CN104601492B - The method and device of business flow control is carried out under a kind of NFV frameworks - Google Patents
The method and device of business flow control is carried out under a kind of NFV frameworks Download PDFInfo
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Abstract
The embodiment of the invention discloses the method and device for carrying out business flow control under a kind of NFV frameworks, for when service access to can be in the system of real-time extension when, flow is controlled.Present invention method includes：When virtual resource deficiency, then the virtual resource is extended according to preset rules, count the number of the virtual resource extension, when the number of the extension reaches preset first threshold, then stop being extended the virtual resource, when the number of the extension reaches preset first threshold within the preset period 1 and does not have the virtual resource free time, then the access of limit service.In this way, when virtual resource deficiency, virtual resource is extended so that business can be normally carried out, when business continues to increase to more than the system specification, by controlling virtual resource unlimited extension and limiting the access of new business, to realize accurate flow control.
Description
Technical field
The present invention relates to the method and devices that business flow control is carried out under the communications field more particularly to a kind of NFV frameworks.
Background technology
NFV (Network Function Virtualization, network function virtualization) is logical by using x86 etc.
It is handled with the software of property hardware and virtualization technology, bearing function, it is new to reduce one kind of equipment cost of network costliness
Framework.By software and hardware decoupling and function modeling, network equipment function is made to be no longer dependent on specialized hardware, resource can fully spirit
It is living shared, realize the quick exploitation and deployment of new business, and automatic deployment, elastic telescopic are carried out based on practical business demand
(scaling) etc..Under NFV new architectures, it can continue to extend although physical resource (hardware) is sufficient, when virtual resource deficiency,
But extension cannot be unlimited, because needing a large amount of data of real-time synchronization between virtual resource, concurrent is many-to-one logical
Flow is very big caused by the instantaneous burst of letter, can influence VNF (Virtualized Network Function, virtual network work(
Can) overall performance, it is also possible to the collapse of system is directly resulted in, so in the big flow business feelings for being continued above the system specification
Under condition, it is still desirable to carry out flow control to system.
The prior art is to carry out flow control by resources occupation rate as legacy system：As virtual resource occupancy (such as CPU
Occupancy etc.) be more than some flow control item startup threshold, then start flow control；When virtual resource occupancy stops door less than flow control
After limit, stop flow control.
But under NFV architecture environments, resource all virtualizes, and virtual resource is not corresponded with physical resource, virtually
Resource is physical resource to be generated by virtualization, when virtual resource deficiency, does not represent physical resource deficiency, and virtual resource
Flow control can be carried out by judging whether virtual resource overloads, accuracy is inadequate, be easy to cause and accidentally flow with continuation application after deficiency
Control.Flow control is just started when system virtualization inadequate resource, business can not access, and physical resource is still very abundant at this time can be with
Processing business seriously affects system availability.
Invention content
An embodiment of the present invention provides the method and device of business flow control is carried out under a kind of NFV frameworks, it can be achieved that with industry is worked as
When business is linked into virtual resource, flow is controlled.
First aspect of the embodiment of the present invention provides a kind of method that business flow control is carried out under NFV frameworks, including：
When virtual resource deficiency, then the virtual resource is extended according to preset rules；
Count the number of the virtual resource extension；
When the number of the extension reaches preset first threshold, then stop being extended the virtual resource；
When the number of the extension reaches preset first threshold and without virtual resource sky within the preset period 1
Idle, the then access of limit service.
In conjunction with the embodiment of the present invention in a first aspect, in the first realization method of first aspect of the embodiment of the present invention, working as
When the virtual resource deficiency, then before being extended to the virtual resource according to preset rules, the method further includes：Sentence
Whether disconnected virtual resource is sufficient；
It is described to judge whether abundance specifically includes virtual resource：
Judge whether the occupancy of all virtual resources is higher than preset second threshold within preset second round, if
It is, then it represents that virtual resource is insufficient, if not, then it represents that virtual resource is sufficient.
In conjunction with the embodiment of the present invention in a first aspect, in second of realization method of first aspect of the embodiment of the present invention, uniting
Before the number for counting the virtual resource extension, the method further includes：
First threshold is set in the field defined by NFV standards, and the first threshold is that the virtual resource is expansible
Number.
In conjunction with the first realization method of first aspect of the embodiment of the present invention, first aspect and second of first aspect
Realization method, in the third realization method of first aspect of the embodiment of the present invention, the method further includes：
When there is the virtual resource free time, then the virtual resource of releasing idling.
In conjunction with the third realization method of first aspect of the embodiment of the present invention, the 4th kind of first aspect of the embodiment of the present invention
In realization method, when there is the virtual resource free time, then before the virtual resource of releasing idling, the method further includes：Judge
Whether there is virtual resource idle；
It is described to judge whether there is the virtual resource free time and specifically include：
Judge whether the occupancy of each virtual resource is less than preset third threshold value within the preset period 3 successively,
If so, indicating that the virtual resource is idle, if not, then it represents that the virtual resource is not idle.
In conjunction with the third realization method of first aspect of the embodiment of the present invention, the 5th kind of first aspect of the embodiment of the present invention
In realization method, after the virtual resource of releasing idling, the method further includes：The extension is reduced according to default rule
Number.
In conjunction with the first realization method of first aspect of the embodiment of the present invention, first aspect and second of first aspect
Realization method, in the 6th kind of realization method of first aspect of the embodiment of the present invention, the access of limit service specifically includes：
The service access for allowing priority high, the service access for preventing priority low.
Second aspect of the present invention provides the device that business flow control is carried out under a kind of NFV frameworks, including：
Expanding element, for when virtual resource deficiency, being then extended to the virtual resource according to preset rules；
Statistic unit, the number for counting the virtual resource extension；
Stop unit then stops expanding the virtual resource when the number of the extension reaches preset threshold value
Exhibition；
Limiting unit reaches preset first threshold within the preset period 1 for the number when the extension and does not have
When having the virtual resource free time, then the access of limit service.
