CN1996879B - A method and system for obtaining the capability set of the remote unit of the digital user line - Google Patents
A method and system for obtaining the capability set of the remote unit of the digital user line Download PDFInfo
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- CN1996879B CN1996879B CN2006101236568A CN200610123656A CN1996879B CN 1996879 B CN1996879 B CN 1996879B CN 2006101236568 A CN2006101236568 A CN 2006101236568A CN 200610123656 A CN200610123656 A CN 200610123656A CN 1996879 B CN1996879 B CN 1996879B
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Abstract
The invention discloses a method to get digital user line remote end unit capability set so as to realize the collection of the digital user line remote end unit capability set, which comprises the following steps: A, the digital user line local end unit starts capability collection procedure, the said capability collection procedure adopts an automatic collection manners; B, the digital user line local end unit collects the capability set information of the digital user line remote end unit, and stores the capability set of the capability set information in the management information database. This invention also discloses a system to get the digital user line remote end unit capability set. According to the method and apparatus of the embodiment of the invention, the capability set information of the digital user line remote end unit can be obtained, and the configuration of the line module can be carried out in more effective manner for the users.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of method and system of obtaining Digital Subscriber Line far-end unit capability set.
Background technology
XDSL (x Digital Subscriber Line) is a kind of high speed data transfer technology in the twisted pair telephone transmission, Digital Subscriber Line (DigitalSubscriber Line except SHDSL baseband transmission such as (single) to high-speed digital subscriber line, DSL) outside, the xDSL of passband transmission utilizes frequency multiplexing technique to make xDSL and Plain Old Telephone Service (Plain Old Telephone Service, POTS) co-exist on a pair of twisted-pair feeder, wherein xDSL occupies high band, POTS takies the following baseband portion of 25KHz, and the POTS signal separates by separator with the xDSL signal.The system that provides multichannel xDSL to insert is called the DSL couple in multiplexer, and (DSL Access Multiplexer, DSLAM), its system reference model sees also accompanying drawing 1.In the system as shown in FIG., comprise DSL couple in multiplexer, network management system (Network ManagmentSystem, NMS), public switched telephone network, xDSL terminal equipment (Modem), telephone set, computer, wherein the DSL multiplexer also comprises xDSL local side unit, separator and management information bank (Management Information Base, MIB), the xDSL terminal equipment also comprises the xDSL far-end unit.
XDSL technical development in recent years is rapid, from ADSL (Asymmetric Digital Subscriber Line) (Asymmetrical DigitalSubscriber Line, ADSL) (extend down streambandwidth ADSL2, quinquenniad has only been used in rise ADSL2+) to the ADSL2 that uses the downstream broadband expansion.And xDSL far-end unit (the Remote xDSL Terminal Unit of the far-end of online existing ADSL and ADSL2+, xTU-R) equipment also will continue to use, in order to realize the coexistence of multimodal xDSL equipment, new local side apparatus need be supported multiple xDSL pattern simultaneously.Yet because ADSL/ADSL2+ and second generation Very-high-speed Digital Subscriber Line (Very-high-bit-rate Digital Subscriber Line2, VDSL2) etc. xDSL technological disparity is bigger, very big difference is not only arranged aspect speed, descending maximum rate as ADSL is 8M, the descending maximum rate of ADSL2+ is 24M, VDSL symmetry achievable rate is near 100M, the difference that has also comprised some characteristics, as power spectral density (Power Spectrum Density, PSD) shapings (Shaping) etc., the difference of these characteristics make and all comprise different ability parameters in the various xDSL standards.When the preparation circuit, need prepare at the different ability parameter of different enable modes, performance just can reach best like this.
Activation is in initialization procedure, xDSL far-end unit (Central Office xDSL TerminalUnit, xTU-C) and xTU-R measures and analyze channel conditions, the xDSL transceiver comprises xTU-C and xTU-R, set up parameters needed mutually according to certain rule, finally realize connecting according to negotiation result.The xDSL initialization procedure is also referred to as activation, is that example describes below with ASDL2+.
