CN106209402A

CN106209402A - The telescopic method of a kind of virtual network function and equipment

Info

Publication number: CN106209402A
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: 2016-12-07
Anticipated expiration: 2035-04-30
Also published as: CN106209402B

Abstract

The invention discloses telescopic method and the equipment of a kind of virtual network function, including: when completing the scaling operation of the virtual resource of VNF at resource layer, obtain the business state information of VNF；During if it is determined that the business state information of the VNF obtained belongs to the business state information having Status Type, the running status of inquiry VNF, and the running status of the VNF inquired carried in VNF resource change message, be sent to Service Control Unit, VNF resource change message, for indicating Service Control Unit according to the running status of the VNF carried in the VNF resource change change type of message and VNF resource change message, adjusts the business datum of the upper operation of VNF.When needs perform scaling operation to VNF, business state information is belonged to the VNF of the business state information having Status Type, synchronously complete and operate in the migration operation of business datum on this VNF, be effectively ensured and operate in the seriality that on this VNF, business performs.

Description

The telescopic method of a kind of virtual network function and equipment

Technical field

The present invention relates to computer science and technology field, particularly relate to the telescopic method of a kind of virtual network function Equipment.

Background technology

Network function virtualization is (English: Network Function Virtualization；Abbreviation: NFV) skill Art can be interpreted as the function of each network element of use in communication network simply from current dedicated platform Migrate on general X86COTS server.By NFV technology by communication network use each Network element is transformed into independent application, can with flexible deployment at measured server, store and exchange On the unified platform of other device build such as machine, and by the decoupling between soft or hard equipment so that each should With can quickly increase virtual resource to realize the purpose of Quick Extended power system capacity, or can quickly reduce Virtual resource, to realize the purpose of pinch system capacity, is greatly promoted the elasticity of network.

The basis of NFV technology comprises cloud computing technology and Intel Virtualization Technology.General COTS calculating/storage/ The hardware devices such as network can be decomposed into multiple virtual resource, for the various application in upper strata by Intel Virtualization Technology Use, pass through Intel Virtualization Technology, it is possible to achieve the decoupling between application and hardware so that virtual resource supplies Speed is greatly increased；Pass through cloud computing technology, it is possible to achieve the elastic telescopic of application, it is achieved virtual resource with Traffic load matches, and not only improves the utilization ratio of virtual resource, and improves the response speed of system Rate.

The system architecture of NFV technology definition can be divided into three layers from vertical looking up: infrastructure layer, virtual net Network layers and Management Layer；Two territories can be divided into: business network territory and management layout territory from transversely seeing.

Wherein, infrastructure layer is (English: NFV Infrastructure；Abbreviation: NFVI), from cloud computing From the point of view of technology, belong to a resource pool.NFVI is mapped to physical basis equipment (such as: Duo Gefen Dissipate the data center disposed), coupled together by high-speed communication network.NFVI needs to calculate/storage/exchange The resource pools such as virtual calculating/storage/exchange are converted to by Intel Virtualization Technology Deng physical resource.

Virtual net network layers, corresponding each telecommunication service network at present, each physical NE be mapped as one virtual Network element VNF is (English: Virtual Network Function).VNF resource requirement needs to be decomposed into virtual Calculating/storage/exchange resource, NFVI carry, interface between VNF use signaling interface (such as: 3GPP is (English: 3rd Generation Partnership Project)+ITU-T is (English: ITU Telecommunication Standardization Sector)), the business webmaster of VNF uses NE-EMS-NMS is (English: Net Element-Electronic Manufacturing Service-Network Management System) structure.

Management Layer, (English: Operation-Support System/ for service operation and management platform Business Support System；Abbreviation: OSS/BSS), modified by virtualization and adjust.

Business network territory, each the most current telecommunication service network.

Management layout territory is (English: Management and Orchestration；Abbreviation: MANO), is responsible for Management and layout to whole NFVI resource, is responsible for business network and the mapping of NFVI resource and association, It is responsible for the enforcement etc. of OSS service resources flow process.MANO includes virtualizing infrastructure device management system (English Literary composition: Virtual Infrastructure Manager；Abbreviation: VIM), virtual network function management (English: VNF Management；Abbreviation: VNFM) and virtual network function composer (English: NFV Orchestration；Abbreviation: NFVO) three entities, is respectively completed NFVI, VNF and business network The network service provided is (English: Network Service；Abbreviation: the NS) management of three levels.

As can be seen here, according to NFV technology, a business network can be decomposed into one group of VNF and VNFL, It is expressed as VNF-FG.And each VNF can be decomposed into one group of VNFC and internal connection figure, each Individual VNFC maps a VM；For each VNFL, correspond to an IP and connect, need to distribute one Fixed link circuit resource (such as: flow, QoS, routing parameter etc.).Such a business network can pass through The top-down decomposition of MANO, until virtual resource can be assigned to；But the virtual resource of correspondence is by VNFI Distribution, corresponding VNFL resource needs mutual with bearer network guard system, IP bearer network distributes.

But, in current NFV technology, when a VNF carries out stretching operation, rely primarily on Resource layer, when resource layer is the resource that VNF gets out needs, opens accordingly for the VNF configuration stretched Dynamic parameter and operational factor can complete the stretching, extension operation of VNF.But, VNF complete stretch operation time, Need to add operation system to use, then when VNF completes to stretch operation, not only rely on resource layer, Also need to the cooperation of operation layer, without the cooperation of operation layer, will be unable to ensure to run business on VNF Seriality.

Summary of the invention

In view of this, embodiments provide the telescopic method equipment of a kind of virtual network function, be used for Solve the discontinuous problem of business that the scaling operation of VNF in prior art causes running on this VNF.

