CN111954101A - Method and device for detecting repeated ALLOC ID in GPON system - Google Patents
Method and device for detecting repeated ALLOC ID in GPON system Download PDFInfo
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- CN111954101A CN111954101A CN202010680707.7A CN202010680707A CN111954101A CN 111954101 A CN111954101 A CN 111954101A CN 202010680707 A CN202010680707 A CN 202010680707A CN 111954101 A CN111954101 A CN 111954101A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0083—Testing; Monitoring
Abstract
The invention discloses a method for detecting repeated ALLOC ID in a GPON system, which comprises the following steps: judging whether ONU frequently goes on and off the line or whether certain type of service of the ONU is not on the line or not, if so, possibly caused by repeating ALLOC ID; positioning the ONU which preliminarily judges the fault caused by the influence of the repeated ALLOC ID by judging whether the optical power is normal or not and judging whether a bit interleaved parity error or a frame header error control error or a frame delimitation error exists or not; and for the ONU which is preliminarily judged to have faults caused by the influence of the repeated ALLOC ID, allocating the service ALLOC ID of the ONU one by one, allocating bandwidth authorization to each ALLOC ID one by one, and determining the ONU with the repeated ALLOC ID by capturing the uplink burst corresponding to the ALLOC ID. The invention quickly finds out the abnormal ONU by means of a bandwidth allocation mechanism of the GPON system and isolates the abnormal ONU. The invention also provides a device for detecting the repeated ALLOC ID in the corresponding GPON system.
Description
Technical Field
The invention belongs to the technical field of optical communication, and particularly relates to a method and a device for detecting repeated ALLOC ID in a GPON system.
Background
With the complete landing of 'Optical copper entering and exiting' in the last kilometer of a broadband access Network, the technology and equipment of a Passive Optical Network (PON) are applied in a large scale. The PON system is composed of an OLT (Optical Line Terminal), an ODN (Optical Distribution Network), and an ONU (Optical Network Unit). In an engineering scene of a Gigabit-Capable Passive Optical network (GPON) system, there often exists a problem that due to software or hardware of an ONU, uplink light emission of some ONUs is controlled by the OLT, an uplink transmission window can normally transmit according to authorization of the OLT, but the ONU erroneously occupies a logic channel and a time window of other ONUs, thereby causing some types of services of other ONUs to be different or to be frequently accessed and disconnected. For example, after a certain ONU is forcibly kicked off the line by the OLT, the ONU still occupies the original ALLOC ID (Allocation Identifier) and does not release the ONU because the ONU has no real offline due to its own problem; the OLT side assumes that the ALLOC ID is released, so that the ALLOC ID is re-allocated to the ONU which is newly on-line; at this time, two ONUs with the same ALLOC ID exist in the whole network, and a normal ONU which is newly on-line cannot normally transmit uplink data, which is represented by that certain types of fixed services are not passed or are frequently on and off-line.
For duplicate ALLOC IDs, there are two existing solutions: (1) one of the existing methods for solving the problem of repeating ALLOC ID is to manually turn off all ONU lasers under the PON port or power off one by one, observe whether the phenomenon disappears, and if the phenomenon disappears, the ONU is the ONU repeating ALLOC ID; (2) the second existing method for solving the problem of repeating ALLOC ID is to manually and gradually pull out the lower branch optical fiber of the PON port, observe whether the phenomenon disappears, and if the phenomenon disappears, the ONU is the ONU repeating ALLOC ID.
The two modes are blind and rough, have low efficiency, and affect all normal services of the affected ONU, so that all the services of the ONU are obstructed. In extreme cases, it may cause service interruption for all ONUs. Therefore, how to adopt a method which is fast and effective and has small influence on the service to detect the ONU with the repeated ALLOC ID has great significance for equipment manufacturers, the operation and maintenance efficiency of equipment can be improved, the cost performance of products is improved, and the perception of customers is improved.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides an optimized detection method for repeated ALLOC ID. By analyzing the statistical data of the ONU and the online and offline behaviors of the ONU, the abnormal ONU is quickly found out and isolated by virtue of a bandwidth allocation mechanism of a GPON system.
