CN106209402B

CN106209402B - A kind of telescopic method and equipment of virtual network function

Info

Publication number: CN106209402B
Application number: CN201510218479.0A
Authority: CN
Inventors: 顾翀; 柴晓前; 贾江涛
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-04-30
Filing date: 2015-04-30
Publication date: 2019-10-22
Anticipated expiration: 2035-04-30
Also published as: CN106209402A

Abstract

The invention discloses a kind of telescopic method of virtual network function and equipment, comprising: when completing the scaling operation to the virtual resource of VNF in resource layer, obtains the business state information of VNF；If it is determined that when the business state information of the VNF obtained belongs to the business state information of stateful type, inquire the operating status of VNF, and the operating status of the VNF inquired is carried and is sent to Service Control Unit in VNF resource change message, VNF resource change message is used to indicate Service Control Unit according to the operating status of the VNF carried in the change type and VNF resource change message of VNF resource change message, adjusts the business datum run on VNF.When needing to execute scaling operation to VNF, the VNF of the business state information of stateful type is belonged to for business state information, synchronously completes the migration operation for operating in business datum on the VNF, the continuity for operating in that business executes on the VNF is effectively ensured.

Description

A kind of telescopic method and equipment of virtual network function

Technical field

The present invention relates to computer science and technology field more particularly to a kind of telescopic method equipment of virtual network function.

Background technique

Network function virtualization (English: Network Function Virtualization；Abbreviation: NFV) technology can be with It is simply interpreted as from current dedicated platform migrating the function of each network element used in telecommunication network to general On X86COTS server.Each network element used in telecommunication network is transformed into independent application by NFV technology, it can be with Flexible deployment passes through soft on the unified platform that the other equipment such as measured server, storage and interchanger construct Decoupling between computer hardware, so that each application can quickly increase virtual resource to realize the mesh of Quick Extended power system capacity , or virtual resource can be reduced quickly to realize the purpose of pinch system capacity, greatly promote the elasticity of network.

The basis of NFV technology includes cloud computing technology and virtualization technology.General COTS calculating/storage/network etc. is hard Part equipment can be decomposed into a variety of virtual resources by virtualization technology, so that upper layer is various using by virtualizing skill Art may be implemented using the decoupling between hardware, so that virtual resource feed speed greatly increases；By cloud computing technology, The elastic telescopic of application may be implemented, realize that virtual resource matches with traffic load, not only improve the utilization of virtual resource Efficiency, and improve the speed of response of system.

The system architecture of NFV technical definition can be divided into three layers from vertical look up: infrastructure layer, virtual net network layers and fortune Seek supporting layer；Two domains can be divided into from horizontal look up: business network domain and management layout domain.

Wherein, infrastructure layer (English: NFV Infrastructure；Abbreviation: NFVI), from the angle of cloud computing technology It sees, belongs to a resource pool.NFVI be mapped to physical basis equipment (such as: it is multiple dispersion deployment data centers), pass through height Fast communication network connects.NFVI needs to be converted to the physical resources such as calculating/storage/exchange by virtualization technology virtual The resource pools such as calculating/storage/exchange.

Virtual net network layers, corresponding each telecommunication service network, each physical NE at present are mapped as a Virtual NE VNF (English: Virtual Network Function).Resource needed for VNF needs to be decomposed into virtual calculating/storage/exchange money Source is carried by NFVI, the interface between VNF using signaling interface (such as: 3GPP (English: 3rd Generation Partnership Project)+ITU-T (English: ITU Telecommunication Standardization Sector)), the business network management of VNF is using NE-EMS-NMS (English: Net Element-Electronic Manufacturing Service-Network Management System) structure.

Management Layer is service operation and management platform (English: Operation-Support System/ Business Support System；Abbreviation: OSS/BSS), it modifies and adjusts by virtualization.

Business network domain, i.e., current each telecommunication service network.

Manage layout domain (English: Management and Orchestration；Abbreviation: MANO), it is responsible for entire The mapping and association of business network and NFVI resource are responsible in the management and layout of NFVI resource, are responsible for OSS service resources process Implement etc..MANO includes virtualization infrastructure device management system (English: Virtual Infrastructure Manager；Contracting Write: VIM), virtual network function management (English: VNF Management；Abbreviation: VNFM) and virtual network function composer (English: NFV Orchestration；Abbreviation: NFVO) three entities, it is respectively completed to NFVI, VNF and business network offer Network service (English: Network Service；Abbreviation: NS) three levels management.

It can be seen that one business network can be decomposed into one group of VNF and VNFL according to NFV technology, it is expressed as VNF- FG.And each VNF can be decomposed into one group of VNFC and internal connection figure, each VNFC maps a VM；For each VNFL corresponds to an IP connection, needs to distribute certain link circuit resource (such as: flow, QoS, routing parameter etc.).Such one A business network can be by the top-down decomposition of MANO, until virtual resource can be assigned to；However corresponding virtual resource by VNFI distribution, corresponding VNFL resource are needed to interact with carrying network management system, be distributed by IP bearer network.

However, when carrying out stretching, extension operation to a VNF, relying primarily on resource layer in current NFV technology, providing When active layer is that VNF gets out the resource needed, it can be completed for the corresponding start-up parameter of VNF configuration and operating parameter of stretching, extension The stretching, extension of VNF operates.But VNF needs to be added operation system use when completing stretching, extension operation, then completing to stretch in VNF When operation, resource layer is not only relied only on, it is also necessary to which the cooperation of operation layer will be unable to guarantee VNF if the not cooperation of operation layer The continuity of upper operation business.

Summary of the invention

In view of this, the embodiment of the invention provides a kind of telescopic method equipment of virtual network function, it is existing for solving There is the scaling operation of VNF in technology to lead to the discontinuous problem of the business run on the VNF.

In a first aspect, providing the telescopic method of virtual network function VNF a kind of, comprising:

When completing the scaling operation to the virtual resource of virtual network function VNF in resource layer, the industry of the VNF is obtained Business status information, wherein the business state information includes the business state information for belonging to stateless type, belongs to stateful class At least one of the business state information of type, the business state information for belonging to external status type；

If it is determined that when the business state information of the VNF obtained belongs to the business state information of stateful type, inquiry The operating status of the VNF, and the operating status of the VNF inquired is carried and is sent in VNF resource change message Service Control Unit, wherein the VNF resource change message is used to indicate the Service Control Unit according to the VNF resource The operating status of the VNF carried in the change type and VNF resource change message of message is changed, described in adjustment The business datum run on VNF.

