CN106330297A - Method and device for detecting optical fiber fault point - Google Patents
Method and device for detecting optical fiber fault point Download PDFInfo
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- CN106330297A CN106330297A CN201510342333.7A CN201510342333A CN106330297A CN 106330297 A CN106330297 A CN 106330297A CN 201510342333 A CN201510342333 A CN 201510342333A CN 106330297 A CN106330297 A CN 106330297A
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- corresponding relation
- premises access
- ustomer premises
- access equipment
- fault point
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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
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
Abstract
The invention discloses a method and a device for detecting an optical fiber fault point. The method comprises the following steps: finding a corresponding relationship to be processed including offline user side equipment from a database in which the corresponding relationship to be processed is saved specific to each of the acquired offline user side equipment when an OTDR (Optical Time Domain Reflectometry) detects one or more branch fault points; and deleting the branch fault points and the offline user side equipment in the found corresponding relationship to be processed from the detected branch fault points and the acquired offline user side equipment. Through the technical scheme provided by the invention, under the condition of not adding auxiliary test equipment, the selection range of the corresponding relationship to be processed is narrowed well, and the maintenance workload is lowered, so that the network maintenance complexity is lowered.
Description
Technical field
The present invention relates to EPON (PON, Passive Optical Network) technology, espespecially PON
In, the method and apparatus of a kind of detection fiber trouble point.
Background technology
PON is that one is applied to access network, local side apparatus such as optical line terminal (OLT, Optical Line
Terminal) with multiple ustomer premises access equipments such as optical network unit (ONU, Optical Network Unit) it
Between by passive optical cable, separation/combination road device (Splitter) etc. composition optical distribution network (ODN, Optical
Distribution Network)。
In pon, the optical fiber between OLT and Splitter is referred to as trunk optical fiber, is called for short trunk；Will
Optical fiber between Splitter and ustomer premises access equipment is referred to as branch optical fiber, is called for short branch.Generally, OLT includes
One or a trunk, each trunk is connected to user by Splitter via one or more branches
End equipment.Truck Connection is between PON interface and the optical fiber interface of Splitter of OLT.It can be appreciated that
One PON interface connects one or more ustomer premises access equipments via trunk and Splitter.
Along with the increase of the network size of PON, number of users increases, and network operation becomes increasingly complex.Mesh
Before, it is possible to use optical time domain reflectometer (OTDR, Optical Time Domain Reflectometer) is surveyed
The trouble point i.e. breakpoint of optical fiber that the PON of amount OLT is interfaced on it between each ustomer premises access equipment, decay
Trouble point or abnormal failure trouble point, it is also possible to by OLT one PON interface of detection, which is used
Family end equipment and OLT communication disruption, hereinafter, be referred to as, by the ustomer premises access equipment of communication disruption, the user that goes offline
End equipment.The trouble point detected by OTDR is positioned at trunk or branch, for convenience, logical
The trouble point that often will be located in trunk is referred to as trunk trouble point, and the trouble point that will be located in branch is referred to as branch's fault
Point.Trouble point is generally represented by the distance between itself and OLT, such as trouble point 1, and position is
10.1km, illustrates that this trouble point is positioned at distance OLT 10.1km.
Generally attendant it needs to be determined that trouble point and the one-to-one relationship that goes offline between ustomer premises access equipment,
Hereinafter, above-mentioned one-to-one relationship is referred to as fault corresponding relation.For convenience, by therein
Trouble point is not solved the fault pair that i.e. breakpoint, wear-out failure point or abnormal failure trouble point are not repaired
The most pending corresponding relation should be related to, and the fault corresponding relation being solved trouble point therein claims
For processed corresponding relation.
