CN106027326A - Link health detection method and link health detection apparatus - Google Patents
Link health detection method and link health detection apparatus Download PDFInfo
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- CN106027326A CN106027326A CN201610304982.2A CN201610304982A CN106027326A CN 106027326 A CN106027326 A CN 106027326A CN 201610304982 A CN201610304982 A CN 201610304982A CN 106027326 A CN106027326 A CN 106027326A
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- outgoing interface
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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
- H04L43/12—Network monitoring probes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
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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
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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
- H04L43/0852—Delays
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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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- Data Exchanges In Wide-Area Networks (AREA)
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Abstract
The invention provides a link health detection method and a link health detection apparatus. The method is applied to a session management server, and comprises the following steps: receiving a detection message which is sent by a network device and carries a detection target and an exit interface; determining a proportion of abnormal state sessions through a session log corresponding to the detection target and the exit interface; according to the proportion, judging whether accessing the detection target through the exit interface is healthy; and if not, sending information about that accessing the detection target through the exit interface is not healthy to the network device, thereby enabling the network device to adjust the exit interface for accessing the detection target. By application of the embodiment of the invention, the session management server performs statistics on the proportion of abnormal state sessions in the session log corresponding to the detection target and the exit interface, thus, whether accessing to the detection target through the exit interface is healthy can be judged, memory usage of the network device can be reduced, forwarding performance of the network device is improved, and the obtained judgment result is more accurate.
Description
Technical field
The application relates to network communication technology field, particularly relates to a kind of link healthprobe method and device.
Background technology
Along with the development of network application, user's internet access speed constantly promotes, and user is to business
Sustainable requests also improves constantly.Strengthen availability and the stability of outgoing interface, make user obtain optimal leading to
Letter circuit, just can ensure that user obtains optimal internet access and experiences.Utilize link healthprobe technology,
In the case of can be implemented in the interruption of certain outgoing interface, still may provide the user with backup outgoing interface.
Existing link healthprobe mode is: issue many for outgoing interface to the network equipment (such as fire wall)
Individual detection target, then the network equipment sends probe messages by this outgoing interface to multiple different detection targets,
And make the statistics of delay, packet loss according to the response message received, and then utilize the delay and packet loss obtained
Rate judges that this outgoing interface is the most healthy.But, if the negligible amounts of detection target, then the delay obtained, lose
The error in datas such as bag rate are big, if the quantity of detection target is more, can take again a large amount of internal memories of the network equipment,
Thus reduce the forwarding performance of the network equipment.
Summary of the invention
In view of this, the application provides a kind of link healthprobe method and device, to solve existing link
The problem that healthprobe mode can reduce the forwarding performance of the network equipment.
First aspect according to the embodiment of the present application, it is provided that a kind of link healthprobe method, described method should
For session management server, described method includes:
Receiving the probe messages that the network equipment sends, described probe messages includes detecting target and outgoing interface；
The session log utilizing described detection target corresponding with described outgoing interface determines the ratio of abnormality session；
Described ratio is utilized to judge to access described detection target by described outgoing interface the most healthy；
It is sent to described if it is not, then the described unsound information of detection target will be accessed by described outgoing interface
The network equipment, so that the described network equipment adjusts the outgoing interface accessing described detection target.
Second aspect according to the embodiment of the present application, it is provided that a kind of link healthprobe method, described method should
For the network equipment, described method includes:
Send to session management server and carry detection target and the probe messages of outgoing interface, so that described meeting
The session log detecting target corresponding with described outgoing interface described in words management server by utilizing determines abnormality meeting
The ratio of words, and it is the most healthy to utilize described ratio to judge to access described detection target by described outgoing interface；
If receive the return of described session management server accesses described detection target not by described outgoing interface
Healthy information, then adjust the outgoing interface accessing described detection target.
The third aspect according to the embodiment of the present application, it is provided that a kind of link healthprobe device, described device should
For session management server, described device includes:
Receiving unit, for receiving the probe messages that the network equipment sends, described probe messages includes detecting mesh
Mark and outgoing interface；
Determine unit, determine exception for the session log utilizing described detection target corresponding with described outgoing interface
The ratio of state session；
First judging unit, is used for utilizing described ratio to judge by described outgoing interface and accesses described detection target
The most healthy；
Transmitting element, for when judged result is no, will access described detection target by described outgoing interface
Unsound information is sent to the described network equipment, so that the described network equipment adjusts accesses described detection target
Outgoing interface.
Fourth aspect according to the embodiment of the present application, it is provided that a kind of link healthprobe device, described device should
For the network equipment, described device includes:
First transmitting element, carries detection target and the spy of outgoing interface for sending to session management server
Observe and predict literary composition, so that described session management server utilizes the session that described detection target is corresponding with described outgoing interface
Daily record determines the ratio of abnormality session, and it is described to utilize described ratio to judge by the access of described outgoing interface
Detection target is the most healthy；
Adjustment unit, if for receiving being accessed by described outgoing interface of described session management server return
The described unsound information of detection target, then adjust the outgoing interface accessing described detection target.
Application the embodiment of the present application, session management server receive the network equipment send carry detection
During the probe messages of target and outgoing interface, utilize the session log that described detection target is corresponding with described outgoing interface
Determine the ratio of abnormality session, and utilize described ratio to judge by the described detection of access of described outgoing interface
Target is the most healthy, if it is not, then the described unsound information of detection target will be accessed by described outgoing interface
It is sent to the network equipment, so that the described network equipment adjusts the outgoing interface accessing described detection target.
Based on above-mentioned implementation, owing to the network equipment is to obtain detection target from data message, just for
Detect outgoing interface corresponding to target to go detect whether health rather than gone by a large amount of detection targets received
Judging that a certain outgoing interface is the most healthy, so, whether health is more targeted to detect interface, and by
Probe messages is then sent to session management server go to make a decision, visits without sending to detection target
Observe and predict literary composition, then add up delay and the packet loss of response message, therefore can reduce the EMS memory occupation of the network equipment,
Improve the forwarding performance of the network equipment.Additionally, due to session management server be by statistics detection target and
In all session log that outgoing interface is corresponding, the session log of abnormality session accounts for all session days of correspondence
The ratio of will, to judge the most healthy by described outgoing interface access detection target rather than to be rung by statistics
Delay and the packet loss of answering message judge, so, will not produce erroneous judgement due to the unstable factor in network,
Therefore, the judged result obtained by the ratio of abnormality session in statistics session log is more accurate.
Accompanying drawing explanation
Fig. 1 is that the application is according to a kind of link healthprobe method and device shown in an exemplary embodiment
Application scenarios schematic diagram；
Fig. 2 is the application embodiment according to a kind of link healthprobe method shown in an exemplary embodiment
Flow chart；
Fig. 3 is the application enforcement according to the another kind of link healthprobe method shown in an exemplary embodiment
Example flow chart；
Fig. 4 is the application enforcement according to the another kind of link healthprobe method shown in an exemplary embodiment
Example flow chart；
Fig. 5 is the application hardware configuration according to a kind of session management server shown in an exemplary embodiment
Figure；
Fig. 6 is the application embodiment according to a kind of link healthprobe device shown in an exemplary embodiment
Structure chart；
Fig. 7 is the application hardware structure diagram according to a kind of network equipment shown in an exemplary embodiment；
Fig. 8 is the application enforcement according to the another kind of link healthprobe device shown in an exemplary embodiment
Example structure chart.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Following retouches
Stating when relating to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.
Embodiment described in following exemplary embodiment does not represent all embodiment party consistent with the application
Formula.On the contrary, they only with describe in detail in appended claims, the application some in terms of mutually one
The example of the apparatus and method caused.
It is only merely for describing the purpose of specific embodiment at term used in this application, and is not intended to be limiting this
Application." a kind of ", " described " of singulative used in the application and appended claims
" it is somebody's turn to do " be also intended to include most form, unless context clearly shows that other implications.It is also understood that
Term "and/or" used herein refer to and comprise any of one or more project of listing being associated or
Likely combine.
Although should be appreciated that may use term first, second, third, etc. to describe various letter in the application
Breath, but these information should not necessarily be limited by these terms.These terms are only used for same type of information district each other
Separately.Such as, in the case of without departing from the application scope, the first information can also be referred to as the second information,
Similarly, the second information can also be referred to as the first information.Depend on linguistic context, word as used in this
" if " can be construed to " ... time " or " when ... time " or " in response to determining ".
Shown in Figure 1, for the application according to a kind of link healthprobe side shown in an exemplary embodiment
The application scenarios schematic diagram of method and device, including: the network equipment, session management server.Wherein, described
The network equipment is used for forwarding data packets, can be the equipment such as switch, router, fire wall；Described meeting
Words management server is monitored management for the session log sending the network equipment.
Shown in Figure 2, for the application according to a kind of link healthprobe side shown in an exemplary embodiment
The embodiment flow chart of method, this embodiment is applied on session management server, comprises the following steps:
Step 201: receive network equipment transmission carries detection target and the probe messages of outgoing interface.
Generally, in enterprise, company or organization network, in order to ensure some business (such as Internet video industry
Business, speculation in stocks business etc.) persistence run and stability, can the network equipment in exit dispose multiple go out
Interface, such as outgoing interface 1, outgoing interface 2 etc..The network equipment needs periodically or according to other strategies, for belonging to
Data message in these business detects the health status of corresponding outgoing interface, to avoid occurring interrupting in business
Time, just go to judge the health problem of interface.Such as, the network equipment can be pre-configured with and there is a need to carry out chain
The service feature of road healthprobe, in preset time period, the network equipment when receiving data message,
Judge whether the service feature that data message carries exists the described service feature needing to carry out link healthprobe
In；The most then obtain the detection target that data message carries, and from routing table, obtain described detection target
Corresponding outgoing interface, then adds to the detection target got and outgoing interface in probe messages, and will
Probe messages is sent to session management server.Therefore, session management server can receive the network equipment
Send carries detection target and the probe messages of outgoing interface.
Wherein, detect the health status of the link that the health status of interface i.e. represents that this outgoing interface is corresponding,
Described detection target refers to the purpose IP address of record in routing table, and described outgoing interface refers to routing table
The outgoing interface of the network equipment of middle record, the outgoing interface that the most described purpose IP address is corresponding.
Step 202: the session log utilizing described detection target corresponding with described outgoing interface determines abnormality meeting
The ratio of words.
The network equipment, when receiving the data message that other network equipments send, can utilize data message to carry
Five-tuple information (including source IP address, source port, purpose IP address, destination interface and protocol number)
Set up session, and ageing timer is set for described session, after described ageing timer time-out, if not
Receiving the response message for described data message, the network equipment then utilizes described conversation establishing session log,
And delete described session, and the status indicator arranging described session log is abnormality mark；Described always
Before changing timer expiry, if receiving the response message for described data message, the network equipment then utilizes
Described conversation establishing session log, and the status indicator that described session log is set be normal condition mark, and
Described session log is sent to session management server.