It is described in the first realization method of second aspect of the embodiment of the present invention in conjunction with second aspect of the embodiment of the present invention
Device further includes：
First judging unit is used for when the virtual resource deficiency, then according to preset rules to the virtual resource
Before being extended, judge whether virtual resource is sufficient；It is described to judge whether abundance specifically includes virtual resource：Judge all
Whether the occupancy of virtual resource is higher than preset second threshold within preset second round, if so, indicating virtual resource
Deficiency, if not, then it represents that virtual resource is sufficient.
It is described in second of realization method of second aspect of the embodiment of the present invention in conjunction with second aspect of the embodiment of the present invention
Device further includes：
Setting unit is used for before the number for counting the virtual resource extension, in the field defined by NFV standards
First threshold is set, and the first threshold is the expansible number of the virtual resource.
In conjunction with the first realization method of second aspect of the embodiment of the present invention, second aspect and second of second aspect
Realization method, in the third realization method of second aspect of the embodiment of the present invention, described device further includes：
Releasing unit, for when there is the virtual resource free time, then the virtual resource of releasing idling.
In conjunction with the third realization method of second aspect of the embodiment of the present invention, the 4th kind of second aspect of the embodiment of the present invention
In realization method, described device further includes：
Second judgment unit, for when there is the virtual resource free time, then before the virtual resource of releasing idling, judgement to be
It is no to have virtual resource idle；It is described to judge whether there is the virtual resource free time and specifically include：Accounting for for each virtual resource is judged successively
Whether it is less than preset third threshold value within the preset period 3 with rate, if so, indicate that the virtual resource is idle, if
It is no, then it represents that the virtual resource is not idle.
In conjunction with the third realization method of second aspect of the embodiment of the present invention, the 5th kind of second aspect of the embodiment of the present invention
In realization method, described device further includes：
Subtrahend unit, for after the virtual resource of releasing idling, time of the extension to be reduced according to default rule
Number.
In conjunction with the first realization method of second aspect of the embodiment of the present invention, second aspect and second of second aspect
Realization method, in the 6th kind of realization method of second aspect of the embodiment of the present invention, the limiting unit includes：
Limit module, the service access for allowing priority high, the service access for preventing priority low.
The embodiment of the present invention is when service access is to virtual resource, when virtual resource deficiency, then according to preset rules pair
The virtual resource is extended, and counts the number of virtual resource extension, when the number of the extension reaches preset the
When one threshold value, then stop being extended the virtual resource, when the number of the extension reaches within the preset period 1
Preset first threshold and without the virtual resource free time when, then the access of limit service.In this way, when virtual resource deficiency, to void
Quasi- resource expansion so that business can be normally carried out, when business continues to increase, by control virtual resource unlimited extension with
And the access of limitation new business, to realize accurate flow control.
Description of the drawings
Fig. 1 is one embodiment schematic diagram based on the method for data-flow-control under NFV frameworks in the embodiment of the present invention；
Fig. 2 is another embodiment schematic diagram based on the method for data-flow-control under NFV frameworks in the embodiment of the present invention；
Fig. 3 is another embodiment schematic diagram based on the method for data-flow-control under NFV frameworks in the embodiment of the present invention；
Fig. 4 is one embodiment schematic diagram based on the device of data-flow-control under NFV frameworks in the embodiment of the present invention；
Fig. 5 is another embodiment schematic diagram based on the device of data-flow-control under NFV frameworks in the embodiment of the present invention；
Fig. 6 is another embodiment schematic diagram based on the device of data-flow-control under NFV frameworks in the embodiment of the present invention；
Fig. 7 is that one embodiment based on the concrete application scene of data-flow-control under NFV frameworks is shown in the embodiment of the present invention
It is intended to.
Specific implementation mode
An embodiment of the present invention provides the method and devices that business flow control is carried out under a kind of NFV frameworks, are connect for working as business
When entering to virtual resource, flow is controlled.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1, carries out one embodiment packet of the method for business flow control in the embodiment of the present invention under NFV frameworks
It includes：
101, when virtual resource deficiency, then the virtual resource is extended according to preset rules；
NFV frameworks are to be handled by using general purpose hardware and virtualization technology to carry very multi-functional software, from
And the equipment cost of network costliness is reduced, network equipment function can be made to eliminate the reliance on by software and hardware decoupling and function modeling
In specialized hardware, resource fully can flexibly be shared, and realize the quick exploitation and deployment of new business, and be based on practical business demand
Carry out automatic deployment.When service traffics are big, virtual resource is insufficient, and such as physical resource is sufficient at this time, then is carried out to virtual resource
Extension, improves system processing power, and NFV frameworks can also be based on practical business and carry out elastic telescopic, i.e., expand virtual resource
Exhibition improves the performance of system with release.
102, the number of the virtual resource extension is counted；
Because in NFV environment, used is common hardware, and cost is relatively low, so under normal circumstances, physical resource
It is sufficient, it is possible to virtual resource is repeatedly extended, but because needing a large amount of data of real-time synchronization between virtual resource,
If carrying out unconfined extension to virtual resource, then when concurrent many-to-one communication, flow caused by instantaneous burst
It is larger, the overall performance of virtual network function can be influenced, so needing to limit the number extended.
103, when the number of the extension reaches preset first threshold, then stop expanding the virtual resource
Exhibition；
In order to ensure the overall performance of virtual network function, limited number of times first threshold is set in system, when extension
When number reaches first threshold, then no longer virtual resource is extended, thus will not instantaneously happen suddenly and generate larger flow.
104, when the number of the extension reaches preset first threshold within the preset period 1 and does not provide virtually
When the free time of source, then the access of limit service；
When new business is without limitation access of virtual Internet resources, the overall performance of virtual network function can be also influenced, when
When just having reached first threshold within certain period to the number of virtual resource extension, then it represents that need at this time a large amount of virtual
If resource needs to limit in new service access to system if being also idle state without virtual resource at this time, to ensure
Virtual resource enables to accessed business that can be normally carried out.
An embodiment of the present invention provides a kind of methods that business flow control is carried out under NFV frameworks, for when service access to void
When quasi- resource, flow is controlled.Including：When virtual resource deficiency, then according to preset rules to the virtual resource into
Row extension counts the number of the virtual resource extension, when the number of the extension reaches preset first threshold, then no longer
The virtual resource is extended, when the number of the extension reach within the preset period 1 preset first threshold and
When there is no the virtual resource free time, then the access of limit service.In this way, when virtual resource deficiency, virtual resource is extended so that industry
Business can be normally carried out, when business continues to increase, by controlling virtual resource unlimited extension and limiting connecing for new business
Enter, to realize accurate flow control.
