CN106161067A - The method of testing of a kind of webmaster node statistics and system - Google Patents
The method of testing of a kind of webmaster node statistics and system Download PDFInfo
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Abstract
The invention discloses the method for testing of a kind of webmaster node statistics, including: the first statistical value of described webmaster node is read in the first moment, the second statistical value of described webmaster node is read in the second moment, first and second moment was two moment beating stream constant rate, second moment and the integral multiple that time difference is the webmaster node data update cycle in the first moment, described first statistical value and the second statistical value are the numerical value of webmaster statistics；The actual value that in utilizing packet catcher to add up for the 3rd moment to the 4th time period in moment, described webmaster node is corresponding, third and fourth moment is two moment beating stream constant rate, and the 4th moment is equal with the time difference in the first moment with the second moment with the time difference in the 3rd moment；Difference between described first statistical value and described second statistical value add up actual value corresponding for described webmaster node and webmaster compares.The present invention further simultaneously discloses a kind of system realizing described method.
Description
Technical field
The present invention relates to network management test technical field, particularly relate to a kind of webmaster node statistics method of testing and
System.
Background technology
In prior art, network manager realizes the monitoring to the network equipment by network management system, is monitored and sets
Standby timing reports the status data of self or network to network management system, the state that network management system is reported by collection
Data realize equipment and the monitoring of network.These status datas are each by consersion unit or network operation situation
Planting parameter group to become, each parameter is referred to as webmaster node here.
Whether the parameter of the webmaster nodes records of equipment is consistent with actual, needs to be checked by the method for test.
The webmaster node of a part of data flow quantity statistical, such as: the byte number that device port receives, uses traditional side
Method cannot accurately survey standard, this is because:
1) in network in addition to having equipment under test data message, also have management control protocol message, described quilt
The transmission T/A of measurement equipment data message is controlled, and the transmission time of described management control protocol message
Uncontrollable with quantity, but the cura generalis not received by equipment under test during actual test controls association
Including view counting messages, test error is bigger；
2) webmaster node is not real-time to the statistics of network and device parameter, but is spaced according to setting cycle
Carry out adding up and reporting being test for parameter, and webmaster node data update and statistical test asynchronous operation,
Cause test error bigger.
Summary of the invention
For solving the technical problem of existing existence, embodiments provide the survey of a kind of webmaster node statistics
Method for testing and system.
Embodiments providing the method for testing of a kind of webmaster node statistics, the method includes:
Read the first statistical value of described webmaster node in the first moment, read described webmaster joint in the second moment
Second statistical value of point, described first and second moment is two moment beating stream constant rate, when described second
Carve and the integral multiple that time difference is the described webmaster node data update cycle in described first moment, described first
Statistical value and described second statistical value are the numerical value of webmaster statistics；
The reality that in utilizing packet catcher to add up for the 3rd moment to the 4th time period in moment, described webmaster node is corresponding
Value, third and fourth moment described is two moment beating stream constant rate, described 4th moment and the 3rd moment
Time difference equal with the time difference in the first moment with described second moment；
By described first statistical value of actual value corresponding for described webmaster node and described webmaster statistics and described the
Difference between two statistical values compares.
In one embodiment, described first moment and described 3rd moment are the most in the same time, described second moment
It is the most in the same time with described 4th moment.
In one embodiment, described first moment and described 3rd moment are synchronization, described second moment
It is synchronization with described 4th moment.
In one embodiment, the method also includes:
Before starting to read the statistical value of webmaster node and start packet capturing, start to perform to beat flow operation, at knot
Bundle reads the statistical value of webmaster node or terminates after packet capturing, terminates described to beat flow operation；
Described beat flow operation, arrive via switch for the tested network equipment setting up described webmaster node corresponding
Data stream between other network equipment.
Wherein, in utilizing packet catcher the 3rd moment to the 4th time period in moment of statistics, described webmaster node is corresponding
Actual value, including:
Capture all data messages in the 3rd moment to the 4th time period in moment, and according to presetting mark from grabbing
The all data messages taken filter out the data message of described webmaster node to be counted, described default mark
For the data message of described webmaster node to be counted is made a distinction with other data message；According to sieving
The data message selected calculates the actual value corresponding with described webmaster node statistics value.
Wherein, the data message of webmaster node to be counted includes: data message and the management of beating stream control
Protocol massages.
