CN109039799A - Link state detection method, device and the network equipment - Google Patents
Link state detection method, device and the network equipment Download PDFInfo
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- CN109039799A CN109039799A CN201810674725.7A CN201810674725A CN109039799A CN 109039799 A CN109039799 A CN 109039799A CN 201810674725 A CN201810674725 A CN 201810674725A CN 109039799 A CN109039799 A CN 109039799A
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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
- 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
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
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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
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0847—Transmission error
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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
- H04L43/16—Threshold monitoring
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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
- H04L67/14—Session management
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Abstract
Present disclose provides a kind of link state detection method, device and the network equipments, belong to field of communication technology.Link state detection method, device and the network equipment that the disclosure provides, during the network equipment and opposite equip. carry out BFD session, if the state of BFD session is switched to DOWN by UP, the state value for the BFD session that adds up；If the state value reaches first threshold, the processing of the corresponding BFD message of pause BFD session；If the duration of pause meets pause condition subsequent, open the processing of the corresponding BFD message of the BFD session, neighbours are sent up to the number of notice or the unreachable notice of neighbours to reduce BFD session to upper layer Routing Protocol, reach the frequent shake for alleviating upper layer Routing Protocol, saves the purpose of system resource.
Description
Technical field
This disclosure relates to field of communication technology, more particularly, to a kind of link state detection method, device and the network equipment.
Background technique
For the data transmission quality in Logistics networks communication process, the company to the link between two network equipments is needed
Logical state is detected, and finds link failure in time, as early as possible switch data forward-path, guarantees being normally carried out for communication.
BFD (Bidirectional Forwarding Detection, two-way converting detection) is a kind of general, standard
Change, the unrelated quick fault testing mechanism unrelated with agreement of medium guarantees net for detecting the connection situation of link in network
Network equipment can be quickly detected failure present in chain road.
Two network equipments are established after BFD session, and BFD session is in UP state, can be periodically between the network equipment
BFD message is sent, and carries out overtime detection.Do not receive what opposite equip. was sent when a certain network equipment is interior when detecting
BFD message, then it is assumed that the link between two network equipments breaks down, and DOWN is set by the state of BFD session, in notice
Layer Routing Protocol opposite equip. is unreachable, and upper layer Routing Protocol then selects other link to carry out data interaction.
As the link between two network equipments unstable (such as packet loss, Packet Error Rate increase), BFD message may be
It is dropped in transmission process.If the network equipment when detecting in do not receive opposite equip. transmission BFD message, by BFD
The state of session is switched to DOWN by UP, after the subsequent BFD message for receiving opposite equip. transmission again, starts BFD session again,
The reachable notice of opposite equip. is sent to upper layer Routing Protocol.So, BFD session is continually cut between UP and DOWN
It changes, BFD session is caused to shake, linkage upper layer Routing Protocol is frequently shaken, and the unnecessary consumption of system resource is caused.
Summary of the invention
It, can be in view of this, the disclosure is designed to provide a kind of link state detection method, device and the network equipment
Alleviate the frequent shake of upper layer Routing Protocol, saves system resource.
To achieve the goals above, the disclosure the technical solution adopted is as follows:
In a first aspect, being applied to the network equipment, the method packet present disclose provides a kind of link state detection method
It includes:
During the network equipment and opposite equip. carry out BFD session, if the state of the BFD session is by UP
When being switched to DOWN, the state value for the BFD session that adds up；
If the state value reaches first threshold, suspend the processing of the corresponding BFD message of the BFD session；
If the duration of pause meets pause condition subsequent, the processing of the corresponding BFD message of the BFD session is opened.
Second aspect, present disclose provides a kind of linkage status detection devices, are applied to the network equipment, described device packet
It includes:
State monitoring module is used for during the network equipment and opposite equip. carry out BFD session, if described
When the state of BFD session is switched to DOWN by UP, the state value for the BFD session that adds up；
Conversation module suspends the corresponding BFD report of the BFD session if reaching first threshold for the state value
The processing of text；If the duration of pause meets pause condition subsequent, the processing of the corresponding BFD message of the BFD session is opened.
