CN108024256A

CN108024256A - A kind of methods, devices and systems for shrinking network section example

Info

Publication number: CN108024256A
Application number: CN201610974261.2A
Authority: CN
Inventors: 陆伟; 杨水根; 孙文琦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-11-03
Filing date: 2016-11-03
Publication date: 2018-05-11
Anticipated expiration: 2036-11-03
Also published as: WO2018082545A1; CN108024256B

Abstract

The embodiment of the invention discloses a kind of method for shrinking network section example NSI, this method includes：First network section management sends network function shrink request message with composer NSM＆O to management equipment, wherein, the first NSM＆O is used to be managed NSI and layout, the management equipment are used for the network function to be shunk of management objectives NSI；Received from the management equipment and shrink feedback message；The information of the target NSI stored in device is updated storage according to the contraction feedback message.The method of the contraction NSI provided according to embodiments of the present invention, layout management can be carried out to physics and virtual network function/resource at the same time and realize that network is cut into slices, shorten network deployment time, save lower deployment cost, and when shrinking NSI, by being handled differently universal network function and privately-owned network function, avoid influencing the service that other section examples are providing when shrinking universal network function.

Description

A kind of methods, devices and systems for shrinking network section example

Technical field

The present embodiments relate to the communications field, more particularly to a kind of method, apparatus for shrinking network section example and it is System.

Background technology

With the high speed development of mobile communication, digitlization transition almost relate to all traditional industries.But legacy cellular The network architecture can only provide unified network service, it is difficult to meet that the otherness brought of digitlization transition tide greatly communicates need Ask, including functional aberrancy, performance difference.In next generation mobile networks, network will be conceptualized as " network section (Network Slice)”。

Although network function virtualization is to reduce network section implementation complexity and the Key Enabling Techniques of cost, go out In reduction lower deployment cost and the purpose recouped capital outlay, the network element of physical NE and virtualization is formed long-term co-existence and flexibly jointly Network is cut into slices.Therefore, be communication need quick, that differentiation is neatly provided, operator need one can manage at the same time and Layout physical network function (Physical Network Function, PNF) and virtual network function (Virtualized Network Function, VNF) automation section operational system, can realize to physics and virtual network function/resource Carry out layout management and realize that network is cut into slices.

Currently, the network work(in layout (Management and Orchestration, MANO) framework is either managed Composer (Network Function Virtualization Orchestrator, NFVO) can be virtualized or the third generation closes Make the network manager (Network in Partnership Program (3rd Generation Partnership Project, 3GPP) framework Manager, NM) all network, which is cut into slices, can not be realized to physics and virtual network function/resource progress layout management at the same time.

The content of the invention

In view of this, an embodiment of the present invention provides one kind to shrink network section example (Network Slice Instance, NSI) methods, devices and systems, NSI is managed by the newly-designed network architecture, can at the same time to thing Reason and virtual network function/resource carry out layout management and realize that network is cut into slices, and shorten network deployment time, save deployment Cost.And when shrinking NSI, by being handled differently universal network function and privately-owned network function, avoid shrinking general network The service that other section examples are providing is influenced during network function.

On the one hand, there is provided a kind of method of contraction NSI, this method include：First network section management and composer NSM＆O sends network function shrink request message to management equipment, wherein, the first NSM＆O is used for example of cutting into slices to network NSI is managed and layout, and the management equipment is used for the network function to be shunk of management objectives NSI, the network function Shrink request message is used to ask the management equipment to carry out shrink process to the network function；First NSM＆O is from institute State management equipment and receive and shrink feedback message, the feedback message that shrinks is used for the management equipment feedback network function The result of shrink process；First NSM＆O updates storage the target NSI stored in device according to the contraction feedback message Information.

Therefore, the method for contraction NSI provided in an embodiment of the present invention, pipe is carried out by the newly-designed network architecture to NSI Reason, can carry out layout management to physics and virtual network function/resource at the same time and realize that network is cut into slices, shorten network deployment Time, saves lower deployment cost.And when shrinking NSI, by being handled differently universal network function and privately-owned network function, keep away Exempt to influence the service that other section examples are providing when shrinking universal network function.

Alternatively, the method specifically includes：First NSM＆O is the special of the target NSI in the network function When belonging to network function, the network function shrink request message is sent to the management equipment；Or the first NSM＆O is in institute It is the target NSI and the shared network function for associating NSI to state network function, and the contraction network function does not influence the pass When joining the service of NSI, the network function shrink request message is sent to the management equipment, wherein, the association NSI be with The target NSI is used in conjunction with the NSI of the network function.

The method of contraction NSI provided in an embodiment of the present invention, before network function shrink request message is sent, to shared Network function and privately-owned network function use different pretreatment modes, make contraction will not be to sharing the work(when sharing network function The service that other NSI of energy are provided has a negative impact, in addition, if there is shared network function between multiple NSI, only needs to receive The shared network function to contract in one of NSI, i.e., shunk multiple NSI at the same time, reduced the maintenance time and cost of system.

Alternatively, before the first NSM＆O sends network function shrink request message to management equipment, the method is also Including：First NSM＆O obtains NSI shrink request message, wherein, the NSI shrink requests message includes the target NSI Identification information, the NSI shrink requests message be used for ask the first NSM＆O to the target NSI carry out shrink process； First NSM＆O determines the network section template NSLD of the target NSI according to the identification information；First NSM＆O The network function is determined according to the NSLD.

The method of contraction NSI provided in an embodiment of the present invention, the first NSM＆O can be flexibly determined to mesh according to actual conditions Mark NSI and carry out shrink process.When operator or the network section example third party tenant for obtaining mandate find the performance of existing NSI NSI is shunk when superfluous on demand, or is shunk automatically according to strategy when the performance of NSI is superfluous, reduces O＆M cost.

Alternatively, after the first NSM＆O obtains NSI shrink request message, and the first NSM＆O is set to management Before preparation SCN Space Cable Network function shrink request message, the method further includes：First NSM＆O is sent to network manager NM Notification message, the notification message are used to notify the first NSM＆O described in the NM to need to carry out contraction place to the network function Reason；First NSM＆O receives confirmation message from the NM, and the confirmation message is used to indicate the first NSM＆O to described Network function carries out shrink process.

In the embodiment of the present invention, network management framework includes NM, and the network function that the first NSM＆O treats contraction is shunk The forward direction NM of processing sends a notification message, and the first NSM＆O of notice NM need to carry out the network function shrink process, and according to The confirmation message that NM is sent determines to carry out shrink process to the network function, so as to avoid NM and NSM＆O while Configuration network The conflict that function produces.

Alternatively, the first NSM＆O is received from the management equipment shrink feedback message after, and described first Before NSM＆O updates storage the information of the target NSI stored in device according to the feedback message, the method further includes： First NSM＆O sends resource allocation request message to virtualized infrastructure manager VIM, and the resource allocation request disappears Breath is used to ask the VIM to discharge the idling-resource after the network function is shunk；First NSM＆O is received from the VIM Resource allocation feedback message；First NSM＆O updates storage the target stored in device according to the contraction feedback message The information of NSI includes：First NSM＆O is according to the contraction feedback message and resource allocation feedback message renewal The information of the target NSI stored in memory.

The method of the contraction NSI provided according to embodiments of the present invention, the first NSM＆O please by sending resource allocation to VIM Ask message, the idling-resource after request VIM release VNF contractions, so as to improve resource utilization.

Alternatively, when the network function is shared network function, the method further includes：The first NSM＆O roots The information of the association NSI stored in the memory is updated according to the contraction feedback message, the association NSI is and the target NSI is used in conjunction with the NSI of the shared network function.So as to the synchronization of information in holding system.

Alternatively, the first NSM＆O obtains NSI shrink request message, including：First NSM＆O obtains second The NSI shrink requests message that NSM＆O is sent.

The method of contraction NSI provided in an embodiment of the present invention, is determined to target NSI by the NSM＆O with hierarchical structure Contraction, can be with flexible management multiple domain, the network of more vendor.

On the other hand, there is provided a kind of method of contraction NSI, this method include：Management equipment from network section management with Composer NSM＆O receives network function shrink request message, wherein, the management equipment is used for management objectives network section example The network function to be shunk of NSI, the NSM＆O is used to be managed network section example NSI and layout；The management is set It is standby that shrink process is carried out to the network function according to the network function shrink request message；The management equipment is to described NSM＆O, which is sent, shrinks feedback message, the result shunk feedback message and be used to feed back the shrink process of the network function.

The method of contraction NSI provided in an embodiment of the present invention, is managed NSI by the newly-designed network architecture, can Realize that network is cut into slices to carry out layout management to physics and virtual network function/resource at the same time, shorten network deployment time, Save lower deployment cost.And when shrinking NSI, by being handled differently universal network function and privately-owned network function, avoid The service that other section examples are providing is influenced when shrinking universal network function.

Alternatively, the management equipment includes virtual network function manager VNFM, and it is empty that the network function includes first Intend network function VNF examples, the management equipment carries out the network function according to the network function shrink request message Shrink process includes：The VNFM performs contraction according to the network function shrink request message to the first VNF examples can Row inspection；The VNFM shrinks the first VNF examples in the contraction feasibility passed examination.

The method of contraction NSI provided in an embodiment of the present invention, checks that the contraction of VNF examples to be shunk is feasible by VNFM Property, so that it is guaranteed that the shrink process of VNF examples can be executed correctly.

Alternatively, the management equipment includes NE Explorer EM, and the network function includes the 2nd VNF examples, described 2nd VNF examples are the VNF examples of network manager NM generations, when the network function request message is used to ask described in stopping During the service of the 2nd VNF examples, the service for shrinking feedback message for feeding back the 2nd VNF examples has been stopped.

The method of contraction NSI provided in an embodiment of the present invention, checks that the attribute of VNF examples to be shunk is true by NSM＆O Whether VNF examples surely to be shunk can be retracted, and mistake occurs when shrinking the VNF examples of NM generations so as to avoid NSM＆O By mistake.

