CN113473270A - Method and device for automatically detecting and cleaning network equipment garbage configuration - Google Patents

Method and device for automatically detecting and cleaning network equipment garbage configuration Download PDF

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Publication number
CN113473270A
CN113473270A CN202110589937.7A CN202110589937A CN113473270A CN 113473270 A CN113473270 A CN 113473270A CN 202110589937 A CN202110589937 A CN 202110589937A CN 113473270 A CN113473270 A CN 113473270A
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data
onu
configuration
cleaning
olt
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滕承仁
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Unihub China Information Technology Co Ltd
Zhongying Youchuang Information Technology Co Ltd
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Unihub China Information Technology Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10File systems; File servers
    • G06F16/16File or folder operations, e.g. details of user interfaces specifically adapted to file systems
    • G06F16/162Delete operations
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10File systems; File servers
    • G06F16/18File system types
    • G06F16/1805Append-only file systems, e.g. using logs or journals to store data
    • G06F16/1815Journaling file systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q2011/0079Operation or maintenance aspects

Abstract

The invention discloses a method and a device for automatically detecting and cleaning network equipment garbage configuration, wherein the method comprises the following steps: periodically acquiring a resource system on a PON (passive optical network) network manager, wherein the resource system comprises; the PON network manager compares the information with a resource system regularly to find out the ONU information suspected of having garbage configuration; leading out a list of the ONU information configured by the compared suspected existing garbage, logging in OLT equipment to check the current ONU state and offline time to judge whether the ONU information can be deleted or not; and after the confirmation, cleaning the part of the junk data. The method and the system realize automatic detection on the established strategy of the OLT equipment and clear up the configuration and the service data of the garbage ONU, remove repeated and complex work of maintenance personnel of the OLT equipment, and summarize detection and clear up results to generate a report, thereby improving the benefit of the network equipment management personnel on management work.

