CN109150659A - A kind of processor and BFD message transmitting method - Google Patents
A kind of processor and BFD message transmitting method Download PDFInfo
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- CN109150659A CN109150659A CN201810935261.0A CN201810935261A CN109150659A CN 109150659 A CN109150659 A CN 109150659A CN 201810935261 A CN201810935261 A CN 201810935261A CN 109150659 A CN109150659 A CN 109150659A
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- message
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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
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
Abstract
The application provides a kind of processor and BFD message transmitting method, and the processor includes control core and data core；The control core is used for, and determines that first network equipment and second network equipment negotiate the session information for the BFD session established, and the session information includes that the first message sends interval, sends interval using first message and sends the first BFD message to second network equipment；The control core is also used to, and the session information is synchronized to data core；The data core is used for, and receives the synchronous session information of the control core, and obtain the second message transmission interval, and second message sends interval and is less than first message transmission interval；First message in the session information is sent into interval and is updated to the second message transmission interval, interval is sent using second message and sends the first BFD message to second network equipment.By the technical solution of the application, the performance pressures of control core can be mitigated, improve the disposed of in its entirety performance of the network equipment.
Description
Technical field
This application involves fields of communication technology, more particularly, to a kind of processor and BFD message transmitting method.
Background technique
BFD (Bidirectional Forwarding Detection, two-way converting detection) is general, standardization
, the unrelated quick fault testing mechanism unrelated with agreement of medium, for detect the link in IP network connection situation, guarantee net
It can be quickly detected communication failure between network equipment, so as to timely take measures, guarantee the continuous service of business.
BFD can quickly detect the two-way converting path between two network equipments for various upper-layer protocols (such as Routing Protocol)
Failure, and the detection of Millisecond can be provided.
After first network equipment and second network equipment establish BFD session, the transmission BFD of first network device periodically is reported
Text, and receive the BFD message of the second network equipment periodicity sending.If first network equipment when detecting in do not receive the
The BFD message that two network equipments are sent then illustrates the two-way converting path hair between first network equipment and second network equipment
Raw failure, and the failure is notified to upper-layer protocol.
Since first network equipment needs periodically to send BFD message, as sent a BFD message if every millisecond, because
This, BFD message needs to occupy a large amount of CPU (Central Processing Unit, central processing unit) resource, causes to CPU
Bigger burden influences the process performance of first network equipment.
Summary of the invention
The application provides a kind of processor and BFD message transmitting method, sends out in data core for sharing BFD message
It send, to mitigate the performance pressures of control core, and improves the disposed of in its entirety performance of the network equipment.
In a first aspect, the application provides a kind of processor, the processor is in first network equipment, the processor
Including control core and data core, in which:
The control core is used for, and determines that the first network equipment and second network equipment are negotiated the two-way converting established and examined
The session information of survey BFD session, the session information include the first message transmission interval, and using between first message transmission
Every to second network equipment send the first BFD message；
The control core is also used to, and the session information is synchronized to the data core；
Between the data core is used for, and receives the synchronous session information of the control core, and the second message of acquisition is sent
Every second message sends interval and is less than first message transmission interval；By first report in the session information
Text sends interval and is updated to the second message transmission interval, and sends interval to second network using second message
Equipment sends the first BFD message.
With reference to first aspect, in the first possible implementation, the data core is by the institute in the session information
It states the first message transmission interval and is updated to the second message transmission interval, be specifically used for:
The 2nd BFD message for carrying second message and sending interval is sent to second network equipment；
If receiving the BFD response message of the 2nd BFD message, by first message in the session information
It sends interval and is updated to the second message transmission interval；
Wherein, the first BFD message is for making second network equipment detect the corresponding path of the BFD session
It is no to break down；The 2nd BFD message is for making second network equipment by the first message of the first network equipment
It sends interval and is updated to the second message transmission interval.
With reference to first aspect with the first possible implementation, in the second possible implementation, the control
The session information that core determines further includes that the first message receives interval；
The data core is also used to after receiving the synchronous session information of the control core, is obtained the second message and is received
Interval, second message, which receives interval and is less than first message, receives interval, and by described the in the session information
One message receives interval and is updated to the second message reception interval；
The 2nd BFD message that the data core is sent further includes that second message receives interval；
Wherein, the 2nd BFD message is also used to make second network equipment by the first of the first network equipment
Message receives interval and is updated to the second message reception interval.
With reference to first aspect with the first possible implementation, in the third possible implementation, in the number
After sending the 2nd BFD message for carrying the second message transmission interval to second network equipment according to core, the data
Core is also used to, and is sent a notification message to the control core；
The control core is also used to, and according to the notification message, stops being spaced using first message transmission to described
Second network equipment sends the first BFD message；
Alternatively, sending interval using second message in the data core sends described the to second network equipment
After one BFD message, the data core is also used to, and is sent a notification message to the control core；
The control core is also used to, and according to the notification message, stops being spaced using first message transmission to described
Second network equipment sends the first BFD message.
With reference to first aspect, in the fourth possible implementation, the control core is sent using first message
It is spaced before sending the first BFD message to second network equipment,
The control core is also used to, and determines that the first message sends interval according to the process performance of the control core, and by institute
The first message transmission interval is stated to store into the session information.
Second aspect, the application provide a kind of BFD message transmitting method, are applied to first network equipment, first net
Network equipment includes processor, and the processor includes control core and data core, which comprises
The control core determines that the first network equipment and second network equipment negotiate the session letter for the BFD session established
Breath, the session information include that the first message sends interval, and sends interval to second network using first message
Equipment sends the first BFD message；
The session information is synchronized to the data core by the control core；
The data core receives the synchronous session information of the control core, and obtains the second message and send interval, institute
It states the second message and sends interval less than first message transmission interval；First message in the session information is sent
Interval is updated to second message and sends interval, and sends interval using second message and send out to second network equipment
Send the first BFD message.