It should be noted that all schemes of the present invention are applicable in all systems that can carry out real-time extension, some systems by
It is long the time required to virtual machine performance problem, elastic telescopic, it is also possible to first to start flow control and carry out elastic telescopic again, this programme is also same
Sample is applicable in, and is repeated no more below.
In above-described embodiment, describes when virtual resource deficiency, the virtual resource is extended, in practical application
In, further include judging whether virtual resource is sufficient before this；Before the number for counting the virtual resource extension, setting
First threshold can also be by being arranged in field that NFV standards define；It, then can be with releasing idling when there is the virtual resource free time
Virtual resource, below to judging whether virtual resource is sufficient, virtual resource that first threshold and releasing idling is arranged is done specifically
Description, please refers to shown in Fig. 2, and another embodiment for carrying out the method for business flow control in the embodiment of the present invention under NFV frameworks includes：
201, first threshold is set in the field defined by NFV standards, the first threshold is that the virtual resource can
The number of extension；
In order to limit virtual resource unlimited extension, system performance is influenced, then needs to preset a threshold value to limit void
The number of quasi- resource expansion, it is preferred that can be in VDU (Virtualization Deployment Unit, the dummy section of VNF
Affix one's name to unit) defined in scale_out/in fields in setting extension (scaleout) maximum value, i.e. virtual resource can expand
The maximum times of exhibition.
202, judge whether the occupancy of all virtual resources is higher than preset second threshold within preset second round
Value, if so, executing 203；If it is not, not being extended to virtual resource then；
It before being extended virtual resource, needs first to judge whether all virtual resources are sufficient, judges virtual money
Whether sufficient method includes judging whether the occupancy of all virtual resources is higher than within preset second round to preset in source
Second threshold.Existing virtual cpu (Central Processing Unit, central processing unit) occupancy (two is detected as worked as
More than a) when being continued above 85% in 3 minutes, show that the high virtual resource of portfolio is insufficient at this time, needs to carry out one extension
(scale out)。
203, the virtual resource is extended according to preset rules；
NFV frameworks are to be handled by using general purpose hardware and virtualization technology to carry very multi-functional software, from
And the equipment cost of network costliness is reduced, network equipment function can be made to eliminate the reliance on by software and hardware decoupling and function modeling
In specialized hardware, resource fully can flexibly be shared, and realize the quick exploitation and deployment of new business, and be based on practical business demand
Carry out automatic deployment.When service traffics are big, virtual resource is insufficient, and such as physical resource is sufficient at this time, then is carried out to virtual resource
Extension improves system processing power.Such as extend new virtual cpu can according to each rule for generating 2 new virtual cpus into
Row extension (scale out).
204, the number of the virtual resource extension is counted；
Because in NFV environment, used is common hardware, and cost is relatively low, so under normal circumstances, physical resource
It is sufficient, it is possible to which that virtual resource is repeatedly extended.For example, the virtual cpu occupancy newly extended is still held in 3 minutes
Continue more than 85%, then continues to extend (scale out), count the number of extension.
205, when the number of the extension reaches preset first threshold, then stop expanding the virtual resource
Exhibition；
In order to ensure the overall performance of virtual network function, limited number of times first threshold is set in system, because virtually
The a large amount of data of real-time synchronization are needed between resource, if unconfined extension is carried out to virtual resource, then when concurrent many-one
Communication when, flow caused by instantaneous burst is larger, can influence the overall performance of virtual network function, expand so needing to limit
The number of exhibition is then no longer extended virtual resource when the number of extension reaches first threshold, avoids system in this way
Entirety is affected.For example, the virtual cpu occupancy newly extended is still continued above 85% in 3 minutes, then continue to expand
It opens up (scale out), just cannot apply extending new virtual cpu again after extending 5 times.
206, judge whether the occupancy of each virtual resource is less than preset third within the preset period 3 successively
Threshold value, if so, executing 207；If it is not, then executing 208；
When some virtual resource is idle state, then the virtual resource can be discharged, to ensure virtual network function
Performance, the method for judging whether there is the virtual resource free time includes judging the occupancy of each virtual resource preset successively
Whether it is less than preset third threshold value in three periods.Such as detection single virtual CPU usage is consistently less than 5% in 10 minutes
When, then it represents that the virtual resource unit is idle state.
207, the virtual resource of releasing idling；
Because the virtual resource of extension is more, then bigger to the influence of virtual network function, so when the virtual money of extension
When source is idle state, then the virtual resource of the free time can be discharged, improve the performance of virtual network function.For example, when being
In 4 virtual cpus newly expanded in system, detect that two of which virtual cpu is idle state, then by the two free time
CPU is discharged so that 2 virtual cpus not for idle state are left behind in system.
208, when the number of the extension reaches preset first threshold within the preset period 1 and does not provide virtually
When the free time of source, then the access of limit service；
When new business is without limitation access of virtual Internet resources, the overall performance of virtual network function can be also influenced, when
When just having reached first threshold within certain period to the number of virtual resource extension, then it represents that need at this time a large amount of virtual
Resource, if if being also idle state without virtual resource at this time, needing to limit new low priority traffice and being linked into system
In, to ensure the normal processing of high-priority service.For example, reaching out number of extension scale in 30 minutes 5 times and not having
Virtual cpu discharges, then limits the access of business, to realize flow control.
In the embodiment of the present invention, whether the occupancy by judging all virtual resources is high within preset second round
Determine whether virtual resource is insufficient in preset second threshold, in this way, second round and the can be arranged according to actual conditions
Two threshold values so that virtual network function obtains most reasonably utilizing；When there is the virtual resource free time, then the virtual money of releasing idling
Source, in this way, improving the performance of virtual network function.