The third aspect, present disclose provides a kind of network equipments, including processor and the storage being connected to the processor
Device；The memory is stored with the machine-executable instruction that can be executed by the processor, and the processor executes the machine
Device executable instruction is to realize method described in first aspect.
Fourth aspect, present disclose provides a kind of machine readable storage medium, the machine readable storage medium is stored with
Machine-executable instruction, when being called and being executed by processor, the machine-executable instruction promotees the machine-executable instruction
The processor is set to realize method described in first aspect.
Above-mentioned link state detection method, device and the network equipment carry out BFD session in the network equipment and opposite equip.
In the process, if the state of BFD session is switched to DOWN by UP, the state value for the BFD session that adds up；If the state value reaches
To first threshold, suspend the processing of the corresponding BFD message of BFD session；If the duration of pause meets pause condition subsequent, then opens
Open the processing of the corresponding BFD message of BFD session, thus reduce BFD session to upper layer Routing Protocol send neighbours up to notice or
The number of the unreachable notice of neighbours reaches the frequent shake for alleviating upper layer Routing Protocol, saves the purpose of system resource.
Other feature and advantage of the disclosure will illustrate in the following description, alternatively, Partial Feature and advantage can be with
Deduce from specification or unambiguously determine, or by implement the disclosure above-mentioned technology it can be learnt that.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, better embodiment is cited below particularly, and match
Appended attached drawing is closed, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of disclosure specific embodiment or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the disclosure, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of application environment schematic diagram for link state detection method that disclosure embodiment provides；
Fig. 2 is a kind of flow chart for link state detection method that disclosure embodiment provides；
The schematic diagram of BFD conversation procedure is established between two network equipments that Fig. 3 provides for disclosure embodiment；
Fig. 4 is the flow chart for another link state detection method that disclosure embodiment provides；
Fig. 5 is the changing rule schematic diagram for the state value that disclosure embodiment provides；
Fig. 6 is the structural block diagram for the linkage status detection device that disclosure embodiment provides；
Fig. 7 is the structural block diagram for the network equipment that disclosure embodiment provides.
Specific embodiment
To keep the purposes, technical schemes and advantages of disclosure embodiment clearer, below in conjunction with attached drawing to this public affairs
The technical solution opened is clearly and completely described, it is clear that and described embodiment is a part of embodiment of the disclosure,
Rather than whole embodiment.Based on the embodiment in the disclosure, those of ordinary skill in the art are not making creation
Property labour under the premise of every other embodiment obtained, belong to the disclosure protection range.
The following each embodiments of the disclosure can be applied in network environment as shown in Figure 1.As shown in Figure 1, network is set
There are link AB between standby A and network equipment B, and there are link AC, network equipment B and nets between network equipment A and network equipment C
There are link BC between network equipment C.Whether each network equipment passes through BFD conversation mechanism and detects mutual link may be used
It reaches, such as network equipment A, BFD session can be established with network equipment B and network equipment C respectively.Network equipment A and net
Whether the two-way converting path that the BFD session between network equipment B is used to detect link AB breaks down, network equipment A and network
Whether break down in the two-way converting path that BFD session between equipment C is used to detect link AC.When network equipment A is detected
Link AB failure, and link AC up to when, then the business for being sent to network equipment B can be sent to network equipment C by link AC,
The business is sent to by network equipment B by network equipment C again.
It is illustrated by taking the BFD session between network equipment A and network equipment B as an example below, network equipment A is established and net
The BFD session of network equipment B passes through the link AB between the interaction detection network equipment A and network equipment B of BFD message.At this point,
If network equipment A when detecting in do not receive the network equipment B transmission BFD message, then it is assumed that it is unstable between link AB,
The state of the BFD session will be switched to DOWN by UP, the overlying roaduay of notice network equipment A can not by protocol network equipment B
It reaches.The overlying roaduay of network equipment A selects other link to carry out data interaction by consultation, for example, can choose link AC.Afterwards
The continuous BFD message for receiving network equipment B transmission again, network equipment A start the BFD session between network equipment B again.From
And BFD session is caused to shake, linkage upper layer Routing Protocol is frequently shaken, and the unnecessary consumption of system resource is caused.