Wherein, if the network equipment is after ageing timer time-out, described data message still it is not received for
Response message, then be likely to be due to unstable networks factor, the data message sent by described outgoing interface is not had
Have and arrive the equipment that described purpose IP address is pointed to, cause described session abnormal, therefore, it can described meeting
Words are deleted, to save the EMS memory occupation of the network equipment.Due to time of sending datagram from the network equipment to
The time receiving corresponding response message is the shortest, so described ageing timer can include but not limited to it is 5
Millisecond.Meanwhile, the status indicator of the session log of establishment is set to abnormality mark, and will
Words daily record is sent to session management server, in order to whether follow-up judgement accesses detection target by outgoing interface
Health, this judge process is follow-up to be discussed in detail.Additionally, the network equipment is when utilizing conversation establishing session log,
Outside five-tuple information in session being added in session log, also can add corresponding outgoing interface to meeting
In words daily record.
In the embodiment of the present application, determine in the session log utilizing described detection target corresponding with described outgoing interface
During the ratio of abnormality session, session management server can first obtain the spy that probe messages is carried
Survey target and outgoing interface, then count all session log that described detection target is corresponding with described outgoing interface
The first quantity, and count from the session log of the first quantity status indicator be abnormality mark meeting
Second quantity of words daily record, finally utilizes the first quantity and the second quantity to calculate the ratio of described abnormality session
Example.
Wherein, owing to recording five-tuple information and outgoing interface in session log, described five-tuple information includes
Purpose IP address, i.e. detects target, and therefore session management server can get detection target and outgoing interface
First quantity of corresponding all session log, again due in session log also record have status indicator, therefore
The of the session log that status indicator is abnormality mark can be counted from the session log of the first quantity
Two quantity.Described status indicator can include but not limited to it is character or numerical value, such as, and mark 1 expression
Abnormality identifies, mark 2 expression normal condition mark.Or, mark 2 can represent normal condition mark
Knowing, mark 1 can represent that abnormality identifies.
Understand based on foregoing description, owing to the network equipment is to obtain detection target from data message, and only
The outgoing interface corresponding for detection target goes detect whether health rather than detect target in a large number by receiving
Going to judge that a certain outgoing interface is the most healthy, so, whether health is more targeted to detect interface, and
Owing to being probe messages to be sent to session management server go to make a decision, send without to detection target
Probe messages, then add up delay and the packet loss of response message, the internal memory that therefore can reduce the network equipment accounts for
With, improve the forwarding performance of the network equipment.
Step 203: utilize described ratio to judge to access described detection target by described outgoing interface the most healthy,
If it is, perform step 204, if it is not, then perform step 205.
In this step, session management server judges whether described ratio exceedes predetermined threshold value, if it is not, the most true
Fixed healthy by the described outgoing interface described detection target of access, the link that the most described outgoing interface is corresponding is healthy, holds
Row step 204；If, it is determined that by described outgoing interface access described detection target unhealthy, i.e. described in go out
The link that interface is corresponding is unhealthy, performs step 205.
Wherein, predetermined threshold value arbitrarily can select according to practical experience, such as 80%, if described ratio exceedes pre-
If threshold value, then it represents that when accessing described detection target by described outgoing interface, major part does not receive response report
Literary composition, described outgoing interface interrupts, if described ratio is less than predetermined threshold value, then it represents that visited by described outgoing interface
When asking described detection target, only small part does not receive response message, and this it may be the case that due to net
Network unstable factor causes rather than outgoing interface interrupts.
Therefore, session management server determines different by the session log utilizing detection target corresponding with outgoing interface
The often ratio of state session, the most healthy rather than logical to judge by described outgoing interface access detection target
Delay and the packet loss of crossing statistics response message judge.So, will not be due to the unstable factor in network
And produce erroneous judgement, therefore, the judged result utilizing the ratio of abnormality session to obtain is more accurate.
Step 204: the information accessing described detection target healthy by described outgoing interface is sent to described network
Equipment.
If the network equipment receive session management server send by described outgoing interface access described detection mesh
The information that mark is healthy, then terminate current process.
Step 205: the described unsound information of detection target will be accessed by described outgoing interface and be sent to described net
Network equipment, so that the described network equipment adjusts the outgoing interface accessing described detection target.
If the network equipment receive session management server send by described outgoing interface access described detection mesh
Mark unsound information, then utilize new outgoing interface to update described in routing table and detect the outgoing interface that target is corresponding.
Described in above-described embodiment, owing to the network equipment is to obtain detection target from data message, just for
Detect outgoing interface corresponding to target to go detect whether health rather than gone by a large amount of detection targets received
Judging that interface is the most healthy, so, whether health is more targeted to detect interface, and owing to being
Probe messages is sent to session management server go to make a decision, sends detection report without to detection target
Literary composition, then add up delay and the packet loss of response message, therefore can reduce the EMS memory occupation of the network equipment, carry
The forwarding performance of the high network equipment.Additionally, due to session management server is by statistics detection target and to go out
In all session log that interface is corresponding, the session log of abnormality session accounts for all session log of correspondence
Ratio, whether healthy rather than responded by statistics to judge to access detection target by described outgoing interface
Delay and the packet loss of message judge, so, will not produce erroneous judgement due to the unstable factor in network,
Therefore, the judged result obtained by the ratio of abnormality session in statistics session log is more accurate.
Shown in Figure 3, for the application according to the another kind of link healthprobe shown in an exemplary embodiment
The embodiment flow chart of method, this embodiment is applied on the network equipment, comprises the following steps:
Step 301: send to session management server and carry detection target and the probe messages of outgoing interface,
So that the session log that described session management server utilizes described detection target corresponding with described outgoing interface determines
The ratio of abnormality session, and utilize described ratio to judge by the described outgoing interface described detection target of access
The most healthy.