The embodiment of the present invention additionally provides the test system of a kind of webmaster node statistics, and this system includes: read
Unit, crawl statistic unit and comparing unit；Wherein,
Described reading unit, for reading the first statistical value of described webmaster node, second in the first moment
Moment reads the second statistical value of described webmaster node, and described first and second moment is beat stream constant rate two
In the individual moment, described second moment is the described webmaster node data update cycle with the time difference in described first moment
Integral multiple, described first statistical value and described second statistical value be webmaster statistics numerical value；
Described crawl statistic unit, in being used for utilizing packet catcher the 3rd moment to the 4th time period in moment of statistics
The actual value that described webmaster node is corresponding, third and fourth moment described is two moment beating stream constant rate,
Described 4th moment is equal with the time difference in the first moment with described second moment with the time difference in the 3rd moment；
Described comparing unit, described in adding up actual value corresponding for described webmaster node and described webmaster
Difference between first statistical value and described second statistical value compares.
In one embodiment, described first moment and described 3rd moment are the most in the same time, described second moment
It is the most in the same time with described 4th moment.
In one embodiment, described first moment and described 3rd moment are synchronization, described second moment
It is synchronization with described 4th moment.
In one embodiment, this system also includes: beat stream unit, for starting to read the system of webmaster node
Before evaluation and beginning packet capturing, start to perform to beat flow operation, terminating to read statistical value or the knot of webmaster node
After bundle packet capturing, terminate described to beat flow operation；
Described beat flow operation, arrive via switch for the tested network equipment setting up described webmaster node corresponding
Data stream between other network equipment.
The method of testing of the webmaster node statistics that the embodiment of the present invention provides and system, read institute in the first moment
State the first statistical value of webmaster node, read the second statistical value of described webmaster node in the second moment, described
First and second moment was two moment beating stream constant rate, described second moment and described first moment time
Between difference be the integral multiple of described webmaster node data update cycle, described first statistical value and described second statistics
It is worth the numerical value for webmaster statistics；Utilize described net in packet catcher the 3rd moment to the 4th time period in moment of statistics
The actual value that pipe node is corresponding, third and fourth moment described is two moment beating stream constant rate, described the
Four moment are equal with the time difference in the first moment with described second moment with the time difference in the 3rd moment；By described
Described first statistical value of actual value corresponding to webmaster node and described webmaster statistics and described second statistical value it
Between difference compare.The embodiment of the present invention overcomes test operation and webmaster node in conventional test methodologies
Data update the asynchronous management caused and control the problem of message leakage statistics, and test accuracy is substantially improved, by mistake
Difference levels off to zero；Meanwhile, webmaster node data reads and packet capturing can be performed separately independent operation, testing process
Relatively easy, it is simple to accomplish accurately to control, easily perform；It addition, embodiment of the present invention measurement error and survey
The concrete operations of examination are unrelated, and test is essentially identical every time, and error is constant, it is simple to the statistics of error and estimation.
Accompanying drawing explanation
In accompanying drawing (it is not necessarily drawn to scale), similar reference can be at different views
Described in similar parts.The similar reference numerals with different letter suffix can represent the difference of similar component
Example.Accompanying drawing generally shows each embodiment discussed herein by way of example and not limitation.
Fig. 1 is the method flowchart of statistical test webmaster node described in the embodiment of the present invention；
Fig. 2 is the system structure schematic diagram of statistical test webmaster node described in the embodiment of the present invention；
Fig. 3 is the system structure schematic diagram of statistical test webmaster node described in another embodiment of the present invention；
Fig. 4 is the network topological diagram of conventional test methodologies；
Fig. 5 is the demonstration graph of conventional test methodologies；
Fig. 6 is that conventional test methodologies tests inaccurate case study demonstration graph；
Fig. 7 is the demonstration graph of method of testing described in the concrete application scenarios of the present invention.
Detailed description of the invention
In embodiments of the invention, read the first statistical value of described webmaster node in the first moment, second
Moment reads the second statistical value of described webmaster node, and described first and second moment is beat stream constant rate two
In the individual moment, described second moment is the described webmaster node data update cycle with the time difference in described first moment
Integral multiple, described first statistical value and described second statistical value be webmaster statistics numerical value；Utilize packet capturing work
Actual value corresponding to described webmaster node in tool the 3rd moment to the 4th time period in moment of statistics, described 3rd,
Four moment were two moment beating stream constant rate, and the time difference in described 4th moment and the 3rd moment is with described
Second moment is equal with the time difference in the first moment；By packet capturing statistical value and described the first of described webmaster statistics
Difference between statistical value and described second statistical value compares.