In order to alleviate the frequent shake of upper layer Routing Protocol, system resource is saved, disclosure embodiment provides one kind
Link state detection method, device and the network equipment, the technology can use relevant software or hardware realization, lead to first below
Specific embodiment is crossed to describe to link state detection method in detail.
Fig. 2 shows a kind of flow chart for link state detection method that disclosure embodiment provides, this method applications
In the network equipment, for example, network equipment A shown in Fig. 1.The network equipment can be but not limited to router, interchanger etc.,
BFD session can be established between two network equipments interconnected by upper layer Routing Protocol.For example, network equipment A and net
It can be established by OSPF (Open Shortest Path First, ospf) agreement between network equipment B
BFD session.For network equipment A, network equipment B is opposite equip..Network equipment A is based on ospf protocol and network equipment B
After establishing neighborhood, BFD session is established according to the detection parameters of the neighbor parameters such as the destination address of network equipment B and setting.
Wherein, detection parameters include that network equipment B sends the interval duration of BFD message and detects whether to receive from network equipment B
The parameters such as the detection duration of BFD message.The process that network equipment B configures BFD session is identical as network equipment A, network equipment B
Also the BFD session with network equipment A can be established, details are not described herein.Network equipment A and network is discussed in detail below in conjunction with Fig. 3
The process of BFD session is established between equipment B.
As shown in figure 3, network equipment A and network equipment B starts BFD session, respective original state is DOWN, and network is set
Standby A sends the BFD message that state is DOWN to network equipment B.Network equipment B receives the BFD message that state is DOWN, local
State is set as INIT, and sends the BFD message that state is INIT to network equipment A.The session of the BFD session of network equipment A
State change is same as above.Network equipment A receives the BFD message that state is INIT, and local state switches to UP by DOWN.Network is set
The session status variation of the BFD session of standby B is same as above.The session status UP of BFD session indicates the success of BFD session establishment.BFD session
After being successfully established, BFD message is periodically sent between network equipment A and network equipment B, detects the link failure of link AB.
As shown in Fig. 2, this method comprises the following steps:
Step S202, during the network equipment and opposite equip. carry out BFD session, if the state of BFD session by
When UP is switched to DOWN, the state value for the BFD session that adds up.
For example, during network equipment A and network equipment B carries out BFD session, if network equipment A is when detecting
In do not receive the BFD message of network equipment B transmission, the state of BFD session is switched to DOWN by UP, notice overlying roaduay by
Protocol network equipment B is unreachable, so that overlying roaduay transmits data by protocol switching to other links (such as link AC).Network is set
The subsequent BFD message for receiving network equipment B transmission again of standby A, the state of BFD session are switched to UP by DOWN, notice overlying roaduay by
Agreement switches back into link AB, repeatedly.
In general, a session identification can be arranged for identifying the BFD session, the network equipment when establishing in BFD session
The BFD message that the BFD message and network equipment B that A is sent to network equipment B are sent to network equipment A carries the session mark
Know.
In the embodiments of the present disclosure, state value is preset, the state value is corresponding with session identification, for recording BFD meeting
The state of words is switched to the number of DOWN by UP, and the initial value of state value can be 0.It is carried out in network equipment A and network equipment B
During BFD session, network equipment A detects the state switching scenario of BFD session, when detecting the state of BFD session by UP
When being switched to DOWN, the state value for the BFD session that adds up.For example, detecting that the state of BFD session is switched to DOWN by UP every time
When, the corresponding state value of the session identification of the BFD session is increased by 1.When the state of BFD session is switched to UP by DOWN, shape
State value is constant.
