CN109005081A - A kind of packet loss automatic checkout system and method - Google Patents
A kind of packet loss automatic checkout system and method Download PDFInfo
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- CN109005081A CN109005081A CN201810706062.2A CN201810706062A CN109005081A CN 109005081 A CN109005081 A CN 109005081A CN 201810706062 A CN201810706062 A CN 201810706062A CN 109005081 A CN109005081 A CN 109005081A
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- message
- packet loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0847—Transmission error
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention relates to a kind of packet loss automatic checkout system and methods, the system includes packet storage module, SN locating module, packet check module and logger module, the packet storage module and SN locating module be located at on the communication board of external equipment physical connection；The packet check module and logger module are located on the multiple message processing modules of logic card；After the SN locating module positions successfully, the packet check module and logger module are triggered.Compared with prior art, the present invention has many advantages, such as that automation, application range are wider.
Description
Technical field
The present invention relates to packet loss detection fields, more particularly, to a kind of packet loss automatic checkout system and method.
Background technique
In order to improve reusability, more and more systems use application+platform framework, and platform is to operate on it
It parses, is supplied to after protocol processes by the message received from external equipment by filtering using the communication provided with external equipment
Upper layer application.Pass through network, interchanger among this, the multiple hardware devices of network interface card drive, the multiple resume modules of platform software, often
A link is likely to that message packet loss occurs, and in turn results in communication disruption, influences system operation.
If needing first to be confirmed whether that packet loss occurs, there is an urgent need to one kind when communication disruption really occurs in system operation
Automatic method for detecting packet loss is quickly confirmed whether packet loss, packet loss link and reason.
Currently, packet loss detection is all to dispose packet capturing environment at the scene by means of packet catcher, a large amount of communication bag point is collected
Analysis, in conjunction with system log, process is cumbersome, and if it is internal system packet loss, location difficulty.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of packet losses to detect automatically
System and method.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of packet loss automatic checkout system, the system are connect with communication board and logic card respectively, which includes that message is deposited
Storage module, SN locating module, packet check module and logger module, the packet storage module and SN locating module are set
With on the communication board of external equipment physical connection；It is multiple that the packet check module and logger module are located at logic card
On message processing module；After the SN locating module positions successfully, the packet check module and logger module quilt
Triggering.
Preferably, the action of the packet storage module includes: that the packet storage module is each from outside
After channel reception to data, different spaces are stored separately, packet storage number reaches preset value and then triggers SN locating module, if
The SN locating module positions failure, and the packet storage module continues to store message until being successfully found SN or surpassing
When.
Preferably, the action of the SN locating module includes: traversal storing data, find meet increasing sequence and
Summation is equal to the position SN of fixed value, records the position SN and current SN value, SN locator value is labeled as successfully.
Preferably, the action of the packet check module includes: that identification SN successfully learns to identify, to message SN value
Continuity checked.
Preferably, the action of the logger module includes: when discovery SN value exception alarm, and by module
The information such as name, channel number and sequence number are recorded convenient for fault location.
A kind of method of the packet loss automatic checkout system, comprising the following steps:
Step 1 after receiving data from some external channel, first stores data, message number reaches preset value
SN positioning is carried out afterwards；
Step 2, the storing data for scanning default size from message header are bit each, if find it is bit legal,
Then terminate SN study, and identify Success Flag, records the position SN and SN current value, and execute step 3；Otherwise 1 is gone to step；
If step 3, SN study are identified as success, by the SN value for the message package being successfully received and last time receive SN value into
Row compares, and communications are normal if continuous；Message repeats if SN value is identical；Other situations are then out-of-order or packet loss, are turned
Step 4；
Step 4: triggering log module, record detection failure information；
Step 5: no matter learn or SN detects whether success, it will will be from the stream compression that receives of outside to next mould
Block processing, and finally submit to upper layer application.
Preferably, the method can also be used to externally export the message detection in process.
Preferably, the method can also be used in system communication performance test.
