CN106878057A - Loop detection and sweep-out method in Ethernet passive optical network EPON system - Google Patents
Loop detection and sweep-out method in Ethernet passive optical network EPON system Download PDFInfo
- Publication number
- CN106878057A CN106878057A CN201611266379.6A CN201611266379A CN106878057A CN 106878057 A CN106878057 A CN 106878057A CN 201611266379 A CN201611266379 A CN 201611266379A CN 106878057 A CN106878057 A CN 106878057A
- Authority
- CN
- China
- Prior art keywords
- loop
- onu
- olt
- message
- loop detection
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention provides loop detection and sweep-out method in Ethernet passive optical network EPON system, its step includes：A) OLT periodically sends the detection messages for loop detection；B) OLT packet receivings task has loop to produce in system is thought after receiving loop detection message, now calls loop detection Processing Interface, and loop is positioned；C) according to the result positioned in step b, loop is reported to alert, and be purged to loop；D) ONU ends mouthful of the OLT periodically to producing loop is recovered, and after ensuring loop by artificial removing, ONU end mouthful can recover normal.The design that the present invention passes through OLT software logics, and the international standard and China Telecom's standard of existing EPON are combined, OLT and different manufacturers ONU inter-communicating problems are reduced, in actual use with more operability；Can not only loop detection and removing, also add alarm report and loop and recover function, improve the convenience of Practical Project maintenance, enhance the integrality of function.
Description
Technical field
Method the present invention relates to ensure EPON (Ethernet passive optical network) system business stability, and in particular to EPON
The detection of system intermediate ring road, positioning, the method removed.
Technical background
In EPON system, due to network configuration or connection error, it is easy to cause occur loop in EPON, and loop
Generation can cause the system transmission repeatedly is carried out to broadcast, multicast, unknown unicast message, and the congestion in turn resulting in network is even paralysed
Paralysis.
Based on problem above, it is necessary to which the loop in EPON system is detected, positioned and removed.Current EPON system
Or in the detection mode commonly used in the presence of detection not comprehensively, or need OLT to be coordinated with ONU, and OLT in actual use
Bu Shiyige producers frequent with ONU, it is impossible to accomplish cooperation well.Based on this, it is necessary to provide a kind of rational method, can
Various loop problems are detected, is avoided that OLT and ONU matches somebody with somebody the problem closed again.
The content of the invention
The technical problems to be solved by the invention are：A kind of loop inspection in Ethernet passive optical network EPON system is provided
The method surveyed and remove, the various loop phenomenons produced in the method energy automatic detection EPON system, and loop is carried out automatically
Remove, so as to ensure the normal table operation of EPON system.
The present invention solves its technical problem and uses following technical scheme：
Loop detection and sweep-out method in the Ethernet passive optical network EPON system that the present invention is provided, including following step
Suddenly：
A) OLT is periodically to each PON mouthfuls of transmission loop detection message；
B) OLT packet receivings task has loop to produce in EPON system is thought after receiving loop detection message, now calls
Loop detection Processing Interface, positions to loop；
C) according to the result positioned in step b, loop is reported to alert, and be purged to loop；
D) ONU ends mouthful of the OLT periodically to producing loop is recovered, after ensuring that loop is manually removed, ONU end mouthful
Can recover normal.
In the above method, described step a), during OLT periodically sends loop detection message to each PON mouthfuls,
Realized using method is comprised the following steps：
(1) OLT transmission loop detection messages are carried out using based on individual vlan method, to ensure loop message and business report
Literary the same forwarding normal in systems；
(2) cycle of loop detection message is sent using interval configuration OLT：
The period distances that OLT sends loop detection message can configure, and default interval is 60s, all void in each PON mouthfuls
Intend vlan to send at intervals of 1s；Loop detection message uses broadcasting packet simultaneously, and is carried out with special field in broadcasting packet
Mark, to avoid occurring conflicting with the message on network.
In the above method, before step b), there is the message repeating process of ONU parts, the process is according to EPON systems
What the characteristic and Ethernet message transmissions characteristic of message transmissions of uniting were completed by ONU hardware.
