CN106878098A - The identifying processing method and device of data message - Google Patents
The identifying processing method and device of data message Download PDFInfo
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- CN106878098A CN106878098A CN201510916959.4A CN201510916959A CN106878098A CN 106878098 A CN106878098 A CN 106878098A CN 201510916959 A CN201510916959 A CN 201510916959A CN 106878098 A CN106878098 A CN 106878098A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
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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
- H04L43/04—Processing captured monitoring data, e.g. for logfile generation
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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
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
-
- 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
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
Abstract
The embodiment of the present invention provides a kind of identifying processing method of data message, according to the extraction deviant and mask that prestore, data to be compared is extracted from the data message for receiving；The data to be compared and the matched data for prestoring are carried out by matching treatment according to the match pattern for prestoring；When result is for matching, the protocol code of the data message is recognized.The embodiment of the present invention also provides a kind of recognition process unit of data message simultaneously.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of data message identifying processing method and device.
Background technology
Gigabit Passive Optical Network (Gigabit-capable Passive Optical Networks, GPON) is PON
Framework is most complete in technology, the most complete network technology of standard content, is largely used in access network.
The network-termination device of GPON -- optical network unit (Optical Network Unit, ONU) is GPON
One of acp chip of nest plate.The detection and treatment of the ether network packet of chip are very important links, are needed
Panoramic various messages in network are recognized, there are different processing modes for different messages.
The RM of existing unknown message format mainly has two kinds：One is to realize Ethernet report based on software
The detection and treatment of text；Two is based on three-state content addressing memory (Ternary Content Addressable
Memory, TCAM) realize the detection and treatment of ether network packet.
But, realize depending on central processing unit (Central Processing Unit, CPU) based on software
Process performance is, it is necessary to using multiple CPU core structures, can increase power consumption；And when being based on TCAM and realizing,
It is only used for equivalent matching, it is impossible to carry out non-equivalence and commensurate in scope, and for expanding packet form, most
A type of message can only be exported more, is then extracted and is given CPU treatment, it is impossible to obtain more information,
Allow hardware is complete to be processed message.
The content of the invention
In view of this, the embodiment of the present invention is expected to provide a kind of identifying processing method and device of data message,
With flexibly identification and processing data message, and lifting process performance.
What the technical scheme of the embodiment of the present invention was realized in：
A kind of identifying processing method of data message, methods described includes：
According to the extraction deviant and mask that prestore, data to be compared are extracted from the data message for receiving；
The data to be compared and the matched data for prestoring are carried out by matching treatment according to the match pattern for prestoring；
When result is for matching, the protocol code of the data message is recognized.
Method as described above, wherein, according to the extraction deviant and mask that prestore, from the data for receiving
Data to be compared are extracted in message, including：
Corresponding byte data is extracted from the data message according to the extraction deviant, by the byte
Data and the mask carry out with operation, obtain the data to be compared.
Method as described above, wherein, according to the match pattern for prestoring by the data to be compared with described
Matching treatment is carried out with data, including：
When the match pattern is more than the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are more than the matched data, the result is matching；
When the match pattern is less than the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are less than the matched data, the result is matching；
When the match pattern is equal to the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are equal to the matched data, the result is matching.
Method as described above, wherein, after the protocol code of the identification data message, the side
Method also includes：
Export the skew value information of the data message.
Method as described above, wherein, extraction deviant and mask that the basis prestores, from what is received
Before data to be compared are obtained in data message, methods described also includes：
Obtain protocol identification parameter simultaneously store, the protocol identification parameter include it is described extraction deviant, mask,
Match pattern and matched data.
A kind of recognition process unit of data message, described device includes：
Acquisition module, for according to the extraction deviant and mask for prestoring, being carried from the data message for receiving
Take data to be compared；
Matching module, for according to the match pattern that prestores by the data to be compared and the matched data for prestoring
Carry out matching treatment；
Identification module, during for the result in the matching module for matching, recognizes the data message
Protocol code.
Device as described above, wherein, the acquisition module specifically for：
Corresponding byte data is extracted from the data message according to the extraction deviant, by the byte
Data and the mask carry out with operation, obtain the data to be compared.
Device as described above, wherein, the matching module specifically for：
When the match pattern is more than the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are more than the matched data, the result is matching；
When the match pattern is less than the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are less than the matched data, the result is matching；
When the match pattern is equal to the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are equal to the matched data, the result is matching.
