CN109587011A - Multifunctional network ability meter and test method - Google Patents

Abstract

The invention discloses multifunctional network ability meter and test methods, including tester ontology, the tester ontology is the military notebook for adding high-accuracy data collection card, the high-accuracy data collection card includes four 10/100/1000Mbps Ethernet interfaces for packet capturing, the input port when external interface of the high-accuracy data collection card includes four 10/100/1000Mbps network interfaces and a code school B.Beneficial effects of the present invention: multifunctional network ability meter installs high-accuracy data collection card additional on military reinforced notebook computer, realizes portable network performance mobile test；The business data packet for sending various formats, the transmission rate specified according to user, packet length, protocol contents etc. can also be simulated, all round properties monitoring is carried out to network；Both it can also be added to NPM system, used as average probe with independent operating.

Description

Multifunctional network ability meter and test method

Technical field

The present invention relates to network communication technology fields, relate in particular to multifunctional network ability meter and test side Method.

Background technique

Existing network performance monitoring and operational trials system (NPM system), using 1+N mode distributed deployment, 1 net Network operation center disposes N number of network probe in remote site, is connected to the bypass interface of interchanger and router, captures network Data packet calculates network performance, report network operation center.The system is widely applied in the service network of user, is obtained Good benefit.In use, it was found that some problems:

Packet loss once is had found in some temporary site, is occurred once in a while without rule, network topological diagram is referring to attached drawing 1.Fortune With one data processor of exclusive method preliminary latch, but the equipment is very mature very stable organized equipment, extensive in service network Using not going out problem.We acquire the interchanger bypass data packet at the equipment both ends with network probe simultaneously, compare frame by frame.By It requires to handle by the equipment in the data packet that business device issues, communication format has adjusted, and Content of Communication is changed beyond recognition, gives Comparison brings very big difficulty.We utilize network probe flexible setting parameter, have selected two tuples (source IP, destination IP) and are supervised It surveys.The frame number for counting both ends respectively, captures packet loss after tracking a period of time.Network probe is by the data packet of loss and adjacent Several frames in front and back export together, analyze through field technician and equipment development side, since the website is the route temporarily rented, Bandwidth is limited, has carried out current limliting to communication process.The maximum flow of business device B, because bandwidth limited, data are gradually accumulated shape At ultra-long data packet, fragment packets are cut into communication.By chance branch's journey of the fragment process flow of data processor There are BUG to trigger internal abnormality for sequence, and fragment packets are dropped, and causes packet loss.Under normal circumstances, bandwidth be enough will not be into Enter this BUG branch, so not going out problem, BUG, no longer packet loss have repaired quickly in development side.It can be seen that fixed The communication condition of website compares preferably, and network problem is less, is interim place instead or is mobile site, network probe Bigger effect can be played.

It also found a communication delay unstable situation bigger than normal, we use 4 each sections of port processing of network probe The data packet of section checks time delay distribution situation, and gradually investigation finds two terminal delay time of light anchor arrangement of a responsible photoelectric conversion not Stablize.Through inquiring plant maintenance personnel, the stand-by equipment strictly newly replaced.After replacing a new light anchor again, time delay is restored Normally, troubleshooting.

In addition one more user carries network probe and goes to sea with ship, and it is very normal always to monitor network performance, but visits Needle has found and once wraps again that is, same data packet has sent twice.For conventional communication, packet meeting nature is removed again, very Successive order of transmission can be generated to different routings to overturn, and will not influence communication.But customer service net does not allow but to repeat. After we navigate to the data packet, reason is begun looking for, the business device of source only has sent once really, and interchanger etc. is various Is network equipment working state also all normal, and where is the problem? by understanding, the business network of user uses active and standby side Formula, user had found one piece of card work less stable of backup switch at that time, determined replacement.Interchanger support is hot-swappable, and And be backup switch, it will not influence work, therefore just replace.As a result it by chance produces and wraps again at this time, warp and interchanger Technical staff's productive discussions, be the discovery that the card newly changed is not connected with primary interchanger, primary interchanger forwarded This data packet, but the new of backup switch changes card also while forwarded this data packet, wraps again to produce.Later, newly Card realizes synchronous with primary interchanger, and hence into stand-by state, failure no longer occurs.

