CN105591772A - Data transmission method and apparatus - Google Patents
Data transmission method and apparatus Download PDFInfo
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- CN105591772A CN105591772A CN201410569315.8A CN201410569315A CN105591772A CN 105591772 A CN105591772 A CN 105591772A CN 201410569315 A CN201410569315 A CN 201410569315A CN 105591772 A CN105591772 A CN 105591772A
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Abstract
The invention discloses a data transmission method and apparatus, wherein the method and apparatus are applied to a data transmission network including a first link and a second link. The connection ways of the first link and the second link are different; and protection switching can be carried out between the first link and the second link. The method comprises: when data transmission performances of the first link and the second link are reduced, a first performance parameter of the first link and a second performance parameter of the second link are obtained, wherein the first performance parameter and the second performance parameter express the data transmission performances of the first link and the second link respectively; the obtained first performance parameter and the obtained second performance parameter are compared to compare the data transmission performances of the first link and the second link; and the link with the good data transmission performance is selected to carry out data transmission.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of data transmission method and device.
Background technology
Conventionally, Packet Transport Network (PacketTransportNetwork, PTN) adopts optical fiber to connect, butBe for some special situation, the place that for example cannot lay optical fiber in high mountain, desert etc., can pass throughMicrowave equipment carries out microwave joining. The microwave link that both microwave joining can have been formed in actual applications, is doneFor active link, the optical fiber link that optical fiber is connected to form is as reserve link; Also optical fiber can be connected to shapeThe optical fiber link becoming is as active link, and the microwave link that microwave joining is formed is as reserve link.
In the time that weather is deteriorated, can there is Adaptive Modulation (Adaptive in the microwave link in workModulation, AM) incision,, to the more modulation format switching of low order, mate by reducing bit rateAvailable bandwidth, this mechanism can cause the raising of the end-to-end bit error rate, and trigger protection is switched, and falls from microwave linkChange to optical fiber link, carry out transfer of data by optical fiber link.
When Signal Degrade (SignalDegrade, SD) occurs, when packet loss reaches certain thresholding, workIn optical fiber link can trigger protection switch, be switched to microwave link from optical fiber link, undertaken by microwave linkTransfer of data.
Like this, when under the high and optical fiber link packet loss of the microwave link bit error rate also high situation, be difficult to determine numberReportedly defeated link, may cause link frequently to be switched, and then affect transfer of data.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provides a kind of data transmission method and device.
A kind of data transmission method that the embodiment of the present invention provides, is applied to and comprises the first link and the second linkData transmission network, described the first link is different with the connected mode of described the second link, described the first linkAnd can protect and switch between described the second link, described method comprises:
In the time determining that the data transmission performance of described the first link and described the second link all declines, described in obtainingThe first performance parameter of the first link and the second performance parameter of described the second link, described the first performance parameterCan represent respectively the transfer of data of described the first link and described the second link with described the second performance parameterCan;
By described the first performance parameter of obtaining and described the second performance parameter are compared, come describedThe data transmission performance of the first link and described the second link compares;
Choose the good link of data transmission performance and carry out transfer of data.
Wherein, described data transmission network is Packet Transport Network PTN, and described the first link is microwave link, instituteStating the second link is optical fiber link;
Described obtain the first performance parameter of described microwave link and the second performance parameter of described fiber links itBefore, described method also comprises:
Detect described microwave link whether Adaptive Modulation AM incision occurs, and detect described optical fiber linkWhether there is Signal Degrade SD;
In the time generation AM incision being detected and SD occurs, determine described microwave link and described optical fiber linkData transmission performance all decline.
Wherein, described the first performance parameter comprises the first performance degradation index Lm，
Accordingly, described in obtain described the first performance parameter, comprising:
Obtain AM notice message, the microwave node that described AM notice message is described microwave link is occurringAfter AM incision, send, after described AM notice message comprises AM incision, the current of described microwave link canDedicated bandwidth Bn；
According to current available bandwidth BnMaximum available bandwidth B with described microwave link0, calculate firstPerformance degradation index Lm。
Wherein, described performance parameter comprises the second performance degradation index Lp，
Accordingly, the performance parameter of obtaining described the second link described in comprises:
Obtain the second performance degradation index L of described optical fiber link by PTNOAM messagep, described PTNOAM message comprises: continuity detects OAM message, Connectivity Verification OAM message or packet loss and measuresOAM message.
