CN102325057A - Network testing device - Google Patents

Network testing device Download PDF

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Publication number
CN102325057A
CN102325057A CN201110175681A CN201110175681A CN102325057A CN 102325057 A CN102325057 A CN 102325057A CN 201110175681 A CN201110175681 A CN 201110175681A CN 201110175681 A CN201110175681 A CN 201110175681A CN 102325057 A CN102325057 A CN 102325057A
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China
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test
module
end system
port
network
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CN201110175681A
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Chinese (zh)
Inventor
周贵荣
赵春玲
徐科华
何锋
郭惠军
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中国商用飞机有限责任公司
中国商用飞机有限责任公司上海飞机设计研究院
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Priority to CN201110175681A priority Critical patent/CN102325057A/en
Publication of CN102325057A publication Critical patent/CN102325057A/en

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Abstract

The embodiment of the invention discloses a network testing device comprising a data acquisition module, an end system testing module, a switching unit testing module and a monitoring module, wherein the data acquisition module is used for coupling a port of a switching unit and/or a port of an end system in a communication way so as to acquire data from the port; the end system testing module is coupled to the data acquisition module and used for carrying out first test on the data acquired from the port of the end system; the switching unit testing module is coupled to the data acquisition module and used for carrying out second test on the data acquired from the port of the switching unit; and the monitoring module is coupled to the switching unit testing module and the end system testing module in the communication way and used for acquiring and presenting the results of the first test and/or second test. Through the scheme, AFDX (Avionics Full-Duplex Switched Ethernet) network design, configuration, deployment and test monitoring are combined so that the systematicness and the degree of automation for an AFDX network test are improved.

Description

A kind of network testing device

Technical field

The present invention relates to the field tests of network system, particularly a kind of testing apparatus applicable to the avionic full-duplex Ethernet.

Background technology

Avionic full-duplex Ethernet (Avionics Full Duplex Switched Ethernet; AFDX) be the network interconnection technology that is applicable to big-and-middle-sized airplane avionics system; It adopts single network segment, full duplex, access and key exchange, and technology such as virtual link flow isolation has solved synthesization and interconnects for the requirement of aspects such as network capacity and extensibility, real-time.With ARINC429 and other aeronautical communications network, for example MIL-STD-1553B compares, and AFDX has very big advantage at aspects such as speed, communication mode, information types, has reduced the quantity and weight of various lines.AFDX is the last word in the current avionics bus type product, also is the main flow of the total line products of following avionics.

But on the other hand, to this series products, to above-mentioned AFDX networking products, also lack necessary testing apparatus and means, existing network test instrument when being applied to such AFDX networking products, often lacks systematicness and automaticity is not high enough.

Summary of the invention

Through big quantity research; The inventor finds; The scale that the AFDX network is had and running time (run-time) magnanimity data, and the empty separation structure of exchanging interconnection makes their test and supervision be different from small-scale bus interconnection network (as: 1553B, 429); Can't obtain the communication conditions information of the network overall situation through any the access in the network.To above-mentioned situation; Should take the design phase to networking component; For example end system (ES) and switch are configured performance testing, and the method that can also keep watch on system selectively in running time; To test with supervision and combine support AFDX Network Design, analysis and operation.

To the shortcoming in the above-mentioned background technology, the inventor has proposed a kind of end system of large-scale seating plane avionics system AFDX, testing apparatus of switch of being applicable to.

According to one embodiment of present invention, proposed a kind of network testing device, having comprised: data capture module is used for can be coupled the communicatedly port of crosspoint and/or the port of end system, to obtain data from this port; The end system test module is coupled in data capture module, to carry out first test to catching from the data of the port of end system; The crosspoint test module is coupled in data capture module, to carry out second test to catching from the data that exchange the port of unit; Monitoring module can be coupled in crosspoint test module and end system test module communicatedly, to obtain and to appear the result of first test and/or second test.

Alternatively, above-mentioned network testing device also comprises the end system simulation unit, is used for can be coupled the communicatedly port of crosspoint and/or the port of end system, with end system analogue data transmitting-receiving accordingly.

Alternatively, above-mentioned network testing device comprises that also background traffic injects the unit, and the tested network that is used for being coupled communicatedly is with to wherein injecting the network context flow, thereby emulation generates the networking operational environment of a reality.

