CN105306265B - A kind of data packet method for tracing for switch system simulating, verifying - Google Patents
A kind of data packet method for tracing for switch system simulating, verifying Download PDFInfo
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- CN105306265B CN105306265B CN201510656606.5A CN201510656606A CN105306265B CN 105306265 B CN105306265 B CN 105306265B CN 201510656606 A CN201510656606 A CN 201510656606A CN 105306265 B CN105306265 B CN 105306265B
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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
- H04L41/14—Network analysis or design
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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
- H04L41/08—Configuration management of networks or network elements
- H04L41/085—Retrieval of network configuration; Tracking network configuration history
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
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- Computer Security & Cryptography (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of data packet method for tracing for switch system simulating, verifying, comprising the following steps: step 1: completing the identification of data packet key message；Step 2: in emulation, the key message of addition data packet in actuation generator (generator)；Step 3: in key node acquisition, refreshing and the key message of output data packet is to text；Step 4: combining using order of the invention according to certain key message, the routing information of data packet or corresponding each cell is searched out.The present invention, pass through identification data packet key message and scanned for using key message, so that the whereabouts of data packet are very clear, does not need level-one one level search, and operating in a key reduces the human cost of orientation problem, thus the location efficiency for such issues that improve data-bag lost or mistake.
Description
Technical field
The present invention relates to network communication technology fields, and in particular to a kind of data packet for switch system simulating, verifying
Method for tracing.
Background technique
With the development of the communications industry, the development of interchanger is advanced by leaps and bounds, and various consensus standards and exchange scheme are more next
More complicated, switch system is more and more huger, and the emulation testing of switch system also becomes increasingly complicated.
As the difficulty of switch system emulation testing increases, test method is also more and more.Such as Chinese invention patent
CN103440195A discloses the exchanger chip verification method and device of a kind of logic-based chip, describes a kind of emulate and tests
The method for demonstrate,proving exchanger chip, so that configuration use-case is simpler.As Chinese invention patent CN104253723A discloses a kind of base
In the method and device for the interchanger validation test that software-hardware synergism is realized, describe a kind of that software configuration and High-Speed Hardware is special
Property combine method.As Chinese invention patent CN104065536A discloses a kind of Ethernet exchanging based on UVM verification method
Machine FPGA verification method describes a kind of introducing UVM methodology, for the verification platform of certain class particular switch system.Such as
The research and invention of the emulation verification method of such interchanger are more and more.But these methods be all absorbed in verifying methodology and
The structure of verification platform does not study the positioning means for emulating the problem of detected.
In the switch system simulating, verifying to become increasingly complex, the positioning of the problem of data-bag lost or mistake will
It becomes increasingly complex.It is cell, also a series of complex feelings such as multicast, broadcast that data packet can have slice in switch system
Condition, the access of selection forwarding are also not that we are specified or be easy to calculate, and the trace for looking for data packet also becomes tired
Such issues that difficulty, general is mostly to find from downstream toward upstream level-one level-one, and efficiency is very low, location data packet loss or mistake is consumed
The human cost taken is huge.In order to solve this problem, need to study such issues that how to improve data-bag lost or mistake
Location efficiency method.
Summary of the invention
The technical problem to be solved by the present invention is to solve to improve when occurring such issues that data-bag lost or mistake
The problem of data packet tracking and location efficiency.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that providing a kind of imitative for switch system
The data packet method for tracing really verified, comprising the following steps:
Step 1: completing the identification of data packet key message, generally comprise: stream ID (stream_id) identifies the data packet
Which data stream belonged to；Scene ID (scenario_id) identifies serial number of the data packet in corresponding data stream；Data packet
ID (data_id), the serial number for the data packet that actuation generator generates are globally unique；Copy ID (copy_id), for multicast and
Broadcasting scenario, data packet can have the case where duplication, the serial number of ID mark copy.If it is what is handled based on cell, one
Packet may be sliced as multiple cells, need to increase slice ID (fragment_id), identifying the cell is corresponding data packet
Which slice.
Step 2: in emulation, the key message of addition data packet in actuation generator (generator).
Step 3: in key node acquisition, refreshing and the key message of output data packet is to text.
Step 4: combining using order of the invention according to certain key message, data packet or corresponding each cell are searched out
Path (cell pass through module) information.