Above three example (packet loss, time delay are bigger than normal, wrap again) is summarized, user proposes the need of mobile network performance test It asks.In fact, many producer such as Fluke possess a plurality of portable tester tables, according to RFC2544 performance test standard to network Performance indicator tested and measured, be widely applied in network management personnel.But test instrumentation be only suitable for it is quiet State test, reflection is performance indicator in test process, and cannot reflect the true actual conditions of network.Such as front this Example is difficult to trace into ready-made test instrumentation.Even if the most powerful network synthesis analyzer OptiView system of function Column also can only be the data for first acquiring a period of time, do protocal analysis after stopping again, be difficult to come across during data acquire Packet loss.The demand of user can only be on line real time network performance.

Summary of the invention

For the problems in the relevant technologies, the present invention proposes multifunctional network ability meter and test method, solves state Interior existing network performance monitoring and operational trials system cannot achieve the problem of portable test, on-line testing and Network test.

In order to achieve the above technical purposes, the technical scheme is that it is such:

Multifunctional network ability meter, including tester ontology, the tester ontology are to add high accuracy data The military notebook of capture card, the high-accuracy data collection card include four 10/100/1000Mbps ether for packet capturing Network interface, the external interface of the high-accuracy data collection card include four 10/100/1000Mbps network interfaces and a B code Input port when school.

Using the test method of multifunctional network ability meter, carry out specifically including three kinds of Working moulds when network test Formula: On-line sampling system mode, active test pattern and Network test mode；

The specific testing procedure of the On-line sampling system mode are as follows: distinguish four channels of high-accuracy data collection card It is connected to the bypass interface of respective switch I or router I, passive measurement captures data packet, stamps precisely for each data packet Timestamp, according to application layer (agreement, port, the specific value of data field), transport layer and IP address argument, to capture data packet Validity checking is carried out, classified to valid data, network performance calculating, counted and show, and records statistics and calculates knot Fruit carries out early warning and record to invalid data；

The specific testing procedure of the active test pattern are as follows: multifunctional network ability meter receives user's input first Specified transmission parameter, creates part analog service data packet, and each data packet is arranged estimated sending instant, adds in the packet Add sending time (it is expected that sending instant) and packet serial number, be transmitted on high-accuracy data collection card, high-accuracy data collection card is read It takes current time with it is expected that compared with sending instant, has not timed out, wait, time is up just sends, more after being once sent completely Functional network ability meter creates second batch data packet again, sends, the packet number specified until having sent all users, Or persistently meet total sending time that user specifies (such as: user requires to continuously transmit 30 minutes analog service packets)；

The specific testing procedure of the Network test mode are as follows: connect each channel of multifunctional network ability meter After configuration, it is registered to network operation center, network operation center sending measuring task, high-accuracy data collection card is using actively It measures analog service test or passive measurement captures data packet, passive measurement capture data packet carries out reporting test result, network Performance evaluation carries out data storage, and invalid data is alerted, and nullifies after measurement from network operation center III.

Further, a mirror image entrance, mirror is arranged in the interchanger I and router I during On-line sampling system As outlet or mirror image entrance.

Further, the data packet that multifunctional network ability meter issues during actively testing is through multiple switch II, network probe X, network probe Y, network probe Z reach network operation center II.

Beneficial effects of the present invention: " plug and play " acquires network packet in real time, parses network protocol, measurement and calculating Network performance parameter is analysis system on network performance evaluation (the English name Network Performance to distributed 1+N mode Monitor System, referred to as " NPM system ") simplification version, both can work independently or be connected into system, as one Network probe uses；Military reinforced notebook computer is selected, high-accuracy data collection card is installed additional, realizes movable application, tester The business data packet for sending various formats can also be simulated, user specifies transmission rate, packet length, protocol contents etc., carries out to network All round properties monitoring.