In conjunction with second aspect, in the first possible implementation, the data core is by the institute in the session information
It states the first message transmission interval and is updated to the second message transmission interval, comprising:
The 2nd BFD message for carrying second message and sending interval is sent to second network equipment；
If receiving the BFD response message of the 2nd BFD message, by first message in the session information
It sends interval and is updated to the second message transmission interval；
Wherein, the first BFD message is for making second network equipment detect the corresponding path of the BFD session
It is no to break down；The 2nd BFD message is for making second network equipment by the first message of the first network equipment
It sends interval and is updated to the second message transmission interval.
In conjunction with second aspect and the first possible implementation, in the second possible implementation, the control
The session information that core determines further includes that the first message receives interval；
After the data core receives the synchronous session information of the control core, the method also includes:
It obtains the second message and receives interval, second message receives interval and receives interval less than first message, will
First message in the session information receives interval and is updated to the second message reception interval；
Wherein, the 2nd BFD message that the data core is sent further includes that second message receives interval；
The 2nd BFD message is also used to connect second network equipment by the first message of the first network equipment
It receives interval and is updated to the second message reception interval.
In conjunction with second aspect and the first possible implementation, in the third possible implementation,
The data core sends the 2nd BFD message for carrying second message and sending interval to second network equipment
Afterwards, the data core sends a notification message to the control core；The control core stops described in utilization according to the notification message
First message sends interval and sends the first BFD message to second network equipment；
Alternatively,
The data core sends interval using second message and sends the first BFD report to second network equipment
Wen Hou, the data core send a notification message to the control core；The control core stops utilizing institute according to the notification message
It states the first message and sends interval to second network equipment the first BFD message of transmission.
In conjunction with second aspect, in the fourth possible implementation, the control core is sent using first message
It is spaced before sending the first BFD message to second network equipment, the method also includes:
The control core determines that the first message sends interval according to the process performance of the control core, and described first is reported
Text sends interval and stores into the session information.
The third aspect, the application provides a kind of first network equipment, including processor and machine readable storage medium, described
Machine readable storage medium is stored with the machine-executable instruction that can be executed by the processor；The processor is for executing
Machine-executable instruction, to realize above-mentioned BFD message transmitting method step.
Fourth aspect, the application provide a kind of machine readable storage medium, and the machine readable storage medium storage is organic
Device executable instruction, for the machine-executable instruction when being called and being executed by processor, the machine-executable instruction can be with
The processor is promoted to realize above-mentioned BFD message transmitting method step.
Based on the above-mentioned technical proposal, in the embodiment of the present application, control core, which can share BFD message in data core, to be sent out
It send, rather than controls core and send all BFD messages, so as to mitigate the performance pressures of control core, improve the network equipment
Disposed of in its entirety performance.Moreover, control core can use biggish first before BFD message is shared data core by control core
Message sends interval and sends BFD message, rather than utilizes lesser second message to send interval and send BFD message, to reduce
The quantity forwarded of BFD message further mitigates the performance pressures of control core.In addition, BFD message is shared data in control core
After core, data core can use lesser second message and send interval transmission BFD message, be so as to accurately detect path
It is no to break down, it detects whether path breaks down in time, improves the accuracy of BFD detection.
Detailed description of the invention
It, below will be to the application in order to clearly illustrate the embodiment of the present application 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 only some embodiments as described in this application, for those of ordinary skill in the art, can also be according to this Shen
Please these attached drawings of embodiment obtain other attached drawings.
Fig. 1 is the application scenarios schematic diagram in a kind of embodiment of the application；
Fig. 2 is the flow chart of the BFD message transmitting method in a kind of embodiment of the application；
Fig. 3 is the form schematic diagram of the BFD message in a kind of embodiment of the application；
Fig. 4 is the hardware structure diagram of the processor in a kind of embodiment of the application；
Fig. 5 is the hardware structure diagram of the first network equipment in a kind of embodiment of the application.
Specific embodiment
In the term that the embodiment of the present application uses merely for the sake of for the purpose of describing particular embodiments, rather than limit this Shen
Please.The "an" of singular used in the application and claims, " described " and "the" are also intended to including most shapes
Formula, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to comprising one
A or multiple associated any or all of project listed may combine.
It will be appreciated that though various letters may be described using term first, second, third, etc. in the embodiment of the present application
Breath, but these information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example,
In the case where not departing from the application range, the first information can also be referred to as the second information, and similarly, the second information can also be with
The referred to as first information.Depending on context, in addition, used word " if " can be construed to " ... when " or
" when ... " or " in response to determination ".
The embodiment of the present application proposes a kind of BFD message transmitting method, and this method can be applied to first network equipment, first
The network equipment uses multi-core processor (such as CPU), that is to say, that the processor of first network equipment includes multiple cores, these cores
In include control core and data core (such as one or more data core).
It is shown in Figure 1, it is the application scenarios schematic diagram of the embodiment of the present application, the processor 100 of first network equipment 10
Including control core 101, data core 102 and data core 103, certainly, in practical applications, the quantity of data core can be more, such as
It altogether include 7 data cores etc..In addition, second network equipment 11 communicated with first network equipment 10 can be handled using multicore
Device can also use single core processor, without limitation, in this application scene, use monokaryon with second network equipment 11
It is illustrated for processor.
It is shown in Figure 2 under above-mentioned application scenarios, it is the process of the BFD message transmitting method in the embodiment of the present application
Figure, this method can be applied to the processor of first network equipment, and this method may include:
Step 201, the control core of the processor determines that first network equipment and second network equipment negotiate the BFD meeting established
The session information of words, the session information may include that the first message sends interval, and is sent and be spaced to this using first message
Second network equipment sends the first BFD message.Wherein, the first BFD message may be used to second network equipment and detect the BFD
Whether break down in the corresponding path of session.
It in one example, then can be in order to carry out BFD detection between first network equipment and second network equipment
Negotiate to establish BFD session between first network equipment and second network equipment, and control core to determine the session of the BFD session
Information is illustrated the process below in conjunction with the application scenarios of Fig. 1.