In the above-mentioned methods, the identifier for needing voluntarily to add data packet switchs print data packet according to debugging function
Key message (may be cut to one or more letters using order provided by the invention searching data packet in switch system
Member) path.
In the above-mentioned methods, if it is circuit-level code, then identifier is carried in the part filling (padding)；If
It is transaction-level code, then constructs a key message structure, carries relevant information.
In the above-mentioned methods, the identifier requires relatively independent, does not influence the function of tested design (DUT).
The present invention scans for key message by identification data packet key message and according to order, so that data packet
Whereabouts it is very clear, do not need level-one one level search, and operating in a key reduces the human cost of orientation problem, can be improved
The location efficiency of such issues that data-bag lost and mistake, and have the advantage that
(1) from huge data, find needed for it is to be understood that data packet routing information, reduce positioning problems range；
(2) it is arranged according to order, intuitively show paths information result, removes the cumbersome of level-one one level search packet information from
Process；
(3) above-mentioned key message, can cover each scene of current communication switchboard application, and different information combinations can be with
Cope with the location requirement of different scenes.
(4) key message can be used as a part filling of data packet, or as additional data structure with data packet one
Transmitting is played, the verification platform even completed, can also modify seldom part does not influence original function using the invention.
Detailed description of the invention
Fig. 1 dark parts are that a kind of data packet method for tracing for switch system simulating, verifying provided by the invention exists
Position involved in verification platform and DUT；
Fig. 2 is a kind of method flow of the data packet method for tracing for switch system simulating, verifying provided by the invention
Figure.
Specific embodiment
The present invention is described in detail with specific embodiment with reference to the accompanying drawings of the specification.
The embodiment of the invention provides a kind of data packet method for tracing for switch system simulating, verifying, such as Fig. 1, figure
Shown in 2, it the described method comprises the following steps:
Step 1: completing the identification of data packet key message.
Data packet key message generally comprises:
Stream ID (stream_id), identifies which data stream is the data packet belong to；
Scene ID (scenario_id) identifies serial number of the data packet in corresponding data stream；
Data packet ID (data_id), the serial number for the data packet that actuation generator generates are globally unique；
It copies ID (copy_id), for multicast and broadcasting scenario, data packet can have the case where duplication, and ID mark is copied
The serial number of shellfish.
If it is what is handled based on cell, a packet may be sliced as multiple cells, need to increase slice ID
(fragment_id), which slice that the cell is corresponding data packet identified.
Step 2: in emulation, the key message of addition data packet in actuation generator (generator), as shown in figure 1
101.
Step 3: key node acquisition, refresh and output data packet key message to text, as shown in figure 1 102.
Step 4: searching out the road of data packet ID or corresponding each cell from text according to the combination of certain key message
Diameter (module that cell passes through) information.
As shown in Fig. 2, the specific steps of second step are described as follows:
Step 201: in actuation generator add data packet key message: stream_id, scenario_id and
Data_id, corresponding position is the generator in Fig. 1 in emulation platform；
Step 202: key message, which is inserted into, on the line among each adjacent modules of DUT acquires refresh module, it is flat in emulation
Corresponding position is that the key message in Fig. 1 in DUT acquires refresh module in platform；
Step 203: judging whether DUT has cell slicing treatment, if there is then entering step 204, be otherwise directly entered step
Rapid 205；
Step 204: in the key message acquisition refresh module with the output connection of DUT cell slicing treatment module, extracting
Serial number of the cell in corresponding data packet refreshes the fragment_id of corresponding cell key message, remaining key message is constant,
Subsequently into step 205；
Step 205: judge DUT whether have multicast or broadcast processing, if there is then entering step 206, otherwise directly into
Enter step 207；
Step 206: it is acquired in refresh module in the key message with DUT multicast or broadcast process module output connection,
The fanout for counting the data packet, successively refreshes copy_id, remaining key message is constant, subsequently into step 207；
Step 207: if debugging function is enabled, entering step 208, otherwise terminate process；
Step 208: the key message in each key message acquisition refresh module is printed, subsequently into step 209,
Step 209: using find_p_c find_module_p_c order, obtain the tune of expected data packet or cell
Information and path are tried, text-independent is as a result put into, can intuitively read, finally terminate process.
It should be noted that needing voluntarily to add the value of key message using in process of the present invention.
