CN1512717A - Network test equipment system and method - Google Patents
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Abstract
A network test system and a method is carried out by a network test equipment of a selectable network simulation test operation mode or a flow generator operation mode, among which, the equipment includes a model library containing models designed by modules of the management end station, a network protocol library storing multinetwork protocol, a simulation process module selecting simulation models, protocols and controlling generation of flow to carry out test according to parameters designed by the control module of the station, the flow generation control module generates flows to test the equipments according to the flow generation paramenters.
Description
[invention field]
The present invention relates to a kind of network test equipment, system and method, refer to network test equipment, the system and method for a kind of network simulation test and flow rate test especially.
[background of invention]
At present, network development is swift and violent, network size is huge day by day, new technology constantly occurs, it is complicated day by day to use on the net, infusion of financial resources constantly increases, this has proposed many new challenges to the network planning and designer, it includes: the packet technology that with IP is representative is the basis of present network, the very big difficulty that the statistic multiplexing characteristic of IP is brought to Network Design can't satisfy the actual needs of network design based on the legacy network design theory of mathematical computations; Present popular network design method based on experience, for small-/medium-sized Intranet still is feasible, still, and along with the rapid expansion and the network complexity of network size increases sharply, the design factor of need considering also with rapid increase, often exceeded the scope that people's experience can be reached; The diversity of network technology causes investment risk to strengthen, field of network communication often has multiple technical method and the networking products that have numerous mutual competitions for the solution of a problem at present, if the report or the third-party test result that can only rely on producer to provide when network design phase, the risk of investment is bigger; If can combine the actual Measurement results and the network design of network traffics, performance, then can be the network optimization reliable foundation is provided, thereby optimize existing network, excavation network internal potentiality, reduce the network operation cost.Therefore when network design, the test result that needs network or the network equipment are tested to obtain the network or the network equipment is very crucial, yet in traditional network test or network equipment detection, needs to set up the network environment of the reality that needs test.For example consulting shown in Figure 1ly, is a traditional network test system applied environment schematic diagram.When a tested equipment 8 was tested, tested equipment 8 need directly connect or utilize network 4 to be connected with a plurality of network equipments 9, thereby constitutes the applied environment of this tested equipment 8, just can test this tested equipment 8.The deficiency that this traditional method of testing exists is, needs a plurality of network equipments to make up an actual application environment in test process, this manpower that need cost a lot of money, equipment and time, increases the difficulty of testing.
In traditional network test or network equipment detection, flow generator (Traffic Generator) is a kind of independently network test equipment, it can produce data packet (Packet) according to the condition that sets in advance and come actual flow in a simulate various network equipment (for example switch or router) or the network, the performance and the function of coming test target equipment (as switch or router) or network.For example testing a switch (hereinafter referred to as tested equipment; Device Under Test) in the process, flow generator produces data packet and sends it to tested equipment, flow generator is except generation sends to the flow (Inbound Traffic) of tested equipment in test process, the flow (Outbound Traffic) that also monitors and analyze (as detecting data bag content and record flow size) tested equipment spreads out of, flow generator can be assessed the performance and the function of tested equipment like this.Consider a flow generator performance key factor one be whether its a plurality of PORT COM can produce full rate (line rate) flow under various environment, the flow generator price that reaches such requirement is very expensive, and its price generally arrives hundreds of thousands dollar or more several ten thousand.Yet in a lot of switch tests particularly in the functional test of switch, the actual PORT COM that can produce the flow of full rate or non-full rate on a small quantity that only need use flow generator.
[summary of the invention]
Therefore, at described test macro of prior art and the existing deficiency of flow generator, purpose of the present invention provides a kind of network test equipment, it can be in network simulation test jobs pattern or flow generator work pattern, and provide one to utilize this network test equipment to carry out the system of network test, be used for network simulation test and flow rate test, with the test of conveniently carrying out network and the expense that reduces network test.