Below in conjunction with the accompanying drawings and the present invention is described in further detail by specific embodiment.
Fig. 1 is the method flowchart of statistical test webmaster node described in the embodiment of the present invention, such as Fig. 1 institute
Showing, the method includes:
Step 101: read the first statistical value of described webmaster node in the first moment, read in the second moment
Second statistical value of described webmaster node, described first and second moment is two moment beating stream constant rate,
Described second moment and the integer that time difference is the described webmaster node data update cycle in described first moment
Times, described first statistical value and described second statistical value are the numerical value of webmaster statistics；
Step 102: utilize described webmaster node in packet catcher the 3rd moment to the 4th time period in moment of statistics
Corresponding actual value, third and fourth moment described is two moment beating stream constant rate, described 4th moment
Equal with the time difference in the first moment with described second moment with the time difference in the 3rd moment；
Step 103: by described first statistics of actual value corresponding for described webmaster node with described webmaster statistics
Difference between value and described second statistical value compares.
The embodiment of the present invention overcomes test operation in conventional test methodologies and updates asynchronous with webmaster node data
The management caused controls the problem of message leakage statistics, and test accuracy is substantially improved, and error levels off to zero.Separately
Outward, embodiment of the present invention measurement error is unrelated with the concrete operations of test, and test is essentially identical every time, error
Constant, it is simple to the statistics of error and estimation.
In one embodiment, described first moment and described 3rd moment are the most in the same time, described second moment
It is the most in the same time with described 4th moment.
Visible, embodiment of the present invention webmaster node data reads and packet capturing can be performed separately independent operation, test
Flow process is relatively easy, it is simple to accomplishes accurately to control, easily performs.
In one embodiment, described first moment and described 3rd moment are synchronization, described second moment
It is synchronization with described 4th moment.
In the embodiment of the present invention, the method also includes:
Before starting to read the statistical value of webmaster node and start packet capturing, start to perform to beat flow operation, at knot
Bundle reads the statistical value of webmaster node or terminates after packet capturing, terminates described to beat flow operation；
Described beat flow operation, arrive via switch for the tested network equipment setting up described webmaster node corresponding
Data stream between other network equipment.
In the embodiment of the present invention, described utilize packet catcher statistics the 3rd moment to the 4th time period in moment in institute
State the actual value that webmaster node is corresponding, including:
Capture all data messages in the 3rd moment to the 4th time period in moment, and according to presetting mark from grabbing
The all data messages taken filter out the data message of described webmaster node to be counted, described default mark
For the data message of described webmaster node to be counted is made a distinction with other data message；According to sieving
The data message selected calculates the actual value corresponding with described webmaster node statistics value
Such as: set described webmaster node to be tested as " byte number that equipment under test port 1 receives ", and grab
In all data messages taken in addition to including that equipment under test port 1 receives data message, also include tested
Device port 1 sends other data messages such as data message.
In the embodiment of the present invention, the data message of described webmaster node to be counted includes: beat the data of stream
Message and management control protocol message.
The embodiment of the present invention additionally provides the test system of a kind of webmaster node statistics, as in figure 2 it is shown, this is
System includes: reads unit 201, capture statistic unit 202 and comparing unit 203；Wherein,
Described reading unit 201, for reading the first statistical value of described webmaster node in the first moment,
Second moment read the second statistical value of described webmaster node, and described first and second moment is for beating stream constant rate
Two moment, the time difference in described second moment and described first moment is that described webmaster node data updates
The integral multiple in cycle, described first statistical value and described second statistical value are the numerical value of webmaster statistics；
Described crawl statistic unit 202, is used for utilizing packet catcher the 3rd moment of statistics to the 4th time in moment
The actual value that in section, described webmaster node is corresponding, when third and fourth moment described is beat stream constant rate two
Carve, described 4th moment and the time difference in the 3rd moment and described second moment and the time difference phase in the first moment
Deng；
Described comparing unit 203, for by actual value corresponding for described webmaster node and described webmaster statistics
Difference between described first statistical value and described second statistical value compares.