Search command is write using bash shell in the present invention, executes at unix, also can be used shell and
Perl or other scripting languages realize that implementing procedure is the same, can also run at windows and Linux system, such as:
Find_p_c: extracting related data packets or cell information from log information, this can be prompted by executing ./find_p_c
Order application method is as follows:
command of mc pkt:./find_p_c stid xx scid xx did xx cid xx
command of uc pkt:./find_p_c stid xx scid xx did xx
command of mc data cell:./find_p_c stid xx scid xx did xx cid xx
command of uc data cell:./find_p_c stid xx scid xx did xx
command of some cell:./find_p_c stid xx scid xx did xx cid xx fid xx
you could choose part of the parameters
Command format is one of above-mentioned, and ./find_p_c adds each combination parameter, and stid stream_id, scid are
Scenario_id, did data_id, cid copy_id, fid fragment_id.
Find_module_p_c: related packet or cell information of the extraction based on module from log information, execution/
Find_module_p_c can prompt the order application method, as follows:
command of mc pkt:./find_p_c module_name instid xx stid xx scid xx
did xx cid xx
command of uc pkt:./find_p_c module_name instid xx stid xx scid xx
did xx
command of mc data cell:./find_p_c module_name instid xx stid xx scid
xx did xx cid xx
command of uc data cell:./find_p_c module_name instid xx stid xx scid
xx did xx
command of some cell:./find_p_c module_name instid xx stid xx scid xx
did xx cid xx fid xx
you could choose part of the parameters
For command format to be one of above-mentioned ./find_module_p_c adds each combination parameter, and module_name is to wish
The module name checked, instid are the serial number of the module example, remaining parameter declaration and find_p_c order are consistent.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn that the knots made under the inspiration of the present invention
Structure variation, the technical schemes that are same or similar to the present invention are fallen within the scope of protection of the present invention.
Claims (3)
1. a kind of data packet method for tracing for switch system simulating, verifying, which comprises the following steps:
Step 1: completing the identification of data packet key message, comprising: stream ID identifies which data stream is the data packet belong to；?
Scape ID identifies serial number of the data packet in corresponding data stream；Data packet ID, the serial number for the data packet that actuation generator generates,
It is globally unique；ID is copied, for multicast and broadcasting scenario, data packet can have the case where duplication, the serial number of ID mark copy；
If it is what is handled based on cell, a packet can be sliced as multiple cells, increase slice ID, identifying the cell is corresponding data
Which slice of packet；
Step 2: adding the key message of data packet in actuation generator in emulation；
Step 3: insertion key message acquires refresh module on the line among tested each adjacent modules of design, acquisition refreshes
With the key message of output data packet to text；
Step 4: combining using search command according to certain key message, the path letter of data packet or corresponding each cell is searched out
Breath, certain key message group are combined into the different information combinations of the location requirement of reply different scenes.
2. the method as described in claim 1, which is characterized in that
Key message can be used as a part filling of data packet, or transmit as additional data structure with data packet；
It in use process, needs voluntarily to add the identifier of data packet, the crucial of print data packet is switched according to debugging function and is believed
Identifier is then carried the filling in data packet if it is circuit-level code by breath, the path that data packet is found using search command
Part；If it is transaction-level code, then a key message structure is constructed, carries relevant information.
3. method according to claim 2, which is characterized in that the identifier requirement is relatively independent, does not influence tested design
Function.
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| CN108183840A (en) * | 2017-12-28 | 2018-06-19 | 天津芯海创科技有限公司 | Verification method, device and the realization device of switch performance |
| CN109995557B (en) * | 2017-12-29 | 2022-05-13 | 中国移动通信集团陕西有限公司 | Communication method and device |
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| CN104065536A (en) * | 2014-07-02 | 2014-09-24 | 浪潮集团有限公司 | Ethernet switch FPGA verification method based on UVM verification method |
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| CN104579788A (en) * | 2015-01-21 | 2015-04-29 | 上海交通大学 | Error positioning method for distributed dynamic routing network |
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| CN102142720A (en) * | 2011-04-29 | 2011-08-03 | 珠海市鸿瑞软件技术有限公司 | Network communication recorder and network communication record analysis system |
| CN102981882A (en) * | 2011-09-05 | 2013-03-20 | 北京旋极信息技术股份有限公司 | Analytic method and analytic device |
| CN103440195A (en) * | 2013-07-11 | 2013-12-11 | 盛科网络（苏州）有限公司 | Switch chip verification method and device based on logic chip |
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