The invention provides a network test equipment, the user can select this network test equipment to be in network simulation test jobs pattern or flow generator work pattern by being provided with, and it includes a software module, a hardware module and a plurality of PORT COM.Wherein, it includes a network simulation model storehouse software module, one procotol storehouse, one simulation process module and flow produce control module, this network test equipment can receive the network simulation model of the management end work station transmission that is connected in this network test equipment, this network simulation model can be stored in the network simulation model storehouse, aforesaid procotol stock contains a plurality of procotols, when this network test equipment is in network simulation test jobs pattern, aforesaid simulation process module can be selected network simulation model according to the network test parameter that receives, procotol and generation first flow produce instruction and produce with the flow of controlling described network test equipment, and the tested equipment that is connected in PORT COM is carried out the network simulation test; When the aforesaid network equipment was in the flow generator work pattern, flow produced second flow generation parameter that control module can receive the management end work station transmission that is connected in this network test equipment, and generated flow generation instruction according to this parameter; Hardware module, it includes a first-class volume production generating apparatus and an access media control device, wherein the flow generation device can produce instruction or second flow generation instruction by aforementioned first flow, generate the data packet of corresponding discharge, the access media control device can send to data packet corresponding PORT COM.
The invention provides a kind of network test system, it utilizes aforesaid network test equipment to carry out network simulation test and flow rate test, this network test system includes at least one management end work station, one network test equipment and at least one tested equipment that is connected in network test equipment, the management end work station includes a network model design module, one emulation testing control module and first-class volume production are given birth to parameter setting module, wherein: the network model design module is used for the planned network simulation model, the emulation testing control module, when it is in network simulation test jobs pattern when described network test equipment, the network simulation test parameter is set, the simulation process module of network test equipment receives the network simulation test parameter, and according to this network test parameter selection network simulation model, procotol and generation first flow produce instruction and produce with the flow of controlling described network test equipment, and tested equipment is carried out the network simulation test; Flow produces parameter setting module, when it is in the flow generator work pattern when described network test equipment, flow is set produces parameter, and send it to network test equipment, the flow of network test equipment produces control module and receives this flow generation parameter, and according to this parameter generating flow tested equipment is carried out flow rate test.
The invention provides a kind of network test method, it utilizes aforesaid network test equipment to carry out network simulation test and flow rate test, and it includes following step: it is network simulation test jobs pattern or flow generator work pattern that network test equipment (a) is set; (b) when network test equipment is set to network simulation test jobs pattern, can carry out following step: (b1) utilize management end work station planned network simulation model, the management end work station sends the network simulation model that design finishes to network test equipment, and network test equipment is stored in it in network simulation model storehouse; (b2) utilize the management end work station that is connected in network test equipment that the network simulation test parameter is set, and send this network simulation test parameter to network test equipment; (b3) the simulation process module of network test equipment receives the network simulation test parameter, and selects network simulation model, procotol and control flows volume production to give birth to according to this network test parameter, tested equipment is carried out the network simulation test; (c) when network test equipment is set to the flow generator work pattern, can carry out following step: (c1) utilize the management end work station that flow is set and produce parameter; (c2) flow of network test equipment produces control module and receives this flow generation parameter, and according to this parameter generating flow tested equipment is carried out flow rate test.
Can be used for network simulation test and flow rate test by the aforesaid network equipment, system and method, with equipment, manpower and the time of test as dropping in the minimizing network test of conveniently carrying out network, thus the expense of minimizing network test.
[description of drawings]
Fig. 1 is a traditional network test system applied environment schematic diagram.
Fig. 2 is the applied environment schematic diagram of network test system of the present invention and method.
Fig. 3 is the structural representation of network test equipment of the present invention.
Fig. 4 is the data flowchart of network test system of the present invention.
Fig. 5 is the operation process chart of the network simulation method of testing of network test method of the present invention.
Fig. 6 is the flow rate test operation process chart of network test method of the present invention.
