CN106685784A

CN106685784A - Virtualized network function VNF instance scaling method and VNF instance scaling device

Info

Publication number: CN106685784A
Application number: CN201510749932.0A
Authority: CN
Inventors: 祝伟宏
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-11-05
Filing date: 2015-11-05
Publication date: 2017-05-17
Also published as: WO2017076078A1

Abstract

The invention provides a virtualized network function VNF instance scaling method and a VNF instance scaling device. The method comprises the following steps: an element management system EMS determines a VNF instance needing scaling and an expected deployment flavor to which the VNF instance needs to be scaled; the EMS sends the identity of the VNF instance and scaling information determined according to the expected deployment flavor to a virtualized network function manager VNFM, wherein the identity of the VNF instance and the scaling information are used to instruct the VNFM to scale the VNF instance according to the scaling information. Through the method and the device, the problem that VNF scaling cannot be realized through EMS's trigger in the related technology is solved, VNF instance scaling is realized through EMS's trigger, and the trigger speed of VNF instance scaling is improved.

Description

The telescopic method and device of virtualization network function VNF examples

Technical field

The present invention relates to the communications field, in particular to a kind of telescopic method of virtualization network function VNF examples And device.

Background technology

In the management domain of wireless telecommunication system, and NMS (Network Management System, referred to as NMS) it is referred to as with the interface between Element management system (Element Management System, referred to as EMS) Northbound interface (Itf-N).EMS mainly complete International Telecommunication Union (International Telecommunication Union, Referred to as ITU) telecommunication management network (Telecommunications Management Network, referred to as TMN) In NE management layer (Element Management Layer, referred to as EML) function, that is, complete one or more The management function of mobile communication equipment, the EMS being typically different between equipment supplier cannot be general.NMS is mainly completed NML (Network Management Layer, referred to as NML) function in ITU TMN, is responsible for one The management of all network elements in individual managed network.For the feelings that there is multiple equipment supplier in managed network (referred to as subnet) Condition, can reach the purpose for managing whole subnet by respective EMS management.

At present, in order to improve the motility of communication network, management cost is reduced, is initiated to propose network function by operator Virtualization (Network Functions Virtualization, referred to as NFV) concept, in the situation using NFV technologies Under, original physical NE equipment is by virtualizing network function (Virtualized Network Function, referred to as VNF) Replace so that network function is decoupled with particular hardware, as shown in figure 1, wherein, Fig. 1 is the network work(in correlation technique Frame of reference composition can be virtualized, VNF virtualizes architecture (Network Functions with the network function of bottom Virtualization Infrastructure, referred to as NFVI) isolation.Management for VNF, by EMS to VNF Example carries out traditional maintenance management function, and the life cycle management function of VNF then passes through VNF manager VNFM Complete.The Virtual base framework of bottom by Virtual base architecture management device (Virtualised Infrastructure Manager, Referred to as VIM) it is managed.And specific Network, then typically completed by one or more VNF examples. Management to Network, then carried out by NFV composers NFVO.

After realizing network function virtualization, from the point of view of application, when setting up a Network example, Mr. is needed The example of the VNF needed into Network, then a Network example is constituted by one or more VNF examples, lead to Cross Network example to provide Network.And a benefit after network function virtualization is, with the use of network The change of situation, the resource that can be used with the VNF examples of dynamic adjustment network consisting business, i.e., enter to VNF examples Row is flexible, to provide the utilization rate of resource, and reaches the purpose of energy-conservation.Wherein, the flexible of VNF examples includes dilatation (scale Out or scale up) and capacity reducing (scale in or scale down).Dilatation includes two kinds of situations：Extension (scale out)： I.e. when VNF can be by multiple virtualizations deployment unit (Virtualization Deployment Unit, referred to as VDU) When composition, increase the VDU examples of composition VNF examples, to increase the ability of VNF examples；Amplify (scale up)： Increase the configuration of the virtual machine (Virtual Machine, referred to as VM) of operation VNF examples, such as increase centre Reason device (Central Processing Unit, referred to as CPU), internal memory, network port etc., to increase VNF examples Ability.Equally, capacity reducing also includes two kinds of situations：Shrink (scale in)：I.e. when VNF can be by multiple VDU groups Into when, reduce composition VNF examples VDU examples, to reduce the ability of VNF examples；Reduce (scale down)： The configuration of the virtual machine (VM) of operation VNF examples is reduced, CPU, internal memory, the network port is such as reduced, with Reduce the ability of VNF examples；At present, for flexible (extension and the contraction) that how to carry out VNF examples has preliminary Research, and give VNF examples flexible overall procedure.But current research, it is not clear and definite how to utilize EMS Stretching for triggering VNF examples, i.e., initiated when VNF examples stretch it would be desirable to provide assorted without clear and definite EMS by VNFM The parameter of sample telling how VNFM carries out the flexible of VNF examples, also without clearly to the ginseng of VNFM offers Number is how, therefore, cannot realize realizing the flexible scheme of VNF examples by EMS triggerings in correlation technique.

For present in correlation technique the flexible problem that realize VNF examples cannot be triggered by EMS, at present not yet Propose effective solution.

The content of the invention

The invention provides the telescopic method and device of a kind of virtualization network function VNF examples, at least to solve correlation The flexible problem of VNF examples cannot be realized present in technology by EMS triggerings.

According to an aspect of the invention, there is provided a kind of telescopic method of virtualization network function VNF examples, including： Element management system EMS determines needs to carry out flexible VNF examples and the VNF examples need the expectation stretched Deployment specification；The EMS expects the warp information that deployment specification determines by the mark of the VNF examples and according to described Virtualization network function manager VNFM is sent to, wherein, the mark of the VNF examples and the warp information are used Flexible process is carried out to the VNF examples according to the warp information in the instruction VNFM.

Alternatively, the EMS determines and needs to carry out flexible VNF examples to include：The EMS is according to for collecting The performance data of individual or multiple VNF examples determines the place for carrying out Business Processing of one or more of VNF examples Rationality energy；The EMS determines that process performance is higher than second less than the VNF examples or process performance of first performance threshold value The VNF examples of performance threshold are to need to carry out the flexible VNF examples；And/or, the EMS determines described VNF examples need the expectation stretched deployment specification to include：The EMS carries out as needed the flexible VNF The ability that the default deployment specification and the expectation VNF examples of example reach determines the expectation deployment specification.