First aspect, it is provided that the telescopic method of a kind of virtual network function VNF, including:

When completing the scaling operation of the virtual resource of virtual network function VNF at resource layer, obtain institute Stating the business state information of VNF, wherein, described business state information comprises the industry belonging to stateless type Business status information, belong to the service condition having the business state information of Status Type, belonging to external status type At least one in information；

If it is determined that the business state information of the described VNF obtained belongs to the business state information having Status Type Time, inquire about the running status of described VNF, and the running status of the described VNF inquired is carried Being sent to Service Control Unit in VNF resource change message, wherein, described VNF resource change message is used In indicating described Service Control Unit according to the described VNF resource change change type of message and described The running status of the described VNF carried in VNF resource change message, adjusts the industry run on described VNF Business data.

In conjunction with the embodiment that first aspect is possible, in the first possible embodiment of first aspect, Obtain the business state information of described VNF, including:

Describe inquiry VNFD from the VNF of described VNF and obtain the business state information of described VNF, Wherein, described business state information is for describing the whether base of the scaling operation to the virtual resource of described VNF Complete in business, described in belong to the business state information of stateless type for describing the void to described VNF The scaling operation intending resource is not based on business and completes, described in belong to the business state information having Status Type for Describe the scaling operation to the virtual resource of described VNF to complete based on business.

In conjunction with the embodiment that first aspect is possible, or combine the first possible embodiment party of first aspect Formula, in the embodiment that the second of first aspect is possible, inquires about the running status of described VNF, and The running status of the described VNF inquired is carried in VNF resource change message, is sent to Service control Unit, including:

Figure VNF-FG is forwarded by inquiring about VNF record VNFR and/or VNF corresponding for described VNF, Determining the running status of described VNF, wherein, the running status of described VNF comprises described VNF example Running status and described VNF between possess incidence relation VNF example running status at least A kind of；

The address of Service Control Unit is obtained from service managing server, and according to described address, by described The running status of VNF is carried and is sent to described Service Control Unit in VNF resource change message.

In conjunction with the embodiment that first aspect is possible, or combine the first possible embodiment party of first aspect Formula, or the embodiment that the second of combining first aspect is possible are possible at the third of first aspect In embodiment, if the scaling operation to the virtual resource of VNF is to a VNF in described VNF The scaling operation of the virtual resource of assembly VNFC, then obtain the business state information of described VNF, including:

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

In conjunction with the third possible embodiment of first aspect, in the 4th kind of possible enforcement of first aspect In mode, however, it is determined that the business state information of the described VNF of acquisition belongs to the service condition having Status Type During information, inquire about the running status of described VNF, and the running status of the described VNF inquired is carried It is sent to Service Control Unit in VNF resource change message, including:

If it is determined that the business state information of the described VNFC in the described VNF obtained belongs to Status Type Business state information time, inquire about the running status of described VNFC in described VNF, and will inquire Described VNF in the running status of described VNFC carry and be sent in VNFC resource change message Service Control Unit, described VNFC resource change message is used for indicating described Service Control Unit according to described That carries in the change type of VNFC resource change message and described VNFC resource change message is described The running status of VNFC, adjusts the business datum run on described VNFC.

In conjunction with the 4th kind of possible embodiment of first aspect, in the 5th kind of possible enforcement of first aspect In mode, described method also includes:

If it is determined that the business state information of the described VNFC in the described VNF obtained belongs to externalized state During the business state information of type, send parameter configuration message to described Service Control Unit, wherein, described It is that described VNFC configures VNF parameter that parameter configuration message is used for indicating described Service Control Unit, and will The business state information of described VNFC is sent to service managing server.

Second aspect, it is provided that the telescopic method of a kind of virtual network function VNF, including:

Service Control Unit receives network function virtualization composer NFVO/ virtual network function manager The VNF resource change message that VNFM sends, wherein, comprises VNF in described VNF resource change message Running status, described VNF completes the scaling operation of virtual resource, and the industry of described VNF at resource layer Business status information belongs to the business state information having Status Type, and described VNF resource change message is used for referring to Show the described Service Control Unit operation shape according to the described VNF carried in described VNF resource change message State, adjusts the business datum run on described VNF；

Described Service Control Unit changes the change type of message and described VNF according to described VNF resource The running status of the described VNF carried in resource change message, adjusts the business number run on described VNF According to.

In conjunction with the embodiment that second aspect is possible, in the first possible embodiment of second aspect, Described Service Control Unit changes the change type of message and described VNF resource according to described VNF resource The running status of the described VNF carried in change message, adjusts the business datum run on described VNF, Including:

If the change type of described VNF resource change message stretches message for belonging to described VNF resource, then Described Service Control Unit is according to the operation shape of the described VNF carried in described VNF resource change message State, according to load balancing principle, migrates the business datum run on described VNF.

In conjunction with the embodiment that second aspect is possible, in the embodiment that the second of second aspect is possible, Described Service Control Unit changes the change type of message and described VNF resource according to described VNF resource The running status of the described VNF carried in change message, adjusts the business datum run on described VNF, Including:

If the change type of described VNF resource change message shrinks message for belonging to described VNF resource, then Described Service Control Unit is according to the operation shape of the described VNF carried in described VNF resource change message State, the business datum that the described VNF before performing shrinkage operation runs migrates to perform shrinkage operation Run on described VNF afterwards.

The third aspect, it is provided that the telescopic equipment of a kind of virtual network function VNF, including:

Acquiring unit, for when completing the flexible of the virtual resource to virtual network function VNF at resource layer During operation, obtaining the business state information of described VNF, wherein, described business state information comprises and belongs to The business state information of stateless type, belong to and have the business state information of Status Type, belong to external status At least one in the business state information of type；

Query unit, for if it is determined that the business state information of the described VNF obtained belongs to Status Type Business state information time, inquire about the running status of described VNF, and the fortune of described VNF that will inquire Row state is carried and is sent to Service Control Unit in VNF resource change message, and wherein, described VNF provides Change message in source is for indicating described Service Control Unit according to the change class of described VNF resource change message The running status of the described VNF carried in type and described VNF resource change message, adjusts described VNF The business datum of upper operation.

