CN105656549A - Method for recognizing false dying gasp of ONU (Optical Distribution Network) by OLT (Optical Line Terminal) of PON (Passive Optical Network) system - Google Patents
Method for recognizing false dying gasp of ONU (Optical Distribution Network) by OLT (Optical Line Terminal) of PON (Passive Optical Network) system Download PDFInfo
- Publication number
- CN105656549A CN105656549A CN201610065283.7A CN201610065283A CN105656549A CN 105656549 A CN105656549 A CN 105656549A CN 201610065283 A CN201610065283 A CN 201610065283A CN 105656549 A CN105656549 A CN 105656549A
- Authority
- CN
- China
- Prior art keywords
- onu
- olt
- message
- dyinggasp
- false
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000003287 optical effect Effects 0.000 title abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
-
- 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
- H04B10/0799—Monitoring line transmitter or line receiver equipment
-
- 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
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention provides a method for recognizing a false dying gasp of an ONU (Optical Distribution Network) by an OLT (Optical Line Terminal) of a PON (Passive Optical Network) system. The method comprises the following steps: recognizing and filtering a dying gasp message reported by the ONU by the OLT; establishing a data table by the OLT to maintain and record a dying gasp message report state of each ONU, wherein contents in the data table are initialized when the ONU is successfully authorized; judging whether the ONU is on-line and recognizing the truth and falseness of the dying gasp message by the OLT by searching registration information of the ONU which reports the dying gasp message at an underlying MPCP (Multi Point Control Protocol) registration list; using a cycle detection mechanism to determine the false dying gasp message by the OLT; and cyclically scanning the whole ONU by the OLT in a running process, and ending the scanning process when the OLT stops running. The method for recognizing the false dying gasp of the ONU by the OLT of the PON system provided by the invention effectively avoids wrong judgment of the false dying gasp, avoids OLT equipment processing chaos, and reduces maintenance cost.
Description
Technical field
The present invention relates to EPON (PON) field, particularly relate to a kind of PON system OLT method identifying the false dyinggasp of ONU.
Background technology
PON(PassiveOpticalNetwork EPON) system is by OLT(OpticalLineTerminal optical line terminal), ODN(OpticalDistributionNetwork Optical Distribution Network) and ONU(OpticalNetworkUnit optical network unit) three parts form, as shown in Figure 1.
Manager monitors the presence of ONU by OLT. The presence of the ONU of the upper definition of OLT is divided into (online), off-line (offline) and power-off (poweroff) state online. Presence represents that ONU succeeds in registration on OLT, energy normal transmission data, off-line state represents that ONU cannot not transmit data online, off-position represents that ONU is become off-line state due to power cut-off by presence, owing to device powers down is that a kind of normality of equipment running process is so off-position individually requires monitoring. Requirement according to 802.3ah standard, OLT is reported dyinggasp message to OLT when power is off by ONU, OLT thinks this ONU power-off after receiving message, by online modification, the state of ONU is become off-position, and OLT reports ONU alarm for power-off to notify manager simultaneously.
ONU reports the mechanism of dyinggasp message to be arrange the voltage threshold of a reporting message, and when lower than this voltage threshold, ONU reports dyinggasp message to OLT. Owing to the voltage threshold of ONU for empirical value in the industry and can not be set to 0, therefore when the unstable fluctuation near voltage threshold of the supply voltage of ONU, ONU can report dyinggasp message, actual ONU not power-off by mistake. The message of this wrong report is referred to as false dyinggasp message in the document. It is off-position that the false dyinggasp message of ONU can cause that OLT judges ONU presence by accident, takies the process resource of equipment alarm. Can safeguard to equipment manager when this problem occurs in multiple stage ONU on OLT and bring great difficulty, be unfavorable for the follow-up plant maintenance of manager and fault location, will also result in the confusion of OLT device software processes simultaneously.Therefore OLT needs a kind of method to identify the ONU false dyinggasp message reported by mistake.
Summary of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above that prior art identification ONU off-position exists, it is provided that a kind of PON system OLT identifies the method for the false dyinggasp of ONU, effectively evades the erroneous judgement of the OLT false dyinggasp that ONU is sent.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of PON system OLT identifies the method for the false dyinggasp of ONU, comprises the steps:
The dyinggasp message that ONU is reported by S1, OLT is identified and filters;
S2, OLT set up the dyinggasp information reporting state that a tables of data is safeguarded and recorded each ONU in the local database, and the content in this tables of data is initialised when ONU authorizes successfully;
By searching the ONU reporting dyinggasp message log-on message in bottom MPCP register list, S3, OLT judge that whether ONU is online, identify the true and false property of dyinggasp message;
S4, OLT adopt cycle detection mechanism to confirm false dyinggasp message;
S5, OLT be scan round complete machine ONU in running, terminates scanning process when OLT is out of service.