Possible embodiment with reference to first aspect obtains institute in the first possible embodiment of first aspect State the business state information of VNF, comprising:

Inquiry in VNFD is described from the VNF of the VNF and obtains the business state information of the VNF, wherein the business shape State information is described to belong to stateless class for describing whether be based on business completion to the scaling operation of the virtual resource of the VNF The business state information of type is not based on business completion to the scaling operation of the virtual resource of the VNF for describing, described to belong to The business state information of stateful type is used to describe to complete the scaling operation of the virtual resource of the VNF based on business.

Possible embodiment with reference to first aspect, or the first possible embodiment with reference to first aspect, In the possible embodiment of second of first aspect, the operating status of the VNF is inquired, and by the VNF's inquired Operating status, which is carried, is sent to Service Control Unit in VNF resource change message, comprising:

VNFR and/or VNF forwarding figure VNF-FG is recorded by inquiring the corresponding VNF of the VNF, determines the fortune of the VNF Row state, wherein the operating status of the VNF includes the operating status of the VNF example, has between the VNF and be associated with At least one of the operating status of the VNF example of relationship；

The address of Service Control Unit is obtained from service managing server, and according to the address, by the fortune of the VNF Row state, which is carried, is sent to the Service Control Unit in VNF resource change message.

Possible embodiment with reference to first aspect, or the first possible embodiment with reference to first aspect, or Second of the possible embodiment of person with reference to first aspect, in the third possible embodiment of first aspect, if right The scaling operation of the virtual resource of VNF is the scaling operation to the virtual resource of a VNF component VNFC in the VNF, then Obtain the business state information of the VNF, comprising:

Obtain the business state information of the VNFC in the VNF.

The third possible embodiment with reference to first aspect, in the 4th kind of possible embodiment of first aspect In, however, it is determined that when the business state information of the VNF of acquisition belongs to the business state information of stateful type, described in inquiry The operating status of VNF, and the operating status of the VNF inquired is carried and is sent to business in VNF resource change message Control unit, comprising:

If it is determined that the business state information of the VNFC in the VNF obtained belongs to the service condition of stateful type When information, the operating status of the VNFC in the VNF is inquired, and by the fortune of the VNFC in the VNF inquired Row state carries and is sent to Service Control Unit in VNFC resource change message, and the VNFC resource change message is used to indicate The Service Control Unit changes in the change type and VNFC resource change message of message according to the VNFC resource The operating status of the VNFC carried, adjusts the business datum run on the VNFC.

The 4th kind of possible embodiment with reference to first aspect, in the 5th kind of possible embodiment of first aspect In, the method also includes:

If it is determined that the business state information of the VNFC in the VNF obtained belongs to the business of externalized state type When status information, Xiang Suoshu Service Control Unit sends parameter configuration message, wherein the parameter configuration message is used to indicate institute Stating Service Control Unit is that the VNFC configures VNF parameter, and the business state information of the VNFC is sent to service management Server.

Second aspect provides the telescopic method of virtual network function VNF a kind of, comprising:

Service Control Unit receives what network function virtualization composer NFVO/ virtual network function manager VNFM was sent VNF resource changes message, wherein includes the operating status of VNF in the VNF resource change message, the VNF is complete in resource layer Belong to the business state information of stateful type at the business state information of the scaling operation of virtual resource, and the VNF, it is described VNF resource change message is used to indicate the Service Control Unit and changes the VNF carried in message according to the VNF resource Operating status, adjust the business datum run on the VNF；

The Service Control Unit changes the change type of message according to the VNF resource and the VNF resource changes The operating status of the VNF carried in message adjusts the business datum run on the VNF.

In conjunction with the possible embodiment of second aspect, in the first possible embodiment of second aspect, the industry Business control unit changes the change type of message according to the VNF resource and the VNF resource changes the institute carried in message The operating status for stating VNF adjusts the business datum run on the VNF, comprising:

If the change type of the VNF resource change message is to belong to the VNF resource to stretch message, the business control Unit processed changes the operating status of the VNF carried in message according to the VNF resource, according to load balancing principle, to institute The business datum run on the VNF is stated to be migrated.

In conjunction with the possible embodiment of second aspect, in second of possible embodiment of second aspect, the industry Business control unit changes the change type of message according to the VNF resource and the VNF resource changes the institute carried in message The operating status for stating VNF adjusts the business datum run on the VNF, comprising:

If the change type of the VNF resource change message is to belong to the VNF resource to shrink message, the business control Unit processed changes the operating status of the VNF carried in message according to the VNF resource, by the institute before execution shrinkage operation State the business datum run on VNF migrate to execute shrinkage operation after the VNF on run.

The third aspect provides the telescopic equipment of virtual network function VNF a kind of, comprising:

Acquiring unit, for obtaining when completing the scaling operation to the virtual resource of virtual network function VNF in resource layer Take the business state information of the VNF, wherein the business state information includes the service condition letter for belonging to stateless type It ceases, at least one of the business state information for belonging to stateful type, the business state information for belonging to external status type；

Query unit, for if it is determined that the business state information of the VNF obtained belongs to the business shape of stateful type When state information, the operating status of the VNF is inquired, and the operating status of the VNF inquired is carried and is changed in VNF resource Service Control Unit is sent in message, wherein VNF resource change message be used to indicate the Service Control Unit according to The operation shape of the VNF carried in the change type and VNF resource change message of the VNF resource change message State adjusts the business datum run on the VNF.

It is described to obtain in the first possible embodiment of the third aspect in conjunction with the possible embodiment of the third aspect Unit is taken, obtains the business state information of the VNF specifically for describing inquiry in VNFD from the VNF of the VNF, wherein institute It states business state information and is used to describe whether to be based on the scaling operation of the virtual resource of the VNF business completion, it is described to belong to The business state information of stateless type is not based on business completion to the scaling operation of the virtual resource of the VNF for describing, The business state information for belonging to stateful type is used to describe to be based on business to the scaling operation of the virtual resource of the VNF It completes.

In conjunction with the possible embodiment of the third aspect, or the first possible embodiment of the third aspect is combined, In the possible embodiment of second of the third aspect, the query unit is specifically used for corresponding by inquiring the VNF VNF records VNFR and/or VNF forwarding figure VNF-FG, determines the operating status of the VNF, wherein the operating status of the VNF In the operating status for the VNF example for having incidence relation between operating status and the VNF comprising the VNF example extremely Few one kind；

In conjunction with the possible embodiment of the third aspect, or the first possible embodiment of the third aspect is combined, or Person combines second of possible embodiment of the third aspect, described in the third possible embodiment of the third aspect Acquiring unit, if the scaling operation specifically for the virtual resource to VNF is to a VNF component VNFC's in the VNF The scaling operation of virtual resource obtains the business state information of the VNFC in the VNF.