In conjunction with the embodiment that the third aspect is possible, in the first possible embodiment of the third aspect, Described acquiring unit, obtains described VNF specifically for describing inquiry in VNFD from the VNF of described VNF Business state information, wherein, described business state information is for describing virtual resource to described VNF Scaling operation whether complete based on business, described in belong to the business state information of stateless type for describing The scaling operation of the virtual resource of described VNF is not based on business complete, described in belong to and have Status Type Business state information completes based on business for describing the scaling operation to the virtual resource of described VNF.

In conjunction with the embodiment that the third aspect is possible, or combine the first possible embodiment party of the third aspect Formula, in the embodiment that the second of the third aspect is possible, described query unit, specifically for by looking into Ask VNF corresponding for described VNF and record VNFR and/or VNF forwarding figure VNF-FG, determine described VNF Running status, wherein, the running status of described VNF comprise described VNF example running status and At least one in the running status of the VNF example possessing incidence relation between described VNF；

In conjunction with the embodiment that the third aspect is possible, or combine the first possible embodiment party of the third aspect Formula, or the embodiment that the second of combining the third aspect is possible are possible at the third of the third aspect In embodiment, described acquiring unit, if the scaling operation specifically for the virtual resource to VNF is right The scaling operation of the virtual resource of a VNF assembly VNFC in described VNF, obtains described VNF In the business state information of described VNFC.

In conjunction with the third possible embodiment of the third aspect, in the 4th kind of possible enforcement of the third aspect In mode, described query unit, specifically for if it is determined that described VNFC in the described VNF that obtains When business state information belongs to the business state information having Status Type, that inquires about in described VNF is described The running status of the described VNFC in the running status of VNFC, and the described VNF that will inquire is carried Being sent to Service Control Unit in VNFC resource change message, described VNFC resource change message is used In indicating described Service Control Unit according to the described VNFC resource change change type of message and described The running status of the described VNFC carried in VNFC resource change message, adjusts and runs on described VNFC Business datum.

In conjunction with the 4th kind of possible embodiment of the third aspect, in the 5th kind of possible enforcement of the third aspect In mode, transmitting element, for if it is determined that the service condition of described VNFC in the described VNF that obtains When information belongs to the business state information of externalized state type, send parameter to described Service Control Unit and join Putting message, wherein, it is that described VNFC joins that described parameter configuration message is used for indicating described Service Control Unit Put VNF parameter, and the business state information of described VNFC is sent to service managing server.

Fourth aspect, it is provided that the telescopic equipment of a kind of virtual network function VNF, including:

Receive unit, be used for receiving network function virtualization composer NFVO/ virtual network function manager The VNF resource change message that VNFM sends, wherein, comprises VNF in described VNF resource change message Running status, described VNF completes the scaling operation of virtual resource, and the industry of described VNF at resource layer Business status information belongs to the business state information having Status Type, and described VNF resource change message is used for referring to Show the described Service Control Unit operation shape according to the described VNF carried in described VNF resource change message State, adjusts the business datum run on described VNF；

Telescopic unit, for the change type according to described VNF resource change message and described VNF money The running status of the described VNF carried in source change message, adjusts the business datum run on described VNF.

In conjunction with the embodiment that fourth aspect is possible, in the first possible embodiment of fourth aspect, Described telescopic unit, if changing the change type of message for belonging to described specifically for described VNF resource VNF resource stretches message, and the most described Service Control Unit carries according in described VNF resource change message The running status of described VNF, according to load balancing principle, to the business run on described VNF Data migrate.

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

Described telescopic unit, if changing the change type of message for belonging to specifically for described VNF resource Stating VNF resource and shrink message, the most described Service Control Unit is taken according in described VNF resource change message The running status of the described VNF of band, the business number that will run on the described VNF before execution shrinkage operation Run according on the described VNF after migrating to execution shrinkage operation.

The present invention has the beneficial effect that:

The embodiment of the present invention, when completing the scaling operation of the virtual resource of VNF at resource layer, obtains institute Stating the business state information of VNF, described business state information comprises the service condition belonging to stateless type Information, belong to and have the business state information of Status Type, belong in the business state information of external status type At least one；If it is determined that the business state information of the described VNF obtained belongs to the business having Status Type During status information, inquire about the running status of described VNF, and the running status of described VNF that will inquire Carrying and be sent to Service Control Unit in VNF resource change message, described VNF resource change message is used In indicating described Service Control Unit according to the described VNF resource change change type of message and described The running status of the described VNF carried in VNF resource change message, adjusts the industry run on described VNF Business data.So, when needs perform scaling operation to VNF, except realizing virtual on resource layer Outside resource is flexible, VNF business state information being belonged to the business state information having Status Type comes Say, synchronously complete and operate in the migration operation of business datum on this VNF, be effectively ensured and operate in this VNF The seriality that upper business performs.

Accompanying drawing explanation

For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below The accompanying drawing used is needed to briefly introduce, it should be apparent that, the accompanying drawing in describing below is only the present invention's Some embodiments, from the point of view of those of ordinary skill in the art, in the premise not paying creative work Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.

The schematic flow sheet of the telescopic method of a kind of virtual network function that Fig. 1 provides for the embodiment of the present invention；

The schematic flow sheet of the telescopic method of a kind of virtual network function that Fig. 2 provides for the embodiment of the present invention；

The schematic flow sheet of the telescopic method of a kind of virtual network function that Fig. 3 provides for the embodiment of the present invention；

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

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

The schematic flow sheet of the telescopic method of a kind of virtual network function that Fig. 5 provides for the embodiment of the present invention；

The structural representation of the telescopic equipment of a kind of virtual network function that Fig. 6 provides for the embodiment of the present invention；

The structural representation of the telescopic equipment of a kind of virtual network function that Fig. 7 provides for the embodiment of the present invention；

The structural representation of the telescopic equipment of a kind of virtual network function that Fig. 8 provides for the embodiment of the present invention；

The structural representation of the telescopic equipment of a kind of virtual network function that Fig. 9 provides for the embodiment of the present invention.