The embodiment of the present invention overcomes test operation in conventional test methodologies and updates asynchronous with webmaster node data
The management caused controls the problem of message leakage statistics, and test accuracy is substantially improved, and error levels off to zero.Separately
Outward, embodiment of the present invention measurement error is unrelated with the concrete operations of test, and test is essentially identical every time, error
Constant, it is simple to the statistics of error and estimation.
In one embodiment, described first moment and described 3rd moment are the most in the same time, described second moment
It is the most in the same time with described 4th moment.
Visible, embodiment of the present invention webmaster node data reads and packet capturing can be performed separately independent operation, test
Flow process is relatively easy, it is simple to accomplishes accurately to control, easily performs.
In one embodiment, described first moment and described 3rd moment are synchronization, described second moment
It is synchronization with described 4th moment.
In one embodiment, as it is shown on figure 3, this system also includes: beat stream unit 204, for starting
Before reading statistical value and the beginning packet capturing of webmaster node, start to perform to beat flow operation, read webmaster in end
The statistical value of node or after terminating packet capturing, terminates described to beat flow operation；
Described beat flow operation, arrive via switch for the tested network equipment setting up described webmaster node corresponding
Data stream between other network equipment.
In the embodiment of the present invention, described crawl statistic unit 202 utilizes packet catcher the 3rd moment of statistics to the
The actual value that in four time periods in moment, described webmaster node is corresponding, including:
Capture all data messages in the 3rd moment to the 4th time period in moment, and according to presetting mark from grabbing
The all data messages taken filter out the data message of described webmaster node to be counted, described default mark
For the data message of described webmaster node to be counted is made a distinction with other data message；According to sieving
The data message selected calculates the actual value corresponding with described webmaster node statistics value.
Wherein, the data message of described webmaster node to be counted includes: play data message and the management of stream
Control protocol message.
In order to clearer, the embodiment of the present invention is described, first below the survey to traditional webmaster node
Method for testing is described, the network topological diagram of conventional test methodologies as shown in Figure 4, in conjunction with Fig. 5, and with net
Pipe node illustrates for as a example by " byte number that equipment under test port 1 receives ", and testing process is as follows:
Step one: " equipment under test port 1 receives to read webmaster node by network management system simulator 401
Byte number " value, be designated as A, start packet catcher 402 and capture the port 1 of described equipment under test 403 and connect
The packet received, utilization simultaneously is made stream instrument 404 and is set up from other network equipment 405 to equipment under test 403
Data stream；
Step 2: after beating stream a period of time, operation is played stream instrument 404 stopping and being beaten stream, operates packet catcher simultaneously
402 stop packet capturing, and from the entire packet captured, screening counts the data word that equipment under test 403 receives
Joint number, is designated as B, the byte number actually received as equipment under test port 1 by B；
Step 3: prolong a webmaster node data update cycle after the packet capturing stop timing (in order to stream will be beaten
Including data message statistics), read webmaster node " equipment under test port 1 by network management system simulator 401
The byte number received " value be to be designated as C；
Step 4: beating webmaster node " byte number that equipment under test port 1 receives " during flowing is D=C-A,
The byte number that the equipment under test port 1 that D value is added up for network management system receives；
Step 5: whether compare B equal to D.
As shown in Figure 6, the data message that equipment under test port 1 receives includes: play flow data message and management
Control protocol message, in Fig. 6 black region be port 1 receive beat flow data message, gray area for hold
The management control protocol message that mouth 1 receives.Beat flow data stream can by by beat stream instrument control produce and termination,
After playing stream termination, equipment under test port 1 no longer receives and beats flow data message.Management control protocol message is to protect
The barrier properly functioning network management of network and the mutual message of control protocol, exist the most always, be not subject to
The control of tester.The statistical value of webmaster node updates with cycle T for interval: updating on point,
Webmaster node performs statistics according to the excitation received before this time point and is calculated the assignment of this node；But
It is that between twice renewal, any instant reads " the data word joint number that equipment under test port 1 receives " from webmaster
It it is all the front value once updated.
Webmaster node reading D is the statistics to the byte number that equipment under test in three T time sections receives, therefore
In order to whether Test Network pipe node D adds up correct, it should by compared with D with E rather than by D with grab
The byte number B that bag captures compares, and a part is managed control protocol message and miss out by B, the most traditional
There is test error in testing scheme.