Alternatively, the network testing device in the foregoing description also comprises network management module, and obtains the state of crosspoint and/or end system through snmp protocol; And monitoring module, be configured to appear the state that obtains.

Through such scheme, realized function and performance testing to this type systematic, but while monitoring network flow ruuning situation, and analysis, demonstration and the preservation in database of completion monitoring data, and then realized AFDX network test supervision unified platform.AFDX network design, configuration, deployment are combined with the test supervision, improved the systematicness and the automaticity of AFDX network test.

Description of drawings

Through to combining the shown embodiment of accompanying drawing to be elaborated, above-mentioned and other characteristics of the present invention will be more obvious, and identical label is represented same or analogous parts in the accompanying drawing of the present invention.Wherein:

Fig. 1 shows network testing device and network application scene applicatory thereof according to an embodiment of the invention;

Fig. 2 shows end system test module and the syndeton sketch map of monitoring module measurand applicatory with it in the network testing device according to an embodiment of the invention;

Fig. 3 shows crosspoint test module and the syndeton sketch map of monitoring module measurand applicatory with it in the network testing device according to an embodiment of the invention.

Embodiment

Terminological interpretation

AFDX:Avionics Full Duplex Switched Ethernet, the avionic full-duplex switched-type Ethernet is transformed into switching Ethernet on the certainty network that can be used for mission critical system.This network has carried out the standardization definition by ARINC 664part 7 standards, and becomes the main aviation electronics synthesization network of airbus A380 and Boeing 787 aircrafts.

VL:Virtual Link; Virtual link has defined a unidirectional connection in logic, and to one or more destination system, virtual link is to be arranged by one or more fictitious plan link to form from a source; The all designated maximum bandwidth of each virtual link, this bandwidth is distributed by system integration person.

BAG:Bandwidth Allocation Gap, BAG have defined the minimum interval between the original position of two adjacent frames in same VL.

ICD:Interface Control Document, ICD.

ES:End System, end system, end system are embedded in the aviation electronics equipment, are the communication interfaces between subsystem and the AFDX network interconnection, and their major function provides service, to guarantee the safe and reliable exchanges data between the subregion software.

MAC:Media Access Control, medium access control, the MAC layer is arranged in the latter half of OSI seven layer protocol data link layers, main control and the physical medium that is connected physical layer be responsible for.

UDP:User Datagram Protocol, user datagram protocol, UDP is a kind of connectionless transport layer protocol in the OSI Reference Model, and the simple unreliable information transfer service towards affairs is provided.

XML:eXtensible Markup Language, extend markup language, XML are a kind of simple storage language, use a series of simple mark data of description, and these marks can use easily mode to set up.

GUI:Graphical User Interface, graphic user interface, i.e. man-machine interaction graphic user interface design.

SNMP:Simple Network Management Protocol, Simple Network Management Protocol, SNMP provides the standard communication protocol between Network Management Function and the managed devices.

MIB:Management Information Base, management information bank, MIB provides object-oriented normal data first language, is used for the parameter-definition and the alarm prompt definition of network state.

RMON:Remote Monitoring, remote monitoring, RMON is based on snmp protocol extension realization network flow statistic and analytic function.

Fig. 1 shows network testing device and network application scene applicatory thereof according to an embodiment of the invention.This network testing device 10 comprises: data capture module 11, (End System, ES) test module 12, crosspoint test module 13 and monitoring module 14 for end system.This network testing device 10 can be coupled in the tested network through data capture module 11 communicatedly.

Wherein, data capture module 11 is used for can be coupled the communicatedly port of tested crosspoint and/or the port of end system, to obtain data from this port.Alternatively, data capture module 11 can comprise at least one splitter (Testing Access Point, test access point), and obtains the data on the related port through splitter.

End system test module 12 is coupled in data capture module 11, to carry out first test to catching from the data of the port of end system.

Crosspoint test module 13 is coupled in data capture module 11, to carry out second test to catching from the data of the port of above-mentioned tested crosspoint;

Monitoring module 14 can be coupled in crosspoint test module 13 and end system test module 12 communicatedly, to obtain and to appear the result of first test and/or second test.

Alternatively, the network testing device 10 in the foregoing description comprises that also background traffic injects unit 60, and the tested network that is used for being coupled communicatedly is with to wherein injecting the network context flow, thereby the environment that makes network test is more near real network communications environment.