The message repeating process of described ONU parts, specially：
After the loop detection message for receiving OLT transmissions, according to the characteristic that broadcasting packet is forwarded, ONU should be by the ring for ONU
Road detection messages are broadcast to all uni ports, and this process does not need analyses and place of the ONU to loop detection message software view
Reason, relies only on ardware feature and is forwarded；
In the presence of having loop under EPON system, loop detection message inherently enters ONU from the uni port of ONU, now
ONU receives loop detection message, need not equally do the treatment on software, only according to the characteristic of EPON ONU, by the message to
On be transmitted to OLT, while according to EPON message transmission characteristics, message can stamp the logic chain road sign of ONU when OLT is reported
Note；
In the above method, the process of the step b) positioning includes：In EPON system, loop detection message from ONU to
Can take the LLID information i.e. logical links label information of ONU in the transmitting procedure of OLT, and the information be when ONU is registered by
OLT unified distributions, the LLID information of each ONU under each PON mouthfuls is differed, therefore OLT determines loop according to the information
Which ONU messages comes from.
The present invention can determine the process of the step b) ONU using following methods：
1) ONU just be registered on OLT when, OLT a data structure can be set up in internal memory come deposit ONU LLID,
PON slogans where MAC, ONU of ONU and one virtual No. ONU, this one-to-one corresponding, this virtual No. ONU can be with
It is interpreted as a certain specific OLT PON mouthfuls ONU of lower which registration, it is assumed that this is used for depositing the data structure of ONU information
It is called ONU Registries；
2) when OLT receives the loop detection message that ONU puts forward, LLID information of the OLT in message, by ONU
Registry finds the MAC of ONU, the PON slogans at place and No. ONU, the PON slogans, No. ONU be recorded as respectively
PONID, ONUID, at the same record in itself where slot number be SLOTID；
3) after PON slogans and No. ONU is determined, OLT will pass through OAM message i.e. oam Receive message ONU
Each uni port mac address table；After the uni port mac address table for getting ONU, which port found by comparing
Mac address table in there is the source MAC of loop detection message, then the port is ONU loop ports, is recorded as PORTID；
In the above method, the process of the step c) alarms and removing loop includes：
1) after the completion of step b), OLT records the time of current alarm generation, and together with known in step b
SLOTID, PONID, ONUID, PORTID are filled into warning message together, then by loop alarm report to webmaster, point out dimension
There is loop in shield personnel, in this EPON system while the alarm status of the port is put into 1；
2) OLT reported loop alert after, immediately by existing《China Telecom EPON equipment technical requirements V3.0》
Defined in OAM message notify ONU loop ports are closed, temporarily loop is removed by the method, at the same reduce OLT and
The problem of ONU intercommunity.
In the above method, the process recovered to loop ports described in step d) includes：OLT opens a thread,
Periodically the alarm status of port is detected, if it find that the alarm status of the port is set to 1, the port has been illustrated
Loop alarm is generated, the current time of system is now obtained, CurrentTime is recorded as, further according to the acquiescence of system configuration
Loop alarm cleared time be compared judgement.
In above method step d), if the loop alarm cleared time of acquiescence is 300s, specific deterministic process is：
If CurrentTime-AlarmStartTime>=300s, then send loop cleared alarm, while being taken in message
Band SLOTID, PONID, ONUID, PORTID and current time, are then again enabled the loop ports of ONU by OAM；
If CurrentTime-AlarmStartTime<300s, then continue cycling through detection.
In above-mentioned steps d), when attendant is actual remove EPON system in loop when, the system is automatic to once
The ONU end mouthful of loop is produced to be recovered；And if attendant does not remove loop, although OLT is by loop end in step d
Mouthful recover, but by step a), b), c), still quickly out and can be purged loop detection by OLT.
The present invention has the advantages that following main compared with prior art：
1. loop detection message is sent by OLT (optical line terminal), and using the international standard of existing EPON system
IEEE802.3 and《China Telecom EPON equipment technical requirements V3.0》Defined in OAM way to manages, and combine Ethernet
Message transmissions characteristic, OLT can be just realized to the accurate of loop only by using above standard criterion and itself software logic
Positioning and removing, without the excessive participation of ONU, so realization to whole function has carried out great convergence, has improve function
Stability, it is to avoid problem when actually used in OLT and ONU intercommunity；
2. the detection and removing to loop are not only allowed for, it is also considered that the generation of loop is often when engineering is actually used
Due to, it is necessary to engineering maintenance personnel go to check scene, and actually removing loop caused by artificial maloperation or equipment fault,
Therefore loop alarm report mechanism and loop Restoration Mechanism have been used in the present invention, to assist engineering maintenance personnel to go actual removing
Loop, while after loop is eliminated, can recover once to produce the business of the ONU end mouthful of loop automatically；
3. consider EPON system intermediate ring road generation various situations, and support it is various in the case of loop detection, specifically
Including：Loop under ONU single ports；Loop between ONU end mouthful；Different ONU under same groove position, same PON (passive optical-fiber network) mouth
Between loop；Loop between same groove position, PON mouthfuls of difference lower ONU；Loop between different slots position, PON mouthfuls of difference lower ONU.
In a word, the present invention is by the design of OLT software logics, and international standard with reference to existing EPON and the country generally make
China Telecom's standard, reduces OLT and different manufacturers ONU inter-communicating problems, in actual use with more operability；
Loop detection and removing are not only allowed for, herein in connection with Practical Project service condition, alarm report are increased and loop is recovered function,
Improve the convenience of engineering maintenance；Various loop situations that may be present in EPON system can be processed, the complete of function is enhanced
Whole property.
Brief description of the drawings
Fig. 1 is overall software block diagram of the invention.
Fig. 2 is loop detection report format chart.
Fig. 3 is the logic chart for periodically sending loop detection message.
Fig. 4 is to detect and position the logic chart for removing loop phenomenon.
Fig. 5 is the automatic logic chart for recovering after loop is really released.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is further illustrated, these embodiments be only to the present invention compared with
The description of good implementation method, but do not limit content as described below.
Loop detection and sweep-out method in the Ethernet passive optical network EPON system that the present invention is provided, including following step
Suddenly：
A) OLT is periodically to each PON mouthfuls of transmission loop detection message；
B) OLT packet receivings task has loop to produce in EPON system is thought after receiving loop detection message, now calls
Loop detection Processing Interface, positions to loop；
C) according to the result positioned in step b), loop is reported to alert, and be purged to loop；
D) ONU ends mouthful of the OLT periodically to producing loop is recovered, after ensuring that loop is manually removed, ONU end mouthful
Can recover normal.
Described step a), is to use to include during OLT periodically sends loop detection message to each PON mouthfuls
Following steps methods is realized：
OLT is sent loop detection message and is carried out based on individual vlan (VLAN), because in actual use,
EPON system can divide different VLAN according to service conditions, while service message can also carry corresponding VLAN in forwarding,
So in whole loop detection mechanism, if loop detection message need to carry VLAN be it will be apparent that do not carry VLAN,
Then loop message cannot the normal forwarding in systems as service message, let alone detection loop；
The period distances that OLT sends loop detection message can configure, and default interval is 60s, and each PON mouthfuls each is virtual
Vlan is sent at intervals of 1s, while loop detection message is using broadcasting packet and in messages with special field (in such as Fig. 2
Special data fields) it is marked, to avoid occurring conflicting with the message on network.
In the above method, also there is the message repeating process of ONU parts before step b), it is as follows：
ONU, because the message is broadcasting packet, is forwarded after the loop detection message for receiving OLT transmissions according to message
Characteristic, ONU should patrol the loopback detection message broadcasting to all UNI (user side) port, the treatment that ONU is simplified herein
Volume, it is not necessary to analyses and treatment of the ONU to loop detection message software view, rely only on ardware feature and forwarded, this
Plant the convergence that processing mode greatly improves the function；
In the presence of having loop under EPON system, loop detection message inherently enters ONU from the uni port of ONU, now
ONU receives loop detection message, need not equally do the treatment on software, only according to the characteristic of EPON ONU, by the message to
On be transmitted to OLT, while according to EPON message transmission characteristics, message can stamp the LLID (logic chains of ONU when OLT is reported
Road sign is remembered)；
The treatment of above ONU parts in the present invention is all the characteristic and Ethernet report according to EPON system message transmissions
Literary transmission characteristic is completed by ONU hardware, and just because of this, the present invention is just particularly important, and solves in EPON system intercommunication
Property on great difficult problem, it is to avoid OLT of the present invention uses the loop detection being likely to occur coordinating different manufacturers ONU
The problem that function cannot be realized.
In the above method, the process of the step b) positioning includes：In EPON system, loop detection message from ONU to
LLID (logical links mark) information of ONU can be taken in the transmitting procedure of OLT, and the LLID is united by OLT when ONU is registered
One distribution, the LLID of each ONU under each PON mouthfuls is differed, thus OLT can according to the LLID determine loop message come
From which ONU, the specific process for determining ONU is related to following steps：
1) ONU just be registered on OLT when, OLT a data structure can be set up in internal memory come deposit ONU LLID,
PON slogans where MAC, ONU of ONU and one virtual No. ONU (this one-to-one corresponding), this virtual No. ONU can
To be interpreted as a certain specific OLT PON mouthfuls ONU of lower which registration, for example, first registered under 1 mouthful of the PON of OLT
No. ONU of ONU distribution is 1；This data structure for being used for depositing ONU information is called ONU Registries by we for the time being；
2) when OLT receives the loop detection message that ONU puts forward, LLID information of the OLT in message, by ONU
Registry, finds the MAC of ONU, the PON slogans (being recorded as PONID) at place and No. ONU (being recorded as ONUID), while
Place slot number is SLOTID to record in itself；
3) after PON slogans and No. ONU is determined, OLT just can be by OAM (oam) Receive messages ONU
Each uni port mac address table, and OAM general message forms had international standard IEEE802.3 define, again reduce
Problems of the OLT and ONU in intercommunity.After the uni port mac address table for getting ONU, which end found by comparing
There is the source MAC of loop detection message in the mac address table of mouth, then the port is ONU loop ports (being recorded as PORTID)；
4) position fixing process more than is mainly ONU Registry and OAM message of the OLT by self record, and combines
MAC address learning, forwarding logic are completed, and as far as possible using prior art codes and standards, are reduced OLT and ONU intercommunity and are asked
Topic.
In the above method, the process of the step c) alarms and removing loop includes：
1) after the completion of step b), OLT records the time (AlarmStartTime) of current alarm generation, and together with step
Known SLOTID, PONID, ONUID, PORTID are filled into warning message together in rapid b, then give loop alarm report
There is loop in webmaster, prompting maintenance personnel, while the alarm status of the port is put into 1, this step is very in this EPON system
It is important, because caused by the generation of loop is usually equipment fault or engineering wiring error, software removes loop can only be temporary transient
Solve problem, want thoroughly to remove loop, it is desired nonetheless to which the loop that engineering maintenance personnel are reported according to OLT device alerts letter
Breath, removes actual removing loop；
2) OLT notifies that ONU closes loop ports, by this side by OAM message immediately after having reported loop to alert
Method temporarily removes loop.
In the above method, the process recovered to loop ports described in step d) includes：
OLT opens a thread, and the periodically alarm status to port is detected, if it find that the alarm of the port
State is set to 1, illustrates that the port has generated loop alarm, now obtains the current time of system, is recorded as
CurrentTime, the loop alarm cleared time (being defaulted as 300s) further according to system configuration is compared judgement, and this sentences silent
Recognize as a example by 300s and illustrate, it is specific as follows：
If CurrentTime-AlarmStartTime>=300s, then send loop cleared alarm, while being taken in message
Band SLOTID, PONID, ONUID, PORTID and current time, are then again enabled the loop ports of ONU by OAM.
If CurrentTime-AlarmStartTime<300s, then continue cycling through detection.
The importance of step d) is mainly reflected in, when attendant is actual remove EPON system in loop when, system
ONU end mouthful that can be automatically to once producing loop is recovered.And if attendant does not remove loop, in step d
Although OLT recovers loop ports, by step a), b), c), OLT still can quickly by loop detection out simultaneously
It is purged.So operation both controls system risk, also enhances actually used convenience.
Claims (10)
1. the loop detection and sweep-out method in Ethernet passive optical network EPON system, it is characterised in that comprise the following steps：
A) OLT is periodically to each PON mouthfuls of transmission loop detection message；
B) OLT packet receivings task has loop to produce in EPON system is thought after receiving loop detection message, now calls loop
Detection process interface, positions to loop；
C) according to the result positioned in step b, loop is reported to alert, and be purged to loop；
D) ONU ends mouthful of the OLT periodically to producing loop is recovered, and after ensuring loop by artificial removing, ONU end mouthful can be extensive
It is multiple normal.
2. loop detection according to claim 1 and sweep-out method, it is characterised in that described step a), in the OLT cycles
Property to each PON mouthfuls send loop detection message during, realized using method is comprised the following steps：
(1) OLT transmission loop detection messages are carried out using based on individual vlan method, to ensure loop message and service message one
Sample is normally forwarded in systems；
(2) cycle of loop detection message is sent using interval configuration OLT：
The period distances that OLT sends loop detection message can configure, and default interval is 60s, all virtual in each PON mouthfuls
Vlan is sent at intervals of 1s；Loop detection message uses broadcasting packet simultaneously, and broadcasting packet is marked, with avoid with network
Message occur conflict.
3. loop detection according to claim 1 and sweep-out method, it is characterized in that before step b), there is ONU parts
Message repeating process, the process is characteristic and Ethernet message transmissions characteristic according to EPON system message transmissions by ONU
What hardware was completed.
4. loop detection according to claim 3 and sweep-out method, it is characterised in that the message forwarding of described ONU parts
Process, specially：
After the loop detection message for receiving OLT transmissions, according to the characteristic that broadcasting packet is forwarded, ONU should examine the loop ONU
Observe and predict text and be broadcast to all uni ports, this process does not need analyses and treatment of the ONU to loop detection message software view, only
Ardware feature is relied on to be forwarded；
In the presence of having loop under EPON system, loop detection message inherently enters ONU from the uni port of ONU, now ONU
Loop detection message is received, the treatment on software need not be equally done, only according to the characteristic of EPON ONU, the message is turned upwards
OLT is issued, while according to EPON message transmission characteristics, message can stamp the logical links mark of ONU when OLT is reported.
5. loop detection according to claim 1 and sweep-out method, it is characterised in that the process bag positioned described in step b
Include：In EPON system, loop detection message can take the LLID information i.e. logic chain of ONU in the transmitting procedure from ONU to OLT
Road label information, and the information is distributed unitedly by OLT when ONU is registered, the LLID letters of each ONU under each PON mouthfuls
Breath is differed, therefore OLT determines which ONU loop messages comes from according to the information.
6. loop detection according to claim 5 and sweep-out method, it is characterized in that determining the mistake of ONU using following methods
Journey：
1) when being just registered on OLT, OLT can set up a data structure to deposit LLID, ONU of ONU ONU in internal memory
PON slogans where MAC, ONU and one virtual No. ONU, this one-to-one corresponding, this virtual No. ONU is interpreted as certain
One specific OLT PON mouthfuls lower which ONU for registering, it is assumed that this data structure for being used for depositing ONU information is called ONU notes
Volume information table；
2) when OLT receives the loop detection message that ONU puts forward, LLID information of the OLT in message is registered by ONU
Information table finds the MAC of ONU, the PON slogans at place and No. ONU, the PON slogans, No. ONU be recorded as respectively PONID,
ONUID, at the same record in itself where slot number be SLOTID；
3) after PON slogans and No. ONU is determined, OLT by OAM message is oam Receive message ONU each
The mac address table of uni port；After the uni port mac address table for getting ONU, the MAC of which port is found by comparing
There is the source MAC of loop detection message in address table, then the port is ONU loop ports, is recorded as PORT ID.
7. loop detection according to claim 1 and sweep-out method, it is characterised in that loop is alerted and removed described in step c
Process include：
1) after the completion of step b, OLT records the time of current alarm generation, and together with known SLOTID in step b,
PONID, ONUID, PORTID are filled into warning message together, then by loop alarm report to webmaster, prompting maintenance personnel
There is loop in this EPON system, while the alarm status of the port is put into 1；
2) OLT reported loop alert after, immediately by existing《China Telecom EPON equipment technical requirements V3.0》In it is fixed
The OAM message of justice notifies that ONU closes loop ports, is temporarily removed loop by the method, while reducing OLT and ONU
The problem of intercommunity.
8. loop detection according to claim 1 and sweep-out method, it is characterised in that described in step d) to loop ports
The process recovered includes：OLT opens a thread, and the periodically alarm status to port is detected, if it find that
The alarm status of the port is set to 1, illustrates that the port has generated loop alarm, now obtains the current time of system, note
It is CurrentTime to record, and the loop alarm cleared time further according to the acquiescence of system configuration is compared judgement.
9. loop detection according to claim 8 and sweep-out method, it is characterised in that when setting the loop alarm clearance of acquiescence
Between be 300s, specific deterministic process is：
If CurrentTime-AlarmStartTime>=300s, then send loop cleared alarm, while being carried in message
SLOTID, PONID, ONUID, PORTID and current time, are then again enabled the loop ports of ONU by OAM；
If CurrentTime-AlarmStartTime<300s, then continue cycling through detection.
10. loop detection according to claim 8 and sweep-out method, it is characterised in that in step d), when attendant's reality
When border removes the loop in EPON system, the automatic ONU end to once producing loop of the system mouthful is recovered；And if dimension
Shield personnel do not remove loop, although OLT recovers loop ports in step d), by step a), b), c), OLT is still
So quickly loop detection out and can be purged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611266379.6A CN106878057A (en) | 2016-12-31 | 2016-12-31 | Loop detection and sweep-out method in Ethernet passive optical network EPON system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611266379.6A CN106878057A (en) | 2016-12-31 | 2016-12-31 | Loop detection and sweep-out method in Ethernet passive optical network EPON system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106878057A true CN106878057A (en) | 2017-06-20 |
Family
ID=59165425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611266379.6A Pending CN106878057A (en) | 2016-12-31 | 2016-12-31 | Loop detection and sweep-out method in Ethernet passive optical network EPON system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106878057A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171898A (en) * | 2017-07-14 | 2017-09-15 | 上海市信息网络有限公司 | Operator's Ethernet Circle detection and loop method of disposal |
| CN108123752A (en) * | 2017-12-29 | 2018-06-05 | 武汉长光科技有限公司 | A kind of EPON accurate loop detection methods based on geography information positioning |
| CN112995811A (en) * | 2021-05-19 | 2021-06-18 | 武汉长光科技有限公司 | Service fulfillment detection method and device and computer readable storage medium |
| US11050486B2 (en) | 2019-02-14 | 2021-06-29 | Nokia Solutions And Networks Oy | Loop detection in a passive optical LAN network |
| CN113098709A (en) * | 2021-03-24 | 2021-07-09 | 深圳市乙辰科技股份有限公司 | Network recovery method and device based on distributed networking system and computer equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060370A (en) * | 2006-04-21 | 2007-10-24 | 华为技术有限公司 | A PON terminal management method and system |
| CN101179428A (en) * | 2007-09-28 | 2008-05-14 | 西安大唐电信有限公司 | Method of managing multi-logical link ID optical network unit in Ethernet passive optical network |
| CN101707538A (en) * | 2009-11-25 | 2010-05-12 | 烽火通信科技股份有限公司 | Method for detecting and automatically recovering Ethernet loopback |
| CN102055525A (en) * | 2010-12-17 | 2011-05-11 | 北京格林伟迪科技有限公司 | Loop detecting and controlling method |
| CN102740171A (en) * | 2011-04-08 | 2012-10-17 | 中兴通讯股份有限公司 | Round trip detection method and system for passive optical network |
| WO2013140454A1 (en) * | 2012-03-22 | 2013-09-26 | 三菱電機株式会社 | Pon system, olt, and onu |
| CN103685265A (en) * | 2013-12-09 | 2014-03-26 | 上海斐讯数据通信技术有限公司 | Security detection method and system of passive optical network |
| CN105591692A (en) * | 2015-11-04 | 2016-05-18 | 杭州华三通信技术有限公司 | Method and device of loop elimination in Ethernet passive optical network (EPON) |
-
2016
- 2016-12-31 CN CN201611266379.6A patent/CN106878057A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060370A (en) * | 2006-04-21 | 2007-10-24 | 华为技术有限公司 | A PON terminal management method and system |
| CN101179428A (en) * | 2007-09-28 | 2008-05-14 | 西安大唐电信有限公司 | Method of managing multi-logical link ID optical network unit in Ethernet passive optical network |
| CN101707538A (en) * | 2009-11-25 | 2010-05-12 | 烽火通信科技股份有限公司 | Method for detecting and automatically recovering Ethernet loopback |
| CN102055525A (en) * | 2010-12-17 | 2011-05-11 | 北京格林伟迪科技有限公司 | Loop detecting and controlling method |
| CN102740171A (en) * | 2011-04-08 | 2012-10-17 | 中兴通讯股份有限公司 | Round trip detection method and system for passive optical network |
| WO2013140454A1 (en) * | 2012-03-22 | 2013-09-26 | 三菱電機株式会社 | Pon system, olt, and onu |
| CN103685265A (en) * | 2013-12-09 | 2014-03-26 | 上海斐讯数据通信技术有限公司 | Security detection method and system of passive optical network |
| CN105591692A (en) * | 2015-11-04 | 2016-05-18 | 杭州华三通信技术有限公司 | Method and device of loop elimination in Ethernet passive optical network (EPON) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171898A (en) * | 2017-07-14 | 2017-09-15 | 上海市信息网络有限公司 | Operator's Ethernet Circle detection and loop method of disposal |
| CN108123752A (en) * | 2017-12-29 | 2018-06-05 | 武汉长光科技有限公司 | A kind of EPON accurate loop detection methods based on geography information positioning |
| US11050486B2 (en) | 2019-02-14 | 2021-06-29 | Nokia Solutions And Networks Oy | Loop detection in a passive optical LAN network |
| CN113098709A (en) * | 2021-03-24 | 2021-07-09 | 深圳市乙辰科技股份有限公司 | Network recovery method and device based on distributed networking system and computer equipment |
| CN112995811A (en) * | 2021-05-19 | 2021-06-18 | 武汉长光科技有限公司 | Service fulfillment detection method and device and computer readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106878057A (en) | Loop detection and sweep-out method in Ethernet passive optical network EPON system | |
| US7633952B2 (en) | Discovery of physically adjacent neighbor devices using a unidirectional in-band process coupled with an out-of-band follow-up process | |
| EP0686329B1 (en) | Event correlation in telecommunications networks | |
| NO330908B1 (en) | Local network, especially Ethernet network, with redundancy features and redundancy controller | |
| US8675501B2 (en) | Transmission apparatus and reporting method for reporting fault | |
| JPH11506591A (en) | Synchronization in SDH networks | |
| US9699035B1 (en) | Topology determination for an optical network | |
| CN100440816C (en) | Method of automatic detecting sigual transmitting line failare | |
| US9544166B2 (en) | Access gateway management system | |
| US6226270B1 (en) | Method and apparatus for path trace check | |
| EP2472793A1 (en) | Method, device and system for transmitting e1 bidirectional looped network data | |
| CN111262624B (en) | Optical cable fault monitoring method and device | |
| US20070230083A1 (en) | Communications line monitoring system, relay apparatus, and communications line monitoring method | |
| US11290371B2 (en) | Methods and apparatuses for path selection in a packet network | |
| CN102195791A (en) | Alarm analysis method, device and system | |
| WO2012083740A1 (en) | Method and device for detecting warnings | |
| US7389044B2 (en) | Method and system for providing a signature signal in an optical network in the event of loss of a client | |
| CN106506194A (en) | The method of dissimilar or model device alarm by snmp protocol automatic identification | |
| CN101753211A (en) | A kind of method of testing and device | |
| CN101237319B (en) | Time synchronization method in Ethernet ring network and Ethernet ring system | |
| WO2021004211A1 (en) | Service protection method, apparatus and system | |
| US6426958B1 (en) | System and method for performance monitoring telecommunication signals having various formats | |
| CN101877653A (en) | Method and system for judging whether alarm variable information is lost or not as well as master control board | |
| CN102546204B (en) | The transmission method of TDM circuit emulation service remote alarm information and system | |
| CN108123752A (en) | A kind of EPON accurate loop detection methods based on geography information positioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |