CN100550787C - Network fault node diagnosis method - Google Patents
Network fault node diagnosis method Download PDFInfo
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- CN100550787C CN100550787C CNB2006101069476A CN200610106947A CN100550787C CN 100550787 C CN100550787 C CN 100550787C CN B2006101069476 A CNB2006101069476 A CN B2006101069476A CN 200610106947 A CN200610106947 A CN 200610106947A CN 100550787 C CN100550787 C CN 100550787C
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000003745 diagnosis Methods 0.000 title claims abstract description 27
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000000523 sample Substances 0.000 abstract description 2
- 238000002405 diagnostic procedure Methods 0.000 description 1
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Abstract
The invention discloses a kind of network fault node diagnosis method, the testing process daily according to the engineer at first developed automatic testing software and can be simulated and finish the detection network path to the whole process of seeking the network failure node according to specified protocol; Secondly, at each network equipment node, (TCP, UDP) finish automatic test: whole test process only need be filled in the purpose network address, just can finish the diagnosis of malfunctioning node according to network connectivty automatically can to adopt selected agreement.This method is the detection network malfunctioning node automatically, and in following the trail of route operating speed ICMP agreement faster at first, simultaneously with the route tracking of UDP as backup, guaranteed to find the probability of complete route; Simultaneously the method for probe node connectedness is effective flexibly, effective auxiliary network Fault Diagnosis in real work.
Description
Technical field
The present invention relates to a kind of network technology, relate to a kind of network fault node diagnosis method specifically.
Background technology
At present, along with complicated network environment, the test of network connectivty and diagnostic work are also numerous and diverse day by day.Network engineers often need to use multiple testing equipment and multiple means of testing that network topology structure is guessed, and in view of the above possible fault point are tested one by one, the difficult point of determining to become the network-in-dialing property testing of fault point.
Network engineers often need be by general ping, instruments such as transrouter determine to arrive the network path of destination address, but because the network equipment is for security consideration, often forbid the agreement that this order relied on---ICMP, caused the engineer can't know complete path node information; Simultaneously, aspect the continuity testing of node, the engineer often needs to adopt UDP, TCP, and various protocols such as HTTP are tested, the final localization of faults position of ability, this often needs the testing tool or the testing software of specialty again.In a word, to the diagnostic procedure of network failure node, lack a kind of effective automatic means of testing.
Summary of the invention
Purpose of the present invention just is according to above-mentioned network failure problem, thus the network fault node diagnosis method that provides a kind of diagnosis of finishing malfunctioning node automatically to test automatically.
Purpose of the present invention can realize by following measure:
The inventive method is as follows:
(1) surveys the purpose network connectivty according to selected agreement
Use transmission control protocol TCP or User Datagram Protoco (UDP) UDP, send transmission control protocol TCP handshaking information or User Datagram Protoco (UDP) UDP message to destination address and destination interface, and wait for that target device replys, by judging return information or overtimely judging whether network can be communicated with;
(2) if network can not be communicated with, at first internet usage control information agreement ICMP carries out route tracking; Find that network can not be communicated with, then the route that arrives destination address is followed the trail of in the route tracking order of internet usage control information agreement ICMP, if all devices is not all forbidden ICMP ICMP on the network, can find complete route;
(3) if internet usage control information agreement ICMP can find complete route, then carry out failure diagnosis
According to the complete routing iinformation that finds, from from the nearest device node of destination address, the connectedness of testing each node to source device node successively; If have a plurality of continuous or discontinuous nodes all can not be communicated with, think that then nearest node has problem; If all nodes can be communicated with, think that then destination device is a malfunctioning node;
(4) if internet usage control information agreement ICMP can not find complete route, then use User Datagram Protoco (UDP) UDP to carry out route tracking:
Internet usage control information agreement ICMP can't find complete routing iinformation, then uses the user datagram udp protocol instead and carries out the route tracking operation, and this step can find complete route;
(5) find routing iinformation, then carry out failure diagnosis
After using User Datagram Protoco (UDP) UDP to find complete routing iinformation, then can carry out the diagnosis of malfunctioning node, the same step of method (3).