In conjunction with the third possible embodiment of the third aspect, in the 4th kind of possible embodiment of the third aspect In, the query unit, specifically for if it is determined that the business state information of the VNFC in the VNF obtained, which belongs to, shape When the business state information of state type, the operating status of the VNFC in the VNF, and the VNF that will be inquired are inquired In the VNFC operating status carry VNFC resource change message in be sent to Service Control Unit, the VNFC resource Change message is used to indicate the Service Control Unit and changes the change type of message and described according to the VNFC resource The operating status of the VNFC carried in VNFC resource change message, adjusts the business datum run on the VNFC.

In conjunction with the 4th kind of possible embodiment of the third aspect, in the 5th kind of possible embodiment of the third aspect In, transmission unit, for if it is determined that the business state information of the VNFC in the VNF obtained belongs to externalized state class When the business state information of type, Xiang Suoshu Service Control Unit sends parameter configuration message, wherein the parameter configuration message is used It is that the VNFC configures VNF parameter, and the business state information of the VNFC is sent in the instruction Service Control Unit Service managing server.

Fourth aspect provides the telescopic equipment of virtual network function VNF a kind of, comprising:

Receiving unit is sent for receiving network function virtualization composer NFVO/ virtual network function manager VNFM VNF resource change message, wherein include the operating status of VNF in VNF resource change message, the VNF is in resource layer The scaling operation of virtual resource is completed, and the business state information of the VNF belongs to the business state information of stateful type, institute It states VNF resource change message and is used to indicate the Service Control Unit according to carrying in VNF resource change message The operating status of VNF adjusts the business datum run on the VNF；

Telescopic unit, change type and the VNF resource for changing message according to the VNF resource change message The operating status of the VNF of middle carrying, adjusts the business datum run on the VNF.

It is described to stretch in the first possible embodiment of fourth aspect in conjunction with the possible embodiment of fourth aspect Contracting unit, if the change type specifically for VNF resource change message is to belong to the VNF resource to stretch message, institute The operating status that Service Control Unit changes the VNF carried in message according to the VNF resource is stated, according to load balancing original Then, the business datum run on the VNF is migrated.

In conjunction with the possible embodiment of fourth aspect, in second of possible embodiment of fourth aspect,

The telescopic unit, if the change type specifically for VNF resource change message is to belong to the VNF resource Shrinking message, then the Service Control Unit changes the operating status of the VNF carried in message according to the VNF resource, The business datum run on the VNF before executing shrinkage operation is migrated to the VNF after execution shrinkage operation Operation.

The present invention has the beneficial effect that:

The embodiment of the present invention obtains the industry of the VNF when completing the scaling operation to the virtual resource of VNF in resource layer Business status information, the business state information include the business state information for belonging to stateless type, belong to stateful type At least one of business state information, the business state information for belonging to external status type；If it is determined that the VNF obtained It when business state information belongs to the business state information of stateful type, inquires the operating status of the VNF, and will inquire The operating status of the VNF carries and is sent to Service Control Unit in VNF resource change message, and the VNF resource change disappears Breath is used to indicate change type and the VNF resource change that the Service Control Unit changes message according to the VNF resource The operating status of the VNF carried in more message adjusts the business datum run on the VNF.In this way, needing to VNF When executing scaling operation, other than realizing that the virtual resource on resource layer is flexible, business state information, which is belonged to, shape For the VNF of the business state information of state type, the migration operation for operating in business datum on the VNF is synchronously completed, is effectively protected Card operates in the continuity that business executes on the VNF.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this For the those of ordinary skill in field, without any creative labor, it can also be obtained according to these attached drawings His attached drawing.

Fig. 1 is a kind of flow diagram of the telescopic method of virtual network function provided in an embodiment of the present invention；

Fig. 2 is a kind of flow diagram of the telescopic method of virtual network function provided in an embodiment of the present invention；

Fig. 3 is a kind of flow diagram of the telescopic method of virtual network function provided in an embodiment of the present invention；

Fig. 4 (a) is the structural schematic diagram of each network element in NFV environment；

Fig. 4 (b) is the relation structure diagram of corresponding VNF example in different network elements；

Fig. 5 is a kind of flow diagram of the telescopic method of virtual network function provided in an embodiment of the present invention；

Fig. 6 is a kind of structural schematic diagram of the telescopic equipment of virtual network function provided in an embodiment of the present invention；

Fig. 7 is a kind of structural schematic diagram of the telescopic equipment of virtual network function provided in an embodiment of the present invention；

Fig. 8 is a kind of structural schematic diagram of the telescopic equipment of virtual network function provided in an embodiment of the present invention；

Fig. 9 is a kind of structural schematic diagram of the telescopic equipment of virtual network function provided in an embodiment of the present invention.

Specific embodiment

In order to achieve the object of the present invention, the embodiment of the invention provides a kind of telescopic method of virtual network function and set It is standby, when needing to execute scaling operation to VNF, other than realizing that the virtual resource on resource layer is flexible, for business shape State information belongs to for the VNF of the business state information of stateful type, synchronously completes and operates in moving for business datum on the VNF Operation is moved, the continuity for operating in that business executes on the VNF is effectively ensured.

It should be noted that service, the network function of virtualization and infrastructure device describe unit and include in MANO system VNF information model description template (VNFD, VNF Descriptor), VNFD is by virtualization network function (VNF, Virtual Network Function) provider provides, contains VNF function, the capabilities-list that VNF is supported, needs in the case of different capabilities The deployment software information of the virtual machine list, each virtual machine wanted and outgoing port etc..What needs to be explained here is that VNFD also Pair the business state information for describing VNF is contained, the business state information is for describing whether the VNF is based on business, i.e., Whether the scaling operation of the virtual resource of the VNF is based on business completion.

The business state information description type includes: the business state information for belonging to stateless type, belongs to stateful class At least one of the business state information of type, the business state information for belonging to external status type.

Wherein, the business state information for belonging to stateless type is for describing stretching to the virtual resource of the VNF Contracting operation is not based on business completion, i.e., completes to be considered as scaling operation to the scaling operation of the virtual resource of the VNF in resource layer It completes；

The business state information for belonging to stateful type is used to describe the scaling operation of the virtual resource to the VNF It is completed based on business, the VNF of stateful type is belonged to simultaneously for business state information, it is also necessary to record traffic management server Address, which can be IP address, is also possible to domain name, here without limitation；

The business state information for belonging to external status type is used to describe to execute the virtual of scaling operation to the VNF Resource is independently of the VNF.

