CN106160918A - The energy-saving control method of OLT port and device in TWDM PON network - Google Patents

The energy-saving control method of OLT port and device in TWDM PON network Download PDF

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Publication number
CN106160918A
CN106160918A CN201510199712.5A CN201510199712A CN106160918A CN 106160918 A CN106160918 A CN 106160918A CN 201510199712 A CN201510199712 A CN 201510199712A CN 106160918 A CN106160918 A CN 106160918A
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olt
port
dormancy
onu
olt port
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CN106160918B (en
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金嘉亮
蒋铭
沈成彬
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Abstract

The invention discloses energy-saving control method and the device of OLT port in a kind of TWDM PON, relate to optical access network field.Wherein energy-saving control method includes: judge whether to select OLT port to enter dormancy from OLT system according to total traffic load situation of OLT system;When judging to select OLT port to enter dormancy, add up the traffic load situation of each OLT port, select the OLT port of traffic load minimum as the OLT port needing dormancy;The ONU hung under this OLT port is migrated to other OLT ports, then controls this OLT port and enter park mode.The present invention, from the actual demand of existing network service operation, using OLT port payload as the foundation selecting OLT port to carry out dormancy, can reduce the quantity of business migration.

Description

The energy-saving control method of OLT port and device in TWDM PON
Technical field
The present invention relates to optical access network field, particularly to a kind of TWDM, (time-division wavelength-division is multiple With) OLT (optical line terminal) port is energy-conservation in PON (passive optical access network) network Control method and device.
Background technology
The green energy conservation of communication system and low carbonization are that the outer operator of Now Domestic pays close attention to jointly Problem, and access network due to huge, equipment is numerous, according to ASSOCIATE STATISTICS, occupies net More than the 70% of network energy consumption, therefore, promotes green energy conservation technology tool in the research and development of access network field There are good economy and social value.
In time division multiplex PON system, owing to operation wavelength is identical, different OLT ports Under ONU (optical network unit) cannot interconnect, can only operate in OLT itself Under port, wavelength otherwise can be caused to disturb.Therefore, in time division multiplex PON system, OLT Port cannot realize ONU dynamic migration and energy-conservation sleep mode.
TWDM PON system has additionally introduced again wavelength-division multiplex on the basis of time division multiplex Work dimension, therefore the colorless ONU under different OLT ports can realize free migration, As long as ONU changes the operation wavelength of oneself optical transceiver, it is possible to from different OLT ends The existing service interfacing of cause for gossip.Therefore, TWDM PON system can would operate in a certain wavelength ONU under OLT port moves under the OLT port of other operation wavelengths, then should OLT port enters dormancy, thus realizes energy-conservation sleep mode.
But, prior art states the energy-conservation control of OLT port in TWDM PON in realization Time processed, OLT port is selected to carry out dormancy, if choosing according to OLT port numbering size OLT port under hang with the more ONU that enlivens, large-scale business migration may be caused Process, increase the weight of network processes load.Additionally, prior art is when business migration processing controls, For being in the ONU of active state (i.e. normal operating conditions), there is the most complete migration Control administrative mechanism, but lack ripe migration control for being in the ONU of park mode Making mechanism, it is likely that cause the dormancy ONU cannot be by the migration machine as enlivening ONU System is successfully completed migration, thus after causing the doze output time-out of dormancy ONU to wake up up, sends out Now cannot be normally mutual with original OLT port, cause that dormancy ONU is the most spontaneous and restart on Line, returns to register state of activation and finds OLT port, cause whole system bigger Instantaneous load, has a strong impact on existing network business.
Summary of the invention
It is an object of the invention to the energy-conservation control of OLT port in TWDM PON During system, reduce business migration as far as possible and process.
It is a further object of the invention that the energy-conservation of in TWDM PON OLT port During control, it is to avoid dormancy ONU is the most spontaneous restarts and reach the standard grade so that affecting existing network business.
