CN106487696A - Link failure detection method and device - Google Patents
Link failure detection method and device Download PDFInfo
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- CN106487696A CN106487696A CN201510542900.3A CN201510542900A CN106487696A CN 106487696 A CN106487696 A CN 106487696A CN 201510542900 A CN201510542900 A CN 201510542900A CN 106487696 A CN106487696 A CN 106487696A
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- bmp
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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
Abstract
The invention provides a kind of link failure detection method and device, by the present invention, using the link set up based on BMP between two nodes；The link failure of the link between two nodes is detected based on BFD；Based on BMP, the method that the link failure being detected based on BFD is processed, with fault present on quick sensing BMP link and can notify to BMP by BFD, solve the problems, such as cannot to make BMP quick sensing when exception in BMP link in correlation technique that this is abnormal, and then reached the effect making BMP quick sensing abnormal.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of link failure detection method and device.
Background technology
Border Gateway Protocol (Border Gateway Protocol, referred to as BGP) monitors agreement (BGP Monitoring
Protocol, referred to as BMP) the draft-ietf-grow-bmp-07 method that defines BMP neighbours' link setup, but for because
Certain reason, link occurs abnormal, how to make BMP quick sensing to this exception, BGP Monitoring Protocol
Draft-ietf-grow-bmp-07 and its related protocol standard do not illustrate.
For cannot make this abnormal problem of BMP quick sensing in correlation technique when exception in BMP link, at present
There is no solution.
Content of the invention
The invention provides a kind of link failure detection method and device, to solve to occur in BMP link in correlation technique
This abnormal problem of BMP quick sensing cannot be made when abnormal.
According to an aspect of the invention, it is provided a kind of link failure detection method, including：Based on Border Gateway Protocol
BGP monitoring agreement BMP sets up the link between two nodes；(Bidirectional is detected based on bidirectional transmit-receive
Forwarding Detection, referred to as BFD) link failure of link between described two nodes is detected；It is based on
Described BMP, is processed to the described link failure being detected based on described BFD.
Alternatively, after set up the described link between described two nodes based on described BMP, also include：Foundation
The described link triggering set up detects the link failure of the link between described two nodes based on described BFD.
Alternatively, the described link being detected based on described BFD between described two nodes described link failure it
Afterwards, also include：According to the described link failure detecting, triggering is based on described BMP, to based on described BFD detection
To described link failure processed.
Alternatively, based on described BMP, the described link failure being detected based on described BFD is carried out process inclusion：
Judge whether the BMP session statuss of described two nodes are closing DOWN；In the case of being to be in judged result,
Link between described two nodes is re-established based on described BMP.
Alternatively, after judging that whether described link failure is the described path fault between described two nodes, also wrap
Include：In judged result in the case of no, the BMP session statuss of described two nodes being all updated to close DOWN.
According to another aspect of the present invention, additionally provide a kind of link failure detection device, including：Set up module, use
Set up the link between two nodes in agreement BMP is monitored based on Border Gateway Protocol (BGP)；Detection module, for base
Detect that BFD detects the link failure of the link between described two nodes in bidirectional transmit-receive；Processing module, for base
In described BMP, the described link failure being detected based on described BFD is processed.
Alternatively, said apparatus also include：First trigger module, for setting up described two sections based on described BMP
After described link between point, according to the described link triggering set up based on described BFD detect described two nodes it
Between link link failure.
Alternatively, said apparatus also include：Second trigger module, for detected based on described BFD described two
After the described link failure of the described link between node, according to the described link failure detecting, triggering is based on described
BMP, is processed to the described link failure being detected based on described BFD.
Alternatively, described processing module includes：Judging unit, for judging the BMP session statuss of described two nodes
Whether it is closing DOWN；Reconstruction unit, in the case of being to be in judged result, based on described BMP again
Set up the link between described two nodes.
Alternatively, said apparatus also include：Updating block, for judging the BMP session statuss of described two nodes
After whether being closing DOWN, and in judged result in the case of no, by the state of described two nodes all more
New is to close DOWN.