To achieve the above object, according to an aspect of the present invention, there is provided a method for detecting duplicate ALLOC IDs in a GPON system, including:
s1, judging whether ONU frequently goes on and off line or certain service of ONU is not on, if so, it may be caused by repeating ALLOC ID;
s2, positioning the ONU which is preliminarily judged to have faults caused by the influence of repeated ALLOC ID by judging whether the optical power is normal or not and judging whether bit interleaved parity check errors or frame header error control errors or frame delimitation errors exist or not;
and S3, for the ONU which is preliminarily judged to have faults caused by the influence of the repeated ALLOC ID, allocating the service ALLOC ID of the ONU one by one, allocating bandwidth authorization to each ALLOC ID one by one, and determining the ONU with the repeated ALLOC ID by capturing the uplink burst corresponding to the ALLOC ID.
In an embodiment of the present invention, the step S2 includes:
judging whether the optical power is normal or not, if so, determining that no repeated ALLOC ID exists, if not, determining whether bit interleaved parity error or frame header error control error or frame delimitation error exists, if not, determining that the ONU with the error possibly is the ONU with the repeated ALLOC ID, and positioning to the ONU which is preliminarily determined to be affected by the repeated ALLOC ID and cause the fault.
In an embodiment of the present invention, in step S3, for an ONU that is preliminarily determined to have a fault due to being affected by a duplicate ALLOC ID, service ALLOC IDs of the ONU are allocated one by one, specifically:
and for the ONU which is preliminarily judged to have faults due to the influence of the repeated ALLOC ID, distributing the business ALLOC ID of the ONU one by one through a physical layer operation, administration and maintenance PLOAM message.
In an embodiment of the present invention, in step S3, bandwidth grants are allocated to all ALLOC IDs one by one, and an ONU that repeats an ALLOC ID is determined by capturing an upstream burst corresponding to the ALLOC ID, which specifically includes:
and allocating bandwidth authorization to the transmission container T-CONT corresponding to the ALLOC ID, starting to capture an uplink transmission burst from an ONU side, and if the uplink burst corresponding to the ALLOC ID can be captured, determining that ONU-ID information carried by an uplink physical layer overhead PLou part in the uplink burst is an ONU repeating the ALLOC ID, wherein the ALLOC ID is the repeated ALLOC ID.
In an embodiment of the present invention, the S3 further includes: and after the ONU with the repeated ALLOC ID is detected, resetting the ONU or removing the ONU from the network, so that the affected ONU returns to normal.
In one embodiment of the invention, the method further comprises:
and S4, if the fault phenomenon still exists, all the service ALLOC IDs of all the rest ONUs are allocated, then bandwidth authorization is allocated to all ALLOC IDs one by one, an uplink burst window is captured, the corresponding malicious ONU IDs are obtained, and the ONUs are reset or removed, so that the affected ONU services are recovered to be normal.
In one embodiment of the invention, the method further comprises:
s5, if the phenomenon still cannot be eliminated, this indicates that there is an uncontrolled ONU in the PON system, and the uncontrolled ONU is found out by turning off the ONU, powering off the ONU one by one, or pulling out a branch optical fiber.
According to another aspect of the present invention, there is provided an apparatus for detecting duplicate ALLOC IDs in a GPON system, including a first detection module, a second detection module, and a third detection module, wherein:
the first detection module is used for judging whether the ONU is frequently connected or disconnected or whether certain service of the ONU is not available or not, and if so, the situation may be caused by repeated ALLOC ID;
the second detection module is used for positioning the ONU which preliminarily judges the fault caused by the influence of the repeated ALLOC ID by judging whether the optical power is normal or not and judging whether a bit interleaved parity error or a frame header error control error or a frame delimitation error exists or not;
the third detection module is used for allocating the service ALLOC IDs of the ONUs one by one for the ONUs which are preliminarily judged to have faults caused by the influence of the repeated ALLOC IDs, then allocating bandwidth authorization to the ALLOC IDs one by one, and determining the ONUs with the repeated ALLOC IDs by capturing uplink bursts corresponding to the ALLOC IDs.
In an embodiment of the present invention, the second detection module includes an optical power detection unit and a frame error detection unit, wherein:
the optical power detection unit is used for judging whether the optical power is normal or not, if so, the optical power detection unit considers that no repeated ALLOC ID exists, and if not, the optical power detection unit continues to judge;
the frame error detection unit is used for judging whether bit interleaved parity error or frame header error control error or frame delimitation error exists, if the error exists, the ONU with the error is considered to be the ONU with the repeated ALLOC ID, and the ONU which is preliminarily judged to have faults caused by the influence of the repeated ALLOC ID is positioned.
