CN101022374A - Method and system for on-line testing data network quality - Google Patents
Method and system for on-line testing data network quality Download PDFInfo
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Abstract
A method for carrying out on-line test on quality of digital network includes sending test UDP message to any set of test terminal used as master test terminal by test server, generating simulation flow rate to finalize test items and to obtain test result message with another set of test terminal used as subtest terminal by master test terminal, transmitting test result message to test server and sending configuration message to master test terminal by test server, repeating above said process till all nodes existed with test terminal are tested and generating test statistic report by test server.
Description
Technical field
The present invention relates to the IP network communications field, relate in particular to a kind of method and apparatus that the quality of data network is carried out on-line testing.
Background technology
The network management personnel needs often to test and to assess the own network that makes up, and analyzes and solves network failure, and network is optimized, and assesses network carrying ability and network traffics are integrated, thereby make network operate in optimum state as much as possible.Therefore, the network management personnel needs some instruments, obtains the Key Performance Indicator such as connectedness, throughput, packet loss, congested position of network terminal opposite end, thereby is the phase-split network fault, overcomes network bottleneck, and network is carried out flow optimization provides important evidence.
In the prior art, obtain above-mentioned these performance index mainly in the following ways: many testers are deployed in the network, produce flow by each different tester of Long-distance Control and monitor.This technological means needs huge investment, and means of testing is dumb, can not realize unattended automatic test.
Summary of the invention
The object of the present invention is to provide a kind of network test system and method based on C/S (client/server) structure, by producing the IP flow between the testing server control remote testing terminal, can carry out end-to-end connectedness to any two nodes in the network, throughput, congested position, packet loss time delay etc. is tested, thereby overcomes in the prior art cost height when realizing above-mentioned test, means of testing is dumb, and the shortcoming that can not test automatically.
Based on the foregoing invention purpose, one aspect of the present invention provides a kind of method of the data network quality being carried out on-line testing, this method realizes that with the Duo Tai test terminal that is deployed in key position in the described network described method comprises step by a testing server that is deployed in the described network: the described testing server of a. sends test UDP (User Datagram Protoco (UDP)) message to any test terminal as main test terminal; B. test event with the other test terminal generation emulation flow as time test terminal, is finished in this main test terminal after receiving described test UDP message, obtains the test result message; C. described main test terminal is uploaded to described testing server with the test result message; D. described testing server sends confirmation message to described main test terminal, and analyze network condition between two nodes at described main test terminal and place, inferior test terminal according to the test result message of receiving and network topology, repeated execution of steps a-d, until the node that tests all places, test terminal, testing server generates the test statistics form.
Preferably, described test UDP message comprises the IP of two nodes that needs are tested and the option that needs test index.
Preferably, test event comprises continuity testing and/or remaining bandwidth test and/or packet loss test and/or network delay test between node among the described step b.
Preferably, key position comprises in the described network: the node of close each gateway in the local area network (LAN).
Preferably, the execution of described method is finished by the software that is deployed on testing server and the test terminal.
The present invention provides a kind of system that the data network quality is carried out on-line testing on the other hand, described system comprises a testing server that is deployed in the described network and the Duo Tai test terminal that is deployed in key position in the described network, described testing server deploy has the server test unit, described test terminal deploy has the terminal test unit, described server test unit comprises: the instruction issuing unit is used for sending test UDP message to any test terminal of described test terminal; Described terminal test unit comprises: the interactive testing unit, be used for after receiving described test UDP message, and with the terminal test unit generation emulation flow of an other test terminal, finish test event, obtain the test result message; Uploading unit, be used for described interactive testing unit testing to the test result message be uploaded to described testing server, described server test unit also comprises: analytic unit, send confirmation message to the terminal test unit after being used to receive described test result message, and according to the network condition between the node at test result message of receiving and network topology analytical test terminal place, and generate the test statistics form according to the network condition of all test terminals.
Preferably, described test UDP message comprises the IP of two nodes that needs are tested and the option that needs test index.
Preferably, described test event comprises continuity testing and/or remaining bandwidth test and/or packet loss test and/or network delay test between node.
Preferably, key position comprises in the described network: the node of close each gateway in the local area network (LAN).
Preferably, described server test unit and terminal test unit are software.
Implement the present invention, following beneficial effect arranged:
Adopt the method for the invention and system, compared with prior art, realized emulation testing, do not need to be provided with in addition tester, therefore drop into little (only needing installation testing software to get final product) to the number station terminal to the end-to-end Key Performance Indicator of existing network.Can also be by on testing server, carrying out batch setting and fixed time test function, the realization unattended operation is tested automatically.Can truly reflect network performance by producing the emulation flow, can also test the network performance of different nodes and different time sections (as above netting peak period and non-peak period) simultaneously, being fit to the large enterprise's network users remote corporate network of different offices (as be distributed in) and telecom operators tests the existing network performance of structure, can find network failure, the end-to-end performance of test key node, be network optimization transformation, carry out the QOS strategy, implement traffic engineering strong foundation is provided, so means of testing is flexible.