Understanding about business continuance may include: it is directed to a business, such as: session service, the session industry of user A The business datum that business generates is stored in advance in VNF example 1, when VNF example 1 needs to delete, in order to guarantee the meeting of user A Call business does not interrupt, and the business datum for needing the session service for the user A that will be stored in VNF example 1 to generate at this time is moved It moves in VNF example 2, the session service of guarantee user A in this way is continuous.

The each embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.Obviously, described Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention Range.

Fig. 1 is a kind of flow diagram of the telescopic method of virtual network function provided in an embodiment of the present invention.It is described to stretch Contracting method can be as described below.The executing subject of the embodiment of the present invention is NFVO.

Step 101:NFVO carries out scaling operation to VNF in resource layer.

In a step 101, it is assumed that Element management system (English: Element Management System；Abbreviation: EMS) When determining to VNF progress ability expansion/contraction, pass through the flexible VNF's in the VNF lifecycle management interface that VNFM is provided Application programming interface (English: Application Programming Interface；Abbreviation: API) it is sent to NFVO The request of VNF expansion/contraction.

NFVO determines whether to respond VNF expansion/contraction request by verifying, if NFVO, which is determined, responds the VNF extension/receipts When contracting request, it is first determined the availability of virtual resource in resources bank sends to VIM secondly by virtual resource management interface and provides Source reservation request.

In addition, NFVO sends response message to VNFM, include reserved resource information in the response message；At this point, VNFM to VIM sends VM request to create message, which is used to request VIM to be the VNF creation for needing to be implemented scaling operation VM, and pass through virtual resource management interface request distribution virtual resource.

For VIM when receiving VM request to create message, starting one VM of creation configures corresponding Internet resources for the VM, And VM creation is sent to VNFM and completes message.

It is the parameter for needing to be implemented the VNF configuration of scaling operation and needing that VNFM, which configures interface by VNF, is completed to the VNF In the scaling operation of resource layer, and scaling operation is sent to EMS and completes message.

It should be noted that the scaling operation in the embodiment of the present invention about VNF can be the scaling operation to VNF, It can be the scaling operation to VNFC in VNF, scaling operation object be not specifically limited here.

Step 102: when completing the scaling operation to the virtual resource of VNF in resource layer, NFVO obtains the industry of the VNF Business status information.

Wherein, the business state information includes the business state information for belonging to stateless type, belongs to stateful type Business state information, at least one of the business state information for belonging to external status type.

Wherein, the business state information is for describing whether to be based on industry to the scaling operation of the virtual resource of the VNF Business is completed.

In a step 102, when resource layer completes the scaling operation to the virtual resource of VNF, the business of the VNF is inquired Status information.

Specifically, VNFM is inquired from the VNFD of the VNF and is obtained the business state information of the VNF.

When determining that the business state information of the VNF obtained belongs to the business state information of stateful type, to NFVO sends the business state information of the VNF.

Step 103:NFVO is if it is determined that the business state information of the VNF obtained belongs to the service condition of stateful type When information, the operating status of the VNF is inquired, and the operating status of the VNF inquired is carried and is disappeared in the change of VNF resource Service Control Unit is sent in breath.

Wherein, the VNF resource change message is used to indicate the Service Control Unit and is disappeared according to VNF resource change The operating status of the VNF carried in the change type of breath and VNF resource change message, adjusts and transports on the VNF Capable business datum.

In step 103, NFVO records VNFR and/or VNF forwarding figure VNF-FG by inquiring the corresponding VNF of the VNF, Determine the operating status of the VNF.

Wherein, the operating status of the VNF includes the operating status of the VNF example, has between the VNF and be associated with At least one of the operating status of the VNF example of relationship.

NFVO obtains the address of Service Control Unit from service managing server, and according to the address, by the VNF Operating status carry VNF resource change message in be sent to the Service Control Unit.

At this point, Service Control Unit changes the change type of message according to the VNF resource and the VNF resource changes The operating status of the VNF carried in message adjusts the business datum run on the VNF, and notifies between the VNF The VNF for having incidence relation carries out business reorganization.

Service Control Unit business reorganization complete when, to NFVO send business migration complete message, at this point, NFVO to EMS sends VNF scaling operation and completes message, it is meant that completes to the scaling operation of VNF.

Scheme through the embodiment of the present invention is obtained when completing the scaling operation to the virtual resource of VNF in resource layer The business state information of the VNF, the business state information have comprising belonging to the business state information of stateless type, belonging to At least one of the business state information of Status Type, the business state information for belonging to external status type；If it is determined that obtaining The business state information of VNF when belonging to the business state information of stateful type, inquire the operating status of the VNF, And the operating status of the VNF inquired is carried and is sent to Service Control Unit in VNF resource change message, it is described VNF resource change message be used to indicate the Service Control Unit according to the VNF resource change message change type and The operating status of the VNF carried in the VNF resource change message, adjusts the business datum run on the VNF.This Sample, when needing to execute scaling operation to VNF, other than realizing that the virtual resource on resource layer is flexible, for business shape State information belongs to for the VNF of the business state information of stateful type, synchronously completes and operates in moving for business datum on the VNF Operation is moved, the continuity for operating in that business executes on the VNF is effectively ensured.

Fig. 2 is a kind of flow diagram of the telescopic method of virtual network function provided in an embodiment of the present invention.It is described to stretch Contracting method belongs to same inventive concept with telescopic method described in Fig. 1, and the difference with telescopic method described in Fig. 1 is: The executing subject of Fig. 2 is VNFM.

Step 201:NFVO carries out scaling operation to VNF in resource layer.

It should be noted that the implementation of step 201 is identical as the implementation of step 101 shown in Fig. 1, here No longer repeat.

Step 202: when completing the scaling operation to the virtual resource of VNF in resource layer, VNFM obtains the industry of the VNF Business status information.

In step 202, when resource layer completes the scaling operation to the virtual resource of VNF, VNFM inquires the VNF's Business state information.

Step 203: if it is determined that the business state information of the VNF obtained belongs to the business state information of stateful type When, VNFM inquires the operating status of the VNF, and the operating status of the VNF inquired is carried and is disappeared in the change of VNF resource Service Control Unit is sent in breath.

In step 203, VNFM records VNFR by inquiring the corresponding VNF of the VNF, determines the operation shape of the VNF State.

VNFM obtains the address of Service Control Unit from service managing server, and according to the address, by the VNF Operating status carry VNF resource change message in be sent to the Service Control Unit.