It should be noted that generally obtain above-mentioned OTDR test result and OLT detection by network management system
Result.Specifically, receive and on which the PON interface for indicate OLT, there is the user side that goes offline
After the warning information of equipment, network management system extracts the PON interface of warning information instruction, and indicates OTDR
Trouble point test is carried out for the PON interface extracted；After OTDR completes trouble point test, by OTDR
Test result returns to network management system；Receive after going offline alarm and extracting PON interface, network management system
Also obtain the OLT testing result for the PON interface extracted.If OTDR test result comprises
Trunk trouble point, shows trunk trouble point；If OTDR test result comprises a branch fault point,
And OLT testing result comprises one or more ustomer premises access equipments that goes offline, then show said one branch
The each pending corresponding relation that trouble point and the ustomer premises access equipment that respectively goes offline separately constitute；If OTDR tests
Result comprises two or more branch fault point, now OLT testing result correspondingly comprise two or
Two or more goes offline ustomer premises access equipment, shows above-mentioned each branch fault point and the ustomer premises access equipment that respectively goes offline, aobvious
So in the case of this, it is impossible to determine each branch fault point demonstrated and the treating between ustomer premises access equipment that respectively go offline
Process corresponding relation.Being not difficult to find out, the quantity of the ustomer premises access equipment that goes offline is more than or equal to branch fault point number
Amount, such as, when the branch fault point that two distance OLT length of existence are identical, at OTDR test knot
In Guo, only including a branch fault point, this branch fault point represents above-mentioned two branch fault point.
When detecting two or more branch fault point, attendant is it needs to be determined that pending correspondence
Relation.When detecting 2 trouble points, optional scope at least includes 4 corresponding relations, now, dimension
Protect personnel need select from least 4 corresponding relations wherein 2 as pending corresponding relation, work as inspection
When measuring 3 trouble points, optional scope at least includes 9 corresponding relations, and now, attendant needs
Select from least 9 pending corresponding relations wherein 3 as pending corresponding relation.Obviously, with
The increase of trouble point quantity, the optional scope of pending corresponding relation increases therewith.
At present, in order to determine pending corresponding relation, need to increase subtest equipment in pon, this
Sample makes network topology more complicated, adds the complexity of network operation, too increases networking cost.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides method and the dress of a kind of detection fiber trouble point
Put, it is possible to do not increase subtest equipment, reduce the optional scope of pending corresponding relation, preferably drop
The complexity of low network operation.
In order to reach the object of the invention, a kind of method that the invention discloses detection fiber trouble point, including:
When optical time domain reflectometer OTDR detects one or more branch fault point, for acquisition
The each ustomer premises access equipment that goes offline respectively gone offline in ustomer premises access equipment, preserving pending corresponding relation
Data base searches the pending corresponding relation including the ustomer premises access equipment that goes offline；
What from each branch fault point detected and the ustomer premises access equipment that respectively goes offline obtained, deletion found treats
Process the branch fault point in corresponding relation and the ustomer premises access equipment that goes offline.
Also include before described method: obtain the described ustomer premises access equipment that respectively goes offline.
Also include after described method: if each branch fault point after described renewal and the user side that respectively goes offline
Equipment includes a branch fault point and one or more ustomer premises access equipments, then one divided
Prop up trouble point and be defined as each pending corresponding relation respectively with described each ustomer premises access equipment, and preservation is determined
Pending corresponding relation to described data base.
Further, if it is determined that go out pending corresponding relation, described method also includes: display finds
Pending corresponding relation and the pending corresponding relation determined.
Further, if being not determined by pending corresponding relation, described method also includes: display is searched
To pending corresponding relation and described renewal after each branch fault point and the ustomer premises access equipment that respectively goes offline.
Further, after receiving the instruction information for indicating processed corresponding relation, described method is also
Including: in the database, search identical with the processed corresponding relation received pending corresponding
Relation, and delete the pending corresponding relation found.
The invention also discloses the device of a kind of detection fiber trouble point, including searching unit and processing unit,
Wherein,
Search unit, for when OTDR detects one or more branch fault point, for obtaining
The each ustomer premises access equipment that goes offline respectively gone offline in ustomer premises access equipment obtained, is preserving pending corresponding relation
Data base in search and include the pending corresponding relation of the ustomer premises access equipment that goes offline；
Processing unit, for from each branch fault point detected and obtain respectively go offline ustomer premises access equipment
Delete the branch fault point searched in the pending corresponding relation that unit finds and the ustomer premises access equipment that goes offline.