Another further aspect, an embodiment of the present invention provides a kind of NSM＆O, which can realize side involved by above-mentioned aspect Function in method performed by NSM＆O, the function it is real can also to perform corresponding software by hardware realization by hardware It is existing.The hardware or software include the corresponding unit of one or more above-mentioned functions or module.

In a kind of possible design, the structure of the NSM＆O includes processor and communication interface, which is configured To support the NSM＆O to perform corresponding function in the above method.The communication interface is used to support between the NSM＆O and other network elements Communication.The NSM＆O can also include memory, which is used to couple with processor, it preserves the necessary journeys of the NSM＆O Sequence instruction and data.

Another further aspect, an embodiment of the present invention provides a kind of management equipment, which can realize above-mentioned aspect institute It is related in method the function performed by management equipment, the function can also perform phase by hardware realization by hardware The software answered is realized.The hardware or software include the corresponding unit of one or more above-mentioned functions or module.

In a kind of possible design, the structure of the management equipment includes processor and communication interface, the processor quilt It is configured to support the management equipment to perform corresponding function in the above method.The communication interface is used to support the management equipment and its Communication between its network element.The management equipment can also include memory, which is used to couple with processor, it is preserved should The necessary programmed instruction of management equipment and data.

In a possible design, above-mentioned management equipment can be NE Explorer EM, virtual network function manager VNFM or virtual network function composer NFVO.

Another further aspect, an embodiment of the present invention provides a kind of communication system, which includes the NSM＆O described in above-mentioned aspect And management equipment.

Another further aspect, an embodiment of the present invention provides a kind of computer-readable storage medium, for saving as used in above-mentioned NSM＆O Computer software instructions, it includes for performing the program designed by above-mentioned aspect.

Another further aspect, an embodiment of the present invention provides a kind of computer-readable storage medium, for saving as above-mentioned management equipment Computer software instructions used, it includes for performing the program designed by above-mentioned aspect.

Compared with the prior art, the methods, devices and systems of the contraction NSI provided according to embodiments of the present invention, by new The network architecture of design is managed NSI, and it is real can to carry out layout management to physics and virtual network function/resource at the same time Existing network section, shortens network deployment time, saves lower deployment cost.It is and general by being handled differently when shrinking NSI Network function and privately-owned network function, avoid influencing the clothes that other section examples are providing when shrinking universal network function Business.

Brief description of the drawings

Fig. 1 is the schematic diagram of network management framework of the prior art；

Fig. 2 is the configuration diagram of NSM＆O of the embodiment of the present invention；

Fig. 3 is a kind of schematic diagram of network management framework of application of the embodiment of the present invention；

Fig. 4 is the schematic diagram of another network management framework of application of the embodiment of the present invention；

Fig. 5 is the schematic diagram of another network management framework of application of the embodiment of the present invention；

Fig. 6 is the schematic diagram of another network management framework of application of the embodiment of the present invention；

Fig. 7 is a kind of indicative flowchart of the method for contraction NSI provided in an embodiment of the present invention；

Fig. 8 is a kind of schematic architectural diagram of the NSM＆O with hierarchical structure provided in an embodiment of the present invention；

Fig. 9 is a kind of the schematic of the method for the contraction NSI of NSM＆O with hierarchical structure provided in an embodiment of the present invention Flow chart；

Figure 10 is the indicative flowchart of another method for shrinking NSI provided in an embodiment of the present invention；

Figure 11 is the indicative flowchart of the method for another contraction NSI provided in an embodiment of the present invention；

Figure 12 is the indicative flowchart of the method for another contraction NSI provided in an embodiment of the present invention；

Figure 13 is the indicative flowchart of the method for another contraction NSI provided in an embodiment of the present invention；

Figure 14 is the indicative flowchart of the method for another contraction NSI provided in an embodiment of the present invention；

Figure 15 A are a kind of structure diagram of possible NSM＆O provided in an embodiment of the present invention；

Figure 15 B are the structure diagram of alternatively possible NSM＆O provided in an embodiment of the present invention；

Figure 16 A are a kind of structure diagram of possible management equipment provided in an embodiment of the present invention；

Figure 16 B are the structure diagram of alternatively possible management equipment provided in an embodiment of the present invention.

Embodiment

The present embodiments relate to network microtomy.Network microtomy be network is logically abstracted as one or The multiple mutually isolated network sections of person, wherein the section of each network includes a series of logical network function, it is pointedly full The differentiated demand of sufficient different service types.Such as (The 5th Generation, are referred to as in the 5th third-generation mobile communication " 5G ") in network, network section is a kind of mode of networking on demand, and being brought for operator can be according to continually changing user demand It is adjusted, and quickly meets the new demand servicing of new application demand.

5G network physical infrastructures resource is abstracted as multiple mutually independent by network microtomy according to scene demand Parallel NSI.Each NSI carries out customization cutting and the corresponding network of network function according to the needs and business model of business scenario The layout management of function.One NSI can be considered as the 5G networks of an instantiation.Such network structure allows operator by net Network is supplied to user as a kind of service, and according to speed, capacity, spreadability, delay, reliability, security and can use Physical network is freely combined in the indexs such as property, so as to meet the requirement of different user.

In network microtomy, need to carry out contraction place to NSI when the performance of operator or tenant's discovery NSI is superfluous Reason.Shrink NSI to be related to configuring PNF, discharge the resources such as the calculating, storage, network of VNF and termination VNF etc..

To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical solution in the embodiment of the present invention is described.

The network architecture and business scenario of description of the embodiment of the present invention are in order to which more clearly the explanation present invention is implemented The technical solution of example, does not form the restriction to technical solution provided in an embodiment of the present invention, those of ordinary skill in the art can Know, with the differentiation of the network architecture and the appearance of new business scene, technical solution provided in an embodiment of the present invention is for similar Technical problem, it is equally applicable.

It should be noted that term " network management framework " " network system " herein, " system " etc. can replace mutually Change.In addition, for convenience, term " VNF examples " can also be replaced mutually with " VNF ", its concrete meaning should be by the term The implication of residing sentence is determined, and should not be construed as the restriction to the embodiment of the present invention.In order to make it easy to understand, first introduce this Some terms occurred in text.

Network is cut into slices：It is to describe a kind of concept of system action, which is realized by NSI.

Network section template (Network Slice Descriptor, NSLD)：For describing the composition member of network section Element (such as：Network function, resource requirement etc.) and its relation (such as：Network function organizational structure, network function/resource distribution And workflow between network function etc.).It is to be understood that NSLD is defined to describe the features described above of network section One concept, and the limitation to the scope of application of the embodiment of the present invention is should not be construed as, it is other to be used to describe network section The concept for stating feature is suitable for the embodiment of the present invention.

NSI：For the example realized the function of network section and created, can be created according to NSLD, can also root Created according to other manner, NSI can meet different communication requirements, for example, MBB (Mobile Broadband, mobile broadband) Network section, extensive (Massive) MTC (Machine Type Communication, machine type communication) network section With key (Critical) MTC networks section etc..

Network function：It is a kind of processing function in network, defines functional behavior and interface, network function can be with As a specialized hardware, runs software can also be realized on a specialized hardware, can also be in general hardware platform On in the form of virtual functions realize.Therefore, from the angle of realization, network function can be divided into PNF and VNF.And from use Angle, network function can be divided into privately-owned network function and shared network function, specifically, cut into slices example for multiple networks For, different network functions can be used independently, this network function is known as privately-owned network function, can also share same A network function, this network function are known as shared network function.

For the ease of understanding the embodiment of the present invention, network management framework of the prior art is introduced first.Fig. 1 shows existing There is a kind of network management framework 100 in technology.As an example, the network management framework 100 of Fig. 1 can be fusion 3GPP public land mobile networks (Public Land Mobile Network, PLMN) network management framework of MANO frameworks. Specifically, network management framework 100 contains the module of management PNF and the module of management VNF at the same time.Net is introduced in turn below Module in network management framework 100.

PNF：It is that a physical equipment provides fixed network function.For example, physical network function module can be tradition 3GPP network management frameworks in network element NE, that is to say, that a physical NE.For example, NE can be base station, mobile management Entity (Mobility management entity, MME) or gateway (Serving Gateway, referred to as " SGW ") Deng.

VNF：It can be the minimum virtual unit that can be monitored and manage in network management framework.VNF with it is described below Deposited between network function Virtual base facility (Network function virtualized infrastructure, NFVI) In communication interface.VNF modules can create virtual network function and do some parameter configurations, realize certain on the basis of NFVI One network function.

Network element (Network Element, NE)：It is the minimal physical list that can be monitored and manage in network management framework Position.For example, NE can be base station or mobile management entity (Mobility Management Entity, MME), NE can also Referred to as PNF modules.

NE Explorer (Element Manager, EM)：Mixed-media network modules mixed-media for managed network element.EM both can be used for pipe PNF modules are managed, can be used for management VNF.

Domain manager (Domain Manager, DM)：The management system module of range of management bigger level-one than EM.DM can To manage one or more EM, for example, DM can be the management system of manufacturer.

It should be noted that EM and DM are different in definition, EM is directly to manage the same type of network equipment, than Such as a series of base station of EM management, DM is that management one belongs to operator's (English：Vendor the network equipment), there is provided domain manages Function, range of management biggers of the DM than EM.Under normal conditions, EM equipment is used for the configuration for performing network function.But the present invention The possibility for the flow that DM is performed performed by EM is not excluded in embodiment.

NM：The management module of network level, mainly provides the related work(such as Network Management Function, exchange between management equipment Energy.For example, NM can be responsible for distribution, configuration, control and monitoring of Internet resources etc., NM provides support by EM or DM.

NFVI：There is provided whole system operation hardware and virtual resource, by hardware resource (including calculatings, network, store three Part), virtualization layer (hardware resource is virtualized into resource pool) and virtual resource (be again divided into calculating, network, storage three Point) composition.For the angle of VNF, virtualization layer and hardware resource look like one and are capable of providing required virtual resource Entity.