Alternatively, the EMS obtains one of in the following way the default deployment specification of the VNF examples：It is described EMS obtains the default deployment specification from the VNF examples；The EMS is by the privately owned interface with data base The default deployment specification is obtained, wherein, the information of the default deployment specification that is stored with the data base；It is described EMS obtains the default deployment specification from the VNFM；The EMS is obtained from NMS NMS The default deployment specification.

Alternatively, the EMS determines that needing to carry out flexible VNF examples and the VNF examples needs what is stretched Expect that disposing specification includes：EMS receiving network managings system NMS send for indicating to the VNF realities Example carries out the first scale commands of flexible process, wherein, the VNF examples are carried in first scale commands Mark and the mark for expecting deployment specification；The EMS determines the VNF examples according to first scale commands Expect deployment specification with described；Or, EMS receiving network managings system NMS send for indicating to described VNF examples carry out the second scale commands of flexible process, wherein, carry the VNF in second scale commands The mark of example and the VNF examples need the information of the ability stretched；The EMS is according to the described first flexible life Order determines the VNF examples, also, the EMS needs the ability stretched and described according to the VNF examples The default deployment specification of VNF examples determines the expectation deployment specification.

Alternatively, the warp information includes one below：The identification information for expecting deployment specification；According to the phase Hope the retractable type information and flexible class information of the actual deployment specification determination of deployment specification and the VNF examples.

According to a further aspect in the invention, there is provided it is a kind of virtualization network function VNF examples telescopic method, including： NMS NMS determines that needs carry out flexible VNF examples；The NMS to Element management system EMS sends out Send for indicating to carry out the VNF examples the flexible scale commands for processing；Wherein, the scale commands are used to indicate The expectation that the EMS needs to stretch by the mark of the VNF examples and by the EMS according to the VNF examples The warp information that deployment specification determines is sent to virtualization network function manager VNFM, the mark of the VNF examples It is used to indicate that the VNFM carries out the VNF examples flexible process according to the warp information with the warp information.

Alternatively, the NMS is sent for indicating to needing to carry out the flexible VNF examples to enter to the EMS The flexible scale commands for processing of row include：The NMS to the EMS sends the first scale commands, wherein, institute State the mark and expectation deployment specification that the VNF examples are carried in a scale commands；Or, the NMS The second scale commands are sent to the EMS, wherein, the mark of the VNF examples is carried in second scale commands Know the ability stretched with VNF examples needs, wherein, the EMS needs flexible according to the VNF examples To ability and the VNF examples default deployment specification determine it is described expect deployment specification.

According to a further aspect in the invention, there is provided it is a kind of virtualization network function VNF examples telescopic method, including： Virtualization network function manager VNFM receive from Element management system EMS need carry out flexible VNF realities The mark and warp information of example, wherein, the warp information is that the EMS needs to stretch to arrive according to the VNF examples Expectation deployment specification determine warp information；The VNFM is carried out according to the warp information to the VNF examples It is flexible to process.

According to a further aspect in the invention, there is provided a kind of retractor device of virtualization network function VNF examples, it is described Device is applied in Element management system EMS, including：First determining module, needs to carry out flexible VNF for determining Example and the VNF examples need the expectation deployment specification stretched；First sending module, for by the VNF realities The mark of example and the warp information determined according to the expectation deployment specification are sent to virtualization network function manager VNFM, wherein, the mark and the warp information of the VNF examples are used to indicate that the VNFM stretches according to described Contracting information carries out flexible process to the VNF examples.

Alternatively, when it is determined that needing to carry out flexible VNF examples, first determining module includes：First determines Unit, for determining one or more of VNF examples according to the performance data of one or more the VNF examples collected The process performance for carrying out Business Processing；Second determining unit, for determining that process performance is less than first performance threshold value VNF examples or process performance be to need to carry out the flexible VNF higher than the VNF examples of second performance threshold value Example；And/or, when it is determined that the VNF examples need the expectation deployment specification stretched, first determining module Including：3rd determining unit, for carrying out default deployment specification and the expectation of the flexible VNF examples as needed The ability that the VNF examples reach determines the expectation deployment specification.

Alternatively, the default deployment specification of the VNF examples is obtained one of in the following way：From the VNF examples It is middle to obtain the default deployment specification；By obtaining the default deployment specification with the privately owned interface of data base, wherein, institute State the information of the default deployment specification that is stored with data base；The default deployment specification is obtained from the VNFM； The default deployment specification is obtained from NMS NMS.

Alternatively, first determining module includes：First receiving unit, sends out for receiving network managing system NMS The first scale commands processed for indicating to carry out stretching to the VNF examples for sending, wherein, the described first flexible life The mark and the mark for expecting deployment specification of the VNF examples are carried in order；4th determining unit, for root Determine the VNF examples and expectation deployment specification according to first scale commands；Or, the second receiving unit, The second of flexible process is carried out to the VNF examples for instruction for the transmission of receiving network managing system NMS to stretch Order, wherein, the mark and the VNF examples of the VNF examples are carried in second scale commands to be needed to stretch The information of the ability being reduced to；5th determining unit, for determining the VNF examples according to first scale commands, Also, the EMS needs the default deployment rule of the ability and VNF examples for stretching according to the VNF examples Lattice determine the expectation deployment specification.

According to a further aspect in the invention, there is provided a kind of retractor device of virtualization network function VNF examples, it is described Device is applied in NMS NMS, including：Second determining module, for determining that needs carry out flexible VNF Example；Second sending module, for sending for indicating to stretch the VNF examples to Element management system EMS The scale commands that contracting is processed；Wherein, the scale commands be used to indicate the EMS by the mark of the VNF examples and The warp information that the expectation deployment specification stretched determines is needed to be sent to virtually according to the VNF examples by the EMS Change network function manager VNFM, the mark and the warp information of the VNF examples are used to indicate the VNFM Flexible process is carried out to the VNF examples according to the warp information.

Alternatively, second sending module includes：First transmitting element, stretches for sending first to the EMS Order, wherein, the mark and expectation deployment specification of the VNF examples are carried in a scale commands；Or Person, the second transmitting element, for sending the second scale commands to the EMS, wherein, in second scale commands Carrying the mark and the VNF examples of the VNF examples needs the ability stretched, wherein, the EMS roots The default deployment specification of the ability and VNF examples for stretching is needed to determine the expectation deployment according to the VNF examples Specification.

According to a further aspect in the invention, there is provided a kind of retractor device of virtualization network function VNF examples, it is described Device is applied to virtualize in network function manager VNFM, including：Receiver module, for receiving from network element pipe The mark and warp information of the VNF examples for needing to carry out flexible of reason system EMS, wherein, the warp information is institute State the warp information of the expectation deployment specification determination that EMS needs to stretch according to the VNF examples；Processing module, uses In flexible process is carried out to the VNF examples according to the warp information.