The first aspect of the invention provides OLT port in a kind of TWDM PON Energy-saving control method, including: according to total traffic load feelings of optical line terminal OLT system Condition judges whether to select OLT port to enter dormancy from OLT system;When judge can During to select OLT port to enter dormancy, add up the traffic load situation of each OLT port, Select the OLT port of traffic load minimum as the OLT port needing dormancy;By this business The optical network unit ONU hung under the OLT port that load is minimum migrates to other OLT ports, Control the minimum OLT port of this traffic load and enter park mode.
In one embodiment, judging whether according to total traffic load situation of OLT system can Include to select OLT port to enter dormancy from OLT system: if institute in OLT system There is the quantity summation enlivening ONU and dormancy ONU less than or equal to (N-1) × every OLT end The maximum open ended ONU quantity of mouth, then can select OLT port to enter from OLT system Enter dormancy, otherwise, it is impossible to selection OLT port entrance dormancy from OLT system, wherein, In OLT system, OLT port number is N.
In one embodiment, add up the traffic load situation of each OLT port, select industry The OLT port of business load minimum includes as the OLT port needing dormancy: add up each That hangs under OLT port enlivens ONU quantity and dormancy ONU quantity;Select the active of lower extension The OLT port of ONU minimum number is as the OLT port needing dormancy;If there is extremely Hang under few two OLT ports to enliven ONU quantity identical and be minima, therefrom select The OLT port of dormancy ONU minimum number is as the OLT port needing dormancy;If deposited Hang under at least two OLT port to enliven ONU quantity identical and be minima, simultaneously The dormancy ONU quantity of lower extension is identical and is minima, by the wavelength channel of OLT port Numbering therefrom selects can be with the OLT port of dormancy, or therefrom randomly choose can be with dormancy OLT port.
In one embodiment, the ONU hung under OLT port minimum for this traffic load is moved Move to other OLT ports, control the minimum OLT port of this traffic load and enter park mode, Including: the ONU that enlivens hung under the OLT port minimum by this traffic load migrates to other OLT port, if the OLT port of this traffic load minimum hangs with down dormancy ONU, will stop Dormancy ONU wakes up up and migrates to other OLT ports, controls the OLT that this traffic load is minimum Port enters park mode;Or, the work hung under the OLT port minimum by this traffic load The ONU that jumps migrates to other OLT ports, if the minimum OLT port of this traffic load also under Hang with dormancy ONU, opening timing device, dormancy ONU is waken up up and migrates to other OLT Port, if after timer expiry, still has ONU not respond or be not fully complete business migration work Make, control the minimum OLT port of this traffic load and enter park mode.
In one embodiment, periodically judging whether according to the cycle arranged can be from OLT system System select OLT port enter dormancy.
In one embodiment, the method also includes: check the OLT port joint of OLT system Park mode enable whether opening, if opening, then carrying out the Energy Saving Control of OLT port.
The second aspect of the invention provides OLT port in a kind of TWDM PON Energy-saving control device, including dormancy judge module, for according to optical line terminal OLT Total traffic load situation of system judges whether OLT port to be selected from OLT system to enter Enter dormancy;Port selects module, judges to select OLT port to enter dormancy for working as Time, add up the traffic load situation of each OLT port, select the OLT that traffic load is minimum Port is as the OLT port needing dormancy;Dormancy processing module, for by this traffic load The optical network unit ONU hung under minimum OLT port migrates to other OLT ports, control Make the minimum OLT port of this traffic load and enter park mode.
In one embodiment, dormancy judge module specifically for: if institute in OLT system There is the quantity summation enlivening ONU and dormancy ONU less than or equal to (N-1) × every OLT end The maximum open ended ONU quantity of mouth, then can select OLT port to enter from OLT system Enter dormancy, otherwise, it is impossible to selection OLT port entrance dormancy from OLT system, wherein, In OLT system, OLT port number is N.
In one embodiment, port select module specifically for: add up each OLT port Lower extension enliven ONU quantity and dormancy ONU quantity;Select lower extension enlivens ONU quantity Minimum OLT port is as the OLT port needing dormancy;If there is at least two OLT Hang under port to enliven ONU quantity identical and be minima, therefrom select dormancy ONU number Measure minimum OLT port as the OLT port needing dormancy;If there is at least two Hang under OLT port to enliven ONU quantity identical and be minima, with the dormancy hung at present ONU quantity is identical and is minima, is numbered by the wavelength channel of OLT port and therefrom selects Selecting can be with the OLT port of dormancy, or therefrom randomly choose can be with the OLT port of dormancy.
