CN103166738A - Device and method for measuring double-terminal frame loss - Google Patents
Device and method for measuring double-terminal frame loss Download PDFInfo
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Abstract
The invention discloses a device and a method for measuring double-terminal frame loss. The device comprises a field-programmable gate array (FPGA) module and a double-terminal frame loss measurement (D-LM) module, wherein the FPGA module is used for extracting frame counting numerical values carried in TxFCf, RxFCb and TxFCb fields from a speedy CCM frame sent by far-terminal equipment, and sending the frame counting numerical values to the D-LM module; and the D-LM module is used for using the received frame counting numerical values carried in the TxFCf, RxFCb and TxFCb fields, and carrying out home-terminal and far-terminal frame loss measurements. By means of high treatment performance of the FPGA, high-precision double-terminal frame loss measurement based on the speedy CCM frame can be achieved.
Description
Technical field
The present invention relates to communications industry terminal access technology field, relate in particular to a kind of device and method of measuring the both-end LOF.
Background technology
The both-end LOF is measured (Dual-ended ETH-LM is called for short DLM) function and is based on the Y.1731 basic function of standard of the ITU-T of International Telecommunications Union.After having configured correct maintenance entity group (Maintenance Entity Group, abbreviated as MEG) and having safeguarded boundary point (Maintenance End Point is called for short MEP), the basic principle that the both-end LOF is measured is as follows:
MEP is to the both-end frame (Continuity Check Message be called for short CCM frame) of its reciprocity opposite end MEP transmission with ETH-LM information, and the CCM frame that also receives with ETH-LM information from its reciprocity opposite end MEP simultaneously carries out both-end LOF measurement.The both-end LOF is measured by either party MEP that sends the CCM frame and is initiated and be responsible for LOF and calculate, and TxFCf, RxFCb, TxFCb field and local frame count pick up device value in 2 CCM frames that either party MEP receives continuously according to front and back calculate local terminal LOF and distal frame loss.Wherein, the numerical value of the value representation of TxFCf field local counter TxFCl when the CCM frame transmits; The numerical value of the value representation of RxFCb field local counter RxFCl when receiving last CCM frame from reciprocity MEP; The numerical value of the TxFCf of the value representation of TxFCb field last the CCM frame that receives from reciprocity MEP.
Fig. 1 is the frame structure schematic diagram of prior art CCM frame.In a CCM frame, the value representation MEG grade of MEL field; The Version field represents version information, and numerical value is always 0; The OpCode field represents CCM PDU types value; The Flags field is marker bit; TLV Offset field represents TLV (Type-Length-Value, type lengths values) bias, fixedly is set to 70; Sequence Number field represents sequence number, and the value of this field is set to complete zero; The value of MEP id field is the integer value of 13 bits, is used for the MEP that identification MEG sends; The MEG id field is the field of 48 bytes; TxFCf, TxFCb, RxFCb field are the integer value of 4 bytes, the sample value of the frame counter that it makes zero with meeting, and these fields are not the used time is set to complete zero; The Reserved field is reserved field, usually is set to complete zero; End TLV field is end of a period TLV.
But there is following defective in prior art: rely on merely CPU (Central Processing Unit, central processing unit) and can't realize high-precision measurement to the both-end LOF based on quick CCM frame (its transmission cycle is no more than 100 milliseconds).
Summary of the invention
Main purpose of the present invention is to provide a kind of device and method of measuring the both-end LOF, can't realize to the both-end LOF based on quick CCM frame high-precision measurement problem to solve above-mentioned simple dependence CPU.
For addressing the above problem, the invention provides a kind of device of measuring the both-end LOF, comprising:
The quick CCM frame that field programmable gate array (FPGA) module is used for sending from remote equipment extracts the frame count numerical value that carries TxFCf, RxFCb and TxFCb field, and sends to the both-end LOF to measure (D-LM) module;
The frame count numerical value that described D-LM module be used for to use the described TxFCf, the RxFCb that receive and TxFCb field to carry carries out the LOF of local terminal and far-end and measures.
Further,
The frame count numerical value that described D-LM module be used for to use the described TxFCf, the RxFCb that receive and TxFCb field to carry carries out the LOF of local terminal and far-end and measures, and specifically comprises:
Before and after the LOF of described far-end equals, the absolute value of the difference of the absolute value of the difference of the double TxFCb that receives and the double RxFCb that receives in front and back is poor;
Before and after the LOF of described local terminal equals, the absolute value of the difference of the absolute value of the difference of the double TxFCf that receives and the double RxFCl that receives in front and back is poor.