Alternatively, monitoring module 14 also comprises video switching matrix 40, is configured to switching displayed first test result or second test result in response to user's operation.This first test result and second test result are obtained from end system test module 12 and crosspoint test module 13 respectively

Preferably, in above-mentioned network testing device 10, can also comprise the end system simulation unit, be used for can be coupled the communicatedly port of crosspoint and/or the port of end system, with end system analogue data transmitting-receiving accordingly.

It will be appreciated by those skilled in the art that here; Above-mentioned end system test module 12 and crosspoint test module 13 can be implemented with the incorporate form that is integrated among the network testing device 10; Also can independently move the unit with one with the form of separation; For example the form of a private host is implemented, and concrete implementation is not construed as limiting the invention.

Below, in conjunction with Fig. 2, with end system test module 12 and crosspoint test module 13 respectively as ES Test Host 12a independently and independently switch test main frame 13a be implemented as example, the present invention is schematically explained.

Fig. 2 shows end system test module 12 and the syndeton sketch map of monitoring module 14 measurands applicatory with it among the network testing device 10a according to an embodiment of the invention.

As shown in the figure, network testing device 10a comprises splitter 111, ES simulator 21, ES Test Host 12a.And monitoring module wherein comprises a monitor 141, video switching matrix 40 and human-computer interaction device 50.ES Test Host 12a obtains the communication data between the ES 30 in ES simulator 21 and the tested network through splitter 111.ES simulator 21 all is connected with video switching matrix 40 through video trace with ES Test Host 12a, and can show through monitor 141.And can be through the setting of human-computer interaction device's 50 receptions from the user, correspondingly, end system test module 12 also is configured to according to carry out first test from user's setting.

ES simulator 21 among this network testing device 10a with software or example, in hardware integrated AFDX network traffics injection modules, communicate with tested ES30 to simulate other end system emulation ground.The simulation of input flow rate when AFDX network traffics injection module provides tested ES 30 to move; AFDX end system test module is caught and is analyzed through the flow that 111 couples of tested ES 30 of TAP splitter send, and accomplishes the test of tested ES 30 according to the test case that the user sets.In the process of this test, if need not simulate the input flow rate of tested ES 30 time, can tested ES 30 directly be connected with ES Test Host 12a, for example, realize function and the performance testing of tested ES 30 through common Ethernet two-shipper interconnect cable.When tested ES 30 does not exist, when perhaps carrying out AFDX end system test macro function presentation, AFDX network traffics injection module can replace the flow behavior of tested ES, realizes that systemic-function shows.

Fig. 3 shows crosspoint test module 13 and the syndeton sketch map of monitoring module 14 measurands applicatory with it in the network testing device 10 according to an embodiment of the invention.

As shown in the figure, above-mentioned network testing device 10a also comprises splitter 112,113, tested switch 100, access switch/hub 90, ES simulator 22, switch test main frame 13a.When ES simulator 21 and ES simulator 22 communicated through tested switch 100, switch test main frame 13a obtained 100 pairs of above-mentioned ES simulators 21 of tested switch and the I/O data of ES simulator 22 on corresponding ports through splitter 112,113.Switch test main frame 13a, ES simulator 22,21 and background traffic are injected unit 60 and all are connected with video switching matrix 40 through video trace, and can show through monitor 141.And can be through the setting of human-computer interaction device's 50 receptions from the user, correspondingly, crosspoint test module 13 also is configured to according to carry out second test from user's setting.

Background traffic among this network testing device 10a inject unit 60 with software or example, in hardware integrated AFDX background traffic injection module; And the ES simulator 22,21 among this network testing device 10a also with software or example, in hardware integrated separately AFDX network traffics injection modules; There is not the flow Behavior modeling function of equipment (perhaps faulty equipment) in AFDX network traffics injection module when the AFDX network operation is provided, AFDX network traffics injection module provides the flow simulation function through end system simulator and background traffic injection module two aspects.ES simulator 21,22 is simulated the flow behavior of ES respectively, and background traffic is injected unit 60 through the assignment of traffic that switch 90 carries out based on port, realizes the simulation process of distributed background traffic.