For example, control core 101 is that second network equipment 11 establishes BFD session 1, the state of the BFD session 1 is Down, control
Core 101 processed is that BFD session 1 distributes LD (Local discriminator, local identifier), such as 100011.It is true to control core 101
The minimum for determining BFD session 1, which is given out a contract for a project, is spaced A1 and minimum packet receiving interval B1；Then, control core 101 sends Down message 1, Down report
The source IP address of text 1 is the IP address of first network equipment 10, and purpose IP address is the IP address of second network equipment 11, and should
The carrying of Down message 1 100011, minimum, which are given out a contract for a project, is spaced A1 and minimum packet receiving interval B1.Similarly, second network equipment 11 also uses
Aforesaid way is handled, and sends Down message 2 to first network equipment 10, the source IP address of the Down message 2 is the second net
The IP address of network equipment 11, purpose IP address are the IP address of first network equipment 10, which carries the second network and set
Standby 11 LD distributed for BFD session, such as 100012, the minimum of second network equipment 11, which is given out a contract for a project, is spaced A2 and minimum packet receiving interval
B2。
After control core 101 receives Down message 2, found according to the purpose IP address of Down message 2 and source IP address
Matched BFD session 1, parses the identifier 100012 of second network equipment 11 from Down message 2, which is known as RD
(remote discriminator, distal marker symbol), and parse the minimum of second network equipment 11 from Down message 2 and send out
Inter-packet gap A2 and minimum packet receiving interval B2.
Then, the state of BFD session 1 is switched to Init by control core 101, and sends Init message 1, Init message 1
Source IP address is the IP address of first network equipment 10, and purpose IP address is the IP address of second network equipment 11, and Init is reported
The LD that text 1 carries is 100011, RD 100012, and carries minimum and give out a contract for a project and be spaced A1 and minimum packet receiving interval B1.Similarly, second
The network equipment 11 is also handled using aforesaid way, sends Init message 2, the source IP of the Init message 2 to first network equipment 10
Address is the IP address of second network equipment 11, and purpose IP address is the IP address of first network equipment 10, which takes
The LD of band is 100012, RD 100011, and carries minimum and give out a contract for a project and be spaced A2 and minimum packet receiving interval B2.
Core 101 is controlled after receiving Init message 2, the LD100012 and RD100011 carried according to Init message 2 is looked into
Find matched BFD session 1.Wherein, LD and RD can uniquely determine BFD session.
Then, the state of BFD session 1 is switched to Up by control core 101, and sends Up message 1, the source IP of Up message 1
Location be first network equipment 10 IP address, purpose IP address be second network equipment 11 IP address, and Up message 1 carry
LD is 100011, RD 100012, and carries minimum and give out a contract for a project and be spaced A1 and minimum packet receiving interval B1.Similarly, second network equipment
11 are also handled using aforesaid way, send Up message 2 to first network equipment 10, the source IP address of the Up message 2 is the second net
The IP address of network equipment 11, purpose IP address are the IP address of first network equipment 10, and the LD which carries is
100012, RD 100011, and carry minimum and give out a contract for a project and be spaced A2 and minimum packet receiving interval B2.
So far, control core 101 completes the establishment process of BFD session 1, and the session information of BFD session 1 may include but unlimited
In: source IP address (such as IP address of first network equipment 10), purpose IP address (such as IP address of second network equipment 11), LD
(LD 100011 distributed such as control core 101), RD (LD 100012 of such as second network equipment 11 distribution), first network equipment
10 minimum, which is given out a contract for a project, is spaced A1 and minimum packet receiving interval B1, and the minimum of second network equipment 11, which is given out a contract for a project, to be spaced between A2 and minimum packet receiving
Every B2.Certainly, the example of above-mentioned only session information, session information may include other contents, without limitation.
Further, can also by Up packet check path whether failure.For example, second network equipment 11 is periodically
Send Up message 2, control core 101 after receiving Up message 2, can according to Up message 2 carry LD100012 and
RD100011 finds matched BFD session 1.Based on this, reported if receiving within a preset time with the matched Up of BFD session 1
Text 2 then controls core 101 and determines that the corresponding path of BFD session 1 does not have failure；If not receiving within a preset time and BFD session
1 matched Up message 2 then controls core 101 and determines the corresponding path fails of BFD session 1.Similarly, the control also period of core 101
Property send Up message 1, second network equipment 11 according to Up message 1 detect path whether failure.
In one example, when controlling 101 periodicity sending Up message 1 of core, interval is sent for the message of Up message 1
(i.e. sending cycle) can then determine in the following way: control core 101 is given out a contract for a project from the minimum of first network equipment 10 is spaced A1
The larger value is selected in the minimum packet receiving interval B2 of second network equipment 11, gives out a contract for a project such as minimum and is spaced A1 greater than minimum packet receiving interval
It when B2, selects minimum to give out a contract for a project and is spaced A1, then, control core 101 is given out a contract for a project every minimum is spaced A1 (such as 5 milliseconds), just sends one
Secondary Up message 1.
It in one example, then can be using such as lower section in order to determine whether the corresponding path of BFD session 1 breaks down
Formula: control core 101 is given out a contract for a project from the minimum packet receiving interval B1 of first network equipment 10 and the minimum of second network equipment 11 is spaced A2
Middle selection the larger value selects minimum packet receiving interval B1, and will be minimum as when minimum packet receiving interval B1 gives out a contract for a project greater than minimum is spaced A2
Packet receiving interval B1 is as detection time interval.It will test time interval (rule of thumb to configure, or by the second net multiplied by detection multiple
Network equipment 11 notifies), just obtain detection duration；If control core 101 receives and the matched Up of BFD session 1 in growing when detecting
Message 2, it is determined that the corresponding path of BFD session 1 does not have failure；If control core 101 does not receive and BFD meeting in growing when detecting
Talk about 1 matched Up message 2, it is determined that the corresponding path fails of BFD session 1.
The above process describes the reality that control core 101 sends Up message 1, whether the determining path of control core 101 breaks down
Existing process, in addition, second network equipment 11 sends Up message 2, second network equipment 11 determines the reality whether path breaks down
Existing process, similar with the above process, it is no longer repeated herein.