If it is inferred that reading webmaster node data for the first time, starting to beat stream packet capturing and webmaster node data
Renewal three occurs at synchronization and beats stream packet capturing stopping, second time reading webmaster node data and webmaster joint
Point data updates three and frees at synchronization, and test error is zero.But the situation of this synchronization is in reality
Test operation in cannot realize, therefore test operation and webmaster node data update the most not
Synchronize result in the existence of test error.
In reality is tested, read webmaster node data for the first time, start to beat stream packet capturing and webmaster node data
Uncontrollable with the relative position that webmaster node data updates in time, play stream packet capturing and stop, reading for the second time
Take webmaster node data uncontrollable with the relative position that webmaster node data updates in time.Therefore test
Error is tested the most different every time, and test error is non-constant, is specifically dependent upon packet capturing and starts to terminate with packet capturing
Opportunity, test error fluctuation is very big, and the assessment for equipment under test brings difficulty.
It addition, traditional method of testing " starts to play stream packet capturing " after requiring " reading webmaster node data " immediately,
Time difference between two actions is the smaller the better, and test operation gets up bad control, and operating process is relative complex.
Visible, in conventional test methodologies, because test operation (starts to play stream packet capturing, play stream packet capturing stopping, reading
Take webmaster node data) with webmaster node data update cannot be synchronize, cause management control message leakage statistics from
And form measurement error.
Being substantially invariable in view of beat flow data message controlling message rate with management, therefore persistently beating stream
On the premise of, arbitrarily with the packet of crawl in the time period of webmaster node data update cycle T-phase etc.
Number or byte number are the most equal.In therefore, using any T time section of crawl (or the integral multiple time period of T
In) byte number that receives of equipment under test port 1 " is devices under the word that port 1 receives with webmaster node
Joint number " statistical value compare, it is possible to realize the accurate test to this webmaster node.
Describe the present invention below in conjunction with concrete application scenarios.
The method of scene of the present invention need not test operation (packet capturing starts, packet capturing terminates) and webmaster nodes
According to updating time synchronized, testing process is following (with webmaster node " byte number that equipment under test port 1 receives "
As a example by):
Step one: employing is made stream instrument and set up other network equipment via the number between switch to equipment under test
According to stream；
Step 2: after beating stream constant rate, " equipment under test port 1 receives random reading webmaster node
Byte number " value added up is A, waits that the one T1 period (T1 is the integral multiple of T) reads another value,
It is designated as A1, calculates E=A1-A；E is the byte number that the equipment under test port 1 that network management system is added up receives；
Step 3: the packet using packet catcher to capture in any one T1 time period (includes beating the number of stream
According to message and management control protocol message), and to add up whole byte numbers that tested port 1 receives be B, and will
The byte number that B actually receives as equipment under test port 1；
Step 4: compared with E with B.
In the method for testing of the embodiment of the present invention, owing to beating speed and the management control protocol report of flow data message
The speed substantially constant of literary composition, webmaster node " byte number that equipment under test port receives " should in T time
The byte number E of statistics is almost equal with the byte number B that packet catcher captures in T time, as it is shown in fig. 7,
In Fig. 7 black region be port 1 receive beat flow data message, gray area be port 1 reception management
Control protocol message, as a example by test packet capturing duration thinks a network management data update cycle T, therefore tests by mistake
Difference is close to zero, and compares conventional test methodologies test error and is substantially reduced.
The test error of the embodiment of the present invention only and is beaten the speed of flow data message and manages control message rate
Slight fluctuations is relevant, with test operation (read webmaster node data, start packet capturing, stopping packet capturing) and net
The relative time of pipe node data renewable time is unrelated.Therefore, each test error substantially constant.
Independently operate it addition, the reading of webmaster node data and packet capturing separate, step of the most not seeking common ground,
Testing process is relatively easy, it is simple to accomplishes accurately to control, easily performs.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use hardware embodiment, software implementation or combine software and
The form of the embodiment of hardware aspect.And, the present invention can use and wherein include calculating one or more
The computer-usable storage medium of machine usable program code (includes but not limited to disk memory and optical storage
Device etc.) form of the upper computer program implemented.