Description of drawings
Fig. 1 is that the integral body of test macro provided by the invention is formed structure chart;
Fig. 2 is the part composition structure function module map that system forms structure among Fig. 1;
Fig. 3 is the test UDP message field (MFLD) figure of method of testing provided by the invention;
Fig. 4 is that the flow chart of test is set up in testing server and the test terminal in the method for testing provided by the invention;
Fig. 5 is the negotiation test flow chart between two test terminals in the method for testing provided by the invention.
Embodiment
Fig. 1 is that the integral body of test macro provided by the invention is formed structure chart.As shown in the figure, whole test system comprises testing server S and test terminal A-F.Wherein, the test terminal can be a plurality of, is not limited in number represented among the figure.Test terminal A-F is deployed in the key position of network, for example the node place of close each gateway in the local area network (LAN).
With reference to figure 2, form the part of structure for system among Fig. 1 and form the structure function module map.As shown in the figure, described testing server deploy has the server test unit, and described test terminal deploy has the terminal test unit.In a preferred embodiment of the invention, described server test unit and terminal test unit all are software.And the terminal test unit software on each test terminal can issue installation by testing server, so cost is very little.
Described server test unit includes the instruction issuing unit, is used for sending test UDP message to any test terminal (for example A) of described test terminal.And this test terminal that receives this message can be called main test terminal.
Described terminal test unit includes the interactive testing unit, is used for after receiving described test UDP message, with the terminal test unit generation emulation flow of an other test terminal (for example B), finishes test event, obtains the test result message.Test terminal B then can be called time test terminal.It should be noted that, main test terminal is relative with the classification of time test terminal, be that main test terminal or inferior test terminal all might be taken in any test terminal among Fig. 1 in different tests, this depends on testing server sends this test terminal of indication and which another test terminal initiation test in test UDP message and the message to which test terminal.
Described terminal test unit also comprises uploading unit, be used for described interactive testing unit testing to the test result message be uploaded to described testing server.
Described server test unit also includes analytic unit, send confirmation message to the terminal test unit after being used to receive described test result message, and according to the network condition between the node at test result message of receiving and network topology analytical test terminal place, and generate the test statistics form according to the network condition of all test terminals.
With reference to figure 3, be the test UDP message field (MFLD) figure of method of testing provided by the invention.As shown in the figure, in a preferred embodiment of the invention, the test UDP message that testing server sends to the test terminal adopts udp port 2001 and 2002.Wherein request (request) message source port is 2001, and Reply (answer) message source port is 2002.Whole operational orders is that test result all is encapsulated in the data field of this UDP message.The action type sign indicating number is 00 expression request message, i.e. test command message.Command code ff represents to test response message, can represent that also test result uploads message.Command code 01,02,03, but 04 expression general character test respectively, testing throughput, packet loss test, delay testing order.After the command code is respectively the IP address of two test terminals.But corresponding respectively general character test after the IP address of terminal, testing throughput, the packet loss test, test results such as delay testing, and leave expansion.Certainly, during test, promptly can all test above-mentioned test event, also can select any a part of test event.These all fields are fixed position and regular length in UDP message data field, be convenient to computer transmission and read.
With reference to figure 4, be the flow chart of testing server in the method for testing provided by the invention (S) and a test terminal (A) foundation test.As shown in the figure, this flow process comprises the steps:
Step 401:S sends test request UDP message to A (main test terminal), and the IP address that this message comprises test source node and destination node is respectively A and B IP addresses of nodes;
Step 402:A sends Reply UDP message to S after receiving the request message;
Step 403:A begins and Node B (inferior test terminal) is consulted test; (testing process between A and B is estimated to finish within 10 minutes)
Step 404:A, after the testing process between B was finished, A sent to testing server S with test result;
After step 405:S receives the test result message, send affirmation, transmit flow process to set up reliable test to A.If test crash then sends relevant test crash message.S receives the test structure message that A transmits, and reads the wherein A of encapsulation, and two internodal network performances of B carry out statistical analysis.(testing server generates statistical report forms according to per two internodal network performances at last, uses for the network manager for C-D for example, the E-F) above-mentioned steps that reruns between different nodes.
It should be noted that on testing server timed sending test instruction and processing batch instruction can be set, promptly realize under the unattended situation, any two nodes network performance at any time in the energy test network.