NFV-MANO(Network Functions Virtualization-Management and Orchestration, network function virtual management and layout) system module：It exists between NFVI, VNF, EM and NM Interface, for managing virtual network function in network level, contains following three modules：

NFVO：The life cycle management of network service, VNF are used for realization, and is provided from the orientation optimization network of the NFVI overall situations Source.

Virtual network function management module (Virtualized Network Function Manager, VNFM)：Existing VNF The life cycle management of example, including the initialization of VNF examples, the dilatation of VNF examples or the termination of capacity reducing and VNF examples..

Virtualized infrastructure manager (Virtualized Infrastructure Manager, VIM)：With NFVI, There are interface between VNF, management, monitoring and failure for infrastructure layer hardware resource and virtualization resource report, towards Upper layer application provides virtualization resource pond.

From the above-mentioned introduction to network management framework 100 of the prior art, network management frame of the prior art Although structure can be managed physical network function and virtual network function.But it can not carry out the pipe of network section Reason and layout.So network management framework of the prior art cannot meet the network microtomy application in future communication systems Demand, i.e., cannot neatly manage and layout network section.In the prior art, consider for reduction lower deployment cost etc., physics Network element and virtualization network element by long-term co-existence and flexibly form network and cut into slices.Therefore, it is necessary to a kind of Network Management System, Neng Goushi Now the network function to physics or Internet resources and virtual network function or Internet resources carry out layout and management, to realize The application of network section.

The central idea of the embodiment of the present invention is that network section management and composer are introduced in network management framework 100 (Network Slice Manager and Orchestrator, referred to as " NSM＆O "), and pass through contractions of the NSM＆O to NSI Process is managed, and to realize that the automation of NSI is shunk, improves the efficiency of management NSI.It is to be understood that NSM＆O is merely to description " realize the dress that layout and management are carried out to the network function or Internet resources of physics and virtual network function or Internet resources Put " and a concept of definition, and the limitation to the scope of application of the embodiment of the present invention is should not be construed as, it is other to be used to describe " realize the dress that layout and management are carried out to the network function or Internet resources of physics and virtual network function or Internet resources Put " concept be suitable for the embodiment of the present invention.

The network management framework of the embodiment of the present invention is introduced below.The embodiment of the present invention is in existing network management framework On the basis of 100, NSM＆O is introduced.Wherein the structure diagram of NSM＆O is as shown in Fig. 2, its major function includes：

Service conversion：By interface (for example, application programming interface (Application Programming Interface, API)) service description information that sending ending equipment is sent is received, and service description information is converted to network Demand.

Network section design：According to service conversion as a result, the composition that description network is cut into slices.For example, it may be design grid Network section template (Network Slice Descriptor, referred to as " NSLD ").

Network section management strategy：The management strategy of planned network section.For example, restocking (On-boarding), instantiation (Instantiation), contraction and dilatation (Scaling), renewal (Update), termination (Termination) and deletion (Deletion)。

Network section layout：For the specific network money for determining the network section example network function included and using Source.

Monitoring：For detecting and reporting the state parameter of network section example.For example, the example that can be cut into slices with monitoring network KPI Key Performance Indicator (Key Performance Indicators, KPI) parameter.

Above-mentioned sending ending equipment sending ending equipment is the equipment that request is sent to NSM＆O.For example, sending ending equipment can be The application or any other entity device that request may be sent to NSM＆O that operator, third party client, communication service are related to.

Alternatively, storage device can also be included in the network management framework in the embodiment of the present invention, storage device can be with For recording the information of the network generated section example.

Fig. 3 to Fig. 6 describes four kinds of network management frameworks of application of the embodiment of the present invention respectively.Four kinds of network management framves All include NSM＆O in structure.In order to facilitate differentiation, the network management framework of Fig. 3 to Fig. 6 is hereafter known as network management framework successively 200th, network management framework 300, network management framework 400 and network management framework 500.

Fig. 3 shows the network management framework 200 that the embodiment of the present invention is applied.As shown in figure 3, network management framework 200 be the network management framework for being strengthened and being changed on the basis of network management framework 100.Wherein, network management frame Structure 200 does not include NM, but the function of NM in network management framework 100 is performed by NSM＆O.In other words, NSM＆O is removed and is included figure Outside function shown in 2, the repertoire of NM can also be included.NSM＆O can be interacted by communication interface and EM, with reality Now to the management of the corresponding network functions of NSI.Wherein, the management to network function includes the management to PNF and to VNF.NSM&O The status information of VNF can also be received from NFVO by communication interface, and be sent and instructed to NFVO by communication interface.

For network management framework 200, NSM＆O can directly manage PNF, and NFVO can be utilized to realize the money to NFVI Source layout management and the generation for realizing VNF.

Fig. 4 shows another network management framework 300 that the embodiment of the present invention is applied.As shown in figure 4, network management frame Structure 300 is also the network management framework for being strengthened and being changed on the basis of network management framework 100.Wherein, network Management framework 300 and the difference of network management framework 200 are：The entity of NFVO is not included in network management framework 200. The function of NFVO is realized by NSM＆O.In other words, the function of NSM＆O further includes layout management and the VNF of virtual network resource Life cycle management.There are communication interface between NSM＆O and VNFM.In Fig. 4, which is properly termed as NG1 interfaces.NSM&O There are communication interface between VIM.In Fig. 4, which is properly termed as NG2 interfaces.

Wherein, NSM＆O can carry out following interact with VNFM by NG1 interfaces：The NFVI resources that support VNF is done are awarded Power, reserved, distribution and release etc.；Inquire about the information of run mode, such as VNF Query By Examples；VNF initialization renewal, scaling, termination Deng；Transmit the related events of VNF, status information etc..

NSM＆O can carry out following interact with VIM by NG2 interfaces：NFVI resource reservation, distribution, release etc.；VNF is soft Part image (image) increase, deletion, renewal etc.；Transmission is recorded with the relevant configuration informations of NFVI, event, measurement result, upgrading Deng.

For network management framework 300, NSM＆O can also give birth to VNF and VNF in addition to it directly can manage PNF The life cycle is managed.So as to uniformly manage with layout physics, virtual network resource and function, beneficial to from globalization Orientation optimization resource.

Fig. 5 shows another network management framework 400 that the embodiment of the present invention is applied.As shown in figure 5, in network management NM is remained in framework 400, NSM＆O is separate with NM.Also, there are communication interface between NSM＆O and NM.In Figure 5, should Communication interface is properly termed as NG3 interfaces.There is also communication interface between NSM＆O and NFVO.In Figure 5, which can be with Referred to as NG4 interfaces.There is also communication interface between NSM＆O and EM.In Figure 5, which is properly termed as NG5 interfaces.

Wherein, NSM＆O can carry out following interact with NM by NG3 interfaces：Transmit the negotiation letter between NSM＆O and NM Breath, such as the VNF that NSM＆O inquiries NM has been generated；The VNF information that NM has been generated to NSM＆O feedbacks, and confirm to allow NSM＆O to repair Change VNF information；Which PNF/VNF NSM＆O notices NM will modify；NSM＆O notice NM are repaiied for the specific of PNF/VNF Change content.

Following interact can be carried out between NSM＆O and NFVO by NG4 interfaces：NSM＆O participates in VNF's by NG4 interfaces Life cycle management, such as one notice NFVO generations, renewal, deletion VNF etc.；Fortune of the NSM＆O to NFVO inquiries VNF, NFVI Row information；Operation informations of the NFVO to NSM＆O feedbacks VNF, NFVI；Tactical management, NSM＆O can refer to NFVO sending strategys Go out the demand to VNF deployment；NSM＆O carries out VNF bags (package) management by NG4 interfaces.

Following interaction can be carried out between NSM＆O and EM by NG5 interfaces：NSM＆O is led to by NG5 interfaces with EM Letter, to manage PNF and VNF (if EM supports the management to VNF).

For network management framework 400, NSM＆O employ new communication interface and each entity module of the prior art into Row interaction.NSM＆O can pass through NFVO layouts and management virtual resource and the life cycle management NSM＆O and NM that participate in VNF PNF can directly be managed.And NSM＆O and NM can manage VNF by NFVO or EM.Therefore, for PNF's and VNF Management, can be coordinated between NSM＆O and NM by communication.

Fig. 6 shows another network management framework 500 that the embodiment of the present invention is applied.As shown in fig. 6, network management frame NM is also remained in structure 500.NSM＆O and NM is also mutually independent.500 and the 3rd network management framework of network management framework Difference is：The entity of NF is not included in network management framework 500.The function of NFVO modules is realized by NSM＆O.In other words Say, the function of NSM＆O further includes the layout management and VNF life cycle managements of virtual network resource.Wherein, NSM＆O with There are communication interface between VNFM.In figure 6, which is properly termed as NG1 interfaces.Exist between NSM＆O and VIM and communicate Interface.In figure 6, which is properly termed as NG2 interfaces.There are communication interface between NSM＆O and EM.In figure 6, this is logical Letter interface is properly termed as NG5 interfaces.Concrete function on NG1 interfaces, NG2 interfaces and NG5 interfaces may refer to Fig. 4 and figure The same or similar content in 5.For sake of simplicity, details are not described herein again.

For network management framework 500, NSM＆O employ new communication interface and each entity module of the prior art into Row interaction.NSM＆O can pass through the life cycle management of NFVO layouts and management virtual resource and participation VNF, NSM＆O and NM PNF can directly be managed.Therefore, for the management of PNF, can be coordinated between NSM＆O and NM by communication.And by The function of NFVO is incorporated in NSM＆O, so NSM＆O directly layout can also manage virtual network resource and participate in the life of VNF Order cycle management.NM cannot then manage virtual network resource and VNF.