Preferably, the rule of the SN value is not limited to increasing sequence.
Compared with prior art, the invention has the following advantages that
1, it automates: losing, repeat in transmission process when message occurs, when random ordering even postpones, automatic alarm
And misregistration information, it is convenient for malfunction elimination and analyzing and positioning.
2, application range is wider: without additional ancillary equipment, in either external transmission or system for content；Regardless of
It is to be disappeared by network or serial ports, as long as CAN bus transmission meets rule and can apply；Even if not being inconsistent normally, testing
In can also simulate and be responsible for the data of rule to verify the lossless transmitting of each environmental data stream of system.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention；
Fig. 2 is flow chart of the method for the present invention.
Specific embodiment
Technical solution in the embodiment of the present invention is carried out below clear, is fully described by, it is clear that described implementation
Example is a part of the embodiments of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work all should belong to the model that the present invention protects
It encloses.
The principle of the present invention: designing according to system, and the message packet in each channel connection can include a sequence number,
Every transmission a piece of news value is incremented by, and is added to maximum value from initial value, then add up again from 0.Thus determine the sequence number most
The numerical value (SN) of the latter bit will appear the increasing sequence from 0 to 255.According to this rule 256 packet message packet of traversal, navigate to
The position of SN and record current value.If successfully SN is arrived in study, inspection current SN value is passed through for the message packet received later
With the continuity of the SN value of last time, judge whether SN value is correct:
If current SN value is being incremented by for last time SN value, including the two kinds of situations of overturning to add up with maximum value, then SN is being determined just
Really, then by two message time differences determine whether communication is normal；
If the two numerical value are equal, it can determine that and receive repetition message message；
If the two values neither be incremented by relationship again unequal, decision message message loss or random ordering.
If losing it was found that message packet repeats, out-of-order, communication abnormality is then thought in delay, alarms and records key message use
In fault location.It needs to collect message at external message ingress, positions SN, mark SN successfully learns mark and position, cocurrent
Whether it is abnormal according to SN information come confirmation message transmission to after internal system.
As shown in Figure 1, the present invention includes communication message memory module, SN locating module, packet check module, log recording
Four part of module, wherein packet storage and SN position two modules and are deployed on the communication board being physically connected to external equipment outside i.e.
At portion's Data entries；In addition to communication board, packet check module and log recording are deployed in the multiple message processing modules of logic card
Module, after SN is positioned successfully, the two modules can just be triggered.
As shown in Fig. 2, being applied to field failure record location, SN value rule for the message detection in external input process
Then it is increasing sequence, is the method flow of the invention of embodiment:
Step 1: after receiving message packet from external equipment, the message classification of different interface channels being stored, stores number
Mesh reaches 256 and then goes to step 2；If system internal message processing module then goes to step 3；
Step 2: 256 communication messages of traversal are scanned as unit of the position the Bit of data content, are looked for according to preset value
It is bit regular to meeting, i.e. SN.If successfully learning to after SN, success flag is identified, the position SN goes to step 3, otherwise goes to step
1, wherein if attempting to abandon learning if repeatedly number all fails；
Step 3: if SN study is identified as success, by the SN value for the message package being successfully received and last time receive SN value into
Row compares, and communications are normal if continuous；Message repeats if SN value is identical；Other situations are then out-of-order or packet loss, are turned
Step 4；
Step 4: triggering log module, record detection failure information；
Step 5: no matter learn or SN detects whether success, it will will be from the stream compression that receives of outside to next mould
Block processing, and finally submit to upper layer application.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection scope subject to.
Claims (9)
1. a kind of packet loss automatic checkout system, the system are connect with communication board and logic card respectively, which is characterized in that the system packet
Packet storage module, SN locating module, packet check module and logger module are included, the packet storage module and SN are fixed
Position module be located at on the communication board of external equipment physical connection；The packet check module and logger module, which are located at, patrols
It collects on the multiple message processing modules of plate；After the SN locating module positions successfully, the packet check module and log note
Record module is triggered.
2. a kind of packet loss automatic checkout system according to claim 1, which is characterized in that the packet storage module
Action includes: the packet storage module after external each channel reception to data, is stored separately different spaces,
Packet storage number reaches preset value and then triggers SN locating module, if the SN locating module positions failure, the message
Memory module continues to store message until being successfully found SN or time-out.
3. a kind of packet loss automatic checkout system according to claim 1, which is characterized in that the work of the SN locating module
Include: traversal storing data as content, find and meet the position SN that increasing sequence and summation are equal to fixed value, the record position SN and
SN locator value is labeled as successfully by current SN value.
4. a kind of packet loss automatic checkout system according to claim 1, which is characterized in that the packet check module
Action includes: that identification SN successfully learns to identify, and is checked the continuity of message SN value.
5. a kind of packet loss automatic checkout system according to claim 1, which is characterized in that the logger module
Action includes: to work as discovery SN value exception alarm, and the information such as module name, channel number and sequence number are recorded and are convenient for
Fault location.
6. a kind of method using the packet loss automatic checkout system any in Claims 1 to 5, which is characterized in that including
Following steps:
Step 1 after receiving data from some external channel, first stores data, it is laggard that message number reaches preset value
Row SN positioning；
Step 2, the storing data for scanning default size from message header are bit each, if finding bit legal, tie
Beam SN study, and Success Flag is identified, the position SN and SN current value are recorded, and execute step 3；Otherwise 1 is gone to step；
If step 3, SN study are identified as success, SN value and the last time of the message package being successfully received are received into SN value and compared
Compared with communications are normal if continuous；Message repeats if SN value is identical；Other situations are then out-of-order or packet loss, are gone to step
4；
Step 4: triggering log module, record detection failure information；
Step 5: no matter learn or SN detects whether success, it will be by the stream compression received from outside to from next module
Reason, and finally submit to upper layer application.
7. according to the method described in claim 6, it is characterized in that, the method can also be used to externally export disappearing in process
Breath detection.
8. according to the method described in claim 6, it is characterized in that, the method can also be used in system communication performance test.
9. according to the method described in claim 6, it is characterized in that, the rule of the SN value is not limited to increasing sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706062.2A CN109005081B (en) | 2018-06-26 | 2018-06-26 | System and method for automatically detecting packet loss |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706062.2A CN109005081B (en) | 2018-06-26 | 2018-06-26 | System and method for automatically detecting packet loss |
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| Publication Number | Publication Date |
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| CN109005081A true CN109005081A (en) | 2018-12-14 |
| CN109005081B CN109005081B (en) | 2022-09-23 |
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| CN201810706062.2A Active CN109005081B (en) | 2018-06-26 | 2018-06-26 | System and method for automatically detecting packet loss |
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Cited By (3)
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| CN110095711A (en) * | 2019-05-06 | 2019-08-06 | 盛科网络（苏州）有限公司 | A kind of verification method based on test vector random ordering and discarding behavior |
| CN114113859A (en) * | 2021-11-29 | 2022-03-01 | 一汽奔腾轿车有限公司 | Electrical function testing device and testing method for automobile combination instrument |
| CN114338466A (en) * | 2021-12-21 | 2022-04-12 | 卡斯柯信号有限公司 | Self-adaptive packet loss detection method |
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| CN110095711B (en) * | 2019-05-06 | 2021-10-15 | 苏州盛科通信股份有限公司 | Verification method based on test vector out-of-order and discarding behavior |
| CN114113859A (en) * | 2021-11-29 | 2022-03-01 | 一汽奔腾轿车有限公司 | Electrical function testing device and testing method for automobile combination instrument |
| CN114338466A (en) * | 2021-12-21 | 2022-04-12 | 卡斯柯信号有限公司 | Self-adaptive packet loss detection method |
| CN114338466B (en) * | 2021-12-21 | 2023-10-31 | 卡斯柯信号有限公司 | Self-adaptive packet loss detection method |
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