By such scheme, in described step S2, the dyinggasp information reporting state variables D yingGaspFlag record of each ONU, the value of DyingGaspFlag is initialized to 0 when ONU authorizes successfully; DyingGaspFlag value represents when being 1 that ONU has reported dyinggasp message, and now OLT enters the true and false property flow process identifying dyinggasp message.
By such scheme, described step S4 specifically includes: if without the log-on message of ONU in bottom MPCP register list, what expression ONU reported is real dyinggasp message, and the presence of ONU is set to off-position by OLT; If there being the log-on message of ONU in bottom MPCP register list, then carrying out next step cycle detection, bottom MPCP register list is searched in circulation all again every time; Arbitrarily once circulation does not find in MPCP register list the log-on message of ONU, then it is assumed that dyinggasp message is true messages; After the circulation of set point number, OLT still can find the log-on message of ONU in MPCP register list, then thinking that the message reported is false dyinggasp message, OLT ignores this message and variables D yingGaspFlag value is set to 0, and continues next ONU is judged.
By such scheme, in described step S3, bottom MPCP register list refers specifically to the log formed after ONU completes MPCP registration on OLT, and the log-on message in log is specially the MAC Address of ONU and OLT distributes to the LLID of ONU.
By such scheme, the method range of application is complete machine ONU, not only the ONU under a corresponding independent PON mouth.
Compared with prior art, beneficial effects of the present invention:
1, the original testing mechanism directly being judged ONU off-position by ONU transmission dyinggasp message of PON system is changed, the dyinggasp message on OLT, ONU reported is identified and filters, by searching the log-on message in ONU bottom MPCP register list on OLT, and adopt repeatedly circulation searching log-on message to identify the true and false property of the dyinggasp message of ONU;
2, the method can effectively evade the erroneous judgement of the OLT false dyinggasp message that ONU is sent, avoid the confusion of OLT device software processes, equipment manager is allowed can correctly to grasp the presence of ONU, in order to make follow-up maintenance and malfunction elimination processes, reduce equipment manager maintenance cost.
Accompanying drawing explanation
Fig. 1 is the present invention based on OLT and the ONU of the PON system structural representation connected;
The OLT data base that Fig. 2 is embodiment of the present invention PON system builds table flow chart;
Fig. 3 is the flow chart of the OLT identification false dyinggasp method of ONU of embodiment of the present invention PON system.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.
In the embodiment of the present invention, it is provided that a kind of OLT identifies the method for the false dyinggasp of ONU, is embodied as step as shown in Figures 2 and 3:
When OLT has started and ONU authorizes successfully, the local data base of OLT can be set up the tables of data of the ONUdyinggasp information reporting that a record complete machine has authorized, represent whether message reports with variables D yingGaspFlag, each ONU has the DyingGaspFlag variable of correspondence, and the initial value of DyingGaspFlag is 0; When OLT receives the dyinggasp message of ONU, directly do not judge ONU power-off, but the value of DyingGaspFlag is put 1; OLT scans the value of the DyingGaspFlag of each ONU successively, when DyingGaspFlag value is 1, enters identification process, scanning next ONU when DyingGaspFlag value is 0; OLT is meeting scan round complete machine ONU in running, terminates scanning process when OLT is out of service.
After entering identification process, OLT scans the value of the DyingGaspFlag of corresponding ONU when being 1, represent that ONU have sent dyinggasp message to OLT, now on OLT, judge ONU login state by inquiry bottom MPCP register list, if ONU is not in register list, then represent that this message is true dyinggasp, the power-off message of ONU is reported to manager with alarm form and the presence of ONU is set to power-off (poweroff) by OLT, is set to 0 by the DyingGaspFlag of corresponding ONU simultaneously; When inquiring ONU in MPCP register list, impact due to ONU Offtime and ONU capacitance energy storage time, directly do not judge that dyinggasp is as false dyinggasp, and it is by M cycle criterion, 1 second each intercycle time, variable M is global variable, all ONU share, the initial value of the M hour of log-on equal to single ONU controls the capacitance energy storage time of dyinggasp information reporting plus ONU, if the result that the above-mentioned two time is added is decimal, then then whole result is rounded plus 1; In M cyclic process, the login state of ONU in MPCP register list is inquired about in circulation all again every time, finds ONU in MPCP register list unregistered, then still believe that this dyinggasp is true messages, otherwise continue cycling through in arbitrarily once circulation; After M circulation searching, if each lookup result of ONU is all in register list, then it is assumed that what ONU reported is false dyinggasp message, now ignores this message and variables D yingGaspFlag value is set to 0, and the value of M recovers default value. When DyingGaspFlag value is 0, represent that corresponding ONU does not receive dyinggasp message or ONU differentiation is complete, now poll next one ONU;
OLT bottom MPCP register list is the log formed at bottom after ONU completes MPCP registration on OLT. ONU registers on OLT to be needed through MPCP discovery, standard and extension OAM discovery procedure, and MPCP finds to register also referred to as hardware, and standard and extension OAM discovery procedure are also referred to as software registration.Owing to MPCP registration process is to be done directly by the hardware chip on OLT, reaction is the information of the bottom, and therefore the present embodiment selects to search MPCP register list information. In MPCP register list, that record is the MAC Address of ONU and the OLT LLID that distributes to ONU.