Step S204, if state value reaches first threshold, the processing of the corresponding BFD message of pause BFD session.
When state value is not up to preset first threshold, the process of BFD session is not intervened, BFD session during this
Session process can recorde as first state, in the first state, even if the state of BFD session is switched to DOWN, net by UP
Network equipment A can continue to negotiate BFD session with network equipment B.Meanwhile in the first state, switched based on BFD session by UP
For the number of DOWN, increase above-mentioned state value.When state value reaches preset first threshold, into the second state, suspend BFD
The processing of the corresponding BFD message of session.No matter the session process of BFD session is in first state or the second state, corresponding meeting
Words mark will not change.The BFD message and network equipment B that network equipment A is sent to network equipment B are set to network
The BFD message that standby A is sent carries the session identification.The session identification for the BFD session for needing to suspend can be according to state value
Corresponding session identification determines that network equipment A can suspend the corresponding BFD message of the BFD session according to the session identification
Processing.I.e. in the second condition, network equipment A stops sending BFD message to network equipment B and refuses to respond network equipment B hair
The BFD message sent sends neighbours up to time of notice or the unreachable notice of neighbours to reduce BFD session to upper layer Routing Protocol
Number alleviates the frequent shake of upper layer Routing Protocol.
Step S206 opens the place of the corresponding BFD message of BFD session if the duration of pause meets pause condition subsequent
Reason.
Wherein, the time span that pause condition subsequent can be pause BFD session reaches setting duration.For example, pause BFD
When session, start a timer, monitoring pause duration determines if the corresponding pause duration of current time reaches setting duration
Current time meets pause condition subsequent, can restart BFD session according to process shown in Fig. 3, switch back into first state.
It switches back into after first state, the BFD message that network equipment A is sent to network equipment B still carries above-mentioned session identification.
In an optional embodiment, state value can be reset according to the period of setting.The period of the setting can be with
According to the experience setting in experiment test or actual use, for example, can be set as 10 seconds, also can be set as 1 minute, or
Person is set as the arbitrary value within 10 minutes.If state value, which does not rise to, reaches first threshold, explanation within the period of setting
Within the period, the state switching scenario of BFD session is not up to preset inhibition level, can be clear by state value according to setting
Zero, accumulation state value again.
In another optional embodiment, setting duration can be reached in the duration of pause, it is corresponding to open BFD session
When the processing of BFD message, state value is reset, again accumulation state value.It is understood that above two reset state value
Mode can be simultaneously using in the same embodiment.
Above-mentioned link state detection method, during the network equipment and opposite equip. carry out BFD session, if BFD
When the state of session is switched to DOWN by UP, the state value for the BFD session that adds up；If the state value reaches first threshold, temporarily
Stop the processing of the corresponding BFD message of BFD session；After waiting setting duration, it is then turned on the processing of the corresponding BFD message of BFD session,
Neighbours are sent up to the number of notice or the unreachable notice of neighbours to reduce BFD session to upper layer Routing Protocol, reach alleviation
The frequent shake of upper layer Routing Protocol, saves the purpose of system resource.
In another optional embodiment, the link state detection method that the network equipment executes can also be referring to Fig. 4
Shown in flow chart execute.As shown in figure 4, this method comprises the following steps:
The state value of BFD session is increased setting value when the state of BFD session is switched to DOWN by UP by step S402.
During network equipment A and opposite equip. carry out BFD session, the state of network equipment A detection BFD session is cut
Situation is changed, when the state for detecting BFD session is switched to DOWN by UP, by the corresponding state value of the session identification of BFD session
Increase setting value.The setting value can be 1 or other numerical value.When the state of BFD session is switched to UP by DOWN, state value is not
Become.Meanwhile state value is decayed according to time damped manner.It is reduced over time for example, state value can be set.Shape
The decaying of state value can be in the following way: first way is, at interval of the damped cycle of setting, according to the decaying system of setting
Number reduces state value；The attenuation coefficient can be 1/2, i.e., state value meets half-life period attenuation law, every by a decaying week
Phase, state value halve；The second way is, at interval of the damped cycle of setting, reduces state value according to the attenuation of setting, i.e.,
The steps reduction of state value；The attenuation can be set as 1.
