CN103188716A - Location method and device for failures of reliable user datagram protocol (RUDP) link - Google Patents
Location method and device for failures of reliable user datagram protocol (RUDP) link Download PDFInfo
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- CN103188716A CN103188716A CN2011104523264A CN201110452326A CN103188716A CN 103188716 A CN103188716 A CN 103188716A CN 2011104523264 A CN2011104523264 A CN 2011104523264A CN 201110452326 A CN201110452326 A CN 201110452326A CN 103188716 A CN103188716 A CN 103188716A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/22—Traffic shaping
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Abstract
The invention discloses a location method and device for failures of a reliable user datagram protocol (RUDP) link, The location method includes the following steps: S1, failure location fields are added in a message header of an RUDP message in advance; S2, failure location parameters are filled in the failure location fields of the RUDP message and the message is sent to a next skip node when a source node sends data to a destination node; S3, the source node locates the failure points according to preset strategies when the transmission path fails. The location device for failures of the RUDP link comprises a RUDP message management module and a failure locating module. The location method and device for failures of the RUDP link is capable of reducing out-sending data and relieving network load.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of RUDP (Reliable User Datagram Protocol, RUDP) periodic line fault location method and device.
Background technology
RUDP is a kind of simple bag host-host protocol based on RFC908 and 1151 (second edition).RUDP provides message based reliable communication function, and communication is connection-oriented, and bottom adopts UDP as bearing protocol.As a reliable transport protocol, RUDP is used for the telephone signal between the transmission IP network.The critical function of RUDP is retransmitted exactly, when sending message, can start an overtime timer, does not receive replying of opposite end will resend message that when overtime timer is overtime this mechanism has guaranteed that effectively data arrive the opposite end.Fig. 1 is the RUDP message format schematic diagram in the agreement.Wherein, the SYN field is represented current for synchronously, the ACK field is represented the effective ack number of protocol header, and the EACK field represents that current is that expansion admits that the RST field list shows that packet is for resetting, the NUL field list shows that packet is empty, the CHK field represent to check and whether comprise protocol header or protocol header and data check and, the TCS field list shows that packet is to transmit connection status, 0 field represents that its value must be set to 0, above field is referred to as Control Bits field, expression packet current state; Header Length field list shows the user data original position in the packet; Sequence Number field represents that each peering structure is chosen an initial sequence number arbitrarily when opening first connection, and described sequence number is used for the SYN field and opens connection.Before sending data, sky or the field that resets, each sender understands corresponding increase sequence number; Acknowledgement Number field represents that the sender transmits the sequence of the packet of recipient's reception at last; The Checksum field represents in the protocol header that the chief accountant calculates check and to guarantee integrality.
Though overtime re-transmission can appear in RUDP in the RUDP link, but can not determine it is which node breaks down, can't provide effective information to analyzing the whole piece communication link, special under the communication between plates of the communications field, because physical link quite stable, so when the RUDP chain rupture occurring, handle problems for software mostly, therefore need a kind of effective method to come the fault location point.
Summary of the invention
The objective of the invention is, a kind of RUDP periodic line fault location method and device are provided, to solve the transmission path fault orientation problem in the RUDP message transmission procedure.
The invention provides a kind of RUDP periodic line fault location method, said method is:
In the heading of RUDP message, increase the fault location field in advance;
Source node is filled into the fault location parameter in the fault location field of RUDP message when sending data between destination node, sends to the next-hop node on the transmission path;
When above-mentioned transmission path broke down, above-mentioned source node was according to the preset strategy localization of faults.
The present invention further provides a kind of RUDP link failure positioner, said apparatus comprises RUDP message administration module and fault determination module,
Above-mentioned RUDP message administration module, the fault location field for the fault location parameter being filled into the RUDP message sends to the next-hop node on the transmission path;
Above-mentioned fault determination module is used for when transmission path breaks down, according to the preset strategy localization of faults.