As depicted at step 201, generally, in enterprise, company or organization network, in order to ensure some business
Persistence that (such as network video service, speculation in stocks business etc.) is run and stability, can be in network equipment portion
Affixing one's name to multiple outgoing interface, therefore, the network equipment needs periodically or according to other strategies, for belonging to these business
The health status of outgoing interface corresponding to data message detection, to avoid when interrupting occurs in business, just go to sentence
The health problem of disconnected outgoing interface.Such as, the network equipment can be pre-configured with and there is a need to carry out link healthprobe
Service feature, in preset time period, the network equipment can be when the data message received, it is judged that
Whether the service feature that data message carries exists in the described service feature needing to carry out link healthprobe；
The most then obtain the detection target that data message carries, and it is corresponding to obtain described detection target from routing table
Outgoing interface, then the detection target got and outgoing interface are added in probe messages, and will detection
Message is sent to session management server.
Wherein, detect the health status of the link that the health status of interface i.e. represents that this outgoing interface is corresponding,
Described detection target refers to the purpose IP address of record in routing table, and described outgoing interface refers to routing table
The outgoing interface of the network equipment of middle record, the outgoing interface that the most described purpose IP address is corresponding.
Additionally, as described in step 202, the network equipment is receiving the datagram that other network equipments send
Wen Shi, the five-tuple information that data message can be utilized to carry sets up session, and arrange for described session aging fixed
Time device, after described ageing timer time-out, if being not received for the response message of described data message,
Then utilize described conversation establishing session log, and delete described session, and the state of described session log is set
It is designated abnormality mark；Before described ageing timer time-out, if receiving for described datagram
The response message of literary composition, then utilize described conversation establishing session log, and arrange the state mark of described session log
Know and identify for normal condition, and described session log is sent to session management server.
Wherein, if the network equipment is after ageing timer time-out, described data message still it is not received for
Response message, then be likely to be due to unstable networks factor, the data message sent by described outgoing interface is not had
Have and arrive the equipment that described purpose IP address is pointed to, cause described session abnormal, therefore, it can described meeting
Words are deleted, to save the EMS memory occupation of the network equipment.Due to from the network equipment send data message time
Between the shortest to the time receiving corresponding response message, so described ageing timer can include but not limit
Then 5 milliseconds.Meanwhile, the status indicator of the session log of establishment is set to abnormality mark,
And session log is sent to session management server, in order to follow-up judgement accesses detection mesh by outgoing interface
Mark is the most healthy.Additionally, the network equipment is when utilizing conversation establishing session log, it will the five-tuple in words
Outside information is added in session log, also corresponding outgoing interface can be added in session log.
Judge to access, by described outgoing interface, the mistake that described detection target is the most healthy for session management server
Journey, as described in step 202 and step 203, does not repeats them here.
Understand based on foregoing description, owing to the network equipment is to obtain detection target from data message, just for
Detect outgoing interface corresponding to target to go detect whether health rather than go to sentence by receiving a large amount of detection target
Disconnected outgoing interface is the most healthy, so, detects interface whether health more targeted, and due to be by
Probe messages is sent to session management server and goes to make a decision, and sends probe messages without to detection target,
Add up delay and the packet loss of response message again, therefore can reduce the EMS memory occupation of the network equipment, improve net
The forwarding performance of network equipment.
Additionally, due to session management server is all sessions corresponding with outgoing interface by statistics detection target
In daily record, the session log of abnormality session accounts for the ratio of all session log of correspondence, to judge to pass through
Described outgoing interface accesses whether healthy detection target rather than the delay by statistics response message and packet loss
Judge.So, erroneous judgement will not be produced due to the unstable factor in network, therefore, by statistics meeting
The judged result that in words daily record, the ratio of abnormality session obtains is more accurate.
Step 302: if receive described session management server return by described outgoing interface access described spy
Survey the unsound information of target, then adjust the outgoing interface accessing described detection target.
If the network equipment receive session management server send by described outgoing interface access described detection mesh
Mark unsound information, then adjust the outgoing interface accessing described detection target.
For adjusting the process of outgoing interface accessing described detection target, the network equipment can utilize and new go out to connect
The outgoing interface that target is corresponding is detected described in oral replacement routing table.
If additionally, the network equipment receives the described by the access of described outgoing interface of session management server transmission
The information that detection target is healthy, then terminate current process.
Described in above-described embodiment, owing to the network equipment is to obtain detection target, a pin from data message
Go the outgoing interface that detection target is corresponding detect whether health rather than detect mesh in a large number by receive
Mark goes to judge that a certain outgoing interface is the most healthy, and so, whether health is more targeted to detect interface,
And owing to being probe messages to be sent to session management server go to make a decision, without to detection mesh
Mark transmission probe messages, then add up delay and the packet loss of response message, therefore can reduce the network equipment
EMS memory occupation, improve the network equipment forwarding performance.Additionally, due to session management server is to pass through
In all session log that statistics detection target is corresponding with outgoing interface, the session log of abnormality session accounts for
The ratio of corresponding all session log, the most healthy to judge by described outgoing interface access detection target,
Rather than the delay and packet loss by statistics response message judges, so, will not be due in network
Unstable factor produces erroneous judgement, therefore, is obtained by the ratio of abnormality session in statistics session log
Judged result more accurate.