In the method for the present invention: when internet usage control information agreement ICMP searches route, finding under the situation of complete route, using User Datagram Protoco (UDP) UDP to search route once more, and contrasting the result who searches for twice, choosing one of them and carry out failure diagnosis.
The present invention is owing to adopt said method, and this method is the detection network malfunctioning node automatically, and in the tracking route operating speed ICMP agreement faster at first, simultaneously with the route tracking of UDP as backup, guaranteed to find the probability of complete route; Simultaneously the method for probe node connectedness is effective flexibly, effective auxiliary network Fault Diagnosis in real work.
Description of drawings
Accompanying drawing is a program flow diagram of the present invention.
Embodiment
The present invention does with detailed description below in conjunction with drawings and Examples:
Embodiment 1
The inventive method is as follows:
As shown in the figure
(1) surveys the purpose network connectivty according to selected agreement
Use transmission control protocol TCP or User Datagram Protoco (UDP) UDP, send transmission control protocol TCP handshaking information or User Datagram Protoco (UDP) UDP message to destination address and destination interface, and wait for that target device replys, by judging return information or overtimely judging whether network can be communicated with;
(2) if network can not be communicated with, at first internet usage control information agreement ICMP carries out route tracking
Find that network can not be communicated with, then the route that arrives destination address is followed the trail of in the route tracking order of internet usage control information agreement ICMP, if all devices is not all forbidden ICMP ICMP on the network, can find complete route;
(3) if internet usage control information agreement ICMP can find complete route, then carry out failure diagnosis
According to the complete routing iinformation that finds, from from the nearest device node of destination address, the connectedness of testing each node to source device node successively.If have a plurality of continuous or discontinuous nodes all can not be communicated with, think that then nearest node has problem; If all nodes can be communicated with, think that then destination device is a malfunctioning node;
(4) if internet usage control information agreement ICMP can not find complete route, then use User Datagram Protoco (UDP) UDP to carry out route tracking:
Internet usage control information agreement ICMP can't find complete routing iinformation, then uses the user datagram udp protocol instead and carries out route tracking operation, can find complete route as this step 1;
(5) find routing iinformation, then carry out failure diagnosis
After using User Datagram Protoco (UDP) UDP to find complete routing iinformation, then can carry out the diagnosis of malfunctioning node, the same step of method (3).
Embodiment 2
According to daily testing process, at first develop automatic testing software and can simulate and finish the detection network path to the whole process of seeking the network failure node according to specified protocol; Secondly, at each network equipment node, (TCP, UDP) finish automatic test: whole test process only need be filled in the purpose network address, just can finish the diagnosis of malfunctioning node according to network connectivty automatically can to adopt selected agreement.Seek malfunctioning node and need experience following steps:
The inventive method is as follows:
(1) surveys the purpose network connectivty according to selected agreement
Use transmission control protocol TCP or User Datagram Protoco (UDP) UDP, send transmission control protocol TCP handshaking information or User Datagram Protoco (UDP) UDP message to destination address and destination interface, and wait for that target device replys, by judging return information or overtimely judging whether network can be communicated with;
(2) if network can not be communicated with, at first internet usage control information agreement ICMP carries out route tracking
Find that network can not be communicated with, then the route that arrives destination address is followed the trail of in the route tracking order of internet usage control information agreement ICMP, if all devices is not all forbidden ICMP ICMP on the network, can find complete route;
(3) if internet usage control information agreement ICMP can find complete route, then carry out failure diagnosis
According to the complete routing iinformation that finds, from from the nearest device node of destination address, the connectedness of testing each node to source device node successively.If have a plurality of continuous or discontinuous nodes all can not be communicated with, think that then nearest node has problem; If all nodes can be communicated with, think that then destination device is a malfunctioning node;
(4) if internet usage control information agreement ICMP can not find complete route, then use User Datagram Protoco (UDP) UDP to carry out route tracking:
Internet usage control information agreement ICMP can't find complete routing iinformation, then uses the user datagram udp protocol instead and carries out route tracking operation, can find complete route as this step 1;
(5) find routing iinformation, then carry out failure diagnosis
After using User Datagram Protoco (UDP) UDP to find complete routing iinformation, then can carry out the diagnosis of malfunctioning node, method is the same.