[embodiment explanation]
Shown in Figure 2, be the applied environment schematic diagram of network test system of the present invention and method.One management end work station 2 connects or direct interconnection network testing equipment 6 by network 4, and this network test equipment 6 is connected with tested equipment 8.Described network test equipment 6 includes network simulation test jobs pattern and flow generator work pattern, wherein can carry out the network simulation test by 6 pairs of tested equipment 8 of management end work station 2 Control Network testing equipments in network simulation test jobs pattern lower network tester (not shown).Network test equipment 6 also can be selected the flow generator work pattern, under the flow generator work pattern, the flow that network test equipment 6 can produce certain flow speed (Traffic Rate), data packet (Packet) content and data packet length carries out flow rate test to tested equipment 8.
Wherein, management end work station 2 includes network model design module 22, emulation testing control module 24 and flow and produces parameter setting module 26.Network model design module 22 is a network simulation model design tool, it is used to the network test personnel to set up network simulation model to come emulation reality network environment, described real network environment can include network topology structure, routing Design, business configuration etc., will be stored in the network test equipment 6 through the network simulation model that design finishes.Emulation testing control module 24 utilizes this module network tester to select the emulation testing parameter in the network test process, tests employed network simulation model and procotol as network simulation.The emulation testing parameter also can include the living required first flow generation parameter of control flows volume production in the network simulation test, described first flow parameter can include speed (Traffic Rate), data content, data length and flow send duration (promptly need send flow how long) etc., this emulation testing control module 24 receives the emulation testing parameter of being imported, and send it to network test equipment 6, network test equipment 6 is selected network simulation model and procotol according to this emulation testing parameter, and the life of control flows volume production to be carrying out emulation testing to tested equipment 8, and the life of described control flows volume production is the transmission duration that Control Network testing equipment 6 produces flows, speed (Traffic Rate), data content and data length etc.Flow produces parameter setting module 26, for being provided, first-class volume production gives birth to parameter setting user interface (User Interface) (not shown), produce parameter setting user interface (not shown) by this flow, the network test personnel can import second flow and produce parameter, described second flow produces parameter can include flow rate (Traffic Rate), data content and data length etc., this flow produces parameter setting module 26 and receives this flow generation parameter, and send it to network test equipment 6, network test equipment 6 produces parameter according to this flow, generates certain flow speed (Traffic Rate), the flow of data content and data length carries out flow rate test to tested equipment 8.
In the present embodiment, network 4 can be intranet (Intranet) or Internet (Internet).Tested equipment 8 can be switch, router, server, computer workstation or the network printer, network facsimile machine and no-break power unit UPS etc.
Consult shown in Figure 3ly, be the structural representation of network test equipment 6 of the present invention.Network test equipment 6 of the present invention can be network simulation test jobs pattern and flow generator work pattern, when these network test equipment 6 initialization or installation, the user can be provided with the work pattern of this network test equipment 6 by user interface (User Interface) (not shown).The acquiescence work pattern of this network test equipment 6 is a network simulation test jobs pattern.The work pattern that changes this network test equipment 6 when needs can utilize the user interface to be provided with.Wherein work as network test equipment 6 in network simulation test jobs pattern, can select a network simulation model and procotol, and the control flows volume production is living, tested equipment 8 is carried out the network simulation test, to obtain the performance of this tested equipment 8; And under the flow generator work pattern, network test equipment 6 can produce flow tested equipment 8 is carried out flow rate test.Described network simulation equipment 6 includes a software module 62, a hardware module 64 and a plurality of PORT COM 66.
Wherein, software module 62 includes a network simulation model storehouse 620, a procotol storehouse 622, a simulation process module 624 and first-class volume production and gives birth to control module 626.Wherein network simulation model storehouse 620 is a database, is stored with the diverse network simulation model; Procotol storehouse 622 is a database, is stored with talk various network protocols; Simulation process module 624 can be according to the emulation testing parameter of management end work station 2 transmissions, accesses network simulation model library 620 and procotol storehouse 622 obtain network model, the procotol of emulation testing parameter appointment, and produce parameter according to first flow that emulation testing comprised and generate first flow and produce instruction, the flow of control hardware module 64 produces, to flow in the emulation testing.