At first see also Fig. 2, in the activation of ASDL2/2+, be divided into five stages, the xDSL transceiver need pass through the circuit initialization procedure from starting to operate as normal, this process at first is shake hands (Handshake), all can follow Handshake Protocol G994.1 standard at this stage G992.x and G993.x series, therefore xDSL transceiver both sides are according to the mode of G994.1 regulation, the mutual ability of oneself supporting, consult mutually then, and select corresponding activated protocol pattern (G992.1/G992.3/G992.5/G993.2 etc.).Then according to the enable mode of selecting, xDSL transceiver both sides enter the channel of corresponding protocol regulation again and find (Channel Discovery), training (Transceiver Training), Multiple Channel Analysis (ChannelAnalysis) and exchange stages such as (Exchange), be referred to as initialization procedure or activation before this, finally enter normal operating conditions (Show Time).Exchange the other side is handshake phase in the most concentrated stage of ability parameter in activation, MODEM (xDSL terminal equipment) for ADSL2/2+, handshake phase is followed the G994.1 standard, by xDSL local side unit transmitting capacity parameter message (CL message), notice xDSL far-end unit self-ability and requirement, xTU-C also can transmitting capacity collection message (CLR message), realizes identical functions.In handshake phase, generally send CLR message earlier by xTU-R, (Central Office, CO) end sends CL message by the central office again.For another the T1.413 agreement that satisfies Digital Subscriber Line, itself and ADSL standard are similar to, its main ability parameter is not mutual in the CLR mode in handshake phase, but all has in whole activation alternately, and each stage and the ADSL of activation experience also are similar to.
At present, can not know the capabilities message of ustomer premises access equipment during local side DSLAM equipment disposition line profile, circuit masterplate the inside is the combination of some allocative abilities collection parameters.When local side issues at configuration template, owing to do not know the capability set of xTU-R, normally according to most cases, dispose an acquiescence template and issue, the acquiescence template scope of application is very wide, does not generally produce the activation problem, looser aspect the configuration of capability set parameter, may not satisfy user's demand.In the face of this situation, operator often can only dispose the circuit reference template according to factors such as limited user side message reference, loop situation and actual demands by veteran engineer when laying the xDSL business.Under the present situation that but existing ustomer premises access equipment is of a great variety, the upgrading difficult, the xDSL new technology is constantly used, improper at the parameterized template that configuration occurs, perhaps local side and the ustomer premises access equipment ability circuit that causes that conflicts mutually can't activate, perhaps line activation performance difference problem, just can only send veteran engineer to position by the equipment supplier to on-the-spot ability or other information of going to obtain ustomer premises access equipment with other assistant adjustment equipment, this has increased operator and equipment supplier's maintenance cost greatly, has also reduced efficient.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of method and system of obtaining Digital Subscriber Line far-end unit capability set, to obtain the configuration parameter of user side, make things convenient for operator better to dispose line profile.
To achieve these goals, the invention provides a kind of system that obtains Digital Subscriber Line far-end unit capability set, this system comprises the digital circuit couple in multiplexer, the NMS ustomer premises access equipment of unifying, described network management system is used to the digital circuit couple in multiplexer that software support and management are provided, described digital circuit couple in multiplexer also comprises the numeral subscriber line local side unit, described numeral subscriber line local side is provided with the capability set collecting unit in the unit, described capability set collecting unit is used to collect the capability set of ustomer premises access equipment, described ability gatherer process adopts automatic acquisition mode, after handshake phase satisfies Handshake Protocol, the mutual ability of oneself supporting of digital circuit local side unit and digital circuit far-end unit, the capability set message of coming alternately from the digital circuit far-end unit is collected in digital circuit local side unit; After required message is gathered in digital circuit local side unit, with the Message Record that obtained in the pairing buffering area of digital circuit local side unit port; Digital Subscriber Line Access Multiplexer is resolved the capability set message that leaves buffering area in, knows the capability set of Digital Subscriber Line remote equipment, and the capability set in the described capability set message is left in the management information bank.
Preferable, be provided with an automatic diagnosis module in the described digital circuit couple in multiplexer, be used for carrying out diagnostic analysis to the failure of Digital Subscriber Line far-end unit initialization procedure or after finishing initialization procedure.
In order to realize the above-mentioned system that obtains digital line far-end unit capability set, the invention provides a kind of method of obtaining Digital Subscriber Line far-end unit capability set, this method may further comprise the steps:
A, numeral subscriber line local side unit starting ability gatherer process, described ability gatherer process adopts automatic acquisition mode, after handshake phase satisfies Handshake Protocol, the mutual ability of oneself supporting of digital circuit local side unit and digital circuit far-end unit, the capability set message of coming alternately from the digital circuit far-end unit is collected in digital circuit local side unit;
B, numeral subscriber line local side unit gather the capability set message of Digital Subscriber Line far-end unit, after required message is gathered in digital circuit local side unit, with the Message Record that obtained in the pairing buffering area of digital circuit local side unit port; Digital Subscriber Line Access Multiplexer is resolved the capability set message leave buffering area in, knows the capability set of Digital Subscriber Line remote equipment, and the capability set in the described capability set message that leaves buffering area in is left in the management information bank.