It will be appreciated by those skilled in the art that the example of Fig. 3 to Fig. 6 is used for the purpose of helping skilled in the art to understand The embodiment of the present invention, and the embodiment of the present invention have to be limited to illustrated concrete numerical value or concrete scene.People in the art Member is according to the example of given Fig. 3 to Fig. 6, it is clear that can carry out various modifications or change of equal value, such modification or change Change is also fallen into the range of the embodiment of the present invention.

Additionally, it should be noted that each function module and unit of above-mentioned introducing, are from function possessed by them What angle considered.In practical application, above-mentioned each function module can be individually be physically present or two or two with Upper integration of equipments in a unit, those of ordinary skill in the art the invention discloses technical scope in, can readily occur in Various equivalent modifications or substitutions, these modifications or substitutions should be covered by the protection scope of the present invention.

Below in conjunction with network management framework 200 to network management framework 500, NSI provided in an embodiment of the present invention is received The method of contracting is described in detail.

The method that Fig. 7 shows a kind of contraction NSI provided in an embodiment of the present invention.As shown in fig. 7, this method 700 includes：

S710, the first NSM＆O send network function shrink request message to management equipment, wherein, the first NSM＆O is used In being managed to NSI and layout, the management equipment is used for the network function to be shunk of management objectives NSI, the network Function shrink request message is used to ask the management equipment to carry out shrink process to the network function.

S720, the first NSM＆O are received from the management equipment shrinks feedback message, and the contraction feedback message is used for The management equipment feeds back the result of the shrink process of the network function.

S730, the first NSM＆O update storage the target NSI's that is stored in device according to the contraction feedback message Information.

In the embodiment of the present invention, the first NSM＆O is used to be managed NSI (for example, target NSI) and layout, management are set Standby is the equipment of the network function to be shunk for management objectives NSI, which can be EM or VNFM, It can also be NFVO.It is to be understood that a network function may include multiple PNF or multiple VNF, therefore, to network function Contraction includes terminating PNF, contraction PNF, termination VNF and shrinks at least one of VNF processing method.In addition, NSI may include Multinomial network function, a network function for shrinking NSI can be referred to by shrinking NSI, can also refer to the multinomial network work(for shrinking NSI Energy.According to the difference of network function to be shunk, the content and sending object of network function shrink request message are also different.Under Face, respectively illustrates the above situation.

Situation 1

When the network function shunk is realized by PNF：

First NSM＆O sends network function shrink request to the management equipment EM of the PNF by corresponding communication interface and disappears Cease (hreinafter referred to as " the first request message ").Specifically, according to the attribute of the PNF and layout as a result, the first request message Content have following four kinds of situations：

If a) PNF is the PNF that multiple NSI share, and layout result (is such as deposited to configure the PNF using less resource Store up resource, the usage time of central processor CPU, network bandwidth etc.) service goal NSI with associate NSI, then the first request message Content for ask the PNF distribute less resource service goal NSI and association NSI, and adjust related operating parameter with strategy believe Breath etc..In embodiments of the present invention, it is the NSI that the network function is used in conjunction with the target NSI to associate NSI.

If b) PNF is the PNF that share of multiple NSI, and layout result is that to stop the PNF be target NSI and associate NSI Service is provided, then the content of the first NSM＆O to EM the first request messages sent includes but not limited to i) delete the related ginsengs of NSI Number, such as target NSI and the mark for associating NSI, NSI is monitored and is reported information etc.；Ii related operating parameter and policy information) are deleted Deng；Iii) close to other sharing functionalities or/and the exclusive functions of target NSI, the network connection for associating the exclusive functions of NSI etc..

If c) PNF is the exclusive PNF of target NSI, and layout result is serviced for the existing PNF of configuration using less resource Target NSI, then to the content of EM the first request messages sent, for request, the PNF distributes less resource service mesh to the first NSM＆O NSI is marked, and adjusts related operating parameter and policy information etc..

If d) PNF is the exclusive PNF of target NSI, and layout result provides service to stop the PNF for target NSI, Then the content of the first NSM＆O to EM the first request messages sent includes but not limited to i) delete NSI relevant parameters, such as target The mark of NSI, NSI are monitored and are reported information etc.；Ii operating parameter and policy information etc.) are deleted；Iii) delete shared to other The network connection such as function or/and the exclusive functions of target NSI.

EM according to the first request message completes that PNF is sent to the first NSM＆O with postponing and shrinks feedback message, to the One NSM＆O feeds back the result to the shrink process of PNF.

Situation 2

When network function to be shunk is realized by VNF, and the result of layout is the VNF that terminates, and the first NSM＆O and VNFM When can be with direct communication：

First NSM＆O sends the first request message, the content of first request message by corresponding communication interface to EM Including but not limited to stop monitoring the operating status of the VNF, VNF is deleted from the management object of EM.

After EM performs finalization process according to the first request message to the VNF, sent to the first NSM＆O and shrink feedback message, The contraction feedback message has terminated for feeding back the VNF to the first NSM＆O.After first NSM＆O receives the contraction feedback message Order EM nullifies/closes VNF virtual ports, stops service.

Then, the first NSM＆O sends the notification message for the VNF that terminates to VNFM, and the content of the notification message is included but not It is limited to the identity of the VNF, termination order.VNFM is according to the notification message and the VNF cooperation normal switching-offs VNF.

After the VNF is closed, VNFM sends feedback message (that is, shrinking feedback message), the feedback message to the first NSM＆O It has been terminated for feeding back the VNF.

Situation 3

When network function to be shunk is realized by VNF, and layout result is shrinks the VNF, and the first NSM＆O and VNFM can During with direct communication：

First NSM＆O by corresponding communication interface to VNFM send the first request message, first request message it is interior Hold the identity for including but not limited to VNF to be shunk, shrinkage parameters.

VNFM performs VNF according to first request message and shrinks feasibility inspection, including but not limited to verifies the first NSM＆O Whether qualified contraction VNF, check shrinkage parameters whether meet specification.

After VNFM is completed to the shrink process of VNF, feedback message (that is, shrinking feedback message) is sent to the first NSM＆O, The feedback message includes authorizing the information for starting the change of VNF life cycles (if shrinking feasibility passed examination), alternatively, should First request message further includes corrected parameter and shrinks the resource that VNF is related to.

First NSM＆O is adjusted by the VNF application parameters after EM adjustment contractions, such as perform function with operation reserve.

Situation 4

When network function to be shunk is realized by VNF, and the result of layout is the VNF that terminates, and the first NSM＆O and VNFM When being unable to direct communication：

Then, the first NSM＆O sends the notification message for the VNF that terminates to NFVO, and the content of the notification message is included but not It is limited to the identity, termination order, Configuration network connection request of the VNF.NFVO performs end according to the notification message to the VNF Knot processing.

After the VNF is terminated, NFVO sends feedback message (that is, shrinking feedback message), the feedback message to the first NSM＆O For feeding back, the VNF has been terminated and Configuration network connection has been completed.

Situation 5

When network function to be shunk is realized by VNF, and the result of layout is shrinks the VNF, and the first NSM＆O and VNFM When being unable to direct communication：

First NSM＆O by corresponding communication interface to NFVO send the first request message, first request message it is interior Hold the identity for including but not limited to VNF to be shunk, shrinkage parameters.

NFVO performs shrink process according to the first request message to the VNF, for example, order VNFM execution VNF contractions are feasible Property inspection, including but not limited to verify the whether qualified contraction VNF of the first NSM＆O, check shrinkage parameters whether meet specification.

After NFVO is completed to the shrink process of VNF, feedback message (that is, shrinking feedback message) is sent to the first NSM＆O, The feedback message includes authorizing the information for starting the change of VNF life cycles (if shrinking feasibility passed examination).

First NSM＆O is by the VNF application parameters after EM adjustment contractions, as perform function and operation reserve adjust.

Five kinds of situations for more than, the first NSM＆O, can be according to contractions after management equipment receives contraction feedback message Feedback message updates storage the information of the target NSI stored in device, for example, the VNF/PNF information of more fresh target NSI.

Above-described embodiment is merely illustrative of, not limited to this of the embodiment of the present invention, for example, above-described embodiment is first definite The receiving terminal of first request message, the content of the first request message, this hair are determined further according to the attribute of network function to be shunk Bright embodiment can also first determine the content of the first request message according to the attribute of network function to be shunk, then determine that first please Seek the receiving terminal of message.

Alternatively, method 700 specifically includes：

S701, the first NSM＆O are when the network function is the privately-owned network function of the target NSI, to described Management equipment sends the network function shrink request message；Or

S702, the first NSM＆O are the target NSI and the shared network function that associates NSI in the network function, And when shrinking the network function and not influencing the service of the association NSI, the network function receipts are sent to the management equipment Contracting request message, wherein, the association NSI is the NSI that the network function is used in conjunction with the target NSI.

If network function to be shunk is target NSI and the shared network function that associates NSI, the first NSM＆O according to The NSLD of association NSI determines association NSI operating conditions, and judges to shrink whether the shared network function can influence associating NSI just In the service of offer.If can be adversely affected to the service for associating NSI, the shared network function is not shunk.If institute State network function shrink request message to be triggered by transmitting terminal (Sender), then the first NSM＆O feeds back the band to the transmitting terminal and shrinks Network function be currently being used, can not shrink.Transmitting terminal may be obtain authorize third party tenant, operator or some Have the right shrink network section example application.

If network function to be shunk is the privately-owned network function of target NSI, the first NSM＆O can be directly to management Equipment sends network function shrink request message.

Therefore, the method for contraction NSI provided in an embodiment of the present invention, before network function shrink request message is sent, Different pretreatment modes use to shared network function and privately-owned network function, makes contraction will not be to being total to when sharing network function The service for enjoying other NSI offers of the function has a negative impact, in addition, if there is shared network function between multiple NSI, The shared network function in one of NSI need to be only shunk, i.e., has shunk multiple NSI at the same time, has reduced the maintenance time of system And cost.