Service Control Unit business reorganization complete when, to VNFM send business migration complete message, at this point, VNFM to EMS and NFVO sends VNF scaling operation and completes message, it is meant that completes to the scaling operation of VNF.

Step 204: if it is determined that the business state information of the VNF obtained belongs to the service condition of externalized state type When information, VNFM sends parameter configuration message to Service Control Unit.

Wherein, it is VNFC configuration VNF parameter that the parameter configuration message, which is used to indicate the Service Control Unit, and The business state information of the VNFC is sent to service managing server.

At this point, Service Control Unit is according to the parameter configuration message received, for the VNF configuration parameter, and by VNF Business state information link to state storage address (English: StateStoredAddress).

It should be noted that the VNF of the business state information for belonging to externalized state type does not need Service control Unit does business migration.

Fig. 3 is a kind of flow diagram of the telescopic method of virtual network function provided in an embodiment of the present invention.The side Method can be as described below.Flexible object described in Fig. 3 is a VNF example in VNF.

It should be noted that due to that can be decomposed inside VNF, a VNF by multiple virtual deployment units (English: Virtual Deployment Unit；Abbreviation: VDU) composition, it is (English: Virtual Link that VDU passes through virtual link；Abbreviation: VL it) connects, VDU corresponds to VNFC.VDU defines the contextual information of VNFC operation, i.e. how a VNFC to instantiate, portion Administration, management and termination etc..

Comprising the business state information for describing VNFC in the characterising parameter of VNFC, the business state information is for describing Whether the VNFC is based on business, i.e., completes to whether the scaling operation of the virtual resource of the VNFC is based on business.

Step 301:VNFM carries out scaling operation to the VNFC in VNF in resource layer.

It should be noted that in step 301 for the specific implementation and step 101 of the VNFC scaling operation carried out In scaling operation is carried out for VNF specific implementation it is approximate, difference is that the object of scaling operation is different.

Step 302: when completing the scaling operation to the virtual resource of the VNFC in the VNF in resource layer, obtaining institute State the business state information of the VNFC in VNF.

Step 303: if it is determined that the business state information of the VNFC in the VNF obtained belongs to stateful type When business state information, the operating status of the VNFC in the VNF is inquired, and will be described in the VNF that inquired The operating status of VNFC, which is carried, is sent to Service Control Unit in VNFC resource change message.

The VNFC resource change message is used to indicate the Service Control Unit and changes message according to the VNFC resource Change type and VNFC resource change message in the operating status of the VNFC that carries, adjust and transported on the VNFC Capable business datum.

Step 304: if it is determined that the business state information of the VNFC in the VNF obtained belongs to externalized state class When the business state information of type, Xiang Suoshu Service Control Unit sends parameter configuration message.

Such as: in NFV environment, fee payment service is disposed, the network element for including has Policy and Charging Rules Function (English Text: Policy and Charging Rules Function；Abbreviation: PCRF), online charging system (English: Online Charging System；Abbreviation: OCS) and flow detection function (English: Traffic Detection Function；Abbreviation: TDF) etc..It is the structural schematic diagram of each network element in NFV environment as shown in Fig. 4 (a).

Wherein, the corresponding 2 VNF examples of PCRF (such as: VNF11 example and VNF12 example), the corresponding 3 VNF examples of TDF (such as: VNF21 example, VNF22 example and VNF23 example), the corresponding 3 VNF examples of OCS (such as: VNF31 example, VNF32 Example and VNF33 example).

It is the relation structure diagram of corresponding VNF example in different network elements as shown in Fig. 4 (b).

Assuming that the session service of user 1 is by the corresponding VNF11 example of PCRF, the corresponding VNF21 example of TDF and OCS pairs The VNF31 example answered services for it；

For the session service of user 2 by the corresponding VNF12 example of PCRF, the corresponding VNF22 example of TDF and OCS are corresponding VNF32 example services for it；

For the session service of user 3 by the corresponding VNF12 example of PCRF, the corresponding VNF23 example of TDF and OCS are corresponding VNF33 example services for it.

Connection relationship and operating status in the same network element between difference VNF example be stored in NFVO VNFR and In VNFFG.

According to business needs, the quantity for reducing the VNF example of operation is determined, issue to VNFM shrink VNF request at this time, VNFM verifies the validity shrinking VNF and requesting to NFVO, determines three VNF examples of TDF being reduced to two VNF examples, i.e., The corresponding VNF23 example of TDF is reduced, and hangs up the corresponding VM of VNF23 example.

The VNFM of TDF inquires VNFD, determines that the business state information of the corresponding VNF example of TDF belongs to stateful type Business state information needs to carry out business relevant treatment when executing and shrinking VNF request.At this point, NFVO by inquiry VNFR and VNFFG obtains the operating status of VNF23 example, and the operating status of VNF23 example is carried and is disappeared in the change request of VNF resource Service Control Unit is sent in breath.

Service Control Unit changes request message according to the VNF resource received, determines the business datum to VNF23 example It is migrated.Such as: the business datum of VNF23 example is migrated to VNF21 example.

At this point, Service Control Unit executes business datum migration operation, i.e. handle between VNF23 example and VNF21 example The session data of user 3 is migrated to VNF21 example, and the session service of user 3 is held when reducing the operation of VNF23 example to be maintained at It is continuous to execute.

Service Control Unit sends business datum migration to NFVO and completes message after the completion of migration；NFVO is being received When message is completed in business datum migration, VNFFG is modified, notice VM discharges the occupied virtual resource of VNF23 example, modifies simultaneously The mapping table of resource and business.

Again for example: being illustrated by taking TDF as an example.Contained inside TDF-NFV 4 VNFC:TDF NE management components, TDF load balancing component, TDF-C component and TDF-P component.

Wherein, TDF-C component represents the control function of TDF, including executes and control with billing parameter, receives from each PCRF Each application delivery control (English: Application Detection and Control；Abbreviation: ADC) rule and from The received charging related needs of OCS.

TDF-P component represents the processing function of TDF, for realizing that TDF VNF network services chart, when TDF VNF conduct When one service chaining node, corresponding operating is carried out according to the rule that TDF-C component receives.

TDF load balancing component is used to carry out load balancing to the business run on multiple TDF-C components.

When the portfolio of current TDF-C is bigger, need to increase the corresponding VNF example of a new TDF-C, according to Current technology scheme is that newly-increased VNF example prepares virtual resource, and creates the VM of operation.It completes when in resource layer to new When the creation operation of VNF example, VNFM judges that the business state information of new VNF example is according to the description of VNFC in VNFD The no business state information for belonging to stateful type, belonging in the business state information that judging result is new VNF example has shape When the business state information of state type, the operating status of other corresponding VNF examples of TDF-C is obtained, and triggers Service control list Member executes business migration, to realize that TDF-C corresponds to the equilibrium of operation business in all VNF examples.