In the above-described embodiments, Down message, Init message and Up message are BFD messages, only carry content difference,
It is shown in Figure 3, it is the form schematic diagram of BFD message.In BFD message, Vers indicates version number；Diag indicates diagnosis code；
Sta indicates type of message, if the Sta in Down message is Down, indicates that current message is Down message, in Init message
Sta is Init, indicates that current message is Init message, and the Sta in Up message is Up, indicates that current message is Up message；P
(Poll bit) indicates ballot bit, the set in Parameters variation, and receives the response of F set；F (Final bit) is indicated most
Whole bit, the set when being responded to the BFD message of P set；(Control Plane Independent controls plane to C
It is unrelated) indicate that BFD detection not instead of by control Planar realization, is realized by Forwarding plane；A(Authentication
Present bit) indicate to authenticate the set in certification there are bit；D (Demand bit) indicates poll bits, looks into use
Set when asking detection pattern；M (Multipoint bit) indicates multiple spot bit, indicates that extension is reserved.Detect Mult indicates inspection
Survey multiple；Length indicates message length；My Discriminator indicates local identifier (LD)；Your
Discriminator indicates distal marker symbol (RD)；Between Desired Min TX Interval indicates that local expectation minimum is given out a contract for a project
Every；Required Min RX Interval indicates local and it is expected minimum packet receiving interval；Required Min Echo RX
Interval indicates that local expectation is minimum and receives loopback message interval.
For example, carrying above-mentioned field, such as Sta in the Up message 2 that second network equipment 11 is sent to first network equipment 10
For Up, indicate that current message is Up message, Detect Mult is 3, indicates that detection multiple 3, My Discriminator are
LD100012, Your Discriminator are RD100011, and Desired Min TX Interval is second network equipment 11
Minimum give out a contract for a project and be spaced A2, Required Min RX Interval is the minimum packet receiving interval B2 of second network equipment 11, right
In the content of other fields, details are not described herein.It is similar with Up message 2 for the content of Down message 2 and Init message 2,
This is repeated no more.
Obviously, BFD message (such as the Down message, Init sent based on second network equipment 11 to first network equipment 10
Message and Up message), control core 101 can know second network equipment 11 be BFD session distribution identifier (such as 100012),
The minimum of second network equipment 11 is given out a contract for a project in detection multiple for being spaced A2 and minimum packet receiving interval B2, second network equipment 11 etc.
Hold.
Further, control core 101 can be by the session information of these content records to BFD session 1, to obtain
The session information of the session information of BFD session 1, BFD session 1 can include but is not limited to: source IP address, purpose IP address, LD,
RD, the minimum of first network equipment 10, which is given out a contract for a project, is spaced A1 and minimum packet receiving interval B1, between the minimum of second network equipment 11 is given out a contract for a project
Every A2 and minimum packet receiving interval B2, detection multiple 3 of second network equipment etc..
In the above-described embodiments, control core 101 needs periodically to send Up message 1 (i.e. the first BFD message), sends
Period is that minimum gives out a contract for a project and is spaced A1 (i.e. the first message send interval) or minimum packet receiving interval B2, in order to save control core 101
Process resource, reduce Up message 1 quantity forwarded, then control core 101 can also according to control core 101 process performance determine
Minimum, which is given out a contract for a project, is spaced A1, with no restrictions to this method of determination, and minimum is given out a contract for a project and is spaced A1 and stores to the corresponding meeting of BFD session 1
It talks about in information.
Wherein, minimum give out a contract for a project is spaced A1 and can be inversely proportional with the process performance of control core 101, i.e., process performance is better, then
Minimum, which is given out a contract for a project, is spaced that A1 is smaller, and process performance is poorer, then minimum is given out a contract for a project, and to be spaced A1 bigger.For example, when the CPU of control core 101 makes
With rate be 20%, then minimum give out a contract for a project be spaced A1 can be smaller, such as 50 milliseconds；When control core 101 CPU usage be 80%,
Then minimum give out a contract for a project be spaced A1 can be bigger, such as 1 second；Certainly, above-mentioned only determining minimum, which is given out a contract for a project, is spaced an example of A1, right
This is with no restrictions.
In conclusion then minimum give out a contract for a project is spaced the comparison that A1 can be set when the process performance for controlling core 101 is poor
Greatly, it controls core 101 and gives out a contract for a project from minimum and be spaced when selecting the larger value in A1 and minimum packet receiving interval B2, minimum is given out a contract for a project, and to be spaced A1 logical
Minimum packet receiving interval B2 can be often greater than, that is to say, that control core 101 can give out a contract for a project every minimum is spaced an A1 Up message of transmission
1.Since minimum is given out a contract for a project, to be spaced A1 bigger, aforesaid way can reduce the quantity forwarded of Up message 1, save control core
101 process resource.
After sending Up message 1 (i.e. the first BFD message) to second network equipment 11, second network equipment 11 can basis
Up message 1 detect path whether failure, with no restrictions to this detection process.
In the above-described embodiments, second network equipment 11 needs periodically to send Up message 2, and sending cycle is minimum
Give out a contract for a project and be spaced A2 or minimum packet receiving interval B1, for each Up message 2 that control core 101 receives, control core 101 is required to
According to Up message 2 detect path whether failure, i.e., processing Up message 2.In order to save the process resource of control core 101, Up is reduced
The received quantity of message 2, then minimum packet receiving interval B1 can also be determined according to the process performance of control core 101 by controlling core 101, right
This method of determination with no restrictions, and minimum packet receiving interval B1 is stored into the corresponding session information of BFD session 1.
Wherein, minimum packet receiving interval B1 can be inversely proportional with the process performance of control core 101, i.e., process performance is better, then
Minimum packet receiving interval B1 is smaller, and process performance is poorer, then minimum packet receiving interval B1 is bigger.For example, when the CPU of control core 101 makes
It is 20% with rate, then minimum packet receiving interval B1 can be smaller, and such as 50 milliseconds；When control core 101 CPU usage be 80%,
Then minimum packet receiving interval B1 can be bigger, and such as 1 second；Certainly, an above-mentioned example for only determining minimum packet receiving interval B1 is right
This is with no restrictions.