Alternatively, before the first NSM＆O sends network function shrink request message to management equipment, method 700 is also Including：

S703, the first NSM＆O obtain NSI shrink request message, wherein, the NSI shrink requests message includes institute The identification information of target NSI is stated, the NSI shrink requests message is used to ask the first NSM＆O to carry out the target NSI Shrink process；

S704, the first NSM＆O determine the network section template NSLD of the target NSI according to the identification information；

S705, the first NSM＆O determine the network function according to the NSLD.

In the embodiment of the present invention, the NSI shrink requests message that the first NSM＆O is obtained can be inside the first NSM＆O It is mechanism (such as performance management mechanisms) triggering generation or from transmitting terminal reception.NSI shrink request message includes The identification information of target NSI, in order to which the first NSM＆O determines according to the identification information NSLD of target NSI, and further basis The NSLD determines network function to be shunk.If the first NSM＆O receives NSI shrink request message from transmitting terminal, which receives Contracting request message further includes the identity of transmitting terminal, services/functionalities description that need to be shunk etc..

When the first NSM＆O receives NSI shrink request message from transmitting terminal, the first NSM＆O can pass through memory verification The identity of the transmitting terminal, verifies the integrality of parameter in the NSI shrink request message, for example, the identification information of verification target NSI Form it is whether correct, whether the descriptor format of the services/functionalities for that need to shrink correct.Then, the first NSM＆O checks target NSI whether there is and its operating condition, the NSLD of associated objects NSI, and with reference to the NSLD, the first NSM＆O corresponds to these descriptions To the VNF or/and PNF in target NSI.As target NSI is not present, the first NSM＆O is not present to transmitting terminal feedback target NSI. If target NSI is not collapsible, the first NSM＆O feeds back target NSI to transmitting terminal and can not shrink.If target NSI is collapsible, Whether authentication transmitting terminal, which has permission, is shunk target NSI and its corresponding VNF and/or PNF.If authentication is not by the first NSM＆O Corresponding error message is fed back to transmitting terminal, as transmitting terminal haves no right to shrink target NSI, contraction command parameter mistake etc..

When the first NSM＆O internal trigger NSI shrink request message, the NSLD of the first NSM＆O associated objects NSI, verification Whether target NSI is collapsible, and combines NSLD and determine to need the VNF and/or PNF shunk in target NSI.If target NSI can not Shrink, may be selected to operator and/or rent tenant feedback target NSI performances surplus or the utilization of resources of network section example Rate is low, determines to act in next step by operator or tenant.

Therefore, the method for contraction NSI provided in an embodiment of the present invention, the first NSM＆O can be flexibly true according to actual conditions It is fixed that shrink process is carried out to target NSI.When operator or obtain the existing NSI of network section example third party tenant's discovery authorized Performance it is superfluous when shrink NSI on demand, or shunk automatically according to strategy when the performance of NSI is superfluous, reduce O＆M cost.

Alternatively, after the first NSM＆O obtains NSI shrink request message, and the first NSM＆O is set to management Before preparation SCN Space Cable Network function shrink request message, method 700 further includes：

S706, the first NSM＆O send a notification message to network manager NM, and the notification message is used to notify described First NSM＆O described in NM needs to carry out shrink process to the network function；

S707, the first NSM＆O receive confirmation message from the NM, and the confirmation message is used to indicate described first NSM＆O carries out shrink process to the network function.

In the embodiment of the present invention, network management framework includes NM, and the network function that the first NSM＆O treats contraction is shunk The forward direction NM of processing sends a notification message, and the first NSM＆O of notice NM need to carry out the network function shrink process, and according to The confirmation message that NM is sent determines to carry out shrink process to the network function, so that it is guaranteed that NM and NSM＆O do not produce configuration conflict.

Alternatively, the first NSM＆O is received from the management equipment shrink feedback message after, and described first Before NSM＆O updates storage the information of the target NSI stored in device according to the feedback message, method 700 further includes：

S721, the first NSM＆O send resource allocation request message to virtualized infrastructure manager VIM, described Resource allocation request message is used to ask the VIM to discharge the idling-resource after the network function is shunk；

S722, the first NSM＆O receive resource allocation feedback message from the VIM；

First NSM＆O updates storage the information of the target NSI stored in device according to the contraction feedback message Including：

S731, the first NSM＆O are according to the contraction feedback message and resource allocation feedback message renewal The information of the target NSI stored in memory.

(alternatively, the content of the contraction feedback message includes after first NSM＆O receives contraction feedback message from VNFM The parameter that VNF updates after shrinking), the first NSM＆O sends resource allocation request message to VIM, which please VIM is asked to shrink the resource shared by the VNF, alternatively, resource allocation request message request is additionally operable to request VIM adjustment should The internal network connection of VNF.If the existing resources of VNF are shunk in resource allocation request message request, such as are reduced CPU and used Time, storage resource occupancy, bandwidth occupancy ratio etc., then VIM need not delete VNF internal networks connection；If resource point The partial virtual machine of the VNF is deleted with request message requests, then VIM first adjusts or delete the connection of VNF internal networks, then deletes void Plan machine simultaneously discharges resource.

When the first NSM＆O receives contraction feedback message from VNFM, and the content of the contraction feedback message is termination VNF When, the first NSM＆O sends resource allocation request message to VIM, and resource allocation request message request VIM, which terminates, the VNF and to be released Put corresponding resource.VIM is received between other network functions that the VNF and target NSI is deleted after the resource allocation request message Existing network connection simultaneously discharges the resource for forming the VNF, such as deletes virtual machine and discharges resource.If the VNF of termination is The target NSI and VNF for associating NSI and sharing, then VIM can also delete existing net between the VNF and the network function for associating NSI Network connects and discharges corresponding resource.

VIM completes to send resource allocation to the first NSM＆O after handling accordingly and feed back to disappear according to resource allocation request message Breath, the resource allocation feedback message have been completed for feeding back corresponding resource shrink process.First NSM＆O disappears according to feedback is shunk Breath and the resource allocation feedback message update storage the information of the target NSI stored in device

Alternatively, when the network function is shared network function, method 700 further includes：

S732, the first NSM＆O are according to the association NSI's stored in the contraction feedback message renewal memory Information, the association NSI is the NSI that the shared network function is used in conjunction with the target NSI.

When the network function of contraction is shared network function, the first NSM＆O can be deposited according to feedback message renewal is shunk The information of the association NSI stored in reservoir, for example, the VNF/PNF information of renewal association NSI.So as to believe in holding system The synchronization of breath.

Alternatively, the first NSM＆O obtains NSI shrink request message, including：

S708, the first NSM＆O obtain the NSI shrink requests message that the 2nd NSM＆O is sent.

In the embodiment of the present invention, the first NSM＆O can be a module in a kind of NSM＆O with hierarchical structure, the One NSM＆O can obtain the NSI shrink requests message from the 2nd NSM＆O, and the 2nd NSM＆O is the NSM＆ with hierarchical structure Another module in O.

Fig. 8 shows a kind of schematic diagram of the NSM＆O with hierarchical structure.As shown in figure 8, the NSM＆O includes One total composer multi-vendor NSM＆O (or be " striding equipment business composer ", for managing multiple sub-networks sections Or the equipment of multiple equipment business, the embodiment of the present invention are not construed as limiting this concept) and three domain composer domain NSM＆O. Wherein, multi-vendor NSM＆O are equivalent to the 2nd NSM＆O, and domain NSM＆O are equivalent to the first NSM＆O.multi- Control composer total as one vendor NSM＆O, manages each domain NSM＆O.A for example, network section example It can be made of core net section example, access net section example, there are a responsible overall network section example at this time Two of the multi-vender NSM＆O of management and respectively higher management net section example and access net section example domain NSM&O；Alternatively, a network section example can be divided into the son that multiple and different Provider Equipments provide and cut into slices in fact Example, per height, section example is made of the equipment of an equipment supplier, as the network of certain operator cuts into slices example by one Multi-vendor NSM＆O are responsible for overall management, and the domain NSM＆O that several equipment vendors provide manage the offer of this equipment vendor Equipment.The description of son section example is similar to the description of whole section example, and the information of sub- section example can include network Connection relation, KPI demands, SLA (Service Level Agreement, service level association between function, network function View), need operating parameter for monitoring etc..

Each sub-network section example is managed by each domain NSM＆O respectively.Multi-vendor NSM＆O are received After contracting request message, it can be determined that need which sub-network section example shunk, then directly notify corresponding Domain NSM＆O are shunk.Above-described embodiment is merely illustrative of, not limited to this of the embodiment of the present invention, domain The quantity of NSM＆O can also be other quantity.

Fig. 9 shows a kind of indicative flowchart of the method for the contraction NSI of NSM＆O with hierarchical structure.Such as Fig. 9 institutes Show, when multi-vendor NSM＆O from transmitting terminal receive shrink NSI request or multi-vendor NSM＆O initiate receive During the request of contracting NSI, it is known that the composition of the NSI is divided into a few height section examples (this composition is determined when NSI is created), and determines One or more of son section examples (that is, target NSI) need to shrink.Multi-vendor NSM＆O notices are corresponding afterwards Domain NSM＆O complete the contraction of son section example.Sub-network section specifically how is shunk voluntarily to be determined by domain NSM＆O It is fixed.

Therefore, the method for contraction NSI provided in an embodiment of the present invention, is determined to mesh by the NSM＆O with hierarchical structure The contraction of NSI is marked, can be with flexible management multiple domain, the network of more vendor.

In conclusion the method for contraction NSI provided in an embodiment of the present invention, by the newly-designed network architecture to NSI into Row management, can carry out layout management to physics and virtual network function/resource at the same time and realize that network is cut into slices, shorten network Deployment time, saves lower deployment cost.And when shrinking NSI, by being handled differently universal network function and privately-owned network work( Can, avoid influencing the service that other section examples are providing when shrinking universal network function.

The method for describing contraction NSI provided in an embodiment of the present invention in detail from the angle of NSM＆O above, in the following, will knot Close Figure 10, the method that contraction NSI provided in an embodiment of the present invention is discussed in detail from the angle of management equipment.