Described lookup unit is additionally operable to obtain the described ustomer premises access equipment that respectively goes offline.
Described device also includes maintenance unit, each branch fault point after updating when described processing unit
The ustomer premises access equipment that respectively goes offline includes a branch fault point and one or more ustomer premises access equipments
Time, one branch fault point is defined as with described each ustomer premises access equipment respectively each pending corresponding pass
System, and preserve the pending corresponding relation determined to described data base.
Further, described device also includes display unit, waits to locate for determining when described maintenance unit
During reason corresponding relation, show pending corresponding relation and described processing unit that described lookup unit finds
The pending corresponding relation determined.
Further, described display unit is additionally operable to: when described maintenance unit is not determined by pending correspondence
During relation, show pending corresponding relation that described lookup unit finds and described processing unit more
Each branch fault point after Xin and the ustomer premises access equipment that respectively goes offline.
Further, described maintenance unit is additionally operable to: receive the instruction for indicating processed corresponding relation
Information, searches the pending corresponding pass identical with the processed corresponding relation received in the database
System, and delete the pending corresponding relation found in the database.
Compared with prior art, technical solution of the present invention includes: when OTDR detects one or more
During branch fault point, for obtain each ustomer premises access equipment that goes offline respectively gone offline in ustomer premises access equipment,
Preserve and the data base of pending corresponding relation searches the pending correspondence including the ustomer premises access equipment that goes offline
Relation；From each branch fault point detected and the ustomer premises access equipment that respectively goes offline obtained, deletion finds
Branch fault point in pending corresponding relation and the ustomer premises access equipment that goes offline.By technical solution of the present invention,
Achieve in the case of not increasing subtest equipment, in conjunction with OTDR test result i.e. detect each
What branch fault point, OLT testing result i.e. obtained respectively go offline ustomer premises access equipment and the data base found
In information, it is thus achieved that each branch fault point after renewal and the ustomer premises access equipment that respectively goes offline, thus preferably contract
The little optional scope of pending corresponding relation, reduces the complexity of maintenance workload and network operation.
Other features and advantages of the present invention will illustrate in the following description, and, partly from froming the perspective of
Bright book becomes apparent, or understands by implementing the present invention.The purpose of the present invention is excellent with other
Point can be realized by structure specifically noted in description, claims and accompanying drawing and be obtained
?.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by technical solution of the present invention, and constitutes one of description
Point, it is used for explaining technical scheme together with embodiments herein, is not intended that the present invention
The restriction of technical scheme.
Fig. 1 is the flow chart of the method for detection fiber trouble point of the present invention；
Fig. 2 is the composition structural representation of the device of detection fiber trouble point of the present invention；
Fig. 3 (a) is the first schematic diagram that branch's fault occurs in PON；
Fig. 3 (b) is the second schematic diagram that branch's fault occurs in PON.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing
Embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, this Shen
Embodiment in please and the feature in embodiment can mutual combination in any.
Can be at the computer of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing
System performs.And, although show logical order in flow charts, but in some cases,
Can be to be different from the step shown or described by order execution herein.
Fig. 1 is the flow chart of the method for detection fiber trouble point of the present invention, as it is shown in figure 1, include:
Step 101: when OTDR detects one or more branch fault point, for obtain
Respectively go offline each ustomer premises access equipment that goes offline in ustomer premises access equipment, at the number preserving pending corresponding relation
According to storehouse is searched the pending corresponding relation including the ustomer premises access equipment that goes offline.
Also include before step 101: obtain the ustomer premises access equipment that respectively goes offline.It implements, and belongs to ability
The conventional techniques means of field technique personnel, the protection domain being not intended to limit the present invention, the most superfluous
State.
Implementing of step 101, belongs to the conventional techniques means of those skilled in the art, is not used to
Limiting protection scope of the present invention, here is omitted.
Step 102: delete from each branch fault point detected and the ustomer premises access equipment that respectively goes offline obtained and look into
Branch fault point in the pending corresponding relation found and the ustomer premises access equipment that goes offline.By step 102,
Each branch fault point after renewal and the ustomer premises access equipment that respectively goes offline.