By the present invention, using the link set up based on BMP between two nodes, detected described two based on BFD
The link failure of the link between node, based on described BMP, to the described link failure being detected based on described BFD
The method being processed, with fault present on quick sensing BMP link and can notify, to BMP, to solve by BFD
This abnormal problem of BMP quick sensing cannot be made in correlation technique of having determined when exception in BMP link, and then reach
Make the abnormal effect of BMP quick sensing.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention
Schematic description and description be used for explaining the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of link failure detection method according to embodiments of the present invention；
Fig. 2 is the structured flowchart of link failure detection device according to embodiments of the present invention；
Fig. 3 is the preferred structure block diagram one of link failure detection device according to embodiments of the present invention；
Fig. 4 is the preferred structure block diagram two of link failure detection device according to embodiments of the present invention；
Fig. 5 is the structured flowchart one of processing module 26 in link failure detection device according to embodiments of the present invention；
Fig. 6 is the structured flowchart two of processing module 26 in link failure detection device according to embodiments of the present invention；
Fig. 7 is the BMP link of link failure detection method according to embodiments of the present invention and the normal work of BFD session
When schematic diagram；
Fig. 8 is the handling process when BMP link of link failure detection method according to embodiments of the present invention breaks down
Figure；
Fig. 9 is the schematic diagram when BMP link of link failure detection method according to embodiments of the present invention breaks down；
Figure 10 is the BMP link failure handling process schematic diagram of link failure detection method according to embodiments of the present invention；
The BMP that Figure 11 is according to embodiments of the present invention sets up the schematic diagram of link.
Specific embodiment
To describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that in the feelings do not conflicted
Under condition, the embodiment in the application and the feature in embodiment can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second "
Etc. being for distinguishing similar object, without for describing specific order or precedence.
Provide a kind of link failure detection method in the present embodiment, Fig. 1 is link failure according to embodiments of the present invention
The flow chart of detection method, as shown in figure 1, this flow process comprises the steps：
Step S102, sets up the link between two nodes based on BMP；
Step S104, detects the link failure of the link between this two nodes based on BFD；
Step S106, based on BMP, is processed to the link failure being detected based on BFD.
Wherein, BFD is a procotol being used for fault between two forwarding points of detection, has in detail in RFC 5880
Description.
BFD sets up session on two equipment, for monitoring the two-way converting path of two equipment rooms, is upper-layer protocol clothes
Business, such as multiprotocol label switching (Muti-Protocol Label Switching, referred to as MPLS), open shortest path
Footpath preferential (Open Shortest Path First, referred to as OSPF), Intermediate System-to-Intermediate System (Intermediate
System-to-Intermediate System, referred to as IS-IS).BFD itself does not have discovery mechanism, but leans on bedding and clothing
The upper-layer protocol of business notifies it whom should set up session with, if not receiving opposite end in detection time after session establishment
BFD controls message then to think and break down, and notifies the upper-layer protocol of being serviced, and upper-layer protocol is processed accordingly.
And in this embodiment, by above-mentioned steps, BMP is set as the upper-layer protocol of BFD, on BMP link
Deployment BFD, can be quickly detected the fault of BMP link presence by BFD, and by this failure notification to BMP,
Solve the problems, such as in correlation technique, to make this abnormal, Jin Erda of BMP quick sensing when exception in BMP link
To the effect making BMP quick sensing exception.
In one alternate embodiment, after step s 102, the method can also include：Touch according to the link set up
Send out the link failure detecting the link between this two nodes based on BFD.For example, after setting up BMP link, permissible
By message is sent it is also possible to by the state of BMP session is set to UP to BFD from BMP, thus triggering BFD
The link failure of the BMP link between this two nodes is detected.
In an optional embodiment, after step s 104, the method can also include：According to the chain detecting
Road fault, triggering is based on BMP, and the link failure being detected based on BFD is processed.For example, deposit detecting
After link failure, can be by sending message it is also possible to pass through the node shape of this two nodes from BFD to BMP
State is changed to DOWN, or can also be by being DOWN by the session state setting of BFD session, thus triggering is based on
BMP is processed to the link failure being detected based on BFD.
In an optional embodiment, step S106 can be accomplished by：Judge the BMP of this two nodes
Whether session statuss are closing DOWN；In the case of being to be in judged result, re-establish this two based on BMP
Link between node.In the related, in the event of node failure, and only one of which node there occurs fault,
I.e. the node state of one of node is UP, when the node state of another node is DOWN, BMP agreement oneself
Have no idea to release this abnormal it is necessary to rely on manual intervention, allow the node state of this two nodes be all DOWN.?