Description

Method and device for automatically detecting and cleaning network equipment garbage configuration
Technical Field
The invention relates to the field of ONU networks, in particular to a method and a device for automatically detecting and cleaning network equipment garbage configuration.
Background
In the management process of the PON network device, along with the continuous development of services and information technologies, network services are more and more, network devices carrying these network services are also continuously changed, operations such as adding, modifying, deleting, etc. are continuously performed, and a problem always exists in some of these operations, which causes the service configuration on the OLT device to have garbage data, that is, ONU configuration and service data configured on the OLT, which occupy the OLT-related service configuration resource data, may cause the following added services to fail to normally configure ONU configuration and service data on the OLT, and also causes confusion of resource data, and invisibly increases a burden on a maintainer, which requires a method/tool to automatically detect, find out suspicious garbage ONU data, and clean the detected garbage ONU configuration and service data, and OLT configuration resources are released, and the accuracy of resource data is improved.
The ONU optical network unit provides services such as data, IPTV and voice; connecting to OLT equipment through optical fibers; the OLT equipment is an optical line terminal and is used for connecting the terminal equipment of an optical fiber trunk line; the PON is a passive optical network, which means that the optical distribution network does not contain any electronic devices and electronic power supplies, and the ODN is composed of all passive devices such as an optical Splitter and the like, so that expensive active electronic equipment is not needed. A passive optical network comprises an optical line terminal OLT arranged at a central control station and a number of associated optical network units ONU arranged at subscriber premises.
Disclosure of Invention
In order to solve the problem that the network equipment garbage configuration occupies network resources at present, the invention provides a method and a device for automatically detecting and cleaning the network equipment garbage configuration, which realize the automatic detection on a set strategy of OLT equipment and the cleaning of the garbage ONU configuration and service data, remove the repeated and complicated work of OLT equipment maintainers, summarize the detection and cleaning results and generate a report, and improve the benefit of the network equipment manager on the management work.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for automatically detecting and cleaning network equipment garbage configuration comprises the following steps:
the method comprises the steps that firstly, a resource system is periodically acquired on a PON network manager, and the resource system comprises: ONU equipment, OLT equipment, a PON port, ONUID, LOID, ONU port state information, ONU running state and ONU on-line time information;
step two, the PON network manager compares the information with a resource system regularly to find out the ONU information suspected of having garbage configuration;
thirdly, conducting list export on the ONU information configured by the compared suspected existing garbage, logging in OLT equipment to check the current ONU state and offline time to judge whether the ONU information can be deleted or not;
and step four, after the confirmation, cleaning the part of the junk data.
Further, the second step is that the PON network manager compares with the resource system regularly, which comprises the following steps that firstly, the LOID existing in the PON network manager is compared with the resource system; when the resource system exists, judging whether the OLT equipment is consistent, if not, the OLT equipment is suspicious data; the OLT is consistent but the PON ports are inconsistent and are also suspicious data; the PON network management but the resource system does not exist as suspicious data.
Further, the third step of logging in to the OLT device to check the current ONU state and offline time to determine whether the current ONU state and offline time can be deleted, where the specific determination process includes: executing a preset command on a login OLT device, checking the current state, the last login time and judging, wherein the current state is offline, and the last login time and the current time exceed 90 days, so that data can be deleted; the last login time is empty, namely the last login time is not over the line, and the last login time is data which can be deleted; otherwise, the state is not changed and the data continues to be suspicious data.
Further, the configuration cleaning process in the fourth step includes that for the deletable junk data, the system automatically performs backup before data deletion through a preset command, checks the configuration and service data of the ONU to be deleted, and performs data deletion after retention, thereby completing the junk data cleaning operation.
Furthermore, when a cleaning error occurs or the cleaning process is not required in the configuration cleaning process in the step four, the system provides a rollback operation, re-executes the reserved configuration and service commands on the OLT device, and supports log query for cleaning and rollback.