In conclusion when the process performance for controlling core 101 is poor, then minimum packet receiving interval B1 can be set comparison
Greatly, and second network equipment 11 is given out a contract for a project from minimum and is spaced when selecting the larger value in A2 and minimum packet receiving interval B1, between minimum packet receiving
It is typically larger than minimum every B1 and gives out a contract for a project and be spaced A2, that is to say, that second network equipment 11 can be sent out every minimum packet receiving interval B1
A Up message 2 is sent, i.e. control core 101 can receive a Up message 2 every minimum packet receiving interval B1.Due between minimum packet receiving
Can be bigger every B1, therefore, aforesaid way can reduce the received quantity of Up message 2, save the process resource of control core 101.
Obviously, in the above method, when the process performance for controlling core 101 is poor, control core 101 be can be with larger
Minimum give out a contract for a project and be spaced A1 to send Up message 1, and control core 101 and can be and Up is received with biggish minimum packet receiving interval B1
Message 2, so as to save the process resource of control core 101.
Step 202, the session information of the BFD session is synchronized to data core by control core.
Wherein, after the state of BFD session is switched to Up, control core can use the first message and send interval to the second net
Network equipment sends the first BFD message, and the session information of BFD session is synchronized to data core.
In one example, when first network equipment 10 is using multi-core processor, Up is switched in the state of BFD session
Before, then it is handled by control core 101, after the state of BFD session is switched to Up, then controlling core 101 can be according to negative
Balance policy selection data core (such as data core 102) is carried, and the session information of BFD session is synchronized to data core 102, by data
Core 102 handles the BFD session.
After the state of BFD session is switched to Up, control core 101 does not stop sending the first BFD message not instead of at once, sharp
Given out a contract for a project with minimum and be spaced A1 to second network equipment 11 transmission the first BFD message (Up message 1), and the session of BFD session is believed
Breath is synchronized to data core 102, after data core 102 is handled using the session information, then controls core 101 and stops sending first
BFD message, for data core 102 by the session information handled in the way of, and stop send opportunity, in subsequent reality
Apply example introduction.
Wherein, control core 101 is not to stop sending the first BFD message at once, and reason can be:
Control core 101 first can send several Up messages 1 to second network equipment 11, so that second network equipment 11 will
BFD can talk over the stability in Up state, to avoid second network equipment 11 that from can not receiving Up message 1, by BFD session from Up state
It is switched to Down state, then leads to the oscillation of BFD session.
For example, BFD session is cut from control core 101 if BFD session stops sending Up message 1 after being switched to data core 102
When changing to data core 102, if switching time is longer, 10 long-time of first network equipment is sent without second network equipment of normal direction 11
Up message 1 causes second network equipment, 11 long-time to be not received by Up message 1, determines path fails, by BFD session
Down state is switched to from Up state.
In the embodiment of the present application, after BFD session is switched to data core 102, control core 101 can first send Up message
1, in this way, when BFD session is switched to data core 102 from control core 101, even if switching time is longer, first network equipment 10
Control core 101 can also send Up message 1 to second network equipment 11, until data core 102 can set to the second network
Standby 11 send Up messages 1, and control core 101 can just stop sending Up message 1, this way it is possible to avoid when second network equipment 11 is long
Between be not received by Up message 1, avoid second network equipment 11 that BFD session is switched to Down state from Up state.
Step 203, data core receives the synchronous session information of control core, and obtains the second message and send interval, and should
The first message in session information sends interval and is updated to second message transmission interval.
Wherein, which, which sends interval, can be less than above-mentioned first message transmission interval.For example, second message is sent out
The message for sending interval to can be user configuration sends interval, is also possible to what data core was obtained from other equipment, can also be several
According to core from control core obtain (as control core get the second message send interval after, by the second message send interval notification to
Data core), without limitation, as long as data core can get the second message and send interval, and the second message sends interval
It sends and is spaced less than the first message.
It is understood that due to the synchronous session information quantity of control core be it is multiple, data core is obtaining the second message
When sending interval, the second message corresponding with session information need to be obtained and send interval.
In one example, the first message in the session information is sent interval and is updated to the transmission of the second message by data core
Interval, which may include: data core, sends the 2nd BFD message for carrying the second message and sending interval to second network equipment, this
Two BFD messages are used to make second network equipment that the first message of first network equipment is sent interval to be updated to the transmission of the second message
Interval.If data core receives the BFD response message of the 2nd BFD message, the first message in the session information is sent
Interval is updated to the second message and sends interval.
Wherein, data core can periodically send to second network equipment and carry the second message sends interval second
BFD message, until receiving the BFD response message of the 2nd BFD message, then data core can stop to second network equipment
It sends and carries the 2nd BFD message that the second message sends interval.
Moreover, the 2nd BFD message can carry the first label, first label is for indicating first network equipment
Variation occurred at intervals in message transmission；In addition, the BFD response message can carry the second label, second label is for indicating
Second network equipment modified first network equipment message send interval.
In one example, the session information that control core determines can also include that the first message receives interval；Based on this, count
After receiving the synchronous session information of control core according to core, the second message can also be obtained and receive interval, and will be in the session information
The first message receive interval be updated to second message receive interval.
Wherein, which, which receives interval, can be less than first message reception interval, which receives interval
The message that can be user configuration receives interval, is also possible to what data core was obtained from other equipment, without limitation, as long as
Second message receives interval and is less than first message reception interval.
Further, data core can send the 2nd BFD message to second network equipment, and the 2nd BFD message can be taken
The second message of band sends interval and the second message receives interval.Wherein, the 2nd BFD message is for making second network equipment by the
First message of one network equipment, which sends interval and is updated to the second message, sends interval, and by the first message of first network equipment
It receives interval and is updated to the second message reception interval.
