CN103563303A - Silencing method and device of optical network unit - Google Patents
Silencing method and device of optical network unit Download PDFInfo
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- CN103563303A CN103563303A CN201280003205.4A CN201280003205A CN103563303A CN 103563303 A CN103563303 A CN 103563303A CN 201280003205 A CN201280003205 A CN 201280003205A CN 103563303 A CN103563303 A CN 103563303A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
- H04B10/272—Star-type networks or tree-type networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
Abstract
The present invention provides a silencing method and device of an optical network unit, relates to the optical fiber communication field, and can reduce, even avoid the light-emitting conflict when a plurality of optical network units are on line simultaneously, and improve the utilization rate of an uplink bandwidth. The method comprises the steps of implanting a silencing identifications in the management maintenance information sent by an optical line terminal and issuing the silencing identifications to the optical network units, and then using the optical network units to analyze the silencing actions from the received management maintenance information, so that the optical network units can execute the silencing actions respectilvey according to the silencing mechanisms limited by the silencing identifications contained in the received management maintenance information. The silencing method and device of the optical network unit of the embodiment of the present invention is used to reduce the light-emitting conflict among the optical network units.
Description
Technical field
The present invention relates to fiber optic communication field, relate in particular to a kind of method and apparatus of mourning in silence of optical network unit.
Background technology
At present, a local GPON (Gigabit Passive Optical Network, 1000 M passive fiber optic network) be generally to be formed by OLT (Optical Line Terminal, optical line terminal), ONU (Optical Network Unit optical network unit)/ONT (Optical Network Termination optical line terminal), optical splitter and optical fiber.For not causing in the situation of ambiguity later, ONU and ONT hereinafter all with ONU, do not describe.
ONU is by PLOAM (Physical Layer Operations, Administration and Maintenance, physical layer control and management is safeguarded, refer in particular at GPON and XG-PON (10-Gigabit Passive Optical Network, 10G passive optical-fiber network) in system) agreement completes and activates and authentication registration on OLT, enter running status, this process is called the activation of ONU, and OLT has the right to not carrying out deexcitation (Deactive) operation by the ONU authenticating.GPON system realizes duplex communication by launch the light of two kinds of wavelength on an optical fiber, OLT to ONU transmit data channel we be called down going channel, ONU to OLT transmit data channel we be referred to as data feedback channel.
In order to reach the object that a plurality of ONU can multiplexing Optical Fiber Transmission data, OLT is divided into section continuous time channel by the time, for example, be 125us, and every section is called a frame.OLT notifies each ONU in uplink frame, to take different fluorescent lifetime sections by downlink frame and sends data, this time period length can be regarded upstream bandwidth as, the time-multiplexed way of this light path has individual prerequisite, be exactly that first OLT will identify these different ONU, could be for no ONU distributes nonoverlapping upstream bandwidth, this technology is called the discovery of ONU.
The common practices of industry is that OLT is regularly by BWmap (Bandwidth map at present, bandwidth mapping), distribute one section of blank time window, can be regarded as bandwidth, wherein BWmap refers in particular to XGTC (the XG-PON TransmissionConvergence of GPON/XG-PON system, XG-PON system transmission convergence sublayer) territory in frame, this territory has specified the up of different ONU to give out light the time period.All chartered ONU can be not luminous during this period of time, all do not have the ONU of registration during this period of time to select a random time point, for example select the time point of Microsecond grade luminous, the existence by specific PLOAM message to OLT issue oneself, completes the discovery of ONU.If ONU is luminous and other ONU conflict in this blank bandwidth, luminous transmission data again in the time of can only waiting for the blank bandwidth of OLT issue next time.
When simultaneously in a blank bandwidth, luminous ONU is too many, the random delay of Microsecond grade is not enough to ONU time period of giving out light to be distributed in nonoverlapping period, between ONU, luminous conflict meeting is very serious like this, particularly XG-PON technology is in order to improve software efficiency, start to support the PLOAM message such as Deactive, Disable of broadcast, these message can allow all ONU be absorbed in undiscovered state simultaneously, and luminous conflict scene can occur more frequently.
Angle from bandwidth, luminous conflict can cause the actual available bandwidth in blank bandwidth to reduce, consume effective upstream bandwidth, suppress conversely again the discovery of ONU, in serious situation, may cause vicious circle, cause ONU can not activate for a long time, or cause the ONU upstream bandwidth having activated to be squeezed and packet loss.Even if ONU is found in this case, after activation, enter running status, OLT can utilize OMCI (ONU Management and Control Interface ONU at once, management control interface information), ONU is carried out to business configuration and management maintenance, and this process generally can continue several seconds even tens seconds.If a plurality of ONU enter run mode with the period at short notice, can produce a large amount of configuration management message, the Message Processing resources at different levels of impact system, may cause interrupting overfrequency, queue overflow, the wicked problems such as timer blocks, and CPU occupation rate is high.
At present, in order to address the above problem, in a kind of prior art, OLT is by the ONU number of access in the each blank bandwidth of software limitations, when having 32 ONU luminous rush-register oneself simultaneously, OLT issued once up blank time every 5 seconds, 8 ONU of each access, other ONU directly carry out deexcitation (Deactive) after finding, after having spent like this 20 seconds, 32 ONU are found, enter administration configuration flow process, but, the risk that message floods while reaching the standard grade simultaneously although OLT has solved a large amount of ONU, but it has reduced blank bandwidth availability ratio on the one hand, undiscovered ONU is deactivated the ONU of (Deactive) with this on the other hand, in next time, in blank bandwidth, can form competition again, form the luminous conflict space of a new round.And ONU activate simultaneously quantity too many in when ，Ru community recovery after power cut, the service recovery time of inevitable a part of ONU can be because this conflict of reaching the standard grade be extended.