Described automatic acquisition mode may further comprise the steps: A11, in the numeral subscriber line local side unit automatic acquisition is set; A12, when the numeral subscriber line local side unit begins to activate, the automatic triggering collection process in numeral subscriber line local side unit.
Described step B further may further comprise the steps: after B1, the intact Digital Subscriber Line far-end unit capability set message of numeral subscriber line local side unit collection, the buffering area of the capability set message deposit that obtains in the numeral subscriber line local side unit; B2, Digital Subscriber Line Access Multiplexer are resolved the Digital Subscriber Line far-end unit capability set message that leaves buffering area in, obtain the capability set of Digital Subscriber Line far-end unit equipment and are stored in management information bank.
Preferable, described numeral subscriber line local side unit is gathered the capability set message of Digital Subscriber Line far-end unit and is carried out in activation.
Preferable, described above method is further comprising the steps of: point out automatically according to the Digital Subscriber Line far-end unit capability set digital subscriber circuit far-end unit capability set message that Digital Subscriber Line Access Multiplexer collects; Perhaps the user is blured template configuration according to Digital Subscriber Line Access Multiplexer institute capacitation collection message.
The step of described fuzzy template configuration specifically comprises: select fuzzy template configuration mode according to Digital Subscriber Line Access Multiplexer institute capacitation collection message; Configuration mode according to fuzzy template calculates optimized concrete template; Carrying out template according to optimized concrete template issues.
Preferable, the described Digital Subscriber Line far-end unit capability set method of obtaining also further may further comprise the steps: after the failure of Digital Subscriber Line far-end unit initialization procedure or finishing initialization procedure, the automatic diagnosis module in the operation Digital Subscriber Line Access Multiplexer is diagnosed.
Implement the present invention, has following beneficial effect: by collection to Digital Subscriber Line far-end unit capability set information, operator can obtain Digital Subscriber Line far-end unit capability set information, can more effectively carry out the configuration of line profile to the user, also can locate because configuration template is unreasonable, not consider Digital Subscriber Line far-end unit limit of power and the inter-communicating problem that causes by enquiring digital subscribers feeder far-end unit capability set information.By Digital Subscriber Line far-end unit capability set is gathered maintenance automatically, can regularly upgrade Digital Subscriber Line far-end unit capability set information.Can blur the configuration of template according to the result of Digital Subscriber Line far-end unit capability set collection, reach optimized configuration, reduce the configuration difficulty of user template, improve the validity and the reliability of line profile.By operation automatic diagnosis module, can which configuration of inquiring user template go wrong and cause the appearance of problem.
Description of drawings
Fig. 1 prior art xDSL system reference model;
Fig. 2 is a prior art ADSL2+ initialization procedure flow chart;
Fig. 3 obtains Digital Subscriber Line far-end unit capability set system diagram for the present invention;
Fig. 4 obtains the flow chart of Digital Subscriber Line far-end unit capability set method for the present invention;
Fig. 5 by among Fig. 4 the flow chart of the fuzzy template configuration method of employing.
Embodiment
Core concept of the present invention is: by enforcement of the present invention, DSLAM local side apparatus operating personnel can gathered when safeguarding automatically, obtain the capability set message of Digital Subscriber Line far-end unit, and configuration during line profile with reference to described capability set message, can't activate or activate unsettled situation thereby reduce the circuit that the unreasonable configuration because of parameterized template produces; Also provide a kind of diagnostic means simultaneously for the location circuit question.
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
In embodiments of the present invention, Fig. 3 has shown the system diagram that the embodiment of the invention provides, and this system comprises DSLAM, the NMS ustomer premises access equipment of unifying.Wherein network management system is used to DSLAM that software support and management are provided, and DSLAM is used to collect the ustomer premises access equipment capability set.
In DSLAM equipment, also comprise network management information storehouse, xDSL local side unit and separator, management information bank is used for storage of collected capability set information, the xDSL local side also comprises the capability set collecting unit in the unit, be used to collect the capability set that sends over from the xDSL far-end unit, separator is used to set up DSLAM and is used for connection between the end equipment.In ustomer premises access equipment, also comprise the xDSL far-end unit, be used for sending ustomer premises access equipment capability set information to DSLAM.