The present invention when sending the RUDP message, namely carries the fault location parameter by above-mentioned fault location field by increase the fault location field in the heading of RUDP message, makes RUDP message transmissions path in a single day break down, and can know the fault point; The present invention has reduced the traffic volume of data, alleviates network load.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the heading form of the RUDP message in the agreement;
Fig. 2 is embodiment one schematic diagram of the heading form of RUDP message of the present invention;
Fig. 3 is embodiment two schematic diagrames of the heading form of RUDP message of the present invention;
Fig. 4 is the flow chart of RUDP periodic line fault location method preferred embodiment one of the present invention;
Fig. 5 is the flow chart of RUDP periodic line fault location method preferred embodiment two of the present invention;
Fig. 6 is the theory diagram of RUDP link failure positioner preferred embodiment of the present invention.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
As shown in Figure 2, be embodiment one schematic diagram of the heading form of RUDP message of the present invention; Present embodiment has increased the fault location field before the CheckSum of the heading of RUDP message field, its big I is according to concrete application choice, such as 4 bytes or 2 bytes; The fault location field is in order to carry the fault location parameter, and for example source node sends time or the address of node of RUDP message; In addition, when the fault location parameter is the time, but fault location field called after Time field then, when the fault location parameter is the address, but fault location field called after location field then.
As shown in Figure 3, be embodiment two schematic diagrames of the heading form of RUDP message of the present invention; Present embodiment has increased the fault location field after the CheckSum of the heading of RUDP message field, its big I is according to concrete application choice, such as 4 bytes or 2 bytes; The fault location field is in order to carry the fault location parameter, and for example source node sends time or the address of node of RUDP message; In addition, when the fault location parameter is the time, but fault location field called after Time field then, when the fault location parameter is the address, but fault location field called after location field then.
As shown in Figure 4, it is the flow chart of RUDP periodic line fault location method preferred embodiment one of the present invention, present embodiment is based on Fig. 2 or RUDP message shown in Figure 3, if source node is A, destination node is E, transmission path is A-B-C-D-E, and establish B node and D node and be default key node, with the time as the fault location parameter, specifically may further comprise the steps:
Step S01: source node A need send data to destination node E;
Step S02: local zone time is filled in the fault location field of RUDP message, sends to the next-hop node B on the transmission path;
Step S03: Node B is key node, so obtain the time in the fault location field of the RUDP message of receiving, and deducts the time of obtaining with local zone time, calculates buffer memory after the time difference, simultaneously above-mentioned RUDP message is transmitted to next-hop node C;
Step S04: node C is ordinary node, and next that then the RUDP message of receiving is transmitted on the transmission path jumped message D;
Step S05: node D is key node, so obtain the time in the fault location field of the RUDP message of receiving, and deducts the time of obtaining with local zone time, calculates buffer memory after the time difference, simultaneously above-mentioned RUDP message is transmitted to next-hop node E;
Step S06: the overtime response message of not receiving that destination node E returns of source node A, then judge transmission path fault;
Step S07: the time difference L that obtains the key node B on the transmission path
BWith the time difference L on the key node D
D
Step S08: find out the wherein time difference of numerical value maximum;
Step S09: the localization of faults, namely the node of the time difference correspondence of above-mentioned numerical value maximum is the fault point.
In the present embodiment, if Node B breaks down, after then the RUDP message sends to B, just can not continue to be forwarded, at this moment, the time difference on the node D is empty, and behind the timer expiry, source node A can learn transmission path fault, and the localization of faults.In the following examples (being embodiment two), in a single day transmission path breaks down, and source node can be learnt in the fastest time and the localization of faults, not need waiting timer overtime.