By the present invention, being determined using Element management system EMS needs to carry out flexible VNF examples and the VNF Example needs the expectation deployment specification stretched；The EMS is by the mark of the VNF examples and according to the expectation portion The warp information that administration's specification determines is sent to virtualization network function manager VNFM, wherein, the VNF examples Mark and the warp information are used to indicate that the VNFM stretches the VNF examples according to the warp information Process.Solve the problems, such as to realize that VNF's is flexible by EMS triggerings present in correlation technique, and then reach The flexible of VNF examples is realized by EMS triggerings, the effect of the flexible triggering speed of VNF examples is improved.

Description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is the network function virtualization frame of reference composition in correlation technique；

Fig. 2 is the flow chart of the telescopic method of the first virtualization network function VNF example according to embodiments of the present invention；

Fig. 3 is the flow chart of the telescopic method of second virtualization network function VNF example according to embodiments of the present invention；

Fig. 4 is the flow chart of the telescopic method of the third virtualization network function VNF example according to embodiments of the present invention；

Fig. 5 is the flexible overall flow figure of VNF examples according to embodiments of the present invention；

Fig. 6 is the structural frames of the retractor device of the first virtualization network function VNF example according to embodiments of the present invention Figure；

Fig. 7 be the first virtualization network function VNF example according to embodiments of the present invention retractor device in it is first true The structured flowchart one of cover half block 62；

Fig. 8 be the first virtualization network function VNF example according to embodiments of the present invention retractor device in it is first true The structured flowchart two of cover half block 62；

Fig. 9 is the structural frames of the retractor device of second virtualization network function VNF example according to embodiments of the present invention Figure；

Figure 10 be second virtualization network function VNF examples according to embodiments of the present invention retractor device in second Send the structured flowchart of module 94；

Figure 11 is the structural frames of the retractor device of the third virtualization network function VNF example according to embodiments of the present invention Figure.

Specific embodiment

Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that in the feelings not conflicted Under condition, the feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that description and claims of this specification and term " first ", " second " in above-mentioned accompanying drawing Etc. being object for distinguishing similar, without for describing specific order or precedence.

A kind of telescopic method of virtualization network function VNF examples is provided in the present embodiment, and Fig. 2 is according to this The flow chart of the telescopic method of the first virtualization network function VNF example of bright embodiment, as shown in Fig. 2 the stream Journey comprises the steps：

Step S202, Element management system EMS determines to be needed to carry out flexible VNF examples and the VNF example needs The expectation deployment specification stretched；

Step S204, above-mentioned EMS disposes the flexible letter that specification determines by the mark of VNF examples and according to above-mentioned expectation Breath is sent to virtualization network function manager VNFM, wherein, the mark and warp information of the VNF examples are used to refer to Show that VNFM carries out flexible process to VNF examples according to above-mentioned warp information.

By above-mentioned steps, EMS after it is determined that needing to carry out flexible VNF examples, by the mark of the VNF examples The warp information that the expectation deployment specification stretched determines is needed to be sent to for performing VNF realities with according to the VNF examples The flexible VNFM for processing of example, it is achieved thereby that triggered by EMS and realize VNF examples flexible process flow process, Specify that EMS is sent to the particular content included in the parameter of VNFM, solving cannot present in correlation technique The flexible problem of VNF is realized by EMS triggerings, and then has been reached stretching for VNF examples is realized by EMS triggerings Contracting, improves the effect of the flexible triggering speed of VNF examples.

In an optional embodiment, above-mentioned EMS determines to be needed to carry out flexible VNF examples to include：EMS roots Determine being used for into industry of said one or multiple VNF examples according to the performance data of one or more the VNF examples collected The process performance that business is processed；EMS determines that process performance is high less than the VNF examples or process performance of first performance threshold value It is to need to carry out flexible VNF examples in the VNF examples of second performance threshold value；In another optional embodiment, Above-mentioned EMS determines that VNF examples need the expectation stretched deployment specification to include：EMS carries out as needed flexible The ability that the default deployment specification and expectation VNF examples of VNF examples reach determines above-mentioned expectation deployment specification.Wherein, The default deployment specification of VNF examples here can be set in advance in the corresponding VNFD of VNF examples. The deployment specification of multiple different stages can be typically preset in VNFD.

EMS can have various acquisition modes when the default deployment specification of VNF examples is obtained, optional real at one In applying example, above-mentioned EMS can one of in the following way obtain the default deployment specification of VNF examples：EMS is from VNF Above-mentioned default deployment specification is obtained in example；EMS by obtaining above-mentioned default deployment specification with the privately owned interface of data base, Wherein, the information of the default deployment specification that is stored with the data base；EMS obtains above-mentioned default portion from VNFM Administration's specification；EMS obtains above-mentioned default deployment specification from NMS NMS.Wherein, when EMS is by private When having interface to obtain above-mentioned default deployment specification, EMS can be provided with VNF examples by same manufacturer.Certainly, The mode of the default deployment specification of above-mentioned acquisition is only several examples, can also in other way obtain default deployment rule Lattice, it is numerous to list herein.

In above-mentioned each embodiment, the flexible process of VNF examples has EMS actively to trigger and realize, VNF realities The flexible process of example can also be triggered and realized by other network elements, as will be described below：

In an optional embodiment, above-mentioned EMS determines to be needed to carry out flexible VNF examples and VNF examples need The expectation deployment specification stretched includes：EMS receiving network managings system NMS send for indicate to above-mentioned VNF examples carry out the first scale commands of flexible process, wherein, carry VNF examples in first scale commands The mark of specification is disposed in mark and above-mentioned expectation；Above-mentioned EMS determines VNF examples and above-mentioned phase according to the first scale commands Hope deployment specification；In another optional embodiment, what above-mentioned EMS receiving network managings system NMS sent is used for The second scale commands that flexible process is carried out to VNF examples are indicated, wherein, carry VNF in second scale commands The mark of example and VNF examples need the information of the ability stretched；Above-mentioned EMS is according in the determination of the first scale commands VNF examples are stated, also, above-mentioned EMS needs the ability stretched default with the VNF examples according to VNF examples Deployment specification determines above-mentioned expectation deployment specification.

Wherein, the first scale commands of above-mentioned EMS receptions, the second scale commands can also carry out free operation support System (Operation-Support System, referred to as OSS) or business support system (Business Support System, referred to as BSS).