Step S404, judges whether state value is greater than or equal to preset first threshold；If so, executing step S406；
If not, terminating.
Step S406, the processing of the corresponding BFD message of pause BFD session.
When state value is less than preset first threshold, the process of BFD session is not intervened, can continue to assist with opposite equip.
Quotient's BFD session.When state value is greater than or equal to preset first threshold, suspended according to the corresponding session identification of state value corresponding
BFD session, stop to opposite equip. send BFD message and refuse to respond opposite equip. send BFD message, to reduce BFD
Session sends neighbours up to the number of notice or the unreachable notice of neighbours to upper layer Routing Protocol, alleviates the frequency of upper layer Routing Protocol
Numerous shake.
Step S408, periodically detects state value.
During the processing of pause BFD message, periodically state value can be detected, such as per second to state value
Detection is primary.
Step S410, judges whether state value decays to preset second threshold；If so, executing step S412；If
It is no, return to step S408.
Step S412 opens the processing that BFD talks with corresponding BFD message.
Wherein, second threshold is less than first threshold.During the processing of pause BFD message, state value is decayed according to the time
Mode decays.If detecting that state value is less than or equal to second threshold, it is determined that the duration of pause meets pause condition subsequent,
Corresponding BFD session can be restarted according to process shown in Fig. 3 according to the corresponding session identification of state value.
In order to be more convenient for understanding, Fig. 5 shows the changing rule of state value.As shown in figure 5, at the t0 moment, state value is big
In first threshold, the state of BFD session at this time is DOWN, and the network equipment starts to suspend the place of the corresponding BFD message of BFD session
Reason stops sending BFD message to opposite equip. and refuses to respond the BFD message that opposite equip. is sent.State value is advised by half-life period
Rule decaying decays to second threshold to t1 moment state value, and the network equipment releases the place of the corresponding BFD message of pause BFD session
Reason continues to receive and dispatch BFD message, and the state of BFD session at this time switches to UP.If the link of two network equipments is still not at this time
Stablizing causes BFD session to be shaken, and state value will start again at increase, and again pause for the corresponding BFD message of BFD session to the t2 moment
Processing.
Above-mentioned link state detection method detects BFD during the network equipment and opposite equip. carry out BFD session
The state of session increases state value, when state value reaches preset first when the state of BFD session is switched to DOWN by UP
When threshold value, the processing of the corresponding BFD message of pause BFD session.Meanwhile state value is voluntarily decayed according to time damped manner, when
When state value decays to preset second threshold, the processing of the corresponding BFD message of pause BFD session is released, to reduce BFD meeting
It talks about to upper layer Routing Protocol and sends neighbours up to the number of notice or the unreachable notice of neighbours, alleviate upper layer to a certain extent
The frequent shake of Routing Protocol, has saved the system resource of the network equipment.
With above method embodiment correspondingly, the disclosure embodiment further provides a kind of link state detection fill
It sets, is applied to the network equipment.Such as 6 the structural block diagram of the linkage status detection device is shown, as shown in fig. 6, the device includes:
State monitoring module is used for during the network equipment and opposite equip. carry out BFD session, if described
When the state of BFD session is switched to DOWN by UP, the state value for the BFD session that adds up；
Conversation module, if reaching first threshold, the processing of the corresponding BFD message of pause BFD session for state value；Such as
The duration of fruit pause meets pause condition subsequent, opens the processing of the corresponding BFD message of BFD session.Wherein,
State monitoring module 61 can be also used for: the state value of the BFD session is increased setting value；Wherein, the shape
State value decays according to time damped manner.