Then, if data core receives second network equipment and is directed to the BFD response message that the 2nd BFD message returns,
The first message in the session information can be sent interval and be updated to the second message transmission interval by data core, and the session is believed
The first message in breath receives interval and is updated to the second message reception interval.
Below in conjunction with concrete application scene, above-mentioned steps are illustrated.Data core 102 is in the meeting for getting BFD session 1
After talking about information, the second message of available first network equipment 10 sends interval (give out a contract for a project such as minimum and be spaced A3) and the second report
Text receives interval (minimum packet receiving interval B3), further it is assumed that minimum gives out a contract for a project and is spaced A3 and gives out a contract for a project less than minimum and be spaced A1, minimum packet receiving
It is spaced B3 and is less than minimum packet receiving interval B1.
Then, data core 102 sends the 2nd BFD message to second network equipment 11, and the format of the 2nd BFD message can join
As shown in Figure 3.In the 2nd BFD message, Sta Up indicates that current message is Up message, and Detect Mult is 3, indicates inspection
Multiple 3 is surveyed, My Discriminator is LD100011, YourDiscriminator RD100012, Desired Min TX
Interval gives out a contract for a project for the minimum of first network equipment 10 is spaced A3, and Required Min RX Interval sets for first network
Standby 10 minimum packet receiving interval B3.P (Poll bit) field is the first label (such as 1), indicates the minimum of first network equipment 10
Give out a contract for a project interval and variation occurred at intervals in minimum packet receiving.For the content of other fields of the 2nd BFD message, details are not described herein.
After second network equipment 11 receives the 2nd BFD message, from the 2nd BFD message parses minimum and give out a contract for a project and be spaced A3
With minimum packet receiving interval B3, and the minimum in session information given out a contract for a project and is spaced A1 and is updated to minimum and gives out a contract for a project be spaced A3, it will words letter
Minimum packet receiving interval B1 in breath is updated to minimum packet receiving interval B3.Then, second network equipment 11 is returned to first network equipment
BFD response message of the back stitching to the 2nd BFD message.
Data core 102 receives second network equipment 11 and is directed to the BFD response message that the 2nd BFD message returns, and rings in the BFD
It answers in message, Sta Up, indicates that current message is Up message, Detect Mult is 3, indicates detection multiple 3, My
Discriminator is LD100012, and Your Discriminator is RD100011, Desired Min TX Interval
Give out a contract for a project for the minimum of second network equipment 11 and be spaced A2, Required Min RX Interval be second network equipment 11 most
Small packet receiving interval B2.In addition, F (Final bit) field is the second label (such as 1), indicate that second network equipment 11 is modified
The minimum of first network equipment 10 is given out a contract for a project interval and minimum packet receiving interval.For the content of other fields of BFD response message,
This is repeated no more.
Further, data core 102 can give out a contract for a project the minimum in session information after receiving the BFD response message
Interval A1 is updated to minimum and gives out a contract for a project be spaced A3, and the minimum packet receiving interval B1 in session information is updated to minimum packet receiving interval
B3.So far, the session information of BFD session 1 can include but is not limited to: source IP address, purpose IP address, LD, RD, first network
The minimum of equipment 10, which is given out a contract for a project, is spaced A3 and minimum packet receiving interval B3, and the minimum of second network equipment 11, which is given out a contract for a project, is spaced A2 and minimum receipts
Inter-packet gap B2.
Step 204, data core sends interval using second message and sends the first BFD message (i.e. to second network equipment
Above-mentioned Up message 1), and using second message receive interval detection path whether failure.
For example, the minimum in session information is given out a contract for a project and is spaced A1 and is updated to after minimum gives out a contract for a project and be spaced A3 by data core 102, data
102 periodicity sending Up message 1 of core sends interval (i.e. sending cycle) for the message of Up message 1, then can be using such as lower section
Formula determines: data core 102 is given out a contract for a project from the minimum of first network equipment 10 to be spaced between A3 and the minimum packet receiving of second network equipment 11
Every selecting the larger value in B2, such as selects minimum to give out a contract for a project and be spaced A3, then, data core 102 is given out a contract for a project every minimum is spaced A3, just sends
Up message 1.
In another example data core 102 is after being updated to minimum packet receiving interval B3 for the minimum packet receiving interval B1 in session information,
Can also by Up packet check path whether failure.For example, second network equipment 11 can periodically send Up message 2,
Data core 102 gives out a contract for a project to be spaced in A2 from the minimum packet receiving interval B3 of first network equipment 10 and the minimum of second network equipment 11 to be selected
The larger value is selected, such as selects minimum packet receiving interval B3, and using minimum packet receiving interval B3 as detection time interval, will test between the time
It obtains detecting duration every multiplied by detection multiple；If data core 102 receives and the matched Up of BFD session 1 report in growing when detecting
Text 2, it is determined that the corresponding path of BFD session 1 does not have failure；If data core 102 does not receive and BFD session in growing when detecting
1 matched Up message 2, it is determined that the corresponding path fails of BFD session 1.
In one example, data core is sent to second network equipment carries the 2nd BFD report that the second message sends interval
Wen Hou, data core send a notification message to control core and (send BFD report for indicating that data core has begun to second network equipment
Text)；Core is controlled according to the notification information, stopping sends interval using the first message and sends the first BFD report to second network equipment
Text.Alternatively, data core is sent after interval sends the first BFD message to second network equipment using the second message, data core is to control
Core processed sends a notification message, and control core stops sending interval using the first message to second network equipment according to the notification information
Send the first BFD message.
Based on the above-mentioned technical proposal, in the embodiment of the present application, control core, which can share BFD message in data core, to be sent out
It send, rather than controls core and send all BFD messages, so as to mitigate the performance pressures of control core, improve the network equipment
Disposed of in its entirety performance.Moreover, control core can use biggish first before BFD message is shared data core by control core
Message sends interval and sends BFD message, rather than utilizes lesser second message to send interval and send BFD message, to reduce
The quantity forwarded of BFD message further mitigates the performance pressures of control core.In addition, BFD message is shared data in control core
After core, data core can use lesser second message and send interval transmission BFD message, be so as to accurately detect path
It is no to break down, it detects whether path breaks down in time, improves the accuracy of BFD detection.