In one embodiment, dormancy processing module specifically for: this traffic load is minimum The ONU that enlivens hung under OLT port migrates to other OLT ports, if this traffic load is Little OLT port hangs with down dormancy ONU, is waken up up by dormancy ONU and migrates to other OLT port, controls the minimum OLT port of this traffic load and enters park mode;Or, The ONU that enlivens hung under the OLT port minimum by this traffic load migrates to other OLT ends Mouthful, if the minimum OLT port of this traffic load hangs with down dormancy ONU, opening timing device, Dormancy ONU waken up up and migrates to other OLT ports, if after timer expiry, still having ONU does not responds or is not fully complete business migration work, controls the OLT that this traffic load is minimum Port enters park mode.
In one embodiment, dormancy judge module is specifically for periodically sentencing according to the cycle arranged Break and OLT port whether can be selected from OLT system to enter dormancy.
In one embodiment, this device also includes: enables module, is used for checking OLT system Whether the energy-conservation park mode of OLT port of system enables and opens, if opening, then carries out OLT end The Energy Saving Control of mouth.
The present invention at least has the advantage that
On the one hand, the present invention is from the actual demand of existing network service operation, with OLT port Payload, as the foundation selecting OLT port to carry out dormancy, can reduce business migration Quantity, particularly can at utmost reduce and enliven ONU and interrupt regular traffic and carry out business and move The quantity moved.
On the other hand, the present invention, in business migration processes, considers simultaneously and is in park mode The concrete processing mode of ONU, carries out business migration by waking up dormancy ONU in advance up, reduces Its service recovery time, it is to avoid or reduce ONU spontaneous restart reach the standard grade, reduce to existing network business Impact.
By detailed description to the exemplary embodiment of the present invention referring to the drawings, the present invention Further feature and advantage will be made apparent from.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will The accompanying drawing used required in embodiment or description of the prior art is briefly described, it is clear that Ground, the accompanying drawing in describing below is only some embodiments of the present invention, skill common for this area From the point of view of art personnel, on the premise of not paying creative work, it is also possible to obtain according to these accompanying drawings Obtain other accompanying drawing.
Fig. 1 is TWDM PON configuration diagram.
Fig. 2 be the present invention TWDM PON in the energy-saving control method one of OLT port The schematic flow sheet of embodiment.
Fig. 3 be the present invention TWDM PON in the energy-saving control method of OLT port another The schematic flow sheet of individual embodiment.
Fig. 4 and Fig. 5 is the system that the Energy Saving case of the present invention does not carries out energy-conservation dormancy View and the system mode schematic diagram after completing energy-conservation dormancy.
Fig. 6 be the present invention TWDM PON in the energy-saving control device of OLT port The structural representation of one embodiment.
Fig. 7 be the present invention TWDM PON in the energy-saving control device of OLT port The structural representation of further embodiment.
Detailed description of the invention
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.
The present invention is directed to TWDM PON environment, propose the energy-conservation of a kind of OLT port Control program.With reference to the TWDM PON configuration diagram shown in Fig. 1, at TWDM In PON system, the up-downgoing wavelength that different OLT ports are used is to different, each ONU is colourless, and the optical transceiver wavelength that so-called colorless ONU refers to ONU is also adjustable Humorous, can be operated in as required below any one OLT port.
Can be with tuning characteristic based on the wavelength of colorless ONU in TWDM PON, this The energy-saving control method of OLT port in bright proposition a kind of TWDM PON, with reference to figure Shown in 2, the method for the present embodiment comprises the following steps:
S202, judging whether according to total traffic load situation of OLT system can be from OLT System select OLT port enter dormancy.
S204, when judging to select OLT port to enter dormancy, adds up each OLT The traffic load situation of port, selects the OLT port of traffic load minimum as needs dormancy OLT port.
S206, the optical network unit ONU hung under the OLT port minimum by this traffic load Migrate to other OLT ports, control the minimum OLT port of this traffic load and enter dormancy Pattern.