Summary of the invention
Embodiments of the invention provide a kind of method and apparatus of mourning in silence of optical network unit, the mechanism of mourning in silence that can allow optical network unit limit according to the sign of mourning in silence comprising in the management maintenance message of receiving is separately carried out the action of mourning in silence separately, reduce the luminous conflict while even having avoided a plurality of optical network units simultaneously to reach the standard grade, improved the utilance of upstream bandwidth.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, provides a kind of method of mourning in silence of optical network unit, and based on optical line terminal one side, described method comprises:
The sign of mourning in silence is set in management maintenance message, described in the sign of mourning in silence comprise that the mode of mourning in silence, chronomere and maximum delay count;
The management maintenance message of the sign of mourning in silence described in comprising is sent to the optical network unit in described fiber optic network, so that described optical network unit is after receiving described management maintenance message, according to the described mode of mourning in silence, chronomere and maximum delay of mourning in silence in sign, count to carry out the corresponding action of mourning in silence.
In the possible implementation of the first, in conjunction with first aspect, described in the mode of mourning in silence comprise and do not mourn in silence, mourn in silence at random, fixedly mourn in silence and association is mourned in silence;
Described mourning in silence at random chosen at random a duration as the silence period of described optical network unit for described optical network unit in the scope of maximum delay, and wherein said maximum delay counts to get according to described chronomere and described maximum delay;
Described fixedly mourning in silence as the silence period of described optical network unit using the time delay presetting as described optical network unit;
Described association is mourned in silence and according to the characterization factor of this optical network unit, is obtained the silence period of described optical network unit for described optical network unit.
In the possible implementation of the second, in conjunction with the first implementation of first aspect, described association is mourned in silence and is comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When described association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that described characterization factor is described optical network unit;
When described association is mourned in silence as sequence number interrelational form, the sequence number that described characterization factor is described optical network unit;
When described association is mourned in silence as optical network unit marks interrelational form, the sign of the described optical network unit that described characterization factor is described optical network unit.
Second aspect, provides a kind of method of mourning in silence of optical network unit, and based on optical network unit one side, described method comprises:
From optical line terminal, receive the management maintenance message comprise the sign of mourning in silence, described in the sign of mourning in silence comprise the mode of mourning in silence, chronomere and maximum delay counting;
Preserve in described management maintenance message described in the sign of mourning in silence, and waiting signal is lost event;
After described dropout event occurs, according to the sign of mourning in silence of preserving before described dropout event occurs, mourn in silence described in activation and identify the mechanism of mourning in silence of indicating;
Wait for described dropout event recovery, and according to the described mechanism of mourning in silence, carry out the corresponding action of mourning in silence after described dropout event is recovered.
In the possible implementation of the first, in conjunction with second aspect, described in the mode of mourning in silence comprise and do not mourn in silence, mourn in silence at random, fixedly mourn in silence and association is mourned in silence.
In the possible implementation of the second, in conjunction with the first implementation of second aspect, described association is mourned in silence and is comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When described association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that described characterization factor is described optical network unit;
When described association is mourned in silence as sequence number interrelational form, the sequence number that described characterization factor is described optical network unit;
When described association is mourned in silence as optical network unit marks interrelational form, the sign of the described optical network unit that described characterization factor is described optical network unit.
In the third possible implementation, in conjunction with second aspect or second aspect first to any one in the second implementation, if adopt the mode of mourning in silence at random, the mechanism of mourning in silence of the sign indication of mourning in silence described in activation comprises:
In the scope of described maximum delay, choose at random a duration as the silence period of described optical network unit, wherein said maximum delay obtains according to described chronomere and described maximum delay counting.
In the 4th kind of possible implementation, in conjunction with second aspect or second aspect first to any one in the third implementation, if adopt the mode of fixedly mourning in silence, the mechanism of mourning in silence that the sign of mourning in silence described in activation is indicated comprises:
Silence period using the time delay presetting as described optical network unit.
In the 5th kind of possible implementation, in conjunction with any one in first to fourth kind of implementation of second aspect or second aspect, if adopt the association mode of mourning in silence, the mechanism of mourning in silence of the sign indication of mourning in silence described in activation comprises:
According to the characterization factor of this optical network unit, obtain the silence period of described optical network unit.
In the 6th kind of possible implementation, in conjunction with the 5th kind of implementation of second aspect, the silence period that the described characterization factor according to this optical network unit obtains described optical network unit comprises:
Time delay when the described characterization factor necessity that is described optical network unit is luminous, the acquiescence time delay by the luminous time delay of described necessity divided by fiber optic network, then be multiplied by described maximum delay, obtain the silence period of described optical network unit; Or
When sequence number that described characterization factor is described optical network unit, from optical line terminal, receiving by optical line terminal is the silence period of described optical network unit configuration, and the described silence period is that described optical line terminal obtains described all optical network unit hash according to the sequence number of all optical network units in default duration; Or
When sign that described characterization factor is described optical network unit, the sign of described optical network unit, divided by optical network unit sum in fiber optic network, then is multiplied by described maximum delay, obtain the silence period of described optical network unit.
The third aspect, provides a kind of optical line terminal, and described smooth network terminal comprises:
The sign of mourning in silence setting unit, for the sign of mourning in silence is set in management maintenance message, described in the sign of mourning in silence comprise that the mode of mourning in silence, chronomere and maximum delay count;
Administrative messag issues unit, for the management maintenance message of the sign of mourning in silence described in comprising is sent to optical network unit, so that described optical network unit is after receiving described management maintenance message, according to the described mode of mourning in silence, chronomere and maximum delay of mourning in silence in sign, count to carry out the corresponding action of mourning in silence.
In the possible implementation of the first, in conjunction with the third aspect, described in the mode of mourning in silence comprise and do not mourn in silence, mourn in silence at random, fixedly mourn in silence and association is mourned in silence.
In the possible implementation of the second, in conjunction with the first possibility implementation of the third aspect, described association is mourned in silence and is comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When described association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that described characterization factor is described optical network unit;
When described association is mourned in silence as sequence number interrelational form, the sequence number that described characterization factor is described optical network unit;
When described association is mourned in silence as optical network unit marks interrelational form, the sign of the described optical network unit that described characterization factor is described optical network unit.