Alternatively, above-mentioned network testing device 10a also comprises the AFDX network management module, and obtains the state of crosspoint and/or end system through snmp protocol; And monitoring module 14, be configured to appear the state that obtains.The AFDX network management module is through the equipment of SNMP service implementing to resident SNMP OAMAgent, and for example switch test main frame 13a, ES simulator 22,21 etc. carry out Stateful Inspection.The AFDX network monitoring device also can be through TAP splitter to being kept watch on by the flow on the monitoring link (bidirectional traffics), and according to user's configuration information, carry out content interpret and demonstration.

Preferably; First test that network testing device 10 in the foregoing description or the end system test module of 10a are carried out comprises at least one in the following: the test of avionic full-duplex ethernet frame format; The test of virtual link bandwidth distribution gap, the virtual link jitter test; Branch sends performance test, two redundant tests of sending; And

Second test that the crosspoint test module is carried out comprises at least one in the following: the test of virtual link filtering feature, and the flow management test, the test of port buffer capacity, technological delay testing, high lower priority frame is handled test.

The block diagram of Fig. 1-Fig. 3 illustrates just to the purpose of example, is not to be limitation of the present invention.In some cases, can add or reduce wherein some equipment as required.

In addition, embodiments of the invention can be realized with the combination of software, hardware or software and hardware.Hardware components can utilize special logic to realize; Software section can be stored in the memory, and by suitable instruction execution system, for example microprocessor or special designs hardware are carried out.Those having ordinary skill in the art will appreciate that can use a computer executable instruction and/or be included in the processor control routine of above-mentioned method and system realizes, for example provides such code on such as the mounting medium of disk, CD or DVD-ROM, such as the programmable memory of read-only memory (firmware) or the data medium such as optics or electronic signal carrier.The system of present embodiment and assembly thereof can by such as very lagre scale integrated circuit (VLSIC) or gate array, such as the semiconductor of logic chip, transistor etc., or realize such as the hardware circuit of the programmable hardware device of field programmable gate array, programmable logic device etc.; Also can use the software of carrying out by various types of processors to realize, also can by the combination of above-mentioned hardware circuit and software for example firmware realize.

Though described the present invention, should be appreciated that to the invention is not restricted to the disclosed embodiments with reference to the embodiment that considers at present.On the contrary, the present invention is intended to contain included various modifications and equivalent arrangements in spirit and the scope of accompanying claims.The scope of following claim meets broad interpretation, so that comprise all such modifications and equivalent structure and function.

Claims (8)

1. network testing device comprises:
Data capture module is used for can be coupled the communicatedly port of crosspoint and/or the port of end system, to obtain data from this port;
The end system test module is coupled in said data capture module, to carry out first test to catching from the data of the port of said end system;
The crosspoint test module is coupled in said data capture module, to carry out second test to catching from the data of the port of said crosspoint;
Monitoring module can be coupled in said crosspoint test module and said end system test module communicatedly, to obtain and to appear the result of said first test and/or said second test.
2. network testing device according to claim 1, wherein, said data capture module comprises at least one splitter.
3. network testing device according to claim 1 also comprises the end system simulation unit, is used for can be coupled the communicatedly port of said crosspoint and/or the port of said end system, with the analogue data transmitting-receiving accordingly of said end system.
4. according to each described network testing device among the claim 1-3, comprise that also background traffic injects the unit, the said tested network that is used for being coupled communicatedly is with to wherein injecting the network context flow.
5. network testing device according to claim 1, wherein, said monitoring module also comprises video switching matrix, is configured to said first test result of switching displayed or said second test result in response to user's operation.
6. according to claim 1 or 5 described network testing devices, wherein, said monitoring module also comprises human-computer interaction module, to be used to receive the setting from the user; And
Said crosspoint test module also is configured to according to said setting from the user and carries out said second test, and said end system test module also is configured to according to said setting from the user and carries out said first test.
7. network testing device according to claim 1 wherein, also comprises network management module, and obtains the state of said crosspoint and/or said end system through snmp protocol; And said monitoring module, be configured to appear the said state that obtains.
8. network testing device according to claim 1, wherein, said first test comprises at least one in the following: the test of avionic full-duplex ethernet frame format, the test of virtual link bandwidth distribution gap, virtual link jitter test; Branch sends performance test, two redundant tests of sending; And
Said second test comprises at least one in the following: the test of virtual link filtering feature, and the flow management test, the test of port buffer capacity, technological delay testing, high lower priority frame is handled test.
CN201110175681A 2011-06-27 2011-06-27 Network testing device CN102325057A (en)