In above-described embodiment, describe when there is the virtual resource free time, then the virtual resource of releasing idling, when the extension
Number reach preset first threshold within the preset period 1 and when without virtual resource free time, then limit service connects
Enter, in practical applications, after the virtual resource of releasing idling, time of the extension can also be reduced according to default rule
The access of number, limit service can be virtual resource described in the high service access of permission priority, the industry for preventing priority low
Business accesses the virtual resource, and the access of the number and specific limit service to reducing extension below is specifically described,
It please refers to shown in Fig. 3, another embodiment for carrying out the method for business flow control in the embodiment of the present invention under NFV frameworks includes：
301, first threshold is set in the field defined by NFV standards, the first threshold is that the virtual resource can
The number of extension；
In order to limit virtual resource unlimited extension, system performance is influenced, then needs to preset a threshold value to limit void
The number of quasi- resource expansion, it is preferred that can be in VDU (Virtualization Deployment Unit, the dummy section of VNF
Affix one's name to unit) defined in scale_out/in fields in setting extension (scale out) maximum value, i.e. virtual resource can expand
The maximum times of exhibition.
302, judge whether the occupancy of all virtual resources is higher than preset second threshold within preset second round
Value, if so, executing 203；If it is not, not being extended to virtual resource then；
It before being extended virtual resource, needs first to judge whether all virtual resources are sufficient, judges virtual money
Whether sufficient method includes judging whether the occupancy of all virtual resources is higher than within preset second round to preset in source
Second threshold.Existing virtual cpu (Central Processing Unit, central processing unit) occupancy (two is detected as worked as
More than a) when being continued above 85% in 3 minutes, show that the high virtual resource of portfolio is insufficient at this time, needs to carry out one extension
(scale out)。
302, the virtual resource is extended according to preset rules；
NFV frameworks are to be handled by using general purpose hardware and virtualization technology to carry very multi-functional software, from
And the equipment cost of network costliness is reduced, network equipment function can be made to eliminate the reliance on by software and hardware decoupling and function modeling
In specialized hardware, resource fully can flexibly be shared, and realize the quick exploitation and deployment of new business, and be based on practical business demand
Carry out automatic deployment.When service traffics are big, virtual resource is insufficient, and such as physical resource is sufficient at this time, then is carried out to virtual resource
Extension improves system processing power.Such as extend new virtual cpu can according to each rule for generating 2 new virtual cpus into
Row extension (scale out).
304, the number of the virtual resource extension is counted；
Because in NFV environment, used is common hardware, and cost is relatively low, so under normal circumstances, material resources
It is sufficient, it is possible to which that virtual resource is repeatedly extended.For example, the virtual cpu occupancy newly extended is still held in 3 minutes
Continue more than 85%, then continues to extend (scale out), count the number of extension.
304, when the number of the extension reaches preset first threshold, then no longer the virtual resource is expanded
Exhibition；
In order to ensure the overall performance of virtual network function, limited number of times first threshold is set in system, because virtually
The a large amount of data of real-time synchronization are needed between resource, if unconfined extension is carried out to virtual resource, then when concurrent many-one
Communication when, flow caused by instantaneous burst is larger, can influence the overall performance of virtual network function, expand so needing to limit
The number of exhibition is then no longer extended virtual resource when the number of extension reaches first threshold, avoids system in this way
Entirety is affected.For example, the virtual cpu occupancy newly extended is still continued above 85% in 3 minutes, then continue to expand
It opens up (scale out), just cannot apply extending new virtual cpu again after extending 5 times.
306, judge whether the occupancy of each virtual resource is less than preset third within the preset period 3 successively
Threshold value, if so, executing 307；If it is not, then executing 308；
When some virtual resource is idle state, then the virtual resource can be discharged, to ensure virtual network function
Performance, the method for judging whether there is the virtual resource free time includes judging the occupancy of each virtual resource preset successively
Whether it is less than preset third threshold value in three periods.Such as detection single virtual CPU usage is consistently less than 5% in 10 minutes
When, then it represents that the virtual resource unit is idle state.
307, the virtual resource of releasing idling；
Because the virtual resource of extension is more, and systematic entirety may be influenced by safeguarding excessive unnecessary virtual resource
Can, so when the virtual resource of extension is idle state, then the virtual resource of the free time can be discharged, improve virtual network
The performance of function.For example, when 4 virtual cpus newly expanded in system, detect that two of which virtual cpu is idle shape
State then discharges the two idle CPU so that 2 virtual cpus not for idle state are left behind in system.
308, the number of the extension is reduced according to default rule；
Because when being extended to virtual resource, it is extended according to default rule, is sky when there is virtual resource
After not busy state is released, then it represents that the virtual resource that can be extended does not reach preset maximum value, then can will extend
Number according to it is identical rule reduce so that system can be extended next time.For example, system is virtual firstly there are 2
CPU increases separately 2 virtual cpus, obtains 12 virtual cpus every time after carrying out 5 extensions, and statistics is expanded at this time
The number of (scale out) is 5, and after business is finished, it is idle state to have 4 virtual cpus, then discharges idle 4
A virtual cpu then only exists 8 virtual cpus in system, the corresponding number for reducing statistics extension 2 times, then statistics extension at this time
Number be 3 times, expression can also carry out 2 times extension (scale out).
309, when the number of the extension reaches preset first threshold within the preset period 1, then allow preferential
The high service access of grade, the service access for preventing priority low；
When new business is without limitation access of virtual Internet resources, the overall performance of virtual network function can be also influenced, when
When just having reached first threshold within certain period to the number of virtual resource extension, then it represents that need at this time a large amount of virtual
Resource then needs to limit in new service access to virtual resource, to ensure that virtual resource enables to accessed business energy
Enough it is normally carried out.For example, reaching out number of extension scale in 30 minutes 5 times, then the access of business is limited, from
And realize flow control, business has all been divided priority, when virtual resource is insufficient and can not extend again, then can connect
Enter the high business of priority, the low business of loss priority.
In the embodiment of the present invention, when the virtual resource of releasing idling, the number of the extension is reduced according to default rule,
Virtual network function can be then reasonably utilized in this way, improve service efficiency；When the number of the extension is preset
When reaching preset first threshold in one period, then virtual resource described in the service access that allows priority high prevents priority
Virtual resource described in low service access, the flow control carried out in this way to business, also achieves the Intelligent treatment to business.