The inventive method (4) in: when internet usage control information agreement ICMP searches route, also can find under the situation of complete route, use User Datagram Protoco (UDP) UDP to search route once more, and contrast the result who searches for twice, choose one of them and carry out failure diagnosis.
Claims (2)
1, a kind of network fault node diagnosis method is characterized in that: its method is as follows:
(1) surveys the purpose network connectivty according to selected agreement
Use transmission control protocol TCP or User Datagram Protoco (UDP) UDP, send transmission control protocol TCP handshaking information or User Datagram Protoco (UDP) UDP message to destination address and destination interface, and wait for that target device replys, by judging return information or overtimely judging whether network can be communicated with;
(2) if network can not be communicated with, at first internet usage control information agreement ICMP carries out route tracking
Find that network can not be communicated with, then the route that arrives destination address is followed the trail of in the route tracking order of internet usage control information agreement ICMP, if all devices is not all forbidden ICMP ICMP on the network, can find complete route;
(3) if internet usage control information agreement ICMP can find complete route, then carry out failure diagnosis
According to the complete routing iinformation that finds, from from the nearest device node of destination address, the connectedness of testing each node to source device node successively; If have a plurality of continuous or discontinuous nodes all can not be communicated with, think that then nearest node has problem; If all nodes can be communicated with, think that then destination device is a malfunctioning node;
(4) if internet usage control information agreement ICMP can not find complete route, then use User Datagram Protoco (UDP) UDP to carry out route tracking:
Internet usage control information agreement ICMP can't find complete routing iinformation, then uses User Datagram Protoco (UDP) UDP instead and carries out the route tracking operation, and this step can find complete route;
(5) find routing iinformation, then carry out failure diagnosis
After using User Datagram Protoco (UDP) UDP to find complete routing iinformation, then can carry out the diagnosis of malfunctioning node, the same step of method (3).
2, network fault node diagnosis method according to claim 1, it is characterized in that: in its described method: when internet usage control information agreement ICMP searches route, finding under the situation of complete route, use User Datagram Protoco (UDP) UDP to search route once more, and contrast the result who searches for twice, choose one of them and carry out failure diagnosis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101069476A CN100550787C (en) | 2006-08-29 | 2006-08-29 | Network fault node diagnosis method |
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| CNB2006101069476A CN100550787C (en) | 2006-08-29 | 2006-08-29 | Network fault node diagnosis method |
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| CN100550787C true CN100550787C (en) | 2009-10-14 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888310B (en) * | 2009-05-11 | 2012-02-22 | 黑龙江大学 | UDP message-based IP path active measurement method |
| CN101699797B (en) * | 2009-11-13 | 2012-07-11 | 珠海网博信息科技有限公司 | Method for performing data transmission by using UDP protocol |
| CN101931982A (en) * | 2010-08-18 | 2010-12-29 | 北京星网锐捷网络技术有限公司 | Network failure positioning method and device |
| CN104679693B (en) * | 2013-11-26 | 2017-12-29 | 深圳市国微电子有限公司 | A kind of multiplex roles mode implementation method of 1553B bus protocols IP kernel |
| CN103986604A (en) * | 2014-05-23 | 2014-08-13 | 华为技术有限公司 | Method and device for locating network fault |
| CN106027284A (en) * | 2016-04-29 | 2016-10-12 | 乐视控股（北京）有限公司 | Network fault diagnosis method and device |
| TW201939923A (en) * | 2018-03-09 | 2019-10-01 | 和碩聯合科技股份有限公司 | Network inspection method and network device |
| CN108924000B (en) * | 2018-06-19 | 2021-09-07 | 成都网丁科技有限公司 | Novel network path detection method realized based on TCP protocol |
| CN110661683B (en) * | 2019-09-26 | 2021-07-16 | 苏州浪潮智能科技有限公司 | Method and device for analyzing UDP (user Datagram protocol) protocol by file based on pcap format |
| CN111917608B (en) * | 2020-08-07 | 2022-01-04 | 深圳市友华软件科技有限公司 | Method and device for judging Internet connectivity based on Linux system equipment |
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