An apparatus for automatic detection and cleaning of network device garbage configuration, the apparatus comprising:
the information acquisition module is used for periodically acquiring a resource system on the PON network manager;
the information comparison module is used for finding out ONU information suspected of having garbage configuration by periodically comparing with the resource system;
the verification module is used for conducting list export on the ONU information which is compared and is suspected to have garbage configuration, logging in the OLT equipment to check the current ONU state and the up-down time and judging whether the ONU information can be deleted or not;
and the clearing module is used for clearing the part of the junk data after confirmation, namely logging in the OLT equipment to delete the related configuration data, namely, configuring and clearing.
Further, the information comparison module, the PON network manager, compares with the resource system periodically, and includes the following steps that firstly, the LOID existing in the PON network manager is compared with the resource system; when the resource system exists, judging whether the OLT equipment is consistent, if not, the OLT equipment is suspicious data; the OLT is consistent but the PON ports are inconsistent and are also suspicious data; the PON network management but the resource system does not exist as suspicious data.
Further, the checking module logs on the OLT device to check the current ONU state and offline time to determine whether the current ONU state and offline time can be deleted, and the specific determination process includes: executing a preset command on a login OLT device, checking the current state, the last login time and judging, wherein the current state is offline, and the last login time and the current time exceed 90 days, so that data can be deleted; the last login time is empty, namely the last login time is not over the line, and the last login time is data which can be deleted; otherwise, the state is not changed and the data continues to be suspicious data.
Furthermore, the configuration and cleaning process of the cleaning module includes that the system automatically performs backup before data deletion through a preset command for the removable junk data, checks the configuration and service data of the ONU to be deleted, and executes data deletion after the configuration and service data are reserved, thereby completing the cleaning operation of the junk data.
Furthermore, when a cleaning error occurs or cleaning is not required in the cleaning module configuration cleaning process, the system provides rollback operation, re-executes the reserved configuration and service commands on the OLT equipment, and supports cleaning and rollback log query.
A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1-5 when executing the computer program.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1-5.
Has the advantages that:
the invention acquires ONU equipment information including LOID, PON port of the OLT, specific ONUID, ONU equipment running state, ONU equipment management state, ONU on-line time and the like through the OLT equipment, compares the information with a resource system, detects suspicious garbage ONU data and logs on the OLT for cleaning, releases OLT configuration resources and improves the accuracy of the resource data. The method realizes the detection and the cleaning of the OLT equipment on the set strategy, removes the repeated and complex work of the maintenance personnel of the OLT equipment, collects the detection and cleaning results and generates a report, and improves the benefit of the network equipment management personnel on the management work.
Drawings
FIG. 1 is a flow chart illustrating a method for automatically detecting and cleaning network device garbage disposal according to the present invention;
FIG. 2 is a flowchart illustrating a second step of the method for automatically detecting and cleaning network device garbage disposal according to the present invention;
FIG. 3 is a flowchart illustrating a third step of the method for automatically detecting and cleaning network device garbage disposal according to the present invention;
FIG. 4 is a flowchart illustrating a fourth step of the method for automatically detecting and cleaning network device garbage disposal according to the present invention;
FIG. 5 is a schematic structural diagram of an apparatus for automatically detecting and cleaning network device garbage disposal according to the present invention;
FIG. 6 is a schematic diagram of the computer device structure of the present invention.
Detailed Description
The principles and spirit of the present invention will be described below with reference to several exemplary embodiments, which should be understood to be presented only to enable those skilled in the art to better understand and implement the present invention, and not to limit the scope of the present invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As will be appreciated by one skilled in the art, embodiments of the present invention may be embodied as a system, apparatus, device, method, or computer program product. Accordingly, the present disclosure may be embodied in the form of: entirely hardware, entirely software (including firmware, resident software, micro-code, etc.), or a combination of hardware and software.