In order to realize the automatic diagnostic function among the DSLAM, in DSLAM, be provided with an automatic diagnosis module, be used for realizing to the failure of Digital Subscriber Line far-end unit initialization procedure or undesirable and carry out diagnostic analysis after finishing initialization procedure to collection result.
In Handshake Protocol G994.1 handshake procedure, at first report CLR information by the xDSL far-end unit, CLR information comprised most of ustomer premises access equipment MODEM the ability parameter that can support, these parameters comprise the protocol mode of support, at different protocol modes, also comprise interleave depth, VDSL2 class parameters such as (profile).For the T1.413 protocol mode, its some ability parameter is mutual in the follow-up stage, as parameters such as maximum interweave.This programme is by gathering the message in the activation, extractability collection parameter therefrom, and these Message Records to DSLAM equipment, make the station-side operations personnel can access the ability parameter collection of terminal equipment, thereby carry out the analysis that template configuration reference and some activate problem.
In order to realize said system Fig. 3, specify the process that the present invention realizes below in conjunction with Fig. 4.In the method for obtaining digital subscriber line transceiver far-end capability set, its concrete steps are as follows:
Step 300: numeral subscriber line local side unit starting ability gatherer process;
In issuing the capability set gatherer process, it adopts the mode of two kinds of collections, a kind of is automatic acquisition mode, by automatic acquisition being set in digital circuit local side unit, when automatic acquisition is in opening, when the numeral subscriber line local side unit begins to activate, the automatic triggering collection process in numeral subscriber line local side unit; Another is the order acquisition mode, by sending acquisition deexcitation digital circuit local side unit.
Step 301: digital circuit local side unit issues activation command to digital circuit local side unit port, template is set is the acquiescence template;
Do not comprise this step when adopting automatic acquisition mode.
Step 302: digital circuit local side unit begins to detect the handshake request signal of digital circuit far-end unit, enters initialization procedure;
Step 303: digital circuit local side unit begins to gather the capability set message that sends over from the digital circuit far-end unit and capability set parameter correlation information each stage;
After handshake phase satisfies Handshake Protocol, the mutual ability of oneself supporting of digital circuit local side unit and digital circuit far-end unit, the capability set message of coming alternately from the digital circuit far-end unit is collected in digital circuit local side unit.In whole activation, xDSL transceiver both sides are at the interaction capabilities collection, and its Main Stage is carried out in handshake phase, and in initialization procedure, digital circuit local side unit just can collect the capability set message that sends over from the digital circuit far-end.Acquisition capacity collection process can be to finish in the whole process that activates, and promptly the capability set message that comes from the digital circuit far-end unit is gathered in digital circuit local side unit in the whole process that activates; The process of acquisition capacity collection also can only be carried out in certain stage of activation, as handshake phase.
Step 304: after required message is gathered in digital circuit local side unit, with the Message Record that obtained in the pairing buffering area of digital circuit local side unit port;
Step 305: recover digital circuit local side unit port initial condition;
Do not comprise this step when using automatic acquisition mode.
Digital circuit local side unit in the time of can not finishing initialization above certain hour after perhaps initialization procedure begins, all needs to recover digital circuit local side unit port initial condition after finishing initialization procedure.
Step 306: Digital Subscriber Line Access Multiplexer is resolved the capability set message that leaves buffering area in, knows the capability set of Digital Subscriber Line remote equipment;
Digital subscriber circuit far-end unit capability set message is taked automatic prompt facility according to demand after Digital Subscriber Line Access Multiplexer is gathered Digital Subscriber Line far-end unit capability set.Realization by above-mentioned steps, station-side operations personnel can obtain the parameter set of terminal unit ability collection, can be according to the xTU-R capability set message of obtaining, Digital Subscriber Line Access Multiplexer is provided with automatic prompt facility when carrying out active template, its concrete steps are as follows: when carrying out the relevant option configuration of MODEM capacity of equipment collection, DSLAM is configured according to institute's capacitation collection, it provides prompting when comprising configuration suitable parameters range of choice or importing unreasonable wrong parameter, by the information line profile suitable for DSLAM user disposes.
Step 307: Digital Subscriber Line Access Multiplexer leaves the capability set that obtains in the management information bank in;
In the Digital Subscriber Line Access Multiplexer management information bank, increased ustomer premises access equipment capability set information expanding node, the capability set that obtains is left in the management information bank, make things convenient for the user to control the interface or to inquire the capability set of corresponding Digital Subscriber Line far-end unit equipment at the network management interface of network management system at Digital Subscriber Line Access Multiplexer.
Step 308: finish.
After the collection of finishing xTU-R capability set information, can carry out template configuration according to the xTU-R capability set that obtains, when being carried out template configuration, DSLAM user can select fuzzy template configuration method, between step 307 and step 308, the implementation procedure of finishing fuzzy template configuration method is described below in conjunction with Fig. 5:
Step 400: select fuzzy template configuration mode according to Digital Subscriber Line Access Multiplexer institute capacitation collection message;
When carrying out template configuration, if select fuzzy template configuration mode, then need to adopt two set of configuration parameters, one group is the parameter that operator's mandatory provision must be observed, as the general density of management information bank power (MIBPSD), the speed that must reach etc., this part must guarantee that activation parameter meets this requirement; Other one group is can optimum parameters, and the choosing of this partial parameters needs the user to specify the principle of an optimization, preferential as speed, stability is preferential, the low-power consumption priority scheduling.
Step 401: the configuration mode according to fuzzy template calculates optimized concrete template;
After the configuration mode that chooses fuzzy template, the software in the network management system is qualifications according to the principle of configuration with given configuration parameter and xTU-R ability, calculates optimized concrete template.
Step 402: carry out template according to concrete template and issue.
By optimized concrete template, operator can be according to the parameter of configuration needs, finishes the selection and the optimization of other parameters by DSLAM according to the capability set information that obtains, realizes performance optimization.
If fuzzy template is preferential with stability in the process of configuration, when the beginning configuration template, operating personnel can dispose the activation rate that needs, the digital circuit multiplexer at first can be gathered UE capability message, the agreement that can support of analysis user equipment then, according to the different agreement pattern, consider after satisfying rate requirement, calculate and can make the stability configuration of sufficient customer demand better.
When the circuit template configuration goes wrong, can realize the process of automatic diagnosis by the following method:
Before step 300, an automatic diagnosis module can be set in the digital circuit multiplexer.By the automatic diagnosis module in the operation Digital Subscriber Line Access Multiplexer, can analyze the problem that its user side line configuring causes.In the process of operation automatic diagnosis module, because allocation problem causes initialization not finish, it is which configuration is out of joint and provide result's report that the automatic diagnosis module can the information analysis of handling capacity collection goes out; Or after initialization procedure was finished, the capability set effect that obtains can not reach when meeting the demands, and also can analyze Digital Subscriber Line far-end unit capability set and user and dispose which problem by the manual diagnostic module of opening.
In finishing the process of above-mentioned all schemes, xTU-C can gather the Digital Subscriber Line far-end unit capability set information of each activation in real time and regularly upgrade the message of Digital Subscriber Line far-end unit capability set, promptly when each activation takes place, xTU-C just gathers Digital Subscriber Line far-end unit capability set information, by setting the regularly mechanism of lastest imformation, the Digital Subscriber Line far-end unit capability set message that renewal collects makes things convenient for the staff to realize the automatic collection of Digital Subscriber Line far-end unit capability set is safeguarded on DSLAM equipment.The user do not open an account or the situation of user when changing ustomer premises access equipment under, DSLAM local side apparatus operating personnel obtain user side capability set information by inserting testing equipment at user side by test before opening an account, better dispose line profile for the user.
In sum, the present invention is by the collection to Digital Subscriber Line far-end unit capability set information, operator can obtain Digital Subscriber Line far-end unit capability set information, can carry out more effectively line profile configuration for the user, also can locate because configuration template is unreasonable, and not consider Digital Subscriber Line far-end unit limit of power and the inter-communicating problem that causes by enquiring digital subscribers feeder far-end unit capability set information.Automatically gather maintenance by capability set, can regularly upgrade Digital Subscriber Line far-end unit capability set information the Digital Subscriber Line far-end unit.Can blur the configuration of template according to the result of Digital Subscriber Line far-end unit capability set collection, reach optimized configuration, thereby reduced the configuration difficulty of user template, improve the validity and the reliability of line profile.By operation automatic diagnosis module, which configuration in can the inquiring user template goes wrong and causes capacity gauge collection procedure failure, makes things convenient for staff's maintenance.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (9)
1. a method of obtaining Digital Subscriber Line far-end unit capability set is characterized in that, this method may further comprise the steps:
A, numeral subscriber line local side unit starting ability gatherer process, described ability gatherer process adopts automatic acquisition mode, after handshake phase satisfies Handshake Protocol, the mutual ability of oneself supporting of digital circuit local side unit and digital circuit far-end unit, the capability set message of coming alternately from the digital circuit far-end unit is collected in digital circuit local side unit;
B, numeral subscriber line local side unit gather the capability set message of Digital Subscriber Line far-end unit, after required message is gathered in digital circuit local side unit, with the Message Record that obtained in the pairing buffering area of digital circuit local side unit port; Digital Subscriber Line Access Multiplexer is resolved the capability set message leave buffering area in, knows the capability set of Digital Subscriber Line remote equipment, and the capability set in the described capability set message that leaves buffering area in is left in the management information bank.
