page section and specific address bits are defined in the optical module EEPROM and used for storing Symbol Error per Codeword distribution conditions detected and analyzed in real time by the FEC Monitor, and in the current network environment, the signal transmission quality and Margin between the optical modules can be clearly known by acquiring a code distribution result in the optical module through network equipment, so that potential risks are found, and the operation and maintenance efficiency and accuracy are improved.
It should be noted that the method for detecting the physical link of the optical module provided by the application can be applied to all high-speed optical modules used in a data center, such as 200G QSFP56 SR4, 200G QSFP56 FR4 optical modules, 400G QSFP-DD packaged optical modules and 800G optical modules to be used in the future.
The application stores the data detected by the FEC Monitor in the EEPROM of the optical module through the FEC Monitor function added by the DSP chip in the optical module, detects the signal transmission quality between the local end module and the opposite end module in real time, does not need to detect an optical eye pattern, does not influence the instantaneity, can truly reflect the transmission result of the optical link, and combines the DDM data of the optical module, thereby truly and rapidly judging whether the physical link is the fault of the optical module or the fault of the system side.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.
From the above description of the embodiments, it will be clear to those skilled in the art that the method for detecting a physical link of an optical module according to the above embodiments may be implemented by means of software plus a necessary general hardware platform, or may be implemented by hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.
Example 2
According to an embodiment of the present application, there is also provided an apparatus for implementing the method for detecting a physical link of an optical module, as shown in fig. 6, where the apparatus includes:
the acquiring module 60 is configured to acquire monitoring data of a detecting module inside the optical module, where the detecting module is configured to detect distribution information of error symbols continuously occurring in any one codeword of the ethernet traffic received or transmitted by the optical module;
and the determining module 62 is configured to determine a cause of the failure of the physical link of the optical module according to the monitoring data.
Here, it should be noted that the above-mentioned obtaining module 60 and determining module 62 correspond to step S202 to step S204 in embodiment 1, and the two modules are the same as the examples and application scenarios implemented by the corresponding steps, but are not limited to those disclosed in embodiment 1 above. It should be noted that the above-described module may be operated as a part of the apparatus in the computer terminal 10 provided in embodiment 1.
Example 3
According to an embodiment of the present application, there is also provided an optical module, as shown in fig. 7, including: a detection module 70, and a controller 72, wherein,
the detecting module 70 is configured to detect distribution information of error symbols continuously appearing in any one codeword of the ethernet traffic received or transmitted by the optical module;
It should be noted that, the detection module 70 is a hardware module disposed inside the optical module, and may be implemented by an ARM.
The controller 72 is in communication with the detection module 70 and is configured to determine a cause of a failure of the physical link of the optical module based on the distribution information.
It should be noted that, the preferred implementation manner of the embodiment shown in fig. 7 may refer to the related description of the embodiment shown in fig. 2, which is not repeated herein.
Example 4
There is also provided, in accordance with an embodiment of the present application, an optical transmission system, as shown in fig. 8, including: an optical module 80, and a network device 82, wherein,
the optical module 80 includes a detection module, configured to detect distribution information of error symbols continuously occurring in any one codeword of the ethernet traffic received or transmitted by the optical module 80;
the network device 82 is in communication with the optical module 80 and is configured to determine a cause of the failure of the physical link of the optical module 80 according to the distribution information.
It should be noted that, the preferred implementation manner of the embodiment shown in fig. 8 may refer to the related description of the embodiment shown in fig. 2, which is not repeated herein.
Example 5
Embodiments of the present application may provide a computer terminal, which may be any one of a group of computer terminals. Alternatively, in the present embodiment, the above-described computer terminal may be replaced with a terminal device such as a mobile terminal.
Alternatively, in this embodiment, the above-mentioned computer terminal may be located in at least one network device among a plurality of network devices of the computer network.