As shown in Figure 5, it is the flow chart of RUDP periodic line fault location method preferred embodiment two of the present invention, present embodiment is based on Fig. 2 or RUDP message shown in Figure 3, if source node is A, destination node is E, transmission path is A-B-C-D-E,, specifically may further comprise the steps as the fault location parameter with the address:
Step S11: source node A need send data to destination node E, local address is filled in the fault location field of RUDP message, sends to the next-hop node B on the transmission path;
Step S12: judge whether in Preset Time, to receive the response message of Node B, if then this node sends successfully; Otherwise, transmission path fault, and the fault point is Node B, finishes;
Even source node A does not receive the response message of Node B in Preset Time, then Node B place fault;
Step S13: Node B is replaced the address in the fault location field of the RUDP message receive with local address, and above-mentioned RUDP message is transmitted to next-hop node C;
Step S14: judge whether in Preset Time, to receive the response message of node C, if then this node sends successfully; Otherwise, return and send failed message to source node A;
Step S15: node C replaces the address in the fault location field of the RUDP message receive with local address, and above-mentioned RUDP message is transmitted to next-hop node D;
Step S16: judge whether in Preset Time, to receive the response message of node D, if then this node sends successfully; Otherwise, return and send failed message to source node A;
Step S17: node D replaces the address in the fault location field of the RUDP message receive with local address, and above-mentioned RUDP message is transmitted to next-hop node E;
Step S18: judge whether in Preset Time, to receive the response message of node E, if then this node sends successfully; Otherwise, return and send failed message to source node A;
Step S19: source node A know transmission path fault, and the localization of faults is the next-hop node that returns above-mentioned transmission failed message node after receiving and sending failed message.
If Node B is not received the response message of node C in Preset Time, then return and send failed message to source node A, source node A judges transmission path fault at once and the fault point is node C;
If node C does not receive the response message of node D in Preset Time, then return and send failed message to source node A, source node A judges transmission path fault at once and the fault point is node D;
If node D does not receive the response message of node E in Preset Time, then return and send failed message to source node A, source node A judges transmission path fault at once and the fault point is node E.
The present invention can confirm in time that transmission path breaks down, and has reduced the number of retransmissions of RUDP message, has alleviated network burden.
As shown in Figure 6, be the theory diagram of RUDP link failure positioner preferred embodiment of the present invention, present embodiment comprises RUDP message administration module and fault determination module, wherein,
RUDP message administration module, the fault location field for the fault location parameter being filled into the RUDP message sends to the next-hop node on the transmission path; And dispose key node in the intermediate node on transmission path, and obtain the time in the fault location field of the RUDP message of receiving, and deduct the above-mentioned time that gets access to local zone time, calculate time difference and buffer memory; Perhaps when receiving the RUDP message, echo reply message is given a last hop node, address with the fault location field in the RUDP message of receiving replaces with local address simultaneously, be transmitted to next-hop node, and judge whether in Preset Time, to receive the response message of above-mentioned next-hop node, and when in Preset Time, not receiving the response message of above-mentioned next-hop node, return and send failed message to source node;
Fault determination module is used for obtaining the time difference on the key node in the transmission path when transmission path breaks down, and finds out the wherein time difference of numerical value maximum, according to the time difference localization of faults of above-mentioned numerical value maximum; Perhaps according to returning the node localization of faults that sends failed message.
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of claims of the present invention.
Claims (10)
1. RUDP RUDP periodic line fault location method is characterized in that described method is:
In the heading of RUDP message, increase the fault location field in advance;
Source node is filled into the fault location parameter in the fault location field of RUDP message when sending data between destination node, sends to the next-hop node on the transmission path;
When described transmission path broke down, described source node was according to the preset strategy localization of faults.
2. method according to claim 1 is characterized in that,
Described fault location field is arranged in before or after the CheckSum field of described heading.
3. method according to claim 1 is characterized in that, described fault location parameter is time or address.
4. method according to claim 3 is characterized in that, when described fault location parameter was the time, described method was further comprising the steps of:
Dispose key node in the intermediate node on described transmission path in advance;
When described key node is received the RUDP message, obtain the time in the fault location field, and deduct the described time that gets access to local zone time, calculate time difference and buffer memory.
5. method according to claim 3 is characterized in that, when described fault location parameter was the address, described method was further comprising the steps of:
After intermediate node on the described transmission path was received the RUDP message, echo reply message was given a last hop node;
The address of the fault location field in the RUDP message of receiving is replaced with local address, and be transmitted to next-hop node;
Judge whether in Preset Time, to receive the response message of described next-hop node, if, then send successfully, otherwise, return and send failed message to described source node.