Detailed description of the invention

In order to realize the purpose of the present invention, embodiments provide the flexible side of a kind of virtual network function Method and equipment, when needs perform scaling operation to VNF, except realizing the virtual resource on resource layer Outside Shen Suo, for the VNF that business state information belongs to the business state information having Status Type, Synchronously complete and operate in the migration operation of business datum on this VNF, be effectively ensured and operate in industry on this VNF The seriality that business performs.

It should be noted that in MANO system, service, virtualized network function and infrastructure device Describing unit and comprise VNF information model description template (VNFD, VNF Descriptor), VNFD is by void Planization network function (VNF, Virtual Network Function) provider provides, and contains VNF merit Can, VNF support capabilities-list, the virtual machine list needed in the case of different capabilities, the portion of each virtual machine Administration's software information and port etc. of going out.Need exist for explanation, further comprises for describing at VNFD The business state information of VNF, whether this business state information is used for describing this VNF based on business, the most right Whether the scaling operation of the virtual resource of described VNF completes based on business.

This business state information describes type and includes: belongs to the business state information of stateless type, belong to and have The business state information of Status Type, at least one belonged in the business state information of external status type.

Wherein, the business state information of stateless type is belonged to described in virtual for describe described VNF The scaling operation of resource is not based on business and completes, and i.e. completes stretching of the virtual resource to this VNF at resource layer Contracting operation is i.e. considered as scaling operation and completes；

The described business state information having Status Type that belongs to is for describing the virtual resource to described VNF Scaling operation completes based on business, and belonging to simultaneously for business state information has the VNF of Status Type, also needs Wanting the address of record traffic management server, this address can be IP address, it is also possible to be domain name, here Do not limit；

The described business state information belonging to external status type performs flexible behaviour for describing to described VNF The virtual resource made is independent of this VNF.

Understanding about business continuance can comprise: for a business, such as: session service, user The business datum that the session service of A produces is stored in advance in VNF example 1, and once VNF example 1 needs Time to be deleted, in order to ensure that the session service of user A does not interrupts, now need to will be stored in VNF The business datum that the session service of the user A on example 1 produces migrates to, on VNF example 2, so protect The session service of card user A is continuous.

Below in conjunction with Figure of description, each embodiment of the present invention is described in further detail.Obviously, institute The embodiment described is only a part of embodiment of the present invention rather than whole embodiments.Based on the present invention In embodiment, it is all that those of ordinary skill in the art are obtained under not making creative work premise Other embodiments, broadly falls into the scope of protection of the invention.

The schematic flow sheet of the telescopic method of a kind of virtual network function that Fig. 1 provides for the embodiment of the present invention. Described telescopic method can be as described below.The executive agent of the embodiment of the present invention is NFVO.

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

In a step 101, it is assumed that Element management system is (English: Element Management System； Abbreviation: EMS) determine VNF is carried out ability expansion/contraction time, the VNF provided by VNFM The application programming interface of the flexible VNF in lifecycle management interface is (English: Application Programming Interface；Abbreviation: API) send the request of VNF expansion/contraction to NFVO.

By checking, NFVO determines whether that responding this VNF expansion/contraction asks, if NFVO determines response During the request of this VNF expansion/contraction, it is first determined the availability of virtual resource in resources bank, secondly by void Intend resource management's interface and send resource reservation request to VIM.

Additionally, NFVO sends response message to VNFM, this response message comprises reserved resource information； Now, VNFM sends VM request to create message to VIM, and this VM request to create message is used for asking VIM is to need the VNF performing scaling operation to create VM, and by the request point of virtual resource management interface Join virtual resource.

VIM, when receiving VM request to create message, starts and creates a VM, configures phase for this VM The Internet resources answered, and send VM establishment completion message to VNFM.

VNFM is to need to perform the parameter that the VNF configuration of scaling operation needs by VNF configuration interface, Complete this VNF at the scaling operation of resource layer, and send scaling operation completion message to EMS.

It should be noted that the scaling operation about VNF can be to stretch VNF in the embodiment of the present invention Contracting operation, it is also possible to be to the scaling operation of VNFC in VNF, here scaling operation object do not done Concrete restriction.

Step 102: when completing the scaling operation of the virtual resource of VNF at resource layer, NFVO obtains The business state information of described VNF.

Wherein, described business state information comprises and belongs to the business state information of stateless type, belongs to and have shape The business state information of state type, at least one belonged in the business state information of external status type.

Wherein, described business state information for describing the scaling operation to the virtual resource of described VNF is No complete based on business.

In a step 102, when resource layer completes the scaling operation of the virtual resource of VNF, inquire about institute State the business state information of VNF.

Specifically, VNFM inquires about the service condition obtaining described VNF from the VNFD of described VNF Information.

Business state information at the described VNF determining acquisition belongs to the business state information of Status Type Time, the business state information of this VNF is sent to NFVO.

Step 103:NFVO has Status Type if it is determined that the business state information of the described VNF obtained belongs to Business state information time, inquire about the running status of described VNF, and the fortune of described VNF that will inquire Row state is carried and is sent to Service Control Unit in VNF resource change message.

Wherein, described VNF resource change message is used for indicating described Service Control Unit according to described VNF The fortune of the described VNF carried in the change type of resource change message and described VNF resource change message Row state, adjusts the business datum run on described VNF.

In step 103, NFVO by inquire about described VNF corresponding VNF record VNFR and/or VNF forwards figure VNF-FG, determines the running status of described VNF.

Wherein, the running status of described VNF comprises the running status of described VNF example and described VNF Between possess incidence relation VNF example running status at least one.