Wherein, described the first performance parameter that described basis is obtained and described the second performance parameter are to described firstThe data transmission performance of link and described the second link compares, and comprising:
Directly compare the first performance degradation index LmWith the second performance degradation index LpSize, less propertyThe data transmission performance of can deteriorated index corresponding link is better; Or,
Respectively the first performance degradation index L in time zone according to the rulesmWith the second performance degradation index Lp，Obtain described the first link in stipulated time region and the performance degradation index mean square deviation of described the second link;
The performance degradation index mean square deviation of more described the first link and described the second link, less performance is badThe data transmission performance of changing link corresponding to index mean square deviation is better.
A kind of data transmission device that the embodiment of the present invention provides, is applied to and comprises the first link and the second linkData transmission network, described the first link is different with the connected mode of described the second link, described the first linkAnd can protect and switch between described the second link, described device comprises:
Acquiring unit, for the data transmission performance when determining described the first link and described the second link all underWhile falling, obtain the first performance parameter of described the first link and the second performance parameter of described the second link, instituteState the first performance parameter and described the second performance parameter and can represent respectively described the first link and described the second chainThe data transmission performance on road;
Comparing unit, for by carrying out described the first performance parameter of obtaining and described the second performance parameterRelatively, the data transmission performance of described the first link and described the second link is compared;
Control module, carries out transfer of data for choosing the good link of data transmission performance.
Wherein, described data transmission network is Packet Transport Network PTN, and described the first link is microwave link, instituteStating the second link is optical fiber link;
Described device also comprises:
Whether detecting unit, there is Adaptive Modulation AM incision, Yi Jijian for detection of described microwave linkSurvey described optical fiber link whether Signal Degrade SD occurs;
In the time generation AM incision being detected and SD occurs, determine described microwave link and described optical fiber linkData transmission performance all decline;
Accordingly, described acquiring unit, specifically for when determining described microwave link and described optical fiber linkWhen data transmission performance all declines, obtain the first performance parameter of described microwave link and described fiber linksThe second performance parameter.
Wherein, described the first performance parameter comprises the first performance degradation index Lm，
Accordingly, described acquiring unit, for obtaining AM notice message, described AM notice message is instituteState the microwave node of microwave link what occur to send after AM incision, described AM notice message comprises AMThe current available bandwidth B of described microwave link after incisionn；
According to the maximum available bandwidth B of current available bandwidth Bn and described microwave link0, calculate firstPerformance degradation index Lm。
Wherein, described performance parameter comprises the second performance degradation index Lp，
Accordingly, described acquiring unit, for obtaining of described optical fiber link by PTNOAM messageTwo performance degradation index Lp, described PTNOAM message comprises: continuity detects OAM message, connectionProperty checking OAM message or packet loss are measured OAM message.
Wherein, described comparing unit, for directly comparing the first performance degradation index LmWith the second performance degradationIndex LpSize, the data transmission performance of link corresponding to less performance degradation index is better; Or,
For the first performance degradation index L in time zone according to the rules respectivelymRefer to the second performance degradationMark Lp, the performance degradation index that obtains described the first link in stipulated time region and described the second link is equalVariance;
The performance degradation index mean square deviation of more described the first link and described the second link, less performance is badThe data transmission performance of changing link corresponding to index mean square deviation is better.
As from the foregoing, technical scheme of the present invention comprises: when described the first link and described the second chain being detectedWhen the data transmission performance on road all declines, obtain the first performance parameter and described second chain of described the first linkSecond performance parameter on road; According to described the first performance parameter of obtaining and described the second performance parameter to describedThe data transmission performance of the first link and described the second link compares; Choose data transmission performance goodLink carries out transfer of data. Thus, the technical scheme of the embodiment of the present invention can be at the first link and the second chainWhen the data transmission performance on road all declines, choose the good link of data transmission performance and carry out transfer of data, keep awayExempt from link and frequently switch, thereby ensure data normal transmission.
When data transmission network is Packet Transport Network PTN, described the first link is microwave link, described the second chainWhen road is optical fiber link, once there is AM incision in described microwave link, and described optical fiber link generation SD,Be the data transmission performance of described microwave link and described optical fiber link while all declining, the present invention can choose numberReportedly the link of defeated better performances carries out transfer of data, overcome prior art cannot specified data the link of transmissionProblem, thereby avoid link frequently to switch, and then ensure data normal transmission.