When network test equipment 6 was in the flow generator work pattern, flow produces control module 626 can generate second flow generation instruction according to second flow generation parameter that management end work station 2 sends.Flow produces control module 626 can also carry out flow control (Traffic Stream Control), flow rate and distribute control (Traffic Rate and Distribution Control), data packet content and data length control (Packet Content an Length Control) and data packet reception and transmission statistics (Transmission/Reception Statistics).
The hardware module 64 of network test equipment 6 can be an application-specific IC plate (ApplicationSpecific Integrated Circuit; ASIC), it includes flow generation device 642 and access media control device (Media Access Control; MAC) 644.When network test equipment 6 of the present invention is in the flow generator pattern, flow generation device 642 can produce second flow generation instruction that control module 626 is generated according to the flow of software module 62, produce the data packet of certain flow rate, content and data length, and the data packet that is produced is sent to corresponding PORT COM 66 by access media control device 644, to test the performance of tested equipment 8, as exchange capacity, Gbps, disposal ability, throughput etc.When network test equipment 6 is in the emulation testing pattern, the first flow that flow generation device 642 can send according to the simulation process module 624 of software module 62 produces instruction, produce the data packet of certain flow rate, content and data length, and the data packet that is produced is sent to corresponding PORT COM 66 by access media control device 644, so that tested equipment 8 is carried out emulation testing.
Each PORT COM 66 of network test equipment 6 can connect various tested equipment 8 (not shown)s such as work station, terminating machine, server and router etc., realize the communication transmission of network test equipment 6 and other LA Management Room, it is carried out network simulation test and flow rate test.
Consult shown in Figure 4ly, be the data flowchart of network test system of the present invention.When network test equipment 6 is in network simulation test jobs pattern following time, the network model design module 22 of management end work station 2 can be used for the network test personnel and sets up network simulation model and come emulation reality network environment, when the network simulation model design finishes, management end work station 2 sends to network test equipment 6 with network simulation model, and network test equipment 6 is stored in it in network simulation model storehouse 620.In the network simulation test process, the network test personnel select the emulation testing parameter by the emulation testing control module 24 of management end work station 2, as the employed network simulation model of network test, procotol and first flow produce parameter etc., this emulation testing parameter sends network test equipment 6 to via management end work station 2, the simulation process module 624 of network test equipment 6 receives this emulation testing parameter, accesses network simulation model library 620 and procotol storehouse 622, obtain the network model and the procotol of emulation testing parameter-definition, and according to first flow generation parameter generation first flow generation instruction, flow generation device 642 produces instruction according to first flow and produces certain flow rate, the flow of data packet content and data packet length, and the data packet that is produced is sent to the tested equipment 8 that is connected in corresponding PORT COM 66 by access media control device 644, this tested equipment 8 is carried out the network simulation test.
When network test equipment is in the flow generator work pattern, utilize the flow of management end work station 2 to produce the user interface (not shown) that parameter setting module provided, the network test personnel can import second flow and produce parameter, network test equipment 6 obtains this flow and produces parameter, produce parameter according to this second flow and generate flow generation instruction, flow generation device 642 produces instruction according to flow and produces certain flow rate, the flow of data packet content and data packet length, and the data packet that is produced is sent to the tested equipment 8 that is connected in corresponding PORT COM 66 by access media control device 644, to test the performance of tested equipment 8.