Based on similarly applying conceiving with the above method, the embodiment of the present application also proposes a kind of processor, the processor
In above-mentioned first network equipment, as shown in figure 4, being the structural schematic diagram of processor, the processor 40 may include control
Core 41 processed and data core 42 (such as one or more data core 42), in which:
Control core 41 is used for, and determines that the first network equipment and second network equipment are negotiated the two-way converting established and detected
The session information of BFD session, wherein the session information may include that the first message sends interval, and is sent out using first message
Interval is sent to send the first BFD message to second network equipment.
Further, control core 41 is also used to, which is synchronized to data core 42.
In one example, data core 42 is used for, and receives the synchronous session information of control core 41, and obtain the second message
Send interval, wherein second message, which sends interval, can send interval less than first message；By in the session information
One message sends interval and is updated to second message transmission interval, and sends interval to second network equipment using second message
Send the first BFD message.
In one example, the first message in the session information is sent interval and is updated to second message by data core 42
Interval is sent, is specifically used for: sending the 2nd BFD message for carrying second message and sending interval to second network equipment；If connecing
The BFD response message of the 2nd BFD message is received, then the first message in the session information can be sent into interval and be updated to this
Second message sends interval.
Wherein, the first BFD message may be used to second network equipment and detect whether the corresponding path of BFD session is sent out
Raw failure；In addition, the 2nd BFD message may be used to second network equipment will first network equipment the first message send between
Interval is sent every being updated to second message.
In one example, the session information that control core 41 determines can also include that the first message receives interval；It is based on
This, data core 42 is also used to after receiving the synchronous session information of control core 41, is obtained the second message and is received interval, wherein should
Second message, which receives interval, can be less than first message reception interval, and the first message in the session information is received interval
It is updated to second message and receives interval.
Further, the 2nd BFD message that data core 42 is sent can also include that second message receives interval；And
And the 2nd BFD message can be also used for making second network equipment that the first message of first network equipment is received interval updating
It receives and is spaced for second message.
In one example, it is sent in data core 42 to second network equipment and carries second message sends interval second
After BFD message, data core 42 is also used to, and is sent a notification message to control core 41；
Further, control core 41 is also used to, and according to the notification message, stops sending interval using first message to the
Two network equipments send the first BFD message.Alternatively,
It is sent and is spaced to after second network equipment the first BFD message of transmission using second message in data core 42, number
It is also used to according to core 42, sends a notification message to control core 41；
Further, control core 41 is also used to, and according to the notification message, stops sending interval using first message to the
Two network equipments send the first BFD message.
In one example, control core 41 sends interval using first message and sends the first BFD to second network equipment
Before message, control core 41 is also used to, and determines that first message sends interval according to the process performance of control core 41, and by this
One message sends interval and stores into session information.
Based on the above-mentioned technical proposal, in the embodiment of the present application, control core, which can share BFD message in data core, to be sent out
It send, rather than controls core and send all BFD messages, so as to mitigate the performance pressures of control core, improve the network equipment
Disposed of in its entirety performance.Moreover, control core can use biggish first before BFD message is shared data core by control core
Message sends interval and sends BFD message, rather than utilizes lesser second message to send interval and send BFD message, to reduce
The quantity forwarded of BFD message further mitigates the performance pressures of control core.In addition, BFD message is shared data in control core
After core, data core can use lesser second message and send interval transmission BFD message, be so as to accurately detect path
It is no to break down, it detects whether path breaks down in time, improves the accuracy of BFD detection.
The network equipment (such as above-mentioned first network equipment) provided by the embodiments of the present application, for hardware view, hardware frame
Structure schematic diagram specifically may refer to shown in Fig. 5, may include: machine readable storage medium and processor, which can wrap
Include control core and data core (such as one or more data core), in which:
Machine readable storage medium: store instruction code.
Processor: communicating with machine readable storage medium, read and execute stored in machine readable storage medium it is described
Instruction code realizes the operation of BFD message transmissions disclosed in the application above-mentioned example.
Here, machine readable storage medium can be any electronics, magnetism, optics or other physical storage devices, can be with
Include or store information, such as executable instruction, data, etc..For example, machine readable storage medium may is that RAM (Radom
Access Memory, random access memory), volatile memory, nonvolatile memory, flash memory, memory driver is (as hard
Disk drive), solid state hard disk, any kind of storage dish (such as CD, dvd) perhaps similar storage medium or they
Combination.
System, device, module or the unit that above-described embodiment illustrates can specifically realize by computer chip or entity,
Or it is realized by the product with certain function.A kind of typically to realize that equipment is computer, the concrete form of computer can
To be personal computer, laptop computer, cellular phone, camera phone, smart phone, personal digital assistant, media play
In device, navigation equipment, E-mail receiver/send equipment, game console, tablet computer, wearable device or these equipment
The combination of any several equipment.
For convenience of description, it is divided into various units when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit can be realized in the same or multiple software and or hardware when application.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes computer usable program code that the embodiment of the present application, which can be used in one or more,
The computer implemented in computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of program product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It is generally understood that being realized by computer program instructions each in flowchart and/or the block diagram
The combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computer journeys
Sequence instruct to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor with
A machine is generated, so that the instruction generation executed by computer or the processor of other programmable data processing devices is used for
Realize the dress for the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram
It sets.
Moreover, these computer program instructions also can store be able to guide computer or other programmable datas processing set
In standby computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates
Manufacture including command device, the command device are realized in one process of flow chart or multiple processes and/or block diagram one
The function of being specified in a box or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing devices, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer
Or the instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram
The step of function of being specified in one box or multiple boxes.
The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art
For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal
Replacement, improvement etc., should be included within the scope of the claims of this application.