Figure 10 shows the indicative flowchart of the method for another contraction NSI provided in an embodiment of the present invention.Such as Figure 10 institutes Show, this method 1000 includes：

S1010, management equipment receive network function shrink request message from NSM＆O, wherein, the management equipment is used to manage The network function to be shunk of target NSI is managed, the NSM＆O is used to be managed network section example NSI and layout.

S1020, the management equipment shrink the network function according to the network function shrink request message Processing.

S1030, the management equipment is sent to the NSM＆O shrinks feedback message, and the contraction feedback message is used for anti- Present the result of the shrink process of the network function.

In the embodiment of the present invention, management equipment is the equipment of the network function to be shunk for management objectives NSI, the pipe It can be EM or VNFM to manage equipment, can also be NFVO.NSM＆O is used to be managed NSI (for example, target NSI) And layout a, it should be appreciated that network function may include multiple PNF or multiple VNF, therefore, to the shrink pack of network function Termination PNF is included, shrink PNF, termination VNF and shrinks at least one of VNF processing method.In addition, NSI may include multinomial net Network function, a network function for shrinking NSI can be referred to by shrinking NSI, can also refer to the multinomial network function for shrinking NSI.According to The difference of network function to be shunk, the content and sending object of network function shrink request message are also different.

The network function shrink request message that management equipment receives can be that (that is, NSM＆O only includes one to single NSM＆O Module) in the message that sends or compound NSM＆O (that is, NSM＆O includes the different module of at least two levels) The message that domain NSM＆O are sent.

The step of management equipment carries out shrink process according to network function shrink request message to the network function of target NSI With method 700 involved in arrive management equipment the step of it is identical, details are not described herein.

Management equipment is completed to shrink feedback message to sending to NSM＆O after the shrink process of the network function of target NSI, should Shrink the result that feedback message is used to feed back the shrink process of the network function.NSM＆O is sent out according to the result of shrink process to VIM Resource allocation request message is sent, request VIM discharges the idling-resource after above-mentioned network function is shunk, and NSM＆O can also be according to receipts The result of contracting processing updates storage the information of target NSI in device, such as the VNF/PNF information of target NSI, if what is shunk is altogether Function is enjoyed, NSM＆O updates the VNF/PNF information in association NSI at the same time.

Alternatively, the management equipment includes VNFM, and the network function includes the first VNF examples,

The management equipment carries out shrink process bag according to the network function shrink request message to the network function Include：

S1021, the VNFM perform contraction according to the network function shrink request message to the first VNF examples can Row inspection.

S1022, the VNFM shrink the first VNF examples in the contraction feasibility passed examination.

If network function shrink request message request VNFM shrinks the first VNF examples, VNFM is being performed to the first VNF realities Before the shrink process of example, the contractility for first checking for the first VNF examples (that is, performs the first VNF examples and shrinks feasibility inspection Look into), which includes but not limited to verify NSM＆O the first VNF examples of whether qualified contraction and whether checks shrinkage parameters Meet specification.

If above-mentioned inspection performs contraction place by (that is, contracting feasibility passed examination), VNFM to the first VNF examples Reason.After VNFM performs the first VNF examples shrink process (for example, correcting shrinkage parameters), send contraction feedback to NSM＆O and disappear Breath, the contraction feedback message are used to authorize NSM＆O the first VNF examples of progress to be handled (for example, changing the life of the first VNF Cycle), alternatively, which also carries corrected shrinkage parameters and the resource being related to.

Therefore, the method for contraction NSI provided in an embodiment of the present invention, the receipts of VNF examples to be shunk are checked by VNFM Contracting feasibility, so that it is guaranteed that the shrink process of VNF examples can be executed correctly.

Alternatively, the management equipment includes EM, and the network function includes the 2nd VNF examples, the 2nd VNF examples It is the VNF examples of NM generations,

It is described to shrink instead when the network function request message is used to ask to stop the service of the 2nd VNF examples The service that feedback message is used to feed back the 2nd VNF examples has been stopped.

In present example, when system includes NM, and VNF examples to be shunk (that is, the 2nd VNF examples) are generated by NM VNF examples when, NSM＆O can not shrink the VNF examples, i.e., can not reduce form the VNF examples resource, wherein, NSM＆O things First check whether VNF examples can be retracted.

When system includes NM, and layout the result is that when continuing offer service without the 2nd VNF examples, NSM＆O passes through NG5 (that is, network function request message is used to ask end for the request of the 2nd VNF of EM initiation configurations of from the interface to the 2nd VNF examples of management Tie the 2nd VNF examples).The request includes point and is not limited to：

If a) the corresponding network function of the 2nd VNF examples is privately-owned network function, stop the clothes providing target NSI Business, deletes the configuration parameter (such as network section instance identification) for being used for supporting that target NSI is serviced, and deletes service goal NSI's Strategy.EM performs the request and by NG5 interface execution result back.NSM＆O passes through NG4 interface notifications NFVO terminations/closing Network connection that may be present between 2nd VNF examples and target NSI privately-owned network functions, discharges respective network resource.NFVO Perform the request and by NG4 interface execution result backs.Repeat this sub-step until it is all by NM generation VNF examples by with Put.

If b) the corresponding network function of the 2nd VNF examples is shared network function, stop to target NSI with associate NSI The service of offer, deletes and is used to support target NSI and associates the configuration parameter (such as network section instance identification) of NSI services, Delete service goal NSI and the strategy for associating NSI.EM performs the request and by NG5 interface execution result back.NSM＆O leads to NG4 interface notifications NFVO is crossed to terminate/close the VNF and target NSI and network that may be present connects between associating NSI network functions Connect, discharge respective network resource.NFVO performs the request and by NG4 interface execution result back.Repeat this sub-step until All VNF examples by NM generations are configured

Therefore, the method for contraction NSI provided in an embodiment of the present invention, the attribute of VNF examples to be shunk is checked by EM Determine whether VNF examples to be shunk can be retracted, occur so as to avoid NSM＆O when shrinking the VNF examples of NM generations Mistake.

Below by terms of the general character being related to based on invention described above embodiment, the embodiment of the present invention is done further Describe in detail.

Figure 11 is the indicative flowchart of another method for shrinking NSI provided in an embodiment of the present invention.This method can be applied In the system shown in Fig. 4, as shown in figure 11, this method 1100 includes：

S1101, option a)：NSM＆O receives the NSI shrink requests of transmitting terminal initiation.Need to cut into slices comprising network in the request The indications of example, the identity of transmitting terminal, the services/functionalities description that need to be shunk etc..Transmitting terminal may be to obtain what is authorized Third party tenant, operator or some application for having the right to shrink network section example.Option b)：Other machines inside NSM＆O System, such as performance management mechanisms, trigger NSI shrink requests.

S1102, NSM＆O check NSI states and associate corresponding NSLD by memory authentication, authentication.

A) if NSM＆O receives the shrink request of transmitting terminal.

I.NSM＆O needs the identity by the memory verification transmitting terminal, verifies the integrality of parameter in the request, such as net Whether network section instance identification form is correct, and whether the descriptor formats of the services/functionalities for that need to shrink is correct etc..

Ii.NSM＆O inspection corresponding network section examples whether there is and its operating condition, related network section example NSLD, with reference to NSLD, these descriptions are corresponded to VNF or/and PNF in the NSI by NSM＆O.As network section example be not present, NSM＆O is not present to transmitting terminal feedback network section example.If example of cutting into slices is not collapsible, section reality is fed back to transmitting terminal Example can not be shunk.If section example it is collapsible, authentication transmitting terminal whether have permission shrink request network section example and its In corresponding VNF or/and PNF.If authentication verification is by the way that NSM＆O feeds back corresponding mistake to transmitting terminal, such as haves no right contraction and cuts Piece example, shrinks command parameter mistake etc..

If b) network section example shrink request is triggered by NSM＆O internal mechanisms, such as performance management triggering, NSM＆O associations Network is cut into slices the NSLD of example, and whether verification section example collapsible, and with reference to NSLD determine to need in NSI the VNF that shrinks or/and PNF.If example of cutting into slices is not collapsible, tenant's feedback target of network section example is may be selected to operator and/or rented NSI performances are superfluous or resource utilization is low, determine to act in next step by operator or tenant.

The VNF or/and PNF that S1103, NSM＆O layout need to be shunk, include whether to shrink VNF examples, configure PNF, termination VNF examples etc., and check network function contractility.The function that NSM＆O judges to shrink according to the information in associated NSLD Belonging to the universal network functions that more section examples are shared still needs the section example (hereinafter referred to as target NSI) that shrinks exclusive Network function.If what need to be shunk is the universal network function that more section examples are shared, S1104 is performed, is otherwise performed S1105。

S1104, if what need to be shunk is the universal network function that more section examples are shared, associates and shares the network function The NSLD of other section examples (hereinafter referred to as associating NSI) in addition to target NSI.NSM＆O checks association NSI operating conditions, and Judge to shrink whether universal network function can influence to associate the service that NSI is being provided.If the service for associating NSI can be caused Negative effect, then do not shrink the shared network function, (if shrink request is initiated by transmitting terminal) feeds back to transmitting terminal network function It is currently being used, can not shrinks.

S1105, if the function that layout result need to be shunk is realized by PNF, NSM＆O should to management by Itf-N interfaces The EM of PNF initiates to configure the request of the network function：

If a) PNF is the PNF that more section examples are shared, and layout result uses less resource for the existing PNF of configuration (such as storage resource, CPU time, network bandwidth etc.) service goal NSI with associate NSI, then the configuring request that NSM＆O is sent is allows The PNF distributes less resource service goal NSI and association NSI, and adjusts related operating parameter and policy information etc..

If b) PNF is the PNF that more section examples are shared, and layout result is that to stop the PNF be target NSI and association NSI provides service, then NSM＆O is sent to EM configures PNF requests, and configuration content includes but not limited to i) delete the related ginsengs of NSI Number, as target NSI and associate NSI mark, NSI monitoring and report information etc.；Ii related operating parameter and policy information) are deleted Deng；Iii) close to other sharing functionalities or/and the exclusive functions of target NSI, the network connection for associating the exclusive functions of NSI etc..