If it is easily understood that step 101 not finding pending corresponding relation, before renewal
Each branch fault point and each branch fault point respectively gone offline in ustomer premises access equipment i.e. step 101 and the use that respectively goes offline
Family end equipment is identical with each branch fault point after renewal and the ustomer premises access equipment that respectively goes offline.Treating of finding out
Process in corresponding relation, it is understood that there may be two or more including identical branch fault point are pending
Corresponding relation, now, above-mentioned identical branch fault point only needs each branch fault point before the update with each
Go offline and ustomer premises access equipment is deleted once.
By step 102, it is right that each branch fault point after renewal and respectively going offline comprises between ustomer premises access equipment
The optional scope that should be related to, sets equal to or less than each branch fault point before updating and the user side that respectively goes offline
The optional scope of the corresponding relation comprised between Bei.It is to say, the probability simultaneously interrupted due to branch
The least, therefore the former optional scope is very big less than the probability of the optional scope of the latter, therefore leads to
Cross the inventive method, reduce the optional scope of corresponding relation with bigger probability, reduce and safeguard people
Member determines the workload of pending corresponding relation, thus reduces the complexity that PON is safeguarded.
In order to make the inventive method more perfect, also include after the inventive method: if each after Geng Xining
Branch fault point and the ustomer premises access equipment that respectively goes offline include a branch fault point and one or more use
Family end equipment, then be defined as respectively waiting to locate with above-mentioned each ustomer premises access equipment by said one branch fault point respectively
Reason corresponding relation, and preserve the pending corresponding relation determined to data base.
Further,
If it is determined that pending corresponding relation, method also includes: the pending corresponding pass that display finds
System and the pending corresponding relation determined.In the case of this, attendant can directly obtain pending right
Should be related to, hence it is evident that improve maintenance efficiency.
Further,
If being not determined by pending corresponding relation, each branch fault point after i.e. updating and the user that respectively goes offline
End equipment includes two or more branch fault point, and method also includes: what display found waits to locate
Each branch fault point after reason corresponding relation and renewal and the ustomer premises access equipment that respectively goes offline.Treat when finding
When processing corresponding relation, according to the information demonstrated, attendant only need to be from each branch fault after updating
Point and the corresponding relation comprised between ustomer premises access equipment that respectively goes offline determine pending corresponding relation, reduces
Attendant determines the workload of pending corresponding relation, preferably improves maintenance efficiency.
In order to make the inventive method more perfect, receive for indicating the instruction of processed corresponding relation to believe
Breath is as after alarm clearing information, and the inventive method also includes: in data base, searches and receives
Process the pending corresponding relation that corresponding relation is identical, and delete the pending corresponding relation found.
It is not difficult to find out, by the above-mentioned step increased in data and delete pending corresponding relation, this
Inventive method ensure that preserves pending corresponding relation in data base.So, it is achieved that combine OTDR
The information preserved in test result, OLT testing result and data base, reduces each branch fault before renewal
Point and the optional scope of the corresponding relation comprised between ustomer premises access equipment that respectively goes offline.
The inventive method is exemplified below.
As shown in Fig. 3 (a), there is branch's fault 1 in the branch of ustomer premises access equipment 1 correspondence, by this
Inventive method, the pending corresponding relation between display branch fault point 1 and ustomer premises access equipment 1, and will
This pending corresponding relation is saved in data base.On the basis of the trouble point shown in Fig. 3 (a), as
Shown in Fig. 3 (b), the branch fault point 2 corresponding with ustomer premises access equipment 2, now, OTDR occur further
Test result display branch fault point 1 and branch fault point 2, OLT testing result display ustomer premises access equipment 1
Go offline with ustomer premises access equipment 2, inquire branch fault point 1 and user by the inventive method step 101
Pending corresponding relation 1 between end equipment 1, is obtained by the inventive method step 102 and subsequent step thereof
To the pending corresponding relation 2 between branch fault point 2 and ustomer premises access equipment 2, show pending corresponding pass
It is 1 and pending corresponding relation 2, and pending corresponding relation 2 is saved in data base.