2. the method for obtaining Digital Subscriber Line far-end unit capability set according to claim 1 is characterized in that, described automatic acquisition mode may further comprise the steps:
A11, automatic acquisition is set in the numeral subscriber line local side unit;
A12, when the numeral subscriber line local side unit begins to activate, the automatic triggering collection process in numeral subscriber line local side unit.
3. the method for obtaining Digital Subscriber Line far-end unit capability set according to claim 1 is characterized in that, described step B further may further comprise the steps:
After B1, the intact Digital Subscriber Line far-end unit capability set message of numeral subscriber line local side unit collection, the buffering area of the capability set message deposit that obtains in the numeral subscriber line local side unit;
B2, Digital Subscriber Line Access Multiplexer are resolved the Digital Subscriber Line far-end unit capability set message that leaves buffering area in, obtain the capability set of Digital Subscriber Line far-end unit equipment and are stored in management information bank.
4. the method for obtaining Digital Subscriber Line far-end unit capability set according to claim 1 is characterized in that, described numeral subscriber line local side unit is gathered the capability set message of Digital Subscriber Line far-end unit and carried out in activation.
5. according to each described method of obtaining Digital Subscriber Line far-end unit capability set of claim 1 to 3, it is characterized in that described method is further comprising the steps of:
Automatically point out according to the Digital Subscriber Line far-end unit capability set digital subscriber circuit far-end unit capability set message that Digital Subscriber Line Access Multiplexer collects;
Perhaps the user is blured template configuration according to the capability set message that Digital Subscriber Line Access Multiplexer obtained.
6. the method for obtaining Digital Subscriber Line far-end unit capability set according to claim 5 is characterized in that, described step of bluring template configuration specifically comprises:
Select fuzzy template configuration mode according to Digital Subscriber Line Access Multiplexer institute capacitation collection message;
Configuration mode according to fuzzy template calculates optimized concrete template;
Carrying out template according to optimized concrete template issues.
7. according to each described method of obtaining Digital Subscriber Line far-end unit capability set of claim 1 to 3, it is characterized in that described method further may further comprise the steps:
After the failure of Digital Subscriber Line far-end unit initialization procedure or finishing initialization procedure, the automatic diagnosis module in the operation Digital Subscriber Line Access Multiplexer is diagnosed.
8. system that obtains Digital Subscriber Line far-end unit capability set, this system comprises the digital circuit couple in multiplexer, the NMS ustomer premises access equipment of unifying, described network management system is used to the digital circuit couple in multiplexer that software support and management are provided, described digital circuit couple in multiplexer also comprises the numeral subscriber line local side unit, it is characterized in that, described numeral subscriber line local side is provided with the capability set collecting unit in the unit, described capability set collecting unit is used to collect the capability set of ustomer premises access equipment, described ability gatherer process adopts automatic acquisition mode, after handshake phase satisfies Handshake Protocol, the mutual ability of oneself supporting of digital circuit local side unit and digital circuit far-end unit, the capability set message of coming alternately from the digital circuit far-end unit is collected in digital circuit local side unit; After required message is gathered in digital circuit local side unit, with the Message Record that obtained in the pairing buffering area of digital circuit local side unit port; Digital Subscriber Line Access Multiplexer is resolved the capability set message that leaves buffering area in, knows the capability set of Digital Subscriber Line remote equipment, and the capability set in the described capability set message is left in the management information bank.
9. the system that obtains Digital Subscriber Line far-end unit capability set according to claim 8, it is characterized in that, be provided with an automatic diagnosis module in the described digital circuit couple in multiplexer, be used for carrying out diagnostic analysis to the failure of Digital Subscriber Line far-end unit initialization procedure or after finishing initialization procedure.
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