In an embodiment of the present invention, the third detection module includes a de-allocation unit and a re-allocation unit, wherein:
the de-allocation unit is used for de-allocating the service ALLOC IDs of the ONUs one by one through physical layer operation, administration and maintenance PLOAM messages for the ONUs which are preliminarily judged to have faults caused by the influence of the repeated ALLOC IDs;
and the reallocation unit is configured to allocate bandwidth grant to the transmission container T-CONT corresponding to the ALLOC ID, and start capturing an uplink transmission burst from the ONU side, and if the uplink transmission burst corresponding to the ALLOC ID can be captured, the ONU-ID information carried by the uplink physical layer overhead PLOu part in the uplink burst is the ONU with the duplicate ALLOC ID, and the ALLOC ID is the duplicate ALLOC ID.
Generally, compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) compared with the prior art that the ONU which directly positions the repeated ALLOC ID through simple rough laser closing, ONU power-off and branch optical fiber pulling without distinguishing, the scheme of the invention optimizes the detection flow, fully utilizes the network management alarm information and performance statistic function by backtracking the up-and-down behavior of the user, the service running state and PON port performance statistics, covers the scene of most repeated ALLOC IDs with the maximum probability and reduces the detection range. Meanwhile, by utilizing a bandwidth allocation mechanism in a GPON protocol, the probability of switching off the ONU, turning off a laser and pulling out a branch optical fiber is reduced to the maximum extent, so that the repeated ALLOC ID is positioned more accurately and quickly, and the probability of handling problems of operation and maintenance personnel to a fault site is reduced as much as possible;
(2) by integrating the processing measures of the invention, the operation and maintenance perception of the user can be greatly improved, and the satisfaction degree of the user can be improved.
Drawings
FIG. 1 is a schematic flow chart of a method for detecting duplicate ALLOC IDs in a GPON system according to the present invention;
FIG. 2 is a schematic flow chart of a method for detecting duplicate ALLOC IDs in a GPON system according to the present invention;
fig. 3 is a schematic configuration diagram of a detection apparatus for duplicate ALLOC IDs in a GPON system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The invention relates to a method for solving ALLOC ID that some ONU occupies other ONU in GPON system in broadband access field, which analyzes ONU performance statistics and ONU behavior, and combines bandwidth allocation mechanism in GPON standard to rapidly detect and isolate malicious ONU repeatedly occupying ALLOC ID.
In order to solve the problems in the prior art, the invention provides a method for detecting a repeated ALLOC ID in a GPON system, which comprises the following steps:
s1, judging whether ONU frequently goes on and off line or certain service of ONU is not on, if so, it may be caused by repeating ALLOC ID;
the invention firstly analyzes the fault phenomenon and preliminarily reduces the fault range. Whether the ONU is frequently connected or disconnected or whether certain types of services of the ONU are not communicated is judged firstly, and the situation can be determined according to the historical record and the current phenomenon of the ONU. If so, it may be caused by a duplicate ALLOC ID.
S2, positioning the ONU which is preliminarily judged to have faults caused by the influence of repeated ALLOC ID by judging whether the optical power is normal or not and judging whether bit interleaved parity check errors or frame header error control errors or frame delimitation errors exist or not;
frequent connection and disconnection of the ONUs or traffic failure may also be caused by a fault of the optical path, such as bending of the optical fiber, excessive attenuation of the optical path, and the like.
Firstly, ensuring that the optical power is normal, and if the optical power is normal, determining that the repeated ALLOC ID does not exist (the PON service and the ONU up-down line behavior should be normal under the condition that the optical power is normal);
if the exception occurs, it is determined (for example, the operation and maintenance personnel may check on the network management of the device or determine by a program) whether a BIP (Bit Interleaved Parity) Error or an HEC (Header Error Control) Error or a frame delimitation Error exists. If there is a BIP error or a HEC error or a frame delimitation error, then there is probably a duplicate ALLOC ID, which further narrows the localization of the fault. And positioning the ONU which is preliminarily judged to be influenced by the repeated ALLOC ID and cause the fault.