In the present embodiment, whether the BMP session statuss first determining whether to occur two nodes of link failure are to close DOWN,
Then, in the case of being to be in judged result, the path fault of BMP link occurring is processed, efficiently quick and
Save manpower.
Alternatively, if it is determined that the BMP session statuss of this two nodes are not equal in another optional embodiment
After being in the state of closing DOWN, step S106 also includes：In judged result in the case of no, this two being saved
The BMP session statuss of point are all updated to close DOWN.Thus realizing, in this alternative embodiment, can not needing
In the case of manual intervention, the node state of this two nodes is all updated to DOWN it is achieved that based on BMP for
Automatically processing during node failure.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-described embodiment
Method can realize by the mode of software plus necessary general hardware platform naturally it is also possible to pass through hardware, but a lot
In the case of the former is more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing
Have what technology contributed partly can embody in the form of software product, this computer software product is stored in one
In storage medium (as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can
To be mobile phone, computer, server, or the network equipment etc.) method described in execution each embodiment of the present invention.
Additionally provide a kind of link failure detection device in the present embodiment, this device is used for realizing above-described embodiment and preferably
Embodiment, had carried out repeating no more of explanation.As used below, term " module " can be realized making a reservation for
The software of function and/or the combination of hardware.Although the device described by following examples preferably to be realized with software,
It is hardware, or the realization of the combination of software and hardware is also may and to be contemplated.
Fig. 2 is the structured flowchart of link failure detection device according to embodiments of the present invention, as shown in Fig. 2 this device bag
Include and set up module 22, detection module 24 and processing module 26, below this device is illustrated.
Set up module 22, for setting up the link between two nodes based on BMP；Detection module 24, connects to foundation
Module 22, for detecting the link failure of the link between this two nodes based on BFD；Processing module 26, connects
To detection module 24, for based on BMP, processing to the link failure being detected based on BFD.
Fig. 3 is the preferred structure block diagram one of link failure detection device according to embodiments of the present invention, as shown in figure 3, should
Device, in addition to including all modules shown in Fig. 2, also includes the first trigger module 32, below this device is illustrated.
First trigger module 32, connects to setting up module 22 and detection module 24, for based on BMP set up this two
After link between individual node, detect the link between this two nodes based on BFD according to the link triggering set up
Link failure.
Fig. 4 is the preferred structure block diagram two of link failure detection device according to embodiments of the present invention, as shown in figure 4, should
Device, in addition to including all modules shown in Fig. 2, also includes the second trigger module 42, below this device is illustrated.
Second trigger module 42, connects to detection module 24 and processing module 26, for detecting this based on BFD
After the link failure of link between two nodes, according to the link failure detecting, triggering is based on BMP, to base
Processed in the link failure that BFD detects.
Fig. 5 is the structured flowchart one of processing module 26 in link failure detection device according to embodiments of the present invention, such as Fig. 5
Shown, processing module 26 includes judging unit 52 and reconstruction unit 54, below this processing module 26 is illustrated.
Judging unit 52, whether the BMP session statuss for judging this two nodes are closing DOWN；Weight
Build unit 54, connect to judging unit 52, for the judged result in judging unit 52 for, in the case of being, being based on
BMP re-establishes the link between this two nodes.
Fig. 5 is a kind of exemplary illustration, its can also such as Fig. 3, Fig. 4 or its with reference to shown device in carry out
The example of processing module 26.
Fig. 6 is the structured flowchart two of processing module 26 in link failure detection device according to embodiments of the present invention, such as Fig. 6
Shown, processing module 26, in addition to comprising all units shown in Fig. 5, also includes updating block 62, below to this process
Module 26 illustrates.
Whether updating block 62, connect to judging unit 52, for equal in the BMP session statuss judging this two nodes
After closing DOWN, and in judged result in the case of no, the state of this two nodes being all updated to close
DOWN.
Further below the present invention is illustrated：
The mechanism BFD agreement that one two-way quick detection receives and dispatches message is first set up on a link needing BMP link setup,
Abbreviated here as " fast detection mechanism ", except BFD, can also be other testing mechanisms.Close with upper-layer protocol BMP
BMP session neighbor information, as BMP session UP, can be told " fast detection mechanism ", " quick detection by connection
Mechanism " is set up neighborhood further according to this information and is carried out fast detection mechanism session.If the two of BMP session
There is multilink between end points, then can set up " fast detection mechanism " session for each of the links.