Fourth aspect, provides a kind of optical network unit, and described optical network unit comprises:
Administrative messag receiving element, for receive the management maintenance message comprise the sign of mourning in silence from optical line terminal, described in the sign of mourning in silence comprise the mode of mourning in silence, chronomere and maximum delay counting;
The sign of mourning in silence storage unit, for preserve described management maintenance message described in the sign of mourning in silence, and waiting signal is lost event;
The mechanism of mourning in silence activates unit, after occurring in described dropout event, according to the sign of mourning in silence of preserving before described dropout event occurs, mourns in silence described in activation and identifies the mechanism of mourning in silence of indicating;
The performance element of mourning in silence for waiting for that described dropout event recovers, and is carried out the corresponding action of mourning in silence according to the described mechanism of mourning in silence after described dropout event is recovered.
In the possible implementation of the first, in conjunction with fourth aspect, described in the mode of mourning in silence comprise and do not mourn in silence, mourn in silence at random, fixedly mourn in silence and association is mourned in silence.
In the possible implementation of the second, in conjunction with the possible implementation of the first of fourth aspect, described association is mourned in silence and is comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When described association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that described characterization factor is described optical network unit;
When described association is mourned in silence as sequence number interrelational form, the sequence number that described characterization factor is described optical network unit;
When described association is mourned in silence as optical network unit marks interrelational form, the sign of the described optical network unit that described characterization factor is described optical network unit.
In the third possible implementation, in conjunction with the first of fourth aspect or fourth aspect to any one in the possible implementation of the second, described in the mechanism of mourning in silence activate unit and comprise:
The subelement of mourning in silence at random, for choosing at random a duration as the silence period of described optical network unit in the scope of described maximum delay, wherein said maximum delay obtains according to described chronomere and described maximum delay counting.
In the 4th kind of possible implementation, in conjunction with the first of fourth aspect or fourth aspect to any one in the third possible implementation, described in the mechanism of mourning in silence activate unit and also comprise:
The subelement of fixedly mourning in silence, for the silence period using the time delay presetting as described optical network unit.
In the 5th kind of possible implementation, in conjunction with any one in four kinds of possible implementations of the first to the of fourth aspect or fourth aspect, described in the mechanism of mourning in silence activate unit and also comprise:
The association subelement of mourning in silence, for obtaining the silence period of described optical network unit according to the characterization factor of this optical network unit.
In the 6th kind of possible implementation, in conjunction with the 5th kind of possible implementation of fourth aspect, described association mourn in silence subelement specifically for:
Time delay when the described characterization factor necessity that is described optical network unit is luminous, the acquiescence time delay by the luminous time delay of described necessity divided by optical-fiber network, then be multiplied by described maximum delay, obtain the silence period of described optical network unit; Or
When sequence number that described characterization factor is described optical network unit, from optical line terminal, receiving by optical line terminal is the silence period of described optical network unit configuration, and the described silence period is that described optical line terminal obtains described all optical network unit hash according to the sequence number of all optical network units in default duration; Or
When sign that described characterization factor is described optical network unit, the sign of described optical network unit, divided by optical networks network element sum, then is multiplied by described maximum delay, obtain the silence period of described optical network unit.
The method and apparatus of mourning in silence of the optical network unit that embodiments of the invention provide, first by implanting to mourn in silence in the management maintenance message of sending at optical line terminal, identify and be handed down to optical network unit, then optical network unit is resolved the action of mourning in silence from the management maintenance message receiving, the mechanism of mourning in silence that can allow optical network unit limit according to the sign of mourning in silence comprising in the management maintenance message of receiving is separately carried out the action of mourning in silence separately, reduce the luminous conflict while even having avoided a plurality of optical network units simultaneously to reach the standard grade, improved upstream bandwidth utilance.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet one of the method for mourning in silence of a kind of optical network unit that Fig. 1 provides for the embodiment of the present invention;
The method flow schematic diagram two of mourning in silence of a kind of optical network unit that Fig. 2 provides for the embodiment of the present invention;
The method flow schematic diagram of mourning in silence of a kind of optical network unit that Fig. 3 provides for another embodiment of the present invention;
The form schematic diagram of a kind of management maintenance message that Fig. 4 provides for another embodiment of the present invention;
The structural representation one of a kind of optical line terminal that Fig. 5 provides for further embodiment of this invention;
The structural representation one of a kind of optical network unit that Fig. 6 provides for further embodiment of this invention;
The structural representation two of a kind of optical network unit that Fig. 7 provides for further embodiment of this invention;
The structural representation two of a kind of optical line terminal that Fig. 8 provides for further embodiment of this invention;
The structural representation three of a kind of optical network unit that Fig. 9 provides for further embodiment of this invention;
The structural representation of a kind of fiber optic network that Figure 10 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, it is that in XGPON system, the control and management maintain message PLOAM in transmission convergence layer is example that the management maintenance message of the fiber optic network in the embodiment of the present invention be take, but be not limited to this, also can be applied in GPON system, and also can be applied to the particular message of OMCI layer, or can also be applied to physical layer.
The embodiment of the present invention provides a kind of method of mourning in silence of optical network unit, and based on optical line terminal one side, as shown in Figure 1, described method comprises:
S101, optical line terminal arrange the sign of mourning in silence in the management maintenance message of fiber optic network, and the sign of mourning in silence comprises the mode of mourning in silence, chronomere and maximum delay counting.
Concrete, the mode of mourning in silence can be divided into does not mourn in silence, mourns in silence at random, fixedly mourns in silence and the association four kinds of modes of mourning in silence.
Wherein, the finger optical network unit of mourning in silence is at random chosen at random a duration as the silence period of optical network unit in the scope of maximum delay, and wherein maximum delay counts to get according to chronomere and maximum delay;
Fixedly mourn in silence and refer to the silence period of optical network unit using the time delay presetting as optical network unit;
Association is mourned in silence and is referred to that optical network unit obtains the silence period of optical network unit according to the characterization factor of this optical network unit.
And chronomere and maximum delay counting are for calculating the maximum delay of optical network unit.
S102, optical line terminal are sent to the optical network unit in fiber optic network by the management maintenance message that comprises the sign of mourning in silence, so that optical network unit is after receiving management maintenance message, according to the mode of mourning in silence, chronomere and the maximum delay of mourning in silence in sign, count to carry out the corresponding action of mourning in silence.
As shown in Figure 2, the method based on optical network unit one side comprises:
S201, optical network unit receive the management maintenance message that comprises the sign of mourning in silence from optical line terminal, the sign of mourning in silence comprises the mode of mourning in silence, chronomere and maximum delay counting.