Conversation module 62 can be also used for: during the processing of pause BFD message, if the state value of BFD session is decayed
To second threshold, determine that the duration of pause meets pause condition subsequent, wherein the first threshold is greater than second threshold.
In an optional embodiment, which can also include state value dump block, state value dump block and meeting
Module 62 is talked about to connect.State monitoring module 61 can be also used for: the state value of BFD session is increased by 1.State value dump block is used
In: state value is reset according to the period of setting；And/or if the duration of pause reaches setting duration, determine the duration of pause
Meet pause condition subsequent, resets the state value.
Conversation module 62 can be also used for: if state value reaches first threshold, stop sending BFD message to opposite equip.
With the BFD message for refusing to respond opposite equip. transmission；If the duration of pause meets pause condition subsequent, sent to opposite equip.
The BFD message that BFD message and response opposite equip. are sent.
Above-mentioned linkage status detection device, during the network equipment and opposite equip. carry out BFD session, if BFD
When the state of session is switched to DOWN by UP, the state value for the BFD session that adds up；If the state value reaches first threshold, temporarily
Stop the processing of the corresponding BFD message of BFD session；If the duration of pause meets pause condition subsequent, it is corresponding to be then turned on BFD session
BFD message processing, thus reduce BFD session to upper layer Routing Protocol send neighbours up to notice or the unreachable notice of neighbours
Number, reach alleviate upper layer Routing Protocol frequent shake, save the purpose of system resource.
Further, embodiment further provides a kind of network equipment, network equipment A as shown in Figure 1 for the disclosure.It should
The network equipment can be router, interchanger, hub, bridge etc..Fig. 7 shows the structural block diagram of the network equipment, such as Fig. 7
Shown, which includes processor 71 and memory 72.Memory 72 is stored with the machine that can be executed by processor 71
Executable instruction, processor 71 execute machine-executable instruction to realize above-mentioned link state detection method.
The network equipment shown in Fig. 7 further includes bus 73 and communication interface 74, processor 71, communication interface 74 and memory
72 are connected by bus 73.
Wherein, memory 72 may include high-speed random access memory (RAM, Random Access Memory),
It may further include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.By extremely
A few communication interface 74 (can be wired or wireless) realizes that (such as physics takes for the system network element and at least one other network element
Be engaged in device) between communication connection, internet, wide area network, local network, Metropolitan Area Network (MAN) etc. can be used.It is total that bus 73 can be ISA
Line, pci bus or eisa bus etc..The bus can be divided into address bus, data/address bus, control bus etc..For convenient for table
Show, only indicated with a four-headed arrow in Fig. 7, it is not intended that an only bus or a type of bus.
Processor 71 may be a kind of IC chip, the processing capacity with signal.During realization, above-mentioned side
Each step of method can be completed by the integrated logic circuit of the hardware in processor 71 or the instruction of software form.Above-mentioned
Processor 71 can be general processor, may be implemented or execute disclosed each method, step in disclosure embodiment
And logic diagram.General processor can be microprocessor or the processor is also possible to any conventional processor etc..Knot
The step of closing method disclosed in disclosure embodiment can be embodied directly in hardware decoding processor and execute completion, Huo Zheyong
Hardware and software module combination in decoding processor execute completion.Software module can be located at random access memory, flash memory, read-only
The storage medium of this fields such as memory, programmable read only memory or electrically erasable programmable memory, register maturation
In.The storage medium is located at memory 72, and processor 71 reads the information in memory 72, completes aforementioned implementation in conjunction with its hardware
The step of method of mode.
Further, embodiment further provides a kind of machine readable storage mediums, the machine readable storage to be situated between for the disclosure
Matter is stored with machine-executable instruction, which can promote processor when being called and being executed by processor
Realize above-mentioned link state detection method.