Device as described above, wherein, described device also includes：Output module, for exporting the data
The skew value information of message.
Device as described above, wherein, the acquisition module is additionally operable to：Obtain protocol identification parameter and store,
The protocol identification parameter includes the extraction deviant, mask, match pattern and matched data.
The identifying processing method and device of data message provided in an embodiment of the present invention, it is inclined according to the extraction for prestoring
Shifting value and mask, obtain data to be compared from the data message for receiving；Will according to the match pattern for prestoring
The data to be compared carry out matching treatment with the matched data for prestoring；When result is for matching, identification
The protocol code of the data message and corresponding treatment are acted.The embodiment of the present invention is recognized to data message
Afterwards, it is not to extract the data message to carry out software processing to CPU, but by the data message by forwarding
Path is sent in network, is significantly better than in performance and extracted to the mode of CPU.
Brief description of the drawings
Fig. 1 is the flow chart of the identifying processing method of the data message that the embodiment of the present invention one is provided；
Fig. 2 is the flow chart of the identifying processing method of the data message that the embodiment of the present invention two is provided；
Fig. 3 is the schematic diagram of unknown format message in the embodiment of the present invention；
Fig. 4 is the flow chart of the identifying processing method of unknown format message shown in Fig. 3 in the embodiment of the present invention；
Fig. 5 is the structural representation of the recognition process unit of data message provided in an embodiment of the present invention.
Specific embodiment
In the various embodiments of the invention, will recognize that the identification condition of newly-increased message is added dynamically to as needed
In ONU chips；After receiving data message, matching treatment is carried out with identification condition；If the match is successful,
Protocol code and the corresponding treatment action of the data message are then got, and exports the skew of the data message
Value information is used for subsequent treatment.Wherein, identification condition include greater than, equal to, less than etc. logical relation, bag
Containing mask so that matching condition is adapted to more situations；After matching, corresponding protocol code is exported；
The corresponding treatment action of the data message is obtained according to protocol code, and exports the deviant letter that bag treatment needs
Breath；So, it is not to extract the data message to carry out software processing to CPU after identification data message, and
Can be that the data message is sent in network by forwarding path, be significantly better than in performance extraction to
The mode of CPU.
Fig. 1 is the flow chart of the identifying processing method of the data message that the embodiment of the present invention one is provided, this implementation
The identifying processing method of the data message that example is provided can be performed by ONU chips, as shown in figure 1, this reality
The method for applying example offer can include：
Extraction deviant and mask that step 101, basis prestore, extract from the data message for receiving and treat
Compare data.
In this step, specifically, ONU chips can be according to the extraction deviant from the data message
Extract corresponding byte data, by the byte data and the mask carry out with operation, obtain described waiting to compare
Compared with data.
For example, after data message is received, message content can be obtained according to deviant is extracted, for example,
Extraction deviant is 2 bytes, then can every time extract 2 bytes in data message, and extraction time can be selected
Select 1 to 10 times；Specifically, one message of identification can at most match 20 bytes, then using covering
Code is processed the message content for extracting, and obtains the data to be compared for finally needing to compare；By number to be compared
Compare according to matching is carried out with matched data, the result for whether being matched.
The match pattern that step 102, basis prestore carries out the data to be compared and the matched data for prestoring
Matching treatment.
Optionally, when the match pattern is more than the matched data, relatively the data to be compared with
The size of the matched data, when the data to be compared are more than the matched data, the result
It is matching；When the match pattern is less than the matched data, relatively the data to be compared with it is described
The size of matched data, the data to be compared be less than the matched data when, the result for
Match somebody with somebody；When the match pattern is equal to the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are equal to the matched data, the result is matching.
When multiple data to be compared are extracted in a data message, only at the place of all data to be compared
When reason result is matching, just show that the data message matches the agreement, export the protocol code of the agreement.
Before step 101 and step 102 is performed, ONU chips obtain protocol identification parameter and store, institute
Stating protocol identification parameter includes the extraction deviant, mask, match pattern and matched data；Specifically,
The protocol identification parameter can enter ONU chips by CPU write.
Step 103, when result is for matching, recognize the protocol code of the data message.