S202, optical network unit are preserved the sign of mourning in silence in management maintenance message, and waiting signal is lost event.
S203, after dropout event occurs, optical network unit is according to the sign of mourning in silence of preserving before dropout event occurs, activating mourns in silence identifies the mechanism of mourning in silence of indicating.
S204, optical network unit waiting signal loss event are recovered, and according to the mechanism of mourning in silence, carry out the corresponding action of mourning in silence after dropout event is recovered.
The method of mourning in silence of the optical network unit that embodiments of the invention provide, first by implanting to mourn in silence in the management maintenance message of sending at optical line terminal, identify and be handed down to optical network unit, then optical network unit is resolved the action of mourning in silence from the management maintenance message receiving, the mechanism of mourning in silence that can allow optical network unit limit according to the sign of mourning in silence comprising in the management maintenance message of receiving is separately carried out the action of mourning in silence separately, reduce the luminous conflict while even having avoided a plurality of optical network units simultaneously to reach the standard grade, improved upstream bandwidth utilance.
Another embodiment of the present invention provides a kind of method of mourning in silence of optical network unit, and as shown in Figure 3, method comprises:
S301, optical line terminal are implanted the sign of mourning in silence in management maintenance message.
Wherein, this sign of mourning in silence includes the mode of mourning in silence, interrelational form, chronomere and maximum delay counting.
Exemplary, the PLOAM message of OLT broadcast can be Deactivate_ONU-ID message, Disable_Serial_Number message, and Sleep_Allow message or other message, wherein:
When OLT broadcast Deactivate_ONU-ID message, this message can make PON (Passive Optical Network, EPON) all ONU under interface enter reactivation flow process, under this scene, can implant the sign of mourning in silence at this message body afterbody, so that the ONU under PON mouth reduces the conflict of reaching the standard grade in reactivation flow process.
When OLT broadcast Disable_Serial_Number message, this message is supported ENABLE and two kinds of modes of DISABLE, if to all ONU broadcast ENABLE message, can allow all ONU under PON interface carry out activation manipulation simultaneously, can implant the sign of mourning in silence at this message body afterbody, so that all ONU reduce the conflict of reaching the standard grade in activation process.
When OLT broadcast Sleep_Allow message, this message will allow ONU to enter the resting state of low-power consumption, to save the energy, can implant the sign of mourning in silence at the afterbody of this message, so that ONU can automatically wake up after dormancy finishes.
Corresponding different scenes, OLT also can broadcast other management maintenance message, therefore, can in the management maintenance message of these broadcast, implant the corresponding sign of mourning in silence.
Under a kind of implementation, the structure of general PLOAM of take is example, as shown in Figure 4, is the structural representation of PLOAM, and this sign of mourning in silence can be set between message content and message ending.The sign of mourning in silence can be the message of a 24bit, wherein:
Can be in the high 2 bit settings mode of mourning in silence of sign of mourning in silence, these four kinds of modes that this mode of mourning in silence includes and do not mourn in silence, mourns in silence at random, fixedly mourns in silence and association is mourned in silence, wherein, the mode of not mourning in silence can represent with 00, be to be used to refer to ONU to take the action of not mourning in silence, be applicable at ONU seldom and luminous conflict space is minimum in the situation that;
The mode that fixedly duration is mourned in silence can represent with 01, to be used to refer to ONU to mourn in silence according to the set time length pre-setting, be used in some particular service and safeguard scene, for example need certain ONU to carry out a software test in hour, can first allow this ONU roll off the production line one hour, keep mourning in silence under the line of a hour;
The mode of mourning in silence at random can represent with 10, to be used to refer to that ONU is random within the scope of the maximum delay of appointment chooses a time period as the silence period, be applicable in finding that the ONU of state is not very many scenes, general pseudo-random algorithm can hash to the on-line time point of ONU in the scope of maximum delay by hash algorithm, makes conflict enough little;
The mode that association is mourned in silence can represent with 11, to be used to refer to ONU to take self certain characterization factor be silence period that operator calculates ONU self, to activationary time point was separately distributed in the different time periods, allow the ONU activation of sequentially queuing up, reach the effect of eliminating the conflict of reaching the standard grade, be applicable in the scene of ONU One's name is legion.
Concrete interrelational form is being recorded in 2 bit the insides after the mode of mourning in silence, be respectively EQD (Equalized Delay, isostatic lag) interrelational form, SN (sequence number) interrelational form, ONU ID (each ONU No. ID) interrelational form is these three kinds, can with 00,01,10, represent respectively, last a kind of mode is reserved field, expansion for interrelational form, represents with 11.
Maximum delay counting can be set at low 9 bits of the sign of mourning in silence, front 3 bit setup times units at maximum delay counting, respectively can for 125 delicate, 10 milliseconds, 1 second, 5 minutes, with 000,001,010,011, represent respectively, also have remaining other 8 chronomeres that memory space is used for depositing other, for the expansion of chronomere;
The maximum delay of mourning in silence is just obtained by the product of maximum delay counting and chronomere, for example maximum delay is counted as 80, chronomere is 10ms, the maximum time delay of mourning in silence should be 80*10ms=800ms, this method can be expressed broader time-domain with limited bit, can adapt to again different timing customs simultaneously.It should be noted that, the duration of chronomere is not limited to above-mentioned four kinds, specifically can be according to actual conditions setting.
S302, optical line terminal have been implanted the management maintenance message of the sign of mourning in silence to optical network unit broadcast.
S303, optical network unit are preserved the sign of mourning in silence in management maintenance message, and waiting signal is lost event (LOS event).
This dropout event refers to and disconnects suddenly as optical fiber, or the dropout event that causes of the accident such as the unexpected power down in community.
S304, after dropout event occurs, optical network unit is according to the sign of mourning in silence of preserving before dropout event occurs, activating mourns in silence identifies the mechanism of mourning in silence of indicating.
After dropout event occurs, the anti-shake timer of optical network unit starting login state also activates the corresponding mechanism of mourning in silence in overtime function, in order to activate the mechanism of mourning in silence, the mode of mourning in silence of this sign indication of mourning in silence of spectroscopic analysis of mourning in silence that optical network unit is preserved before occurring according to dropout event is concrete:
If mourn in silence at random mode, according to chronomere and the maximum delay of mourning in silence in sign, calculate maximum delay, then in the scope of maximum delay, choose at random a duration as the silence period of optical network unit.