" fast detection mechanism " is setting up the network section of two sessions (i.e. BMP session and fast detection mechanism session)
Detected between point；If it find that link failure just removes " fast detection mechanism " neighbours, and notify upper strata association immediately
View BMP, then upper-layer protocol BMP can be switched accordingly at once, be DOWN State Transferring；Then again
Again initiate link setup.
For the technical problem to be solved in the present invention, providing one kind in embodiments of the present invention can quickly allow needs build
The BMP session of chain perceives the abnormal method of link, is not required to want manual intervention using the method, easy to operate, can be short
In time, fast quick-recovery link setup is it is ensured that BMP message is timely transmitted to server.
Fig. 7 is the BMP link of link failure detection method according to embodiments of the present invention and the normal work of BFD session
When schematic diagram, as shown in fig. 7, in the normal work of BMP link and BFD session, comprising the steps：
Step S702, based on BMP, according to normal flow, initiates to connect in two nodes, between this two nodes
Set up link and neighborhood.
Step S704, sets up neighborhood based on BMP, when that is, BMP session statuss are UP, by this two nodes
The relevant information of neighborhood notify to BFD.
Step S706, the relevant information of the neighborhood according to this two nodes receiving for the BFD sets up BFD neighborhood,
And setting up the detection of the link enterprising line link between BFD neighborhood and this two nodes of session.
Fig. 8 is the handling process when BMP link of link failure detection method according to embodiments of the present invention breaks down
Figure, as shown in figure 8, when BMP link breaks down, comprise the steps：
Step S802, the link failure of this two nodes；
Step S804, detects there is link failure between this two nodes based on BFD, removes BFD neighborhood；
Step S806, BFD notifies local BMP link to there is fault, and this fault leads to BFD neighbours unreachable；
Step S808, according to the fault message of the correlation receiving from BFD, change BMP session statuss are DOWN to BMP,
And processed accordingly.
This ensures that there BMP session can quick sensing link abnormal, make corresponding process.
Fig. 9 is the schematic diagram when BMP link of link failure detection method according to embodiments of the present invention breaks down,
As shown in figure 9, according to BGP Monitoring Protocol draft-ietf-grow-bmp-07 and its related protocol standard
Regulation, BMP does not have the keep Alive Packet of oneself, that is, when link failure, if by chance at this time BMP session by
UP switchs to DOWN, then corresponding information may be dropped because of link failure, can lead to the abnormal state of BMP session,
I.e. one end state is UP, and other end state is DOWN, at this moment, keeps one end that node state is UP no longer to receive
BMP link setup is asked.At this time BMP agreement oneself has no idea to release this exception, needs manual intervention, allows BMP
The state at session two ends is all DOWN.
It is pointed out that the two ends that link failure occurs can one end be node as shown in Figure 9, the other end is server,
Can also two ends be all node.
Figure 10 is the BMP link failure handling process schematic diagram of link failure detection method according to embodiments of the present invention,
As shown in Figure 10, two network nodes of BMP session dispose BFD, associate BMP, BFD detects link
It is informed about BMP after fault, make the BMP session statuss that state is UP be converted to DOWN；Then according still further to normal
Flow process initiates the flow process of BMP link setup, as shown in figure 11.
Under link abnormal conditions, using the detection method of the link failure of the present invention, BMP session being capable of quick sensing
Link is abnormal, correctly processes in time, quickly sets up BMP connection, improves efficiency, decrease artificial intervention.
It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong
Cross in the following manner to realize, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module position respectively
In multiple processors.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
To be arranged to store the program code for executing following steps：
S1, sets up the link between two nodes based on BMP；
S2, detects the link failure of the link between this two nodes based on BFD；
S3, based on BMP, is processed to the link failure being detected based on BFD.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read only memory
(Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as
For RAM), portable hard drive, magnetic disc or CD etc. are various can be with the medium of store program codes.
Alternatively, in the present embodiment, processor is according to the above-mentioned step of the program code execution of storage in storage medium
S1-S3.