Above-described embodiment is from the actual demand of existing network service operation, with OLT port load Size, as the foundation selecting OLT port to carry out dormancy, can reduce the quantity of business migration.
In step S202, a kind of exemplary implementation, following methods can be used to sentence Break and OLT port whether can be selected from OLT system to enter dormancy, the most whether meet bar Part can enter park mode:
If OLT port number is N in OLT system, if all active in OLT system The quantity summation of ONU and dormancy ONU is less than or equal to (N-1) × every OLT port Big open ended ONU quantity, then can select OLT port to enter from OLT system and stop Sleep, otherwise, it is impossible to select OLT port to enter dormancy from OLT system.
Above-mentioned determination methods first determined whether to carry out the end of Energy Saving Control before Energy Saving Control Mouth resource, if there being the port resource carrying out Energy Saving Control to carry out the Energy Saving Control of OLT port again, The blindness of Energy Saving Control can be avoided.
When implementing step S202, periodically can judge whether permissible according to the cycle arranged OLT port is selected to enter dormancy from OLT system.This periodic determination methods is not required to The most individually to trigger judgement step, can find to carry out the situation of Energy Saving Control in time, Thus carry out Energy Saving Control much sooner.Periodically determination methods can be by arranging timing The mode of device realizes, and often reaches a timing, then triggers a judge process.
In step S204, a kind of exemplary implementation, following methods can be used to select Need the OLT port of dormancy:
Add up hang under each OLT port enliven ONU quantity and dormancy ONU quantity, choosing Select the OLT port enlivening ONU minimum number of lower extension as needing the OLT port of dormancy, Thus at utmost reduce and enliven ONU and interrupt regular traffic and carry out the quantity of business migration.As Fruit exist hang under at least two OLT port to enliven ONU quantity identical and be minima, Therefrom select the OLT port of dormancy ONU minimum number as the OLT port needing dormancy. If there is under at least two OLT port hang enliven ONU quantity identical and be minima, Identical with the dormancy ONU quantity hung at present and be minima, by the wavelength of OLT port Channel number size the most therefrom selects with the OLT port of dormancy, or to select the most at random Selecting can be with the OLT port of dormancy.
The selection scheme of above-mentioned dormancy OLT port, pays the utmost attention to enliven the migration quantity of ONU, At utmost reduce and enliven ONU and interrupt regular traffic and carry out the quantity of business migration, also simultaneously Consider the impact for business migration of the dormancy ONU quantity.
In step S206, such as, following methods can be used to carry out migration and the dormancy of ONU Control:
First method, the ONU that enlivens hung under the OLT port minimum by this traffic load moves Move to other OLT ports, hang dormancy ONU if not lower, then can control this traffic load Minimum OLT port enters park mode, if the minimum OLT port of this traffic load also under Hang with dormancy ONU, dormancy ONU wakes up and migrates to other OLT ports, the most again up Control the minimum OLT port of this traffic load and enter park mode.By waking up dormancy in advance up ONU carries out business migration, reduces its service recovery time, it is to avoid ONU is spontaneous restarts and reach the standard grade, Reduce the impact on existing network business.
Second method, the ONU that enlivens hung under the OLT port minimum by this traffic load moves Move to other OLT ports, hang dormancy ONU if not lower, then can control this traffic load Minimum OLT port enters park mode, if the minimum OLT port of this traffic load also under Hanging with dormancy ONU, opening timing device, in timing, by dormancy ONU as much as possible Wake up up and migrate to other OLT ports, after timer expiry, if still there being ONU not respond Or it is not fully complete business migration work, for ensureing that OLT port can enter dormancy the most in time Pattern, then abandon the process to residue ONU, controls the OLT port that this traffic load is minimum Enter park mode.
These are not fully complete the ONU of migration, owing to this OLT port has been switched off, and subsequently can nothing Method receives the downlink data that OLT port issues, when receiving downlink data in certain time Time, these ONU can restart authentication registration process, now, OLT system again be These ONU share out the work wavelength and concrete OLT port, but this process compares OLT It is more time-consuming that port actively wakes up migration up, and a large amount of ONU restart simultaneously after carry out registration and recognize Card also brings bigger instantaneous load to OLT system, and therefore the present invention first passes through actively Wake up migration pattern up and process the ONU of energy-conservation park mode, after timer expiry, consider further that use System itself re-register identifying procedure, at utmost reduce the impact on existing network business.