The present invention is with reference to method, equipment (system) and computer program according to embodiments of the present invention
Flow chart and/or block diagram describe.It should be understood that can be by computer program instructions flowchart and/or side
Flow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or the knot of square frame
Close.Can provide these computer program instructions to general purpose computer, special-purpose computer, Embedded Processor or
The processor of other programmable data processing device is to produce a machine so that by computer or other can
The instruction that the processor of programming data processing equipment performs produces for realizing in one flow process or multiple of flow chart
The device of the function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device
In the computer-readable memory worked in a specific way so that be stored in this computer-readable memory
Instruction produces the manufacture including command device, and this command device realizes at one flow process of flow chart or multiple stream
The function specified in journey and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices
Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one
The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the protection model of the present invention
Enclose.
Claims (10)
1. the method for testing of a webmaster node statistics, it is characterised in that the method includes:
Read the first statistical value of described webmaster node in the first moment, read described webmaster joint in the second moment
Second statistical value of point, described first moment, the second moment are two moment beating stream constant rate, described
Second moment and the integral multiple that time difference is the described webmaster node data update cycle in described first moment, institute
State the first statistical value and described second statistical value is the numerical value that webmaster is added up；
The reality that in utilizing packet catcher to add up for the 3rd moment to the 4th time period in moment, described webmaster node is corresponding
Value, described 3rd moment, the 4th moment are two moment beating stream constant rate, described 4th moment and the
The time difference in three moment is equal with the time difference in the first moment with described second moment；
By described first statistical value of actual value corresponding for described webmaster node and described webmaster statistics and described the
Difference between two statistical values compares.
Method the most according to claim 1, it is characterised in that when described first moment is with the described 3rd
Carving as the most in the same time, described second moment and described 4th moment are the most in the same time.
Method the most according to claim 1, it is characterised in that when described first moment is with the described 3rd
Carving as synchronization, described second moment and described 4th moment is synchronization.
Method the most according to claim 1, it is characterised in that the method also includes:
Before starting to read the statistical value of webmaster node and start packet capturing, start to perform to beat flow operation, at knot
Bundle reads the statistical value of webmaster node or terminates after packet capturing, terminates described to beat flow operation；
Described beat flow operation, arrive via switch for the tested network equipment setting up described webmaster node corresponding
Data stream between other network equipment.
Method the most according to claim 1, it is characterised in that described utilize packet catcher statistics the 3rd
The actual value that in moment to the 4th time period in moment, described webmaster node is corresponding, including:
Capture all data messages in the 3rd moment to the 4th time period in moment, and according to presetting mark from grabbing
The all data messages taken filter out the data message of described webmaster node to be counted, described default mark
For the data message of described webmaster node to be counted is made a distinction with other data message；According to sieving
The data message selected calculates the actual value corresponding with described webmaster node statistics value.
Method the most according to claim 1, it is characterised in that the number of described webmaster node to be counted
Include according to message: beat data message and the management control protocol message of stream.
7. the test system of a webmaster node statistics, it is characterised in that this system includes: reading unit,
Capture statistic unit and comparing unit；Wherein,
Described reading unit, for reading the first statistical value of described webmaster node, second in the first moment
Moment reads the second statistical value of described webmaster node, and described first moment, the second moment are for beating flow velocity rate perseverance
Two fixed moment, the time difference in described second moment and described first moment be described webmaster node data more
The integral multiple in new cycle, described first statistical value and described second statistical value are the numerical value of webmaster statistics；
Described crawl statistic unit, in being used for utilizing packet catcher the 3rd moment to the 4th time period in moment of statistics
The actual value that described webmaster node is corresponding, described 3rd moment, the 4th moment are beat stream constant rate two
The time difference in moment, described 4th moment and the 3rd moment and described second moment and the time difference in the first moment
Equal；
Described comparing unit, described in adding up actual value corresponding for described webmaster node and described webmaster
Difference between first statistical value and described second statistical value compares.
System the most according to claim 7, it is characterised in that when described first moment is with the described 3rd
Carving as the most in the same time, described second moment and described 4th moment are the most in the same time.
System the most according to claim 7, it is characterised in that when described first moment is with the described 3rd
Carving as synchronization, described second moment and described 4th moment is synchronization.
System the most according to claim 7, it is characterised in that this system also includes: beat stream unit,
For before starting to read the statistical value of webmaster node and start packet capturing, start to perform to beat flow operation, at knot
Bundle reads the statistical value of webmaster node or terminates after packet capturing, terminates described to beat flow operation；
Described beat flow operation, arrive via switch for the tested network equipment setting up described webmaster node corresponding
Data stream between other network equipment.
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