NFVO obtains the address of Service Control Unit from service managing server, and according to described address, The running status of described VNF is carried in VNF resource change message, is sent to described Service control list Unit.

Now, Service Control Unit is according to the described VNF resource change change type of message and described The running status of the described VNF carried in VNF resource change message, adjusts the industry run on described VNF Business data, and notify that the VNF possessing incidence relation between described VNF carries out business reorganization.

Service Control Unit is when business reorganization completes, to NFVO transmission business migration completion message, now, NFVO sends VNF scaling operation completion message to EMS, it is meant that complete the scaling operation of VNF.

By the scheme of the embodiment of the present invention, as the flexible behaviour completing the virtual resource to VNF at resource layer When making, obtaining the business state information of described VNF, described business state information comprises and belongs to stateless class The business state information of type, belong to the industry having the business state information of Status Type, belonging to external status type At least one in business status information；If it is determined that the business state information of the described VNF obtained belongs to shape During the business state information of state type, inquire about the running status of described VNF, and the described VNF that will inquire Running status carry VNF resource change message in be sent to Service Control Unit, described VNF resource Change message is for indicating described Service Control Unit according to the change type of described VNF resource change message And the running status of the described VNF carried in described VNF resource change message, adjust described VNF The business datum of upper operation.So, when needs perform scaling operation to VNF, except realizing in resource Outside virtual resource on layer is flexible, business state information is belonged to and has the business state information of Status Type VNF for, synchronously complete and operate in the migration operation of business datum on this VNF, operation is effectively ensured The seriality that business performs on this VNF.

The schematic flow sheet of the telescopic method of a kind of virtual network function that Fig. 2 provides for the embodiment of the present invention. Described telescopic method belongs to same inventive concept, with stretching described in Fig. 1 with the telescopic method described in Fig. 1 The difference of compression method is: the executive agent of Fig. 2 is VNFM.

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

It should be noted that the implementation of the step 101 shown in the implementation of step 201 and Fig. 1 Identical, the most no longer repeat.

Step 202: when completing the scaling operation of the virtual resource of VNF at resource layer, VNFM obtains Take the business state information of described VNF.

In step 202., when resource layer completes the scaling operation of the virtual resource of VNF, VNFM Inquire about the business state information of described VNF.

Step 203: if it is determined that the business state information of the described VNF obtained belongs to the business having Status Type During status information, VNFM inquires about the running status of described VNF, and the fortune of described VNF that will inquire Row state is carried and is sent to Service Control Unit in VNF resource change message.

In step 203, VNFM records VNFR by inquiring about VNF corresponding for described VNF, determines The running status of described VNF.

VNFM obtains the address of Service Control Unit from service managing server, and according to described address, The running status of described VNF is carried in VNF resource change message, is sent to described Service control list Unit.

Service Control Unit, when business reorganization completes, sends business migration completion message to VNFM, this Time, VNFM sends VNF scaling operation completion message to EMS and NFVO, it is meant that to VNF's Scaling operation completes.

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

Wherein, described parameter configuration message is used for indicating described Service Control Unit is described VNFC configuration VNF parameter, and the business state information of described VNFC is sent to service managing server.

Now, Service Control Unit is according to the described parameter configuration message received, for this VNF configuration ginseng Number, and it is (English: StateStoredAddress) that the business state information of VNF links to state storage address.

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

The schematic flow sheet of the telescopic method of a kind of virtual network function that Fig. 3 provides for the embodiment of the present invention. Described method can be as described below.Flexible object described in Fig. 3 is a VNF example in VNF.

It should be noted that owing to can decompose inside VNF, a VNF is by multiple virtual deployment Unit is (English: Virtual Deployment Unit；Abbreviation: VDU) composition, VDU passes through virtual chain Road is (English: Virtual Link；Abbreviation: VL) connect, VDU correspondence VNFC.VDU defines one The contextual information of VNFC operation, i.e. one VNFC how instantiation, disposes, manages and termination etc..

Comprising the business state information for describing VNFC in the characterising parameter of VNFC, this service condition is believed Breath is used for describing this VNFC whether based on business, i.e. the scaling operation to the virtual resource of described VNFC Whether complete based on business.

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

It should be noted that the specific implementation of the scaling operation in step 301 VNFC carried out With step 101 carries out the specific implementation approximation of scaling operation for VNF, difference is flexible behaviour The object made is different.

Step 302: as the flexible behaviour of the virtual resource completed at resource layer the VNFC in described VNF When making, obtain the business state information of described VNFC in described VNF.

Step 303: if it is determined that the business state information of the described VNFC in the described VNF obtained belongs to When having the business state information of Status Type, inquire about the running status of described VNFC in described VNF, And the running status of the described VNFC in the described VNF that will inquire carry VNFC resource change disappear Breath is sent to Service Control Unit.

Described VNFC resource change message is used for indicating described Service Control Unit to provide according to described VNFC The described VNFC's carried in the change type of source change message and described VNFC resource change message Running status, adjusts the business datum run on described VNFC.

Step 304: if it is determined that the business state information of the described VNFC in the described VNF obtained belongs to During the business state information of externalized state type, send parameter configuration message to described Service Control Unit.

Such as: in NFV environment, disposing fee payment service, the network element comprised has strategy and charging regulation merit Can unit (English: Policy and Charging Rules Function；PCRF), online charging abbreviation: System is (English: Online Charging System；Abbreviation: OCS) and flow detection function (English: Traffic Detection Function；Abbreviation: TDF) etc..As shown in Fig. 4 (a), in NFV environment The structural representation of each network element.

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

As shown in Fig. 4 (b), for the relation structure diagram of VNF example corresponding in different network elements.