Fig. 3 be the present invention TWDM PON in the energy-saving control method of OLT port The schematic flow sheet of another embodiment.With reference to shown in Fig. 3, the method for the present embodiment include with Lower step:
The energy-conservation park mode of S302, OLT port can manually be turned on and off, and OLT passes through Set intervalometer T1, in the timing cycle of intervalometer T1, make regular check on OLT system Whether the energy-conservation park mode of OLT port enables and opens.
S304, opens if the energy-conservation park mode of OLT port enables, and OLT system is by setting Determine intervalometer T2, in the timing cycle of intervalometer T2, make regular check on and judge all OLT Whether whether port meets condition can enter energy-conservation park mode, namely can be from OLT system System select OLT port enter dormancy.Decision condition is with reference to the realization side of abovementioned steps S202 Formula.
S306, selects to need to enter the OLT port of energy-conservation park mode, specifically chosen method With reference to the implementation of abovementioned steps S204, the ONU that enlivens under this OLT port is migrated To other OLT ports.ONU can come by changing the optical transceiver operation wavelength of self Move under other OLT ports.
S308, after completing to enliven the migration work of ONU, whether system judges this OLT port Also it is in the ONU of park mode.
S310, if not in the ONU of park mode, directly performs step S312 and enters Energy-conservation park mode, if there being the ONU being in park mode, opening timing device T3, to this A little ONU carry out waking up up and business migration work.If after intervalometer T3 time-out, still having part ONU does not responds or is not fully complete business migration work, for ensureing that OLT port can enter smoothly Energy-conservation park mode, then abandon the process to these ONU, performs step S312 and enters energy-conservation Park mode.
S312, this OLT port enters energy-conservation park mode.
S314, for entering the OLT port of energy-conservation park mode, when active in OLT system ONU quantity increases, and when exceeding the ability that current OLT port can be received, system can be right Dormancy OLT port wakes up up so that it is exit park mode, returns and enlivens duty.
As shown in Figure 4 and Figure 5, Fig. 4 is not for carry out for one Energy Saving case of OLT port The system mode schematic diagram of energy-conservation dormancy, it is assumed that OLT port enlivens ONU quantity 2 times Minimum, therefore determined to enter energy-conservation resting state, after Fig. 5 has been energy-conservation dormancy by system System mode schematic diagram, now OLT port 2 is closed, and its lower ONU hung is migrated to OLT port 3 and OLT port 4 times.
Present invention also offers the Energy Saving Control of OLT port in a kind of TWDM PON Device, with reference to Fig. 6, this energy-saving control device includes:
Dormancy judge module 602, for the total traffic load according to optical line terminal OLT system Situation judges whether to select OLT port to enter dormancy from OLT system;
Port selects module 604, is used for when judging to select OLT port to enter dormancy, Add up the traffic load situation of each OLT port, select the OLT port that traffic load is minimum As the OLT port needing dormancy;
Dormancy processing module 606, the light hung under the OLT port that this traffic load is minimum NE ONU migrates to other OLT ports, controls the OLT that this traffic load is minimum Port enters park mode.
A kind of implementation, dormancy judge module 602 specifically for: if in OLT system All quantity summations of ONU and dormancy ONU of enlivening are less than or equal to (N-1) × every OLT The maximum open ended ONU quantity of port, then can select OLT port from OLT system Enter dormancy, otherwise, it is impossible to selection OLT port entrance dormancy from OLT system, wherein, In OLT system, OLT port number is N.
A kind of implementation, port select module 604 specifically for: add up each OLT end That hangs under mouthful enlivens ONU quantity and dormancy ONU quantity;Select lower extension enlivens ONU number Measure minimum OLT port as the OLT port needing dormancy;If there is at least two Hang under OLT port to enliven ONU quantity identical and be minima, therefrom select dormancy The OLT port of ONU minimum number is as the OLT port needing dormancy;If there is extremely Hang under few two OLT ports to enliven ONU quantity identical and be minima, with hanging at present Dormancy ONU quantity identical and be minima, numbered by the wavelength channel of OLT port Therefrom selecting can be with the OLT port of dormancy, or therefrom randomly choose can be with the OLT of dormancy Port.
