CN102014072A - Playback method for random disorder of flow - Google Patents
Playback method for random disorder of flow Download PDFInfo
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- CN102014072A CN102014072A CN2010105980012A CN201010598001A CN102014072A CN 102014072 A CN102014072 A CN 102014072A CN 2010105980012 A CN2010105980012 A CN 2010105980012A CN 201010598001 A CN201010598001 A CN 201010598001A CN 102014072 A CN102014072 A CN 102014072A
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Abstract
The invention provides a playback method for a random disorder of flow, comprising the following steps: obtaining the data of a certain flow from a real network and storing; reading the network data, storing position length information of a data packet, and counting the number N of the packets; appointing M disordering areas, appointing M disordering proportions; randomly generating a new packet sequence of the data packet according to the disordering area and the disordering proportion; reading the relative data packet to send out according to the stored information of the data packet according to the new packet sequence. The method is easy to implement; the disordering proportion and the disordering range are controllable for the whole flow; the method is capable of flexibly selecting a plurality of areas of the disorder and simulating the random feature of the network; and the disorder of the appointed area is random.
Description
Technical field
The present invention relates to the network data processing field, be specifically related to the out of order at random back method of a kind of flow.
Background technology
Along with rapid development of Internet, the surge of network traffics, the needs of network data processing are asked also and are increased thereupon.In the various Related products of research and development network data processing, especially in the debug phase, a lot of application needs are upset sequence to the flow in the network and are carried out playback, and especially the stream to the TCP layer sorts.Inevitably need use flow playback in the network.Since the complexity of network environment, packet in transport process via route may be different, cause the sending order of packet and reception order inconsistent, just out of order.
Current have many software and hardwares can carry out playback to flow, as the patent of publication number CN101841441A, disclose hardware as the easy network test equipment of surveying, and software is as tcpreplay.Yet, these flow back methods generally adopt the sequential playback flow or or one the bag bag carry out out of order processing by prior setting.These methods implement more complicated, though and out of order scope difficult with control thus these methods to a certain extent network environment is simulated, upset the demand of packet sequence playback but can not satisfy the demand, can not satisfy out of order scope of control data bag and out of order degree demand, randomness that more can not analog network.
Summary of the invention
For addressing the above problem, the invention provides the out of order at random back method of a kind of flow.
The back method that a kind of flow is out of order at random may further comprise the steps:
A, obtain the data and the storage of certain flow from network;
B, read network data, the position and the length information of storage packet, statistical packages is counted N;
M out of order ratio specified in C, M out of order zone of appointment;
D, generate the New Development packet sequence of a packet at random according to out of order zone and out of order ratio;
E, according to the New Development packet sequence, send according to the packet information reading corresponding data bag of step B storage.
First kind of optimal technical scheme of the present invention is: can use tcpdump software to obtain network data.
Second kind of optimal technical scheme of the present invention is: the data that described out of order zone comprised are not overlapping, between zone and the zone packet can be arranged, and these packets do not participate in out of order outside out of order zone.
The third optimal technical scheme of the present invention is: the corresponding in order out of order zone of described out of order ratio, control the out of order degree in out of order zone.
Beneficial effect of the present invention is as follows:
1. this invention is easy to realize;
2. for whole flow, out of order ratio and out of order scope are controlled;
3. can select out of order a plurality of zones flexibly;
4. simulated the stochastic behaviour of network, the out of order of appointed area is at random.
Description of drawings
Fig. 1 is a flow chart of the present invention
Embodiment
(1) also stores from the data of live network acquisition certain flow;
Make to use tcpdump to grasp the data that need and deposit in the file.
(2) read network data, the storage packet information.
Open the file of storage data, the positional information and the length information of storage packet, and statistical data packet sum N;
(3) specify M out of order zone, specify M out of order ratio;
Specify M out of order zone, the data that each zone comprised are not overlapping, between zone and the zone packet can be arranged, and these packets do not participate in out of order outside out of order zone.Specify M out of order ratio, the out of order degree in out of order zone is controlled in the corresponding in order out of order zone of each ratio.