6. according to claim 4 or 5 described methods, it is characterized in that, in the described method,
When described fault location parameter was the time, described source node when not receiving the response message of destination node, determined that transmission path breaks down overtime;
When described fault location parameter was the address, described source node determined that transmission path breaks down when sending failed message or the overtime response message of not receiving destination node receiving.
7. method according to claim 6 is characterized in that, when described fault location parameter was the time, described source node was specially according to preset strategy localization of faults step:
Obtain the time difference on the key node in the transmission path;
Find out the wherein time difference of numerical value maximum;
The node of the time difference correspondence of described numerical value maximum is the fault point.
8. method according to claim 6 is characterized in that, when described fault location parameter was the address, described source node was specially according to preset strategy localization of faults step:
When not receiving the response message of next-hop node in described Preset Time, the fault point is described next-hop node; Otherwise the fault point is the next-hop node that returns the node that sends failed message.
9. a RUDP link failure positioner is characterized in that described device comprises RUDP message administration module and fault determination module,
Described RUDP message administration module, the fault location field for the fault location parameter being filled into the RUDP message sends to the next-hop node on the transmission path;
Described fault determination module is used for when transmission path breaks down, according to the preset strategy localization of faults.
10. device according to claim 9 is characterized in that,
Described RUDP message administration module, the intermediate node that is used on transmission path disposes key node, and obtain time in the fault location field of the RUDP message of receiving, and deduct the described time that gets access to local zone time, calculate time difference and buffer memory; Perhaps when receiving the RUDP message, echo reply message is given a last hop node, address with the fault location field in the RUDP message of receiving replaces with local address simultaneously, be transmitted to next-hop node, and judge whether in Preset Time, to receive the response message of described next-hop node, and when in Preset Time, not receiving the response message of described next-hop node, return and send failed message to source node;
Described fault determination module for the time difference on the key node that obtains transmission path, is found out the wherein time difference of numerical value maximum, according to the time difference localization of faults of described numerical value maximum; Perhaps according to returning the node localization of faults that sends failed message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110452326.4A CN103188716B (en) | 2011-12-29 | 2011-12-29 | RUDP periodic line fault location methods and device |
| PCT/CN2012/077789 WO2013097434A1 (en) | 2011-12-29 | 2012-06-28 | Reliable udp link failure positioning method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110452326.4A CN103188716B (en) | 2011-12-29 | 2011-12-29 | RUDP periodic line fault location methods and device |
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| CN103188716A true CN103188716A (en) | 2013-07-03 |
| CN103188716B CN103188716B (en) | 2018-08-03 |
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| CN104320388A (en) * | 2014-10-13 | 2015-01-28 | 杭州海兴电力科技股份有限公司 | S-FSK carrier based active alarming method |
| CN104601411A (en) * | 2015-02-02 | 2015-05-06 | 华为技术有限公司 | Link failure detection method and device |
| CN105611424B (en) * | 2015-12-28 | 2019-04-05 | 武汉鸿瑞达信息技术有限公司 | Audio-video reliable transmission QOS method, receiving end and system based on RUDP |
| CN109787838A (en) * | 2019-02-25 | 2019-05-21 | 武汉晟联智融微电子科技有限公司 | Evade the method for failed trunk node in multihop network |
| CN110474814A (en) * | 2019-08-29 | 2019-11-19 | 广州供电局有限公司 | Electric power local area network method for diagnosing faults, device |
| CN110971938A (en) * | 2019-12-11 | 2020-04-07 | 聚好看科技股份有限公司 | Data transmission method, device and system |
| WO2023168872A1 (en) * | 2022-03-10 | 2023-09-14 | 中国电信股份有限公司 | Anomaly feedback method, fault location method, network node, and storage medium |
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| WO2023168872A1 (en) * | 2022-03-10 | 2023-09-14 | 中国电信股份有限公司 | Anomaly feedback method, fault location method, network node, and storage medium |
Also Published As
| Publication number | Publication date |
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| WO2013097434A1 (en) | 2013-07-04 |
| CN103188716B (en) | 2018-08-03 |
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