A kind of implementation, dormancy processing module 606 specifically for: this traffic load is minimum OLT port under hang the ONU that enlivens migrate to other OLT ports, if this traffic load Minimum OLT port hangs with down dormancy ONU, is waken up up by dormancy ONU and migrates to it His OLT port, controls the minimum OLT port of this traffic load and enters park mode;Or, The ONU that enlivens hung under the OLT port minimum by this traffic load migrates to other OLT ends Mouthful, if the minimum OLT port of this traffic load hangs with down dormancy ONU, opening timing device, Dormancy ONU waken up up and migrates to other OLT ports, if after timer expiry, still having ONU does not responds or is not fully complete business migration work, controls the OLT that this traffic load is minimum Port enters park mode.
A kind of implementation, dormancy judge module 602 is specifically for regular according to the cycle arranged Judge whether to select OLT port to enter dormancy from OLT system.
Further, with reference to Fig. 7, this energy-saving control device also includes: enables module 708, is used for Check that the energy-conservation park mode of OLT port of OLT system enables whether to open, if opening, then Carry out the Energy Saving Control of OLT port.
The present invention at least has the advantage that
On the one hand, the present invention is from the actual demand of existing network service operation, with OLT port Payload, as the foundation selecting OLT port to carry out dormancy, can reduce business migration Quantity, particularly can at utmost reduce and enliven ONU and interrupt regular traffic and carry out business and move The quantity moved.
On the other hand, the present invention, in business migration processes, considers simultaneously and is in park mode The concrete processing mode of ONU, carries out business migration by waking up dormancy ONU in advance up, reduces Its service recovery time, it is to avoid or reduce ONU spontaneous restart reach the standard grade, reduce to existing network business Impact.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can To be completed by hardware, it is also possible to instruct relevant hardware by program and complete, described journey Sequence can be stored in a kind of readable storage medium storing program for executing, and storage medium mentioned above can be read-only depositing Reservoir, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. made, all should wrap Within being contained in protection scope of the present invention.

Claims (12)

1. an energy-saving control method for OLT port, its feature in TWDM PON It is, including:
Total traffic load situation according to optical line terminal OLT system judges whether can be from OLT system select OLT port enter dormancy;
When judging to select OLT port to enter dormancy, add up each OLT port Traffic load situation, selects the OLT port of traffic load minimum as the OLT needing dormancy Port;
The optical network unit ONU hung under the OLT port minimum by this traffic load migrates to it His OLT port, controls the minimum OLT port of this traffic load and enters park mode.
2. the method for claim 1, it is characterised in that described according to OLT system Total traffic load situation judge whether can to select from OLT system OLT port to enter to stop Dormancy includes:
If in OLT system all quantity summations enlivening ONU and dormancy ONU less than or Equal to the maximum open ended ONU quantity of (N-1) × every OLT port, then can be from OLT System select OLT port enter dormancy, otherwise, it is impossible to select OLT from OLT system Port enters dormancy, and wherein, in OLT system, OLT port number is N.
3. method as claimed in claim 1 or 2, it is characterised in that described statistics is each The traffic load situation of OLT port, selects the OLT port of traffic load minimum as needs The OLT port of dormancy includes:
Add up under each OLT port hang enliven ONU quantity and dormancy ONU quantity;
Select the lower OLT port enlivening ONU minimum number hung as the OLT needing dormancy Port;
If there is hang under at least two OLT port to enliven ONU quantity identical and be Little value, therefrom selects the OLT port of dormancy ONU minimum number as the OLT needing dormancy Port;
If there is hang under at least two OLT port to enliven ONU quantity identical and be Little value, identical with the dormancy ONU quantity hung at present and be minima, by OLT port Wavelength channel numbering therefrom select with the OLT port of dormancy, or therefrom can randomly choose Can be with the OLT port of dormancy.