Assume that the session service of user 1 is by VNF11 example corresponding for PCRF, the VNF21 that TDF is corresponding Example and VNF31 example corresponding to OCS are its service；

The session service of user 2 is by VNF12 example corresponding for PCRF, VNF22 example corresponding for TDF And VNF32 example corresponding to OCS is its service；

The session service of user 3 is by VNF12 example corresponding for PCRF, VNF23 example corresponding for TDF And VNF33 example corresponding to OCS is its service.

In same network element, annexation and running status between different VNF examples are stored in NFVO VNFR and VNFFG in.

According to service needed, determine the quantity reducing the VNF example run, now send receipts to VNFM Contracting VNF asks, and VNFM shrinks the effectiveness of VNF request to NFVO checking, determines TDF's Three VNF examples are reduced to two VNF examples, i.e. reduce VNF23 example corresponding to TDF, and hang Play the VM that VNF23 example is corresponding.

The VNFM of TDF inquires about VNFD, determines the business state information of VNF example corresponding for TDF Belong to the business state information having Status Type, need to carry out business when performing and shrinking VNF request and be correlated with Process.Now, NFVO, by inquiry VNFR and VNFFG, obtains the running status of VNF23 example, And the running status of VNF23 example carried in VNF resource change request message, be sent to Service control Unit.

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

Now, Service Control Unit performs business datum migration between VNF23 example and VNF21 example Operation, i.e. migrates to the session data of user 3 on VNF21 example, real to be maintained at minimizing VNF23 When example is run, the session service of user 3 continuously carries out.

Service Control Unit, after migration completes, sends business datum to NFVO and migrates completion message；NFVO When receiving business datum and migrating completion message, revise VNFFG, notice VM and discharge VNF23 example Shared virtual resource, simultaneously amendment resource and the mapping table of business.

The most such as: illustrate as a example by TDF.4 VNFC:TDF are contained inside TDF-NFV NE management assembly, TDF load balancing assembly, TDF-C assembly and TDF-P assembly.

Wherein, TDF-C assembly represents the control function of TDF, including performing and billing parameter control, from Each application delivery that each PCRF receives controls (English: Application Detection and Control；Abbreviation: ADC) rule and the charging related needs from OCS reception.

TDF-P assembly represents the process function of TDF, is used for realizing TDF VNF network service chart, when When TDF VNF is as a service chaining node, grasp accordingly according to the rule that TDF-C assembly receives Make.

TDF load balancing assembly is for carrying out load balancing to the business run on multiple TDF-C assemblies.

When the portfolio of current TDF-C is bigger, need to increase a new TDF-C corresponding VNF example, is that newly-increased VNF example prepares virtual resource according to current technology scheme, and creates fortune The VM of row.When completing the operation of the establishment to new VNF example at resource layer, VNFM is according to VNFD The description of middle VNFC, it is judged that whether the business state information of new VNF example belongs to Status Type Business state information, belongs at the business state information that judged result is new VNF example and has Status Type Business state information time, obtain the running status of other VNF examples corresponding to TDF-C, and trigger industry Business control unit performs business migration, to realize running the equal of business on the corresponding all VNF examples of TDF-C Weighing apparatus.

The schematic flow sheet of the telescopic method of a kind of virtual network function that Fig. 5 provides for the embodiment of the present invention. Described telescopic method can be as described below.Service Control Unit (English: Service Control Unit), use In the business of VNF is controlled, the data of operation layer are disposed and adjusted.

Step 501: Service Control Unit receives network function virtualization composer NFVO/ virtual network function The VNF resource change message that manager VNFM sends.

Wherein, comprising the running status of VNF in described VNF resource change message, described VNF is in money Active layer completes the scaling operation of virtual resource, and the business state information of described VNF belongs to and has Status Type Business state information, described VNF resource change message be used for indicating described Service Control Unit according to institute State the running status of the described VNF carried in VNF resource change message, adjust and run on described VNF Business datum.

Step 502: described Service Control Unit according to described VNF resource change message change type and The running status of the described VNF carried in described VNF resource change message, adjusts and transports on described VNF The business datum of row.

In step 502, if the change type of described VNF resource change message is for belonging to described VNF money Source stretch message, the most described Service Control Unit according to described VNF resource change message in carry described in The running status of VNF, according to load balancing principle, enters the business datum run on described VNF Row migrates.

The structural representation of the telescopic equipment of a kind of virtual network function that Fig. 6 provides for the embodiment of the present invention. Described equipment includes: acquiring unit 61 and query unit 62, wherein:

Acquiring unit 61, for when completing stretching of the virtual resource to virtual network function VNF at resource layer During contracting operation, obtaining the business state information of described VNF, wherein, described business state information comprises genus In stateless type business state information, belong to and have the business state information of Status Type, belong to outside shape At least one in the business state information of state type；

Query unit 62, for if it is determined that the business state information of the described VNF obtained belongs to state class During the business state information of type, inquire about the running status of described VNF, and by the described VNF's that inquires Running status is carried and is sent to Service Control Unit in VNF resource change message, wherein, and described VNF Resource change message is for indicating described Service Control Unit according to the change of described VNF resource change message The running status of the described VNF carried in type and described VNF resource change message, adjusts described The business datum of the upper operation of VNF.

Specifically, described acquiring unit 61, specifically for describing in VNFD from the VNF of described VNF Inquiry obtains the business state information of described VNF, and wherein, described business state information is for describing institute Whether the scaling operation of the virtual resource stating VNF completes based on business, described in belong to the industry of stateless type Business status information is not based on business for description to the scaling operation of the virtual resource of described VNF and completes, institute State the flexible behaviour belonging to the business state information having Status Type for describing the virtual resource to described VNF Make to complete based on business.

Specifically, described query unit 62, specifically for the VNF record corresponding by inquiring about described VNF VNFR and/or VNF forwards figure VNF-FG, determines the running status of described VNF, wherein, described Possess between the running status that the running status of VNF comprises described VNF example and described VNF and associate At least one in the running status of the VNF example of system；

Specifically, described acquiring unit 61, if the scaling operation specifically for the virtual resource to VNF is Scaling operation to the virtual resource of a VNF assembly VNFC in described VNF, obtains described VNF In the business state information of described VNFC.

Specifically, described query unit 62, specifically for if it is determined that obtain described VNF in described in When the business state information of VNFC belongs to the business state information having Status Type, inquire about in described VNF The running status of described VNFC, and the operation shape of the described VNFC in the described VNF that will inquire State is carried and is sent to Service Control Unit in VNFC resource change message, and described VNFC resource changes Message for indicate described Service Control Unit according to described VNFC resource change message change type with And the running status of the described VNFC carried in described VNFC resource change message, adjust described VNFC The business datum of upper operation.

Alternatively, described telescopic equipment also includes: transmitting element 63, wherein:

Transmitting element 63, for if it is determined that obtain described VNF in described VNFC service condition letter When breath belongs to the business state information of externalized state type, send parameter configuration to described Service Control Unit Message, wherein, it is described VNFC configuration that described parameter configuration message is used for indicating described Service Control Unit VNF parameter, and the business state information of described VNFC is sent to service managing server.

It should be noted that the telescopic equipment described in the embodiment of the present invention can be realized by software mode, also Can be realized by hardware mode, not limit.

The structure of the telescopic equipment of a kind of virtual network function VNF that Fig. 7 provides for the embodiment of the present invention is shown It is intended to.Described telescopic equipment includes: receive unit 71 and telescopic unit 72, wherein:

Receive unit 71, be used for receiving network function virtualization composer NFVO/ virtual network function management The VNF resource change message that device VNFM sends, wherein, comprises in described VNF resource change message The running status of VNF, described VNF completes the scaling operation of virtual resource, and described VNF at resource layer Business state information belong to the business state information having Status Type, described VNF resource change message is used In indicating the described Service Control Unit fortune according to the described VNF carried in described VNF resource change message Row state, adjusts the business datum run on described VNF；

Telescopic unit 72, for the change type according to described VNF resource change message and described VNF The running status of the described VNF carried in resource change message, adjusts the business number run on described VNF According to.

Specifically, described telescopic unit 72, if specifically for the change class of described VNF resource change message Type stretches message for belonging to described VNF resource, and the most described Service Control Unit becomes according to described VNF resource The running status of the described VNF carried in more message, according to load balancing principle, to described VNF The business datum of upper operation migrates.

Specifically, described telescopic unit 72, if specifically for the change class of described VNF resource change message Type shrinks message for belonging to described VNF resource, and the most described Service Control Unit becomes according to described VNF resource The running status of the described VNF carried in more message, will transport on the described VNF before execution shrinkage operation The business datum of row migrates to perform to run on the described VNF after shrinkage operation.

The structure of the telescopic equipment of a kind of virtual network function VNF that Fig. 8 provides for the embodiment of the present invention is shown It is intended to.Described telescopic equipment can be realized by computer architecture.Such as: described telescopic equipment includes: letter Number receptor 81 and processor 82, led to by bus 83 between signal receiver 81 and processor 82 Letter, wherein:

Signal receiver 81, for when completing the virtual resource to virtual network function VNF at resource layer During scaling operation, obtaining the business state information of described VNF, wherein, described business state information comprises Belong to the business state information of stateless type, belong to and have the business state information of Status Type, belong to outside At least one in the business state information of Status Type；

Processor 82, for if it is determined that the business state information of the described VNF obtained belongs to Status Type Business state information time, inquire about the running status of described VNF, and the fortune of described VNF that will inquire Row state is carried and is sent to Service Control Unit in VNF resource change message, and wherein, described VNF provides Change message in source is for indicating described Service Control Unit according to the change class of described VNF resource change message The running status of the described VNF carried in type and described VNF resource change message, adjusts described VNF The business datum of upper operation.

Described signal receiver 81 obtains the business state information of described VNF, including:

The running status of described VNF inquired about by described processor 82, and the fortune of described VNF that will inquire Row state is carried and is sent to Service Control Unit in VNF resource change message, including:

Alternatively, if the scaling operation to the virtual resource of VNF is to a VNF in described VNF The scaling operation of the virtual resource of assembly VNFC, the most described signal receiver 81 obtains the industry of described VNF Business status information, including:

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

Alternatively, however, it is determined that the business state information of the described VNF of acquisition belongs to the business having Status Type During status information, the running status of described VNF inquired about by described processor 82, and described in inquiring The running status of VNF is carried and is sent to Service Control Unit in VNF resource change message, including:

Alternatively, described telescopic equipment also includes: signal projector 84, wherein:

Described signal projector 84, specifically for if it is determined that described VNFC in the described VNF that obtains When business state information belongs to the business state information of externalized state type, send out to described Service Control Unit Sending parameter configuration message, wherein, it is described that described parameter configuration message is used for indicating described Service Control Unit VNFC configures VNF parameter, and the business state information of described VNFC is sent to operational control service Device.

Wherein, processor 82 can be a general central processor (CPU), microprocessor, specific should With integrated circuit (application-specific integrated circuit, ASIC), or one or more for Control the integrated circuit that the present invention program program performs.

The structure of the telescopic equipment of a kind of virtual network function VNF that Fig. 9 provides for the embodiment of the present invention is shown It is intended to.Described telescopic equipment can be realized by computer architecture.Such as: described telescopic equipment includes: letter Number receptor 91 and processor 92, signal receiver 91 and processor 92 are communicated by bus 93, Wherein:

Signal receiver 91, is used for receiving network function virtualization composer NFVO/ virtual network function pipe The VNF resource change message that reason device VNFM sends, wherein, wraps in described VNF resource change message Running status containing VNF, described VNF completes the scaling operation of virtual resource at resource layer, and described The business state information of VNF belongs to the business state information having Status Type, and the change of described VNF resource disappears Breath is for indicating described Service Control Unit according to the described VNF carried in described VNF resource change message Running status, adjust on described VNF run business datum；

Processor 92, for the change type according to described VNF resource change message and described VNF The running status of the described VNF carried in resource change message, adjusts the business number run on described VNF According to.

Specifically, described processor 92 is according to the described VNF resource change change type of message and described The running status of the described VNF carried in VNF resource change message, adjusts the industry run on described VNF Business data, including:

Wherein, processor 92 can be a general central processor (CPU), microprocessor, specific should With integrated circuit (application-specific integrated circuit, ASIC), or one or more for Control the integrated circuit that the present invention program program performs.

It will be understood by those skilled in the art that embodiments of the invention can be provided as method, device (equipment), Or computer program.Therefore, the present invention can use complete hardware embodiment, complete software implementation, Or combine the form of embodiment in terms of software and hardware.And, the present invention can use one or more its In include the computer-usable storage medium of computer usable program code and (include but not limited to disk storage Device, CD-ROM, optical memory etc.) form of the upper computer program implemented.

The present invention is with reference to method, device (equipment) and computer program according to embodiments of the present invention Flow chart and/or block diagram describe.It should be understood that can by computer program instructions flowchart and/or Flow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or square frame In conjunction with.These computer program instructions can be provided to general purpose computer, special-purpose computer, Embedded Processor Or the processor of other programmable data processing device is to produce a machine so that by computer or other The instruction that the processor of programmable data processing device performs produce for realizing in one flow process of flow chart or The device of the function specified in multiple flow processs and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart The function specified in flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, makes Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know base This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.

Claims

1. the telescopic method of virtual network function VNF, it is characterised in that including:

2. telescopic method as claimed in claim 1, it is characterised in that obtain the business shape of described VNF State information, including:

3. telescopic method as claimed in claim 1 or 2, it is characterised in that inquire about the fortune of described VNF Row state, and the running status of the described VNF inquired is carried transmission in VNF resource change message To Service Control Unit, including:

4. the telescopic method as described in any one of claims 1 to 3, it is characterised in that if to VNF's The scaling operation of virtual resource is stretching of the virtual resource to a VNF assembly VNFC in described VNF Contracting operation, then obtain the business state information of described VNF, including:

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

5. telescopic method as claimed in claim 4, it is characterised in that if it is determined that the described VNF obtained Business state information when belonging to the business state information having Status Type, inquire about the operation shape of described VNF State, and the running status of the described VNF inquired is carried VNF resource change message in be sent to industry Business control unit, including:

6. telescopic method as claimed in claim 5, it is characterised in that described method also includes:

7. the telescopic method of virtual network function VNF, it is characterised in that including:

8. telescopic method as described in claim 7, it is characterised in that described Service Control Unit root Change type and described VNF resource according to described VNF resource change message change the institute carried in message State the running status of VNF, adjust the business datum run on described VNF, including:

9. telescopic method as described in claim 7, it is characterised in that described Service Control Unit root Change type and described VNF resource according to described VNF resource change message change the institute carried in message State the running status of VNF, adjust the business datum run on described VNF, including:

10. the telescopic equipment of virtual network function VNF, it is characterised in that including:

11. telescopic equipments as claimed in claim 10, it is characterised in that

Described acquiring unit, obtains described specifically for describing inquiry in VNFD from the VNF of described VNF The business state information of VNF, wherein, described business state information is for describing virtual to described VNF Whether the scaling operation of resource completes based on business, described in belong to the business state information of stateless type for Describe and the scaling operation of the virtual resource of described VNF is not based on business completes, described in belong to and have state class The business state information of type completes based on business for describing the scaling operation to the virtual resource of described VNF.

12. telescopic equipments as described in claim 10 or 11, it is characterised in that

Described query unit, specifically for by inquire about described VNF corresponding VNF record VNFR and/ Or VNF forwards figure VNF-FG, determine the running status of described VNF, wherein, the fortune of described VNF The VNF of incidence relation is possessed between running status and described VNF that row state comprises described VNF example At least one in the running status of example；

13. telescopic equipments as described in any one of claim 10 to 12, it is characterised in that

Described acquiring unit, if the scaling operation specifically for the virtual resource to VNF is to described VNF In the scaling operation of virtual resource of a VNF assembly VNFC, obtain in described VNF is described The business state information of VNFC.

14. telescopic equipments as claimed in claim 13, it is characterised in that

Described query unit, specifically for if it is determined that the business of described VNFC in the described VNF that obtains When status information belongs to the business state information having Status Type, inquire about the described VNFC in described VNF Running status, and the running status of the described VNFC in the described VNF that will inquire carries at VNFC Being sent to Service Control Unit in resource change message, described VNFC resource change message is used for indicating described Service Control Unit changes the change type of message and described VNFC resource according to described VNFC resource The running status of the described VNFC carried in change message, adjusts the business number run on described VNFC According to.

15. telescopic equipments as claimed in claim 14, it is characterised in that described telescopic equipment also includes: Transmitting element, wherein:

Transmitting element, for if it is determined that the business state information of described VNFC in the described VNF that obtains When belonging to the business state information of externalized state type, send parameter configuration to described Service Control Unit and disappear Breath, wherein, it is described VNFC configuration that described parameter configuration message is used for indicating described Service Control Unit VNF parameter, and the business state information of described VNFC is sent to service managing server.

The telescopic equipment of 16. 1 kinds of virtual network function VNF, it is characterised in that including:

17. telescopic equipments as claimed in claim 16, it is characterised in that

Described telescopic unit, if changing the change type of message for belonging to specifically for described VNF resource Stating VNF resource and stretch message, the most described Service Control Unit is taken according in described VNF resource change message The running status of the described VNF of band, according to load balancing principle, to the industry run on described VNF Business data migrate.

18. telescopic equipments as described in claim 16, it is characterised in that