Alternatively, the specific example in the present embodiment may be referred to showing described in above-described embodiment and optional embodiment
Example, the present embodiment will not be described here.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Realizing, they can concentrate on single computing device computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to by they
Storage to be executed by computing device in the storage device, and in some cases, can be to hold different from order herein
The shown or described step of row, or they are fabricated to respectively each integrated circuit modules, or will be many in them
Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware
Combine with software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the technology of this area
For personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any
Modification, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of link failure detection method is it is characterised in that include：
Link between two nodes is set up based on Border Gateway Protocol (BGP) monitoring agreement BMP；
Detect that BFD detects the link failure of the link between described two nodes based on bidirectional transmit-receive；
Based on described BMP, the described link failure being detected based on described BFD is processed.
2. method according to claim 1 it is characterised in that based on described BMP set up described two nodes it
Between described link after, also include：
Detect the link of the link between described two nodes according to the described link triggering set up based on described BFD
Fault.
3. method according to claim 1 it is characterised in that based on described BFD detect described two nodes it
Between the described link failure of described link after, also include：
According to the described link failure detecting, triggering is based on described BMP, to detected based on described BFD
Described link failure is processed.
4. according to the method in any one of claims 1 to 3 it is characterised in that being based on described BMP, to based on institute
State the described link failure that BFD detects and carry out processing and include：
Judge whether the BMP session statuss of described two nodes are closing DOWN；
In the case of being to be in judged result, the link between described two nodes is re-established based on described BMP.
5. method according to claim 4 is it is characterised in that judging the BMP session statuss of described two nodes
After whether being closing DOWN, also include：
In judged result in the case of no, the BMP session statuss of described two nodes being all updated to close
DOWN.
6. a kind of link failure detection device is it is characterised in that include：
Set up module, for the chain between two nodes is set up based on Border Gateway Protocol (BGP) monitoring agreement BMP
Road；
Based on bidirectional transmit-receive, detection module, for detecting that BFD detects the link of the link between described two nodes
Fault；
Processing module, for based on described BMP, carrying out to the described link failure being detected based on described BFD
Process.
7. device according to claim 6 is it is characterised in that also include：
First trigger module, for after set up the described link between described two nodes based on described BMP,
Detect the link failure of the link between described two nodes according to the described link triggering set up based on described BFD.
8. device according to claim 6 is it is characterised in that also include：
Second trigger module, for the institute in the described link being detected based on described BFD between described two nodes
After stating link failure, according to the described link failure detecting, triggering is based on described BMP, to based on described
The described link failure that BFD detects is processed.
9. the device according to any one of claim 6 to 8 is it is characterised in that described processing module includes：
Judging unit, whether the BMP session statuss for judging described two nodes are closing DOWN；
Reconstruction unit, in the case of being to be in judged result, is re-established described two based on described BMP
Link between node.
10. device according to claim 9 is it is characterised in that also include：
Updating block, for whether be in the BMP session statuss judging described two nodes close DOWN it
Afterwards, and in judged result in the case of no, the state of described two nodes being all updated to close DOWN.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510542900.3A CN106487696B (en) | 2015-08-28 | 2015-08-28 | Link failure detection method and device |
| PCT/CN2016/081441 WO2017036165A1 (en) | 2015-08-28 | 2016-05-09 | Link fault detection method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510542900.3A CN106487696B (en) | 2015-08-28 | 2015-08-28 | Link failure detection method and device |
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| CN106487696A true CN106487696A (en) | 2017-03-08 |
| CN106487696B CN106487696B (en) | 2019-07-23 |
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| CN201510542900.3A Active CN106487696B (en) | 2015-08-28 | 2015-08-28 | Link failure detection method and device |
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| WO (1) | WO2017036165A1 (en) |
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| WO2019228385A1 (en) * | 2018-06-01 | 2019-12-05 | 华为技术有限公司 | Method and apparatus for managing virtual private network |
| CN111934939A (en) * | 2020-09-17 | 2020-11-13 | 北京搜狐新媒体信息技术有限公司 | Network node fault detection method, device and system |
| WO2021063069A1 (en) * | 2019-09-30 | 2021-04-08 | 中兴通讯股份有限公司 | Filtering information configuration method and system |
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| CN113572685B (en) | 2020-04-29 | 2023-03-10 | 华为技术有限公司 | Information reporting method, information processing method, device and equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106487696B (en) | 2019-07-23 |
| WO2017036165A1 (en) | 2017-03-09 |
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