In this embodiment, the above-mentioned computer terminal may execute the program code of the following steps in the method for detecting an optical module physical link of an application program: acquiring monitoring data of a detection module in the optical module, wherein the detection module is used for detecting distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module; and determining the reason of the failure of the physical link of the optical module according to the monitoring data.
Alternatively, fig. 9 is a block diagram of a computer terminal according to an embodiment of the present application. As shown in fig. 9, the computer terminal 90 may include: one or more (only one shown) processors 902, memory 904, and radio frequency modules, audio modules, and a display screen.
The memory may be used to store software programs and modules, such as program instructions/modules corresponding to the method and apparatus for detecting an optical module physical link in the embodiment of the present application, and the processor executes various functional applications and data processing by running the software programs and modules stored in the memory, thereby implementing the method for detecting an optical module physical link. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include memory remotely located with respect to the processor, the remote memory being connectable to the terminal through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The processor may call the information and the application program stored in the memory through the transmission device to perform the following steps: acquiring monitoring data of a detection module in the optical module, wherein the detection module is used for detecting distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module; and determining the reason of the failure of the physical link of the optical module according to the monitoring data.
Optionally, the above processor may further execute program code for: and setting a first preset threshold value for the detection module to alarm, wherein if the number of error symbols continuously appearing in any code word exceeds the first preset threshold value, the detection module alarms.
Optionally, the above processor may further execute program code for: and respectively acquiring monitoring data of detection modules inside the first optical module and the second optical module.
Optionally, the above processor may further execute program code for: determining whether an alarm occurs to a detection module in the first optical module and the second optical module to obtain a first detection result, and detecting whether the detection module in the first optical module and the second optical module detects an error code which cannot be corrected to obtain a second detection result, wherein if the number of error symbols continuously occurring in any one codeword exceeds a second preset threshold, the detection of the error code which cannot be corrected is determined; and determining the reason of the failure of the physical link of the optical module according to the first detection result and the second detection result.
Optionally, the above processor may further execute program code for: if the detection modules in the first optical module and the second optical module do not detect the uncorrectable error codes, determining that the reason for the failure of the physical link of the optical module is that the first network device or the second network device fails; if the detection module in the first optical module does not detect the uncorrectable error code and alarms, the detection module in the second optical module detects the uncorrectable error code, and the reason for the failure of the physical link of the optical module is determined to be that the optical fiber link fails; if the detection modules inside the first optical module and the second optical module detect the error codes which cannot be corrected, the reason that the physical link of the optical module breaks down is determined to be that the first optical module is incompatible with the first network equipment.
Optionally, the above processor may further execute program code for: acquiring digital diagnostic detection data of the first optical module and the second optical module; and if the digital diagnosis detection data are normal, acquiring the monitoring data of the detection module.
The embodiment of the application provides a method for detecting an optical module physical link. The forward error correction code detection function is added in the optical module, so that the signal transmission quality between the local optical module and the opposite end module is detected in real time, the optical eye detection is not needed, the real-time performance is not influenced, the transmission result of an optical link can be truly reflected, and the technical problems that the current optical module body fault is limited in means of on-line real-time positioning and the fault misjudgment is easy to occur are solved.
It will be appreciated by those skilled in the art that the configuration shown in fig. 9 is only illustrative, and the computer terminal may be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, a mobile internet device (Mobi le Internet Devices, MID), a PAD, etc. Fig. 9 is not limited to the structure of the electronic device. For example, the computer terminal 90 may also include more or fewer components (e.g., network interfaces, display devices, etc.) than shown in FIG. 9, or have a different configuration than shown in FIG. 9.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program for instructing a terminal device to execute in association with hardware, the program may be stored in a computer readable storage medium, and the storage medium may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.
The embodiment of the application also provides a storage medium. Alternatively, in this embodiment, the storage medium may be used to store program code executed by the optical module physical link detection method provided in embodiment 1.
Alternatively, in this embodiment, the storage medium may be located in any one of the computer terminals in the computer terminal group in the computer network, or in any one of the mobile terminals in the mobile terminal group.