If fixedly mourn in silence mode, the silence period using the time delay presetting as this optical network unit.
The mode if association is mourned in silence, needing to determine is that interrelational form, chooses different characterization factors calculate the silence period of this optical network unit as operator according to different interrelational forms.
Exemplary, under the interrelational form of EQD, ONU is usingd oneself EQD as operator, calculates the silence period separately.Silence period is that EQD is multiplied by the resulting duration of maximum delay again divided by system default time delay.
For example, at all chartered ONU, receive in the scene of broadcast deexcitation message, each ONU takes from oneself EQD as operator, from 125us (system default time delay), expand in proportion the scope of maximum delay to, suppose that maximum delay is 135s, the EQD of ONU1 is 52us, the silence period of ONU1 should be (52/125) * 135s=56.16s, be ONU1 after deexcitation, keep 56.16s not luminous, and then enter activation process.
Under the interrelational form of SN, OLT be take SN and is each ONU configuration silence period as operator, and then from OLT, to receive by OLT be the silence period of optical network unit configuration to ONU.For example, ONU equipment be for No. SN 0xHHHHHHHH (H for arbitrarily 16 system numbers), due in accordance with international practices, 8 of each ONU can not be repeated for No. SN, therefore OLT hashes to (this time is stipulated depending on the quantity of ONU configuration by OLT equipment, is not limited to 90 seconds) in 90 seconds by 0xHHHHHHHH by certain hash algorithm, in these 90 seconds, each ONU, according to sequentially reaching the standard grade for No. SN separately, can reduce the conflict of reaching the standard grade of numerous ONU.
Under the interrelational form of ONU ID, ONU is usingd ONU ID as operator, calculates the silence period separately.Silence period is that ONU ID is multiplied by the resulting duration of maximum delay again divided by ONU sum.
100 ONU (ONU ID is 0～99) for example, under the OLT that is applied the super processor of 16 core, have been accessed, suppose that this OLT can complete the business configuration of 10 ONU in 1 second, if desired OLT completes the configuration of all ONU in 10s, OLT can 10 milliseconds is chronomere (tick), and maximum delay is counted as 10s/10ms=1000.When the ONU that ONU ID is 33 receives such configuration, calculating the silence period is 33/100*1000 tick=3.3s, in the time of 3.3 seconds, starts to start register flow path.All ONU be take 0.1 second as interval, and one connects the startup registration of queuing up, until after 10 seconds, all reached the standard grade.
S305, after dropout event is recovered, carry out and activated the action of mourning in silence corresponding to the mechanism of mourning in silence.
For example, when community's power down or supervisor's optical fiber break suddenly in the situation of a period of time, when if optical fiber link reconnects, ONU carries out and has activated the action of mourning in silence corresponding to the mechanism of mourning in silence, according to the determined silence period of S304, carry out the action of mourning in silence, make like this each OUN carry out according to the specified mechanism of mourning in silence the action of mourning in silence, can make each ONU start successively registration according to order, reduced the conflict of reaching the standard grade of a large amount of ONU, even can reach the effect of conflict removal, so just solved the message that the causes problem that floods of reaching the standard grade due to a large amount of ONU, alleviated the processing pressure of OLT, in addition owing to can reducing even conflict removal, saved the up effective bandwidth of optical network system, thereby improved the upstream bandwidth utilance of optical network system, and, because can also playing, this programme prevents that OUN is repeatedly in self-discovery state, also played to a certain extent energy-conservation effect.
The method of mourning in silence of the optical network unit that embodiments of the invention provide, first by implanting to mourn in silence in the management maintenance message of sending at optical line terminal, identify and be handed down to optical network unit, then optical network unit is resolved the action of mourning in silence from the management maintenance message receiving, the mechanism of mourning in silence that can allow optical network unit limit according to the sign of mourning in silence comprising in the management maintenance message of receiving is separately carried out the action of mourning in silence separately, reduce the luminous conflict while even having avoided a plurality of optical network units simultaneously to reach the standard grade, improved upstream bandwidth utilance.
Another embodiment of the present invention provides a kind of optical line terminal 01, and as shown in Figure 5, optical line terminal 01 comprises:
The sign of mourning in silence setting unit 011, for the sign of mourning in silence the setting of the management maintenance message of fiber optic network, the sign of mourning in silence comprises the mode of mourning in silence, chronomere and maximum delay counting, and the management maintenance message that comprises the sign of mourning in silence is sent to administrative messag issues unit 012;
Administrative messag issues unit 012, for receiving from the sign setting unit 011 of mourning in silence the management maintenance message that comprises the sign of mourning in silence, and the management maintenance message that comprises the sign of mourning in silence is sent to the optical network unit in fiber optic network, so that optical network unit is after receiving management maintenance message, according to the mode of mourning in silence, chronomere and the maximum delay of mourning in silence in sign, count to carry out the corresponding action of mourning in silence.
Further, the mode of mourning in silence comprises and does not mourn in silence, mourns in silence at random, fixedly mourns in silence and association is mourned in silence.
Wherein, mourn in silence at random and in the scope of maximum delay, choose at random a duration as the silence period of optical network unit for optical network unit, wherein maximum delay counts to get according to chronomere and maximum delay;
Fixedly mourn in silence as the silence period of optical network unit using the time delay presetting as optical network unit;
Association is mourned in silence and according to the characterization factor of this optical network unit, is obtained the silence period of optical network unit for optical network unit.
Wherein, association is mourned in silence and is comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that characterization factor is optical network unit;
When association is mourned in silence as sequence number interrelational form, the sequence number that characterization factor is optical network unit;
When association is mourned in silence as optical network unit marks interrelational form, the sign of the optical network unit that characterization factor is optical network unit.
Embodiments of the invention provide a kind of optical line terminal, first by implanting to mourn in silence in the management maintenance message of sending at optical line terminal, identify and be handed down to optical network unit, then optical network unit is resolved the action of mourning in silence from the management maintenance message receiving, the mechanism of mourning in silence that can allow optical network unit limit according to the sign of mourning in silence comprising in the management maintenance message of receiving is separately carried out the action of mourning in silence separately, reduce the luminous conflict while even having avoided a plurality of optical network units simultaneously to reach the standard grade, improved upstream bandwidth utilance.