Consult shown in Figure 5ly, be the operation process chart of network simulation method of testing of the present invention.The network test personnel are set to network simulation test jobs pattern (step S510) with network test equipment 6.The network test personnel utilize the network model design module 22 of management end work station 2 to set up the network simulation model (step S520) of emulation reality network environment.The network simulation model that management end work station 2 finishes design sends network test equipment 6 to, and network test equipment 6 is stored in (step S530) in the network simulation model storehouse 620 with this network simulation model.When carrying out the network simulation test, the network test personnel utilize emulation testing control module 24 (consulting Fig. 4) to set the emulation testing parameter, as the employed network simulation model of network test, procotol and living (the step S540) such as first flow generation parameters of control flows volume production in the emulation testing process.Aforesaid emulation testing parameter sends network test equipment 6 to via management end work station 2, and the simulation process module 624 of network test equipment 6 receives this emulation testing parameter (step S550).The simulation process module 624 of network test equipment 6 obtains the network model (S560) of emulation testing parameter-definition according to emulation testing parameter access network simulation model storehouse 620.The simulation process module 624 of network test equipment 6 obtains the procotol (step S570) of emulation testing parameter-definition according to emulation testing parameter access procotol storehouse 622.Simulation process module 624 produces parameter according to the included first flow of emulation testing parameter and generates first flow generation instruction (step S580).Flow generation device 642 produces the flow that instruction produces certain flow rate, data packet content and data packet length according to flow, and the data packet that is produced is sent to the tested equipment 8 that is connected in corresponding PORT COM 66 by access media control device 644, this tested equipment 8 is carried out network simulation test (step S590).
Consult shown in Figure 6ly, be flow rate test operation process chart of the present invention.The network test personnel are set to flow generator work pattern (step S610) with network test equipment 6 (consulting Fig. 4).The network test personnel utilize the flow of management end work station 2 to produce parameter setting module 26 and set second flow generation parameter (step S620).Management end work station 2 produces parameter with aforesaid second flow and sends to network test equipment 6, and the flow of network test equipment 6 produces control module 626 (consulting Fig. 4) and obtains aforesaid flow generation parameter (step S630).Flow produces control module 626 and generates second flow generation instruction according to this second flow generation parameter, and sends it to flow generation device 642 (step S640).Flow generation device 642 produces instruction according to second flow and produces flow, described flow is to be made up of the data packet of certain flow rate, content and data length, and by access media control device 644 flow that is produced is sent to corresponding PORT COM 66 (step S650).What flow produced 626 pairs of tested equipment 8 of control module carries out the flow rate test analytic statistics, for example tested equipment 8 (consulting Fig. 4) is received with the data packet that transmits and adds up (step S660).
Claims (18)
1. network test equipment, it can be in network simulation test jobs pattern and the flow generator work pattern, is respectively applied for network simulation test and flow rate test, and it includes a software module, a hardware module and a plurality of PORT COM, it is characterized in that, wherein:
Software module comprises to be had: a network simulation model storehouse, and a procotol storehouse, a simulation process module and flow produce control module; Wherein:
Aforesaid network simulation model stock contains a plurality of network models;
Aforesaid procotol stock contains a plurality of procotols;
When this network test equipment is in network simulation test jobs pattern, aforesaid simulation process module can be selected the network simulation model and the procotol of emulation testing, generate first flow and produce instruction, the tested equipment that is connected in PORT COM is carried out the network simulation test to control the flow generation of described network test equipment;
When aforesaid network test equipment was in the flow generator work pattern, flow produces control module can produce second flow generation instruction;
Hardware module includes a first-class volume production generating apparatus and an access media control device, wherein:
The flow generation device can produce instruction or second flow generation parameter according to aforementioned first flow, generates the data packet of corresponding discharge;
The access media control device can send to data packet corresponding PORT COM.
2. network test equipment as claimed in claim 1 is characterized in that, the user can select this network test equipment to be in network simulation test jobs pattern or flow generator work pattern by being provided with.
3. network test equipment as claimed in claim 2, it is characterized in that, when network test equipment is in network simulation test jobs pattern, this network test equipment can receive the network simulation model of the management end work station transmission that is connected in this network test equipment, and this network simulation model can be stored in the network simulation model storehouse.
4. network test equipment as claimed in claim 3, it is characterized in that, but the network simulation test parameter that the simulation process module receiving management end work station of network test equipment transmits, this network test parameter includes network model and procotol, and selects network simulation model and procotol that tested equipment is carried out the network simulation test according to this network test parameter.
5. network test equipment as claimed in claim 4 is characterized in that, wherein the network simulation test parameter also includes a first flow and produces parameter, and described simulation process module produces parameter according to aforementioned first flow, generates aforementioned first flow and produces instruction.