Alternatively, in the present embodiment, the storage medium is configured to store program code for performing the steps of: acquiring monitoring data of a detection module in the optical module, wherein the detection module is used for detecting distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module; and determining the reason of the failure of the physical link of the optical module according to the monitoring data.
Optionally, the above-mentioned storage medium is further configured to store program code for performing the steps of: and setting a first preset threshold value for the detection module to alarm, wherein if the number of error symbols continuously appearing in any code word exceeds the first preset threshold value, the detection module alarms.
Optionally, the above storage medium is further configured to store program code for performing the steps of: and respectively acquiring monitoring data of detection modules inside the first optical module and the second optical module.
Optionally, the above storage medium is further configured to store program code for performing the steps of: determining whether an alarm occurs to a detection module in the first optical module and the second optical module to obtain a first detection result, and detecting whether the detection module in the first optical module and the second optical module detects an error code which cannot be corrected to obtain a second detection result, wherein if the number of error symbols continuously occurring in any one codeword exceeds a second preset threshold, the detection of the error code which cannot be corrected is determined; and determining the reason of the failure of the physical link of the optical module according to the first detection result and the second detection result.
Optionally, the above storage medium is further configured to store program code for performing the steps of: if the detection modules in the first optical module and the second optical module do not detect the uncorrectable error codes, determining that the reason for the failure of the physical link of the optical module is that the first network device or the second network device fails; if the detection module in the first optical module does not detect the uncorrectable error code and alarms, the detection module in the second optical module detects the uncorrectable error code, and the reason for the failure of the physical link of the optical module is determined to be that the optical fiber link fails; if the detection modules inside the first optical module and the second optical module detect the error codes which cannot be corrected, the reason that the physical link of the optical module breaks down is determined to be that the first optical module is incompatible with the first network equipment.
Optionally, the above storage medium is further configured to store program code for performing the steps of: acquiring digital diagnostic detection data of the first optical module and the second optical module; and if the digital diagnosis detection data are normal, acquiring the monitoring data of the detection module.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (9)
1. The method for detecting the physical link of the optical module is characterized in that the physical link of the optical module comprises the following steps: the method comprises the following steps of:
the method comprises the steps of respectively obtaining monitoring data of detection modules in a first optical module and a second optical module, wherein the detection modules are used for detecting distribution information of error symbols continuously appearing in any code word of Ethernet traffic received or transmitted by the first optical module or the second optical module, if the number of the error symbols continuously appearing in any code word exceeds a first preset threshold value, the detection modules give an alarm, and if the number of the error symbols continuously appearing in any code word exceeds a second preset threshold value, the detection modules determine that error codes which cannot be corrected are detected;
Determining whether the detection modules in the first optical module and the second optical module generate alarms to obtain a first detection result, and detecting whether the detection modules in the first optical module and the second optical module detect uncorrectable error codes to obtain a second detection result;
and determining the reason of the failure of the physical link of the optical module according to the first detection result and the second detection result.
2. The method of claim 1, wherein determining, when the first optical module sends data to the second optical module, a cause of a failure of a physical link of the optical module according to the first detection result and the second detection result comprises:
if the detection modules in the first optical module and the second optical module do not detect the error codes which can not be corrected, determining that the physical link of the optical module is failed because the first network device or the second network device is failed;
if the detection module in the first optical module does not detect the error code which can not be corrected and an alarm occurs, the detection module in the second optical module detects the error code which can not be corrected, and the reason that the physical link of the optical module is failed is determined to be that the optical fiber link is failed;
And if the detection modules inside the first optical module and the second optical module both detect the error codes which cannot be corrected, determining that the reason that the physical link of the optical module fails is that the first optical module is incompatible with the first network equipment.