It please refers to shown in Fig. 4, carries out one embodiment packet of the device of business flow control in the embodiment of the present invention under NFV frameworks
It includes：
Expanding element 401, for when virtual resource deficiency, then expanding the virtual resource according to preset rules
Exhibition；
NFV frameworks are to be handled by using general purpose hardware and virtualization technology to carry very multi-functional software, from
And the equipment cost of network costliness is reduced, network equipment function can be made to eliminate the reliance on by software and hardware decoupling and function modeling
In specialized hardware, resource fully can flexibly be shared, and realize the quick exploitation and deployment of new business, and be based on practical business demand
Carry out automatic deployment.When service traffics are big, virtual resource is insufficient, and such as physical resource is sufficient at this time, then is carried out to virtual resource
Extension, improves system processing power, and NFV frameworks can also be based on practical business and carry out elastic telescopic, i.e., expand virtual resource
Exhibition improves the performance of system with release.
Statistic unit 402, the number for counting the virtual resource extension；
Because in NFV environment, used is common hardware, and cost is relatively low, so under normal circumstances, physical resource
It is sufficient, it is possible to virtual resource is repeatedly extended, but because needing a large amount of data of real-time synchronization between virtual resource,
If carrying out unconfined extension to virtual resource, then when concurrent many-to-one communication, flow caused by instantaneous burst
It is larger, the overall performance of virtual network function can be influenced, so needing to limit the number extended.
Stop unit 403 then stops carrying out the virtual resource when the number of the extension reaches preset threshold value
Extension；
In order to ensure the overall performance of virtual network function, limited number of times first threshold is set in system, when extension
When number reaches first threshold, then no longer virtual resource is extended, thus will not instantaneously happen suddenly and generate larger flow.
Limiting unit 404 reaches preset first threshold for the number when the extension within the preset period 1
And when without the virtual resource free time, then the access of limit service；
When new business is without limitation access of virtual Internet resources, the overall performance of virtual network function can be also influenced, when
When just having reached first threshold within certain period to the number of virtual resource extension, then it represents that need at this time a large amount of virtual
If resource needs to limit in new service access to system if being also idle state without virtual resource at this time, to ensure
Virtual resource enables to accessed business that can be normally carried out.
An embodiment of the present invention provides a kind of methods that business flow control is carried out under NFV frameworks, for when service access to void
When quasi- resource, flow is controlled.Including：When virtual resource deficiency, then according to preset rules to the virtual resource into
Row extension counts the number of the virtual resource extension, when the number of the extension reaches preset first threshold, then no longer
The virtual resource is extended, when the number of the extension reach within the preset period 1 preset first threshold and
When there is no the virtual resource free time, then the access of limit service.In this way, when virtual resource deficiency, virtual resource is extended so that industry
Business can be normally carried out, when business continues to increase, by controlling virtual resource unlimited extension and limiting connecing for new business
Enter, to realize accurate flow control.
It should be noted that all schemes of apparatus of the present invention are applicable in all systems that can carry out real-time extension, some are
For system due to virtual machine performance problem, elastic telescopic required time is long, it is also possible to first start flow control and carry out elastic telescopic, this programme again
It is equally applicable, repeats no more below.
In above-described embodiment, describes when virtual resource deficiency, the virtual resource is extended, in practical application
In, further include judging whether virtual resource is sufficient before this；Before the number for counting the virtual resource extension, setting
First threshold can also be by being arranged in field that NFV standards define；It, then can be with releasing idling when there is the virtual resource free time
Virtual resource, below to judging whether virtual resource is sufficient, the device of the virtual resource of setting first threshold and releasing idling
It specifically describes, please refers to shown in Fig. 5, carry out another implementation of the device of business flow control in the embodiment of the present invention under NFV frameworks
Example include：
Setting unit 501, the word for before the number for counting the virtual resource extension, being defined by NFV standards
First threshold is set in section, and the first threshold is the expansible number of the virtual resource；
In order to limit virtual resource unlimited extension, system performance is influenced, then needs to preset a threshold value to limit void
The number of quasi- resource expansion, it is preferred that can be in VDU (Virtualization Deployment Unit, the dummy section of VNF
Affix one's name to unit) defined in scale_out/in fields in setting extension (scale out) maximum value, i.e. virtual resource can expand
The maximum times of exhibition.
First judging unit 502 is used for when the virtual resource deficiency, then according to preset rules to the virtual money
Before source is extended, judge whether virtual resource is sufficient；It is described to judge whether abundance specifically includes virtual resource：Judge all
The occupancy of virtual resource whether be higher than preset second threshold within preset second round, if so, indicating virtual money
Source is insufficient, if not, then it represents that virtual resource is sufficient；
It before being extended virtual resource, needs first to judge whether all virtual resources are sufficient, judges virtual money
Whether sufficient method includes judging whether the occupancy of all virtual resources is higher than within preset second round to preset in source
Second threshold.Existing virtual cpu (Central Processing Unit, central processing unit) occupancy (two is detected as worked as
More than a) when being continued above 85% in 3 minutes, show that the high virtual resource of portfolio is insufficient at this time, needs to carry out one extension
(scale out)。
Expanding element 503, for when virtual resource deficiency, then expanding the virtual resource according to preset rules
Exhibition；
NFV frameworks are to be handled by using general purpose hardware and virtualization technology to carry very multi-functional software, from
And the equipment cost of network costliness is reduced, network equipment function can be made to eliminate the reliance on by software and hardware decoupling and function modeling
In specialized hardware, resource fully can flexibly be shared, and realize the quick exploitation and deployment of new business, and be based on practical business demand
Carry out automatic deployment.When service traffics are big, virtual resource is insufficient, and such as physical resource is sufficient at this time, then is carried out to virtual resource
Extension improves system processing power.Such as extend new virtual cpu can according to each rule for generating 2 new virtual cpus into
Row extension (scale out).
Statistic unit 504, the number for counting the virtual resource extension；
Because in NFV environment, used is common hardware, and cost is relatively low, so under normal circumstances, physical resource
It is sufficient, it is possible to which that virtual resource is repeatedly extended.For example, the virtual cpu occupancy newly extended is still held in 3 minutes
Continue more than 85%, then continues to extend (scale out), count the number of extension.