If c) PNF is the exclusive PNF of target NSI, and layout result is serviced for the existing PNF of configuration using less resource Target NSI with associate NSI, then the configuring request that NSM＆O is sent and adjusts to allow the PNF to distribute less resource service goal NSI Related operating parameter and policy information etc..

If d) PNF is the exclusive PNF of target NSI, and layout result provides service to stop the PNF for target NSI, Then NSM＆O, which is sent, configures the PNF, and configuration content includes but not limited to i) delete NSI relevant parameters, such as target NSI marks, NSI Monitor and report information etc.；Ii operating parameter and policy information etc.) are deleted；Iii) delete and arrive other sharing functionalities or/and target The network connection of the exclusive functions of NSI etc..

S1106, EM perform the configuring request to PNF, and configuration content is as described in S1105.

S1107, EM complete to confirm to NSM＆O feedback configurations, if there are other PNF not to be configured by target NSI, repeatedly S1105~S1107.

S1108, the shared or exclusive VNF examples if layout result need to terminate, NSM＆O is sent to EM to be stopped to the VNF The request of the management of example, including but not limited to stops monitoring the VNF example operating statuses, deletes management object.If layout As a result need to shrink VNF examples, then perform step S1112.

S1109, EM perform the request of management of the termination of S1108 to VNF examples.

S1110, EM feed back termination management to NSM＆O and confirm.

S1111, NSM＆O order EM close the virtual port of VNF examples, stop service.

S1112, NSM＆O by NG1 interfaces to VNFM send contraction/termination VNF instance notifications, the content of notice include but It is not limited to treat the identity of the VNF examples of contraction/termination, shrinkage parameters/termination order.

S1113, VNFM perform VNF contractions/termination request：

If a) request is shrinks VNF examples, VNFM performs VNF examples and shrinks feasibility inspection, includes but not limited to test The whether qualified contraction VNF examples of NSM＆O are demonstrate,proved, check whether shrinkage parameters meet specification.

If b) request is termination VNF examples, VNFM performs the request of termination VNF examples, i.e., cooperates in itself with VNF examples Normal switching-off VNF examples

S1114, VNFM are fed back by NG1 interfaces to NSM＆O：

If a) request is shrinks VNF examples, feedback is shunk feasibility inspection result, is repaiied in feedback result comprising (possibility) The parameter just crossed and the resource being related to, and authorize and start the change of VNF instance lifecycles.

If b) request is termination VNF examples, feedback termination performs confirmation

Parameter (only shrinking VNF examples) after the renewal that S1115, NSM＆O are fed back according to S1114, by NG2 interfaces to VIM is initiated as resource allocation request and internal connection adjustment/removal request needed for contraction/termination VNF examples.

S1116, VIM perform resource allocation change request and internal connection adjustment/removal request.

A) when shrinking shared VNF examples or exclusive VNF examples：

I. have resource if contraction VNF instance section, such as reduce CPU occupation proportions, storage resource usage amount, reduce band Width etc., without deleting internal network connection.

Ii. partial virtual machine is deleted if VNF examples, then first adjusts/delete internal network connection, turn off virtual machine simultaneously Discharge resource.

B) when terminate VNF examples when：

VIM, which deletes between the VNF examples and target NSI other network functions existing network connection and discharges, forms the VNF The resource of example, such as deletes virtual machine and discharges resource.

S1117, if the VNF examples of termination are the shared universal network functions of section, also need VIM delete the VNF examples and Existing network connection and respective resources are discharged between association NSI network functions.

S1118, VIM complete to confirm by NG2 interfaces to NSM＆O feedback resource allocations and network connection configuration.Only work as receipts During contracting VNF examples, this information is passed to VNFM by NSM＆O by NG1 interfaces.

S1119, only when shrinking VNF examples, VNFM adjustment VNF life parameters, deployment parameters.

S1120, only when shrinking VNF examples, VNFM is fed back VNF examples and shunk by NG2 interfaces to NSM＆O to be terminated.

S1121, only when shrinking VNF examples, NSM＆O passes through the VNF application parameters after EM adjustment contractions, such as perform function Adjusted with operation reserve.

S1122, NSM＆O update storage the VNF/PNF information of target NSI in device section example memory.If shrink It is sharing functionality, while updates the VNF/PNF information in association NSI.

S1123, if section example shrink request is sent by transmitting terminal, feeds back section example to transmitting terminal and shrinks successfully.

The method of contraction NSI provided in an embodiment of the present invention, based on the upgrading to existing network management system, supports network section Instance management, supports the unified layout management of physics network function and virtual network function, supports network section example to shrink, belongs to Important component in network cuts into slices life cycle management.The embodiment of the present invention allows operator or obtains the network authorized The existing section example performance of section example third party tenant's discovery shrinks network section example on demand when superfluous, or according to strategy Shunk automatically when example performance of cutting into slices is superfluous, reduce O＆M cost, save expense.In addition, the embodiment of the present invention cuts network Piece example neutralizes universal network function and the section privately-owned network feature difference management that other section examples are shared so that shared Shrinking for network function will not have a negative impact the service that other section examples provide.

Figure 12 is the indicative flowchart of another method for shrinking NSI provided in an embodiment of the present invention.This method can be applied In the system shown in Fig. 3, as shown in figure 12, this method 1200 includes：

S1201, option a)：NSM＆O receives the NSI shrink requests of transmitting terminal initiation.Need to cut into slices comprising network in the request The indications of example, the identity of transmitting terminal, the services/functionalities description that need to be shunk etc..Transmitting terminal may be to obtain what is authorized Third party tenant, operator or some application for having the right to shrink network section example.Option b)：Other machines inside NSM＆O System, such as performance management mechanisms, trigger NSI shrink requests.

S1202, NSM＆O check NSI states and associate corresponding NSLD by memory authentication, authentication.

A) if NSM＆O receives the shrink request of transmitting terminal.

The VNF or/and PNF that S1203, NSM＆O layout need to be shunk, include whether to shrink VNF examples, configure PNF, termination VNF examples etc., and check network function contractility.The function that NSM＆O judges to shrink according to the information in associated NSLD Belonging to the universal network functions that more section examples are shared still needs the section example (hereinafter referred to as target NSI) that shrinks exclusive Network function.If what need to be shunk is the universal network function that more section examples are shared, S1204 is performed, is otherwise performed S1205。

S1204, if what need to be shunk is the universal network function that more section examples are shared, associates and shares the network function The NSLD of other section examples (hereinafter referred to as associating NSI) in addition to target NSI.NSM＆O checks association NSI operating conditions, and Judge to shrink whether universal network function can influence to associate the service that NSI is being provided.If the service for associating NSI can be caused Negative effect, then do not shrink the shared network function, (if shrink request is initiated by transmitting terminal) feeds back to transmitting terminal network function It is currently being used, can not shrinks.

S1205, if the function that layout result need to be shunk is realized by PNF, NSM＆O should to management by Itf-N interfaces The EM of PNF initiates to configure the request of the network function：

S1206, EM perform the configuring request to PNF, and configuration content is as described in S1205.

S1207, EM complete to confirm to NSM＆O feedback configurations, if there are other PNF not to be configured by target NSI, repeatedly S1205~S1207.

S1208, the shared or exclusive VNF examples if layout result need to terminate, NSM＆O is sent to EM to be stopped to the VNF The request of the management of example, including but not limited to stops monitoring the VNF example operating statuses, deletes management object.If layout As a result need to shrink VNF examples, then perform step S1212.

S1209, EM perform the request of management of the termination of S1208 to VNF examples.

S1210, EM feed back termination management to NSM＆O and confirm.

S1211, NSM＆O order EM close the virtual port of VNF examples, stop service.

S1212, NSM＆O send contraction/termination VNF instance notifications to NFVO, and the content of notice is including but not limited to due-in The identity of the VNF examples of contracting/termination, shrinkage parameters/termination order.

S1213, NFVO perform following methods according to the contraction/termination VNF instance notifications.

NFVO requests VNFM performs VNF contractions/termination request：

VNFM is fed back to NFVO：

Parameter (only shrinking VNF examples) after the renewal that NFVO is fed back according to above-mentioned VNFM is initiated as contraction/termination to VIM Resource allocation request and internal connection adjustment/removal request needed for VNF examples.

VIM performs resource allocation change request and internal connection adjustment/removal request：

A) when shrinking shared VNF examples or exclusive VNF examples：

B) when terminate VNF examples when：

If the VNF examples of termination are the shared universal network functions of section, VIM is also needed to delete the VNF examples and associate NSI Existing network connection and respective resources are discharged between network function.

VIM completes to confirm to NFVO feedback resource allocations and network connection configuration.Only when shrinking VNF examples, NFVO will This information passes to VNFM.

Only when shrinking VNF examples, VNFM adjustment VNF life parameters, deployment parameters.

S1214, when shrinking VNF examples, NFVO is shunk to NSM＆O feedback VNF examples to be terminated；When terminate VNF examples when, NFVO shrinks termination to NSM＆O feedback VNF examples to be completed, and Configuration network connection completion notice.

S1215, only when shrinking VNF examples, NSM＆O passes through the VNF application parameters after EM adjustment contractions, such as perform function Adjusted with operation reserve.

S1216, NSM＆O update storage the VNF/PNF information of target NSI in device section example memory.If shrink It is sharing functionality, while updates the VNF/PNF information in association NSI.

S1217, if section example shrink request is sent by transmitting terminal, feeds back section example to transmitting terminal and shrinks successfully.