In several embodiments provided herein, it should be understood that disclosed device and method can also lead to
Other modes are crossed to realize.Device embodiments described above are only schematical, for example, the flow chart in attached drawing and
Block diagram shows the system in the cards of the device of multiple embodiments according to the present invention, method and computer program product
Framework, function and operation.In this regard, each box in flowchart or block diagram can represent a module, program segment or generation
A part of code, a part of the module, section or code include one or more for realizing defined logic function
Executable instruction.It should also be noted that function marked in the box can also be in some implementations as replacement
Occur different from the sequence marked in attached drawing.For example, two continuous boxes can actually be basically executed in parallel, they
Sometimes it can also execute in the opposite order, this depends on the function involved.It is also noted that block diagram and or flow chart
In each box and the box in block diagram and or flow chart combination, can function or movement as defined in executing it is special
Hardware based system is realized, or can be realized using a combination of dedicated hardware and computer instructions.
In addition, each functional module or unit in each embodiment of the present invention can integrate and form one together solely
Vertical part is also possible to modules individualism, can also be integrated to form with two or more modules one it is independent
Part.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the disclosure is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute all or part of step of each embodiment the method for the disclosure
Suddenly.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), deposits at random
The various media that can store program code such as access to memory (RAM, Random Access Memory), magnetic or disk.
Finally, it should be noted that embodiment described above, the only specific embodiment of the disclosure, to illustrate this public affairs
The technical solution opened, rather than its limitations, the protection scope of the disclosure are not limited thereto, although referring to aforementioned embodiments pair
The disclosure is described in detail, those skilled in the art should understand that: any technology for being familiar with the art
Personnel can still modify to technical solution documented by aforementioned embodiments in the technical scope that the disclosure discloses
Or variation or equivalent replacement of some of the technical features can be readily occurred in；And these modifications, variation or replacement,
The spirit and scope for disclosure embodiment technical solution that it does not separate the essence of the corresponding technical solution, should all cover in this public affairs
Within the protection scope opened.Therefore, the protection scope of the disclosure shall be subject to the protection scope of the claim.
Claims (12)
1. a kind of link state detection method, which is characterized in that be applied to the network equipment, which comprises
During the network equipment and opposite equip. carry out BFD session, if the state of the BFD session is switched by UP
When for DOWN, the state value for the BFD session that adds up；
If the state value reaches first threshold, suspend the processing of the corresponding BFD message of the BFD session；
If the duration of pause meets pause condition subsequent, the processing of the corresponding BFD message of the BFD session is opened.
2. the method according to claim 1, wherein the step of state value of the BFD session that adds up, packet
It includes:
The state value of the BFD session is increased into setting value；Wherein, the state value is decayed according to time damped manner.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
During the processing for suspending the BFD message, if the state value of the BFD session decays to second threshold, determine temporary
The duration stopped meets pause condition subsequent, wherein the first threshold is greater than the second threshold.
4. the method according to claim 1, wherein the step of state value of the BFD session that adds up, packet
It includes: the state value of the BFD session is increased by 1；
The method also includes: the state value is reset according to the period of setting；And/or it is set if the duration of pause reaches
Timing is long, determines that the duration of the pause meets pause condition subsequent, resets the state value.
5. the method according to claim 1, wherein the place of the corresponding BFD message of the pause BFD session
The step of reason, comprising: stop sending BFD message to the opposite equip. and refuse to respond the BFD report that the opposite equip. is sent
Text；
The step of processing for opening the corresponding BFD message of the BFD session, comprising: send BFD report to the opposite equip.
Text and the BFD message for responding the opposite equip. transmission.
6. a kind of linkage status detection device, which is characterized in that be applied to the network equipment, described device includes:
State monitoring module is used for during the network equipment and opposite equip. carry out BFD session, if the BFD
When the state of session is switched to DOWN by UP, the state value for the BFD session that adds up；
Conversation module suspends the corresponding BFD message of the BFD session if reaching first threshold for the state value
Processing；If the duration of pause meets pause condition subsequent, the processing of the corresponding BFD message of the BFD session is opened.