According to the embodiment of the invention, the method and the device for automatically detecting and cleaning the network equipment garbage configuration are provided, so that the OLT equipment is automatically detected on a set strategy, the garbage ONU configuration and the service data are cleaned, repeated and complex work of OLT equipment maintenance personnel is eliminated, a report is generated by summarizing detection and cleaning results, and the benefit of the network equipment management personnel on management work is improved.
The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments of the present invention, and described with reference to a specific example, however, it should be noted that the example is only for better illustration of the present invention and should not be construed as an undue limitation on the present invention.
The first embodiment,
As shown in fig. 1, the present invention provides a method for automatically detecting and cleaning network device garbage configuration, which comprises:
step one, S1, acquiring a resource system periodically on the PON network manager, where the resource system includes: ONU equipment, OLT equipment, a PON port, ONUID, LOID, ONU port state information, ONU running state and ONU on-line time information;
step two, S2, the PON network manager compares with the resource system regularly to find out the ONU information suspected of having garbage configuration;
step three, S3, performing list export on the ONU information configured by the compared suspected existence rubbish, logging in OLT equipment, checking the current ONU state and offline time, and judging whether the ONU information can be deleted or not;
and step four S4, after the confirmation, cleaning the part of the junk data.
As shown in fig. 2, the second step is that the PON manager compares with the resource system periodically, which includes the following steps that firstly, the LOID existing in the PON manager is compared with the resource system; when the resource system exists, judging whether the OLT equipment is consistent, if not, the OLT equipment is suspicious data; the OLT is consistent but the PON ports are inconsistent and are also suspicious data; the PON network management but the resource system does not exist as suspicious data.
As shown in fig. 3, the third step of logging in to the OLT device to check the current ONU state and offline time to determine whether the current ONU state and offline time can be deleted, where the specific determination process includes: executing a preset command on a login OLT device, checking the current state, the last login time and judging, wherein the current state is offline, and the last login time and the current time exceed 90 days, so that data can be deleted; the last login time is empty, namely the last login time is not over the line, and the last login time is data which can be deleted; otherwise, the state is not changed and the data continues to be suspicious data.
Logging in OLT equipment to execute a preset command display ont info by-LOID LOID, checking Run state and Last up time for judgment, and when the Run state is off and the Last up time exceeds 90 days (the time is empty, namely the Last up time does not pass the line and is directly equal to or more than 90 days), determining that the data can be deleted; otherwise, the state is not changed, and the data is continuously 'suspicious data';
Figure BDA0003089122950000081
Figure BDA0003089122950000091
Figure BDA0003089122950000101
as shown in fig. 4, the configuration cleaning process in the fourth step includes that, for the deletable spam data, the system automatically performs backup before data deletion through a preset command, checks the configuration and service data of the ONU to be deleted, and performs data deletion after retention, thereby completing the spam data cleaning operation.
And for the result that the last link is checked to be the 'deletable junk data', the system automatically performs backup before data deletion through a preset command, namely configuration of the ONU to be deleted and service data need to be checked and retained, and then executes data deletion to finish the junk data cleaning operation.
After display current-configuration ont 0/4/10 is inquired according to the command, the command circled with red circle is reserved in the corresponding work order field for work order rollback/restoration work;
Figure BDA0003089122950000102
Figure BDA0003089122950000111
Figure BDA0003089122950000121
deleting all services and deleting onu configuration to complete configuration cleaning
NN-WXP-JiFu-OLT-E/G-1.MA5680T(config)#undo service-port129
NN-WXP-JiFu-OLT-E/G-1.MA5680T(config)#undo service-port130
NN-WXP-JiFu-OLT-E/G-1.MA5680T(config)#interface gpon 0/4
NN-WXP-JiFu-OLT-E/G-1.MA5680T(config-if-gpon-0/4)#ont delete 1 16
Number of ONTs that can be deleted:1,success:1
NN-WXP-JiFu-OLT-E/G-1.MA5680T(config-if-gpon-0/4)#
And if the cleaning error occurs or the cleaning process is not required in the configuration cleaning process in the step four, the system provides a rollback operation, the reserved configuration and service commands are re-executed on the OLT equipment, and the log query of cleaning and rollback is supported.
It should be noted that although the operations of the method of the present invention have been described in the above embodiments and the accompanying drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the operations shown must be performed, to achieve the desired results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.