Another embodiment of the present invention provides a kind of optical network unit 02, and as shown in Figure 6, optical network unit 02 comprises:
Administrative messag receiving element 021, for receive the management maintenance message that comprises the sign of mourning in silence from optical line terminal, the sign of mourning in silence comprises the mode of mourning in silence, chronomere and maximum delay counting, and the sign of mourning in silence is sent to the sign storage unit 022 of mourning in silence;
The sign of mourning in silence storage unit 022, for receiving from administrative messag receiving element 021 sign of mourning in silence, and preserve the sign of mourning in silence in management maintenance message, and waiting signal is lost event;
The mechanism of mourning in silence activates unit 023, after occurring in dropout event, from the sign of mourning in silence, preserve Unit 022 and read in the sign of mourning in silence of preserving dropout event occurs, and according to the sign of mourning in silence of preserving before dropout event occurs, activation is mourned in silence and is identified the mechanism of mourning in silence of indication, and the mechanism of mourning in silence activating is sent to the performance element 024 of mourning in silence;
The performance element 024 of mourning in silence, receives for activate unit 023 from the mechanism of mourning in silence the mechanism of mourning in silence activating, and waiting signal loss event recovers, and according to the mechanism of mourning in silence, carries out the corresponding action of mourning in silence after dropout event is recovered.
Further, the mode of mourning in silence comprises and does not mourn in silence, mourns in silence at random, fixedly mourns in silence and association is mourned in silence.
Mourn in silence at random and in the scope of maximum delay, choose at random a duration as the silence period of optical network unit for optical network unit, wherein maximum delay counts to get according to chronomere and maximum delay;
Fixedly mourn in silence as the silence period of optical network unit using the time delay presetting as optical network unit;
Association is mourned in silence and according to the characterization factor of this optical network unit, is obtained the silence period of optical network unit for optical network unit.
Wherein, association is mourned in silence and is comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that characterization factor is optical network unit;
When association is mourned in silence as sequence number interrelational form, the sequence number that characterization factor is optical network unit;
When association is mourned in silence as optical network unit marks interrelational form, the sign of the optical network unit that characterization factor is optical network unit.
Further, as shown in Figure 7, the mechanism of mourning in silence activates unit 023 and can comprise:
The subelement 0231 of mourning in silence at random, for choosing at random a duration as the silence period of optical network unit in the scope of maximum delay, wherein maximum delay obtains according to chronomere and maximum delay counting.
The subelement 0232 of fixedly mourning in silence, for the silence period using the time delay presetting as optical network unit;
The association subelement 0233 of mourning in silence, for obtaining the silence period of optical network unit according to the characterization factor of this optical network unit.
Further, association mourn in silence subelement 0233 can be specifically for:
Time delay when the characterization factor necessity that is optical network unit is luminous, the acquiescence time delay by the luminous time delay of necessity divided by optical-fiber network, then be multiplied by maximum delay, obtain the silence period of optical network unit; Or
When sequence number that characterization factor is optical network unit, from optical line terminal, receiving by optical line terminal is the silence period of optical network unit configuration, and the silence period is that optical line terminal obtains all optical network unit hash according to the sequence number of all optical network units in default duration; Or
When sign that characterization factor is optical network unit, the sign of optical network unit, divided by optical networks network element sum, then is multiplied by maximum delay, obtain the silence period of optical network unit.
Embodiments of the invention provide a kind of optical network unit, first by implanting to mourn in silence in the management maintenance message of sending at optical line terminal, identify and be handed down to optical network unit, then optical network unit is resolved the action of mourning in silence from the management maintenance message receiving, the mechanism of mourning in silence that can allow optical network unit limit according to the sign of mourning in silence comprising in the management maintenance message of receiving is separately carried out the action of mourning in silence separately, reduce the luminous conflict while even having avoided a plurality of optical network units simultaneously to reach the standard grade, improved upstream bandwidth utilance.
Further embodiment of this invention provides a kind of optical line terminal 03, comprises receiver 031, memory 032, bus 033, and as shown in Figure 8, optical line terminal 03 also comprises:
Wherein, the mode of mourning in silence comprises does not mourn in silence, mourns in silence at random, fixedly mourns in silence and association is mourned in silence, wherein:
Mourn in silence at random and in the scope of maximum delay, choose at random a duration as the silence period of optical network unit for optical network unit, wherein maximum delay counts to get according to chronomere and maximum delay;
Fixedly mourn in silence as the silence period of optical network unit using the time delay presetting as optical network unit;
Association is mourned in silence and according to the characterization factor of this optical network unit, is obtained the silence period of optical network unit for optical network unit.
Wherein, association is mourned in silence and is comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that characterization factor is optical network unit;
When association is mourned in silence as sequence number interrelational form, the sequence number that characterization factor is optical network unit;
When association is mourned in silence as optical network unit marks interrelational form, the sign of the optical network unit that characterization factor is optical network unit.
Embodiments of the invention provide a kind of optical line terminal, by implanting to mourn in silence in the management maintenance message of sending at optical line terminal, identify and be handed down to optical network unit, then optical network unit is resolved the action of mourning in silence from the management maintenance message receiving, the mechanism of mourning in silence that can allow optical network unit limit according to the sign of mourning in silence comprising in the management maintenance message of receiving is separately carried out the action of mourning in silence separately, reduce the luminous conflict while even having avoided a plurality of optical network units simultaneously to reach the standard grade, improved upstream bandwidth utilance.
Further embodiment of this invention provides a kind of optical network unit 04, comprises transmitter 041, bus 042, and as shown in Figure 9, optical line terminal 04 also comprises:
Wherein, the mode of mourning in silence comprises and does not mourn in silence, mourns in silence at random, fixedly mourns in silence and association is mourned in silence.
Mourn in silence at random and in the scope of maximum delay, choose at random a duration as the silence period of optical network unit for optical network unit, wherein maximum delay counts to get according to chronomere and maximum delay;
Fixedly mourn in silence as the silence period of optical network unit using the time delay presetting as optical network unit;
Association is mourned in silence and according to the characterization factor of this optical network unit, is obtained the silence period of optical network unit for optical network unit.