In an optional embodiment, above-mentioned warp information can include one below：Above-mentioned expectation deployment specification Identification information, retractable type information that the actual deployment specification for disposing specification and VNF examples according to above-mentioned expectation determines and Flexible class information.When warp information is to expect the identification information of deployment specification, VNFM can be according to the expectation deployment The mark of specification determines expects deployment specification, such that it is able to carry out flexible process to VNF examples, by its capacity reducing or expansion Hold to expectation deployment specification；When warp information is retractable type information and flexible class information, VNFM can be according to this Retractable type information determines that being carried out capacity reducing is processed, or dilatation is processed, and VNFM can determine according to flexible class information Capacity reducing or the degree of dilatation, and then realize the flexible process to VNF examples.

Fig. 3 is the flow chart of the telescopic method of second virtualization network function VNF example according to embodiments of the present invention, As shown in figure 3, the flow process comprises the steps：

Step S302, NMS NMS determines that needs carry out flexible VNF examples；

Step S304, above-mentioned NMS to Element management system EMS is sent for indicating to stretch above-mentioned VNF examples The scale commands that contracting is processed；Wherein, the scale commands are used to indicate EMS by the mark of VNF examples and by EMS roots The warp information that the expectation deployment specification stretched determines is needed to be sent to virtualization network function manager according to VNF examples VNFM, the mark and warp information of the VNF examples are used to indicate VNFM according to above-mentioned warp information to VNF realities Example carries out flexible process.

By above-mentioned steps, NMS can indicate that EMS holds after the VNF examples for needing to carry out flexible process are determined The flexible process of row VNF examples, EMS can according to the instruction of NMS to VNFM send VNF examples mark and The warp information of the expectation deployment specification determination for needing to stretch according to VNF examples, it is achieved thereby that being realized by EMS The flow process of the flexible process of VNF examples, specify that EMS is sent to the particular content included in the parameter of VNFM, Solve the problems, such as present in correlation technique to realize that VNF's is flexible by EMS triggerings, and then reached and pass through The flexible of VNF examples is realized in EMS triggerings, improves the effect of the flexible triggering speed of VNF examples.

In an optional embodiment, above-mentioned NMS to EMS is sent for indicating to needing to carry out flexible VNF Example carries out the scale commands of flexible process to be included：NMS to EMS sends the first scale commands, wherein, this first is stretched The mark of VNF examples is carried in contracting order and deployment specification is expected；Or, NMS sends second and stretches to EMS Order, wherein, the mark and VNF examples of VNF examples are carried in second scale commands needs the ability stretched, Wherein, the ability and the default deployment specification of VNF examples that the EMS stretches according to VNF examples needs determines above-mentioned Expect to dispose specification.

Wherein, when it is determined that needing to carry out the VNF examples of flexible process, can be according to monitoring parameter (monitoring_parameter) determining, the monitoring parameter is used for description to be carried out to which parameter in VNF examples Monitoring, one or more parameters therein are determined for the deployment specification of the VNF examples, show also the VNF The ability that example can be provided.The example of these parameters is included but is not limited to：Call number per second (calls-per second, Cps), every second flow (flows per-second), number of users (number-of-subscribers) etc..

VNF examples have been all referred in above-mentioned expectation deployment specification (deployment flavor), default deployment specification Deployment specification, the deployment specification is illustrated below：A general VNF example has the deployment rule of multiple VNF Lattice, each disposes the specification representation resource that VNF examples are possessed under this specification, such as includes how many VDU, often The configuration (such as CPU, internal memory, network parameter) of individual VDU, can provide many so as to also illustrate the VNF types The disposal ability of few rank.The deployment specification (deployment flavor) of VNF is using 1 in above-mentioned monitoring parameter Or multiple specification key indexs (flavour_key) of disposing as it are representing different deployment specifications.Such as when with every When second call number (calls-per second, cps) is as key index, can be with the difference of calls-per second Value representing the different deployment specifications of VNF, such as deployment specification can be expressed as 10,000 callings per second, per second 50,000 Individual calling, 100,000 callings per second etc.；Each deployment specification is also comprising a mark (Identification, referred to as ID).

Fig. 4 is the flow chart of the telescopic method of the third virtualization network function VNF example according to embodiments of the present invention, As shown in figure 4, the flow process comprises the steps：

Step S402, virtualize network function manager VNFM receptions is carried out from the needs of Element management system EMS The mark and warp information of flexible VNF examples, wherein, the warp information is that EMS needs to stretch according to VNF examples The warp information that the expectation deployment specification being reduced to determines；

Step S404, above-mentioned VNFM carries out flexible process to VNF examples according to warp information.

By above-mentioned steps, VNFM can receive the mark of the VNF examples from EMS and according to the VNF realities Example needs the warp information that the expectation deployment specification stretched determines, it is achieved thereby that VNF is triggered and realized by EMS The flow process of the flexible process of example, specify that EMS is sent to the particular content included in the parameter of VNFM, solve The flexible problem of VNF cannot be realized by EMS triggerings present in correlation technique, and then reached by EMS The flexible of VNF examples is realized in triggering, improves the effect of the flexible triggering speed of VNF examples.

Fig. 5 is the flexible overall flow figure of VNF examples according to embodiments of the present invention, as shown in figure 5, the flow process bag Include following steps：

S502, EMS obtain the information of corresponding VNF deployment specification (that is, actual deployment specification) of VNF examples；

S504, EMS judge whether VNF examples need to stretch；If desired stretch, then go to step S506, otherwise originally Flow process terminates；

S506, EMS determine which deployment specification (i.e. it is desired to disposing specification) VNF examples should stretch to；

S508, EMS send the flexible request of VNF examples to VNFM, and the parameter included in the request can include： Need the unique mark of flexible VNF examples, it is determined that VNF examples need the deployment specification stretched；

S510, VNFM are received after the flexible request of VNF examples, and to corresponding VNF examples scaling operation is performed；

S512, EMS receive the VNF examples that VNFM returns and stretch the message for completing.