Based on the same invention concept, the invention also provides a device for automatically detecting and cleaning the garbage configuration of the network equipment. The implementation of the device can be referred to the implementation of the method, and repeated details are not repeated. The term "module," as used below, may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 5 is a schematic structural diagram of an apparatus for automatically detecting and cleaning network device garbage configuration according to an embodiment of the present invention. As shown in fig. 5, the apparatus includes:
the information acquisition module 101 is used for periodically acquiring a resource system on a PON (passive optical network) network manager;
the information comparison module 102 is used for finding out the ONU information suspected of having garbage configuration by periodically comparing with the resource system;
the checking module 103 is configured to export a list of the compared ONU information configured for suspected existence of spam, log in the OLT device to check the current ONU state and the up-down time, and determine whether the ONU information can be deleted;
the cleaning module 104 is configured to perform a cleaning operation on the part of the spam data after the confirmation, that is, log on the OLT device to delete the relevant configuration data, that is, perform configuration cleaning.
The information comparison module 102 compares the PON network manager with the resource system periodically, and includes the following steps of comparing an LOID existing in the PON network manager with the resource system; when the resource system exists, judging whether the OLT equipment is consistent, if not, the OLT equipment is suspicious data; the OLT is consistent but the PON ports are inconsistent and are also suspicious data; the PON network management but the resource system does not exist as suspicious data.
The checking module 103 logs on the OLT device to check the current ONU state and offline time to determine whether the current ONU state and offline time can be deleted, and the specific determination process includes: executing a preset command on a login OLT device, checking the current state, the last login time and judging, wherein the current state is offline, and the last login time and the current time exceed 90 days, so that data can be deleted; the last login time is empty, namely the last login time is not over the line, and the last login time is data which can be deleted; otherwise, the state is not changed and the data continues to be suspicious data.
The cleaning process of the cleaning module configuration 104 includes that for the deletable garbage data, the system automatically performs backup before data deletion through a preset command, checks the configuration and service data of the ONU to be deleted, and executes data deletion after retention, thereby completing the cleaning operation of the garbage data.
The cleaning module 104 configures a condition that a cleaning error occurs or cleaning is not required in the cleaning process, the system provides a rollback operation, re-executes the reserved configuration and service commands on the OLT device, and supports log query for cleaning and rollback.
It should be noted that although several modules of the active recognition two-stage light splitting device based on big data analysis are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the modules described above may be embodied in one module according to embodiments of the invention. Conversely, the features and functions of one module described above may be further divided into embodiments by a plurality of modules.
Based on the aforementioned inventive concept, as shown in fig. 6, the present invention further provides a computer device 200, which includes a memory 210, a processor 220, and a computer program 230 stored on the memory 210 and executable on the processor 220, wherein the processor 220 implements the aforementioned active identification two-stage optical splitting method based on big data analysis when executing the computer program 230.
Based on the above inventive concept, the present invention further provides a computer-readable storage medium storing a computer program for executing the above active identification two-stage optical splitting method based on big data analysis.
The method and the device for actively identifying the secondary light splitting failure based on the big data analysis provided by the invention utilize a big data platform constructed by the network management of the access network, and reuse part of constructed calculation analysis modules (for example, AAA (authentication, authorization and accounting) online and offline information) in the application of customer perception of network quality analysis, so that the secondary light splitting failure is actively discovered at low cost, the failure is discovered before the customer, the failure list is dispatched in time (the follow-up customer service system can provide active notification user failure service), the failure time is shortened, and the customer perception is promoted.
While the spirit and principles of the invention have been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, nor is the division of aspects, which is for convenience only as the features in such aspects may not be combined to benefit. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
The limitation of the protection scope of the present invention is understood by those skilled in the art, and various modifications or changes which can be made by those skilled in the art without inventive efforts based on the technical solution of the present invention are still within the protection scope of the present invention.