4. method as claimed in claim 1 or 2, it is characterised in that described this business is born The ONU hung under the OLT port that lotus is minimum migrates to other OLT ports, controls this business The OLT port entrance park mode that load is minimum, including:
The ONU that enlivens hung under the OLT port minimum by this traffic load migrates to other OLT Port, if the OLT port of this traffic load minimum hangs with down dormancy ONU, by dormancy ONU Wake up up and migrate to other OLT ports, controlling the minimum OLT port of this traffic load and enter Park mode;
Or, the ONU that enlivens hung under the OLT port minimum by this traffic load migrates to it His OLT port, if the minimum OLT port of this traffic load hangs with down dormancy ONU, Opening timing device, wakes up up dormancy ONU and migrates to other OLT ports, if intervalometer After time-out, still there is ONU not respond or be not fully complete business migration work, control this business and bear The OLT port entrance park mode that lotus is minimum.
5. method as claimed in claim 1 or 2, it is characterised in that according to the cycle arranged Periodically judge whether to select OLT port to enter dormancy from OLT system.
6. method as claimed in claim 1 or 2, it is characterised in that also include: check Whether the energy-conservation park mode of OLT port of OLT system enables and opens, if opening, then carries out The Energy Saving Control of OLT port.
7. an energy-saving control device for OLT port, its feature in TWDM PON It is, including:
Dormancy judge module, for the total traffic load feelings according to optical line terminal OLT system Condition judges whether to select OLT port to enter dormancy from OLT system;
Port selects module, is used for when judging to select OLT port to enter dormancy, Add up the traffic load situation of each OLT port, select the OLT port that traffic load is minimum As the OLT port needing dormancy;
Dormancy processing module, the light net hung under the OLT port that this traffic load is minimum Network unit ONU migrates to other OLT ports, controls the OLT end that this traffic load is minimum Mouth enters park mode.
8. device as claimed in claim 7, it is characterised in that described dormancy judge module has Body is used for:
If in OLT system all quantity summations enlivening ONU and dormancy ONU less than or Equal to the maximum open ended ONU quantity of (N-1) × every OLT port, then can be from OLT System select OLT port enter dormancy, otherwise, it is impossible to select OLT from OLT system Port enters dormancy, and wherein, in OLT system, OLT port number is N.
9. device as claimed in claim 7 or 8, it is characterised in that described port selects mould Block specifically for:
Add up under each OLT port hang enliven ONU quantity and dormancy ONU quantity;
Select the lower OLT port enlivening ONU minimum number hung as the OLT needing dormancy Port;
If there is hang under at least two OLT port to enliven ONU quantity identical and be Little value, therefrom selects the OLT port of dormancy ONU minimum number as the OLT needing dormancy Port;
If there is hang under at least two OLT port to enliven ONU quantity identical and be Little value, identical with the dormancy ONU quantity hung at present and be minima, by OLT port Wavelength channel numbering therefrom select with the OLT port of dormancy, or therefrom can randomly choose Can be with the OLT port of dormancy.
10. device as claimed in claim 7 or 8, it is characterised in that described dormancy processes Module specifically for:
The ONU that enlivens hung under the OLT port minimum by this traffic load migrates to other OLT Port, if the OLT port of this traffic load minimum hangs with down dormancy ONU, by dormancy ONU Wake up up and migrate to other OLT ports, controlling the minimum OLT port of this traffic load and enter Park mode;
Or, the ONU that enlivens hung under the OLT port minimum by this traffic load migrates to it His OLT port, if the minimum OLT port of this traffic load hangs with down dormancy ONU, Opening timing device, wakes up up dormancy ONU and migrates to other OLT ports, if intervalometer After time-out, still there is ONU not respond or be not fully complete business migration work, control this business and bear The OLT port entrance park mode that lotus is minimum.
11. devices as claimed in claim 7 or 8, it is characterised in that dormancy judge module Specifically for periodically judging whether to select OLT from OLT system according to the cycle arranged Port enters dormancy.
12. devices as claimed in claim 7 or 8, it is characterised in that also include: enable Whether module, open for checking that the energy-conservation park mode of OLT port of OLT system enables, If opening, then carry out the Energy Saving Control of OLT port.
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