Wherein, association is mourned in silence and is comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form, and:
When association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that characterization factor is optical network unit;
When association is mourned in silence as sequence number interrelational form, the sequence number that characterization factor is optical network unit;
When association is mourned in silence as optical network unit marks interrelational form, the sign of the optical network unit that characterization factor is optical network unit.
Further, the mode of mourning in silence at random if adopt, processor 045 can be specifically for:
In the scope of maximum delay, choose at random a duration as the silence period of optical network unit, wherein maximum delay obtains according to chronomere and maximum delay counting.
The mode of fixedly mourning in silence if adopt, processor 045 can be specifically for:
Silence period using the time delay presetting as optical network unit.
If adopt the association mode of mourning in silence, processor 045 can be specifically for:
Time delay when the characterization factor necessity that is optical network unit is luminous, the acquiescence time delay by the luminous time delay of necessity divided by fiber optic network, then be multiplied by maximum delay, obtain the silence period of optical network unit; Or
When sequence number that characterization factor is optical network unit, from optical line terminal, receiving by optical line terminal is the silence period of optical network unit configuration, and the silence period is that optical line terminal obtains all optical network unit hash according to the sequence number of all optical network units in default duration; Or
When sign that characterization factor is optical network unit, the sign of optical network unit, divided by optical network unit sum in fiber optic network, then is multiplied by maximum delay, obtain the silence period of optical network unit.
Embodiments of the invention provide a kind of optical network unit, first by implanting to mourn in silence in the management maintenance message of sending at optical line terminal, identify and be handed down to optical network unit, then optical network unit is resolved the action of mourning in silence from the management maintenance message receiving, the mechanism of mourning in silence that can allow optical network unit limit according to the sign of mourning in silence comprising in the management maintenance message of receiving is separately carried out the action of mourning in silence separately, reduce the luminous conflict while even having avoided a plurality of optical network units simultaneously to reach the standard grade, improved upstream bandwidth utilance.
Another embodiment of the present invention provides a kind of fiber optic network 1, and this fiber optic network 1 comprises:
Embodiments of the invention provide a kind of fiber optic network, first by implanting to mourn in silence in the management maintenance message of sending at optical line terminal, identify and be handed down to optical network unit, then optical network unit is resolved the action of mourning in silence from the management maintenance message receiving, the mechanism of mourning in silence that can allow optical network unit limit according to the sign of mourning in silence comprising in the management maintenance message of receiving is separately carried out the action of mourning in silence separately, reduce the luminous conflict while even having avoided a plurality of optical network units simultaneously to reach the standard grade, improved upstream bandwidth utilance.
In the several embodiment that provide in the application, should be understood that, disclosed method, device and system can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit comprises, also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that also can adopt hardware to add SFU software functional unit realizes.
The integrated unit that the above-mentioned form with SFU software functional unit realizes, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, be called for short ROM), the various media that can be program code stored such as random access memory (Random Access Memory is called for short RAM), magnetic disc or CD.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (21)
1. the method for mourning in silence of optical network unit, is characterized in that, comprising:
The sign of mourning in silence is set in management maintenance message, described in the sign of mourning in silence comprise that the mode of mourning in silence, chronomere and maximum delay count;
The management maintenance message of the sign of mourning in silence described in comprising is sent to optical network unit, so that described optical network unit is after receiving described management maintenance message, according to the described mode of mourning in silence, chronomere and maximum delay of mourning in silence in sign, count to carry out the corresponding action of mourning in silence.
2. method according to claim 1, is characterized in that, described in the mode of mourning in silence comprise and do not mourn in silence, mourn in silence at random, fixedly mourn in silence and association is mourned in silence;
Described mourning in silence at random chosen at random a duration as the silence period of described optical network unit for described optical network unit in the scope of maximum delay, and wherein said maximum delay counts to get according to described chronomere and described maximum delay;
Described fixedly mourning in silence as the silence period of described optical network unit using the time delay presetting as described optical network unit;
Described association is mourned in silence and according to the characterization factor of this optical network unit, is obtained the silence period of described optical network unit for described optical network unit.
3. method according to claim 2, is characterized in that, described association is mourned in silence and comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When described association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that described characterization factor is described optical network unit;
When described association is mourned in silence as sequence number interrelational form, the sequence number that described characterization factor is described optical network unit;
When described association is mourned in silence as optical network unit marks interrelational form, the sign of the described optical network unit that described characterization factor is described optical network unit.
4. the method for mourning in silence of optical network unit, is characterized in that, comprising:
From optical line terminal, receive the management maintenance message comprise the sign of mourning in silence, described in the sign of mourning in silence comprise the mode of mourning in silence, chronomere and maximum delay counting;
Preserve in described management maintenance message described in the sign of mourning in silence, and waiting signal is lost event;
After described dropout event occurs, according to the sign of mourning in silence of preserving before described dropout event occurs, mourn in silence described in activation and identify the mechanism of mourning in silence of indicating;
Wait for described dropout event recovery, and according to the described mechanism of mourning in silence, carry out the corresponding action of mourning in silence after described dropout event is recovered.
5. method according to claim 4, is characterized in that, described in the mode of mourning in silence comprise and do not mourn in silence, mourn in silence at random, fixedly mourn in silence and association is mourned in silence.
6. method according to claim 5, is characterized in that, described association is mourned in silence and comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When described association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that described characterization factor is described optical network unit;
When described association is mourned in silence as sequence number interrelational form, the sequence number that described characterization factor is described optical network unit;
When described association is mourned in silence as optical network unit marks interrelational form, the sign of the described optical network unit that described characterization factor is described optical network unit.
7. according to the method described in claim 4 to 6 any one, it is characterized in that, the mode of mourning in silence at random if adopt, the mechanism of mourning in silence of the sign indication of mourning in silence described in activation comprises:
In the scope of described maximum delay, choose at random a duration as the silence period of described optical network unit, wherein said maximum delay obtains according to described chronomere and described maximum delay counting.