Further, the bag for the ease of follow-up packet handing module is processed and guarantees the repair free of charge that change can be individually complete by hardware
Into after the protocol code of the data message and corresponding treatment action is recognized, can also exporting from institute
The skew value information of the data message obtained in data message is stated, these skew value informations can be carried directly
The treatment of supply bag, guarantee the repair free of charge to change and use, i.e.,：Expanding packet form message can completely give hardware handles, it is to avoid
Can only be extracted after message identification to the software of CPU carries out processing this mode, so as in flexibly identification simultaneously
Process performance is greatly improved while processing data message.
In practical application, when treatment is identified to data message, data message may be matched simultaneously
Multiple protocol rules, at this point it is possible to the small output as a result of prioritizing selection protocol code.As shown in Fig. 2
To being illustrated as a example by data message simultaneously two protocol rules of matching.
After data message input, Extended Protocol rule module 1 and Extended Protocol rule module 2 are simultaneously to the number
Treatment is identified according to message；Specifically, the extraction skew that Extended Protocol rule module 1 prestores according to itself
Value and mask, extract data to be compared 1, data to be compared 2 and to be compared from the data message for receiving
Data 3；Unconcerned bit (bit) in data to be compared is deleted, then will be treated according to the match pattern for prestoring
Compare data carries out matching treatment with the matched data for prestoring, i.e. be more than with agreement same domain, less than,
The matching action being equal to, obtains matching result；Likewise, Extended Protocol rule module 2 is pre- also according to itself
The extraction deviant and mask deposited, extract data to be compared 1, data to be compared 2 and treat from data message
Compare data 3；Then be more than with agreement same domain, less than, be equal to match action, matched
As a result.
If the matching result that Extended Protocol rule module 1 or Extended Protocol rule module 2 are obtained is matching,
Show that the data message only matches a kind of agreement, then export corresponding protocol code, and output data message
Skew value information；If the matching knot that Extended Protocol rule module 1 and Extended Protocol rule module 2 are obtained
Fruit is matching, then the skew value information of the small protocol code of output protocol coding, and output data message.
Further, if the data message have matched existing protocol simultaneously, can be selected according to global configuration
Select one of which to be exported as final result, the present embodiment is not specifically limited this.
A kind of unknown bag form as shown in Figure 3, according to the protocol identification parameter for prestoring, in the start of message (SOM)
D1 data after a bytes between [X1..X5] is worth, i.e., more than X1, less than offseting b after X5, and D1
Latter byte is equal to value X2 in the D2 data of byte, and then two bytes are that bag treatment needs what is be concerned about
The net cores of DATA1, the net cores of D3 obtain the previous byte of D3 data more than value after offseting c byte backward
X3.D4 backward after offset d byte is equal to X4 again.It is to guarantee the repair free of charge to change the DATA2 that needs are concerned about immediately following D4
Net core.
Based on the field that the identification condition and needs are concerned about.We can be recognized with corresponding configuration expanding packet：
1) OFFSET1=a, mask1=0xffff, mode1 are more than matching value is X1；
2) OFFSET1=a, mask1=0xffff, mode1 are less than matching value is X5；
3) OFFSET2=(a+2+b), mask2=0x00ff, mode2 are equal to matching value is X2；
4) OFFSET3=(a+2+b+4+c), mask3=0xff00, mode3 are more than matching value is
X3；
5) OFFSET=(a+2+b+4+c+2+d), mask=0xffff, mode4 are equal to matching value
It is X4.
Wherein, OFFSET represents side-play amount, and mask is mask, and mode is match pattern.
As shown in figure 4, the specific identification process of the message is：After message is input into, at the same with this 4 bars
Part is matched.Such as first matching condition, first extracts a-th and the a+1 byte report in message
Text, i.e. D1 data, "AND" treatment is carried out by D1 and mask1 values, filters out what some need not be concerned about
Whether bit (bit), obtains D1 ', then judges the value of D1 ' in the interval range of [X1...X5], if it is not,
It is judged as mismatching the agreement；Matched with second matching condition, first extracted a+2+b in message
With the a+2+b+1 byte message, i.e. D2, by D2 and mask2 carry out with operation, obtain D2 ', sentence
Whether disconnected D2 ' is equal to X2, if it is not, being then judged as mismatching the agreement；Carried out with the 3rd matching condition
Match somebody with somebody, message a+2+b+4+c and the a+2+b+4+c+1 byte message, i.e. D3 are extracted, by D3
With mask3 carry out with operation, obtain D3 ', whether D3 ' is judged more than X3, if it is not, not then being judged as not
With the agreement；Matched with the 4th matching condition, extracted message a+2+b+4+c+2+d and the
A+2+b+4+c+2+d+1 byte message, i.e. D4, by D4 and mask4 carry out with operation, obtain D4 ',
Whether D4 ' is judged more than X4, if it is not, being then judged as mismatching the agreement.
If the matching result of aforementioned four matching condition is matching, recognize that the data message is newly-increased association
View message, exports corresponding protocol code；Simultaneously because flow point class (bag treatment) is needed based on DATA1
With DATA2 treatment, therefore the corresponding offset address of synchronism output D2 and D4.
As can be seen from the above description, complicated unknown message such a for Fig. 3, the present embodiment
Matching condition can be configured flexibly as software.This method for unknown message matching condition, no
Only include mask, also more than, less than etc. various modes matching, so can easily complete multiple
Various matching ways such as accurately mate, fuzzy matching, the commensurate in scope of field, so as to easily recognize
Go out expanding packet form.
The identifying processing method of the data message that the present embodiment is provided, can flexibly recognize and processing data message,
And lifting process performance.
Fig. 5 is the structural representation of the recognition process unit of data message provided in an embodiment of the present invention, is such as schemed
Shown in 5, the device that the present embodiment is provided includes：Acquisition module 11, matching module 12 and identification module 13.
Wherein, acquisition module 11, for according to the extraction deviant and mask for prestoring, from the data for receiving
Data to be compared are extracted in message；
Matching module 12, for according to the match pattern that prestores by the data to be compared and the coupling number for prestoring
According to carrying out matching treatment；
Identification module 13, during for the result in the matching module 12 for matching, recognizes the number
According to the protocol code of message.
The acquisition module 11 from the data message according to the extraction deviant specifically for extracting phase
The byte data answered, by the byte data and the mask carry out with operation, obtain the data to be compared.
The matching module 12 is specifically for when the match pattern is more than the matched data, comparing institute
The size of data to be compared and the matched data is stated, when the data to be compared are more than the matched data,
The result is matching；When the match pattern is less than the matched data, wait to compare described in comparing
It is described when the data to be compared are less than the matched data compared with the size of data and the matched data
Result is matching；When the match pattern is equal to the matched data, relatively more described number to be compared
According to the size with the matched data, when the data to be compared are equal to the matched data, the treatment
Result is matching.
Further, described device also includes：Output module, the deviant for exporting the data message
Information.
Further, the acquisition module 11 is additionally operable to obtain protocol identification parameter and store, and the agreement is known
Other parameter includes the extraction deviant, mask, match pattern and matched data.
The recognition process unit of the data message that the present embodiment is provided, can be used to perform above method embodiment
Technical scheme, its realization principle is similar with technique effect, and here is omitted.
In actual applications, the acquisition module 11, matching module 12 and identification module 13 can be by positioned at ONU
Central processing unit (CPU), microprocessor (MPU), digital signal processor (DSP) on chip or
The devices such as field programmable gate array (FPGA) are realized.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can using hardware embodiment, software implementation or combine software and
The form of the embodiment of hardware aspect.And, the present invention can be used and wherein include calculating at one or more
Computer-usable storage medium (the including but not limited to magnetic disk storage and optical storage of machine usable program code
Device etc.) on implement computer program product form.
The present invention is with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Flow chart and/or block diagram describe.It should be understood that flow chart and/or side can be realized by computer program instructions
The knot of flow in each flow and/or square frame and flow chart and/or block diagram and/or square frame in block diagram
Close.Can provide these computer program instructions to all-purpose computer, special-purpose computer, Embedded Processor or
The processor of other programmable data processing devices is producing a machine so that by computer or other can
The instruction of the computing device of programming data processing equipment is produced for realizing in one flow of flow chart or multiple
The device of the function of being specified in one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices
In the computer-readable memory for working in a specific way so that storage is in the computer-readable memory
Instruction is produced includes the manufacture of command device, and the command device is realized in one flow of flow chart or multiple streams
The function of being specified in one square frame of journey and/or block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, made
Obtain and series of operation steps is performed on computer or other programmable devices to produce computer implemented place
Reason, so as to the instruction performed on computer or other programmable devices is provided for realizing in flow chart one
The step of function of being specified in flow or multiple one square frame of flow and/or block diagram or multiple square frames.
The above, only presently preferred embodiments of the present invention is not intended to limit protection model of the invention
Enclose.