Claims (10)
1. a kind of processor, which is characterized in that the processor is in first network equipment, and the processor includes control core
And data core, in which:
The control core is used for, and determines that the first network equipment and second network equipment are negotiated the two-way converting established and detected
The session information of BFD session, the session information include that the first message sends interval, and sends interval using first message
The first BFD message is sent to second network equipment；
The control core is also used to, and the session information is synchronized to the data core；
The data core is used for, and receives the synchronous session information of the control core, and obtain the second message and send interval, institute
It states the second message and sends interval less than first message transmission interval；First message in the session information is sent
Interval is updated to second message and sends interval, and sends interval using second message and send out to second network equipment
Send the first BFD message.
2. processor according to claim 1, which is characterized in that the data core is by described in the session information
One message sends interval and is updated to the second message transmission interval, is specifically used for:
The 2nd BFD message for carrying second message and sending interval is sent to second network equipment；
If receiving the BFD response message of the 2nd BFD message, first message in the session information is sent
Interval is updated to second message and sends interval；
Wherein, the first BFD message is for making second network equipment detect whether the corresponding path of the BFD session is sent out
Raw failure；The 2nd BFD message is used to that second network equipment to be made to send the first message of the first network equipment
Interval is updated to second message and sends interval.
3. processor according to claim 2, which is characterized in that it is described control core determine the session information further include
First message receives interval；
The data core is also used to after receiving the synchronous session information of the control core, between the second message of acquisition receives
It receives interval every, second message and is less than first message and receive interval, and by described first in the session information
Message receives interval and is updated to the second message reception interval；
The 2nd BFD message that the data core is sent further includes that second message receives interval；
Wherein, the 2nd BFD message is also used to the first message for making second network equipment by the first network equipment
It receives interval and is updated to the second message reception interval.
4. processor according to claim 2, which is characterized in that sent in the data core to second network equipment
After carrying the 2nd BFD message that second message sends interval, the data core is also used to, and is sent to the control core logical
Know message；
The control core is also used to, and according to the notification message, stops sending interval using first message to described second
The network equipment sends the first BFD message；
Alternatively,
Interval, which is sent, using second message in the data core sends the first BFD message to second network equipment
Later, the data core is also used to, and is sent a notification message to the control core；
The control core is also used to, and according to the notification message, stops sending interval using first message to described second
The network equipment sends the first BFD message.
5. processor according to claim 1, which is characterized in that the control core sends interval using first message
Before sending the first BFD message to second network equipment,
The control core is also used to, and determines that the first message sends interval according to the process performance of the control core, and by described the
One message sends interval and stores into the session information.
6. a kind of two-way converting detects BFD message transmitting method, which is characterized in that it is applied to first network equipment, described first
The network equipment includes processor, and the processor includes control core and data core, comprising:
The control core determines that the first network equipment and second network equipment negotiate the session information for the BFD session established,
The session information includes that the first message sends interval, and sends interval to second network equipment using first message
Send the first BFD message；
The session information is synchronized to the data core by the control core；
The data core receives the synchronous session information of the control core, and obtains the second message and send interval, and described the
Two messages send interval and are less than first message transmission interval；First message in the session information is sent into interval
It is updated to second message and sends interval, and send interval using second message and send institute to second network equipment
State the first BFD message.
7. according to the method described in claim 6, it is characterized in that, the data core is by described first in the session information
Message sends interval and is updated to the second message transmission interval, comprising:
The 2nd BFD message for carrying second message and sending interval is sent to second network equipment；
If receiving the BFD response message of the 2nd BFD message, first message in the session information is sent
Interval is updated to second message and sends interval；
Wherein, the first BFD message is for making second network equipment detect whether the corresponding path of the BFD session is sent out
Raw failure；The 2nd BFD message is used to that second network equipment to be made to send the first message of the first network equipment
Interval is updated to second message and sends interval.
8. the method according to the description of claim 7 is characterized in that the session information that the control core determines further includes the
One message receives interval；
After the data core receives the synchronous session information of the control core, the method also includes:
It obtains the second message and receives interval, second message receives interval and receives interval less than first message, will be described
First message in session information receives interval and is updated to the second message reception interval；
Wherein, the 2nd BFD message that the data core is sent further includes that second message receives interval；
The 2nd BFD message is also used to make second network equipment will be between the first message reception of the first network equipment
Interval is received every being updated to second message.
9. the method according to the description of claim 7 is characterized in that the method also includes:
After the data core sends the 2nd BFD message for carrying the second message transmission interval to second network equipment,
The data core sends a notification message to the control core；The control core stops utilizing described the according to the notification message
One message sends interval and sends the first BFD message to second network equipment；
Alternatively,
The data core sends interval using second message and sends the first BFD message to second network equipment
Afterwards, the data core sends a notification message to the control core；The control core stops described in utilization according to the notification message
First message sends interval and sends the first BFD message to second network equipment.
10. according to the method described in claim 6, it is characterized in that, the control core sends interval using first message
Before sending the first BFD message to second network equipment, the method also includes:
The control core determines that the first message sends interval according to the process performance of the control core, and first message is sent out
Interval is sent to store into the session information.
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| CN110535712A (en) * | 2019-09-19 | 2019-12-03 | 杭州迪普科技股份有限公司 | BFD parameter setting method, device, electronic equipment |
| CN110830485A (en) * | 2019-11-13 | 2020-02-21 | 苏州盛科科技有限公司 | Chip implementation method and device for point-to-multipoint bidirectional forwarding detection |
| CN111614556A (en) * | 2019-02-26 | 2020-09-01 | 中兴通讯股份有限公司 | BIER-based bidirectional forwarding detection session creation method and related equipment |
| CN112769959A (en) * | 2021-03-04 | 2021-05-07 | 北京字节跳动网络技术有限公司 | Session synchronization method, device, first node, second node, system and medium |
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| CN112769959A (en) * | 2021-03-04 | 2021-05-07 | 北京字节跳动网络技术有限公司 | Session synchronization method, device, first node, second node, system and medium |
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| CN109150659B (en) | 2020-09-08 |
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