Fig. 5 is a kind of flow diagram of the telescopic method of virtual network function provided in an embodiment of the present invention.It is described to stretch Contracting method can be as described below.Service Control Unit (English: Service Control Unit), for the business to VNF into The data of operation layer are disposed and are adjusted by row control.

Step 501: Service Control Unit receives network function and virtualizes composer NFVO/ virtual network function manager The VNF resource that VNFM is sent changes message.

It wherein, include the operating status of VNF in the VNF resource change message, the VNF completes virtual money in resource layer The scaling operation in source, and the business state information of the VNF belongs to the business state information of stateful type, the VNF resource Change message is used to indicate the operation that the Service Control Unit changes the VNF carried in message according to the VNF resource State adjusts the business datum run on the VNF.

Step 502: the Service Control Unit changes the change type and the VNF of message according to the VNF resource The operating status of the VNF carried in resource change message, adjusts the business datum run on the VNF.

In step 502, if the change type of VNF resource change message is to belong to the VNF resource to stretch message, Then the Service Control Unit changes the operating status of the VNF carried in message according to the VNF resource, equal according to load Weigh principle, migrates to the business datum run on the VNF.

Fig. 6 is a kind of structural schematic diagram of the telescopic equipment of virtual network function provided in an embodiment of the present invention.It is described to set Standby includes: acquiring unit 61 and query unit 62, in which:

Acquiring unit 61, for when resource layer is completed to the scaling operation of the virtual resource of virtual network function VNF, Obtain the business state information of the VNF, wherein the business state information includes the service condition letter for belonging to stateless type It ceases, at least one of the business state information for belonging to stateful type, the business state information for belonging to external status type；

Query unit 62, for if it is determined that the business state information of the VNF obtained belongs to the business of stateful type When status information, the operating status of the VNF is inquired, and the operating status of the VNF inquired is carried and is become in VNF resource Service Control Unit is sent in more message, wherein the VNF resource change message is used to indicate the Service Control Unit root According to the operation shape of the VNF carried in the change type and VNF resource change message of VNF resource change message State adjusts the business datum run on the VNF.

Specifically, the acquiring unit 61 obtains the VNF specifically for describing inquiry in VNFD from the VNF of the VNF Business state information, wherein the business state information be used to describe to the scaling operation of the virtual resource of the VNF whether It is completed based on business, the business state information for belonging to stateless type is for describing stretching to the virtual resource of the VNF Contracting operation is not based on business completion, and the business state information for belonging to stateful type is for describing to the virtual of the VNF The scaling operation of resource is completed based on business.

Specifically, the query unit 62, be specifically used for by inquire the corresponding VNF of the VNF record VNFR and/or VNF forwarding figure VNF-FG, determines the operating status of the VNF, wherein the operating status of the VNF includes the VNF example Has at least one of the operating status of the VNF example of incidence relation between operating status and the VNF；

Specifically, the acquiring unit 61, if the scaling operation specifically for the virtual resource to VNF is to the VNF In a VNF component VNFC virtual resource scaling operation, obtain the VNFC in the VNF service condition letter Breath.

Specifically, the query unit 62, specifically for if it is determined that obtain the VNF in the VNFC business shape When state information belongs to the business state information of stateful type, the operating status of the VNFC in the VNF is inquired, and will be looked into The operating status of the VNFC in the VNF ask, which is carried, is sent to Service control list in VNFC resource change message Member, the VNFC resource change message are used to indicate the change that the Service Control Unit changes message according to the VNFC resource The operating status of the VNFC carried in type and VNFC resource change message, adjusts the industry run on the VNFC Business data.

Optionally, the telescopic equipment further include: transmission unit 63, in which:

Transmission unit 63, for if it is determined that the business state information of the VNFC in the VNF obtained belongs to outside When changing the business state information of Status Type, Xiang Suoshu Service Control Unit sends parameter configuration message, wherein the parameter is matched Setting message and being used to indicate the Service Control Unit is that the VNFC configures VNF parameter, and the service condition of the VNFC is believed Breath is sent to service managing server.

It should be noted that telescopic equipment described in the embodiment of the present invention can be realized by software mode, can also lead to Hardware mode realization is crossed, here without limitation.

Fig. 7 is a kind of structural schematic diagram of the telescopic equipment of virtual network function VNF provided in an embodiment of the present invention.It is described Telescopic equipment includes: receiving unit 71 and telescopic unit 72, in which:

Receiving unit 71, for receiving network function virtualization composer NFVO/ virtual network function manager VNFM hair The VNF resource change message sent, wherein include the operating status of VNF in the VNF resource change message, the VNF is in resource Layer completes the scaling operation of virtual resource, and the business state information of the VNF belongs to the business state information of stateful type, The VNF resource change message is used to indicate the Service Control Unit and changes the institute carried in message according to the VNF resource The operating status for stating VNF adjusts the business datum run on the VNF；

Telescopic unit 72, change type and VNF resource change for changing message according to the VNF resource disappear The operating status of the VNF carried in breath adjusts the business datum run on the VNF.

Specifically, the telescopic unit 72, if changing the change type of message specifically for the VNF resource to belong to VNF resource stretching, extension message is stated, then the Service Control Unit changes the VNF's carried in message according to the VNF resource Operating status migrates the business datum run on the VNF according to load balancing principle.

Specifically, the telescopic unit 72, if changing the change type of message specifically for the VNF resource to belong to It states VNF resource and shrinks message, then the Service Control Unit changes the VNF's carried in message according to the VNF resource Operating status migrates the business datum run on the VNF before executing shrinkage operation to execution shrinkage operation It is run on the VNF.

Fig. 8 is a kind of structural schematic diagram of the telescopic equipment of virtual network function VNF provided in an embodiment of the present invention.It is described Telescopic equipment can be realized by computer architecture.Such as: the telescopic equipment includes: signal receiver 81 and processor 82, It is communicated between signal receiver 81 and processor 82 by bus 83, in which:

Signal receiver 81, for when the scaling operation in resource layer completion to the virtual resource of virtual network function VNF When, obtain the business state information of the VNF, wherein the business state information includes the business shape for belonging to stateless type State information, the business state information for belonging to stateful type, belong in the business state information of external status type at least one Kind；

Processor 82, for if it is determined that the business state information of the VNF obtained belongs to the business shape of stateful type When state information, the operating status of the VNF is inquired, and the operating status of the VNF inquired is carried and is changed in VNF resource Service Control Unit is sent in message, wherein VNF resource change message be used to indicate the Service Control Unit according to The operation shape of the VNF carried in the change type and VNF resource change message of the VNF resource change message State adjusts the business datum run on the VNF.