Detailed description of the invention

It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is data processor packet loss investigation schematic diagram in background technique according to the present invention；

Fig. 2 is the side view of the multifunctional network ability meter according to embodiments of the present invention；

Fig. 3 is the work flow diagram of the On-line sampling system mode according to embodiments of the present invention；

Fig. 4 is schematic diagram of the On-line sampling system mode in concrete application scene according to embodiments of the present invention；

Fig. 5 is the work flow diagram of the active test pattern according to embodiments of the present invention；

Fig. 6 is schematic diagram of the institute's active test pattern according to embodiments of the present invention in concrete application scene；

Fig. 7 is the work flow diagram of the Network test mode according to embodiments of the present invention；

Fig. 8 is schematic diagram of the Network test mode in concrete application scene according to embodiments of the present invention.

In figure:

1, multifunctional network ability meter；21, router I；22, interchanger I；23, business device A；24, business device B；25, business outer net I；26, firewall；31, network probe X；32, network probe Y；33, network probe Z；34, in network operation Heart II；35, business outer net II；41, fixed station A；42, fixed station B；43, movement station C；44, network probe A；45, network probe B；46, business outer net III；47, network operation center III.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected Range.

As shown in Fig. 2, multifunctional network ability meter, including tester ontology, the tester ontology are to add The military notebook of high-accuracy data collection card, the high-accuracy data collection card include four 10/100/ for packet capturing 1000Mbps Ethernet interface, the external interface of the high-accuracy data collection card include four 10/100/1000Mbps networks Input port when interface and a code school B.

Military reinforced notebook computer: the main structure material of reinforced notebook computer uses aerolite, and surface conductance oxidation is yellow Spray painting processing, Airtightness processing, signaling interface are with characteristics such as dustproof and waterproofs.

Notebook uses tetra- core of separate CPU i7, eight thread processor, 32G memory.It ensure that the height of tester software operation Performance and good scalability.

Notebook is equipped with 7200 turns of mechanical hard disks of 4TB enterprise-level, can store enough data, returns to convenient for user It is analysed in depth and is studied behind base.

Notebook uses diversified interface, there is 2 gigabit network interfaces, 2 USB2.0 interfaces, 4 USB3.0 interfaces, and 2 8 road GPIO of serial ports.

Notebook uses key mouse integral type military products waterproff keyboard, and parameter is as follows:

Performance: push button longevity: >+1,000 ten thousand times

Electromagnetic compatibility standard: IEC61000-4-2:2008；IEC61000-4-3:2006+AI:2007+A2:2010； IEC 61000-4-4:2004

Salt spray test: 96 hours, IEC 60512-6

Signal transmission: USB operating temperature: -20 DEG C to+60 DEG C

Storage temperature: -30 DEG C 90 DEG C of to

Relative humidity: 100%

Atmospheric pressure: 60-106Kpa

Salt spray test: 96 hours, IEC 60512-6

High humidity is tested at 40 DEG C: 21 days, IEC 60512-6

Height dry test at 85 DEG C: 10 days, IEC 60512-6

Environmental suitability:

The operating temperature of notebook

Low temperature: -20 DEG C；

High temperature :+55 DEG C；

Storage temperature

Low temperature: -30 DEG C；

High temperature :+60 DEG C；

Protective performance

Degree of protection: IP65

These parameters can satisfy to be worked normally on a large scale from northeast to Hainan.Degree of protection index avoids dust storm erosion And salt air corrosion, extend the service life of equipment.

In order to reach environmental suitability, notebook draws the type of being made, portable construction, firm, heat dissipation using high density aviation aluminium Fastly, good heat dissipation effect can also be reached under the high temperature conditions.