Claims (10)
1. a kind of identifying processing method of data message, it is characterised in that methods described includes：
According to the extraction deviant and mask that prestore, data to be compared are extracted from the data message for receiving；
The data to be compared and the matched data for prestoring are carried out by matching treatment according to the match pattern for prestoring；
When result is for matching, the protocol code of the data message is recognized.
2. method according to claim 1, it is characterised in that according to the extraction deviant for prestoring and cover
Code, extracts data to be compared from the data message for receiving, including：
Corresponding byte data is extracted from the data message according to the extraction deviant, by the byte
Data and the mask carry out with operation, obtain the data to be compared.
3. method according to claim 2, it is characterised in that according to the match pattern for prestoring will described in
Data to be compared carry out matching treatment with the matched data, including：
When the match pattern is more than the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are more than the matched data, the result is matching；
When the match pattern is less than the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are less than the matched data, the result is matching；
When the match pattern is equal to the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are equal to the matched data, the result is matching.
4. method according to claim 1, it is characterised in that the association of the identification data message
After view coding, methods described also includes：
Export the skew value information of the data message.
5. according to any described method of Claims 1-4, it is characterised in that what the basis prestored carries
Deviant and mask are taken, before data to be compared are obtained from the data message for receiving, methods described is also wrapped
Include：
Obtain protocol identification parameter simultaneously store, the protocol identification parameter include it is described extraction deviant, mask,
Match pattern and matched data.
6. a kind of recognition process unit of data message, it is characterised in that described device includes：
Acquisition module, for according to the extraction deviant and mask for prestoring, being carried from the data message for receiving
Take data to be compared；
Matching module, for according to the match pattern that prestores by the data to be compared and the matched data for prestoring
Carry out matching treatment；
Identification module, during for the result in the matching module for matching, recognizes the data message
Protocol code.
7. device according to claim 6, it is characterised in that the acquisition module specifically for：
Corresponding byte data is extracted from the data message according to the extraction deviant, by the byte
Data and the mask carry out with operation, obtain the data to be compared.
8. device according to claim 7, it is characterised in that the matching module specifically for：
When the match pattern is more than the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are more than the matched data, the result is matching；
When the match pattern is less than the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are less than the matched data, the result is matching；
When the match pattern is equal to the matched data, relatively more described data to be compared are matched with described
The size of data, when the data to be compared are equal to the matched data, the result is matching.
9. device according to claim 6, it is characterised in that described device also includes：Output module,
Skew value information for exporting the data message.
10. according to any described device of claim 6 to 9, it is characterised in that the acquisition module is also
For：Obtain protocol identification parameter and store, the protocol identification parameter includes the extraction deviant, covers
Code, match pattern and matched data.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916959.4A CN106878098A (en) | 2015-12-10 | 2015-12-10 | The identifying processing method and device of data message |
| PCT/CN2016/101455 WO2017097026A1 (en) | 2015-12-10 | 2016-10-08 | Identification processing method and apparatus for data message, and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510916959.4A CN106878098A (en) | 2015-12-10 | 2015-12-10 | The identifying processing method and device of data message |
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| CN111683036B (en) * | 2020-02-29 | 2022-05-27 | 新华三信息安全技术有限公司 | Data storage method and device and message identification method and device |
| CN112187583B (en) * | 2020-09-30 | 2022-03-25 | 绿盟科技集团股份有限公司 | Method, device and storage medium for recognizing action information in private industrial control protocol |
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| US7420975B1 (en) * | 2002-12-20 | 2008-09-02 | Cypress Semiconductor Corporation | Method and apparatus for a high-speed frame tagger |
| CN100493079C (en) * | 2004-01-08 | 2009-05-27 | 华为技术有限公司 | Method for main node supporting different agreement type secondary unit apparatus on secondary node |
| CN101409677B (en) * | 2008-11-27 | 2010-12-08 | 福建星网锐捷网络有限公司 | Access control method and apparatus |
| CN102195977B (en) * | 2011-04-13 | 2014-07-23 | 北京恒光创新科技股份有限公司 | Network protocol identification method and device |
| CN104753885B (en) * | 2013-12-30 | 2018-06-26 | 杭州华为数字技术有限公司 | A kind of matched method, apparatus of flow table and OpenFlow exchange systems |
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| CN110311835A (en) * | 2019-07-09 | 2019-10-08 | 国网甘肃省电力公司电力科学研究院 | A kind of electric power IEC agreement airworthiness compliance method based on content template |
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