Wherein, in above-mentioned steps S502, the method that EMS obtains the specification information of VNF is including but not limited to following several The mode of kind：

By VNF case-based systems；

When EMS and VNF are that same manufacturer provides, EMS can obtain VNF specification informations by privately owned interface；

Obtain from VNFM；

Obtain from NMS；

Can be according to VNF examples when EMS judges whether VNF examples need flexible in above-mentioned steps S504 Performance data judges whether VNF examples need to stretch；

In above-mentioned steps S506, EMS determine VNF examples should stretch to which deployment specification when, can be basis The corresponding VNF of VNF examples disposes the information of specification and wishes the ability determination that VNF examples reach；

In above-mentioned steps S510, VNFM can include to the concrete steps that corresponding VNF examples perform scaling operation：

VNFM to NFVO sends the flexible request of approval VNF examples；

NFVO checks whether existing resource can meet the VNF examples of application and stretch from VIM, and carries out related resource Reservation (wherein, subscribe to related resource operation be optional)；

VIM is returned to NFVO and is checked and subscribe result.If resource meets demand and subscribes successfully, turn next step, Otherwise this flow process terminates；

NFVO to VNFM returns the flexible response message of approval VNF examples；

VNFM is to the corresponding resource of VIM request distribution；

VIM distributes after corresponding resource, returns to VNFM and confirms message.

In an optional embodiment, the flexible of VNF examples can also be initiated by NMS by EMS, in the reality In applying example, may include steps of：

NMS issues VNF example scale commands to EMS, and command parameter includes the unique mark and VNF of VNF examples Example needs the deployment specification stretched；

EMS sends the flexible request of VNF examples to VNFM, and the parameter included in request includes：Need what is stretched The unique mark of VNF, VNF examples need the deployment specification stretched；

VNFM is received after the flexible request of VNF examples, and to corresponding VNF examples scaling operation is performed；

VNFM complete VNF examples it is flexible after, return the flexible message for completing to EMS.

In another optional embodiment, stretched by the VNF examples that EMS is initiated by NMS, can also be passed through Following steps are realized：

NMS issues VNF example scale commands to EMS, and the command parameter in the scale commands includes VNF examples Unique mark and VNF examples need the ability stretched；

EMS is received after scale commands, and according to VNF examples therein the ability parameter that stretches, and VNF are needed The corresponding VNF of example disposes specification information, determines that VNF examples need the deployment specification stretched；

EMS sends the flexible request of VNF examples to VNFM, and the parameter included in request includes：Need what is stretched The unique mark of VNF, it is determined that VNF examples need the deployment specification stretched；

Specifically, in above-mentioned steps, the ability for needing to reach after stretching is carried out according to VNF examples, determines the VNF realities Which deployment specification is example should stretch to, refer to the value according to " VNF flexible after the ability to be reached " parameter, such as calls Per second (CPS)=3K, compare VNF deployment specification (deployment in the corresponding VNFD of the VNF examples Flavor) define, taking can meet the minimum gauge of the Capability Requirement, such as VNF in the corresponding VNFD of the VNF examples It is 1K, 5K, 10K that the available ability of deployment specification of support is respectively CPS, then the deployment specification for determining here is The corresponding specifications of CPS=5K.

In an optional embodiment, the above-mentioned VNF examples telescoping instruction initiated by NMS can also be by operation Support system (Operation-Support System, referred to as OSS), business support system (Business Support System, Referred to as BSS) initiate.

With reference to specific embodiment, the present invention will be described, and in the examples below, deployment specification can be advised referred to as Lattice.

Embodiment 1：

In this embodiment, there is provided one kind virtualization network function telescopic method, step is as follows：

EMS obtains the corresponding VNF specification informations (that is, the information of the default deployment specification of VNF examples) of VNF examples；

EMS judges whether VNF examples need to stretch；If desired stretch, then turn next step, otherwise this flow process is introduced；

EMS determines which specification VNF examples should stretch to；

EMS sends the flexible request of VNF examples to VNFM, and the parameter included in request includes：Need what is stretched The unique mark of VNF, it is determined that VNF examples need the specification stretched；

EMS receives the VNF examples that VNFM returns and stretches the message for completing.

Above-mentioned VNFM includes to the concrete steps that corresponding VNF examples perform scaling operation：

VNFM to NFVO sends the flexible request of approval VNF examples；

NFVO checks whether existing resource can meet the VNF examples of application and stretch from VIM, and carries out related resource Reservation (reservation for carrying out related resource is an optional scheme)；

NFVO to VNFM returns the flexible response message of approval VNF examples；

VNFM is to the corresponding resource of VIM request distribution；

Embodiment 2：

Another kind of virtualization network function telescopic method is provided in the present embodiment, and step is as follows：

EMS obtains the corresponding VNF specification informations of VNF examples by privately owned interface from system database；

EMS judges whether VNF examples need to stretch according to the performance data and default performance threshold of VNF；If needing Stretch, then turn next step, otherwise this flow process is introduced；

EMS is according to the corresponding VNF specification informations of VNF examples and wishes that the ability that VNF examples reach determines VNF Which specification example should stretch to；

Embodiment 3：

The method that the virtualization network function provided in the present embodiment stretches, comprises the steps：

EMS obtains the corresponding VNF specification informations of VNF examples by privately owned interface from data base；

EMS receives the instruction of " carrying out VNF to stretch " from NMS, and the parameter of instruction includes the " VNF to be stretched The mark of example " (vnfr_id), " VNF flexible after the ability to be reached " (deployment_flavour-flavour_key) Parameter.

EMS is according to " VNF flexible after the ability to be reached " (deployment_flavour-flavour_key) parameter determination The VNF examples carry out the ability for needing to reach after stretching, such as VNF examples are a vPGW (virtual PDN Gateway-Packet Data Network Gateway) when, " VNF flexible after the ability to be reached " here is just That call per second (calls per second) is 10K, i.e., it is maximum to support 10,000 callings per second.Then according to institute State the corresponding VNF rule of VNF examples that VNF examples carry out needing the ability for reaching and above-mentioned 1st step to obtain after stretching Lattice information determine VNF examples it is flexible after corresponding specification ID of the specification to be reached；

EMS receives the VNF examples that VNFM returns and stretches the message for completing；

EMS sends VNF examples and stretches the message that completes to NMS.

Embodiment 4：

The method that virtualization network function in the present embodiment stretches, comprises the steps：

EMS obtains the corresponding VNF specification informations of VNF examples from NMS；

EMS receives the instruction of " carrying out VNF to stretch " from NMS, and the parameter of instruction includes the " VNF to be stretched The mark of example " (vnfr_id), " VNF flexible after corresponding specification ID of the specification to be reached " (deployment_flavour- Flavour_key) parameter；

EMS sends the flexible request of VNF examples to VNFM, and the parameter included in request includes：Need what is stretched The unique mark of VNF, VNF examples need corresponding specification ID of specification stretched；

EMS sends VNF examples and stretches the message that completes to NMS.