Stop unit 505 then stops carrying out the virtual resource when the number of the extension reaches preset threshold value
Extension；
In order to ensure the overall performance of virtual network function, limited number of times first threshold is set in system, because virtually
The a large amount of data of real-time synchronization are needed between resource, if unconfined extension is carried out to virtual resource, then when concurrent many-one
Communication when, flow caused by instantaneous burst is larger, can influence the overall performance of virtual network function, expand so needing to limit
The number of exhibition is then no longer extended virtual resource when the number of extension reaches first threshold, avoids system in this way
Entirety is affected.For example, the virtual cpu occupancy newly extended is still continued above 85% in 3 minutes, then continue to expand
It opens up (scale out), just cannot apply extending new virtual cpu again after extending 5 times.
Second judgment unit 506, for when there is the virtual resource free time, then before the virtual resource of releasing idling, sentencing
It is disconnected whether to have virtual resource idle；It is described to judge whether there is the virtual resource free time and specifically include：Each virtual resource is judged successively
Occupancy whether be less than preset third threshold value within the preset period 3, if so, indicate that the virtual resource is idle,
If not, then it represents that the virtual resource is not idle；
When some virtual resource is idle state, then the virtual resource can be discharged, to ensure virtual network function
Performance, the method for judging whether there is the virtual resource free time includes judging the occupancy of each virtual resource preset successively
Whether it is less than preset third threshold value in three periods.Such as detection single virtual CPU usage is consistently less than 5% in 10 minutes
When, then it represents that the virtual resource unit is idle state.
Releasing unit 507, for when there is the virtual resource free time, then the virtual resource of releasing idling；
Because the virtual resource of extension is more, and systematic entirety may be influenced by safeguarding excessive unnecessary virtual resource
Can, so when the virtual resource of extension is idle state, then the virtual resource of the free time can be discharged, improve virtual network
The performance of function.For example, when in 4 virtual cpus newly expanded in system, detect that two of which virtual cpu is idle shape
State then discharges the two idle CPU so that 2 virtual cpus not for idle state are left behind in system.
Limiting unit 508 reaches preset first threshold for the number when the extension within the preset period 1
And when without the virtual resource free time, then the access of limit service；
When new business is without limitation access of virtual Internet resources, the overall performance of virtual network function can be also influenced, when
When just having reached first threshold within certain period to the number of virtual resource extension, then it represents that need at this time a large amount of virtual
Resource, if if being also idle state without virtual resource at this time, needing to limit new low priority traffice and being linked into system
In, to ensure the normal processing of high-priority service.For example, reaching out number of extension scale in 30 minutes 5 times and not having
Virtual cpu discharges, then limits the access of business, to realize flow control.
In the embodiment of the present invention, whether the occupancy by judging all virtual resources is high within preset second round
Determine whether virtual resource is insufficient in preset second threshold, in this way, second round and the can be arranged according to actual conditions
Two threshold values so that virtual network function obtains most reasonably utilizing；When there is the virtual resource free time, then the virtual money of releasing idling
Source, in this way, improving the performance of virtual network function.
In above-described embodiment, describe when there is the virtual resource free time, then the virtual resource of releasing idling, when the extension
Number reach preset first threshold within the preset period 1 and when without virtual resource free time, then limit service connects
Enter, in practical applications, after the virtual resource of releasing idling, time of the extension can also be reduced according to default rule
The access of number, limit service can be virtual resource described in the high service access of permission priority, the industry for preventing priority low
Business accesses the virtual resource, and the access of the number and specific limit service to reducing extension below is specifically described,
It please refers to shown in Fig. 6, another embodiment for carrying out the device of business flow control in the embodiment of the present invention under NFV frameworks includes：
Setting unit 601, the word for before the number for counting the virtual resource extension, being defined by NFV standards
First threshold is set in section, and the first threshold is the expansible number of the virtual resource；
In order to limit virtual resource unlimited extension, system performance is influenced, then needs to preset a threshold value to limit void
The number of quasi- resource expansion, it is preferred that can be in VDU (Virtualization Deployment Unit, the dummy section of VNF
Affix one's name to unit) defined in scale_out/in fields in setting extension (scale out) maximum value, i.e. virtual resource can expand
The maximum times of exhibition.
First judging unit 602 is used for when the virtual resource deficiency, then according to preset rules to the virtual money
Before source is extended, judge whether virtual resource is sufficient；It is described to judge whether abundance specifically includes virtual resource：Judge all
The occupancy of virtual resource whether be higher than preset second threshold within preset second round, if so, indicating virtual money
Source is insufficient, if not, then it represents that virtual resource is sufficient；
It before being extended virtual resource, needs first to judge whether all virtual resources are sufficient, judges virtual money
Whether sufficient method includes judging whether the occupancy of all virtual resources is higher than within preset second round to preset in source
Second threshold.Existing virtual cpu (Central Processing Unit, central processing unit) occupancy (two is detected as worked as
More than a) when being continued above 85% in 3 minutes, show that the high virtual resource of portfolio is insufficient at this time, needs to carry out one extension
(scale out)。
Expanding element 603, for when virtual resource deficiency, then expanding the virtual resource according to preset rules
Exhibition；
NFV frameworks are to be handled by using general purpose hardware and virtualization technology to carry very multi-functional software, from
And the equipment cost of network costliness is reduced, network equipment function can be made to eliminate the reliance on by software and hardware decoupling and function modeling
In specialized hardware, resource fully can flexibly be shared, and realize the quick exploitation and deployment of new business, and be based on practical business demand
Carry out automatic deployment.When service traffics are big, virtual resource is insufficient, and such as physical resource is sufficient at this time, then is carried out to virtual resource
Extension improves system processing power.Such as extend new virtual cpu can according to each rule for generating 2 new virtual cpus into
Row extension (scale out).
Statistic unit 604, the number for counting the virtual resource extension；
Because in NFV environment, used is common hardware, and cost is relatively low, so under normal circumstances, physical resource
It is sufficient, it is possible to which that virtual resource is repeatedly extended.For example, the virtual cpu occupancy newly extended is still held in 3 minutes
Continue more than 85%, then continues to extend (scale out), count the number of extension.