Shown in Figure 4, for the application according to the another kind of link healthprobe shown in an exemplary embodiment
The embodiment flow chart of method, this embodiment combines the application scenarios of Fig. 1 and is described in detail, including following
Step:
Step 401: the network equipment receives data message.
Owing to the network equipment is for forwarding data packets, therefore, the number that other network equipments send can be received
According to message.
Step 402: the network equipment utilizes the five-tuple information creating session that described data message carries.
Step 403: the network equipment creates session log, and described session log is sent to session management service
Device.
The network equipment (includes source IP address, source port, mesh in the five-tuple information utilizing data message to carry
IP address, destination interface and protocol number) set up session after, aging timing can be set for described session
Device, after described ageing timer time-out, if being not received for the response message of described data message,
The network equipment then utilizes described conversation establishing session log, and deletes described session, and arranges described session day
The status indicator of will is abnormality mark；Before described ageing timer time-out, if receiving for institute
Stating the response message of data message, the network equipment then utilizes described conversation establishing session log, and arranges described
The status indicator of session log is normal condition mark, and described session log is sent to session management service
Device.
Wherein, if the network equipment is after ageing timer time-out, described data message still it is not received for
Response message, then be likely to be due to unstable networks factor, the data message sent by described outgoing interface is not had
Have and arrive the equipment that described purpose IP address is pointed to, cause described session abnormal, therefore, it can described meeting
Words are deleted, to save the EMS memory occupation of the network equipment.Due to from the network equipment send data message time
Between the shortest to the time receiving corresponding response message, so described ageing timer can include but not limit
Then 5 milliseconds.Meanwhile, the status indicator of the session log of establishment is set to abnormality mark,
And session log is sent to session management server, in order to follow-up judgement accesses detection mesh by outgoing interface
Mark is the most healthy, and this judge process is follow-up to be discussed in detail.Additionally, the network equipment is utilizing conversation establishing session
During daily record, outside the five-tuple information in session being added in session log, also can be by described purpose IP
The outgoing interface of address correspondence in the routing table adds in session log.
Step 404: session management server preserves the session log received.
Step 405: the network equipment needs the service feature carrying out link healthprobe from connecing according to be pre-configured with
In the data message received obtain detection target, and obtain from routing table described detection target corresponding go out to connect
Mouthful.
For obtaining detection target and the detailed process of outgoing interface, as depicted at step 201, do not repeat them here.
Understand based on foregoing description, owing to the network equipment is to obtain detection target from data message, and only
The outgoing interface corresponding for detection target goes detect whether health rather than detect target in a large number by receiving
Going to judge that interface is the most healthy, so, whether health is more targeted to detect interface.
Step 406: the network equipment sends to session management server and carries described detection target and described go out to connect
The probe messages of mouth.
Understand based on foregoing description, owing to the network equipment is probe messages to be sent to session management server go
Make a decision, send probe messages without to detection target, then add up delay and the packet loss of response message,
Therefore can reduce the EMS memory occupation of the network equipment, improve the forwarding performance of the network equipment.
Step 407: it is the most healthy that session management server judges to access described detection target by described outgoing interface.
For, it is judged that access, by described outgoing interface, the process that described detection target is the most healthy, such as step 202
With described in step 203, repeat no more.
Understand based on foregoing description, owing to session management server is by statistics detection target and outgoing interface pair
In all session log answered, the session log of abnormality session accounts for the ratio of all session log of correspondence,
To judge rather than prolonging by statistics response message the most healthy by described outgoing interface access detection target
Judge with packet loss late.So, erroneous judgement will not be produced due to the unstable factor in network, therefore,
The judged result obtained by the ratio of abnormality session in statistics session log is more accurate.
Step 408: result of detection information is sent to the network equipment by session management server.
Step 409: the network equipment adjusts the outgoing interface accessing detection target according to result of detection information.
If the network equipment receive session management server send by described outgoing interface access described detection mesh
Mark unsound information, then utilize new outgoing interface to update described in routing table and detect the outgoing interface that target is corresponding；
If receiving the information being accessed described detection target health by described outgoing interface that session management server sends,
Then terminate current process.
Described in above-described embodiment, owing to the network equipment is to obtain detection target from data message, and only
Go detect whether health rather than detect mesh in a large number by receive for the outgoing interface that detection target is corresponding
Mark goes to judge that a certain outgoing interface is the most healthy, and so, whether health is more targeted to detect interface, and
And owing to being probe messages to be sent to session management server go to make a decision, send out without to detection target
Send probe messages, then add up delay and the packet loss of response message, therefore can reduce the internal memory of the network equipment
Take, improve the forwarding performance of the network equipment.Additionally, due to session management server is to be detected by statistics
In all session log that target is corresponding with outgoing interface, the session log of abnormality session accounts for all of correspondence
The ratio of session log, to judge the most healthy by described outgoing interface access detection target rather than to pass through
Delay and the packet loss of statistics response message judge, so, will not produce due to the unstable factor in network
Raw erroneous judgement, therefore, the judged result obtained by the ratio of abnormality session in statistics session log is more
Accurately.
Corresponding with the embodiment of aforementioned link healthprobe method, present invention also provides link healthprobe
The embodiment of device.
The embodiment of the application link healthprobe device can be applied on session management server.Device is real
Execute example to be realized by software, it is also possible to realize by the way of hardware or software and hardware combining.With software
As a example by realization, as the device on a logical meaning, it is that the processor by its place equipment is by non-volatile
Property memorizer in corresponding computer program instructions read internal memory runs and formed.For hardware view,
As it is shown in figure 5, be a kind of hardware structure diagram of the application link healthprobe device place equipment, except Fig. 5
Outside shown processor, internal memory, network interface and nonvolatile memory, device institute in embodiment
Equipment generally according to the actual functional capability of this equipment, it is also possible to include other hardware, this repeated no more.