S3, for the ONU which is preliminarily judged to have faults caused by the influence of the repeated ALLOC ID, distributing the service ALLOC ID of the ONU one by one, distributing bandwidth authorization to each ALLOC ID one by one, and determining the ONU with the repeated ALLOC ID by capturing the uplink burst corresponding to the ALLOC ID;
for the ONU which is preliminarily determined to have a fault due to the influence of the repeated ALLOC IDs, the service ALLOC IDs of the ONU are sequentially allocated through a PLOAM (Physical Layer OAM) message, and at this time, the OLT system considers that the ALLOC IDs are not occupied by any ONU. In the normal case, if the ALLOC ID is deallocated, the normal case ONU will not respond to the bandwidth allocation grant for the ALLOC ID. Then, the OLT allocates a bandwidth grant to the T-CONT (Transmission Container) corresponding to the ALLOC ID, starts capturing an upstream Transmission burst from the ONU side, and if the upstream burst corresponding to the ALLOC ID can be captured, the ONU-ID information carried by a PLOu (Physical Layer Overhead) part in the upstream burst is the ONU that repeats the ALLOC ID, and the ALLOC ID is the repeated ALLOC ID. After the ONU is detected, the ONU is reset or removed from the network, so that the affected ONU returns to normal.
Further, the method may further include:
s4, the most repeated ALLOC ID cases are already covered through the previous three steps. If the fault phenomenon still exists, all the business ALLOC IDs of all the rest ONUs are allocated, then bandwidth authorization is allocated to all the ALLOC IDs one by one, an ascending burst window is captured, a corresponding malicious ONU ID is obtained, and the ONU is reset or removed, so that the affected ONU business is recovered to be normal;
further, the method may further include:
s5, if the foregoing steps still cannot make the phenomenon disappear, this indicates that there is an uncontrolled ONU in the PON system, and at this time, the conventional positioning detection method is adopted. And finding out the uncontrolled ONU by closing the ONU laser, or powering off the ONU one by one or pulling out the branch optical fiber.
Example 2
The embodiment of the invention provides a method for detecting a repeated ALLOC ID in a GPON system, which is a technical scheme for realizing the detection of the ONU of the repeated ALLOC ID by analyzing the performance statistics and the uplink and downlink behaviors of the ONU and utilizing the GPON bandwidth allocation principle.
As shown in fig. 2, the present invention comprises the steps of:
and S11, observing whether the ONU is on-line or not or whether certain services of the ONU are fixed and not passed. If so, go to step S12, otherwise end;
s12, eliminating the fault of the optical path;
frequent connection and disconnection of the ONUs or traffic failure may also be caused by a fault of the optical path, such as bending of the optical fiber, excessive attenuation of the optical path, and the like.
Firstly, ensuring that the optical power is normal, and if the optical power is normal, determining that the repeated ALLOC ID does not exist (the PON service and the ONU up-down line behavior should be normal under the condition that the optical power is normal);
the fault phenomenon caused by the fault of the light path is eliminated through the step;
s13, judging whether the ONU has BIP error, HEC error or delimitation error alarm, if yes, turning to step S14, if not, ending;
s14, service ALLOC ID of ONU with problems in the step S13 is firstly allocated, and then bandwidth authorization is allocated to the ALLOC ID;
s15, capturing an uplink burst window of the GPON, wherein the carried ONU ID information is the ONU which repeats the ALLOC ID;
s16, resetting or removing the ONU with the repeated ALLOC ID;
s17, judging whether the fault disappears, if so, ending, otherwise, turning to the step S18;
s18, all the business ALLOC IDs of all the rest ONUs are de-allocated, then bandwidth authorization is allocated to all ALLOC IDs one by one, an uplink burst window is captured, a corresponding malicious ONU ID is obtained, and the ONU is reset or removed, so that the affected ONU business is recovered to be normal;
s19, judging whether the fault disappears, if so, ending, otherwise, turning to the step S20;
and S20, starting a conventional detection flow, and positioning by adopting the modes of closing an ONU laser, pulling a branch optical fiber, turning off the ONU power and the like.
Example 3
As shown in fig. 3, an embodiment of the present invention provides an apparatus for detecting duplicate ALLOC IDs in a GPON system, including a first detection module, a second detection module, and a third detection module, where:
the first detection module is used for judging whether the ONU is frequently connected or disconnected or whether certain service of the ONU is not available or not, and if so, the situation may be caused by repeated ALLOC ID;
the second detection module is used for positioning the ONU which preliminarily judges the fault caused by the influence of the repeated ALLOC ID by judging whether the optical power is normal or not and judging whether a bit interleaved parity error or a frame header error control error or a frame delimitation error exists or not;
the third detection module is used for allocating the service ALLOC IDs of the ONUs one by one for the ONUs which are preliminarily judged to have faults caused by the influence of the repeated ALLOC IDs, then allocating bandwidth authorization to the ALLOC IDs one by one, and determining the ONUs with the repeated ALLOC IDs by capturing uplink bursts corresponding to the ALLOC IDs.