Fig. 2 is the composition structural representation of the device of detection fiber trouble point of the present invention, and this device is arranged on
Realize on the equipment of network management system.As in figure 2 it is shown, include searching unit and processing unit, wherein,
Search unit, for when OTDR detects one or more branch fault point, for obtaining
The each ustomer premises access equipment that goes offline respectively gone offline in ustomer premises access equipment obtained, is preserving pending corresponding relation
Data base in search and include the pending corresponding relation of the ustomer premises access equipment that goes offline；
Processing unit, for from each branch fault point detected and obtain respectively go offline ustomer premises access equipment
Delete the branch fault point searched in the pending corresponding relation that unit finds and the ustomer premises access equipment that goes offline.
Search unit and be additionally operable to obtain the ustomer premises access equipment that respectively goes offline.
In Fig. 2, device also includes also including maintenance unit, each branch event after updating when processing unit
Barrier point and the ustomer premises access equipment that respectively goes offline include that a branch fault point and one or more user sides set
Time standby, a branch fault point is defined as with each ustomer premises access equipment respectively each pending corresponding relation, and
Preserve the pending corresponding relation determined to data base.
In Fig. 2, device also includes also including display unit, for determining pending correspondence when maintenance unit
During relation, it is pending that the pending corresponding relation that finds of unit is searched in display and processing unit is determined
Corresponding relation.
Display unit is additionally operable to: when maintenance unit is not determined by pending corresponding relation, and display is searched single
Pending corresponding relation that unit finds and processing unit update after each branch fault point and respectively go offline
Ustomer premises access equipment.
Maintenance unit is additionally operable to: receive the instruction information for indicating processed corresponding relation, data base
The pending corresponding relation that middle lookup is identical with the processed corresponding relation received, and delete in data base
Except the pending corresponding relation found.
Although the embodiment that disclosed herein is as it has been described above, but described content only readily appreciates this
The embodiment invented and use, is not limited to the present invention.Skill in any art of the present invention
Art personnel, on the premise of without departing from the spirit and scope that disclosed herein, can be in the form implemented
And in details, carry out any amendment and change, but the scope of patent protection of the present invention, still must be with appended
Claims are defined in the range of standard.
Claims (12)
1. the method for a detection fiber trouble point, it is characterised in that including:
When optical time domain reflectometer OTDR detects one or more branch fault point, for acquisition
The each ustomer premises access equipment that goes offline respectively gone offline in ustomer premises access equipment, preserving pending corresponding relation
Data base searches the pending corresponding relation including the ustomer premises access equipment that goes offline；
What from each branch fault point detected and the ustomer premises access equipment that respectively goes offline obtained, deletion found treats
Process the branch fault point in corresponding relation and the ustomer premises access equipment that goes offline.
Method the most according to claim 1, it is characterised in that also include before described method: obtain
Take the described ustomer premises access equipment that respectively goes offline.
Method the most according to claim 1 and 2, it is characterised in that also include after described method:
If each branch fault point after described renewal and the ustomer premises access equipment that respectively goes offline include a branch fault point
With one or more ustomer premises access equipments, then by one branch fault point respectively with described each user
End equipment is defined as each pending corresponding relation, and preserves the pending corresponding relation determined to described number
According to storehouse.
Method the most according to claim 3, it is characterised in that if it is determined that pending corresponding pass
System, described method also includes: the pending corresponding relation that display finds and the pending correspondence determined
Relation.
Method the most according to claim 4, it is characterised in that if being not determined by pending correspondence
Relation, described method also includes: after showing the pending corresponding relation and described renewal found
Each branch fault point and the ustomer premises access equipment that respectively goes offline.
Method the most according to claim 3, it is characterised in that it is processed right to receive for indicating
After the instruction information that should be related to, described method also includes: in the database, searches and receives
The pending corresponding relation that processed corresponding relation is identical, and delete the pending corresponding relation found.