Further,
Described D-LM module is also for generation of the frame count numerical value of filling TxFCf, RxFCb and TxFCb field in quick CCM frame, and sends to described FPGA module;
Described FPGA module after also being used for assembling quick CCM frame and the described frame count numerical value that described D-LM module is sent correspondingly being filled into TxFCf, the RxFCb and TxFCb field of this quick CCM frame sends described quick CCM frame.
Further,
Described D-LM module also for generation of the frame count numerical value of TxFCf, RxFCb and TxFCb field in the quick CCM frame of filling, specifically comprises:
Described D-LM is used for after receiving the solicited message that described FPGA module is sent, the frame count numerical value of TxFCf, RxFCb and TxFCb field in the quick CCM frame of generation filling.
Further, described device also comprises:
Driver module is used for transmitting frame count numerical value and configuration information between described D-LM module and described FPGA module; Wherein, described configuration information is described FPGA module required configuration parameter information when starting.
Correspondingly, the present invention also provides a kind of method of measuring the both-end LOF, is applied to comprise in the equipment of field programmable gate array (FPGA) module and both-end LOF measurement (D-LM) module, comprising:
Described FPGA module extracts the frame count numerical value that carries in TxFCf, RxFCb and TxFCb field from the quick CCM frame that remote equipment is sent, and sends to described D-LM module;
The frame count numerical value that carries in described TxFCf, the RxFCb that described D-LM module use receives and TxFCb field carries out the LOF of local terminal and far-end and measures.
Further,
The frame count numerical value that carries in described TxFCf, the RxFCb that described D-LM module use receives and TxFCb field carries out the LOF of local terminal and far-end and measures, and specifically comprises:
Before and after the LOF of described far-end equals, the absolute value of the difference of the absolute value of the difference of the double TxFCb that receives and the double RxFCb that receives in front and back is poor;
Before and after the LOF of described local terminal equals, the absolute value of the difference of the absolute value of the difference of the double TxFCf that receives and the double RxFCl that receives in front and back is poor.
Further, described method also comprises:
The frame count numerical value of TxFCf, RxFCb and TxFCb field in the quick CCM frame of described D-LM module generation filling, and send to described FPGA module;
The quick CCM frame of described FPGA module assembled and the described frame count numerical value that described D-LM module is sent correspondingly is filled into TxFCf, RxFCb and TxFCb field in this quick CCM frame after, described quick CCM frame is sent.
Further,
The frame count numerical value of TxFCf, RxFCb and TxFCb field in the quick CCM frame of described D-LM module generation filling specifically comprises:
Described D-LM produce to fill the frame count numerical value of TxFCf, RxFCb and TxFCb field in quick CCM frame after receiving the solicited message that described FPGA module is sent.
After adopting the present invention, by the high handling property of field programmable gate array (Field-Programmable Gate Array is referred to as FPGA), can realize the both-end LOF measurement based on quick CCM frame that precision is higher.
Description of drawings
Fig. 1 is the frame structure schematic diagram of prior art CCM frame;
Fig. 2 is the schematic diagram according to apparatus of the present invention embodiment one both-end LOF measurement mechanism;
Fig. 3 is the schematic diagram of system according to the invention embodiment one both-end LOF measuring system;
Fig. 4 is the flow chart according to the inventive method embodiment one both-end LOF method of measurement;
Fig. 5 is the flow chart according to FPGA resume module in the inventive method embodiment two both-end LOF method of measurement;
Fig. 6 is the flow chart according to D-LM resume module in the inventive method embodiment two both-end LOF method of measurement.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.
Field programmable gate array (Field-Programmable Gate Array, referred to as FPGA) performance of processing message will be higher than the handling property of common CP U, due to the category that belongs to hardware handles, realize in physical layer, therefore can be good at satisfying rapid message is carried out the in time requirement of processing.The present embodiment is realized high-precision both-end LOF measurement based on quick CCM frame based on the FPGA module, can correctly reflect the Internet Transmission quality between current measured node equipment.