The method range of application is complete machine ONU, not only the ONU under a corresponding independent PON mouth.
It should be appreciated that for those of ordinary skills, it is possible to improved according to the above description or converted, and all these are improved and convert the protection domain that all should belong to claims of the present invention.
Claims (5)
1. the method that a PON system OLT identifies the false dyinggasp of ONU, it is characterised in that comprise the steps:
The dyinggasp message that ONU is reported by S1, OLT is identified and filters;
S2, OLT set up the dyinggasp information reporting state that a tables of data is safeguarded and recorded each ONU in the local database, and the content in this tables of data is initialised when ONU authorizes successfully;
By searching the ONU reporting dyinggasp message log-on message in bottom MPCP register list, S3, OLT judge that whether ONU is online, identify the true and false property of dyinggasp message;
S4, OLT adopt cycle detection mechanism to confirm false dyinggasp message;
S5, OLT be scan round complete machine ONU in running, terminates scanning process when OLT is out of service.
2. the method that PON system OLT according to claim 1 identifies the false dyinggasp of ONU, it is characterized in that, in described step S2, the dyinggasp information reporting state variables D yingGaspFlag record of each ONU, the value of DyingGaspFlag is initialized to 0 when ONU authorizes successfully; DyingGaspFlag value represents when being 1 that ONU has reported dyinggasp message, and now OLT enters the true and false property flow process identifying dyinggasp message.
3. the method that PON system OLT according to claim 2 identifies the false dyinggasp of ONU, it is characterized in that, described step S4 specifically includes: if without the log-on message of ONU in bottom MPCP register list, what expression ONU reported is real dyinggasp message, and the presence of ONU is set to off-position by OLT; If there being the log-on message of ONU in bottom MPCP register list, then carrying out next step cycle detection, bottom MPCP register list is searched in circulation all again every time; Arbitrarily once circulation does not find in MPCP register list the log-on message of ONU, then it is assumed that dyinggasp message is true messages; After the circulation of set point number, OLT still can find the log-on message of ONU in MPCP register list, then thinking that the message reported is false dyinggasp message, OLT ignores this message and variables D yingGaspFlag value is set to 0, and continues next ONU is judged.
4. the method that PON system OLT according to claim 1 identifies the false dyinggasp of ONU, it is characterized in that, in described step S3, bottom MPCP register list refers specifically to the log formed after ONU completes MPCP registration on OLT, and the log-on message in log is specially the MAC Address of ONU and OLT distributes to the LLID of ONU.