Shown in Figure 6, fill according to a kind of link healthprobe shown in an exemplary embodiment for the application
The example structure figure put, this embodiment is applied on session management server, and this embodiment includes: receive
Unit 610, determine unit the 620, first judging unit 630, transmitting element 640.
Wherein, described reception unit 610, for receiving the probe messages that the network equipment sends, described detection report
Literary composition includes detecting target and outgoing interface；
Described determine unit 620, true for the session log utilizing described detection target corresponding with described outgoing interface
Determine the ratio of abnormality session；
Described first judging unit 630, is used for utilizing described ratio to judge by described outgoing interface and accesses described spy
Survey target the most healthy；
Described transmitting element 640, for when judged result is no, will access described spy by described outgoing interface
Survey the unsound information of target and be sent to the described network equipment, so that the described network equipment adjusts accesses described spy
Survey the outgoing interface of target.
In an optional implementation, described determine unit 620, specifically for obtaining described probe messages
The detection target carried and outgoing interface；Count all sessions that described detection target is corresponding with described outgoing interface
First quantity of daily record；Counting status indicator from the session log of described first quantity is abnormality mark
Second quantity of the session log known；Described first quantity and described second quantity is utilized to calculate described abnormal shape
The ratio of state session.
In another optional implementation, described first judging unit 630, specifically for judging described ratio
Whether example exceedes predetermined threshold value；If, it is determined that access described detection target by described outgoing interface unhealthy；
If not, it is determined that access described detection target by described outgoing interface healthy.
The embodiment of the application link healthprobe device can be applied on the network equipment.As it is shown in fig. 7,
For the another kind of hardware structure diagram of the application link healthprobe device place equipment, except the place shown in Fig. 7
Outside reason device, internal memory, network interface and nonvolatile memory, the equipment at device place in embodiment
Actual functional capability generally according to this equipment, it is also possible to include other hardware, this is repeated no more.
Shown in Figure 8, for the application according to the another kind of link healthprobe shown in an exemplary embodiment
The example structure figure of device, this embodiment is applied on the network equipment, and this embodiment includes: first sends
Unit 810, adjustment unit 820.
Wherein, described first transmitting element 810, carry detection target for sending to session management server
With the probe messages of outgoing interface so that described session management server utilizes described detection target and described goes out to connect
Mouthful corresponding session log determines the ratio of abnormality session, and utilize described ratio judge by described go out
Target is detected the most healthy described in interface accessing；
Described adjustment unit 820, if for receive described session management server return pass through described in go out to connect
Mouth accesses the described unsound information of detection target, then adjust the outgoing interface accessing described detection target.
In an optional implementation, the described network equipment is configured with and needs to carry out link healthprobe
Service feature, described device also includes (not shown in Fig. 8):
Receive unit, for carrying detection mesh at described first transmitting element to session management server transmission
Before the probe messages of mark and outgoing interface, receive data message；
Second judging unit, for judging whether the service feature that described data message carries exists described needs
Carry out in the service feature of link healthprobe；
Acquiring unit, for when judged result is for being, obtains the detection target that described data message carries,
And from routing table, obtain the outgoing interface that described detection target is corresponding, and perform to send to session management server
Carry the process of the probe messages of detection target and outgoing interface.
In another optional implementation, described device also includes (not shown in Fig. 8):
Session log creating unit, utilizes described data after receiving data message at described reception unit
The five-tuple information that message carries sets up session, and arranges ageing timer for described session；Described aging
After timer expiry, if being not received for the response message of described data message, then utilize described session
Create session log, and the status indicator arranging described session log is abnormality mark, in described time-out
Before time time-out, if receiving the response message for described data message, then utilize described conversation establishing
Session log, and the status indicator that described session log is set be normal condition mark；Wherein, described session
In daily record, record has detection target and the corresponding relation of outgoing interface；
Second transmitting element, for being sent to session management server by described session log.
In said apparatus, the function of unit and the process that realizes of effect specifically refer to corresponding step in said method
Rapid realizes process, does not repeats them here.
For device embodiment, owing to it corresponds essentially to embodiment of the method, so relevant part sees
The part of embodiment of the method illustrates.Device embodiment described above is only schematically, wherein
The described unit illustrated as separating component can be or may not be physically separate, as unit
The parts of display can be or may not be physical location, i.e. may be located at a place, or also may be used
To be distributed on multiple NE.Some or all of module therein can be selected according to the actual needs
Realize the purpose of the application scheme.Those of ordinary skill in the art in the case of not paying creative work,
I.e. it is appreciated that and implements.
Described in above-described embodiment, owing to the network equipment is to obtain detection target from data message, just for
Detect outgoing interface corresponding to target to go detect whether health rather than gone by a large amount of detection targets received
Judging that a certain outgoing interface is the most healthy, so, whether health is more targeted to detect interface, and by
Probe messages is then sent to session management server go to make a decision, visits without sending to detection target
Observe and predict literary composition, then add up delay and the packet loss of response message, therefore can reduce the EMS memory occupation of the network equipment,
Improve the forwarding performance of the network equipment.Additionally, due to session management server be by statistics detection target and
In all session log that outgoing interface is corresponding, the session log of abnormality session accounts for all session days of correspondence
The ratio of will, to judge the most healthy by described outgoing interface access detection target rather than to be rung by statistics
Delay and the packet loss of answering message judge, so, will not produce erroneous judgement due to the unstable factor in network,
Therefore, the judged result obtained by the ratio of abnormality session in statistics session log is more accurate.