6. network test equipment as claimed in claim 2, it is characterized in that, when network test equipment is in the flow generator work pattern, flow produces second flow generation parameter that control module can receive the management end work station transmission that is connected in this network test equipment, and generates aforementioned second flow generation instruction according to this parameter.
7. network test equipment as claimed in claim 6 is characterized in that, aforesaid second flow produces parameter can include flow rate, data packet content and data packet length.
8. network test system, it can utilize the described network test equipment of claim 1 to carry out network simulation test and flow rate test, this network test system includes at least one management end work station, aforesaid network test equipment and at least one tested equipment that is connected with this network test equipment, this management end work station includes an emulation testing control module and first-class volume production is given birth to parameter setting module, it is characterized in that, wherein:
The emulation testing control module, it can be when described network test equipment be in network simulation test jobs pattern, the network simulation test parameter is set, the simulation process module of network test equipment receives the network simulation test parameter, select the network simulation model and the procotol of emulation testing according to this network simulation test parameter, and generate first flow generation instruction to control the flow generation of described network test equipment, with to tested equipment, carry out the network simulation test;
Flow produces parameter setting module, when it is in the flow generator work pattern when described network test equipment, second flow is set produces parameter, and send it to network test equipment, the flow of network test equipment produces control module and receives this second flow generation parameter, and produces parameter generating flow so that tested equipment is carried out flow rate test according to second this flow.
9. network test system as claimed in claim 8 is characterized in that, wherein the management end work station also includes a network model design module and is used for the planned network simulation model.
10. network test system as claimed in claim 9 is characterized in that, wherein the management end work station network simulation model that design can be finished sends network test equipment to, and network test equipment is stored in it in network simulation model storehouse.
11. network test system as claimed in claim 10 is characterized in that, wherein emulation testing parameter comprises that network simulation model, procotol and first flow produce parameter.
12. network test system as claimed in claim 8 is characterized in that, wherein second flow produces parameter and can include flow rate, data packet content and data packet length.
13. network test system as claimed in claim 12 is characterized in that, wherein the management end work station can be by network or directly is connected with network test equipment.
14. a network test method, it can utilize the 1st described network test equipment of claim to carry out network simulation test and flow rate test, it is characterized in that it includes following step:
(a) network test equipment being set is network simulation test jobs pattern or flow generator work pattern;
(b) when network test equipment is set to network simulation test jobs pattern, can carry out following step:
(b1) utilize the management end work station that is connected in network test equipment that the network simulation test parameter is set, and send this network simulation test parameter to network test equipment;
(b2) the simulation process module of network test equipment receives the network simulation test parameter, and selects network simulation model, procotol and control flows volume production to give birth to according to this network test parameter, tested equipment is carried out the network simulation test;
(c) when network test equipment is set to the flow generator work pattern, can carry out following step:
(c1) utilize the management end work station that second flow is set and produce parameter;
(c2) flow of network test equipment produces control module and receives this second flow generation parameter, and according to this second flow generation parameter generating flow tested equipment is carried out flow rate test.
15. network test method as claimed in claim 14, it is characterized in that, wherein step (b1) also includes by management end work station planned network simulation model, the management end work station sends the network simulation model that design finishes to network test equipment, and network test equipment is stored in step in the network simulation model storehouse with it.
16. network test method as claimed in claim 15 is characterized in that, wherein step (b1) network simulation test parameter includes network simulation model, procotol and first flow and produces parameter.
17. network test method as claimed in claim 14 is characterized in that, wherein second flow of step (c1) produces parameter and can include flow rate, data packet content and data packet length.
18. network test system as claimed in claim 17, it is characterized in that, wherein step (c2) also includes flow generation control module and produces parameter generation flow generation instruction according to flow, and the flow generation device of network test equipment is according to the step of this flow generation instruction generation flow.
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| CNB02151772XA CN100486182C (en) | 2002-12-28 | 2002-12-28 | Network test equipment, system and method |
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| CN1163019C (en) * | 2001-03-16 | 2004-08-18 | 北京亿阳巨龙智能网技术有限公司 | Network intercommunication service emulator |
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