3. The method of claim 1, wherein prior to acquiring the monitoring data of the detection modules inside the first and second optical modules, respectively, the method further comprises:
acquiring digital diagnostic detection data of the first optical module and the second optical module;
and if the digital diagnosis detection data are normal, acquiring the monitoring data of the detection module.
4. A method according to any one of claims 1 to 3, characterized in that the monitoring data of the detection module is stored in a register of a memory inside the first or second light module.
5. A device for detecting a physical link of an optical module, wherein the physical link of the optical module comprises: the first network equipment, the first optical module, the optical fiber link, the second optical module and the second network equipment which are connected in sequence, the device comprises:
the acquisition module is used for respectively acquiring the monitoring data of the detection modules in the first optical module and the second optical module, wherein the detection module is used for detecting the distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the first optical module or the second optical module, if the number of the error symbols continuously appearing in any code word exceeds a first preset threshold, the detection module gives an alarm, and if the number of the error symbols continuously appearing in any code word exceeds a second preset threshold, the detection module determines that the error code which can not be corrected is detected;
The determining module is used for determining whether the detecting modules in the first optical module and the second optical module generate alarms to obtain a first detecting result, and detecting whether the detecting modules in the first optical module and the second optical module detect error codes which cannot be corrected to obtain a second detecting result; and determining the reason of the failure of the physical link of the optical module according to the first detection result and the second detection result.
6. An optical module, comprising: the detection module and the controller, wherein,
the detection module is used for detecting distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module, if the number of the error symbols continuously appearing in any code word exceeds a first preset threshold, the detection module gives an alarm, and if the number of the error symbols continuously appearing in any code word exceeds a second preset threshold, the detection module determines that the error code which cannot be corrected is detected;
the controller is in communication with the detection module and is used for determining whether the detection modules in the optical module and the opposite-end optical module generate an alarm or not to obtain a first detection result, and detecting whether the detection modules in the optical module and the opposite-end optical module detect non-error-correctable error codes or not to obtain a second detection result; and determining the reason of the fault of the physical link of the optical module according to the first detection result and the second detection result, wherein in the physical link of the optical module, the optical module is connected with the opposite-end optical module through an optical fiber link, the optical module is connected to network equipment, and the opposite-end optical module is connected to opposite-end network equipment.
7. An optical transmission system, comprising: optical module, and network device, wherein,
the optical module comprises a detection module, wherein the detection module is used for detecting distribution information of error symbols continuously appearing in any code word of the Ethernet traffic received or transmitted by the optical module, and if the number of the error symbols continuously appearing in any code word exceeds a first preset threshold, the detection module alarms, and if the number of the error symbols continuously appearing in any code word exceeds a second preset threshold, the detection module determines that the error code which cannot be corrected is detected;
the network equipment is communicated with the optical module and is used for determining whether the optical module and the detection module in the opposite-end optical module generate an alarm or not to obtain a first detection result, and detecting whether the optical module and the detection module in the opposite-end optical module detect non-error-correctable error codes or not to obtain a second detection result; and determining the reason of the fault of the physical link of the optical module according to the first detection result and the second detection result, wherein in the physical link of the optical module, the optical module is connected with the opposite-end optical module through an optical fiber link, the optical module is connected to the network equipment, and the opposite-end optical module is connected to the opposite-end network equipment.
8. A storage medium comprising a stored program, wherein the program, when run, controls a device in which the storage medium is located to perform the method of detecting a physical link of an optical module according to any one of claims 1 to 4.