(4) according to upsetting the preface zone respectively generates a packet at random with out of order ratio New Development packet sequence;
Generate M random sequence at random according to out of order zone and out of order ratio, Nj1～Nj2 (1＜=Nj1＜Nj2＜=N, Nj1, Nj2 is the position of packet in sequence, and it is 1＜=j＜=M), integrated data bag sum, obtain a new packet and send sequence 1,2,3, Nj1 ..., Nj2, ... N-2, N-1, N;
(5) according to the New Development packet sequence, the playback of data bag.
According to the New Development packet sequence, the packet information reading corresponding data bag of storing according to step (2) sends.
Claims (4)
1. back method that flow is out of order at random is characterized in that: may further comprise the steps:
A, obtain the data and the storage of certain flow from network;
B, read network data, the position and the length information of storage packet, statistical packages is counted N;
M out of order ratio specified in C, M out of order zone of appointment;
D, generate the New Development packet sequence of a packet at random according to out of order zone and out of order ratio;
E, according to the New Development packet sequence, send according to the packet information reading corresponding data bag of step B storage.
2. the out of order at random back method of a kind of according to claim 1 flow is characterized in that: can use tcpdump software to obtain network data.
3. the out of order at random back method of a kind of according to claim 1 flow, it is characterized in that: the data that described out of order zone comprised are not overlapping, between zone and the zone packet can be arranged, and these packets do not participate in out of order outside out of order zone.
4. the out of order at random back method of a kind of according to claim 1 flow is characterized in that: the corresponding in order out of order zone of described out of order ratio, control the out of order degree in out of order zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010598001.2A CN102014072B (en) | 2010-12-17 | 2010-12-17 | Playback method for random disorder of flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010598001.2A CN102014072B (en) | 2010-12-17 | 2010-12-17 | Playback method for random disorder of flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102014072A true CN102014072A (en) | 2011-04-13 |
| CN102014072B CN102014072B (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010598001.2A Active CN102014072B (en) | 2010-12-17 | 2010-12-17 | Playback method for random disorder of flow |
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| CN (1) | CN102014072B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106375118A (en) * | 2016-08-31 | 2017-02-01 | 哈尔滨工业大学（威海） | Multi-view-angle traffic mixed playback method and device |
| CN109120545A (en) * | 2017-06-23 | 2019-01-01 | 华为技术有限公司 | Data pack transmission method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464685A (en) * | 2002-06-13 | 2003-12-31 | 优创科技（深圳）有限公司 | Method for processing acoustic frequency flow playback in network terminal buffer |
| CN1842054A (en) * | 2005-03-31 | 2006-10-04 | 华为技术有限公司 | Stimulant data packet transmission out-of-order method and device |
-
2010
- 2010-12-17 CN CN201010598001.2A patent/CN102014072B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464685A (en) * | 2002-06-13 | 2003-12-31 | 优创科技（深圳）有限公司 | Method for processing acoustic frequency flow playback in network terminal buffer |
| CN1842054A (en) * | 2005-03-31 | 2006-10-04 | 华为技术有限公司 | Stimulant data packet transmission out-of-order method and device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106375118A (en) * | 2016-08-31 | 2017-02-01 | 哈尔滨工业大学（威海） | Multi-view-angle traffic mixed playback method and device |
| CN109120545A (en) * | 2017-06-23 | 2019-01-01 | 华为技术有限公司 | Data pack transmission method and device |
| CN109120545B (en) * | 2017-06-23 | 2021-05-04 | 华为技术有限公司 | Data packet transmission method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102014072B (en) | 2014-07-23 |
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Effective date of registration: 20221215 Address after: 430040 NO.666, Wuhuan Avenue, linkonggang economic and Technological Development Zone, Wuhan City, Hubei Province (10) Patentee after: Dawning Network Technology Co.,Ltd. Address before: 300384 Xiqing District, Tianjin Huayuan Industrial Zone (outside the ring) 15 1-3, hahihuayu street. Patentee before: DAWNING INFORMATION INDUSTRY Co.,Ltd. |