CN117955873A - Crosstalk fault detection method, device, network system and computer storage medium - Google Patents

Crosstalk fault detection method, device, network system and computer storage medium Download PDF

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Publication number
CN117955873A
CN117955873A CN202211275996.8A CN202211275996A CN117955873A CN 117955873 A CN117955873 A CN 117955873A CN 202211275996 A CN202211275996 A CN 202211275996A CN 117955873 A CN117955873 A CN 117955873A
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China
Prior art keywords
bandwidth allocation
bandwidth
network
crosstalk
fault detection
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CN202211275996.8A
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Chinese (zh)
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李明生
张伟良
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ZTE Corp
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ZTE Corp
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Priority to CN202211275996.8A priority Critical patent/CN117955873A/en
Priority to PCT/CN2023/098999 priority patent/WO2024082650A1/en
Publication of CN117955873A publication Critical patent/CN117955873A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Small-Scale Networks (AREA)

Abstract

The application provides a crosstalk fault detection method of network bandwidth, which comprises the following steps: capturing bandwidth allocation results of different channels in a network; and checking the overlapping condition of bandwidth allocation of the optical network units of different channels according to the acquired bandwidth allocation results of the different channels, and obtaining the bandwidth crosstalk fault condition of the network according to the error code condition of the OLT side. The application also provides a crosstalk fault detection device, a network system and a computer storage medium. The technical scheme of the application not only solves the problem of error code when the OLT receives data, but also greatly reduces the cost.

Description

Crosstalk fault detection method, device, network system and computer storage medium
Technical Field
The present application relates to the field of network communications technologies, and in particular, to a method and apparatus for detecting crosstalk faults of a network bandwidth, a network system, and a computer storage medium.
Background
Currently, the FTTx market deploys a large number of GPON (Gigabit-Capable PON) systems, and as standards are upgraded and user requirements increase, the GPON systems begin to evolve gradually towards XG (S) -PON upgrades. The GPON and XG (S) -PON coexist in a wavelength division manner, that is, the downstream wavelength of the GPON and XG (S) -PON is different, and the upstream wavelength is also different. In the process of upgrading evolution, the GPON and the XG (S) -PON may coexist in the same ODN (Optical Distribution Network, optical wiring network) at the same time, i.e., the GPON system and the XG (S) -PON system exist in the same ODN.
In practical tests, it was found that there is a case where XG (S) -PON ONU (Optical Network Unit ) affects the GPON OLT (Optical LINE TERMINAL ) reception sensitivity, resulting in bit errors. As shown in fig. 4, the transmission optical signal of the XG-PON ONU carries a higher power spectral density signal in the GPON band. For this, the standards organization proposes to define the OOB PSD (Out of Band Power SPECTRAL DENSITY, out-of-band power spectral density) of XG (S) -PON ONUs. But the cost of XG (S) -PON ONUs needs to be increased and the overall cost is high due to the large number of ONUs side.
Therefore, there is a need to propose a solution to the problem of error code occurring when the OLT receives data at low cost.
Disclosure of Invention
The application provides a crosstalk fault detection method, a device, a network system and a computer storage medium for network bandwidth, aiming at solving the problem of error code when an OLT receives data at low cost.
In a first aspect, the present application provides a method for detecting crosstalk faults of a network bandwidth, including:
Capturing bandwidth allocation results of different channels in a network;
and checking the overlapping condition of bandwidth allocation of the optical network units of different channels according to the grasped bandwidth allocation results of different channels, and obtaining the bandwidth crosstalk fault result of the network according to the error code condition of the network terminal side.
In some embodiments, the step of grabbing the bandwidth allocation results of different channels in the network includes:
And when a crosstalk fault detection instruction issued by the network management system is received, capturing bandwidth allocation results of different channels at the current moment in the network.
In some embodiments, the step of grabbing the bandwidth allocation results of different channels in the network includes: timely grabbing bandwidth allocation results of different channels in a network;
the bandwidth crosstalk fault detection method further comprises the following steps: and acquiring the situation of error codes when the network terminal side receives data.
In some embodiments, the step of checking the overlapping condition of bandwidth allocation of the optical network units of different channels according to the grasped bandwidth allocation result of different channels, and obtaining the bandwidth crosstalk fault condition of the network according to the error condition of the network terminal side includes:
If the error code exists, determining the optical network units of other channels overlapping the bandwidth of the optical network unit with the error code in time sequence according to the bandwidth allocation results of the different channels acquired by time sequence comparison, and putting the optical network units into a fault source set with crosstalk faults.
In some embodiments, the step of checking the overlapping condition of bandwidth allocation of the optical network units of different channels according to the grasped bandwidth allocation result of different channels, and obtaining the bandwidth crosstalk fault condition of the network includes:
And if the error code does not exist, determining that the optical network units with overlapped bandwidths exist on the time sequence according to the bandwidth allocation results of the different captured channels by time sequence comparison, and putting the optical network units to a set without crosstalk faults.
In some embodiments, the bandwidth allocation result includes a start time and an end time of the bandwidth allocation; the bandwidth crosstalk fault detection method further comprises the following steps:
When the starting time of the bandwidth allocation of the optical network unit of the first channel is within the range of the starting time and the ending time of the bandwidth allocation of the optical network unit of the second channel, or the ending time of the bandwidth allocation of the optical network unit of the first channel is within the range of the starting time and the ending time of the bandwidth allocation of the optical network unit of the second channel, determining that bandwidth overlapping exists between the optical network unit of the first channel and the optical network unit of the second channel;
When the start time of the optical network unit bandwidth allocation of the second channel is within the range of the start time and the end time of the optical network unit bandwidth allocation of the first channel or the end time of the optical network unit bandwidth allocation of the second channel is within the range of the start time and the end time of the optical network unit bandwidth allocation of the first channel, it is determined that there is a bandwidth overlap between the optical network units of the first channel and the optical network units of the second channel.
In some embodiments, the bandwidth crosstalk fault detection method further includes:
and when a crosstalk fault detection instruction issued by the network management system is received, solidifying the bandwidth allocation results of different channels at the current moment until the bandwidth crosstalk fault condition of the network is obtained, and canceling the solidified bandwidth allocation results.
In some embodiments, the bandwidth crosstalk fault detection method further includes:
And storing the acquired bandwidth allocation result and the situation of error code when the network terminal side receives data so as to obtain the bandwidth crosstalk fault situation of the network according to the stored information analysis.
The embodiment of the application also provides a crosstalk fault detection device of the network bandwidth, which comprises the following steps:
the grabbing module is configured to grab bandwidth allocation results of different channels in the network;
The fault analysis module is configured to check the overlapping condition of bandwidth allocation of the optical network units of different channels according to the grasped bandwidth allocation results of different channels, and obtain the bandwidth crosstalk fault condition of the network according to the error code condition of the network terminal side.
The embodiment of the application also provides a network system, which comprises a crosstalk fault detection device, wherein the crosstalk fault detection device comprises a processor and a memory, and a program for detecting the crosstalk fault of the network bandwidth is stored in the memory and is called by the processor to execute the crosstalk fault detection method of any embodiment.
The embodiment of the application also provides a computer storage medium, which stores a computer processing program, wherein the computer processing program is used for being called by a processor to execute the crosstalk fault detection method of any embodiment.
According to the embodiment of the application, the bandwidth allocation results of different channels are grasped in the network transmission process, so that the bandwidth allocation results are analyzed, and the crosstalk fault condition is determined, so that the function of the existing system is not required to be modified, the realization cost is low, the crosstalk fault can be rapidly positioned, and the problem of error code when the OLT receives data is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a flow chart of a crosstalk fault detection method for implementing a network bandwidth according to a first embodiment of the present application;
Fig. 2 is a flow chart of a crosstalk fault detection method of network bandwidth according to a second embodiment of the present application;
fig. 3 is a schematic functional block diagram of a crosstalk fault detection device of network bandwidth according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a network system according to the present application, where the network system includes an XG (S) -PON system and a GPON system.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments. Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element, and furthermore, elements having the same name in different embodiments of the application may have the same meaning or may have different meanings, the particular meaning of which is to be determined by its interpretation in this particular embodiment or by further combining the context of this particular embodiment.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" depending on the context. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or", "and/or", "including at least one of", and the like, as used herein, may be construed as inclusive, or mean any one or any combination. For example, "including at least one of: A. b, C "means" any one of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C ", again as examples," A, B or C "or" A, B and/or C "means" any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.
It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
It should be noted that, in this document, step numbers such as S10 and S20 are adopted, and the purpose of the present application is to more clearly and briefly describe the corresponding content, and not to constitute a substantial limitation on the sequence, and those skilled in the art may execute S20 first and then execute S10 when implementing the present application, which is within the scope of protection of the present application.
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In the following description, suffixes such as "module", "part" or "unit" for representing elements are used only for facilitating the description of the present application, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.
In the process of the GPON evolving towards XG (S) -PON, the GPON and XG (S) -PON may coexist in the same ODN (Optical Distribution Network, optical wiring network) at the same time, i.e. there is both a GPON system and an XG (S) -PON system in the same ODN.
In practical use, there is a situation that the optical network units of XG (S) -PON and the optical network units of GPON overlap in bandwidth, so that there is a situation that crosstalk occurs when two optical network units with overlapping bandwidths simultaneously transmit signals. The cooperative DBA (DYNAMICALLY BANDWIDTH ASSIGNMENT, dynamic bandwidth allocation) of GPON and XG (S) -PON is the optimal solution to this interference problem between different channels.
However, in the existing system, the OLT dynamically allocates bandwidth according to the traffic condition of the ONUs, and then the BWmap (bandwidth allocation map) of each period, that is, the bandwidth allocation result of the GPON and the bandwidth allocation result of the XG (S) -PON, are dynamically changed over time, so that at a certain moment, the bandwidths of two ONUs that affect each other may overlap, or may not overlap, and it is difficult to locate if there is an OOB crosstalk fault between them. And because the system functions are fixed, the functions of OOB crosstalk fault positioning, avoiding and the like cannot be realized by modifying the system functions.
Therefore, the embodiment of the application provides a method for realizing OOB crosstalk positioning in the existing system. Referring to fig. 1, a crosstalk fault detection method according to a first embodiment of the present application includes:
s10, capturing bandwidth allocation results of different channels in a network;
In an embodiment, the capturing of the bandwidth allocation result may have multiple triggering manners. If the crosstalk fault detection instruction issued by the network management system is received, triggering the grabbing of the bandwidth allocation result; or setting time through a timer, and triggering grabbing of the bandwidth allocation result at fixed time. The crosstalk fault detection instruction can be issued by the network management system when the error code occurs in the received data of the OLT network terminal side, or can be issued by the network management system when the error code occurs in the received data of the OLT network terminal side.
In one embodiment, when a crosstalk fault detection instruction issued by a network management system is received, bandwidth allocation results of different channels at the current moment in a network are grabbed. E.g. the bandwidth allocation results for different channels of GPON and XG (S) -PON systems. In an embodiment, the bandwidth allocation result comprises a plurality of bandwidth entries, which are T-CONT (transport container) allocated to the system ONU, each bandwidth entry comprising a start time and an end time of the bandwidth allocation, or comprising a start time and a time length of the bandwidth allocation, which are converted into a start time and an end time.
In another embodiment, when bandwidth allocation results of different channels in the network are captured at regular time, the situation of error code occurring when the network terminal side receives data can be obtained at the same time.
S30, according to the grasped bandwidth allocation results of different channels, the overlapping condition of the bandwidth allocation of the optical network units of different channels is checked, and according to the error code condition of the network terminal side, the bandwidth crosstalk fault result of the network is obtained.
In an embodiment, bandwidth allocation results of different channels are analyzed, and whether bandwidth entries overlap in time sequence is determined, so that it is determined that bandwidth overlapping exists between optical network units corresponding to the overlapping bandwidth entries. The method comprises the following steps:
When the start time of the optical network unit bandwidth allocation of the first channel is within the range of the start time and the end time of the optical network unit bandwidth allocation of the second channel or the end time of the optical network unit bandwidth allocation of the first channel is within the range of the start time and the end time of the optical network unit bandwidth allocation of the second channel, it is determined that there is a bandwidth overlap between the optical network units of the first channel and the optical network units of the second channel.
When the start time of the optical network unit bandwidth allocation of the second channel is within the range of the start time and the end time of the optical network unit bandwidth allocation of the first channel or the end time of the optical network unit bandwidth allocation of the second channel is within the range of the start time and the end time of the optical network unit bandwidth allocation of the first channel, it is determined that there is a bandwidth overlap between the optical network unit of the second channel and the optical network unit of the first channel.
After the optical network units with overlapping bandwidths are determined, checking whether the error code exists or not, and if the error code exists continuously, determining the corresponding optical network unit as a crosstalk fault source. Taking the case that the error code exists at the OLT side of the GPON as an example, the ONU of the XG (S) -PON having the bandwidth overlapping with the ONU at the OLT side of the GPON is determined, and the ONU is determined as the crosstalk failure source.
In some embodiments, clock synchronization is required for different channels before performing the bandwidth overlap determination, so as to ensure that the bandwidth allocation time of the different channels is based on the same start time, thereby ensuring the accuracy of the bandwidth overlap determination.
The embodiment of the application does not need to modify the functions of the existing system, but analyzes the bandwidth allocation results by grabbing the bandwidth allocation results of different channels in the network transmission process, thereby determining the crosstalk fault condition.
In an embodiment, when a crosstalk fault detection instruction issued by a network management system under the condition that error occurs in data received by an OLT of a network terminal or when error occurs in data captured at regular time, a process of analyzing a bandwidth allocation result to determine a crosstalk fault condition is as follows:
and determining the optical network units of other channels overlapping the bandwidth of the optical network unit with the error code in time sequence according to the bandwidth allocation results of the different channels acquired in time sequence comparison, and putting the optical network units into a fault source set with crosstalk faults.
Specifically, if an error occurs when the GPON OLT receives data, determining a bandwidth entry corresponding to the optical network unit in which the error occurs from the bandwidth allocation result of the captured GPON OLT, which is referred to herein as a first bandwidth entry; then determining a second bandwidth item overlapped with the first bandwidth item in time sequence from the bandwidth allocation result of the grabbed XG (S) -PON; and finally, acquiring an optical network unit corresponding to the second bandwidth entry, and if the error code still exists, taking the optical network unit as a crosstalk fault source and putting the crosstalk fault source into a fault source set of the crosstalk fault.
In another embodiment, when the crosstalk fault detection instruction issued by the network management system in the daily maintenance is received by the network terminal OLT at this time, when no error occurs during receiving the data or when no error exists in the data captured at regular time, the process of analyzing the bandwidth allocation result to determine the crosstalk fault condition is as follows:
and determining that the optical network units with overlapping bandwidths in time sequence are used as a set without crosstalk faults according to the bandwidth allocation results of the different captured channels in time sequence comparison.
Specifically, if no error code occurs on the GPON OLT side, determining that an optical network unit corresponding to an overlapping bandwidth item does not exist in time sequence from the bandwidth allocation result of the GPON OLT and the bandwidth allocation result of the XG (S) -PON, if no error code occurs, determining that an OOB crosstalk fault does not exist, and placing the optical network units to a set without crosstalk fault, thereby reducing the range of the optical network unit with potential OOB crosstalk, and providing a powerful support for fast positioning the OOB crosstalk fault subsequently.
Referring to fig. 2, based on the crosstalk fault method according to the first embodiment of the present application, the crosstalk fault detection method according to the second embodiment of the present application further includes:
S20, when a crosstalk fault detection instruction issued by the network management system is received, solidifying the bandwidth allocation results of different channels at the current moment until the bandwidth crosstalk fault condition of the network is obtained, and canceling the solidified bandwidth allocation results.
In a specific embodiment, when crosstalk fault detection is required, the network management system will send commands to each coexisting system, for example, GPON OLT and XG (S) -PON system, so that each system solidifies the bandwidth allocation result at the current moment, that is, each system stops performing the bandwidth allocation result, and continues to send the current bandwidth allocation result. After the bandwidth crosstalk fault condition of the network is obtained according to the analysis of the solidified bandwidth allocation result, the solidified bandwidth allocation result is canceled, and then each system can perform normal bandwidth allocation.
According to the embodiment of the application, after the bandwidth allocation result is solidified, the crosstalk fault condition can be detected more accurately.
Based on the foregoing embodiments, the crosstalk fault detection method according to the third embodiment of the present application further includes:
And storing the acquired bandwidth allocation result and the situation of error code when the network terminal side receives data so as to obtain the bandwidth crosstalk fault situation of the network according to the stored information analysis.
In the above embodiment, after capturing the bandwidth allocation result, the situation of error code occurring when the network terminal side receives the data may be obtained at the same time, and the bandwidth allocation result and the situation of error code may be stored together. When needed, the stored information can be retrieved, the analysis of the bandwidth allocation result can be performed, and the OOB crosstalk fault condition can be determined.
The embodiment of the application stores the bandwidth allocation result and the error code condition, thereby realizing the flexibility of crosstalk fault detection, for example, the crosstalk fault detection can be carried out by selecting proper time according to the requirement, and the crosstalk fault detection can also be carried out offline.
The above embodiment can be applied to OOB crosstalk fault detection between a GPON ONU and an XG (S) -PON ONU, and OOB crosstalk fault detection between different upstream channels, and OOB crosstalk fault detection processing may also be performed with reference to the embodiment of the present application, which is not described herein.
The above embodiment may include the following several application scenarios when applied specifically.
Application example one
When the uplink data of the ONU is received by the GPON OLT and error codes occur, error code events are reported to a network management system, an operation and maintenance personnel can send commands to the GPON and XG (S) -PON systems through the network management system, bandwidth allocation results of the GPON and the XG (S) -PON are solidified, namely the GPON and the XG (S) -PON stop updating the bandwidth allocation results, and the current bandwidth allocation results are continuously sent. Of course, the network management system can also automatically trigger and send commands according to error code events.
The BWMap of the GPON and the BWMap of the XG (S) -PON are read at this time, and compared in time sequence, including determining bandwidth entries corresponding to GPON ONUs where errors occur, determining bandwidth entries corresponding to the XG (S) -PON ONUs where the bandwidth entries overlap in time sequence, checking to which ONU the T-CONT of the bandwidth entries belongs, and if the errors continue, listing the XG (S) -PON ONUs as sources of OOB crosstalk faults. The solidified BWmap is then canceled and the normal bandwidth allocation process continues. This process is repeated to gradually narrow the range of XG (S) -PON ONUs that produce OOB crosstalk failure, and even to determine a unique one.
The embodiment is used for detecting two ONUs generating OOB crosstalk faults with each other in time by solidifying BWMap and checking the overlapping condition of bandwidth allocation when the error code occurs, so that operation and maintenance personnel can further take engineering measures to eliminate and avoid the OOB crosstalk faults.
In this embodiment, taking the OOB crosstalk of the XG (S) -PON ONU to the GPON ONU as an example, the OOB crosstalk processing of the GPON ONU to the XG (S) -PON ONU is similar in practice, and will not be described again.
Application example two
In daily maintenance detection, the OLT side generally receives no error code, at this time, an operator can send a command to the GPON OLT and the XG (S) -PON OLT through a network management system, solidify the bandwidth allocation results of the GPON OLT and the XG (S) -PON OLT, check the XG (S) -PON ONU and the GPON ONU with overlapping bandwidths currently, determine that the ONUs have no OOB crosstalk fault when no error code is confirmed, and put the ONUs to a set with no crosstalk fault.
The embodiment is used for daily maintenance detection, and by solidifying BWMap and checking the bandwidth allocation overlapping condition and the error-free condition, the embodiment judges which ONUs have no OOB crosstalk fault so as to reduce the range of the ONU with the potential OOB crosstalk fault and provide powerful support for the subsequent rapid positioning of the OOB crosstalk fault.
In this embodiment, taking the OOB crosstalk of the XG (S) -PON ONU to the GPON ONU as an example, the OOB crosstalk processing of the GPON ONU to the XG (S) -PON ONU is similar in practice, and will not be described again.
Application example three
The network management system can initiate the OOB crosstalk fault detection flow when appropriate, and solidify BWMap of the GPON OLT and the XG (S) -PON OLT, for example, when error code is detected at the GPON OLT side, the BWMap can also be required by conventional detection.
And judging whether the GPON OLT or the XG (S) -PON OLT side detects the error code. If the GPON OLT or XG (S) -PON OLT side detects the error code, determining the ONU with the error code, checking the bandwidth item of the ONU overlapped with the bandwidth item of the ONU in time sequence, wherein the ONU is temporarily listed as an OOB crosstalk fault source, comprehensively processing the ONU with the previous OOB crosstalk fault source and the OOB crosstalk fault set, and updating the OOB crosstalk fault source. The BWmap curing is canceled, normal bandwidth allocation is continued, and BWmap curing is continued as needed.
If the GPON OLT or XG (S) -PON OLT side does not detect the error code, detecting the ONU with the bandwidth items with time sequence overlapping, and updating the OOB-free crosstalk fault set without OOB crosstalk faults between the ONU. The BWmap curing is canceled, normal bandwidth allocation is continued, and BWmap curing is continued as needed.
Application example four
In the network transmission process, the bandwidth allocation result of the GPON OLT, the bandwidth allocation result of the XG (S) -PON, the reception error condition of the GPON OLT side, and the reception error condition of the XG (S) -PON OLT side can be obtained simultaneously, then the information can be obtained at a specific time, and for the information, the OOB crosstalk fault condition can be analyzed in real time, and of course, the information can be stored first for subsequent offline analysis of the OOB crosstalk fault condition.
The foregoing is merely a reference example, and in order to avoid redundancy, it is not necessary to use any combination in practical development or application, but any combination belongs to the technical solution of the present application, and is covered in the protection scope of the present application.
Referring to fig. 3, an embodiment of the present application further provides a crosstalk fault detection apparatus, including:
a grabbing module 10 configured to grab bandwidth allocation results of different channels in the network;
The fault analysis module 20 is configured to check the overlapping condition of the bandwidth allocation of the optical network units of different channels according to the grasped bandwidth allocation results of different channels, and obtain the bandwidth crosstalk fault condition of the network.
The present embodiment implements the principle of crosstalk fault detection between channels with different network bandwidths, please refer to the above embodiments, and will not be described herein.
The application also provides a network system, which comprises each coexisting subsystem and a crosstalk fault detection device, wherein the crosstalk fault detection device comprises a memory and a processor, and a processing program is stored in the memory and is executed by the processor to realize the steps of the crosstalk fault detection method in any embodiment.
The present application also provides a computer readable storage medium, on which a processing program is stored, which when executed by a processor, implements the steps of the crosstalk fault detection method in any of the above embodiments.
In the embodiments of the network system and the computer readable storage medium provided by the present application, all the technical features of any one of the embodiments of the processing method may be included, and the expansion and explanation contents of the description are substantially the same as those of each embodiment of the method, which are not repeated herein.
Embodiments of the present application also provide a computer program product comprising computer program code which, when run on a computer, causes the computer to perform the method as in the various possible embodiments described above.
It can be understood that the above scenario is merely an example, and does not constitute a limitation on the application scenario of the technical solution provided by the embodiment of the present application, and the technical solution of the present application may also be applied to other scenarios. For example, as one of ordinary skill in the art can know, with the evolution of the system architecture and the appearance of new service scenarios, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.
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.
The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.
The units in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.
In the present application, the same or similar term concept, technical solution and/or application scenario description will be generally described in detail only when first appearing and then repeatedly appearing, and for brevity, the description will not be repeated generally, and in understanding the present application technical solution and the like, reference may be made to the previous related detailed description thereof for the same or similar term concept, technical solution and/or application scenario description and the like which are not described in detail later.
In the present application, the descriptions of the embodiments are emphasized, and the details or descriptions of the other embodiments may be referred to.
The technical features of the technical scheme of the application can be arbitrarily combined, and all possible combinations of the technical features in the above embodiment are not described for the sake of brevity, however, as long as there is no contradiction between the combinations of the technical features, the application shall be considered as the scope of the description of the application.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of 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) as above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to perform the method of each embodiment of the present application.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc., that contain an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, storage disks, magnetic tape), optical media (e.g., DVD), or semiconductor media (e.g., solid state storage disk Solid STATE DISK (SSD)), etc.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (11)

1. A method for crosstalk fault detection of network bandwidth, comprising:
Capturing bandwidth allocation results of different channels in a network;
and checking the overlapping condition of bandwidth allocation of the optical network units of different channels according to the grasped bandwidth allocation results of different channels, and obtaining the bandwidth crosstalk fault result of the network according to the error code condition of the network terminal side.
2. The crosstalk fault detection method according to claim 1, wherein the step of grabbing the bandwidth allocation results of different channels in the network comprises:
And when a crosstalk fault detection instruction issued by the network management system is received, capturing bandwidth allocation results of different channels at the current moment in the network.
3. The crosstalk fault detection method according to claim 1, wherein the step of grabbing the bandwidth allocation results of different channels in the network comprises: timely grabbing bandwidth allocation results of different channels in a network;
the bandwidth crosstalk fault detection method further comprises the following steps: and acquiring the situation of error codes when the network terminal side receives data.
4. The crosstalk fault detection method according to claim 2 or 3, wherein the step of checking the overlapping condition of bandwidth allocation of the optical network units of different channels according to the grasped bandwidth allocation results of different channels, and obtaining the bandwidth crosstalk fault condition of the network according to the error condition of the network terminal side comprises:
If the error code exists, determining the optical network units of other channels overlapping the bandwidth of the optical network unit with the error code in time sequence according to the bandwidth allocation results of the different channels acquired by time sequence comparison, and putting the optical network units into a fault source set with crosstalk faults.
5. The crosstalk fault detection method according to claim 2 or 3, wherein the step of checking the overlapping condition of bandwidth allocation of the optical network units of different channels according to the grasped bandwidth allocation results of different channels, and obtaining the bandwidth crosstalk fault condition of the network according to the error condition of the network terminal side comprises:
And if the error code does not exist, determining that the optical network units with overlapped bandwidths exist on the time sequence according to the bandwidth allocation results of the different captured channels by time sequence comparison, and putting the optical network units to a set without crosstalk faults.
6. The crosstalk fault detection method according to claim 1, wherein the bandwidth allocation result comprises a start time and an end time of bandwidth allocation; the bandwidth crosstalk fault detection method further comprises the following steps:
When the starting time of the bandwidth allocation of the optical network unit of the first channel is within the range of the starting time and the ending time of the bandwidth allocation of the optical network unit of the second channel, or the ending time of the bandwidth allocation of the optical network unit of the first channel is within the range of the starting time and the ending time of the bandwidth allocation of the optical network unit of the second channel, determining that bandwidth overlapping exists between the optical network unit of the first channel and the optical network unit of the second channel;
When the start time of the optical network unit bandwidth allocation of the second channel is within the range of the start time and the end time of the optical network unit bandwidth allocation of the first channel or the end time of the optical network unit bandwidth allocation of the second channel is within the range of the start time and the end time of the optical network unit bandwidth allocation of the first channel, it is determined that there is a bandwidth overlap between the optical network units of the first channel and the optical network units of the second channel.
7. The crosstalk fault detection method according to claim 1, characterized in that the bandwidth crosstalk fault detection method further comprises:
and when a crosstalk fault detection instruction issued by the network management system is received, solidifying the bandwidth allocation results of different channels at the current moment until the bandwidth crosstalk fault condition of the network is obtained, and canceling the solidified bandwidth allocation results.
8. The crosstalk fault detection method according to claim 1, characterized in that the bandwidth crosstalk fault detection method further comprises:
And storing the acquired bandwidth allocation result and the situation of error code when the network terminal side receives data so as to obtain the bandwidth crosstalk fault situation of the network according to the stored information analysis.
9. A crosstalk fault detection apparatus for network bandwidth, comprising:
the grabbing module is configured to grab bandwidth allocation results of different channels in the network;
The fault analysis module is configured to check the overlapping condition of bandwidth allocation of the optical network units of different channels according to the grasped bandwidth allocation results of different channels, and obtain the bandwidth crosstalk fault condition of the network according to the error code condition of the network terminal side.
10. A network system comprising a crosstalk fault detection device, the crosstalk fault detection device comprising a processor and a memory, the memory having stored thereon a program for detecting a crosstalk fault of a network bandwidth, the program being called by the processor to perform the crosstalk fault detection method according to any one of claims 1-8.
11. A computer storage medium, characterized in that a computer processing program is stored, which is called by a processor, for executing the crosstalk fault detection method according to any of claims 1-8.
CN202211275996.8A 2022-10-18 2022-10-18 Crosstalk fault detection method, device, network system and computer storage medium Pending CN117955873A (en)

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CN101110648B (en) * 2006-07-18 2010-11-24 华为技术有限公司 Method for detecting faulted ONU in PON
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