7. device according to claim 6, which is characterized in that the state monitoring module is also used to:
The state value of the BFD session is increased into setting value；Wherein, the state value is decayed according to time damped manner.
8. device according to claim 7, which is characterized in that the conversation module is also used to:
During the processing for suspending the BFD message, if the state value of the BFD session decays to second threshold, determine temporary
The duration stopped meets pause condition subsequent, wherein the first threshold is greater than the second threshold.
9. device according to claim 6, which is characterized in that the state monitoring module is also used to: by the BFD session
State value increase by 1；
Described device further includes state value dump block, resets the state value for the period according to setting；And/or
If the duration of pause reaches setting duration, determines that the duration of the pause meets pause condition subsequent, reset the shape
State value.
10. device according to claim 6, which is characterized in that the conversation module is also used to: if the state value reaches
To first threshold, then stops sending BFD message to the opposite equip. and refuse to respond the BFD report that the opposite equip. is sent
Text；If the duration of pause meets pause condition subsequent, BFD message is sent to the opposite equip. and is set with the opposite end is responded
The BFD message that preparation is sent.
11. a kind of network equipment, which is characterized in that including processor and the memory being connected to the processor；The storage
Device is stored with the machine-executable instruction that can be executed by the processor, and the processor executes the machine-executable instruction
To realize method described in any one of claims 1 to 5.
12. a kind of machine readable storage medium, which is characterized in that the machine readable storage medium is stored with the executable finger of machine
It enables, for the machine-executable instruction when being called and being executed by processor, the machine-executable instruction promotes the processor
Realize method described in any one of claims 1 to 5.
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| CN201810674725.7A CN109039799A (en) | 2018-06-26 | 2018-06-26 | Link state detection method, device and the network equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109861745A (en) * | 2019-01-02 | 2019-06-07 | 新华三技术有限公司 | A kind of fault handling method and cluster routers |
| CN111083215A (en) * | 2019-12-10 | 2020-04-28 | 深信服科技股份有限公司 | Session information synchronization method, device, equipment, system and storage medium |
| CN113141278A (en) * | 2020-01-20 | 2021-07-20 | 华为技术有限公司 | Method and device for detecting connection state between network nodes |
| CN114205405A (en) * | 2021-10-31 | 2022-03-18 | 新华三技术有限公司合肥分公司 | BFD message sending method, device, electronic equipment and storage medium |
| WO2023160619A1 (en) * | 2022-02-25 | 2023-08-31 | 华为技术有限公司 | Link information sending method, and communication apparatus and system |
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| CN101800673A (en) * | 2010-02-03 | 2010-08-11 | 中兴通讯股份有限公司 | Method and device of bidirectional forwarding detection (BFD) oscillation damping |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861745A (en) * | 2019-01-02 | 2019-06-07 | 新华三技术有限公司 | A kind of fault handling method and cluster routers |
| CN109861745B (en) * | 2019-01-02 | 2021-05-07 | 新华三技术有限公司 | Fault processing method and cluster router |
| CN111083215A (en) * | 2019-12-10 | 2020-04-28 | 深信服科技股份有限公司 | Session information synchronization method, device, equipment, system and storage medium |
| CN111083215B (en) * | 2019-12-10 | 2022-08-09 | 深信服科技股份有限公司 | Session information synchronization method, device, equipment, system and storage medium |
| CN113141278A (en) * | 2020-01-20 | 2021-07-20 | 华为技术有限公司 | Method and device for detecting connection state between network nodes |
| CN114205405A (en) * | 2021-10-31 | 2022-03-18 | 新华三技术有限公司合肥分公司 | BFD message sending method, device, electronic equipment and storage medium |
| CN114205405B (en) * | 2021-10-31 | 2023-11-07 | 新华三技术有限公司合肥分公司 | BFD message sending method and device, electronic equipment and storage medium |
| WO2023160619A1 (en) * | 2022-02-25 | 2023-08-31 | 华为技术有限公司 | Link information sending method, and communication apparatus and system |
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