In the present embodiment, a kind of device of measuring the both-end LOF comprises: D-LM module and FPGA module.Wherein,
The quick CCM frame that the FPGA module is used for sending from opposite end MEP extracts the frame count numerical value that carries field TxFCf, RxFCb and TxFCb, and sends to the D-LM module; After also can be used for assembling quick CCM frame and be TxFCf, RxFCb and TxFCb field infilled frame count value in this frame, should send by quick CCM frame;
The frame count numerical value that the D-LM module be used for to use the field TxFCf, the RxFCb that receive and TxFCb to carry carries out the LOF of local terminal and far-end and measures; Also for generation of the frame count numerical value of filling TxFCf, RxFCb and TxFCb field in the CCM frame, and send to the FPGA module;
In addition, can also comprise in said apparatus: driver module is used for transferring frames count value and configuration information between D-LM module and FPGA module; Wherein, comprise in this configuration information: the FPGA module starts required configuration parameter information.
In embodiments of the present invention, a kind of both-end LOF measuring system, comprise local device and opposite equip., local device is connected by network with opposite equip., include FPGA module and D-LM module in local device and opposite equip., wherein: local terminal D-LM module or opposite end D-LM module, be respectively used to produce the frame count numerical value of filling the field such as TxFCf, RxFCb and TxFCb in quick CCM frame, send to the FPGA module in same equipment; Local terminal FPGA module or opposite end FPGA module after being respectively used to assemble quick CCM frame and filling the frame count numerical value of the fields such as TxFCf, RxFCb and TxFCb in this frame, send quick CCM frame; Local terminal D-LM module or opposite end D-LM module also are respectively used to use the frame count numerical value such as TxFCf, RxFCb and TxFCb in the quick CCM frame that receives, and carry out the LOF of local terminal and far-end and measure; Local terminal FPGA module or opposite end FPGA module also are respectively used to resolve the quick CCM frame that other MEP send and therefrom extract frame count numerical value in field TxFCf, RxFCb and TxFCb, and send to the D-LM module in unified equipment.
In the present embodiment, a kind of both-end LOF method of measurement, completed by local terminal and opposite end, local terminal and opposite end include FPGA module and D-LM module, wherein: local terminal D-LM module or opposite end D-LM module produce respectively the frame count numerical value of filling TxFCf, RxFCb and TxFCb field in quick CCM frame, and send to the FPGA module by driver module; Local terminal FPGA module or opposite end FPGA module after assembling quick CCM frame and be TxFCf, the RxFCb and TxFCb field infilled frame count information in this frame, send quick CCM frame; Local terminal D-LM module or opposite end D-LM module are also used to receive the frame count numerical value such as TxFCf, RxFCb and TxFCb in the quick CCM frame that the FPGA module sends, and carry out the LOF of local terminal and far-end to measure; Local terminal FPGA module or opposite end FPGA module, the frame count numerical value that the quick CCM frame that parsing receives from other MEP also therefrom extracts TxFCf, RxFCb and TxFCb field sends to D-LM module separately.
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.The below is described in further detail implementation method of the present invention.
Device embodiment one:
Fig. 2 is the schematic diagram according to apparatus of the present invention embodiment one measuring frame delay device.As shown in Figure 2, in the present embodiment, both-end LOF measurement mechanism comprises: D-LM module 201 is measured in the both-end LOF, for generation of the frame count numerical value of the Related fields such as TxFCf, RxFCb and TxFCb in quick CCM frame; FPGA module 202 after being used for assembling quick CCM frame and filling wherein the count area such as TxFCf, RxFCb and TxFCb, sends quick CCM frame; D-LM module 201 also be used for to be used the frame count numerical value such as the quick CCM frame TxFCf, the RxFCb that receive and TxFCb, carries out the LOF of local terminal and far-end to measure; FPGA module 202 after also being used for the quick CCM frame that opposite end MEP sends is resolved and therefrom extracted the frame count numerical value such as TxFCf, RxFCb and TxFCb, is issued D-LM module 201.
In the present embodiment, the measuring frame delay device can also comprise: driver module, and for the frame count data between D-LM module and FPGA module and the transmission of configuration information.
The present embodiment is realized high-precision both-end LOF measurement based on quick CCM frame based on the high handling property of hardware FPGA, having overcome in the prior art the simple CPU of dependence can't realize the problem of high-acruracy survey to the both-end LOF based on quick CCM frame (its transmission cycle equals lower than 100 milliseconds), thereby can accurately reflect Internet Transmission quality between current measured node equipment.
System embodiment one:
For both-end LOF is each time measured, must be completed by the equipment cooperation at two ends.Fig. 3 is the schematic diagram of system according to the invention embodiment one measuring frame delay system.As shown in Figure 3, in the present embodiment, both-end LOF measuring system comprises local terminal 301 and opposite end 302, and local terminal 301 is connected by network with opposite end 302.
Local terminal 301 and opposite end 302 include FPGA module and D-LM module, wherein: and local terminal D-LM module, for generation of the frame count numerical value of the Related fields such as TxFCf, RxFCb and TxFCb in quick CCM frame; Local terminal or opposite end FPGA module after assembling quick CCM frame and filling wherein the count area such as TxFCf, RxFCb and TxFCb, send quick CCM frame; Local terminal or opposite end D-LM module also be used for to be used the frame count numerical value such as the quick CCM frame TxFCf, the RxFCb that receive and TxFCb, carry out the LOF of local terminal and far-end to measure; Local terminal or opposite end FPGA module also be used for to be resolved the quick CCM frame that receives from opposite end MEP and are therefrom extracted the frame count numerical value such as TxFCf, RxFCb and TxFCb to D-LM module separately.
In the present embodiment, local terminal D-LM module and opposite end D-LM module also are used for maintenance entity group MEG and the parameter configuration of safeguarding boundary point MEP respectively, and configuration parameter is converted into list item corresponding to corresponding FPGA, and start both-end LOF measurement function.Local terminal driver module and opposite end driver module are used for carrying out respectively frame count data and the configuration parameter transmission of corresponding FPGA module and D-LM module, the FPGA module that initialization is corresponding.
In the present embodiment, supporting arbitrarily ITU-T Y.1731 all can carry out high-precision both-end LOF between the equipment of standard measures, correctly reflect Internet Transmission quality between current measured node equipment, solved the technical barrier that traditional simple dependence CPU carries out certainty of measurement deficiency under both-end LOF metering system.
Embodiment of the method one:
In the present embodiment, realize the device of both-end LOF measurement (Dual-Ended ETH-LM) function during ITU-T Y.1731, comprising: the FPGA module: mainly be embodied as at sending direction and carry out the assembling of CCM frame and send; Carrying out the CCM frame at receive direction resolves.D-LM module: produce the frame count numerical value of the Related fields such as TxFCf, RxFCb and TxFCb in quick CCM frame at sending direction, and notify the FPGA module by driver module; Process the frame count numerical value that interrupts reporting by driver module at receive direction, complete both-end LOF measurement function.Driver module: be used for FPGA module and the intercommunication of D-LM module, the configuration information under the D-LM module is converted to list item corresponding to FPGA; The frame statistical information that the D-LM module is issued is transmitted to the FPGA module; The frame statistical information that FPGA parses from the CCM frame is processed by interrupt notification D-LM module;
Fig. 4 is the flow chart according to the inventive method embodiment one both-end LOF method of measurement.As shown in Figure 4, the present embodiment comprises:
Step S401, local terminal and opposite end D-LM module generate and are used for filling the frame count numerical value of the Related fields such as quick CCM frame TxFCf, RxFCb and TxFCb, and send to the FPGA module by driver module;
Step S402, local terminal and opposite end FPGA module send quick CCM frame after assembling respectively quick CCM frame and filling wherein the count area such as TxFCf, RxFCb and TxFCb;
Step S403, opposite end and local terminal FPGA module are resolved respectively the quick CCM frame that receives from opposite end MEP and are also therefrom extracted the frame count numerical value such as TxFCf, RxFCb and TxFCb, send to D-LM module separately by driver module;
Step S404, the frame count numerical value such as TxFCf, the RxFCb that opposite end and local terminal D-LM module use driver module report by interruption and TxFCb carry out the LOF of local terminal and far-end and measure.
Specifically, from the complete angle of technical scheme, the present embodiment can comprise: 1) the D-LM module is responsible for generating the frame count numerical value for filling the Related fields such as quick CCM frame TxFCf, RxFCb and TxFCb, sends to FPGA to process by driver module; 2) after the quick CCM frame of FPGA assembling and the technical information of using the D-LM module to provide are filled wherein the count area such as TxFCf, RxFCb and TxFCb, send quick CCM frame; 3) the D-LM module is completed the both-end LOF and is measured calculating.
Embodiment of the method two:
In the present embodiment, in connection with device embodiment one, system embodiment one is elaborated to two frame LOF method of measurement.In like manner, each feature in the present embodiment both-end LOF method of measurement equally also can be applicable to said apparatus embodiment and system embodiment.
The present embodiment will describe from FPGA module and D-LM module, realize high-precision both-end LOF method of measurement based on the FPGA module, and its function is realized by driver module jointly by FPGA module and D-LM module.
Fig. 5 is the flow chart according to FPGA resume module in the inventive method embodiment two both-end LOF method of measurement.As shown in Figure 5, FPGA resume module flow process comprises:
Step S501:D-LM module is put 1 by driver module with the CCM transmitter register in the FPGA module and both-end LOF register as required and is enabled, FPGA assembles quick CCM frame, notify the D-LM module by driver module with interrupt mode simultaneously, obtain the frame count numerical value of filling the Related fields such as TxFCf, RxFCb and TxFCb quick CCM frame from this D-LM module;
After step S502:FPGA module gets the frame count statistical value by driver module from the D-LM module, at first in the quick CCM frame that has assembled in filling step S501, the fields such as TxFCf, RxFCb and TxFCb, be sent to opposite end MEP by network with the CCM frame at last;
After step S503:FPGA module receives quick CCM frame from opposite end MEP, judge at first in CCM frame structure (as accompanying drawing 1), whether the OpCode field is 1, if so, turns step S504; Otherwise, abandon;
Step S504:FPGA module parses CCM frame carries out legitimacy to the CCM frame and detects, if after detection is passed through, turn step S505; Otherwise, abandon;
Step S505:FPGA module continues to resolve the CCM frame, extracts the frame count static fields such as TxFCf, RxFCb and TxFCb in frame, with interrupt mode, these field contents is reported the D-LM module by driver module.
Fig. 6 is the flow chart according to D-LM resume module in the inventive method embodiment two both-end LOF method of measurement.As shown in Figure 6, D-LM resume module flow process comprises:
The MEG that step S601:D-LM block configuration is correct and MEP are converted to list item corresponding to FPGA by driver module with relevant configuration, enable the CCM frame and send and both-end LOF measurement function;
After step S602:D-LM module receives that driver module obtains the interrupt message of the frame count statistical value of filling the Related fields such as quick CCM frame TxFCf, RxFCb and TxFCb for the FPGA module, produce corresponding frame count numerical value, and return to the FPGA module by driver module;
After step S603:D-LM module is received the interrupt message of the fields such as TxFCf, RxFCb in the quick CCM frame that the opposite end MEP that parses with FPGA that driver module reports sends and TxFCb, judge whether this interrupt message is to report for the first time, if, the field contents such as TxFCf, RxFCb and TxFCb are preserved as initial statistical value, simultaneously as last statistical value; Otherwise, turn step S604;
The last statistical value of preserving in the field such as the TxFCf in interrupt message, RxFCb and TxFCb and this module is calculated local terminal according to following formula to step S604:D-LM module and distal frame is lost; Simultaneously the field contents such as this TxFCf, RxFCb and TxFCb are preserved as last statistical value;
Frame Loss (far-end)=| TxFCb[this]-TxFCb[is last] |-| RxFCb[this]-RxFCb[is last] |
Frame Los (local terminal)=| TxFCf[this]-TxFCfI is last] |-| RxFCl[this]-RxFCl[is last] |
In the present embodiment, supporting arbitrarily ITU-T Y.1731 can carry out high-precision both-end frame packet loss based on quick CCM frame between the equipment of standard measures, correctly reflected Internet Transmission quality between current measured node equipment, solved simple dependence CPU and can't realize to the both-end LOF based on quick CCM frame (its transmission cycle equals lower than 100 milliseconds) technical barrier of high-acruracy survey.
One of ordinary skill in the art will appreciate that all or part of step in said method can come the instruction related hardware to complete by program, described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The above is only the preferred embodiments of the present invention, is not for limiting protection scope of the present invention.According to summary of the invention of the present invention; also other various embodiments can be arranged; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion; within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (9)
1. device of measuring the both-end LOF comprises:
The quick CCM frame that field programmable gate array (FPGA) module is used for sending from remote equipment extracts the frame count numerical value that carries TxFCf, RxFCb and TxFCb field, and sends to the both-end LOF to measure (D-LM) module;
The frame count numerical value that described D-LM module be used for to use the described TxFCf, the RxFCb that receive and TxFCb field to carry carries out the LOF of local terminal and far-end and measures.
2. device as claimed in claim 1 is characterized in that:
The frame count numerical value that described D-LM module be used for to use the described TxFCf, the RxFCb that receive and TxFCb field to carry carries out the LOF of local terminal and far-end and measures, and specifically comprises:
Before and after the LOF of described far-end equals, the absolute value of the difference of the absolute value of the difference of the double TxFCb that receives and the double RxFCb that receives in front and back is poor;
Before and after the LOF of described local terminal equals, the absolute value of the difference of the absolute value of the difference of the double TxFCf that receives and the double RxFCl that receives in front and back is poor.
3. device as claimed in claim 1 is characterized in that:
Described D-LM module is also for generation of the frame count numerical value of filling TxFCf, RxFCb and TxFCb field in quick CCM frame, and sends to described FPGA module;
Described FPGA module after also being used for assembling quick CCM frame and the described frame count numerical value that described D-LM module is sent correspondingly being filled into TxFCf, the RxFCb and TxFCb field of this quick CCM frame sends described quick CCM frame.
4. device as claimed in claim 3 is characterized in that:
Described D-LM module also for generation of the frame count numerical value of TxFCf, RxFCb and TxFCb field in the quick CCM frame of filling, specifically comprises:
Described D-LM is used for after receiving the solicited message that described FPGA module is sent, the frame count numerical value of TxFCf, RxFCb and TxFCb field in the quick CCM frame of generation filling.
5. device as described in any one in claim 1～4, is characterized in that, also comprises:
Driver module is used for transmitting frame count numerical value and configuration information between described D-LM module and described FPGA module; Wherein, described configuration information is described FPGA module required configuration parameter information when starting.
6. a method of measuring the both-end LOF, be applied to comprise in the equipment of field programmable gate array (FPGA) module and both-end LOF measurement (D-LM) module, comprising:
Described FPGA module extracts the frame count numerical value that carries in TxFCf, RxFCb and TxFCb field from the quick CCM frame that remote equipment is sent, and sends to described D-LM module;
The frame count numerical value that carries in described TxFCf, the RxFCb that described D-LM module use receives and TxFCb field carries out the LOF of local terminal and far-end and measures.
7. method as claimed in claim 6 is characterized in that:
The frame count numerical value that carries in described TxFCf, the RxFCb that described D-LM module use receives and TxFCb field carries out the LOF of local terminal and far-end and measures, and specifically comprises:
Before and after the LOF of described far-end equals, the absolute value of the difference of the absolute value of the difference of the double TxFCb that receives and the double RxFCb that receives in front and back is poor;
Before and after the LOF of described local terminal equals, the absolute value of the difference of the absolute value of the difference of the double TxFCf that receives and the double RxFCl that receives in front and back is poor.
8. method as claimed in claim 6, is characterized in that, also comprises:
The frame count numerical value of TxFCf, RxFCb and TxFCb field in the quick CCM frame of described D-LM module generation filling, and send to described FPGA module;
The quick CCM frame of described FPGA module assembled and the described frame count numerical value that described D-LM module is sent correspondingly is filled into TxFCf, RxFCb and TxFCb field in this quick CCM frame after, described quick CCM frame is sent.
9. method as claimed in claim 8 is characterized in that:
The frame count numerical value of TxFCf, RxFCb and TxFCb field in the quick CCM frame of described D-LM module generation filling specifically comprises:
Described D-LM produce to fill the frame count numerical value of TxFCf, RxFCb and TxFCb field in quick CCM frame after receiving the solicited message that described FPGA module is sent.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107864026A (en) * | 2016-09-22 | 2018-03-30 | 南京中兴软件有限责任公司 | Aggregated links LOF measurement apparatus and method |
| CN113691421A (en) * | 2021-08-27 | 2021-11-23 | 烽火通信科技股份有限公司 | Message generation method and device |
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| CN113691421B (en) * | 2021-08-27 | 2022-08-02 | 烽火通信科技股份有限公司 | Message generation method and device |
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