7. the device of a detection fiber trouble point, it is characterised in that include searching unit and processing unit,
Wherein,
Search unit, for when OTDR detects one or more branch fault point, for obtaining
The each ustomer premises access equipment that goes offline respectively gone offline in ustomer premises access equipment obtained, is preserving pending corresponding relation
Data base in search and include the pending corresponding relation of the ustomer premises access equipment that goes offline；
Processing unit, for from each branch fault point detected and obtain respectively go offline ustomer premises access equipment
Delete the branch fault point searched in the pending corresponding relation that unit finds and the ustomer premises access equipment that goes offline.
Device the most according to claim 7, it is characterised in that described lookup unit is additionally operable to obtain
The described ustomer premises access equipment that respectively goes offline.
9., according to the device described in claim 7 or 8, it is characterised in that also include maintenance unit, use
Each branch fault point and the ustomer premises access equipment that respectively goes offline after updating when described processing unit include one point
When trouble point and one or more ustomer premises access equipments, by one branch fault point respectively with institute
State each ustomer premises access equipment and be defined as each pending corresponding relation, and preserve the pending corresponding relation determined
To described data base.
Device the most according to claim 9, it is characterised in that also include display unit, be used for
When described maintenance unit determines pending corresponding relation, waiting of showing that described lookup unit finds is located
The pending corresponding relation that reason corresponding relation and described processing unit are determined.
11. devices according to claim 10, it is characterised in that described display unit is additionally operable to:
When described maintenance unit is not determined by pending corresponding relation, show that what described lookup unit found treats
Process each branch fault point after corresponding relation and the renewal of described processing unit and the user side that respectively goes offline sets
Standby.
12. devices according to claim 9, it is characterised in that described maintenance unit is additionally operable to:
Receive the instruction information for indicating processed corresponding relation, search in the database and receive
The pending corresponding relation that processed corresponding relation is identical, and in the database delete find treat
Process corresponding relation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342333.7A CN106330297B (en) | 2015-06-18 | 2015-06-18 | Method and device for detecting optical fiber fault point |
| PCT/CN2016/078115 WO2016202044A1 (en) | 2015-06-18 | 2016-03-31 | Method and apparatus for detecting fault point of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342333.7A CN106330297B (en) | 2015-06-18 | 2015-06-18 | Method and device for detecting optical fiber fault point |
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| CN106330297A true CN106330297A (en) | 2017-01-11 |
| CN106330297B CN106330297B (en) | 2020-06-05 |
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| CN201510342333.7A Active CN106330297B (en) | 2015-06-18 | 2015-06-18 | Method and device for detecting optical fiber fault point |
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| CN (1) | CN106330297B (en) |
| WO (1) | WO2016202044A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109004974A (en) * | 2018-08-22 | 2018-12-14 | 惠安科培工业设计有限公司 | Fiber optic network fault detection means |
| CN115314358A (en) * | 2021-05-08 | 2022-11-08 | 中国移动通信集团福建有限公司 | Method and device for monitoring dummy network element fault of home wide network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683452A (en) * | 2018-08-22 | 2018-10-19 | 惠安科培工业设计有限公司 | Fiber optic network fault detection system |
| CN115484141B (en) * | 2021-06-15 | 2023-08-15 | 中国移动通信集团河南有限公司 | User determination method, device, equipment and storage medium |
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| CN103297126A (en) * | 2013-06-07 | 2013-09-11 | 广西师范大学 | PON (passive optical network) line fault monitoring method and device based on optical mark method |
| CN103746850A (en) * | 2014-01-13 | 2014-04-23 | 中国联合网络通信集团有限公司 | Method and device for positioning fault and PON (Passive Optical Network) system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004974A (en) * | 2018-08-22 | 2018-12-14 | 惠安科培工业设计有限公司 | Fiber optic network fault detection means |
| CN115314358A (en) * | 2021-05-08 | 2022-11-08 | 中国移动通信集团福建有限公司 | Method and device for monitoring dummy network element fault of home wide network |
| CN115314358B (en) * | 2021-05-08 | 2024-04-09 | 中国移动通信集团福建有限公司 | Method and device for monitoring faults of dummy network elements of home wide network |
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| Publication number | Publication date |
|---|---|
| CN106330297B (en) | 2020-06-05 |
| WO2016202044A1 (en) | 2016-12-22 |
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