Stop unit 605 then stops carrying out the virtual resource when the number of the extension reaches preset threshold value
Extension；
In order to ensure the overall performance of virtual network function, limited number of times first threshold is set in system, because virtually
The a large amount of data of real-time synchronization are needed between resource, if unconfined extension is carried out to virtual resource, then when concurrent many-one
Communication when, flow caused by instantaneous burst is larger, can influence the overall performance of virtual network function, expand so needing to limit
The number of exhibition is then no longer extended virtual resource when the number of extension reaches first threshold, avoids system in this way
Entirety is affected.For example, the virtual cpu occupancy newly extended is still continued above 85% in 3 minutes, then continue to expand
It opens up (scale out), just cannot apply extending new virtual cpu again after extending 5 times.
Second judgment unit 506, for when there is the virtual resource free time, then before the virtual resource of releasing idling, sentencing
It is disconnected whether to have virtual resource idle；It is described to judge whether there is the virtual resource free time and specifically include：Each virtual resource is judged successively
Occupancy whether be less than preset third threshold value within the preset period 3, if so, indicate that the virtual resource is idle,
If not, then it represents that the virtual resource is not idle；
When some virtual resource is idle state, then the virtual resource can be discharged, to ensure virtual network function
Performance, the method for judging whether there is the virtual resource free time includes judging the occupancy of each virtual resource preset successively
Whether it is less than preset third threshold value in three periods.Such as detection single virtual CPU usage is consistently less than 5% in 10 minutes
When, then it represents that the virtual resource unit is idle state.
Releasing unit 607, for when there is the virtual resource free time, then the virtual resource of releasing idling；
Because the virtual resource of extension is more, and systematic entirety may be influenced by safeguarding excessive unnecessary virtual resource
Can, so when the virtual resource of extension is idle state, then the virtual resource of the free time can be discharged, improve virtual network
The performance of function.For example, when in 4 virtual cpus newly expanded in system, detect that two of which virtual cpu is idle shape
State then discharges the two idle CPU so that 2 virtual cpus not for idle state are left behind in system.
Subtrahend unit 608, for after the virtual resource of releasing idling, the extension to be reduced according to default rule
Number；
Because when being extended to virtual resource, it is extended according to default rule, is sky when there is virtual resource
After not busy state is released, then it represents that the virtual resource that can be extended does not reach preset maximum value, then can will extend
Number according to it is identical rule reduce so that system can be extended next time.For example, system is virtual firstly there are 2
CPU increases separately 2 virtual cpus, obtains 12 virtual cpus every time after carrying out 5 extensions, and statistics is expanded at this time
The number of (scale out) is 5, and after business is finished, it is idle state to have 4 virtual cpus, then discharges idle 4
A virtual cpu then only exists 8 virtual cpus in system, the corresponding number for reducing statistics extension 2 times, then statistics extension at this time
Number be 3 times, expression can also carry out 2 times extension (scale out).
Limiting unit 609 includes limitation module 6091, is reached within the preset period 1 for the number when the extension
When to preset first threshold, then the service access for allowing priority high, the service access for preventing priority low；
When new business is without limitation access of virtual Internet resources, the overall performance of virtual network function can be also influenced, when
When just having reached first threshold within certain period to the number of virtual resource extension, then it represents that need at this time a large amount of virtual
Resource then needs to limit in new service access to virtual resource, to ensure that virtual resource enables to accessed business energy
Enough it is normally carried out.For example, reaching out number of extension scale in 30 minutes 5 times, then the access of business is limited, from
And realize flow control, business has all been divided priority, when virtual resource is insufficient and can not extend again, then can connect
Enter the high business of priority, the low business of loss priority.
In the embodiment of the present invention, when the virtual resource of releasing idling, the number of the extension is reduced according to default rule,
Virtual network function can be then reasonably utilized in this way, improve service efficiency；When the number of the extension is preset
When reaching preset first threshold in one period, then virtual resource described in the service access that allows priority high prevents priority
Virtual resource described in low service access, the flow control carried out in this way to business, also achieves the Intelligent treatment to business.
It is exemplified below.In a specific example, virtual resource CPU, expansible number first threshold setting
It it is 5 times, the preset rules of extension are every time to be set as 30 minutes 2 virtual cpu resources of extension, period 1, and second threshold is set
It is set to 85%, second round is set as 3 minutes, and third threshold value is set as 5%, and the period 3 is set as 10 minutes, when virtual money
When the deficiency of source, when new business needs access, a kind of scene of data-flow-control method in server system under NFV frameworks is asked
With reference to shown in Fig. 7, one embodiment packet of the concrete application scene of business flow control is carried out in the embodiment of the present invention under NFV frameworks
It includes：
In the VDU of VNF (Network Function Virtualization, network function virtualization)
It is arranged in scale_out/in fields defined in (Virtualized Network Function, virtual network function)
Sacle out=5, i.e. maximum can extend 5 times, then apply for that 5 new virtual resources carry out business processing；VNFM
(Virtualized Network Function Management, virtual network function management) detects that existing virtual cpu accounts for
When being continued above 85% in 3 minutes with rate (two or more), show that the high virtual resource of portfolio is insufficient at this time, carries out primary
Scale out apply 2 new virtual cpus for handling the business newly accessed；If the virtual cpu occupancy newly applied is still
It is so continued above 85% in 3 minutes, then continues scale out, cannot apply again after scale out 5 times new virtual
CPU。
When portfolio become smaller virtual resource do not use when, VNFM has detected single virtual CPU usage at 10 minutes
When being inside consistently less than 5%, virtual cpu is discharged, a collection of (2) is often discharged and cuts out number of a scale, release number is not
More than the virtual cpu resource newly applied；
VNFM counts virtual resource out number of scale, reaches in 30 minutes 5 times, then to NFVO (Network
Function Virtualization Orchestrator, network function virtualize composer) send resource overload need to flow
The message of control.NFVO receives the service access system for allowing priority high after flow control message, the service access for preventing priority low
System improves the practicability of system to realize accurate flow control.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Stating embodiment, invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
Modification or replacement, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (12)
1. a kind of method for carrying out business flow control under NFV frameworks, which is characterized in that including：
Judge whether virtual resource is sufficient；Wherein, described to judge whether abundance specifically includes virtual resource：Judge all virtual
Whether the occupancy of resource is higher than preset second threshold within preset second round, if so, indicate that virtual resource is insufficient,
If not, then it represents that virtual resource is sufficient；
When virtual resource deficiency, then the virtual resource is extended according to preset rules；
Count the number of the virtual resource extension；
When the number of the extension reaches preset first threshold, then stop being extended the virtual resource；
When the number of the extension reaches preset first threshold within the preset period 1 and does not have the virtual resource free time,
The then access of limit service.
2. according to the method described in claim 1, it is characterized in that, before the number for counting virtual resource extension, institute
The method of stating further includes：
First threshold is set in the field defined by NFV standards, and the first threshold is expansible time of the virtual resource
Number.
3. method according to claim 1 or 2, which is characterized in that the method further includes：
After stopping being extended virtual resource, when there is the virtual resource free time, then the virtual resource of releasing idling.
4. according to the method described in claim 3, it is characterized in that, when there is the virtual resource free time, then the void of releasing idling
Before quasi- resource, the method further includes：Judge whether there is the virtual resource free time；
It is described to judge whether there is the virtual resource free time and specifically include：
Judge whether the occupancy of each virtual resource is less than preset third threshold value within the preset period 3 successively, if
It is, then it represents that the virtual resource is idle, if not, then it represents that the virtual resource is not idle.
5. according to the method described in claim 3, it is characterized in that, after the virtual resource of releasing idling, the method is also
Including：The number of the extension is reduced according to default rule.
6. method according to claim 1 or claim 2, which is characterized in that the access of limit service specifically includes：
The service access for allowing priority high, the service access for preventing priority low.
7. carrying out the device of business flow control under a kind of NFV frameworks, which is characterized in that including：
First judging unit, for when virtual resource deficiency, being then extended to the virtual resource according to preset rules
Before, judge whether virtual resource is sufficient；It is described to judge whether abundance specifically includes virtual resource：Judge all virtual resources
Occupancy whether be higher than preset second threshold within preset second round, if so, indicate that virtual resource is insufficient, if
It is no, then it represents that virtual resource is sufficient；
Expanding element, for when virtual resource deficiency, being then extended to the virtual resource according to preset rules；
Statistic unit, the number for counting the virtual resource extension；
Stop unit then stops being extended the virtual resource when the number of the extension reaches preset threshold value；
Limiting unit reaches preset first threshold and no void for the number when the extension within the preset period 1
Quasi- resource space idle, the then access of limit service.
8. device according to claim 7, which is characterized in that described device further includes：
Setting unit, for before the number for counting the virtual resource extension, being arranged in the field defined by NFV standards
First threshold, the first threshold are the expansible number of the virtual resource.
9. device according to claim 7 or 8, which is characterized in that described device further includes：
Releasing unit, for after stopping being extended virtual resource, when there is the virtual resource free time, then releasing idling
Virtual resource.
10. device according to claim 9, which is characterized in that described device further includes：
Second judgment unit, for when there is the virtual resource free time, then before the virtual resource of releasing idling, judging whether there is
Virtual resource is idle；It is described to judge whether there is the virtual resource free time and specifically include：The occupancy of each virtual resource is judged successively
Whether it is less than preset third threshold value within the preset period 3, if so, indicating that the virtual resource is idle, if it is not, then
Indicate that the virtual resource is not idle.
11. device according to claim 9, which is characterized in that described device further includes：
Subtrahend unit, for after the virtual resource of releasing idling, the number of the extension to be reduced according to default rule.
12. device according to claim 7 or 8, which is characterized in that the limiting unit includes：
Limit module, the service access for allowing priority high, the service access for preventing priority low.
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| CN105873114B (en) | 2015-01-21 | 2020-12-11 | 中兴通讯股份有限公司 | Method for monitoring virtual network function performance and corresponding system |
| CN106302068A (en) * | 2015-05-11 | 2017-01-04 | 中兴通讯股份有限公司 | The management method of the virtual resource of virtual network function VNF and device |
| WO2017011938A1 (en) * | 2015-07-17 | 2017-01-26 | 华为技术有限公司 | Virtual network function capacity expansion method and apparatus |
| CN105162716A (en) * | 2015-07-28 | 2015-12-16 | 上海华为技术有限公司 | Flow control method and apparatus under NFV configuration |
| JP6636142B2 (en) * | 2015-09-30 | 2020-01-29 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Scale-out association method and apparatus and system |
| CN108141378B (en) * | 2015-10-19 | 2021-09-24 | 诺基亚通信公司 | Dormant VDU in VNFD |
| CN106953776A (en) * | 2016-01-07 | 2017-07-14 | 中兴通讯股份有限公司 | Performance threshold monitor processing method and device |
| CN107026802B (en) * | 2016-01-30 | 2020-12-15 | 华为技术有限公司 | Resource management method and equipment |
| KR20180110095A (en) | 2016-02-08 | 2018-10-08 | 노키아 솔루션스 앤드 네트웍스 오와이 | Controlling resource placement of network virtualization scenarios |
| CN107154951B (en) * | 2016-03-02 | 2020-10-02 | 南京中兴软件有限责任公司 | Virtual network application function unit (VNF) extension management method and device |
| CN105847172B (en) * | 2016-03-30 | 2019-03-19 | 华为技术有限公司 | Job flow control method and device |
| WO2017214932A1 (en) * | 2016-06-16 | 2017-12-21 | 华为技术有限公司 | Network-slice resource management method and apparatus |
| CN108429631B (en) * | 2017-02-15 | 2021-01-15 | 华为技术有限公司 | Method and device for instantiating network service |
| CN108632161B (en) * | 2017-03-20 | 2022-04-12 | 中兴通讯股份有限公司 | Virtual network function and method for realizing service processing |
| CN107153570B (en) * | 2017-04-11 | 2020-08-25 | 华为技术有限公司 | Method and device for controlling number of virtual machines |
| EP3704575A4 (en) * | 2017-10-31 | 2021-08-25 | Nokia Solutions and Networks Oy | A method, apparatus and system for real-time virtual network function orchestration |
| CN110636137B (en) * | 2019-10-14 | 2022-06-17 | 河海大学常州校区 | Cluster-based NFV service chain optimization method in ocean view monitoring network |
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