Embodiment 5：

EMS is from the corresponding VNF specification informations of VNF case-based system VNF examples；

EMS receives the instruction of " carrying out VNF to stretch " from OSS, and the parameter of instruction includes the " VNF to be stretched The mark of example " (vnfr_id), " VNF flexible after corresponding specification ID of the specification to be reached " (deployment_flavour- Flavour_key) parameter.

EMS sends VNF examples and stretches the message that completes to OSS.

It should be noted that above-mentioned OSS is sent to the information carried in the instruction of EMS " can also stretch The mark of VNF examples " (vnfr_id), " VNF flexible after the ability to be reached " (deployment_flavour- Flavour_key) parameter, concrete operations are referred to embodiment 3.

Embodiment 6：

In this embodiment, assuming known to EMS or can obtain the current deployment specification of VNF examples, and VNF Example it is corresponding it is default deployment specification be sort from small to large by ability in the case of, there is provided one kind virtualization network work( Flexible method, step is as follows：

EMS obtains the corresponding VNF specification informations (that is, the information of the default deployment specification of VNF examples) of VNF examples The actual deployment specification current with VNF examples；

Specification is disposed in the expectation that EMS determines VNF examples and should stretch to which specification, i.e. VNF examples；

EMS compares the expectation deployment specification and current actual deployment specification of VNF examples, so that it is determined that VNF examples Need flexible parameter：1) if it is desire to deployment specification more with a high standard than actual deployment (i.e. corresponding ability compares actual deployment The corresponding ability of specification is big), it is determined that the expanding-contracting action to be performed is dilatation, is otherwise exactly capacity reducing；2) calculate and expect The absolute value of the difference of deployment specification and the corresponding rank of actual deployment specification, as dilatation or the rank of capacity reducing.

EMS sends the flexible request of VNF examples to VNFM, and the parameter included in request includes：Need to perform and stretch VNF examples unique mark, VNF examples need perform expanding-contracting action type (dilatation or capacity reducing), dilatation or The rank of capacity reducing；

Through the above description of the embodiments, those skilled in the art can be understood that according to above-described embodiment Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing There is the part that technology contributes to embody in the form of software product, the computer software product is stored in one In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can Being mobile phone, computer, server, or network equipment etc.) perform method described in each embodiment of the invention.

A kind of retractor device of virtualization network function VNF examples is additionally provided in the present embodiment, and the device is used for real Existing above-described embodiment and preferred implementation, had carried out repeating no more for explanation.As used below, term " mould Block " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples is preferably Realized with software, but hardware, or the realization of the combination of software and hardware is also may and to be contemplated.

Fig. 6 is the structural frames of the retractor device of the first virtualization network function VNF example according to embodiments of the present invention Figure, the device can apply to Element management system EMS, as shown in fig. 6, including the first determining module 62 and first Sending module 64, illustrates below to the device.

First determining module 62, needs to carry out what flexible VNF examples and VNF examples needs stretched for determining Expect to dispose specification；First sending module 64, is connected to above-mentioned first determining module 62, for by above-mentioned VNF examples Mark and according to above-mentioned expectation dispose specification determine warp information be sent to virtualization network function manager VNFM, Wherein, the mark and warp information of the VNF examples is used to indicate VNFM according to above-mentioned warp information to VNF examples Carry out flexible process.

Fig. 7 be the first virtualization network function VNF example according to embodiments of the present invention retractor device in it is first true The structured flowchart one of cover half block 62, illustrates with reference to Fig. 7 to first determining module 62.

When it is determined that needing to carry out flexible VNF examples, first determining module 62 includes：First determining unit 72, For according to collect one or more VNF examples performance data determine one or more VNF examples for carrying out The process performance of Business Processing；Second determining unit 74, is connected to above-mentioned first determining unit 72, for determination process Performance is needs higher than the VNF examples of second performance threshold value less than the VNF examples or process performance of first performance threshold value Carry out flexible above-mentioned VNF examples；And/or,

When it is determined that above-mentioned VNF examples need the expectation deployment specification stretched, first determining module 62 includes：The Three determining units 76, for carrying out the default deployment specification of flexible VNF examples as needed and expecting the VNF examples The ability for reaching determines above-mentioned expectation deployment specification.

In an optional embodiment, EMS can one of in the following way obtain the default deployment rule of VNF examples Lattice：Default deployment specification is obtained from above-mentioned VNF examples；By obtaining above-mentioned default portion with the privately owned interface of data base Administration's specification, wherein, the information of the default deployment specification that is stored with the data base；Obtain above-mentioned pre- from above-mentioned VNFM If deployment specification；Above-mentioned default deployment specification is obtained from NMS NMS.

Fig. 8 be the first virtualization network function VNF example according to embodiments of the present invention retractor device in it is first true The structured flowchart two of cover half block 62, as shown in figure 8, first determining module 62 includes the first receiving unit 82 and the Four determining units 84, or, first determining module 62 includes the second receiving unit 86 and the 5th determining unit 88, First determining module 62 is illustrated below.

First receiving unit 82, is carried out for instruction for what receiving network managing system NMS sent to VNF examples Flexible the first scale commands for processing, wherein, mark and the expectation portion of VNF examples are carried in first scale commands The mark of administration's specification；4th determining unit 84, is connected to above-mentioned first receiving unit 82, for stretching according to above-mentioned first Contracting order determines VNF examples and above-mentioned expectation deployment specification；

Second receiving unit 86, for the transmission of receiving network managing system NMS for instruction to above-mentioned VNF examples The second scale commands of flexible process are carried out, wherein, the mark of VNF examples is carried in second scale commands and is somebody's turn to do VNF examples need the information of the ability stretched；5th determining unit 88, is connected to above-mentioned second receiving unit 86, For determining VNF examples according to above-mentioned first scale commands, also, the EMS needs to stretch according to above-mentioned VNF examples The ability being reduced to and the default deployment specification of VNF examples determine above-mentioned expectation deployment specification.

In an optional embodiment, above-mentioned warp information includes one below：The mark of specification is disposed in above-mentioned expectation Information；The retractable type information of the actual deployment specification determination of specification and VNF examples is disposed according to above-mentioned expectation and is stretched Class information.

Fig. 9 is the structural frames of the retractor device of second virtualization network function VNF example according to embodiments of the present invention Figure, the device can apply in NMS NMS, as shown in figure 9, the device includes the second determining module 92 and second sending module 94, the device is illustrated below.

