CN106911418B - For the method, apparatus of the quick rollback of wavelength tuning, ONU and passive optical network - Google Patents
For the method, apparatus of the quick rollback of wavelength tuning, ONU and passive optical network Download PDFInfo
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- CN106911418B CN106911418B CN201510977274.0A CN201510977274A CN106911418B CN 106911418 B CN106911418 B CN 106911418B CN 201510977274 A CN201510977274 A CN 201510977274A CN 106911418 B CN106911418 B CN 106911418B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
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Abstract
The present invention discloses a kind of for the method, apparatus of the quick rollback of wavelength tuning, ONU and passive optical network.This method comprises: judging whether downstream wavelength tuning of the optical network unit from source downlink working wavelength to target downlink operation wavelength succeeds；If downstream wavelength tuning failure, carries out down-going synchronous to source downlink working wavelength again and initial configuration obtains work；Judge to obtain whether work succeeds to the down-going synchronous and initial configuration of source downlink working wavelength；If the down-going synchronous and initial configuration to source downlink working wavelength obtain work success, normal operating conditions is jumped to.The present invention is by providing treatment mechanism and quick rollback mechanism for all kinds of abnormal conditions being likely to occur in wavelength tuning process, after ensuring that exception occurs in ONU uplink and downlink wavelength tuning, under the premise of associated timer has not timed out, original operation wavelength can be quickly rolled back to by preset message interaction process, reduce business interruption time.
Description
Technical field
The present invention relates to fields of communication technology, in particular to for the method, apparatus of the quick rollback of wavelength tuning, ONU and
Passive optical network.
Background technique
The government and enterprise customers of sustainable growth with public customer and to(for) network bandwidth requirements, the light based on EPON/GPON connect
The access bandwidth of networking system has gradually been unable to satisfy the demand of all types of user, next-generation respectively as EPON, GPON system
10G-EPON the and XG-PON system of evolution will start large-scale commercial deployment, but as the exponential type of user bandwidth increases
Long, 10G-EPON and XG-PON expect will also occur bandwidth bottleneck quickly in not far future.
As the next-generation evolution upgrade technique of XG-PON, NG-PON2 uses the PON technology based on wavelength-division and time-division multiplexing
(TWDM PON) will be single by introducing four (long term has the ability for extending to eight wavelength pair) uplink and downlink works wavelength pair
Downlink 40G, uplink 10G (initial stage)/40G (distant view) have been arrived in PON mouthfuls of access bandwidth promotions, can be met in the following 5-10 exhausted
The bandwidth demand of most of user of access network.
For TWDM PON technology, due to introducing the multiplexing technology of wavelength dimension, need to used 4 (8
It is a) operation wavelength is to being managed and efficiently use.For example, lower ONU (optical network unit) number of terminals of the PON mouth of a certain wavelength pair
Mesh is excessive or since other business demands are needed some ONU by an operation wavelength to moving to another work
Wavelength clock synchronization can realize ONU from source OLT (optical line terminal) CT (Channel by the side ONU uplink and downlink wavelength tuning function
Terminal, the port OLT of particular job wavelength) move to operation on target OLT CT.
At present in the corresponding international standard ITU-T 989.3 of TWDM PON, the tuning of ONU uplink and downlink wavelength is defined
Specific interacting message mechanism and tuning migration process, but defined content in standard at present, are suitable only for normal wavelength
Process is tuned, not to all kinds of abnormal conditions occurred in wavelength tuning process, such as situations such as the failure of uplink and downlink wavelength tuning
The specific complete feasible exception handling of regulation, is only the introduction of corresponding uplink and downlink wavelength tuning timer, in timing
It is unified that ONU is back to init state (O1 shape if ONU remains unfulfilled corresponding wavelength tuning operation after device time-out
State), the work such as authentication registration and the operation wavelength selection of ONU are re-started, the time of ONU recovery business is caused to take long time,
It is specific as shown in Figure 1.TWDM PON will be after operator will show net Scaledeployment from now on, if using similar abnormal restoring method,
It may cause user experience and perceive bad, the acceptance level of extreme influence TWDM PON technology.
Summary of the invention
In view of the above technical problem, the present invention provides a kind of method, apparatus for the quick rollback of wavelength tuning, light net
Network unit ONU and passive optical network PON effectively realize ONU uplink and downlink wavelength tune under the premise of associated timer is not overtime
Quick rollback after humorous failure, reduces business interruption time, improves business experience.
According to an aspect of the present invention, a kind of method for the quick rollback of wavelength tuning is provided, comprising:
Judge optical network unit from source downlink working wavelength to target downlink operation wavelength downstream wavelength tuning whether at
Function；
If downstream wavelength tuning failure, carries out down-going synchronous to source downlink working wavelength again and initial configuration obtains
Take work；
Judge to obtain whether work succeeds to the down-going synchronous and initial configuration of source downlink working wavelength；
If the down-going synchronous and initial configuration to source downlink working wavelength obtain work success, normal work is jumped to
Make state.
In one embodiment of the invention, the method also includes:
If it is unsuccessful that the down-going synchronous and initial configuration to source downlink working wavelength obtain work, downlink tune is judged
Whether humorous timer is overtime；
If downlink tunes timer expiry, init state is jumped to.
In one embodiment of the invention, the method also includes:
If downstream wavelength tunes successfully, the upstream wavelength from source uplink operation wavelength to target uplink operation wavelength is carried out
Tuning；
Judge whether upstream wavelength tuning succeeds；
If upstream wavelength tunes successfully, normal operating conditions is jumped to.
In one embodiment of the invention, the method also includes:
If upstream wavelength tuning failure, reuses source uplink operation wavelength, while carrying out the downlink of source downstream wavelength
Synchronous and initial configuration obtains work；
Judge to obtain whether work succeeds to the down-going synchronous and initial configuration of source downstream wavelength；
If the down-going synchronous and initial configuration to source downlink working wavelength obtain work success, normal work is jumped to
Make state.
In one embodiment of the invention, the method also includes:
If it is unsuccessful that the down-going synchronous and initial configuration to source downlink working wavelength obtain work, uplink tune is judged
Whether humorous timer is overtime；
If uplink tunes timer expiry, init state is jumped to.
According to another aspect of the present invention, a kind of device for the quick rollback of wavelength tuning, including the first identification are provided
Module, the first roll-back module, the second identification module and the first jump module, in which:
First identification module, for judging optical network unit under the downlink working wavelength to target downlink operation wavelength of source
Whether row wavelength tuning succeeds；
First roll-back module, for the judging result according to the first identification module, if downstream wavelength tuning failure, again
Down-going synchronous is carried out to source downlink working wavelength and initial configuration obtains work；
Second identification module, for judging that down-going synchronous and initial configuration to source downlink working wavelength obtain work
Whether succeed；
First jump module, for the judging result according to the second identification module, if to the downlink of source downlink working wavelength
Synchronous and initial configuration obtains work success, then jumps to normal operating conditions.
In one embodiment of the invention, described device further includes third identification module and the second jump module, in which:
Third identification module, for the judging result according to the second identification module, if to the downlink of source downlink working wavelength
The acquisition work of synchronous and initial configuration is unsuccessful, then judges whether downlink tuning timer is overtime；
Second jump module is jumped to according to the judging result of third identification module if downlink tunes timer expiry
Init state.
In one embodiment of the invention, described device further includes uplink tuner module, the 4th identification module and third
Jump module, in which:
Uplink tuner module is carried out for the judging result according to the first identification module if downstream wavelength tunes successfully
It is tuned from source uplink operation wavelength to the upstream wavelength of target uplink operation wavelength；
4th identification module, for judging whether upstream wavelength tuning succeeds；
Third jump module is jumped for the judging result according to the 4th identification module if upstream wavelength tunes successfully
To normal operating conditions.
In one embodiment of the invention, described device further includes the second roll-back module, the 5th identification module and the 4th
Jump module, in which:
Second roll-back module, for the judging result according to the 4th identification module, if upstream wavelength tuning failure, again
Using source uplink operation wavelength, while carrying out the down-going synchronous and initial configuration acquisition work of source downstream wavelength；
5th identification module, for judging whether down-going synchronous and initial configuration to source downstream wavelength obtain work
Success；
The forth jump revolving die block, for the judging result according to the 5th identification module, if to the downlink of source downlink working wavelength
Synchronous and initial configuration obtains work success, then jumps to normal operating conditions.
In one embodiment of the invention, described device further includes the 6th identification module and the fifth jump revolving die block, in which:
6th identification module, for the judging result according to the 5th identification module, if to the downlink of source downlink working wavelength
The acquisition work of synchronous and initial configuration is unsuccessful, then judges whether uplink tuning timer is overtime；
The fifth jump revolving die block is jumped for the judging result according to the 6th identification module if uplink tunes timer expiry
Go to init state.
According to another aspect of the present invention, a kind of optical network unit for the quick rollback of wavelength tuning is provided, including such as
The device of the quick rollback of wavelength tuning is used for described in any of the above-described embodiment.
According to another aspect of the present invention, a kind of passive optical network for the quick rollback of wavelength tuning, including source are provided
Optical line terminal, target light line terminal and the light net for the quick rollback of wavelength tuning as described in above-mentioned any embodiment
Network unit.
The present invention is by providing treatment mechanism and fast for all kinds of abnormal conditions being likely to occur in wavelength tuning process
Fast rollback mechanism, after ensuring that exception occurs in ONU uplink and downlink wavelength tuning, under the premise of associated timer has not timed out,
Original operation wavelength can be quickly rolled back to by preset message interaction process, reduces business interruption time, had
Operator now net in application deployment value.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of ONU wavelength tuning method one embodiment in the prior art.
Fig. 2 is schematic diagram of the present invention for method one embodiment of the quick rollback of wavelength tuning.
Fig. 3 is schematic diagram of the present invention for another embodiment of method of the quick rollback of wavelength tuning.
Fig. 4 is schematic diagram of the present invention for passive optical network one embodiment of the quick rollback of wavelength tuning.
Fig. 5 is schematic diagram of the present invention for device one embodiment of the quick rollback of wavelength tuning.
Fig. 6 is schematic diagram of the present invention for another embodiment of device of the quick rollback of wavelength tuning.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 2 is schematic diagram of the present invention for method one embodiment of the quick rollback of wavelength tuning.Preferably, this implementation
Example can be executed by the present invention for the device of the quick rollback of wavelength tuning, wherein the device for being used for the quick rollback of wavelength tuning
The optical network unit that the present invention is used for the quick rollback of wavelength tuning is set, and the present invention passes through the message of described device and OLT
The judgement conversion of interactive and state, passes through ICTP (Inter Channel Terminal in conjunction with source OLT and target OLT
Communication protocol between Protocol, OLT different wave length port) corresponding resource reservation and release are carried out, wavelength tune may be implemented
Quick rollback after humorous failure.
Compared with lacking corresponding exception handling in existing ONU wavelength tuning method shown in FIG. 1, implement in Fig. 2
In example, this method can also be quick after the failure of ONU uplink and downlink wavelength tuning process to complete including step 201 and step 202
Rollback.Fig. 3 is the detailed maps of Fig. 2 embodiment.
Below with reference to Fig. 2 and Fig. 3, to normally tuning process and downlink or uplink work in the above embodiment of the present invention
The detailed process for making to occur carrying out quick rollback in wavelength tuning process under abnormal conditions describes in detail.
Normal ONU uplink and downlink wavelength tuning is 102- > 103- > 104- > 201- > 102.
As shown in Figures 2 and 3, normal tuning process may include:
Step 101, ONU completes normal initial configuration, is in init state O1.
Step 102, after completing normal initial configuration, it is in normal working condition O5.1；Work as management system
After the order for assigning ONU uplink and downlink wavelength tuning, ONU has been switched to O5.2 working condition from O5.1 working condition, starts to carry out
The tuning work of uplink and downlink wavelength.
In an embodiment of the invention, as shown in figure 3, the step 102 in Fig. 2 embodiment may include:
Step 1021, after completing normal initial configuration, it is in normal operating conditions O5.1.
Step 1022, after management system assigns the order of ONU uplink and downlink wavelength tuning, ONU is from normal operating conditions
O5.1 has been switched to wavelength tuning and has prepared state O5.2, starts the tuning work for carrying out uplink and downlink wavelength.
Step 103, after preset counter reaches preset count, ONU does not synchronize shape from O5.2 state transition to downlink
State O8.1.
In an embodiment of the invention, as shown in figure 3, the step 103 in Fig. 2 embodiment may include:
Step 1031, the tuning work of downstream wavelength is carried out first, and ONU is in O8.1 state at this time.
Step 1032, downlink optical signal synchronous working is carried out, while carrying out the initial of corresponding target downlink operation wavelength
Change configuration work；Whether judge downstream wavelength tuning of the optical network unit from source downlink working wavelength to target downlink operation wavelength
Success, that is, whether the ONU in O8.2 state has successfully obtained the information such as the initial configuration of target downlink operation wavelength.
If downstream wavelength tunes successfully, 104 are thened follow the steps；Otherwise, if downstream wavelength tuning failure, thens follow the steps 2021.
During normal tuning, in step 1032, ONU has successfully completed the synchronous working of downlink optical signal, and corresponding
Target downlink operation wavelength initial configuration, then after execute step 104.
Step 104, ONU jumps to upstream wavelength tuning state O9, carries out the tuning work of upstream wavelength.
Step 201, judge whether upstream wavelength tuning succeeds.If upstream wavelength tunes successfully, 102 are thened follow the steps；It is no
Then, if upstream wavelength tuning failure, thens follow the steps 1031.
During normal tuning, after upstream wavelength tunes successfully, ONU comes back to normal operating conditions from O9 state
O5.1.The operation wavelength of ONU tunes success at this time, and the operation wavelength of ONU is target OLT downstream wavelength and target OLT uplink
Wavelength.
If there are abnormal conditions during downlink or uplink operation wavelength tune, cause ONU be unable to complete downlink/
Upstream wavelength tunes work, and abnormality eliminating method (method for the quick rollback of wavelength tuning) proposed by the present invention is respectively as follows:
The first, downstream wavelength tuning failure:
103- > 202- > 102 (downstream wavelength tuning timer has not timed out)
103- > 202- > 101 (downstream wavelength tuning timer expiry)
Fail when downstream wavelength tunes, i.e., in the step 1032 of embodiment illustrated in fig. 3, ONU is in O8.2 state and can not obtain
The information such as corresponding initial configuration are taken, then follow the steps 2021.
Step 2021, ONU carry out downstream wavelength rollback, i.e., again to source downlink working wavelength carry out down-going synchronous and just
Beginningization configuration obtains work.
Step 2022, judge to obtain the down-going synchronous and initial configuration of source downlink working wavelength work whether at
Function.If obtained successfully, ONU by the judgement of 202 condition jump to 102 shown in normal operating conditions O5.1, at this time ONU
Operation wavelength tune failure, the operation wavelength of ONU is still source OLT downstream wavelength and source OLT upstream wavelength.Otherwise, if ONU
Again for the synchronization failure of source downlink working wavelength, then judge whether downlink tuning timer is overtime, if downlink tuning timing
Device time-out, then ONU by the judgement of 2022 condition jump back to 101 shown in init state O1.
The second, upstream wavelength tuning failure:
104- > 201- > 103- > 102 (upstream wavelength tuning timer has not timed out)
104- > 101 (upstream wavelength tuning timer expiry)
Fail when upstream wavelength tunes, i.e. ONU O9 state shown in 104 can not normally complete upstream wavelength tuning and
Initial work is abandoned then as shown in figure 3, ONU judges 2011 working conditions for returning to O8.1 by condition to target operation wave
Long tuning work (is abandoned executing step 1032), then executes step 2012.
Step 2012, the rollback of uplink and downlink wavelength is carried out, that is, is reused under source uplink operation wavelength while carry out source
The long synchronous working of traveling wave.
Step 2022, judge to obtain the down-going synchronous and initial configuration of source downlink working wavelength work whether at
Function.If obtained successfully, i.e., the work such as the synchronization and configuration for completing source downstream wavelength again obtain, then ONU will be jumped again
To normal operating conditions shown in 102, the operation wavelength of ONU tunes failure at this time, and the operation wavelength of ONU is still source OLT downlink
Wavelength and source OLT upstream wavelength.
If corresponding timer time-out during upstream wavelength tunes or re-start the tuning of source downstream wavelength,
ONU will jump back to 101 shown in init state O1.
By above-mentioned steps as it can be seen that unless other abnormal feelings, otherwise occurs in the corresponding timer expiry of uplink and downlink wavelength tuning
When condition, ONU will be realized according to method proposed by the present invention and corresponding system, can quickly roll back to source uplink and downlink wavelength
On, realize the fast quick-recovery of business.
TWDM PON ONU uplink and downlink wavelength tuning method and system described in current existing standard criterion, specify just
In normal situation, the tuning methods of ONU uplink and downlink wavelength, but it is a lack of the processing for various abnormal conditions and quick rollback machine
System, leads to occur when abnormal conditions that service recovery time is too long, it is difficult to meet operator and show net O&M demand.
It is a kind of TWDM PON based on the method for the quick rollback of wavelength tuning that the above embodiment of the present invention provides
The method that the side ONU carries out wavelength tuning and quick rollback by message interaction process and state branching decision condition, for
The ONU equipment uplink and downlink wavelength tuning of TWDM PON operates and all kinds of tuning abnormal problems being likely encountered, and is normally adjusting
On the basis of humorous flow and method, by designing corresponding message interaction process and introducing the devices such as necessary timer, work is provided
Make the quick rollback mechanism of wavelength, so that it is guaranteed that business can fast quick-recovery, ensure that existing network users business experience.
Fig. 4 is schematic diagram of the present invention for passive optical network one embodiment of the quick rollback of wavelength tuning.Such as Fig. 4 institute
Show, the passive optical network includes source optical line terminal 100, target light line terminal 200 and quickly returns for wavelength tuning
The optical network unit 300 of rolling, in which:
It include the device 310 for the quick rollback of wavelength tuning in optical network unit 300, for by increasing necessary shape
State judgement operation and the message exchange operations with source optical line terminal 100 and target light line terminal 200, realize ONU or more
Quick rollback when traveling wave wavelength tuning fails.
ICTP is increased between source optical line terminal 100 and target light line terminal 200 newly, so as to realize that wavelength switched
The reservation and release of source wavelength and target wavelength respective resources in journey, when realizing traveling wave wavelength tuning failure up and down so as to ONU
Quick rollback.
In an embodiment of the invention, the above-mentioned function of source optical line terminal 100 can specifically be realized with source OLT CT, mesh
The above-mentioned function of mark optical line terminal 200 is specifically as follows target OLT CT realization.
For the availability for guaranteeing source uplink and downlink wavelength, need the side OLT by ICTP agreement carry out corresponding resource retain with
Release, it is specific as shown in Figure 4 and Table 1, condition is provided for the quick rollback of wavelength.TWDM PON ONU is carrying out uplink and downlink wavelength
It, can quick rollback when to guarantee that ONU abnormal conditions occurs to target operation wavelength tuning from source operation wavelength when tuner operation
To source operation wavelength, without jumping to init state according to method as defined in current standard, between source OLT and target OLT
The collaboration for carrying out wavelength resource by ICTP agreement is needed to retain and discharge, to guarantee the availability and mesh of source uplink and downlink wavelength
Mark the timely release of wavelength resource.
Table 1
For example, ONU used source downlink working wavelength before carrying out wavelength tuning, different states is carried out in ONU
The scheme for needing to retain and discharge in transfer process is as shown in table 1, according to the demand of this patent, source downstream wavelength only ONU at
Function completes uplink and downlink wavelength tuning, is transferred to after O5.1 state from O9 state and is just discharged, under remaining tuning scene, in ONU
Before corresponding timer expiry, it is required to retain source operation wavelength, so that ONU can quickly roll back to this source work
Make wavelength.
Table 1 alsies specify corresponding reservation and release embodiments for source uplink operation wavelength and target uplink and downlink wavelength,
Design in this way may be implemented being effectively retained and discharging for wavelength resource on source and target OLT, carry out for ONU possible
The quick rollback of wavelength creates necessary condition.
Based on the passive optical network for the quick rollback of wavelength tuning that the above embodiment of the present invention provides, for wavelength tune
All kinds of abnormal conditions being likely to occur during humorous provide treatment mechanism and quick rollback mechanism, and thus, it is possible to realize that wavelength is cut
The reservation and quick rollback of source wavelength and target wavelength respective resources during changing ensure that ONU uplink and downlink wavelength tune
After humorous appearance exception, under the premise of associated timer has not timed out, it can quickly be rolled back to by preset message interaction process
Original operation wavelength, reduces business interruption time, has the value of the application deployment in operator now nets.
Fig. 5 is schematic diagram of the present invention for device one embodiment of the quick rollback of wavelength tuning.As shown in figure 5, Fig. 4
Device as described in the examples for the quick rollback of wavelength tuning may include the first identification module 311, the first roll-back module
312, the second identification module 313 and the first jump module 314, in which:
First identification module 311, for judging optical network unit from source downlink working wavelength to target downlink operation wavelength
Downstream wavelength tuning whether succeed.
First roll-back module 312, for the judging result according to the first identification module 311, if downstream wavelength tuning failure,
Down-going synchronous then is carried out to source downlink working wavelength again and initial configuration obtains work.
Second identification module 313, for judging that down-going synchronous and initial configuration to source downlink working wavelength obtain
Whether work succeeds.
First jump module 314, for the judging result according to the second identification module 313, if to source downlink working wavelength
Down-going synchronous and initial configuration obtain work success, then jump to normal operating conditions.
Fig. 6 is schematic diagram of the present invention for another embodiment of device of the quick rollback of wavelength tuning.Implement with shown in Fig. 5
Example compare, in the embodiment shown in fig. 6, described device can also include third identification module 315 and the second jump module 316,
Wherein:
Third identification module 315, for the judging result according to the second identification module 313, if to source downlink working wavelength
Down-going synchronous and initial configuration obtain work it is unsuccessful, then judge downlink tuning timer it is whether overtime.
Second jump module 316, according to the judging result of third identification module 315, if downlink tunes timer expiry,
Jump to init state.
Based on the device for the quick rollback of wavelength tuning that the above embodiment of the present invention provides, TWDM PON may be implemented
Quick rollback when the tuning failure of ONU wavelength downlink, to effectively realize ONU under the premise of associated timer is not overtime
Quick rollback after the failure of uplink and downlink wavelength tuning, reduces business interruption time, improves business experience.
In one embodiment of the invention, as shown in fig. 6, described device can also include uplink tuner module 317, the
Four identification modules 318 and third jump module 319, in which:
Uplink tuner module 317, for the judging result according to the first identification module 311, if downstream wavelength tunes successfully,
It then carries out tuning from source uplink operation wavelength to the upstream wavelength of target uplink operation wavelength.
4th identification module 318, for judging whether upstream wavelength tuning succeeds.
Third jump module 319, for the judging result according to the 4th identification module 318, if upstream wavelength tunes successfully,
Then jump to normal operating conditions.
Normal wavelength tuning function also may be implemented in the above embodiment of the present invention, to realize that ONU is moved from source OLT CT
Move on to the operation on target OLT CT
In one embodiment of the invention, as shown in fig. 6, described device can also include the second roll-back module 320, the
Five identification modules 321 and the forth jump revolving die block 322, in which:
Second roll-back module 320, for the judging result according to the 4th identification module 318, if upstream wavelength tuning failure,
Source uplink operation wavelength is then reused, while carrying out the down-going synchronous and initial configuration acquisition work of source downstream wavelength.
5th identification module 321, for judging that down-going synchronous and initial configuration to source downstream wavelength obtain work
Whether succeed.
The forth jump revolving die block 322, for the judging result according to the 5th identification module 321, if to source downlink working wavelength
Down-going synchronous and initial configuration obtain work success, then jump to normal operating conditions.
In one embodiment of the invention, as shown in fig. 6, described device can also include 323 He of the 6th identification module
The fifth jump revolving die block 324, in which:
6th identification module 323, for the judging result according to the 5th identification module 321, if to source downlink working wavelength
Down-going synchronous and initial configuration obtain work it is unsuccessful, then judge uplink tuning timer it is whether overtime.
The fifth jump revolving die block 324, for the judging result according to the 6th identification module 323, if uplink tuning timer is super
When, then jump to init state.
Quickly returning when the tuning failure of TWDM PON ONU wavelength uplink can also be realized based on the above embodiment of the present invention
Rolling, thus under the premise of associated timer is not overtime, quickly returning after effectively realizing the failure of ONU uplink and downlink wavelength tuning
Rolling reduces business interruption time, improves business experience.
Method, apparatus, optical network unit and the nothing for the quick rollback of wavelength tuning that the above embodiment of the present invention provides
Source optical-fiber network provides treatment mechanism and quick rollback machine for all kinds of abnormal conditions being likely to occur in wavelength tuning process
System, after ensuring that exception occurs in ONU uplink and downlink wavelength tuning, under the premise of associated timer has not timed out, can pass through
Preset message interaction process quickly rolls back to original operation wavelength, reduces business interruption time, has existing in operator
The value of application deployment in net.
Device for the quick rollback of wavelength tuning described above can be implemented as being retouched for executing the application
State the general processor, programmable logic controller (PLC) (PLC), digital signal processor (DSP), specific integrated circuit of function
(ASIC), field programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components or it is any appropriately combined.
So far, the present invention is described in detail.In order to avoid covering design of the invention, it is public that this field institute is not described
The some details known.Those skilled in the art as described above, completely it can be appreciated how implementing technology disclosed herein
Scheme.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (10)
1. a kind of method for the quick rollback of wavelength tuning characterized by comprising
Judge whether downstream wavelength tuning of the optical network unit from source downlink working wavelength to target downlink operation wavelength succeeds；
If downstream wavelength tuning failure, carries out down-going synchronous to source downlink working wavelength again and initial configuration obtains work
Make；
Judge to obtain whether work succeeds to the down-going synchronous and initial configuration of source downlink working wavelength；
If the down-going synchronous and initial configuration to source downlink working wavelength obtain work success, normal work shape is jumped to
State；
The method also includes:
If downstream wavelength tunes successfully, carry out from source uplink operation wavelength to the upstream wavelength tune of target uplink operation wavelength
It is humorous；
Judge whether upstream wavelength tuning succeeds；
If upstream wavelength tuning failure, reuses source uplink operation wavelength, while carrying out the down-going synchronous of source downstream wavelength
And initial configuration obtains work；
Judge to obtain whether work succeeds to the down-going synchronous and initial configuration of source downstream wavelength；
If the down-going synchronous and initial configuration to source downlink working wavelength obtain work success, normal work shape is jumped to
State；
Wherein, the source downlink working wavelength and source uplink operation wavelength are the operation wavelength of source optical line terminal, the target
Downlink working wavelength and target uplink operation wavelength are the operation wavelength of target light line terminal；Source optical line terminal and target light
Line terminal is retained and is discharged to the respective resources of source operation wavelength and target operation wavelength in wavelength handoff procedure.
2. the method according to claim 1, wherein further include:
If downstream wavelength tuning failure and the down-going synchronous to source downlink working wavelength and initial configuration obtain work not at
Function then judges whether downlink tuning timer is overtime；
If downlink tunes timer expiry, init state is jumped to.
3. method according to claim 1 or 2, which is characterized in that further include:
If upstream wavelength tunes successfully, normal operating conditions is jumped to.
4. the method according to claim 1, wherein further include:
If upstream wavelength tuning failure and the down-going synchronous to source downlink working wavelength and initial configuration obtain work not at
Function then judges whether uplink tuning timer is overtime；
If uplink tunes timer expiry, init state is jumped to.
5. a kind of device for the quick rollback of wavelength tuning, which is characterized in that including the first identification module, the first rollback mould
Block, the second identification module, the first jump module, uplink tuner module, the 4th identification module, the second roll-back module, the 5th identification
Module and the forth jump revolving die block, in which:
First identification module, for judging down going wave of the optical network unit from source downlink working wavelength to target downlink operation wavelength
Whether long tuning succeeds；
First roll-back module, for the judging result according to the first identification module, if downstream wavelength tuning failure, again to source
Downlink working wavelength carries out down-going synchronous and initial configuration obtains work；
Second identification module, for judging whether down-going synchronous and initial configuration to source downlink working wavelength obtain work
Success；
First jump module, for the judging result according to the second identification module, if to the down-going synchronous of source downlink working wavelength
And initial configuration obtains work success, then jumps to normal operating conditions；
Uplink tuner module carries out if downstream wavelength tunes successfully from source for the judging result according to the first identification module
The upstream wavelength of uplink operation wavelength to target uplink operation wavelength tunes；
4th identification module, for judging whether upstream wavelength tuning succeeds；
Second roll-back module, for the judging result according to the 4th identification module, if upstream wavelength tuning failure, is reused
Source uplink operation wavelength, while carrying out the down-going synchronous and initial configuration acquisition work of source downstream wavelength；
5th identification module, for judge to obtain the down-going synchronous and initial configuration of source downstream wavelength work whether at
Function；
The forth jump revolving die block, for the judging result according to the 5th identification module, if to the down-going synchronous of source downlink working wavelength
And initial configuration obtains work success, then jumps to normal operating conditions；
Wherein, the source downlink working wavelength and source uplink operation wavelength are the operation wavelength of source optical line terminal, the target
Downlink working wavelength and target uplink operation wavelength are the operation wavelength of target light line terminal；Source optical line terminal and target light
Line terminal is retained and is discharged to the respective resources of source operation wavelength and target operation wavelength in wavelength handoff procedure.
6. device according to claim 5, which is characterized in that it further include third identification module and the second jump module,
In:
Third identification module, for the judging result according to the second identification module, if to the down-going synchronous of source downlink working wavelength
And initial configuration acquisition work is unsuccessful, then judges whether downlink tuning timer is overtime；
Second jump module, if downlink tunes timer expiry, jumps to initial according to the judging result of third identification module
Change state.
7. device according to claim 5 or 6, which is characterized in that further include third jump module, in which:
Third jump module jumps to just for the judging result according to the 4th identification module if upstream wavelength tunes successfully
Normal working condition.
8. device according to claim 5, which is characterized in that it further include the 6th identification module and the fifth jump revolving die block,
In:
6th identification module, for the judging result according to the 5th identification module, if to the down-going synchronous of source downlink working wavelength
And initial configuration acquisition work is unsuccessful, then judges whether uplink tuning timer is overtime；
The fifth jump revolving die block is jumped to for the judging result according to the 6th identification module if uplink tunes timer expiry
Init state.
9. a kind of optical network unit for the quick rollback of wavelength tuning, which is characterized in that including any in such as claim 5-8
The device for the quick rollback of wavelength tuning described in.
10. a kind of passive optical network for the quick rollback of wavelength tuning, which is characterized in that including source optical line terminal, target
Optical line terminal and the optical network unit as claimed in claim 9 for being used for the quick rollback of wavelength tuning.
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| CN103391486A (en) * | 2012-05-09 | 2013-11-13 | 中兴通讯股份有限公司 | Method for wave length adjustment, optical line terminal and optical network unit |
| CN104837077A (en) * | 2014-02-12 | 2015-08-12 | 中兴通讯股份有限公司 | Optical line terminal/optical network unit wavelength adjustment method and device |
| WO2015168105A1 (en) * | 2014-04-30 | 2015-11-05 | Huawei Technologies Co., Ltd. | Rogue optical network unit mitigation in passive optical networks |
| CN105191340A (en) * | 2013-02-26 | 2015-12-23 | 中兴通讯股份有限公司 | Channel map for optical network unit activation and rogue behavior prevention |
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| CN103391486A (en) * | 2012-05-09 | 2013-11-13 | 中兴通讯股份有限公司 | Method for wave length adjustment, optical line terminal and optical network unit |
| CN105191340A (en) * | 2013-02-26 | 2015-12-23 | 中兴通讯股份有限公司 | Channel map for optical network unit activation and rogue behavior prevention |
| CN104837077A (en) * | 2014-02-12 | 2015-08-12 | 中兴通讯股份有限公司 | Optical line terminal/optical network unit wavelength adjustment method and device |
| WO2015168105A1 (en) * | 2014-04-30 | 2015-11-05 | Huawei Technologies Co., Ltd. | Rogue optical network unit mitigation in passive optical networks |
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