9. A computing device, comprising:
a processor; and
a memory, coupled to the processor, for providing instructions to the processor to process the following processing steps:
the method comprises the steps of respectively obtaining monitoring data of detection modules in a first optical module and a second optical module, wherein the detection modules are used for detecting distribution information of error symbols continuously appearing in any code word of Ethernet traffic received or transmitted by the first optical module or the second optical module, alarming is generated by the detection modules if the number of the error symbols continuously appearing in any code word exceeds a first preset threshold, and the detection of error codes which cannot be corrected is determined if the number of the error symbols continuously appearing in any code word exceeds a second preset threshold;
determining whether the detection modules in the first optical module and the second optical module generate alarms to obtain a first detection result, and detecting whether the detection modules in the first optical module and the second optical module detect uncorrectable error codes to obtain a second detection result;
Determining a cause of a failure of a physical link of the optical module according to the first detection result and the second detection result, wherein the physical link of the optical module comprises: the first network device, the first optical module, the optical fiber link, the second optical module and the second network device are sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110343617.3A CN113315572B (en) | 2021-03-30 | 2021-03-30 | Detection method and device for optical module physical link, optical module and optical transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110343617.3A CN113315572B (en) | 2021-03-30 | 2021-03-30 | Detection method and device for optical module physical link, optical module and optical transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113315572A CN113315572A (en) | 2021-08-27 |
| CN113315572B true CN113315572B (en) | 2023-11-14 |
Family
ID=77371953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110343617.3A Active CN113315572B (en) | 2021-03-30 | 2021-03-30 | Detection method and device for optical module physical link, optical module and optical transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113315572B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114363740A (en) * | 2021-12-29 | 2022-04-15 | 中国电信股份有限公司 | Optical module, equipment, fronthaul link system and performance detection method thereof |
| CN114389688B (en) * | 2022-01-04 | 2023-06-13 | 烽火通信科技股份有限公司 | Method and device for predicting performance of optical module |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145438A1 (en) * | 2009-06-19 | 2010-12-23 | 中兴通讯股份有限公司 | Method and device for detecting fault of signal processing equipment and optical interface board online |
| CN102055523A (en) * | 2009-11-09 | 2011-05-11 | 中国移动通信集团江苏有限公司 | Method, equipment and system for diagnosing failure of passive optical network |
| CN104518826A (en) * | 2013-09-30 | 2015-04-15 | 华为技术有限公司 | Fiber fault monitoring method, equipment and system |
| EP3013068A1 (en) * | 2014-10-22 | 2016-04-27 | Alcatel Lucent | Method for generating protection switching information |
| WO2018141681A1 (en) * | 2017-02-01 | 2018-08-09 | British Telecommunications Public Limited Company | Optical fibre event location |
| CN108964757A (en) * | 2017-05-19 | 2018-12-07 | 北京华为数字技术有限公司 | Signal errors alarm method and device |
| CN110730036A (en) * | 2018-07-16 | 2020-01-24 | 瞻博网络公司 | Method and apparatus for adaptively detecting signal attenuation in optical communication systems using pre-fec ber |
| CN111385022A (en) * | 2018-12-29 | 2020-07-07 | 深圳市海思半导体有限公司 | Error code detection method and related equipment |
| CN111669250A (en) * | 2019-03-06 | 2020-09-15 | 华为技术有限公司 | Data transmission method, device and system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020138796A1 (en) * | 2001-03-23 | 2002-09-26 | Jacob John M. | Intelligent performance monitoring in optical networks using FEC statistics |
| US9071349B2 (en) * | 2006-10-13 | 2015-06-30 | Menara Networks, Inc. | Optical transceiver performance monitoring and alarming systems and methods |
| US8442398B2 (en) * | 2008-10-21 | 2013-05-14 | Broadcom Corporation | Performance monitoring in passive optical networks |
| JP5846222B2 (en) * | 2011-06-23 | 2016-01-20 | 日本電気株式会社 | Control device, communication system, communication method, and communication program |
| US9344219B2 (en) * | 2013-06-25 | 2016-05-17 | Intel Corporation | Increasing communication safety by preventing false packet acceptance in high-speed links |
-
2021
- 2021-03-30 CN CN202110343617.3A patent/CN113315572B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145438A1 (en) * | 2009-06-19 | 2010-12-23 | 中兴通讯股份有限公司 | Method and device for detecting fault of signal processing equipment and optical interface board online |
| CN102055523A (en) * | 2009-11-09 | 2011-05-11 | 中国移动通信集团江苏有限公司 | Method, equipment and system for diagnosing failure of passive optical network |
| CN104518826A (en) * | 2013-09-30 | 2015-04-15 | 华为技术有限公司 | Fiber fault monitoring method, equipment and system |
| EP3013068A1 (en) * | 2014-10-22 | 2016-04-27 | Alcatel Lucent | Method for generating protection switching information |
| WO2018141681A1 (en) * | 2017-02-01 | 2018-08-09 | British Telecommunications Public Limited Company | Optical fibre event location |
| CN108964757A (en) * | 2017-05-19 | 2018-12-07 | 北京华为数字技术有限公司 | Signal errors alarm method and device |
| CN110730036A (en) * | 2018-07-16 | 2020-01-24 | 瞻博网络公司 | Method and apparatus for adaptively detecting signal attenuation in optical communication systems using pre-fec ber |
| CN111385022A (en) * | 2018-12-29 | 2020-07-07 | 深圳市海思半导体有限公司 | Error code detection method and related equipment |
| CN111669250A (en) * | 2019-03-06 | 2020-09-15 | 华为技术有限公司 | Data transmission method, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113315572A (en) | 2021-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113315572B (en) | Detection method and device for optical module physical link, optical module and optical transmission system | |
| US8755285B2 (en) | Method, system and apparatus for diagnosing physical downlink failure | |
| CN111147342B (en) | MVB bus fault diagnosis method and system based on communication chip | |
| CN105450292A (en) | Fault diagnosis analysis method, fault diagnosis device, fault analysis device and fault diagnosis analysis system | |
| RU2602977C2 (en) | Method for detecting correctness of optic fibre connection based on radio remote unit (rru) looped network and base band unit (bbu) | |
| CN110417464B (en) | Fault processing method and device, computer device and readable storage medium | |
| CN105547643A (en) | Optical-electric module detection method | |
| JP6684441B2 (en) | Optical communication system, optical communication device, optical communication diagnostic monitoring method, and optical communication diagnostic monitoring program | |
| CN106324420B (en) | A kind of display fault detection method | |
| CN117271234A (en) | Fault diagnosis method and device, storage medium and electronic device | |
| US9960886B2 (en) | Noise detection device | |
| CN116506340A (en) | Flow link testing method and device, electronic equipment and storage medium | |
| CN110768871A (en) | Test method and system for automatically counting data transmission correctness of DCS (distributed control system) | |
| CN116436833A (en) | Fault diagnosis method, device and equipment in switch port test | |
| CN116137603A (en) | Link fault detection method and device, storage medium and electronic device | |
| CN115729872A (en) | Computing device and detection method for PCIE cable connection | |
| CN108549042A (en) | A kind of NVME LED detecting systems and detection method | |
| CN113992501A (en) | Fault positioning system, method and computing device | |
| CN112947041A (en) | High-reliability dual-redundancy voting method for front-end and rear-end hosts of carrier rocket | |
| CN113872827A (en) | Method and device for analyzing snakelike test failure of switch and storage medium | |
| CN105446857A (en) | Fault diagnosis method and system | |
| CN116382968B (en) | Fault detection method and device for external equipment | |
| CN105044552A (en) | Fault diagnosis method, system and device for distribution network automation system | |
| CN115543679B (en) | Liquid leakage detection line detection method, system, device, server and electronic equipment | |
| US11797375B2 (en) | System for debugging server startup sequence in debugging method applied in server |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 40069587 Country of ref document: HK |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240308 Address after: # 03-06, Lai Zan Da Building 1, 51 Belarusian Road, Singapore Patentee after: Alibaba Innovation Co. Country or region after: Singapore Address before: Room 01, 45th Floor, AXA Building, 8 Shanton Road, Singapore Patentee before: Alibaba Singapore Holdings Ltd. Country or region before: Singapore |
|
| TR01 | Transfer of patent right |