Second determining module 92, for determining that needs carry out flexible VNF examples；Second sending module 94, is connected to The second determining module 92 is stated, for sending for indicating to carry out VNF examples at flexible place to Element management system EMS The scale commands of reason；Wherein, the scale commands be used for indicate EMS by the mark of VNF examples and by EMS according to VNF Example needs the warp information that the expectation deployment specification stretched determines to be sent to virtualization network function manager VNFM, The mark and warp information of the VNF examples is used to indicate that VNFM stretches VNF examples according to above-mentioned warp information Contracting is processed.

Figure 10 be second virtualization network function VNF examples according to embodiments of the present invention retractor device in second Send the structured flowchart of module 94, as shown in Figure 10, second sending module 94 include the first transmitting element 102 or Second transmitting element 104, illustrates below to second sending module 94.

First transmitting element 102, for sending the first scale commands to EMS, wherein, carry in a scale commands There are the mark and above-mentioned expectation deployment specification of VNF examples；

Second transmitting element 104, for sending the second scale commands to above-mentioned EMS, wherein, second scale commands In carry the mark and VNF examples of VNF examples and need the ability stretched, wherein, the EMS is according to VNF realities Example needs the default deployment specification of the ability and VNF examples for stretching to determine above-mentioned expectation deployment specification.

Figure 11 is the structural frames of the retractor device of the third virtualization network function VNF example according to embodiments of the present invention Figure, the device can apply to virtualize in network function manager VNFM, and as shown in figure 11, the device includes connecing Module 112 and processing module 114 are received, the device is illustrated below：

Receiver module 112, for receiving the mark of the VNF examples for needing to carry out flexible from Element management system EMS Know and warp information, wherein, the warp information is that EMS needs the expectation deployment specification stretched true according to VNF examples Fixed warp information；Processing module 114, is connected to above-mentioned receiver module 112, for according to above-mentioned warp information to VNF Example carries out flexible process.

It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module distinguishes position In multiple processors.

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can To be arranged to store the program code for performing following steps：

S11, Element management system EMS determine to be needed to carry out flexible VNF examples and VNF examples needs stretch and arrive Expectation deployment specification；

S12, above-mentioned EMS dispose the warp information transmission that specification determines by the mark of VNF examples and according to above-mentioned expectation Virtualization network function manager VNFM is given, wherein, the mark and warp information of the VNF examples are used to indicate VNFM Flexible process is carried out to VNF examples according to above-mentioned warp information.

Alternatively, storage medium is also configured to store the program code for performing following steps：

S21, NMS NMS determines that needs carry out flexible VNF examples；

S22, above-mentioned NMS to Element management system EMS is sent for indicating to carry out above-mentioned VNF examples at flexible place The scale commands of reason；Wherein, the scale commands are used to indicate EMS by the mark of VNF examples and by above-mentioned EMS roots The warp information that the expectation deployment specification stretched determines is needed to be sent to virtualization network function manager according to VNF examples VNFM, the mark and warp information of the VNF examples are used to indicate VNFM according to above-mentioned warp information to VNF realities Example carries out flexible process.

S31, virtualizes network function manager VNFM receptions and is stretched from the needs of Element management system EMS VNF examples mark and warp information, wherein, the warp information is that EMS needs to stretch and arrive according to VNF examples Expectation deployment specification determine warp information；

S32, above-mentioned VNFM carry out flexible process to VNF examples according to warp information.

Alternatively, in the present embodiment, above-mentioned storage medium can be including but not limited to：USB flash disk, read only memory (Read-Only Memory, referred to as ROM), random access memory (RandomAccess Memory, referred to as For RAM), portable hard drive, magnetic disc or CD etc. are various can be with the medium of store program codes.

Alternatively, in the present embodiment, processor is according to the program-code execution step S11-S12 stored in storage medium.

Alternatively, in the present embodiment, processor is according to the program-code execution step S21-S22 stored in storage medium.

Alternatively, in the present embodiment, processor is according to the program-code execution step S31-S32 stored in storage medium.

Alternatively, the specific example in the present embodiment may be referred to showing described in above-described embodiment and optional embodiment Example, the present embodiment will not be described here.

VNF specification informations are first obtained by EMS by what is proposed in various embodiments of the present invention, is stretched VNF is initiated The specification that VNF examples will stretch directly is provided to VNFM during instruction, VNFM is after instruction is received to corresponding The method that VNF examples carry out scaling operation, it is achieved thereby that how efficiently to initiate between clear and definite EMS and VNFM The target of VNF example scaling operations.

Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Realizing, they can be concentrated on single computing device computing device, or be distributed in multiple computing devices and constituted Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to by they Storage is performed in the storage device by computing device, and in some cases, can be held with the order being different from herein The shown or described step of row, or they are fabricated to respectively each integrated circuit modules, or will be many in them Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware Combine with software.

The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the technology of this area For personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made it is any Modification, equivalent, improvement etc., should be included within the scope of the present invention.

Claims

1. it is a kind of virtualization network function VNF examples telescopic method, it is characterised in that include：

Element management system EMS determines that needing to carry out flexible VNF examples and the VNF examples needs to stretch to arrive Expectation deployment specification；

The EMS sends out by the mark of the VNF examples and according to the warp information for expecting that deployment specification determines Virtualization network function manager VNFM is given, wherein, the mark of the VNF examples and the warp information are used Flexible process is carried out to the VNF examples according to the warp information in the instruction VNFM.

2. method according to claim 1, it is characterised in that

The EMS determines to be needed to carry out flexible VNF examples to include：The EMS is according to or many for collecting The performance data of individual VNF examples determines the process for carrying out Business Processing of one or more of VNF examples Performance；The EMS determines VNF example or process performance of the process performance less than first performance threshold value higher than the The VNF examples of two performance threshold are to need to carry out the flexible VNF examples；And/or,

The EMS determines that the VNF examples need the expectation stretched deployment specification to include：The EMS according to Need the default deployment specification of the VNF examples for carrying out flexible and expect that the ability that the VNF examples reach is true The fixed expectation deployment specification.

3. method according to claim 2, it is characterised in that the EMS obtains described one of in the following way The default deployment specification of VNF examples：

The EMS obtains the default deployment specification from the VNF examples；

The EMS by obtaining the default deployment specification with the privately owned interface of data base, wherein, the data The information of the default deployment specification that is stored with storehouse；

The EMS obtains the default deployment specification from the VNFM；

The EMS obtains the default deployment specification from NMS NMS.

4. method according to claim 1, it is characterised in that the EMS determines to be needed to carry out flexible VNF realities Example and the VNF examples need the expectation stretched deployment specification to include：

What EMS receiving network managings system NMS sent carries out flexible place to the VNF examples for instruction First scale commands of reason, wherein, the mark of the VNF examples and described is carried in first scale commands Expect the mark for disposing specification；The EMS determines VNF examples and described according to first scale commands Expect to dispose specification；Or,

What EMS receiving network managings system NMS sent carries out flexible place to the VNF examples for instruction Second scale commands of reason, wherein, the mark of the VNF examples and described is carried in second scale commands VNF examples need the information of the ability stretched；The EMS determines the VNF according to first scale commands Example, also, the EMS needs the pre- of the ability stretched and the VNF examples according to the VNF examples If deployment specification determines the expectation deployment specification.

5. method according to claim 1, it is characterised in that the warp information includes one below：

The identification information for expecting deployment specification；

According to the retractable type information of the actual deployment specification determination for expecting deployment specification and the VNF examples With flexible class information.

6. it is a kind of virtualization network function VNF examples telescopic method, it is characterised in that include：

NMS NMS determines that needs carry out flexible VNF examples；

The NMS to Element management system EMS is sent for indicating to carry out the VNF examples flexible process Scale commands；

Wherein, the scale commands are used to indicate the EMS by the mark of the VNF examples and by the EMS The warp information that the expectation deployment specification stretched determines is needed to be sent to virtualization network according to the VNF examples Functional manager VNFM, the mark and the warp information of the VNF examples be used to indicating the VNFM according to The warp information carries out flexible process to the VNF examples.

7. method according to claim 6, it is characterised in that the NMS sends right for indicating to the EMS Need to carry out the flexible VNF examples and carry out the scale commands of flexible process to include：

The NMS to the EMS sends the first scale commands, wherein, carry in a scale commands State the mark and expectation deployment specification of VNF examples；Or,

The NMS to the EMS sends the second scale commands, wherein, carry in second scale commands The mark of the VNF examples and the VNF examples need the ability stretched, wherein, the EMS is according to institute Stating VNF examples needs the default deployment specification of the ability and VNF examples for stretching to determine the expectation deployment Specification.

8. method according to claim 6, it is characterised in that the warp information includes one below：

The identification information for expecting deployment specification；

9. it is a kind of virtualization network function VNF examples telescopic method, it is characterised in that include：

Virtualization network function manager VNFM receive from Element management system EMS need carry out it is flexible The mark and warp information of VNF examples, wherein, the warp information is the EMS according to the VNF examples The warp information that the expectation deployment specification that needs stretch determines；

The VNFM carries out flexible process to the VNF examples according to the warp information.

10. method according to claim 9, it is characterised in that the warp information includes one below：

The identification information for expecting deployment specification；

11. a kind of retractor devices of virtualization network function VNF examples, it is characterised in that be applied to Element management system EMS In, including：

First determining module, for determine need to carry out flexible VNF examples and the VNF examples need it is flexible The expectation deployment specification for arriving；

First sending module, for expecting stretching for deployment specification determination by the mark of the VNF examples and according to described Contracting information is sent to virtualization network function manager VNFM, wherein, the mark of the VNF examples and described stretch Contracting information is used to indicate that the VNFM carries out the VNF examples flexible process according to the warp information.

12. devices according to claim 11, it is characterised in that

When it is determined that needing to carry out flexible VNF examples, first determining module includes：First determining unit, For determining one or more of VNF examples according to the performance data of one or more the VNF examples collected For carrying out the process performance of Business Processing；Second determining unit, for determining that process performance is less than first performance threshold The VNF examples of value or process performance higher than the VNF examples of second performance threshold value be need to carry out it is flexible described VNF examples；And/or,

When it is determined that the VNF examples need the expectation deployment specification stretched, first determining module includes： 3rd determining unit, for carrying out the default deployment specification of the flexible VNF examples as needed and expecting described The ability that VNF examples reach determines the expectation deployment specification.

13. devices according to claim 11, it is characterised in that obtain the VNF examples one of in the following way Default deployment specification：

The default deployment specification is obtained from the VNF examples；

By obtaining the default deployment specification with the privately owned interface of data base, wherein, it is stored with the data base The information of the default deployment specification；

The default deployment specification is obtained from the VNFM；

The default deployment specification is obtained from NMS NMS.

14. devices according to claim 11, it is characterised in that first determining module includes：

First receiving unit, for the transmission of receiving network managing system NMS for instruction to the VNF examples The first scale commands of flexible process are carried out, wherein, the VNF examples are carried in first scale commands Mark and the mark for expecting deployment specification；4th determining unit, for being determined according to first scale commands The VNF examples and expectation deployment specification；Or,

Second receiving unit, for the transmission of receiving network managing system NMS for instruction to the VNF examples The second scale commands of flexible process are carried out, wherein, the VNF examples are carried in second scale commands Mark and the VNF examples need the information of the ability stretched；5th determining unit, for according to described first Scale commands determine the VNF examples, also, the energy that the EMS needs to stretch according to the VNF examples The default deployment specification of power and the VNF examples determines the expectation deployment specification.

15. devices according to claim 11, it is characterised in that the warp information includes one below：

The identification information for expecting deployment specification；

16. a kind of retractor devices of virtualization network function VNF examples, it is characterised in that be applied to NMS NMS In, including：

Second determining module, for determining that needs carry out flexible VNF examples；

Second sending module, for sending for indicating to carry out the VNF examples to Element management system EMS The flexible scale commands for processing；

17. devices according to claim 16, it is characterised in that second sending module includes：

First transmitting element, for sending the first scale commands to the EMS, wherein, a scale commands In carry the VNF examples mark and the expectation deployment specification；Or,

Second transmitting element, for sending the second scale commands to the EMS, wherein, the described second flexible life The mark and the VNF examples of the VNF examples are carried in order needs the ability stretched, wherein, it is described EMS needs the default deployment specification of the ability and VNF examples for stretching to determine institute according to the VNF examples State expectation deployment specification.

18. devices according to claim 16, it is characterised in that the warp information includes one below：

The identification information for expecting deployment specification；

19. a kind of retractor devices of virtualization network function VNF examples, it is characterised in that be applied to virtualize network function pipe In reason device VNFM, including：

Receiver module, for receiving the mark of the VNF examples for needing to carry out flexible from Element management system EMS Know and warp information, wherein, the warp information EMS needs to stretch to arrive according to the VNF examples Expect to dispose the warp information that specification determines；

Processing module, for flexible process to be carried out to the VNF examples according to the warp information.

20. devices according to claim 19, it is characterised in that the warp information includes one below：

The identification information for expecting deployment specification；