The foregoing is only the preferred embodiment of the application, not in order to limit the application, all in this Shen
Within spirit please and principle, any modification, equivalent substitution and improvement etc. done, should be included in this Shen
Within the scope of please protecting.
Claims (12)
1. a link healthprobe method, it is characterised in that described method is applied to session management server
On, described method includes:
Receiving the probe messages that the network equipment sends, described probe messages includes detecting target and outgoing interface；
The session log utilizing described detection target corresponding with described outgoing interface determines the ratio of abnormality session；
Described ratio is utilized to judge to access described detection target by described outgoing interface the most healthy；
It is sent to described if it is not, then the described unsound information of detection target will be accessed by described outgoing interface
The network equipment, so that the described network equipment adjusts the outgoing interface accessing described detection target.
Method the most according to claim 1, it is characterised in that described utilize described detection target and institute
State session log corresponding to outgoing interface and determine the ratio of abnormality session, including:
Obtain detection target and outgoing interface that described probe messages is carried；
Count the first quantity of the described detection target all session log corresponding with described outgoing interface；
The session log that status indicator is abnormality mark is counted from the session log of described first quantity
The second quantity；
Described first quantity and described second quantity is utilized to calculate the ratio of described abnormality session.
Method the most according to claim 1, it is characterised in that described utilize described ratio judge pass through
It is the most healthy that described outgoing interface accesses described detection target, including:
Judge whether described ratio exceedes predetermined threshold value；
If, it is determined that access described detection target by described outgoing interface unhealthy；
If not, it is determined that access described detection target by described outgoing interface healthy.
4. a link healthprobe method, it is characterised in that described method is applied on the network equipment, institute
The method of stating includes:
Send to session management server and carry detection target and the probe messages of outgoing interface, so that described meeting
The session log detecting target corresponding with described outgoing interface described in words management server by utilizing determines abnormality meeting
The ratio of words, and it is the most healthy to utilize described ratio to judge to access described detection target by described outgoing interface；
If receive the return of described session management server accesses described detection target not by described outgoing interface
Healthy information, then adjust the outgoing interface accessing described detection target.
Method the most according to claim 4, it is characterised in that be configured with needs in the described network equipment
Carry out the service feature of link healthprobe, described send to session management server carry detection target and
Before the probe messages of outgoing interface, described method also includes:
Receive data message；
Judge whether the service feature that described data message carries exists described needs and carry out link healthprobe
In service feature；
The most then obtain the detection target that described data message carries, and from routing table, obtain described detection
Outgoing interface that target is corresponding, and perform to send to session management server to carry detection target and outgoing interface
The process of probe messages.
Method the most according to claim 5, it is characterised in that after described reception data message, institute
Method of stating also includes:
The five-tuple information utilizing described data message to carry sets up session, and arrange for described session aging fixed
Time device；After described ageing timer time-out, if being not received for the response message of described data message,
Then utilize described conversation establishing session log, and the status indicator arranging described session log is abnormality mark
Know, before described time-out time time-out, if receiving the response message for described data message, then profit
By described conversation establishing session log, and the status indicator arranging described session log is normal condition mark；
Wherein, in described session log, record has detection target and the corresponding relation of outgoing interface；
Described session log is sent to session management server.
7. a link healthprobe device, it is characterised in that described device is applied to session management server
On, described device includes:
Receiving unit, for receiving the probe messages that the network equipment sends, described probe messages includes detecting mesh
Mark and outgoing interface；
Determine unit, determine exception for the session log utilizing described detection target corresponding with described outgoing interface
The ratio of state session；
First judging unit, is used for utilizing described ratio to judge by described outgoing interface and accesses described detection target
The most healthy；
Transmitting element, for when judged result is no, will access described detection target by described outgoing interface
Unsound information is sent to the described network equipment, so that the described network equipment adjusts accesses described detection target
Outgoing interface.
Device the most according to claim 7, it is characterised in that described determine unit, specifically for obtaining
Take detection target and outgoing interface that described probe messages is carried；Count described detection target and described outgoing interface
First quantity of corresponding all session log；State mark is counted from the session log of described first quantity
Know the second quantity of the session log identified for abnormality；Utilize described first quantity and described second quantity
Calculate the ratio of described abnormality session.
Device the most according to claim 7, it is characterised in that described first judging unit, specifically uses
In judging whether described ratio exceedes predetermined threshold value；If, it is determined that access described spy by described outgoing interface
Survey target is unhealthy；If not, it is determined that access described detection target by described outgoing interface healthy.
10. a link healthprobe device, it is characterised in that described device is applied on the network equipment,
Described device includes:
First transmitting element, carries detection target and the spy of outgoing interface for sending to session management server
Observe and predict literary composition, so that described session management server utilizes the session that described detection target is corresponding with described outgoing interface
Daily record determines the ratio of abnormality session, and it is described to utilize described ratio to judge by the access of described outgoing interface
Detection target is the most healthy；
Adjustment unit, if for receiving being accessed by described outgoing interface of described session management server return
The described unsound information of detection target, then adjust the outgoing interface accessing described detection target.
11. devices according to claim 10, it is characterised in that be configured with in the described network equipment and need
The service feature of link healthprobe to be carried out, described device also includes:
Receive unit, for carrying detection mesh at described first transmitting element to session management server transmission
Before the probe messages of mark and outgoing interface, receive data message；
Second judging unit, for judging whether the service feature that described data message carries exists described needs
Carry out in the service feature of link healthprobe；
Acquiring unit, for when judged result is for being, obtains the detection target that described data message carries,
And from routing table, obtain the outgoing interface that described detection target is corresponding, and perform to send to session management server
Carry the process of the probe messages of detection target and outgoing interface.