Brief description of the drawings
Fig. 1 is the realization flow figure of the first embodiment of a kind of data transmission method provided by the invention;
Fig. 2 is the structural representation of the applicable PTN net of one embodiment of the invention;
Fig. 3 is the realization flow figure of the second embodiment of a kind of data transmission method provided by the invention;
Fig. 4 is the structural representation of the applicable PTN net of another embodiment of the present invention;
Fig. 5 is the realization flow figure of the 3rd embodiment of a kind of data transmission method provided by the invention;
Fig. 6 is the structural representation of the embodiment of a kind of data transmission device provided by the invention.
Detailed description of the invention
The first embodiment of a kind of data transmission method provided by the invention, is applied to and comprises the first link andThe data transmission network of two links, described the first link is different with the connected mode of described the second link, and describedBetween one link and described the second link, can protect and switch, as shown in Figure 1, described method comprises:
Step 101, in the time determining that the data transmission performance of described the first link and described the second link all declines,Obtain the first performance parameter of described the first link and the second performance parameter of described the second link;
Here, described the first performance parameter and described the second performance parameter can represent respectively described the first linkData transmission performance with described the second link;
In actual applications, described data transmission network can be Packet Transport Network PTN, and described the first link canThink microwave link, described the second link can be optical fiber link;
Accordingly, the described data transmission performance when definite described the first link and described the second link all declinesTime, obtain the first performance parameter of described the first link and the second performance parameter of described the second link, for:
In the time determining that the data transmission performance of described microwave link and described optical fiber link all declines, described in obtainingThe first performance parameter of microwave link and the second performance parameter of described fiber links.
In one embodiment, obtaining of the first performance parameter of described microwave link and described fiber linksBefore two performance parameters, described method also comprises:
Detect described microwave link whether Adaptive Modulation AM incision occurs, and detect described optical fiber linkWhether there is Signal Degrade SD;
In the time generation AM incision being detected and SD occurs, determine described microwave link and described optical fiber linkData transmission performance all decline.
It should be noted that, in actual applications, when described data transmission network is Packet Transport Network PTN,When described the first link is microwave link, described the first performance parameter comprises the first performance degradation index Lm，
Accordingly, described in obtain described the first performance parameter, comprising:
Obtain AM notice message, the microwave node that described AM notice message is described microwave link is occurringAfter AM incision, send, after described AM notice message comprises AM incision, the current of described microwave link canDedicated bandwidth Bn；
According to current available bandwidth BnMaximum available bandwidth B with described microwave link0, calculate firstPerformance degradation index Lm。
Concrete, in the time that AM incision occurs described microwave link, described microwave node is according to current modulationForm, by inquiring about the correspondence table of default modulation format and available bandwidth, determines current available bandwidth Bn；Generate AM notice message, described AM notice message comprises current available bandwidth Bn。
Be understandable that, in actual applications, when described data transmission network is PTN, described the second chainWhen road is optical fiber link, described performance parameter comprises the second performance degradation index Lp，
Accordingly, the performance parameter of obtaining described the second link described in comprises:
By PTN multiprotocol label switching-transmission framework (MultiProtocolLabelSwitch-TransportProfile, MPLS-TP) operate-manage-safeguard (OperationAdministrationAndMaintenance, OAM) message obtains the second performance degradation index L of described optical fiber linkp, described inMPLS-TPOAM message comprises: continuity detection (ContinuousCheck, CC) OAM message,Connectivity Verification (ContinuesVerification, CV) OAM message or packet loss are measured (LossMeasurement, LM) OAM message.
Described the first performance parameter that step 102, basis are obtained and described the second performance parameter are to described firstThe data transmission performance of link and described the second link compares;
Concrete, described the first performance parameter that described basis is obtained and described the second performance parameter are to described theThe data transmission performance of one link and described the second link compares, and can realize in the following ways:
Directly compare the first performance degradation index LmWith the second performance degradation index LpSize, less propertyThe data transmission performance of can deteriorated index corresponding link is better; Or,
Respectively the first performance degradation index L in time zone according to the rulesmWith the second performance degradation index Lp，Obtain described the first link in stipulated time region and the performance degradation index mean square deviation of described the second link;
The performance degradation index mean square deviation of more described the first link and described the second link, less performance is badThe data transmission performance of changing link corresponding to index mean square deviation is better.
Step 103, choose the good link of data transmission performance and carry out transfer of data.
The second embodiment of a kind of data transmission method provided by the invention, is applied to and comprises microwave link and lightThe PTN net of fine link, as shown in Figure 2, can protect between described microwave link and described optical fiber linkProtective switching, in the present embodiment, microwave link is work at present link, described microwave link is active link.
As shown in Figure 3, described method comprises:
Step 301, in the time there is AM incision in described microwave link, microwave node sends AM to source nodeNotice message.
Microwave link occurs after AM incision, and microwave link has according to circumstances reduced modulation code check, such as by512QAM is reduced to 256QAM, the Bandwidth Reduction that causes microwave link to provide.
Because microwave link is certain at intermediate frequency interval, at cross polarization interference canceler (Cross-PolarisationInterferenceCounteracter, XPIC) etc. in setting situation about remaining unchanged, the available bandwidth providing is onlyRelevant with modulation format, therefore, after configuration, just can know, under the modulation format of supporting in the machine,The available bandwidth that can provide is respectively how many. Utilize this point, these values can be written in a table, storageIn microwave node (equipment). Complete available that microwave equipment after configuration provides under different modulating formThe form of bandwidth, as shown in table 1:
| Numbering | Modulation format | Available bandwidth |
| 01 | 1024QAM | 700M |
| 02 | 512QAM | 500M |
| … | … | … |
| N | QPSK | 100M |
Table 1
When microwave link occurs after AM, can adopt the data in table 1 to weigh performance degradation degree, avoid adoptingBy the mode of Measurement bandwidth or packet loss as required, there is simplified apparatus function and flow process, alleviate microwave equipmentAnd the advantage such as the burden of link.
Microwave link occurs after AM, and microwave node produces an AM notice message, AM notice messageForm can be as shown in table 2:
| Sequence number | AM | Current available bandwidth | Flag |
Table 2
Wherein, sequence number is used for being indicated in after microwave link establishment, and the number of times of AM occurs; AM is for indicatingWhether there is AM action, new AM does not occur and move AM=0, new AM has occurred and movedAM=1; There is for indicating the current available bandwidth B that AM can provide afterwards in current available bandwidthn，n＝1，2 ... n, described BnCan draw by question blank 1 according to the modulation format after modulation; Flag is for indicatingAM action switchback (Flag=0) or incision (Flag=1). In actual applications, also can work as described micro-When AM occurs ripple link, microwave node just sends AM notice message to source node, receives AM notice reportThe described source node of literary composition is AM switchback or AM incision according to the Flag judgement of AM notice message, whenWhile being AM incision, the operation whether detection of execution step 302 receives the SD information of optical fiber link.
Step 302, receive that the source node of AM notice message detects the SD information of whether receiving optical fiber link,In the time receiving SD information, enter step 303; In the time confiscating SD information, enter step 306.
Step 303, source node obtain the first performance degradation index L of microwave linkm, and obtain optical fiber chainThe second performance degradation index L on roadp。
Common, first performance degradation index Lm=(B0-Bn)/B0*100%. When sending out of AM notice messageSending the cycle is T, and the stand-by period of setting, while being T ', can be got N=T '/T message as weighing microwaveThe index that link performance is deteriorated, can ensure that deteriorated index calculates compared with under stable state at link.The described transmission cycle refers in the time there is AM incision, and the time interval of AM notice message occurs microwave node,The transmission cycle of AM notice message can arrange.
The described stand-by period refers to from receiving that AM notice message is to carrying out the time of switching of protecting. Now,One performance degradation index Lm＝(B0-BN)/B0* 100%, wherein, N=T '/T, B0For the setting of microwave linkBandwidth, the maximum available bandwidth of the microwave link arranging in the time of normal work.
Source node can obtain by PTNMPLS-TPOAM the second performance degradation index of optical fiber linkLp. Concrete, can detect CC or the realization of Connectivity Verification CVOAM message, work by continuityAt aggressive mode; Or measure LMOAM message by special packet loss and realize, be operated in pattern as required.
Step 304, by the first performance degradation index L relativelymWith the second performance degradation index Lp, to describedThe data transmission performance of microwave link and described optical fiber link compares, when the transfer of data of microwave linkBetter time, enter step 305; In the time that the data transmission performance of optical fiber link is better, enter step 306.
In actual applications, can compare in the following ways LmAnd LpDifference degree.
A) simple comparison algorithm: directly compare LmAnd LpSize.
B) threshold decision mode: introduce factor k (k >=1), work as K=1, identical with simple comparison algorithm.