8. according to the method described in claim 4 to 6 any one, if adopt the mode of fixedly mourning in silence, the mechanism of mourning in silence that the sign of mourning in silence described in activation is indicated comprises:
Silence period using the time delay presetting as described optical network unit.
9. according to the method described in claim 4 to 6 any one, if adopt the association mode of mourning in silence, the mechanism of mourning in silence of the sign indication of mourning in silence described in activation comprises:
According to the characterization factor of this optical network unit, obtain the silence period of described optical network unit.
10. method according to claim 9, is characterized in that, the silence period that the described characterization factor according to this optical network unit obtains described optical network unit comprises:
Time delay when the described characterization factor necessity that is described optical network unit is luminous, the acquiescence time delay by the luminous time delay of described necessity divided by fiber optic network, then be multiplied by described maximum delay, obtain the silence period of described optical network unit; Or
When sequence number that described characterization factor is described optical network unit, from optical line terminal, receiving by optical line terminal is the silence period of described optical network unit configuration, and the described silence period is that described optical line terminal obtains described all optical network unit hash according to the sequence number of all optical network units in default duration; Or
When sign that described characterization factor is described optical network unit, the sign of described optical network unit, divided by optical network unit sum in fiber optic network, then is multiplied by described maximum delay, obtain the silence period of described optical network unit.
11. 1 kinds of optical line terminals, is characterized in that, comprising:
The sign of mourning in silence setting unit, for the sign of mourning in silence is set in management maintenance message, described in the sign of mourning in silence comprise that the mode of mourning in silence, chronomere and maximum delay count;
Administrative messag issues unit, for the management maintenance message of the sign of mourning in silence described in comprising is sent to optical network unit, so that described optical network unit is after receiving described management maintenance message, according to the described mode of mourning in silence, chronomere and maximum delay of mourning in silence in sign, count to carry out the corresponding action of mourning in silence.
12. according to optical line terminal described in claim 11, it is characterized in that, described in the mode of mourning in silence comprise and do not mourn in silence, mourn in silence at random, fixedly mourn in silence and association is mourned in silence.
13. methods according to claim 12, is characterized in that, described association is mourned in silence and comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When described association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that described characterization factor is described optical network unit;
When described association is mourned in silence as sequence number interrelational form, the sequence number that described characterization factor is described optical network unit;
When described association is mourned in silence as optical network unit marks interrelational form, the sign of the described optical network unit that described characterization factor is described optical network unit.
14. 1 kinds of optical network units, is characterized in that, described optical network unit comprises:
Administrative messag receiving element, for receive the management maintenance message comprise the sign of mourning in silence from optical line terminal, described in the sign of mourning in silence comprise the mode of mourning in silence, chronomere and maximum delay counting, and will described in the sign of mourning in silence be sent to the sign storage unit of mourning in silence;
The sign of mourning in silence storage unit, for the sign of mourning in silence described in receiving from described administrative messag receiving element, and preserve in described management maintenance message described in mourn in silence sign waiting signal loss event;
The mechanism of mourning in silence activates unit, after occurring in described dropout event, from the sign storage unit of mourning in silence, read in the sign of mourning in silence of preserving described dropout event occurs, and according to the sign of mourning in silence of preserving before described dropout event occurs, mourn in silence described in activation and identify the mechanism of mourning in silence of indicating;
The performance element of mourning in silence for waiting for that described dropout event recovers, is carried out the corresponding action of mourning in silence according to the described mechanism of mourning in silence after described dropout event is recovered.
15. optical network units according to claim 14, is characterized in that, described in the mode of mourning in silence comprise and do not mourn in silence, mourn in silence at random, fixedly mourn in silence and association is mourned in silence.
16. optical network units according to claim 15, is characterized in that, described association is mourned in silence and comprised isostatic lag interrelational form, sequence number interrelational form, optical network unit marks interrelational form;
When described association is mourned in silence as isostatic lag interrelational form, the luminous time delay of necessity that described characterization factor is described optical network unit;
When described association is mourned in silence as sequence number interrelational form, the sequence number that described characterization factor is described optical network unit;
When described association is mourned in silence as optical network unit marks interrelational form, the sign of the described optical network unit that described characterization factor is described optical network unit.
17. according to claim 14 to the optical network unit described in 16, it is characterized in that, described in the mechanism of mourning in silence activate unit and comprise:
The subelement of mourning in silence at random, for choosing at random a duration as the silence period of described optical network unit in the scope of described maximum delay, wherein said maximum delay obtains according to described chronomere and described maximum delay counting.
18. according to claim 14 to the optical network unit described in 17, it is characterized in that, described in the mechanism of mourning in silence activate unit and also comprise:
The subelement of fixedly mourning in silence, for the silence period using the time delay presetting as described optical network unit.
19. according to claim 14 to the optical network unit described in 18, it is characterized in that, described in the mechanism of mourning in silence activate unit and also comprise:
The association subelement of mourning in silence, for obtaining the silence period of described optical network unit according to the characterization factor of this optical network unit.
20. according to power in require the optical network unit described in 19, it is characterized in that, association mourn in silence subelement specifically for:
Time delay when the described characterization factor necessity that is described optical network unit is luminous, the acquiescence time delay by the luminous time delay of described necessity divided by optical-fiber network, then be multiplied by described maximum delay, obtain the silence period of described optical network unit; Or
When sequence number that described characterization factor is described optical network unit, from optical line terminal, receiving by optical line terminal is the silence period of described optical network unit configuration, and the described silence period is that described optical line terminal obtains described all optical network unit hash according to the sequence number of all optical network units in default duration; Or
When sign that described characterization factor is described optical network unit, the sign of described optical network unit, divided by optical networks network element sum, then is multiplied by described maximum delay, obtain the silence period of described optical network unit.
21. 1 kinds of fiber optic networks, is characterized in that, described fiber optic network comprises optical line terminal and optical network unit, and described optical line terminal is connected to described optical network unit by Optical Distribution Network, and wherein, described optical network unit is:
Optical network unit as described in any one in claim 14 to 20.
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| PCT/CN2012/084975 WO2014078999A1 (en) | 2012-11-21 | 2012-11-21 | Silent method and device for optical network unit |
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| CN103563303B CN103563303B (en) | 2017-04-26 |
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