The body structure surface of notebook uses electric conductive oxidation working process, can effectively completely cut off electromagnetic interference, and power supply interface uses The military air plug connection of profession, display, key mouse integration use electromagnetic shielding silica gel keyboard, Airtightness processing, and signal connects Mouth is with characteristics such as dustproof and waterproofs.It is switched provided with 2 water-proof metals, 1 is reset type switch, for starting mainboard；1 It is self-locking type switch, for controlling battery, prevents battery from continuing power consumption after mainboard shutdown, play battery capacity protective effect. Metal switch degree of protection: IP65.

The damping shaft product material of flip lid meets ROHS specification, includes elastic slice and friction washer, life of product: 10000 times Within attenuation rate 20%, standard torque 30/40kgf.cm, 0 °~150 ° of flip angle.

Power-supply filter effectively filters out the frequency other than the frequency point or the frequency point of specific frequency in power supply line, test Voltage: line-ground 160VDC/5S, line-line 500VDC/5S.

Product structure weight :≤8.5kg.This mission of mobile test is surrounded in a word, for portable feature, is formulated corresponding Measure.

Liquid crystal display moderate performance, liquid crystal display major parameter see the table below:

Panel size	15.6 cun
		Panel type	A-Si TFT-LCD, liquid crystal display 16: 9
Resolution ratio	1920*1080
		Contrast	700∶01∶00
Brightness	350cd/m2
		Point away from	0.1935*0.1935
Display area	344.16 (cross) × 193.59 (perpendicular) mm
		Light source type	WLED
The corresponding time	12ms
		Backlight life	50k hours
Power consumption	5W

Display screen and 1920x1080 resolution ratio are when 15 convenient for figure displaying；Luminance contrast parameter is moderate, regardless of in field Under sunlight or under the dim lights such as equipment compartment, it can clearly be brightly displayed measurement parameter and measurement result.

By the aggregate measures more than taking, the environmental suitability of reinforced notebook computer just ensure that.

Embodiment 1:

On-line sampling system is carried out using above-mentioned multifunctional network ability meter 1, as shown in Figure 3-4: the one of user A remote site deploys business device A23 and business device B24, and network connection arrives interchanger I 22, passes through 26 He of firewall Router I 21 is connected with business outer net I 25, is connect by business outer net I 25 with the business device (being not drawn on figure) at center Get up, to realize long-range business operation, the bypass output end of interchanger I 22 and router I 21 are connected to by user Multifunctional network ability meter 1, so that it may carry out real-time measurement.Each business datum issued from business device A23 When packet is by way of interchanger, the meeting mirror image portion bypass output of interchanger I 22 can thus capture this frame number to this tester According to packet, and it is time-stamped.Because the most of of business device A23, business device B24 transmission are real as similar RTP When communication protocol, we can calculate time delay, and judge whether packet loss.As the data packet of capture is more and more, the time Can be calculated after more than 1 second Bao Pin (data packet frame number per second), flow (bit number per second) and delay variation, The performance indicators such as incorrect order rate.On this basis, the distribution situation for counting various network protocols finds out the maximum test stream of time delay Deng statistical result is presented to user with various ways such as figure, tables.

A mirror image entrance, mirror image outlet, mirror image entrance can be set in interchanger I 22 and router I 21.Thus The data between the performance (being issued to local data from center) and local area network internal unit of downlink data can be monitored. Broadcast data, viral transmission data inside local area network etc. can also monitor.

The exhaustively packet capturing of multifunctional network ability meter 1, and it is stored in local, it can be carried out after coming back to the base subsequent Analysis carries out depth analysis to the historical data stream of each network segment, can quickly search the specific transactions in certain section of historical time The transmission situation of data, is analyzed in detail and compares, and is accurately positioned which, that transmission has occurred in which Business Stream is different at moment Often, enhance the technological means of IP network accident analysis and positioning.