When K ≠ 1, and Lp/Lm> when k, think that the performance degradation degree of optical fiber link is more severe than microwave link,Such as k=1.5, when the packet loss of optical fiber link is microwave link more than 1.5 times, the deterioration of optical fiber linkDegree is greater than microwave link;
When K ≠ 1, and 1 < Lp/LmWhen < k, think that the performance degradation of optical fiber link and microwave link are suitable, needAdopt following fluctuation judgment mode to judge.
C) fluctuation judgment mode: in conjunction with threshold decision method, or according to client's business need, for example client's industryBe engaged in and do not require that bandwidth maximizes, and requiring on more stable link, by judging the performance of two linksDeteriorated degree of fluctuation compares.
Lmi＝(B0-Bi)/B0*100％，i＝1,2,…N
μmAnd μpBe respectively the performance degradation mean value of microwave link and optical fiber link;
σm，σpBe respectively the performance degradation value mean square deviation of microwave link and optical fiber link, for weighing two chainsThe degree of fluctuation on road, i.e. degree of stability;
If σm＞σp, representing that the fluctuation of microwave link is greater than optical fiber link, optical fiber link is than microwave link moreStable;
If σm＜σp, representing that the fluctuation of microwave link is less than optical fiber link, microwave link is than optical fiber link moreStable.
Step 305, do not switch, continue to use microwave link to carry out transfer of data, finish this flow process.
Step 306, switch to optical fiber link and carry out transfer of data, finish this flow process.
The 3rd embodiment of a kind of data transmission method provided by the invention, is applied to and comprises microwave link and lightThe PTN net of fine link, as shown in Figure 4, can protect between described microwave link and described optical fiber linkProtective switching, in the present embodiment, optical fiber link is work at present link, described optical fiber link is active link.
As shown in Figure 5, described method comprises:
Step 501, when detecting that optical fiber link occurs when SD, whether source node detects receives microwave linkAM notifies message, in the time receiving AM notice message, enters step 502; When not receiving AM noticeWhen message, enter step 505;
Step 502, source node obtain the first performance degradation index L of microwave linkm, and obtain optical fiber chainThe second performance degradation index L on roadp。
Step 503, by the first performance degradation index L relativelymWith the second performance degradation index Lp, to describedThe data transmission performance of microwave link and described optical fiber link compares, when the transfer of data of optical fiber linkBetter time, enter step 504; In the time that the data transmission performance of microwave link is better, enter step 505.
Step 504, do not switch, continue to use optical fiber link to carry out transfer of data, finish this flow process.
Step 505, switch to microwave link and carry out transfer of data, finish this flow process.
The first embodiment of a kind of data transmission device provided by the invention, is applied to and comprises the first link andThe data transmission network of two links, described the first link is different with the connected mode of described the second link, and describedBetween one link and described the second link, can protect and switch, in the present embodiment, described transfer of dataDevice can be source node, and as shown in Figure 6, described device comprises:
Acquiring unit 601, for the data transmission performance when definite described the first link and described the second linkWhile all decline, obtain the first performance parameter of described the first link and the second performance parameter of described the second link,Described the first performance parameter and described the second performance parameter can represent respectively described the first link and described secondThe data transmission performance of link;
Comparing unit 602, described the first performance parameter and described the second performance parameter pair obtained for basisThe data transmission performance of described the first link and described the second link compares;
Control module 603, carries out transfer of data for choosing the good link of data transmission performance.
In one embodiment, described data transmission network is Packet Transport Network PTN, and described the first link is microwaveLink, described the second link is optical fiber link;
Whether described device also comprises described detecting unit 604, occur adaptive for detection of described microwave linkShould modulate AM incision, and detect described optical fiber link whether Signal Degrade SD occurs; Send out when detectingWhen raw AM incision and generation SD, determine the data transmission performance of described microwave link and described optical fiber linkAll decline.
Accordingly, described acquiring unit 601, determines described microwave link and described optical fiber chain specifically for working asWhen the data transmission performance on road all declines, obtain the first performance parameter and the described light chain of described microwave linkSecond performance parameter on road.
Be understandable that, described detecting unit 604 can occur testing result to described acquiring unit601, so that described acquiring unit 601 executable operations.
In one embodiment, described data transmission network is Packet Transport Network PTN, and described the first link is micro-Ripple link, described the first performance parameter comprises the first performance degradation index Lm，
Accordingly, described acquiring unit 601, for obtaining AM notice message, described AM notice messageThe microwave node that is described microwave link sends after generation Adaptive Modulation AM incision, and described AM is logicalKnow that message comprises the current available bandwidth B of described microwave link after AM incisionn；
According to current available bandwidth BnMaximum available bandwidth B with described microwave link0, calculate firstPerformance degradation index Lm。
In one embodiment, described data transmission network comprises PTN, and described the second link comprises optical fiber link,Described performance parameter comprises the second performance degradation index Lp, described acquiring unit 601, for many by PTNProtocol label exchanges-transmits framework MPLS-TP and operate-manage-safeguard that OAM message obtains described optical fiber chainThe second performance degradation index L on roadp, described MPLS-TPOAM message comprises: continuity detects OAMMessage, Connectivity Verification OAM message or packet loss are measured OAM message.
In one embodiment, described comparing unit 602, for directly comparing the first performance degradation index LmWithThe second performance degradation index LpSize, the data transmission performance of link corresponding to less performance degradation indexBetter; Or,
For the first performance degradation index L in time zone according to the rules respectivelymRefer to the second performance degradationMark Lp, the performance degradation index that obtains described the first link in stipulated time region and described the second link is equalVariance;
The performance degradation index mean square deviation of more described the first link and described the second link, less performance is badThe data transmission performance of changing link corresponding to index mean square deviation is better.
In the time that microwave node is split type packet microwave equipment, split type packet microwave equipment in the time there is AMAvailable bandwidth information is fed back to conservation treatment module; In the time that microwave node is full outdoor microwave equipment, sending outWhen raw AM, full outdoor microwave equipment feeds back to available bandwidth information the conservation treatment equipment of connection; Receive anti-After the bandwidth information of feedback, notify upstream equipment (source node). Described available bandwidth information can be passed by message formPass.
In sum, technical scheme of the present invention comprises: when described the first link and described the second chain being detectedWhen the data transmission performance on road all declines, obtain the first performance parameter and described second chain of described the first linkSecond performance parameter on road; According to described the first performance parameter of obtaining and described the second performance parameter to describedThe data transmission performance of the first link and described the second link compares; Choose data transmission performance goodLink carries out transfer of data. Thus, the technical scheme of the embodiment of the present invention can be at the first link and the second chainWhen the data transmission performance on road all declines, choose the good link of data transmission performance and carry out transfer of data, keep awayExempt from link and frequently switch, thereby ensure data normal transmission.
When data transmission network is Packet Transport Network PTN, described the first link is microwave link, described the second chainWhen road is optical fiber link, once there is AM incision in described microwave link, and described optical fiber link generation SD,Be the data transmission performance of described microwave link and described optical fiber link while all declining, the present invention can choose numberReportedly the link of defeated better performances carries out transfer of data, overcome prior art cannot specified data the link of transmissionProblem, thereby avoid link frequently to switch, and then ensure data normal transmission.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or meterCalculation machine program product. Therefore, the present invention can adopt hardware implementation example, implement software example or in conjunction with software andThe form of the embodiment of hardware aspect. And the present invention can adopt one or more and wherein include calculatingThe computer-usable storage medium of machine usable program code (includes but not limited to magnetic disc store and optical storageDevice etc.) form of the upper computer program of implementing.
The present invention is that reference is according to the method for the embodiment of the present invention, equipment (system) and computer programFlow chart and/or block diagram describe. Should understand can be by computer program instructions realization flow figure and/or sideFlow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or the knot of square frameClose. Can provide these computer program instructions to all-purpose computer, special-purpose computer, Embedded Processor orThe processor of other programmable data processing device is to produce a machine, and making can by computer or otherThe instruction that the processor of programming data treatment facility is carried out produces for realizing in flow process or multiple of flow chartThe device of the function of specifying in square frame of flow process and/or block diagram or multiple square frame.
These computer program instructions also can be stored in can vectoring computer or other programmable data processing deviceIn computer-readable memory with ad hoc fashion work, make to be stored in this computer-readable memoryInstruction produces the manufacture that comprises command device, and this command device is realized at flow process of flow chart or multiple streamThe function of specifying in square frame of journey and/or block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makeMust on computer or other programmable devices, carry out sequence of operations step to produce computer implemented placeReason, thus the instruction of carrying out on computer or other programmable devices is provided for realizing one of flow chartThe step of the function of specifying in square frame of flow process or multiple flow process and/or block diagram or multiple square frame.
The above, be only preferred embodiment of the present invention, is not intended to limit protection model of the present inventionEnclose.
Claims (10)
1. a data transmission method, is applied to the data transmission network that comprises the first link and the second link, instituteState the first link different with the connected mode of described the second link, described the first link and described the second link itBetween can protect and switch, it is characterized in that, described method comprises:
In the time determining that the data transmission performance of described the first link and described the second link all declines, described in obtainingThe first performance parameter of the first link and the second performance parameter of described the second link, described the first performance parameterCan represent respectively the transfer of data of described the first link and described the second link with described the second performance parameterCan;
By described the first performance parameter of obtaining and described the second performance parameter are compared, come describedThe data transmission performance of the first link and described the second link compares;
Choose the good link of data transmission performance and carry out transfer of data.
2. method according to claim 1, is characterized in that, described data transmission network is grouping transmissionNet PTN, described the first link is microwave link, described the second link is optical fiber link;
Before obtaining the first performance parameter of described microwave link and the second performance parameter of described fiber links,Described method also comprises:
Detect described microwave link whether Adaptive Modulation AM incision occurs, and detect described optical fiber linkWhether there is Signal Degrade SD;
In the time generation AM incision being detected and SD occurs, determine described microwave link and described optical fiber linkData transmission performance all decline.
3. method according to claim 2, is characterized in that, described the first performance parameter comprises firstPerformance degradation index Lm，
Accordingly, described in obtain described the first performance parameter, comprising:
Obtain AM notice message, the microwave node that described AM notice message is described microwave link is occurringAfter AM incision, send, after described AM notice message comprises AM incision, the current of described microwave link canDedicated bandwidth Bn；
According to current available bandwidth BnMaximum available bandwidth B with described microwave link0, calculate firstPerformance degradation index Lm。
4. according to the method in claim 2 or 3, it is characterized in that, described performance parameter comprises secondPerformance degradation index Lp,
Accordingly, the performance parameter of obtaining described the second link described in comprises:
Obtain the second performance degradation index L of described optical fiber link by PTNOAM messagep, described PTNOAM message comprises: continuity detects OAM message, Connectivity Verification OAM message or packet loss and measuresOAM message.
5. method according to claim 4, is characterized in that, the described primary that described basis is obtainedEnergy parameter and described the second performance parameter are entered the data transmission performance of described the first link and described the second linkRow relatively, comprising:
Directly compare the first performance degradation index LmWith the second performance degradation index LpSize, less propertyThe data transmission performance of can deteriorated index corresponding link is better; Or,
Respectively the first performance degradation index Lm and the second performance degradation index in time zone according to the rulesLp, obtain all sides of performance degradation index of described the first link in stipulated time region and described the second linkPoor;
The performance degradation index mean square deviation of more described the first link and described the second link, less performance is badThe data transmission performance of changing link corresponding to index mean square deviation is better.
6. a data transmission device, is applied to the data transmission network that comprises the first link and the second link, instituteState the first link different with the connected mode of described the second link, described the first link and described the second link itBetween can protect and switch, it is characterized in that, described device comprises:
Acquiring unit, for the data transmission performance when determining described the first link and described the second link all underWhile falling, obtain the first performance parameter of described the first link and the second performance parameter of described the second link, instituteState the first performance parameter and described the second performance parameter and can represent respectively described the first link and described the second chainThe data transmission performance on road;
Comparing unit, for by carrying out described the first performance parameter of obtaining and described the second performance parameterRelatively, the data transmission performance of described the first link and described the second link is compared;
Control module, carries out transfer of data for choosing the good link of data transmission performance.
7. device according to claim 6, is characterized in that, described data transmission network is grouping transmissionNet PTN, described the first link is microwave link, described the second link is optical fiber link;
Described device also comprises:
Whether detecting unit, there is Adaptive Modulation AM incision, Yi Jijian for detection of described microwave linkSurvey described optical fiber link whether Signal Degrade SD occurs;
In the time generation AM incision being detected and SD occurs, determine described microwave link and described optical fiber linkData transmission performance all decline;
Accordingly, described acquiring unit, specifically for when determining described microwave link and described optical fiber linkWhen data transmission performance all declines, obtain the first performance parameter of described microwave link and described fiber linksThe second performance parameter.
8. device according to claim 7, is characterized in that, described the first performance parameter comprises firstPerformance degradation index Lm，
Accordingly, described acquiring unit, for obtaining Adaptive Modulation AM notice message, described AM is logicalKnow that message is that the microwave node of described microwave link sends after AM incision occurring, described AM notice reportLiterary composition comprises the current available bandwidth B of described microwave link after AM incisionn；
According to current available bandwidth BnMaximum available bandwidth B with described microwave link0, calculate firstPerformance degradation index Lm。
9. according to the device described in claim 7 or 8, it is characterized in that, described performance parameter comprises secondPerformance degradation index Lp，
Accordingly, described acquiring unit, for obtaining of described optical fiber link by PTNOAM messageTwo performance degradation index Lp, described PTNOAM message comprises: continuity detects OAM message, connectionProperty checking OAM message or packet loss are measured OAM message.
10. device according to claim 9, is characterized in that, described comparing unit, for directlyRelatively the first performance degradation index LmWith the second performance degradation index LpSize, less performance degradation refers toThe data transmission performance of marking corresponding link is better; Or,
For respectively according to the rules the first performance degradation index Lm and the second performance degradation in time zone refer toMark Lp, the performance degradation index that obtains described the first link in stipulated time region and described the second link is equalVariance;
The performance degradation index mean square deviation of more described the first link and described the second link, less performance is badThe data transmission performance of changing link corresponding to index mean square deviation is better.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656311A (en) * | 2016-12-15 | 2017-05-10 | 国网山东省电力公司长岛县供电公司 | Data link backup apparatus and method |
| CN112822102A (en) * | 2020-12-30 | 2021-05-18 | 瑞斯康达科技发展股份有限公司 | Link switching method, device, equipment, system and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101291160A (en) * | 2008-05-30 | 2008-10-22 | 京信通信系统（中国）有限公司 | Backup system for microwave optical fiber link and backup method thereof |
| CN101478815A (en) * | 2008-12-15 | 2009-07-08 | 华为技术有限公司 | Transmission apparatus, signal transmitting control method and control apparatus thereof in microwave system |
| CN101582839A (en) * | 2008-05-14 | 2009-11-18 | 华为技术有限公司 | Method, device and system for regulating data traffic |
| CN102035718A (en) * | 2009-09-27 | 2011-04-27 | 中国移动通信集团公司 | Method, device and system for protection switching of packet transport network |
| CN102098198A (en) * | 2010-12-31 | 2011-06-15 | 北京华环电子股份有限公司 | Ethernet protection method and device |
| CN102480764A (en) * | 2010-11-30 | 2012-05-30 | 北京创毅视讯科技有限公司 | Data transmission method of wireless communication terminal and wireless communication terminal |
| CN102843725A (en) * | 2012-08-15 | 2012-12-26 | 无锡北邮感知技术产业研究院有限公司 | Data transmission method and data transmission device |
| CN103684811A (en) * | 2012-08-31 | 2014-03-26 | 中兴通讯股份有限公司 | Service protection method and system of composite link |
-
2014
- 2014-10-22 CN CN201410569315.8A patent/CN105591772A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582839A (en) * | 2008-05-14 | 2009-11-18 | 华为技术有限公司 | Method, device and system for regulating data traffic |
| CN101291160A (en) * | 2008-05-30 | 2008-10-22 | 京信通信系统（中国）有限公司 | Backup system for microwave optical fiber link and backup method thereof |
| CN101478815A (en) * | 2008-12-15 | 2009-07-08 | 华为技术有限公司 | Transmission apparatus, signal transmitting control method and control apparatus thereof in microwave system |
| CN102035718A (en) * | 2009-09-27 | 2011-04-27 | 中国移动通信集团公司 | Method, device and system for protection switching of packet transport network |
| CN102480764A (en) * | 2010-11-30 | 2012-05-30 | 北京创毅视讯科技有限公司 | Data transmission method of wireless communication terminal and wireless communication terminal |
| CN102098198A (en) * | 2010-12-31 | 2011-06-15 | 北京华环电子股份有限公司 | Ethernet protection method and device |
| CN102843725A (en) * | 2012-08-15 | 2012-12-26 | 无锡北邮感知技术产业研究院有限公司 | Data transmission method and data transmission device |
| CN103684811A (en) * | 2012-08-31 | 2014-03-26 | 中兴通讯股份有限公司 | Service protection method and system of composite link |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656311A (en) * | 2016-12-15 | 2017-05-10 | 国网山东省电力公司长岛县供电公司 | Data link backup apparatus and method |
| CN112822102A (en) * | 2020-12-30 | 2021-05-18 | 瑞斯康达科技发展股份有限公司 | Link switching method, device, equipment, system and storage medium |
| CN112822102B (en) * | 2020-12-30 | 2023-01-24 | 瑞斯康达科技发展股份有限公司 | Link switching method, device, equipment, system and storage medium |
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