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CN102780581A (en) * 2012-07-20 2012-11-14 北京航空航天大学 AFDX (Avionics Full Duplex Switched Ethernet) end-to-end delay bound claculation method based on random network calculus
CN102968351A (en) * 2012-12-13 2013-03-13 中国航空无线电电子研究所 External control method for BIT parameters
CN103634238A (en) * 2013-12-03 2014-03-12 中国航空无线电电子研究所 Interchanger and interchanging method for supporting data monitoring of AFDX (avionics full duplex-switched Ethernet) protocol interchanging engine
CN103684954A (en) * 2012-09-24 2014-03-26 西门子公司 Redundantly operable industrial communication system and method for operation thereof
CN104717052A (en) * 2014-12-09 2015-06-17 中国航空工业集团公司第六三一研究所 Virtual verification system and method based on AFDX network switch chip
CN105335261A (en) * 2015-12-08 2016-02-17 山东超越数控电子有限公司 Design method for testing BIT in server equipment
CN106161117A (en) * 2016-09-29 2016-11-23 北京润科通用技术有限公司 The analogue system of a kind of AFDX network and emulation mode
CN103634238B (en) * 2013-12-03 2016-11-30 中国航空无线电电子研究所 The switch of a kind of data monitoring supporting AFDX agreement switching engine and exchange method
CN107222332A (en) * 2017-05-05 2017-09-29 北京神州新桥科技有限公司 Method of testing, device, system and machinable medium
CN107241238A (en) * 2017-06-09 2017-10-10 中国电子科技集团公司第四十研究所 A kind of network testing device of hand-held 10,000,000,000
CN108076378A (en) * 2018-01-04 2018-05-25 中国人民解放军国防科技大学 Utilize the multimode terminal wireless transmission interface preferred method of preceding bumper advertisements time

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102780581A (en) * 2012-07-20 2012-11-14 北京航空航天大学 AFDX (Avionics Full Duplex Switched Ethernet) end-to-end delay bound claculation method based on random network calculus
CN102780581B (en) * 2012-07-20 2014-10-22 北京航空航天大学 AFDX (Avionics Full Duplex Switched Ethernet) end-to-end delay bound claculation method based on random network calculus
CN103684954A (en) * 2012-09-24 2014-03-26 西门子公司 Redundantly operable industrial communication system and method for operation thereof
CN103684954B (en) * 2012-09-24 2018-08-10 西门子公司 The industrial communication systems of energy redundant operation and the method for operating the industrial communication systems
CN102968351A (en) * 2012-12-13 2013-03-13 中国航空无线电电子研究所 External control method for BIT parameters
CN103634238A (en) * 2013-12-03 2014-03-12 中国航空无线电电子研究所 Interchanger and interchanging method for supporting data monitoring of AFDX (avionics full duplex-switched Ethernet) protocol interchanging engine
CN103634238B (en) * 2013-12-03 2016-11-30 中国航空无线电电子研究所 The switch of a kind of data monitoring supporting AFDX agreement switching engine and exchange method
CN104717052A (en) * 2014-12-09 2015-06-17 中国航空工业集团公司第六三一研究所 Virtual verification system and method based on AFDX network switch chip
CN104717052B (en) * 2014-12-09 2018-02-06 中国航空工业集团公司第六三一研究所 A kind of virtual checking system and method based on AFDX network switch chips
CN105335261A (en) * 2015-12-08 2016-02-17 山东超越数控电子有限公司 Design method for testing BIT in server equipment
CN106161117A (en) * 2016-09-29 2016-11-23 北京润科通用技术有限公司 The analogue system of a kind of AFDX network and emulation mode
CN106161117B (en) * 2016-09-29 2019-03-12 北京润科通用技术有限公司 A kind of analogue system and emulation mode of AFDX network
CN107222332A (en) * 2017-05-05 2017-09-29 北京神州新桥科技有限公司 Method of testing, device, system and machinable medium
CN107222332B (en) * 2017-05-05 2020-04-07 北京神州新桥科技有限公司 Test method, device, system and machine readable storage medium
CN107241238A (en) * 2017-06-09 2017-10-10 中国电子科技集团公司第四十研究所 A kind of network testing device of hand-held 10,000,000,000
CN108076378A (en) * 2018-01-04 2018-05-25 中国人民解放军国防科技大学 Utilize the multimode terminal wireless transmission interface preferred method of preceding bumper advertisements time

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