Embodiment 2:

Active test, as seen in figs. 5-6, multifunctional network performance test are carried out using multifunctional network ability meter 1 Instrument 1 is located at the remote site of user, which is connected by satellite channel with earth station, then turn ground business outer net and Center is connected.Network probe X31, network probe Y32, network probe Z33 and network operation center II 34 are needed in test process Cooperation, the destination IP which sends are network probe Z33, and earth station on-premise network probe X31, network probe is disposed at center Y32, each frame data packet sent from tester, can be captured, network probe by network probe X31, network probe Y32 Z33 is normally received the frame data, and such time delay index can obtain three measurement results, to obtain the time delay of this router II Distribution situation can also similarly test the parameters such as packet loss, incorrect order, flow simultaneously.By flexible setting Bao Pin, packet is long, tests Time, as soon as by section active test, will appreciate that the performance situation of entire satellite channel.

Embodiment 3:

Network test, as Figure 7-8, multifunctional network ability meter are carried out using multifunctional network ability meter 1 is added to a typical case scene of NPM system, and existing business network contains a central station and fixed station A41, fixation Stand B42, deploys a set of NPM system, comprising: a set of network operation center III47, network probe A44 and network probe B45. It is now interim to enable movement station C43, a playscript with stage directions tester is carried, this tester can log on to network through business outer net III46 Operation center III47 is registered as NPM system probe, receives the order that center issues, the performance indicator result of reporting measurement. It, can also be in this way, user can check comprising the global network situation including movement station C43 in network operation center III47 It checks in detail and is related to the performance indicator situation of movement station C43.After mobile task, nullified from NPM system automatically.

The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (4)

1. multifunctional network ability meter, which is characterized in that including tester ontology, the tester ontology is to add height The military notebook of accuracy data capture card, the high-accuracy data collection card include four 10/100/ for packet capturing 1000Mbps Ethernet interface, the external interface of the high-accuracy data collection card include four 10/100/1000Mbps networks Input port when interface and a code school B.

2. using the test method of multifunctional network ability meter described in claim 1, which is characterized in that carry out network survey Three kinds of operating modes: On-line sampling system mode, active test pattern and Network test mode are specifically included when examination；

The specific testing procedure of the On-line sampling system mode are as follows: be separately connected four channels of high-accuracy data collection card To respective switch I (22) or the bypass interface of router I (21), passive measurement captures data packet, stamps for each data packet Accurately timestamp, according to application layer (agreement, port, the specific value of data field), transport layer and IP address argument, to capture number According to packet carry out validity checking, classified to valid data, network performance calculates, statistics and display, and record statistics and meter It calculates as a result, carrying out early warning and record to invalid data；

The specific testing procedure of the active test pattern are as follows: multifunctional network ability meter (1) receives user's input first Specified transmission parameter, creates part analog service data packet, and each data packet is arranged estimated sending instant, adds in the packet Add sending time and packet serial number, be transmitted on high-accuracy data collection card, high-accuracy data collection card reads current time and pre- Meter sending instant compares, and has not timed out, waits, and time is up just sends, and after being once sent completely, multifunctional network performance is surveyed It tries instrument (1) and creates second batch data packet again, send, the packet number specified until having sent all users, or continue full The total sending time that foot user specifies；

The specific testing procedure of the Network test mode are as follows: connect each channel of multifunctional network ability meter (1) After configuration, it is registered to network operation center, network operation center sending measuring task, high-accuracy data collection card is using actively It measures analog service test or passive measurement captures data packet, passive measurement capture data packet carries out reporting test result, network Performance evaluation carries out data storage, and invalid data is alerted, and nullifies after measurement from network operation center III (47).

3. multifunctional network performance test methods according to claim 2, which is characterized in that the process of On-line sampling system Described in interchanger (22) and router (21) setting mirror image entrance, mirror image outlet or mirror image entrance.

4. multifunctional network performance test methods according to claim 2, which is characterized in that more during actively testing Functional network ability meter (1) issue data packet through multiple switch II, network probe X(31), network probe Y(32), Network probe Z(33) reach network operation center II (34).