5. the method that PON system OLT according to claim 1 identifies the false dyinggasp of ONU, it is characterised in that the method range of application is complete machine ONU, not only the ONU under a corresponding independent PON mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065283.7A CN105656549B (en) | 2016-01-29 | 2016-01-29 | A kind of false dying gasp of PON system OLT identification ONU method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065283.7A CN105656549B (en) | 2016-01-29 | 2016-01-29 | A kind of false dying gasp of PON system OLT identification ONU method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105656549A true CN105656549A (en) | 2016-06-08 |
| CN105656549B CN105656549B (en) | 2018-01-12 |
Family
ID=56488069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610065283.7A Active CN105656549B (en) | 2016-01-29 | 2016-01-29 | A kind of false dying gasp of PON system OLT identification ONU method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105656549B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111885437A (en) * | 2020-07-21 | 2020-11-03 | 中通服软件科技有限公司 | Commercial power failure monitoring method, system, equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101668232A (en) * | 2008-09-02 | 2010-03-10 | 华为技术有限公司 | Method, device and system for processing power failure of optical network unit |
| CN101697564A (en) * | 2009-10-27 | 2010-04-21 | 太仓市同维电子有限公司 | Circuit structure capable of realizing critical failure signal generation function on network communication terminal equipment |
| US20100111523A1 (en) * | 2008-11-05 | 2010-05-06 | Teknovus, Inc. | Epon with power-saving features |
| CN102404134A (en) * | 2010-09-15 | 2012-04-04 | 百维通（苏州）科技有限公司 | System and method for realizing Dying gasp signal uploading in communication network system with pluggable module |
| US20130094861A1 (en) * | 2011-04-08 | 2013-04-18 | Futurewei Technologies, Inc. | Wavelength Indication in Multiple-Wavelength Passive Optical Networks |
| US20140079396A1 (en) * | 2010-03-24 | 2014-03-20 | Mitsubishi Electric Corporation | Communication method, optical communication system, station-side optical-line terminal apparatus, and user-side optical-line terminal apparatus |
-
2016
- 2016-01-29 CN CN201610065283.7A patent/CN105656549B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101668232A (en) * | 2008-09-02 | 2010-03-10 | 华为技术有限公司 | Method, device and system for processing power failure of optical network unit |
| US20100111523A1 (en) * | 2008-11-05 | 2010-05-06 | Teknovus, Inc. | Epon with power-saving features |
| CN101697564A (en) * | 2009-10-27 | 2010-04-21 | 太仓市同维电子有限公司 | Circuit structure capable of realizing critical failure signal generation function on network communication terminal equipment |
| US20140079396A1 (en) * | 2010-03-24 | 2014-03-20 | Mitsubishi Electric Corporation | Communication method, optical communication system, station-side optical-line terminal apparatus, and user-side optical-line terminal apparatus |
| CN102404134A (en) * | 2010-09-15 | 2012-04-04 | 百维通（苏州）科技有限公司 | System and method for realizing Dying gasp signal uploading in communication network system with pluggable module |
| US20130094861A1 (en) * | 2011-04-08 | 2013-04-18 | Futurewei Technologies, Inc. | Wavelength Indication in Multiple-Wavelength Passive Optical Networks |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111885437A (en) * | 2020-07-21 | 2020-11-03 | 中通服软件科技有限公司 | Commercial power failure monitoring method, system, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105656549B (en) | 2018-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102142897B (en) | Detection method and device of ONU (optical network unit) as well as passive optical network system | |
| EP3220556B1 (en) | Method, device and system for detecting rogue optical network unit | |
| CN101534460B (en) | Method for identifying remote ONU down-linked terminal equipment in PON system automatically | |
| CN109450527B (en) | Fault determination method and device, computer equipment and storage medium | |
| CN102130718B (en) | A kind of network element device of protection switching of backbone optical path and method | |
| US9755736B2 (en) | Smart remote node optical network unit and operation method thereof | |
| CN104410547A (en) | Address conflict detection method for distributed control system | |
| CN106303763A (en) | The detection method of a kind of abnormal PON terminal and device | |
| US20210028960A1 (en) | Method for detecting and identifying items of equipment communicating according to a modbus protocol and communication controller for the implementation of such a method | |
| CN102291175A (en) | Optical fiber fault detecting system | |
| WO2015180542A1 (en) | Method and apparatus for detecting continuous-mode optical network unit, and network management device | |
| CN105553973A (en) | System and method for detecting industrial control equipment abnormality | |
| CN107038101A (en) | A kind of multiserver remote monitoring and administration method and system | |
| CN105119777B (en) | A method of the link loopback detection in PON system | |
| CN105656549A (en) | Method for recognizing false dying gasp of ONU (Optical Distribution Network) by OLT (Optical Line Terminal) of PON (Passive Optical Network) system | |
| CN107294595A (en) | A kind of detection method for growing luminous optical network unit, device and optical line terminal | |
| CN103036715B (en) | Device management method, device and corresponding network management system | |
| CN113727222B (en) | Method and device for detecting MAC address drift in PON system | |
| CN117098018A (en) | Network mode self-adaptive switching control method and system for all-optical product | |
| CN105024897A (en) | Scanning method for network equipment on RS485 bus | |
| CN104065495A (en) | Long light emitting ONU judging method and device and passive optical network system | |
| CN103001691B (en) | Method and device for diagnosing ONU (optical network unit) illegal transmission window alarms on OLT (optical line terminal) side in EPON (Ethernet passive optical network) system | |
| US10554326B2 (en) | Method and device for fiber-to-the-home | |
| CN109005205A (en) | A kind of ONT Optical Network Terminal location information collection method, apparatus and system | |
| CN108540217B (en) | Test method for improving OLT test ONT or ONU efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |