CN106911418A - Method, device, ONU and EPON for the quick rollback of wavelength tuning - Google Patents
Method, device, ONU and EPON for the quick rollback of wavelength tuning Download PDFInfo
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- CN106911418A CN106911418A CN201510977274.0A CN201510977274A CN106911418A CN 106911418 A CN106911418 A CN 106911418A CN 201510977274 A CN201510977274 A CN 201510977274A CN 106911418 A CN106911418 A CN 106911418A
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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 method for the quick rollback of wavelength tuning, device, ONU and EPON.The method includes：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 and initial configuration acquisition work to source downlink working wavelength again；Judge whether the down-going synchronous of source downlink working wavelength and initial configuration acquisition work are succeeded；If down-going synchronous and initial configuration acquisition the work success to source downlink working wavelength, jump to normal operating conditions.The present invention provides treatment mechanism and quick rollback mechanism by for all kinds of abnormal conditions being likely to occur in wavelength tuning process, after ensuring that exception occur in ONU up-downgoing wavelength tunings, on the premise of associated timer has not timed out, original operation wavelength can quickly be rolled back to by default message interaction process, reduce service outage duration.
Description
Technical field
The present invention relates to communication technical field, more particularly to for the side of the quick rollback of wavelength tuning
Method, device, ONU and EPON.
Background technology
As public customer and government and enterprise customers are for the sustainable growth of network bandwidth requirements, it is based on
The access bandwidth of the optical access network system of EPON/GPON cannot progressively meet all types of user
Demand, respectively as the 10G-EPON and XG-PON of the next generation's evolution of EPON, GPON system
System will start large-scale commercial deployment, but as the exponential type of user bandwidth increases,
10G-EPON and XG-PON are expected bandwidth bottleneck also will quickly occur in not far future.
As the evolution upgrade technique of future generation of XG-PON, when NG-PON2 is using based on wavelength-division
The PON technologies (TWDM PON) of point multiplexing, by introducing four, (long term possesses and extends to
Eight abilities of wavelength pair) uplink and downlink works wavelength pair, the lifting of single PON mouthfuls of access bandwidth is arrived
Descending 40G, up 10G (initial stage)/40G (distant view), can meet in following 5-10
The bandwidth demand of most user of access network.
For TWDM PON technologies, due to introducing the multiplexing technology of wavelength dimension, need
Will be to 4 (8) operation wavelengths being used to being managed and effectively utilizing.For example, a certain
Lower ONU (optical network unit) terminal number of PON mouthfuls of wavelength pair is excessive or due to other
Business demand is needed some ONU by an operation wavelength to moving to another operating wave
At long pair, ONU from source OLT can be realized by ONU sides up-downgoing wavelength tuning function
(optical line terminal) CT (Channel Terminal, the OLT ports of particular job wavelength)
Move to the operation on target OLT CT.
It is upper and lower for ONU in the corresponding international standard ITU-T 989.3 of current TWDM PON
Traveling wave tuning long defines specific interacting message mechanism and tuning migration flow, but marks at present
The content specified in standard, is suitable only for normal wavelength tuning flow, not to wavelength tuning process
Situations such as all kinds of abnormal conditions of middle appearance, such as up-downgoing wavelength tuning fail regulation is specific complete
Feasible exception handling, is only the introduction of corresponding up-downgoing wavelength tuning timer,
It is unified by ONU if ONU remains unfulfilled corresponding wavelength tuning operation after timer expiry
Init state (O1 states) is back to, authentication registration and the operation wavelength choosing of ONU is re-started
The work such as select, the time for causing ONU to recover business take it is long, it is specific as shown in Figure 1.From now on
TWDM PON after operator's existing network Scaledeployment, if using similar abnormal restoring method,
Consumer's Experience may be caused and not good, the acceptance level of extreme influence TWDM PON technologies is perceived.
The content of the invention
In view of above technical problem, the invention provides a kind of side for the quick rollback of wavelength tuning
Method, device, optical network unit ONU and passive optical network PON, it is not overtime in associated timer
On the premise of, the quick rollback after the failure of ONU up-downgoings wavelength tuning is effectively realized, reduce
Service outage duration, improves business experience.
According to an aspect of the present invention, there is provided a kind of method for the quick rollback of wavelength tuning,
Including：
Judge down going wave of the optical network unit from source downlink working wavelength to target downlink operation wavelength
Whether tuning long succeeds；
If downstream wavelength tuning failure, source downlink working wavelength is carried out again down-going synchronous with
And initial configuration acquisition work；
Judge to the down-going synchronous of source downlink working wavelength and initial configuration acquisition work whether
Success；
If down-going synchronous and initial configuration acquisition the work success to source downlink working wavelength,
Then jump to normal operating conditions.
In one embodiment of the invention, methods described also includes：
If down-going synchronous and initial configuration acquisition work to source downlink working wavelength not into
Work(, then judge whether descending tuning timer is overtime；
If descending tuning timer expiry, jumps to init state.
In one embodiment of the invention, methods described also includes：
If downstream wavelength is tuned successfully, carry out from the up operation wavelength in source to the up work of target
The upstream wavelength tuning of wavelength；
Judge whether upstream wavelength tuning succeeds；
If upstream wavelength is tuned successfully, normal operating conditions is jumped to.
In one embodiment of the invention, methods described also includes：
If upstream wavelength tuning failure, reuses the up operation wavelength in source, while the source of carrying out
The down-going synchronous of downstream wavelength and initial configuration acquisition work；
Judge to the down-going synchronous of source downstream wavelength and initial configuration acquisition work whether into
Work(；
If down-going synchronous and initial configuration acquisition the work success to source downlink working wavelength,
Then jump to normal operating conditions.
In one embodiment of the invention, methods described also includes：
If down-going synchronous and initial configuration acquisition work to source downlink working wavelength not into
Work(, then judge whether up tuning timer is overtime；
If up tuning timer expiry, jumps to init state.
According to another aspect of the present invention, there is provided a kind of device for the quick rollback of wavelength tuning,
Including the first identification module, the first roll-back module, the second identification module and the first jump module,
Wherein：
First identification module, under judging optical network unit from source downlink working wavelength to target
Whether the downstream wavelength tuning of row operation wavelength succeeds；
First roll-back module, for the judged result according to the first identification module, if downstream wavelength
Tuning failure, then to source downlink working wavelength carry out down-going synchronous and initial configuration obtained again
Take work；
Second identification module, for judging to the down-going synchronous of source downlink working wavelength and initial
Change configuration and obtain whether work succeeds；
First jump module, for the judged result according to the second identification module, if descending to source
The down-going synchronous of operation wavelength and initial configuration acquisition work success, then jump to normal work
Make state.
In one embodiment of the invention, described device also includes the 3rd identification module and second
Jump module, wherein：
3rd identification module, for the judged result according to the second identification module, if descending to source
The down-going synchronous of operation wavelength and initial configuration acquisition work are unsuccessful, then judge descending tune
Whether humorous timer is overtime；
Second jump module, according to the judged result of the 3rd identification module, if descending tuning timing
Device time-out, then jump to init state.
In one embodiment of the invention, described device also includes up tuner module, the 4th
Identification module and the 3rd jump module, wherein：
Up tuner module, for the judged result according to the first identification module, if downstream wavelength
Tune successfully, then carry out the upstream wavelength from the up operation wavelength in source to the up operation wavelength of target
Tuning；
4th identification module, for judging whether upstream wavelength tuning succeeds；
3rd jump module, for the judged result according to the 4th identification module, if upstream wavelength
Tune successfully, then jump to normal operating conditions.
In one embodiment of the invention, described device also includes the second roll-back module, the 5th
Identification module and the forth jump revolving die block, wherein：
Second roll-back module, for the judged result according to the 4th identification module, if upstream wavelength
Tuning failure, then reuse the up operation wavelength in source, while the source of carrying out downstream wavelength is descending
Synchronization and initial configuration acquisition work；
5th identification module, for judging to match somebody with somebody the down-going synchronous of source downstream wavelength and initialization
Put whether acquisition work succeeds；
The forth jump revolving die block, for the judged result according to the 5th identification module, if descending to source
The down-going synchronous of operation wavelength and initial configuration acquisition work success, then jump to normal work
Make state.
In one embodiment of the invention, described device also includes the 6th identification module and the 5th
Jump module, wherein：
6th identification module, for the judged result according to the 5th identification module, if descending to source
The down-going synchronous of operation wavelength and initial configuration acquisition work are unsuccessful, then judge up tune
Whether humorous timer is overtime；
The fifth jump revolving die block, for the judged result according to the 6th identification module, if up tuning
Timer expiry, then jump to init state.
According to another aspect of the present invention, there is provided a kind of optical-fiber network for the quick rollback of wavelength tuning
Unit, including the device for the quick rollback of wavelength tuning as described in above-mentioned any embodiment.
According to another aspect of the present invention, there is provided a kind of passive light for the quick rollback of wavelength tuning
Network, including source optical line terminal, target light line terminal and as described in above-mentioned any embodiment
The optical network unit for the quick rollback of wavelength tuning.
The present invention provides place by for all kinds of abnormal conditions being likely to occur in wavelength tuning process
Reason mechanism and quick rollback mechanism, after ensuring that exception occur in ONU up-downgoing wavelength tunings,
On the premise of associated timer has not timed out, can be by the quick rollback of default message interaction process
To original operation wavelength, service outage duration is reduced, should with the deployment in operator's existing network
Value.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it is clear that
Ground, drawings in the following description are only some embodiments of the present invention, for the common skill in this area
For art personnel, without having to pay creative labor, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the schematic diagram of ONU wavelength tuning methods 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 the present invention showing for EPON one embodiment of the quick rollback of wavelength tuning
It is intended to.
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
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present invention
It is clearly and completely described, it is clear that described embodiment is only a real part of the invention
Example is applied, rather than whole embodiments.Below to the description reality of at least one exemplary embodiment
On be merely illustrative, never as to the present invention and its application or any limitation for using.Base
Embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part that otherwise illustrates in these embodiments and step it is relative
Arrangement, numerical expression and numerical value are not limited the scope of the invention.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing
It is not to be drawn according to actual proportionate relationship.
May not make in detail for technology, method and apparatus known to person of ordinary skill in the relevant
Discuss, but in the appropriate case, the technology, method and apparatus should be considered as authorizing specification
A part.
In all examples shown here and discussion, any occurrence should be construed as merely and show
Example property, not as limitation.Therefore, the other examples of exemplary embodiment can have not
Same value.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore,
Once being defined in a certain Xiang Yi accompanying drawing, then need not it be entered to advance in subsequent accompanying drawing
One step discussion.
Fig. 2 is schematic diagram of the present invention for method one embodiment of the quick rollback of wavelength tuning.
Preferably, the present embodiment can be performed by the present invention for the device of the quick rollback of wavelength tuning, wherein
The device for the quick rollback of wavelength tuning is arranged on the present invention and is quickly returned for wavelength tuning
On the optical network unit of rolling, the present invention is sentenced by described device with the interacting message and state of OLT
Disconnected conversion, ICTP (Inter Channel Terminal are passed through with reference to source OLT and target OLT
Communication protocol between Protocol, OLT different wave length port) carry out corresponding resource reservation and release
Put, it is possible to achieve the quick rollback after wavelength tuning failure.
Lack corresponding exception handling with the existing ONU wavelength tuning methods shown in Fig. 1
Compare, in Fig. 2 embodiments, the method can also include step 201 and step 202, with complete
Quick rollback into after the failure of ONU up-downgoings wavelength tuning process.Fig. 3 is Fig. 2 embodiments
Detailed maps.
With reference to Fig. 2 and Fig. 3, to normal tuning process in the above embodiment of the present invention and
Occur carrying out the tool of quick rollback under abnormal conditions during the tuning of descending or up operation wavelength
Body flow describes in detail.
Normal ONU up-downgoings wavelength tuning is 102->103->104->201->102.
As shown in Figures 2 and 3, normal tuning process can include：
Step 101, ONU completes normal initial configuration, in init state O1.
Step 102, after normal initial configuration is completed, in normal working condition
O5.1；After management system assigns the order of ONU up-downgoing wavelength tunings, ONU is from O5.1
Working condition has been switched to O5.2 working conditions, proceeds by the tuning work of up-downgoing wavelength.
In an embodiment of the invention, as shown in figure 3, the step 102 in Fig. 2 embodiments can
To include：
Step 1021, after normal initial configuration is completed, in normal operating conditions
O5.1。
Step 1022, after management system assigns the order of ONU up-downgoing wavelength tunings, ONU
Wavelength tuning SBR O5.2 is switched to from normal operating conditions O5.1, has been proceeded by up and down
Traveling wave tuning work long.
Step 103, after default counter reaches preset count, ONU is jumped from O5.2 states
Go to descending non-synchronous regime O8.1.
In an embodiment of the invention, as shown in figure 3, the step 103 in Fig. 2 embodiments can
To include：
Step 1031, carries out the tuning work of downstream wavelength first, and now ONU is in O8.1
State.
Step 1032, carries out downlink optical signal synchronous working, while carrying out corresponding target downlink
The initial configuration work of operation wavelength；Judge optical network unit from source downlink working wavelength to mesh
Whether the downstream wavelength tuning for marking downlink working wavelength succeeds, i.e. the ONU in O8.2 states
Whether the information such as the initial configuration of target downlink operation wavelength are successfully obtained.If downstream wavelength
Tune successfully, then perform step 104；Otherwise, if downstream wavelength tuning failure, performs step
2021。
During normal tuning, in step 1032, ONU has successfully completed the same of downlink optical signal
Step work, and the initial configuration of target downlink operation wavelength accordingly, then perform step afterwards
104。
Step 104, ONU jumps to upstream wavelength tuning state O9, carries out the tune of upstream wavelength
Humorous work.
Step 201, judges whether upstream wavelength tuning succeeds.If upstream wavelength is tuned successfully,
Perform step 102；Otherwise, if upstream wavelength tuning failure, performs step 1031.
During normal tuning, after upstream wavelength is tuned successfully, ONU from O9 states again
Return to normal operating conditions O5.1.Now the operation wavelength of ONU is tuned successfully, ONU's
Operation wavelength is target OLT downstream wavelengths and target OLT upstream wavelengths.
If there are abnormal conditions during the tuning of descending or up operation wavelength, cause
ONU cannot complete descending/upstream wavelength tuning work, and abnormality eliminating method proposed by the present invention (is used
In the method for the quick rollback of wavelength tuning) it is respectively：
Firstth, downstream wavelength tuning failure：
103->202->102 (downstream wavelength tuning timer has not timed out)
103->202->101 (downstream wavelength tuning timer expiries)
In 1032 the step of downstream wavelength tunes failure, i.e. embodiment illustrated in fig. 3, at ONU
The information such as corresponding initial configuration cannot be obtained in O8.2 states, then performs step 2021.
Step 2021, ONU carries out downstream wavelength rollback, i.e., source downlink working wavelength is entered again
Row down-going synchronous and initial configuration acquisition work.
Step 2022, judges to obtain the down-going synchronous and initial configuration of source downlink working wavelength
Take whether work succeeds.If obtained successfully, ONU is jumped to by 202 condition judgment
Normal operating conditions O5.1 shown in 102, now the operation wavelength tuning failure of ONU, ONU
Operation wavelength still be source OLT downstream wavelengths and source OLT upstream wavelengths.Otherwise, if ONU
Again for the synchronization failure of source downlink working wavelength, then judge whether descending tuning timer surpasses
When, if descending tuning timer expiry, ONU jumps back to 101 by 2022 condition judgment
Shown init state O1.
Secondth, upstream wavelength tuning failure：
104->201->103->102 (upstream wavelength tuning timer has not timed out)
104->101 (upstream wavelength tuning timer expiries)
Fail when upstream wavelength is tuned, i.e. ONU cannot be normally complete in the O9 states shown in 104
Tuning and initial work into upstream wavelength, then as shown in figure 3, ONU passes through condition judgment
2011 working conditions for returning to O8.1, abandon (abandoning holding to the tuning work of target operation wavelength
Row step 1032), then perform step 2012.
Step 2012, carries out uplink and downlink wavelength rollback, that is, reuse the up operating wave in source
The synchronous working for carrying out source downstream wavelength simultaneously long.
Step 2022, judges to obtain the down-going synchronous and initial configuration of source downlink working wavelength
Take whether work succeeds.If obtained successfully, i.e., complete again source downstream wavelength synchronization and
The work such as acquisition are configured, then ONU will again jump to the normal operating conditions shown in 102, this
When ONU operation wavelength tuning failure, the operation wavelength of ONU is still source OLT downstream wavelengths
With source OLT upstream wavelengths.
If accordingly fixed during upstream wavelength tunes or re-start source downstream wavelength tuning
When device time-out, then ONU will jump back to the init state O1 shown in 101.
From above-mentioned steps, unless the corresponding timer expiry of up-downgoing wavelength tuning, otherwise goes out
During existing other abnormal conditions, ONU will be realized according to method proposed by the present invention and corresponding system,
Can quickly roll back on source up-downgoing wavelength, realize the fast quick-recovery of business.
TWDM PON ONU up-downgoings wavelength tuning side described by current existing standard specification
Method and system, specify that under normal circumstances, the tuning methods of ONU up-downgoing wavelength, but lack
The weary treatment for various abnormal conditions and quick rollback mechanism, cause to occur business during abnormal conditions
Recovery time is long, it is difficult to meet operator's existing network O＆M demand.
It is one based on the method for the quick rollback of wavelength tuning that the above embodiment of the present invention is provided
Plant TWDM PON ONU sides is carried out by message interaction process and state branching decision condition
Wavelength tuning and the method for quick rollback, for the upper and lower traveling wave of ONU equipment of TWDM PON
Tuner operation long and all kinds of tuning abnormal problems being likely encountered, in normal tuning flow and method
On the basis of, by designing corresponding message interaction process and introducing the devices such as necessary timer, carry
The quick rollback mechanism of operation wavelength is supplied, so that it is guaranteed that business can quick-recovery soon, it is ensured that existing network
Customer service is experienced.
Fig. 4 is the present invention showing for EPON one embodiment of the quick rollback of wavelength tuning
It is intended to.As shown in figure 4, the EPON includes source optical line terminal 100, target light circuit
Terminal 200 and the optical network unit 300 for the quick rollback of wavelength tuning, wherein：
Optical network unit 300 includes the device 310 for the quick rollback of wavelength tuning, for leading to
Cross increase the operation of necessary condition adjudgement and with source optical line terminal 100 and target light line terminal
200 message exchange operations, quick rollback when realizing that the upper and lower traveling wave wavelength tunings of ONU fail.
ICTP is increased between source optical line terminal 100 and target light line terminal 200 newly, so that can
To realize the reservation and release of the source wavelength in wavelength handoff procedure and target wavelength respective resources,
Quick rollback during upper and lower traveling wave wavelength tuning failure is realized so as to ONU.
In an embodiment of the invention, the above-mentioned functions of source optical line terminal 100 specifically can be with source
OLT CT realize that the above-mentioned functions of target light line terminal 200 are specifically as follows target OLT CT
Realize.
To ensure the availability of source up-downgoing wavelength, it is necessary to OLT sides are carried out by ICTP agreements
Corresponding resource retains and discharges, specifically as shown in Figure 4 and Table 1, for the quick rollback of wavelength is provided
Condition.TWDM PON ONU, when the operation of up-downgoing wavelength tuning is carried out, are to ensure ONU
When there are abnormal conditions from source operation wavelength to target operation wavelength tuning, source can be quickly rolled back to
Operation wavelength, the method without specifying according to current standard jumps to init state, source OLT
Needed between target OLT by ICTP agreements carry out wavelength resource cooperate with reservation and discharge,
To ensure the timely release of the availability and target wavelength resource of source up-downgoing wavelength.
Table 1
For example, the source downlink working wavelength that ONU was used before wavelength tuning is carried out, in ONU
Carry out needing the scheme for retaining and discharging as shown in table 1 in different state migration procedures, according to this
The demand of patent, source downstream wavelength only successfully completes up-downgoing wavelength tuning in ONU, from O9
State is just discharged after being transferred to O5.1 states, corresponding in ONU under remaining tuning scene
Timer expiry before, be required to retain source operation wavelength, so that ONU can be fast
Speed rolls back to this source operation wavelength.
Table 1 also specify the corresponding guarantor for the up operation wavelength in source and target up-downgoing wavelength
Stay and release embodiments, by such design, it is possible to achieve wavelength resource on source and target OLT
Be effectively retained and discharge, be that ONU carries out the quick rollback of possible wavelength and creates necessary condition.
Based on the passive optical network for the quick rollback of wavelength tuning that the above embodiment of the present invention is provided
Network, treatment mechanism and fast is provided for all kinds of abnormal conditions that are likely to occur in wavelength tuning process
Fast rollback mechanism, source wavelength and target wavelength thus, it is possible to realize in wavelength handoff procedure are accordingly provided
The reservation in source and quick rollback, after ensuring that exception occur in ONU up-downgoing wavelength tunings,
On the premise of associated timer has not timed out, can be by the quick rollback of default message interaction process
To original operation wavelength, service outage duration is reduced, should with the deployment in operator's existing network
Value.
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, the device for the quick rollback of wavelength tuning described in Fig. 4 embodiments can be with
Including the first identification module 311, the first roll-back module 312, the second identification module 313 and
One jump module 314, wherein：
First identification module 311, for judging optical network unit from source downlink working wavelength to mesh
Whether the downstream wavelength tuning for marking downlink working wavelength succeeds.
First roll-back module 312, for the judged result according to the first identification module 311, if
Downstream wavelength tuning failure, then carry out to source downlink working wavelength down-going synchronous and initial again
Change configuration and obtain work.
Second identification module 313, for judging to the down-going synchronous of source downlink working wavelength and
Whether initial configuration acquisition work succeeds.
First jump module 314, for the judged result according to the second identification module 313, if
Down-going synchronous and initial configuration acquisition work success to source downlink working wavelength, then redirect
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.
Compared with embodiment illustrated in fig. 5, in the embodiment shown in fig. 6, described device can also include the
Three identification modules 315 and the second jump module 316, wherein：
3rd identification module 315, for the judged result according to the second identification module 313, if
Down-going synchronous and initial configuration acquisition work to source downlink working wavelength are unsuccessful, then sentence
Whether disconnected descending tuning timer is overtime.
Second jump module 316, according to the judged result of the 3rd identification module 315, if descending
Tuning timer expiry, then jump to init state.
Based on the device for the quick rollback of wavelength tuning that the above embodiment of the present invention is provided, can
To realize quick rollback when the descending tuning of TWDM PON ONU wavelength fails, so that
On the premise of associated timer is not overtime, the failure of ONU up-downgoings wavelength tuning is effectively realized
Quick rollback afterwards, reduces service outage duration, improves business experience.
In one embodiment of the invention, as shown in fig. 6, described device can also include it is upper
Row tuner module 317, the 4th identification module 318 and the 3rd jump module 319, wherein：
Up tuner module 317, for the judged result according to the first identification module 311, if
Downstream wavelength is tuned successfully, then carried out from the up operation wavelength in source to the up operation wavelength of target
Upstream wavelength is tuned.
4th identification module 318, for judging whether upstream wavelength tuning succeeds.
3rd jump module 319, for the judged result according to the 4th identification module 318, if
Upstream wavelength is tuned successfully, then jump to normal operating conditions.
The above embodiment of the present invention can also realize normal wavelength tuning function, so as to realize
ONU moves to the operation on target OLT CT from source OLT CT
In one embodiment of the invention, as shown in fig. 6, described device can also include the
Two roll-back modules 320, the 5th identification module 321 and the forth jump revolving die block 322, wherein：
Second roll-back module 320, for the judged result according to the 4th identification module 318, if
Upstream wavelength tuning failure, then reuse the up operation wavelength in source, while the source of carrying out down going wave
Down-going synchronous long and initial configuration acquisition work.
5th identification module 321, for judging to the down-going synchronous of source downstream wavelength and initial
Change configuration and obtain whether work succeeds.
The forth jump revolving die block 322, for the judged result according to the 5th identification module 321, if
Down-going synchronous and initial configuration acquisition work success to source downlink working wavelength, then redirect
To normal operating conditions.
In one embodiment of the invention, as shown in fig. 6, described device can also include the
Six identification modules 323 and the fifth jump revolving die block 324, wherein：
6th identification module 323, for the judged result according to the 5th identification module 321, if
Down-going synchronous and initial configuration acquisition work to source downlink working wavelength are unsuccessful, then sentence
Whether disconnected up tuning timer is overtime.
The fifth jump revolving die block 324, for the judged result according to the 6th identification module 323, if
Up tuning timer expiry, then jump to init state.
Can also realize that TWDM PON ONU wavelength is up based on the above embodiment of the present invention
Quick rollback during tuning failure, it is effectively real so as on the premise of associated timer is not overtime
Show the quick rollback after the failure of ONU up-downgoings wavelength tuning, reduce service outage duration,
Improve business experience.
The above embodiment of the present invention provide the method for the quick rollback of wavelength tuning, device,
Optical network unit and EPON, for all kinds of exceptions being likely to occur in wavelength tuning process
Situation provides treatment mechanism and quick rollback mechanism, ensures that ONU up-downgoing wavelength
After exception occurs in tuning, on the premise of associated timer has not timed out, can be disappeared by default
Breath interaction flow quickly rolls back to original operation wavelength, reduces service outage duration, has
The value of application deployment in operator's existing network.
Device for the quick rollback of wavelength tuning described above can be implemented as holding
The general processor of row function described herein, programmable logic controller (PLC) (PLC), number
Word signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array
(FPGA) or other PLDs, 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, do not have
Description some details known in the field.Those skilled in the art as described above, completely
It can be appreciated how implementing technical scheme disclosed herein.
One of ordinary skill in the art will appreciate that realizing all or part of step of above-described embodiment
Can be completed by hardware, it is also possible to instruct the hardware of correlation to complete by program, it is described
Program can be stored in a kind of computer-readable recording medium, and storage medium mentioned above can be with
It is read-only storage, disk or CD etc..
Description of the invention is given for the sake of example and description, and is not exhaustively
Or limit the invention to disclosed form.Common skill of many modifications and variations for this area
It is obvious for art personnel.Selection and description embodiment are to more preferably illustrate principle of the invention
And practical application, and make one of ordinary skill in the art it will be appreciated that the present invention is suitable so as to design
In the various embodiments with various modifications of special-purpose.
Claims (12)
1. a kind of method for the quick rollback of wavelength tuning, it is characterised in that including：
Judge down going wave of the optical network unit from source downlink working wavelength to target downlink operation wavelength
Whether tuning long succeeds；
If downstream wavelength tuning failure, source downlink working wavelength is carried out again down-going synchronous with
And initial configuration acquisition work；
Judge to the down-going synchronous of source downlink working wavelength and initial configuration acquisition work whether
Success；
If down-going synchronous and initial configuration acquisition the work success to source downlink working wavelength,
Then jump to normal operating conditions.
2. method according to claim 1, it is characterised in that also include：
If down-going synchronous and initial configuration acquisition work to source downlink working wavelength not into
Work(, then judge whether descending tuning timer is overtime；
If descending tuning timer expiry, jumps to init state.
3. method according to claim 1 and 2, it is characterised in that also include：
If downstream wavelength is tuned successfully, carry out from the up operation wavelength in source to the up work of target
The upstream wavelength tuning of wavelength；
Judge whether upstream wavelength tuning succeeds；
If upstream wavelength is tuned successfully, normal operating conditions is jumped to.
4. method according to claim 3, it is characterised in that also include：
If upstream wavelength tuning failure, reuses the up operation wavelength in source, while the source of carrying out
The down-going synchronous of downstream wavelength and initial configuration acquisition work；
Judge to the down-going synchronous of source downstream wavelength and initial configuration acquisition work whether into
Work(；
If down-going synchronous and initial configuration acquisition the work success to source downlink working wavelength,
Then jump to normal operating conditions.
5. method according to claim 4, it is characterised in that also include：
If down-going synchronous and initial configuration acquisition work to source downlink working wavelength not into
Work(, then judge whether up tuning timer is overtime；
If up tuning timer expiry, jumps to init state.
6. a kind of device for the quick rollback of wavelength tuning, it is characterised in that know including first
Other module, the first roll-back module, the second identification module and the first jump module, wherein：
First identification module, under judging optical network unit from source downlink working wavelength to target
Whether the downstream wavelength tuning of row operation wavelength succeeds；
First roll-back module, for the judged result according to the first identification module, if downstream wavelength
Tuning failure, then to source downlink working wavelength carry out down-going synchronous and initial configuration obtained again
Take work；
Second identification module, for judging to the down-going synchronous of source downlink working wavelength and initial
Change configuration and obtain whether work succeeds；
First jump module, for the judged result according to the second identification module, if descending to source
The down-going synchronous of operation wavelength and initial configuration acquisition work success, then jump to normal work
Make state.
7. device according to claim 6, it is characterised in that also including the 3rd identification mould
Block and the second jump module, wherein：
3rd identification module, for the judged result according to the second identification module, if descending to source
The down-going synchronous of operation wavelength and initial configuration acquisition work are unsuccessful, then judge descending tune
Whether humorous timer is overtime；
Second jump module, according to the judged result of the 3rd identification module, if descending tuning timing
Device time-out, then jump to init state.
8. the device according to claim 6 or 7, it is characterised in that also including up tune
Humorous module, the 4th identification module and the 3rd jump module, wherein：
Up tuner module, for the judged result according to the first identification module, if downstream wavelength
Tune successfully, then carry out the upstream wavelength from the up operation wavelength in source to the up operation wavelength of target
Tuning；
4th identification module, for judging whether upstream wavelength tuning succeeds；
3rd jump module, for the judged result according to the 4th identification module, if upstream wavelength
Tune successfully, then jump to normal operating conditions.
9. device according to claim 8, it is characterised in that also including the second rollback mould
Block, the 5th identification module and the forth jump revolving die block, wherein：
Second roll-back module, for the judged result according to the 4th identification module, if upstream wavelength
Tuning failure, then reuse the up operation wavelength in source, while the source of carrying out downstream wavelength is descending
Synchronization and initial configuration acquisition work；
5th identification module, for judging to match somebody with somebody the down-going synchronous of source downstream wavelength and initialization
Put whether acquisition work succeeds；
The forth jump revolving die block, for the judged result according to the 5th identification module, if descending to source
The down-going synchronous of operation wavelength and initial configuration acquisition work success, then jump to normal work
Make state.
10. device according to claim 9, it is characterised in that also including the 6th identification
Module and the fifth jump revolving die block, wherein：
6th identification module, for the judged result according to the 5th identification module, if descending to source
The down-going synchronous of operation wavelength and initial configuration acquisition work are unsuccessful, then judge up tune
Whether humorous timer is overtime；
The fifth jump revolving die block, for the judged result according to the 6th identification module, if up tuning
Timer expiry, then jump to init state.
A kind of 11. optical network units for the quick rollback of wavelength tuning, it is characterised in that bag
Include the device for the quick rollback of wavelength tuning as any one of claim 6-10.
A kind of 12. EPONs for the quick rollback of wavelength tuning, it is characterised in that bag
Include source optical line terminal, target light line terminal and be used for wavelength as claimed in claim 11
Tune the optical network unit of quick rollback.
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| CN201510977274.0A CN106911418B (en) | 2015-12-23 | 2015-12-23 | For the method, apparatus of the quick rollback of wavelength tuning, ONU and passive optical network |
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| CN201510977274.0A CN106911418B (en) | 2015-12-23 | 2015-12-23 | For the method, apparatus of the quick rollback of wavelength tuning, ONU and passive optical network |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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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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