Further, the second detection module includes an optical power detection unit and a frame error detection unit, wherein:
the optical power detection unit is used for judging whether the optical power is normal or not, if so, the optical power detection unit considers that no repeated ALLOC ID exists, and if not, the optical power detection unit continues to judge;
the frame error detection unit is used for judging whether bit interleaved parity error or frame header error control error or frame delimitation error exists, if the error exists, the ONU with the error is considered to be the ONU with the repeated ALLOC ID, and the ONU which is preliminarily judged to have faults caused by the influence of the repeated ALLOC ID is positioned.
Further, the third detection module comprises a de-allocation unit and a re-allocation unit, wherein:
the de-allocation unit is used for de-allocating the service ALLOC IDs of the ONUs one by one through physical layer operation, administration and maintenance PLOAM messages for the ONUs which are preliminarily judged to have faults caused by the influence of the repeated ALLOC IDs;
and the reallocation unit is configured to allocate bandwidth grant to the transmission container T-CONT corresponding to the ALLOC ID, and start capturing an uplink transmission burst from the ONU side, and if the uplink transmission burst corresponding to the ALLOC ID can be captured, the ONU-ID information carried by the uplink physical layer overhead PLOu part in the uplink burst is the ONU with the duplicate ALLOC ID, and the ALLOC ID is the duplicate ALLOC ID.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for detecting a duplicate ALLOC ID in a GPON system is characterized by comprising the following steps:
s1, judging whether ONU frequently goes on and off line or certain service of ONU is not on, if so, it may be caused by repeating ALLOC ID;
s2, positioning the ONU which is preliminarily judged to have faults caused by the influence of repeated ALLOC ID by judging whether the optical power is normal or not and judging whether bit interleaved parity check errors or frame header error control errors or frame delimitation errors exist or not;
s3, for the ONU which is preliminarily determined to have a fault due to the influence of the duplicate ALLOC ID, allocating the service ALLOC IDs of the ONUs one by one, allocating bandwidth grants to the ALLOC IDs one by one, and identifying the ONU with the duplicate ALLOC ID by capturing the upstream burst corresponding to the ALLOC ID.
2. The method for detecting duplicate ALLOC IDs in a GPON system as claimed in claim 1, wherein said step S2 comprises:
judging whether the optical power is normal or not, if so, determining that the repeated ALLOCID does not exist, if not, determining whether a bit interleaved parity error or a frame header error control error or a frame delimitation error exists, if not, determining that the ONU with the error possibly is the ONU with the repeated ALLOC ID, and positioning the ONU which is preliminarily determined to be affected by the repeated ALLOC ID and cause the fault.
3. The method according to claim 1 or 2, wherein in step S3, for an ONU that is preliminarily determined to have a fault due to being affected by a duplicate ALLOCID, the method allocates the service ALLOC IDs of the ONU one by one, specifically:
and for the ONU which is preliminarily judged to have faults caused by the influence of the repeated ALLOCID, distributing the business ALLOC ID of the ONU one by one through a physical layer operation, administration and maintenance PLOAM message.
4. The method for detecting duplicate ALLOC IDs in a GPON system as claimed in claim 3, wherein in step S3, a bandwidth grant is allocated to each ALLOC ID one by one, and the ONU that duplicates the ALLOC ID is determined by capturing the upstream burst corresponding to the ALLOC ID, specifically:
and allocating bandwidth authorization to the transmission container T-CONT corresponding to the ALLOCID, starting to capture an uplink transmission burst from an ONU side, and if the uplink burst corresponding to the ALLOC ID can be captured, determining that ONU-ID information carried by an uplink physical layer overhead PLOu part in the uplink burst is an ONU repeating the ALLOC ID, wherein the ALLOC ID is the repeated ALLOC ID.
5. The method for detecting duplicate ALLOC IDs in a GPON system of claim 1 or 2, wherein the S3 further comprises: and after the ONU with the repeated ALLOC ID is detected, resetting the ONU or removing the ONU from the network, so that the affected ONU returns to normal.
6. The method of claim 1 or 2, wherein the method further comprises:
and S4, if the fault phenomenon still exists, all the services ALLOCIDs of all the rest ONUs are de-allocated, then bandwidth authorization is allocated to all ALLOCIDs one by one, an uplink burst window is captured, the corresponding malicious ONU ID is obtained, and the ONU is reset or removed, so that the affected ONU services are recovered to be normal.