The signal receiver 81 obtains the business state information of the VNF, comprising:

The processor 82 inquires the operating status of the VNF, and the operating status of the VNF inquired is carried Service Control Unit is sent in VNF resource change message, comprising:

Optionally, if being the void to a VNF component VNFC in the VNF to the scaling operation of the virtual resource of VNF The scaling operation of quasi- resource, then the signal receiver 81 obtains the business state information of the VNF, comprising:

Obtain the business state information of the VNFC in the VNF.

Optionally, however, it is determined that the business state information of the VNF of acquisition belongs to the business state information of stateful type When, the processor 82 inquires the operating status of the VNF, and the operating status of the VNF inquired is carried and is provided in VNF Service Control Unit is sent in source change message, comprising:

Optionally, the telescopic equipment further include: signal projector 84, in which:

The signal projector 84, specifically for if it is determined that the service condition of the VNFC in the VNF obtained is believed When breath belongs to the business state information of externalized state type, Xiang Suoshu Service Control Unit sends parameter configuration message, wherein It is VNFC configuration VNF parameter that the parameter configuration message, which is used to indicate the Service Control Unit, and by the VNFC's Business state information is sent to service managing server.

Wherein, processor 82 can be a general central processor (CPU), microprocessor, application-specific integrated circuit (application-specific integrated circuit, ASIC), or it is one or more for controlling the present invention program The integrated circuit that program executes.

Fig. 9 is a kind of structural schematic diagram of the telescopic equipment of virtual network function VNF provided in an embodiment of the present invention.It is described Telescopic equipment can be realized by computer architecture.Such as: the telescopic equipment includes: signal receiver 91 and processor 92, Signal receiver 91 and processor 92 are communicated by bus 93, in which:

Signal receiver 91, for receiving network function virtualization composer NFVO/ virtual network function manager VNFM The VNF resource of transmission changes message, wherein includes the operating status of VNF in the VNF resource change message, the VNF is being provided Active layer completes the scaling operation of virtual resource, and the business state information of the VNF belongs to the service condition letter of stateful type Breath, VNF resource change message is used to indicate the Service Control Unit and is changed according to the VNF resource to be carried in message The operating status of the VNF adjusts the business datum run on the VNF；

Processor 92, change type and the VNF resource for changing message according to the VNF resource change message The operating status of the VNF of middle carrying, adjusts the business datum run on the VNF.

Specifically, the processor 92 changes the change type of message according to the VNF resource and the VNF resource becomes The operating status of the VNF carried in more message adjusts the business datum run on the VNF, comprising:

Wherein, processor 92 can be a general central processor (CPU), microprocessor, application-specific integrated circuit (application-specific integrated circuit, ASIC), or it is one or more for controlling the present invention program The integrated circuit that program executes.

It will be understood by those skilled in the art that the embodiment of the present invention can provide as method, apparatus (equipment) or computer Program product.Therefore, in terms of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and hardware Embodiment form.Moreover, it wherein includes the meter of computer usable program code that the present invention, which can be used in one or more, The computer journey implemented in calculation machine usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) The form of sequence product.

The present invention be referring to according to the method for the embodiment of the present invention, the flow chart of device (equipment) and computer program product And/or block diagram describes.It should be understood that each process in flowchart and/or the block diagram can be realized by computer program instructions And/or the combination of the process and/or box in box and flowchart and/or the block diagram.It can provide these computer programs to refer to Enable the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate One machine so that by the instruction that the processor of computer or other programmable data processing devices executes generate for realizing The device for the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of telescopic method of virtual network function VNF characterized by comprising

When completing the scaling operation to the virtual resource of virtual network function VNF in resource layer, the business shape of the VNF is obtained State information, wherein the business state information includes the business state information for belonging to stateless type, belongs to stateful type At least one of business state information, the business state information for belonging to external status type；The business state information is used for Description is completed to whether the scaling operation of the virtual resource of the VNF is based on business, the business shape for belonging to stateless type State information is not based on business completion to the scaling operation of the virtual resource of the VNF for describing, described to belong to stateful type Business state information be used to describe to the scaling operation of the virtual resource of the VNF based on business completion；

If it is determined that when the business state information of the VNF obtained belongs to the business state information of stateful type, described in inquiry The operating status of VNF, and the operating status of the VNF inquired is carried and is sent to business in VNF resource change message Control unit, wherein the VNF resource change message is used to indicate the Service Control Unit and is changed according to the VNF resource The operating status of the VNF carried in the change type of message and VNF resource change message, adjusts on the VNF The business datum of operation.

2. telescopic method as described in claim 1, which is characterized in that obtain the business state information of the VNF, comprising:

Inquiry in VNFD, which is described, from the VNF of the VNF obtains the business state information of the VNF.

3. telescopic method as described in claim 1, which is characterized in that inquire the operating status of the VNF, and will inquire The operating status of the VNF, which is carried, is sent to Service Control Unit in VNF resource change message, comprising:

VNFR and/or VNF forwarding figure VNF-FG is recorded by inquiring the corresponding VNF of the VNF, determines the operation shape of the VNF State, wherein the operating status of the VNF is comprising having incidence relation between the operating status and the VNF of the VNF example VNF example at least one of operating status；

The address of Service Control Unit is obtained from service managing server, and according to the address, by the operation shape of the VNF State, which is carried, is sent to the Service Control Unit in VNF resource change message.

4. telescopic method as described in any one of claims 1 to 3, which is characterized in that if the flexible behaviour of the virtual resource to VNF As the scaling operation of the virtual resource to a VNF component VNFC in the VNF, then the service condition of the VNF is obtained Information, comprising:

Obtain the business state information of the VNFC in the VNF.

5. telescopic method as claimed in claim 4, which is characterized in that if it is determined that the business state information of the VNF obtained When belonging to the business state information of stateful type, the operating status of the VNF is inquired, and by the fortune of the VNF inquired Row state, which is carried, is sent to Service Control Unit in VNF resource change message, comprising:

If it is determined that the business state information of the VNFC in the VNF obtained belongs to the business state information of stateful type When, inquire the operating status of the VNFC in the VNF, and by the operation shape of the VNFC in the VNF inquired State carries and is sent to Service Control Unit in VNFC resource change message, and the VNFC resource change message is used to indicate described Service Control Unit changes the change type of message according to the VNFC resource and the VNFC resource is changed in message and carried The VNFC operating status, adjust the business datum run on the VNFC.