12. devices according to claim 10, it is characterised in that described device also includes:
Session log creating unit, utilizes described data after receiving data message at described reception unit
The five-tuple information that message carries sets up session, and arranges ageing timer for described session；Described aging
After timer expiry, if being not received for the response message of described data message, then utilize described session
Create session log, and the status indicator arranging described session log is abnormality mark, in described time-out
Before time time-out, if receiving the response message for described data message, then utilize described conversation establishing
Session log, and the status indicator that described session log is set be normal condition mark；Wherein, described session
In daily record, record has detection target and the corresponding relation of outgoing interface；
Second transmitting element, for being sent to session management server by described session log.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921948A (en) * | 2019-03-27 | 2019-06-21 | 新华三技术有限公司 | Fault detection method, device and the gateway of data plane |
| CN110224885A (en) * | 2019-05-31 | 2019-09-10 | 东软集团股份有限公司 | Alarm method, device, storage medium and the electronic equipment of monitoring of tools |
| CN111181812A (en) * | 2020-01-03 | 2020-05-19 | 四川新网银行股份有限公司 | Link fault detection method based on network flow |
| CN111245666A (en) * | 2018-11-29 | 2020-06-05 | 华为技术有限公司 | Data transmission method, device and system |
| CN111371791A (en) * | 2020-03-06 | 2020-07-03 | 深信服科技股份有限公司 | Access relation determining method, device, equipment and medium |
| CN111711544A (en) * | 2020-05-15 | 2020-09-25 | 北京奇艺世纪科技有限公司 | Link dial testing method and device, electronic equipment and storage medium |
| CN112260903A (en) * | 2020-10-29 | 2021-01-22 | 杭州迪普科技股份有限公司 | Link monitoring method and device |
| CN112527610A (en) * | 2019-09-17 | 2021-03-19 | 北京国双科技有限公司 | Method and device for monitoring operation state of equipment |
| CN115633076A (en) * | 2022-12-19 | 2023-01-20 | 亿海蓝（北京）数据技术股份公司 | Session management method and system, readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752141A (en) * | 2012-06-29 | 2012-10-24 | 杭州迪普科技有限公司 | Method and device for detecting accessibility of IP (internet protocol) address |
| CN103124290A (en) * | 2012-12-11 | 2013-05-29 | 广东电网公司电力调度控制中心 | Load balancing method based on combined application of reverse isolation devices and isolation gateway |
| CN104394009A (en) * | 2014-10-29 | 2015-03-04 | 中国建设银行股份有限公司 | Fault information processing method and device |
-
2016
- 2016-05-10 CN CN201610304982.2A patent/CN106027326B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752141A (en) * | 2012-06-29 | 2012-10-24 | 杭州迪普科技有限公司 | Method and device for detecting accessibility of IP (internet protocol) address |
| CN103124290A (en) * | 2012-12-11 | 2013-05-29 | 广东电网公司电力调度控制中心 | Load balancing method based on combined application of reverse isolation devices and isolation gateway |
| CN104394009A (en) * | 2014-10-29 | 2015-03-04 | 中国建设银行股份有限公司 | Fault information processing method and device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111245666A (en) * | 2018-11-29 | 2020-06-05 | 华为技术有限公司 | Data transmission method, device and system |
| CN111245666B (en) * | 2018-11-29 | 2022-12-06 | 华为技术有限公司 | Data transmission method, device and system |
| CN109921948B (en) * | 2019-03-27 | 2022-07-29 | 新华三技术有限公司 | Fault detection method and device for data plane and gateway equipment |
| CN109921948A (en) * | 2019-03-27 | 2019-06-21 | 新华三技术有限公司 | Fault detection method, device and the gateway of data plane |
| CN110224885A (en) * | 2019-05-31 | 2019-09-10 | 东软集团股份有限公司 | Alarm method, device, storage medium and the electronic equipment of monitoring of tools |
| CN110224885B (en) * | 2019-05-31 | 2021-09-17 | 东软集团股份有限公司 | Equipment monitoring alarm method and device, storage medium and electronic equipment |
| CN112527610A (en) * | 2019-09-17 | 2021-03-19 | 北京国双科技有限公司 | Method and device for monitoring operation state of equipment |
| CN111181812A (en) * | 2020-01-03 | 2020-05-19 | 四川新网银行股份有限公司 | Link fault detection method based on network flow |
| CN111371791A (en) * | 2020-03-06 | 2020-07-03 | 深信服科技股份有限公司 | Access relation determining method, device, equipment and medium |
| CN111711544A (en) * | 2020-05-15 | 2020-09-25 | 北京奇艺世纪科技有限公司 | Link dial testing method and device, electronic equipment and storage medium |
| CN112260903A (en) * | 2020-10-29 | 2021-01-22 | 杭州迪普科技股份有限公司 | Link monitoring method and device |
| CN112260903B (en) * | 2020-10-29 | 2022-03-25 | 杭州迪普科技股份有限公司 | Link monitoring method and device |
| CN115633076A (en) * | 2022-12-19 | 2023-01-20 | 亿海蓝（北京）数据技术股份公司 | Session management method and system, readable storage medium |
| CN115633076B (en) * | 2022-12-19 | 2023-03-14 | 亿海蓝（北京）数据技术股份公司 | Session management method and system, readable storage medium |
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