7. The method of claim 1 or 2, wherein the method further comprises:
s5, if the phenomenon still cannot be eliminated, this indicates that there is an uncontrolled ONU in the PON system, and the uncontrolled ONU is found out by turning off the ONU, powering off the ONU one by one, or pulling out a branch optical fiber.
8. The utility model provides a detection device of repeated ALLOCID in GPON system, characterized in that includes first detection module, second detection module and third detection module, wherein:
the first detection module is used for judging whether the ONU is frequently connected or disconnected or whether certain service of the ONU is not available or not, and if so, the situation may be caused by repeated ALLOC ID;
the second detection module is used for positioning the ONU which preliminarily judges the fault caused by the influence of the repeated ALLOC ID by judging whether the optical power is normal or not and judging whether a bit interleaved parity error or a frame header error control error or a frame delimitation error exists or not;
the third detection module is used for allocating the service ALLOC IDs of the ONUs one by one for the ONUs which are preliminarily judged to have faults caused by the influence of the repeated ALLOC IDs, then allocating bandwidth authorization to the ALLOC IDs one by one, and determining the ONUs with the repeated ALLOC IDs by capturing uplink bursts corresponding to the ALLOC IDs.
9. The apparatus of claim 8, wherein the second detection module comprises an optical power detection unit and a frame error detection unit, wherein:
the optical power detection unit is used for judging whether the optical power is normal or not, if so, the optical power detection unit considers that no repeated ALLOC ID exists, and if not, the optical power detection unit continues to judge;
the frame error detection unit is used for judging whether bit interleaved parity error or frame header error control error or frame delimitation error exists, if the error exists, the ONU with the error is considered to be the ONU with the repeated ALLOC ID, and the ONU which is preliminarily judged to have faults caused by the influence of the repeated ALLOC ID is positioned.
10. The apparatus of claim 8, wherein the third detection module comprises a de-allocation unit and a re-allocation unit, wherein:
the de-allocation unit is used for de-allocating the service ALLOC IDs of the ONUs one by one through physical layer operation, administration and maintenance PLOAM messages for the ONUs which are preliminarily judged to have faults caused by the influence of the repeated ALLOC IDs;
and the reallocation unit is configured to allocate bandwidth grant to the transmission container T-CONT corresponding to the ALLOC ID, and start capturing an uplink transmission burst from the ONU side, and if the uplink transmission burst corresponding to the ALLOC ID can be captured, the ONU-ID information carried by the uplink physical layer overhead PLOu part in the uplink burst is the ONU with the duplicate ALLOC ID, and the ALLOC ID is the duplicate ALLOC ID.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114374900A (en) * | 2022-01-04 | 2022-04-19 | 烽火通信科技股份有限公司 | Distribution identifier abnormal occupation processing method, device, equipment and storage medium |
| CN117353873A (en) * | 2023-12-04 | 2024-01-05 | 科谱半导体(天津)有限公司 | Uplink frame verification method and device, electronic equipment and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867442A (en) * | 2009-04-15 | 2010-10-20 | 中兴通讯股份有限公司 | Uplink forward error correction processing method, optical networking unit and optical line terminal |
| US9806845B1 (en) * | 2016-08-30 | 2017-10-31 | Calix, Inc. | Mitigating spectral excursions in passive optical networks |
-
2020
- 2020-07-15 CN CN202010680707.7A patent/CN111954101B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867442A (en) * | 2009-04-15 | 2010-10-20 | 中兴通讯股份有限公司 | Uplink forward error correction processing method, optical networking unit and optical line terminal |
| US9806845B1 (en) * | 2016-08-30 | 2017-10-31 | Calix, Inc. | Mitigating spectral excursions in passive optical networks |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114374900A (en) * | 2022-01-04 | 2022-04-19 | 烽火通信科技股份有限公司 | Distribution identifier abnormal occupation processing method, device, equipment and storage medium |
| CN114374900B (en) * | 2022-01-04 | 2023-05-12 | 烽火通信科技股份有限公司 | Method, device, equipment and storage medium for processing abnormal occupation of allocation identifier |
| CN117353873A (en) * | 2023-12-04 | 2024-01-05 | 科谱半导体(天津)有限公司 | Uplink frame verification method and device, electronic equipment and storage medium |
| CN117353873B (en) * | 2023-12-04 | 2024-02-13 | 科谱半导体(天津)有限公司 | Uplink frame verification method and device, electronic equipment and storage medium |
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