6. telescopic method as claimed in claim 5, which is characterized in that the method also includes:

If it is determined that the business state information of the VNFC in the VNF obtained belongs to the service condition of externalized state type When information, Xiang Suoshu Service Control Unit sends parameter configuration message, wherein the parameter configuration message is used to indicate the industry Control unit of being engaged in is that the VNFC configures VNF parameter, and the business state information of the VNFC is sent to service management service Device.

7. a kind of telescopic method of virtual network function VNF characterized by comprising

Service Control Unit receives the VNF that network function virtualization composer NFVO/ virtual network function manager VNFM is sent Resource changes message, wherein includes the operating status of VNF in the VNF resource change message, the VNF is completed in resource layer The scaling operation of virtual resource, and the business state information of the VNF belongs to the business state information of stateful type, it is described VNF resource change message is used to indicate the Service Control Unit and changes the VNF carried in message according to the VNF resource Operating status, adjust the business datum run on the VNF；

The Service Control Unit changes the change type of message according to the VNF resource and the VNF resource changes message The operating status of the VNF of middle carrying, adjusts the business datum run on the VNF.

8. telescopic method as described in claim 7, which is characterized in that the Service Control Unit is according to the VNF resource The operating status of the VNF carried in the change type and VNF resource change message of message is changed, described in adjustment The business datum run on VNF, comprising:

If the change type of the VNF resource change message is to belong to the VNF resource to stretch message, the Service control list Member changes the operating status of the VNF carried in message according to the VNF resource, according to load balancing principle, to the institute The business datum run on VNF is stated to be migrated.

9. telescopic method as described in claim 7, which is characterized in that the Service Control Unit is according to the VNF resource The operating status of the VNF carried in the change type and VNF resource change message of message is changed, described in adjustment The business datum run on VNF, comprising:

If the change type of the VNF resource change message is to belong to the VNF resource to shrink message, the Service control list Member changes the operating status of the VNF carried in message according to the VNF resource, will execute before shrinkage operation described in The business datum run on VNF migrate to execute shrinkage operation after the VNF on run.

10. a kind of telescopic equipment of virtual network function VNF characterized by comprising

Acquiring unit, for obtaining institute when completing the scaling operation to the virtual resource of virtual network function VNF in resource layer State the business state information of VNF, wherein the business state information includes the business state information for belonging to stateless type, belongs to In at least one of the business state information of stateful type, the business state information for belonging to external status type；The industry Business status information is completed for describe whether to be based on the scaling operation of the virtual resource of the VNF business, it is described belong to it is ill-mannered The business state information of state type is not based on business completion to the scaling operation of the virtual resource of the VNF for describing, described The business state information for belonging to stateful type is used to describe to be based on business to the scaling operation of the virtual resource of the VNF complete At；

Query unit, for if it is determined that the business state information of the VNF obtained belongs to the service condition letter of stateful type When breath, the operating status of the VNF is inquired, and the operating status of the VNF inquired is carried and changes message in VNF resource In be sent to Service Control Unit, wherein VNF resource change message is used to indicate the Service Control Unit according to The operating status of the VNF carried in the change type and VNF resource change message of VNF resource change message, is adjusted The business datum run on the whole VNF.

11. telescopic equipment as claimed in claim 10, which is characterized in that

The acquiring unit obtains the service condition letter of the VNF specifically for describing inquiry in VNFD from the VNF of the VNF Breath.

12. telescopic equipment as claimed in claim 10, which is characterized in that

The query unit is specifically used for recording VNFR and/or VNF forwarding figure VNF- by inquiring the corresponding VNF of the VNF FG determines the operating status of the VNF, wherein the operating status of the VNF includes operating status and the institute of the VNF example State at least one of the operating status for having the VNF example of incidence relation between VNF；

13. such as the described in any item telescopic equipments of claim 10 to 12, which is characterized in that

The acquiring unit, if the scaling operation specifically for the virtual resource to VNF is to a VNF group in the VNF The scaling operation of the virtual resource of part VNFC obtains the business state information of the VNFC in the VNF.

14. telescopic equipment as claimed in claim 13, which is characterized in that

The query unit, specifically for if it is determined that the business state information of the VNFC in the VNF obtained belongs to and has When the business state information of Status Type, the operating status of the VNFC in the VNF is inquired, and described in inquiring The operating status of the VNFC in VNF, which is carried, is sent to Service Control Unit, the VNFC in VNFC resource change message Resource change message is used to indicate change type and the institute that the Service Control Unit changes message according to the VNFC resource The operating status for stating the VNFC carried in VNFC resource change message, adjusts the business datum run on the VNFC.

15. telescopic equipment as claimed in claim 14, which is characterized in that the telescopic equipment further include: transmission unit, In:

Transmission unit, for if it is determined that the business state information of the VNFC in the VNF obtained belongs to externalized state When the business state information of type, Xiang Suoshu Service Control Unit sends parameter configuration message, wherein the parameter configuration message Being used to indicate the Service Control Unit is that the VNFC configures VNF parameter, and the business state information of the VNFC is sent To service managing server.

16. a kind of telescopic equipment of virtual network function VNF characterized by comprising

Receiving unit, the VNF sent for receiving network function virtualization composer NFVO/ virtual network function manager VNFM Resource changes message, wherein includes the operating status of VNF in the VNF resource change message, the VNF is completed in resource layer The scaling operation of virtual resource, and the business state information of the VNF belongs to the business state information of stateful type, it is described VNF resource change message is used to indicate the fortune that Service Control Unit changes the VNF carried in message according to the VNF resource Row state adjusts the business datum run on the VNF；

Telescopic unit, change type and the VNF resource for changing message according to the VNF resource, which change in message, to be taken The operating status of the VNF of band, adjusts the business datum run on the VNF.

17. telescopic equipment as claimed in claim 16, which is characterized in that

The telescopic unit, if the change type specifically for VNF resource change message is to belong to the VNF resource to stretch Message, then the Service Control Unit changes the operating status of the VNF carried in message according to the VNF resource, according to Load balancing principle migrates the business datum run on the VNF.

18. telescopic equipment as described in claim 16, which is characterized in that

The telescopic unit, if the change type specifically for VNF resource change message is to belong to the VNF resource to shrink Message, then the Service Control Unit changes the operating status of the VNF carried in message according to the VNF resource, will hold The business datum run on the VNF before row shrinkage operation migrate to execute shrinkage operation after the VNF on run.