Claims (12)

1. A method for automatically detecting and cleaning network equipment garbage configuration is characterized by comprising the following steps:
the method comprises the steps that firstly, a resource system is periodically acquired on a PON network manager, and the resource system comprises: ONU equipment, OLT equipment, a PON port, ONUID, LOID, ONU port state information, ONU running state and ONU on-line time information;
step two, the PON network manager compares the information with a resource system regularly to find out the ONU information suspected of having garbage configuration;
thirdly, conducting list export on the ONU information configured by the compared suspected existing garbage, logging in OLT equipment to check the current ONU state and offline time to judge whether the ONU information can be deleted or not;
and step four, after the confirmation, cleaning the part of the junk data.
2. The method for automatically detecting and cleaning the garbage configuration of the network device according to claim 1, wherein the second step of comparing the PON network manager with the resource system periodically comprises the following steps of comparing the LOID existing in the PON network manager with the resource system; when the resource system exists, judging whether the OLT equipment is consistent, if not, the OLT equipment is suspicious data; the OLT is consistent but the PON ports are inconsistent and are also suspicious data; the PON network management but the resource system does not exist as suspicious data.
3. The method according to claim 1, wherein the third step of logging in to the OLT to check the current ONU status and offline time to determine whether the current ONU status and offline time can be deleted, and the specific determination process includes: executing a preset command on a login OLT device, checking the current state, the last login time and judging, wherein the current state is offline, and the last login time and the current time exceed 90 days, so that data can be deleted; the last login time is empty, namely the last login time is not over the line, and the last login time is data which can be deleted; otherwise, the state is not changed and the data continues to be suspicious data.
4. The method according to claim 1, wherein the configuration cleaning process in the fourth step includes that for the deletable garbage data, the system automatically performs backup before data deletion through a preset command, checks the configuration and service data of the ONU to be deleted, and performs data deletion after the backup is performed, thereby completing the garbage data cleaning operation.
5. The method according to claim 1, wherein in case of a cleaning error or should not occur in the configuration cleaning process in step four, the system provides a rollback operation, re-executes the retained configuration and service commands on the OLT device, and supports log query for cleaning and rollback.
6. An apparatus for automatic detection and cleaning of network device garbage configuration, the apparatus comprising:
the information acquisition module is used for periodically acquiring a resource system on the PON network manager;
the information comparison module is used for finding out ONU information suspected of having garbage configuration by periodically comparing with the resource system;
the verification module is used for conducting list export on the ONU information which is compared and is suspected to have garbage configuration, logging in the OLT equipment to check the current ONU state and the up-down time and judging whether the ONU information can be deleted or not;
and the clearing module is used for clearing the part of the junk data after confirmation, namely logging in the OLT equipment to delete the related configuration data, namely, configuring and clearing.
7. The apparatus according to claim 6, wherein the information comparison module is used for comparing the PON network manager with the resource system periodically, and comprises the following steps of comparing the LOID existing in the PON network manager with the resource system; when the resource system exists, judging whether the OLT equipment is consistent, if not, the OLT equipment is suspicious data; the OLT is consistent but the PON ports are inconsistent and are also suspicious data; the PON network management but the resource system does not exist as suspicious data.
8. The apparatus according to claim 6, wherein the checking module logs on the OLT to check a current ONU status and offline time and determine whether the current ONU status and offline time can be deleted, and the specific determination process includes: executing a preset command on a login OLT device, checking the current state, the last login time and judging, wherein the current state is offline, and the last login time and the current time exceed 90 days, so that data can be deleted; the last login time is empty, namely the last login time is not over the line, and the last login time is data which can be deleted; otherwise, the state is not changed and the data continues to be suspicious data.
9. The apparatus according to claim 6, wherein the process of configuration cleaning of the cleaning module includes that for the deletable spam data, the system automatically performs backup before data deletion through a preset command, checks the configuration and service data of the ONU to be deleted, and performs data deletion after the backup is performed, thereby completing the operation of cleaning the spam data.
10. The apparatus of claim 6, wherein in case of a cleaning error or a cleaning failure occurring in the cleaning module configuration cleaning process, the system provides a rollback operation, re-executes the retained configuration and service commands on the OLT device, and supports log query for cleaning and rollback.
11. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1-5 when executing the computer program.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1-5.
CN202110589937.7A 2021-05-28 2021-05-28 Method and device for automatically detecting and cleaning network equipment garbage configuration Pending CN113473270A (en)

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CN104284259A (en) * 2014-11-11 2015-01-14 武汉长光科技有限公司 Method for automatically removing invalid ONU (optical network unit) by OLT (optical line terminal) of EPON (Ethernet passive optical network) system and OLT
US20160232177A1 (en) * 2015-02-06 2016-08-11 Ashish Govind Khurange Methods and systems of a dedupe file-system garbage collection
CN110856051A (en) * 2019-11-04 2020-02-28 中盈优创资讯科技有限公司 Method and device for checking optical wide resource tree

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102447582A (en) * 2011-12-31 2012-05-09 中兴通讯股份有限公司 Resource synchronization method and device
CN104284259A (en) * 2014-11-11 2015-01-14 武汉长光科技有限公司 Method for automatically removing invalid ONU (optical network unit) by OLT (optical line terminal) of EPON (Ethernet passive optical network) system and OLT
US20160232177A1 (en) * 2015-02-06 2016-08-11 Ashish Govind Khurange Methods and systems of a dedupe file-system garbage collection
CN110856051A (en) * 2019-11-04 2020-02-28 中盈优创资讯科技有限公司 Method and device for checking optical wide resource tree

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Application publication date: 20211001