With reference to figure 5, be the negotiation test flow chart between two test terminals in the method for testing provided by the invention.As shown in the figure, this flow process comprises:
Step 501:A (main test terminal) sends test command message (promptly testing the UDP message) to B (main test terminal)
Step 502:B sends confirmation message to A after receiving the test command message;
Connect by TCP (transmission control protocol) between step 503:A and the B, A sends data to B, these data are to generate in the internal memory by A, can satisfy the requirement of the required speed of giving out a contract for a project of testing throughput as far as possible, the data volume that can reliably be sent to B in the A unit of account time can draw A, two internodal throughputs of B;
Step 504:A transmission needs ordering to B of test packet loss;
Step 505:B sends a reply message and confirms;
Step 506:A sends 100 UDP message bags to B (this message transmission speed is according to A, and the throughput between B sends), and B can receive one to three test suspended market order after 100 test packets;
The common UDP message number that step 507:B statistics is received is encapsulated in the test UDP message and is sent to A, and A can obtain the internodal packet loss with B;
Step 508:A sends ICMP (Internet Control Message Protocol) Request message 10 times to B;
The time-delay that step 509:A statistics is received each ICMP reply message, promptly be 2 times of network delay between node, after A calculates averaging network time-delay and delay jitter, after B sends the EOT instruction, above-mentioned all results are encapsulated in the UDP message of special use and are sent to testing server.
Above-mentioned description at specific embodiment of the present invention is comparatively detailed, can not therefore think the restriction to patent scope of patent protection of the present invention, and scope of patent protection of the present invention should be as the criterion with claims.
Claims (10)
1. the method that the data network quality is carried out on-line testing is characterized in that, this method realizes that with the Duo Tai test terminal that is deployed in key position in the described network described method comprises step by a testing server that is deployed in the described network:
A. described testing server sends test UDP message to any test terminal as main test terminal;
B. test event with the other test terminal generation emulation flow as time test terminal, is finished in this main test terminal after receiving described test UDP message, obtains the test result message;
C. described main test terminal is uploaded to described testing server with the test result message;
D. described testing server sends confirmation message to described main test terminal, and analyzes the network condition between two nodes at described main test terminal and place, inferior test terminal according to the test result message of receiving and network topology,
Repeated execution of steps a-d, until the node that tests all places, test terminal, testing server generates the test statistics form.
2. the method that the data network quality is carried out on-line testing as claimed in claim 1 is characterized in that: described test UDP message comprises the IP of two nodes that needs are tested and the option that needs test index.
3. as claim 1 or the described method that the data network quality is carried out on-line testing of 2 any claims, it is characterized in that: test event comprises continuity testing and/or remaining bandwidth test and/or packet loss test and/or network delay test between node among the described step b.
4. the method that the data network quality is carried out on-line testing as claimed in claim 1 is characterized in that: key position comprises in the described network: the node of close each gateway in the local area network (LAN).
5. the method that the data network quality is carried out on-line testing as claimed in claim 1 is characterized in that: the execution of described method is finished by the software that is deployed on testing server and the test terminal.
6. system that the data network quality is carried out on-line testing, it is characterized in that, described system comprises a testing server that is deployed in the described network and the Duo Tai test terminal that is deployed in key position in the described network, described testing server deploy has the server test unit, described test terminal deploy has the terminal test unit, and described server test unit comprises:
The instruction issuing unit is used for sending test UDP message to any test terminal of described test terminal;
Described terminal test unit comprises:
The interactive testing unit is used for after receiving described test UDP message, with the terminal test unit generation emulation flow of an other test terminal, finishes test event, obtains the test result message;
Uploading unit, be used for described interactive testing unit testing to the test result message be uploaded to described testing server;
Described server test unit also comprises:
Analytic unit, send confirmation message to the terminal test unit after being used to receive described test result message, and according to the network condition between the node at test result message of receiving and network topology analytical test terminal place, and generate the test statistics form according to the network condition of all test terminals.
7. the system that the data network quality is carried out on-line testing as claimed in claim 6 is characterized in that: described test UDP message comprises the IP of two nodes that needs are tested and the option that needs test index.
8. as claim 6 or the described system that the data network quality is carried out on-line testing of 7 any claims, it is characterized in that: described test event comprises continuity testing and/or remaining bandwidth test and/or packet loss test and/or network delay test between node.
9. the system that the data network quality is carried out on-line testing as claimed in claim 6 is characterized in that: key position comprises in the described network: the node of close each gateway in the local area network (LAN).
10. the system that the data network quality is carried out on-line testing as claimed in claim 6 is characterized in that: described server test unit and terminal test unit are software.
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