The method of contraction NSI provided in an embodiment of the present invention, based on the upgrading to existing network management system, supports section pipe Reason, supports the direct layout management of physics network function, NFV MANO system administration layouts is then used for virtual network function, Support this system architecture lower network section example to shrink, belong to the important component in network section life cycle management.This Invention allows the network section example third party tenant of operator or acquirement mandate to find to press during existing section example performance surplus Network section example need to be shunk, or is shunk automatically according to strategy when example performance of cutting into slices is superfluous, O＆M cost is reduced, saves Resource overhead.In addition, the present invention neutralizes network section example universal network function and the section that other section examples are shared Privately-owned network feature difference management so that the service for shrinking example offer that will not cut into slices to other of shared network function produces negative Face is rung.

Figure 13 is the indicative flowchart of another method for shrinking NSI provided in an embodiment of the present invention.This method can be applied In the system shown in Fig. 5, as shown in figure 13, this method 1300 includes：

S1301, option a)：NSM＆O receives the NSI shrink requests of transmitting terminal initiation.Need to cut into slices comprising network in the request The indications of example, the identity of transmitting terminal, the services/functionalities description that need to be shunk etc..Transmitting terminal may be to obtain what is authorized Third party tenant, operator or some application for having the right to shrink network section example.Option b)：Other machines inside NSM＆O System, such as performance management mechanisms, trigger NSI shrink requests.

S1302, NSM＆O check NSI states and associate corresponding NSLD by memory authentication, authentication.

A) if NSM＆O receives the shrink request of transmitting terminal.

The VNF or/and PNF that S1303, NSM＆O layout need to be shunk, include whether to shrink VNF examples, configure PNF, termination VNF examples etc., and check network function contractility, use during instantiation/renewal/extension if network is cut into slices and generated by NM VNF, then NSM＆O the VNF can not be shunk, i.e., can not reduce form the VNF resource.NSM＆O is according in associated NSLD Information judge that the function that need to shrink belongs to the universal network functions that more section examples are shared and still needs the section example shunk (hereinafter referred to as target NSI) exclusive network function.If what need to be shunk is the universal network function that more section examples are shared, S1304 is then performed, otherwise performs S1305.

S1304, if what need to be shunk is the universal network function that more section examples are shared, associates and shares the network function The NSLD of other section examples (hereinafter referred to as associating NSI) in addition to target NSI.NSM＆O checks association NSI operating conditions, and Judge to shrink whether universal network function can influence to associate the service that NSI is being provided.If the service for associating NSI can be caused Negative effect, then do not shrink the shared network function, (if shrink request is initiated by transmitting terminal) feeds back to transmitting terminal network function It is currently being used, can not shrinks.

S1305, NSM＆O will configure which network function (including PNF and VNF) by NG3 interface notifications NM.

S1306, NM, to NSM＆O feedback acknowledgments, so as to avoid NM and NSM＆O from configuring at the same time, produce punching by NG3 interfaces It is prominent.

S1307, if the function that layout result need to be shunk is realized by PNF, NSM＆O should to management by Itf-N interfaces The EM of PNF initiates to configure the request of the network function：

S1308, EM perform the configuring request to PNF, and configuration content is as described in S1305.

S1309, EM complete to confirm to NSM＆O feedback configurations, if there are other PNF not to be configured by target NSI, repeatedly S1307~S1309.

S1310, when layout result for when providing service again without the VNF, NSM＆O is by NG5 interfaces to managing the VNF EM initiates to configure the request of the network function.The request includes but not limited to：

If a) VNF is privately-owned network function, stop the service providing target NSI, delete and be used to support target NSI The configuration parameter of service such as network section instance identification, deletes the strategy of service goal NSI.EM performs the request and passes through NG5 Interface execution result back.NSM＆O is terminated/closed the VNF and target NSI privately-owned network functions by NG4 interface notifications NFVO Between network connection that may be present, discharge respective network resource.NFVO performs the request and performs knot by NG4 interfaces feedback Fruit.This sub-step is repeated until all VNF by NM generations are configured.

If b) VNF is shared network function, stop, to target NSI and the service for associating NSI offers, deleting and being used for branch Hold target NSI and associate the configuration parameter such as network section instance identification of NSI services, delete service goal NSI and associate NSI's Strategy.EM performs the request and by NG5 interface execution result back.NSM＆O passes through NG4 interface notifications NFVO terminations/closing The VNF and target NSI and network connection that may be present between NSI network functions is associated, discharge respective network resource.NFVO is held The row request simultaneously passes through NG4 interface execution result backs.This sub-step is repeated until all VNF by NM generations are configured.

S1311, the shared or exclusive VNF examples if layout result need to terminate, NSM＆O is sent to EM to be stopped to the VNF The request of the management of example, including but not limited to stops monitoring the VNF example operating statuses, deletes management object.If layout As a result need to shrink VNF examples, then perform step S1312.

S1312, EM perform the request of management of the termination of S1311 to VNF examples.

S1313, EM feed back termination management to NSM＆O and confirm.

S1314, NSM＆O order EM close the virtual port of VNF examples, stop service.

S1315, NSM＆O send contraction/termination VNF instance notifications to NFVO, and the content of notice is including but not limited to due-in The identity of the VNF examples of contracting/termination, shrinkage parameters/termination order.

S1316, NFVO perform following methods according to the contraction/termination VNF instance notifications.

NFVO requests VNFM performs VNF contractions/termination request：

VNFM is fed back to NFVO：

A) when shrinking shared VNF examples or exclusive VNF examples：

B) when terminate VNF examples when：

Only when shrinking VNF examples, NFVO adjustment VNF life parameters, deployment parameters.

S1317, only when shrinking VNF examples, NFVO is shunk to NSM＆O feedback VNF examples to be terminated；When termination VNF examples When, NFVO shrinks termination to NSM＆O feedback VNF examples to be completed, and Configuration network connection completion notice.

S1318, only when shrinking VNF examples, NSM＆O passes through the VNF application parameters after EM adjustment contractions, such as perform function Adjusted with operation reserve.

S1319, NSM＆O notice NM network function configurations have been completed, and inform the particular content of configuration.

S1320, NSM＆O update storage the VNF/PNF information of target NSI in device section example memory.If shrink It is sharing functionality, while updates the VNF/PNF information in association NSI.

S1321, if section example shrink request is sent by transmitting terminal, feeds back section example to transmitting terminal and shrinks successfully.

The method of contraction NSI provided in an embodiment of the present invention, retains existing network management system, is used for network section business A set of independent network management system, supports the direct layout management of physics network function, NFV is then used for virtual network function MANO system administration layouts, support this system architecture lower network section example to shrink, and belong in network section life cycle management Important component.The present invention allows the network section example third party tenant of operator or acquirement mandate to find that performance is superfluous When shrink network section example on demand, or shunk automatically according to strategy when example performance of cutting into slices is superfluous, reduce O＆M cost, Save resource overhead.In addition, the present invention network section example is neutralized other universal network functions for sharing of section examples and Section privately-owned network feature difference management so that shared network function shrinks the service production that will not be provided other section examples Raw negative effect.

Figure 14 is the indicative flowchart of another method for shrinking NSI provided in an embodiment of the present invention.This method can be applied In the system shown in Fig. 4, as shown in figure 14, this method 1400 includes：

S1401, option a)：NSM＆O receives the NSI shrink requests of transmitting terminal initiation.Need to cut into slices comprising network in the request The indications of example, the identity of transmitting terminal, the services/functionalities description that need to be shunk etc..Transmitting terminal may be to obtain what is authorized Third party tenant, operator or some application for having the right to shrink network section example.Option b)：Other machines inside NSM＆O System, such as performance management mechanisms, trigger NSI shrink requests.

S1402, NSM＆O check NSI states and associate corresponding NSLD by memory authentication, authentication.

A) if NSM＆O receives the shrink request of transmitting terminal.

The VNF or/and PNF that S1403, NSM＆O layout need to be shunk, include whether to shrink VNF examples, configure PNF, termination VNF examples etc., and check network function contractility.The function that NSM＆O judges to shrink according to the information in associated NSLD Belonging to the universal network functions that more section examples are shared still needs the section example (hereinafter referred to as target NSI) that shrinks exclusive Network function.If what need to be shunk is the universal network function that more section examples are shared, S1404 is performed, is otherwise performed S1405。

S1404, if what need to be shunk is the universal network function that more section examples are shared, associates and shares the network function The NSLD of other section examples (hereinafter referred to as associating NSI) in addition to target NSI.NSM＆O checks association NSI operating conditions, and Judge to shrink whether universal network function can influence to associate the service that NSI is being provided.If the service for associating NSI can be caused Negative effect, then do not shrink the shared network function, (if shrink request is initiated by transmitting terminal) feeds back to transmitting terminal network function It is currently being used, can not shrinks.

S1405, NSM＆O will configure which network function (such as PNF) by NG3 interface notifications NM.

S1406, NM, to NSM＆O feedback acknowledgments, so as to avoid NM and NSM＆O from configuring at the same time, produce punching by NG3 interfaces It is prominent.

S1407, if the function that layout result need to be shunk is realized by PNF, NSM＆O should to management by Itf-N interfaces The EM of PNF initiates to configure the request of the network function：

S1408, EM perform the configuring request to PNF, and configuration content is as described in S1407.

S1409, EM complete to confirm to NSM＆O feedback configurations, if there are other PNF not to be configured by target NSI, repeatedly S1407~S1409.

After S1410, NSM＆O configure PNF, the particular content configured to PNF is fed back to NM by NG3.

S1411, the shared or exclusive VNF examples if layout result need to terminate, NSM＆O is sent to EM to be stopped to the VNF The request of the management of example, including but not limited to stops monitoring the VNF example operating statuses, deletes management object.If layout As a result need to shrink VNF examples, then perform step S1412.

S1412, EM perform the request of management of the termination of S1411 to VNF examples.

S1413, EM feed back termination management to NSM＆O and confirm.

S1414, NSM＆O order EM close the virtual port of VNF examples, stop service.

S1415, NSM＆O by NG1 interfaces to VNFM send contraction/termination VNF instance notifications, the content of notice include but It is not limited to treat the identity of the VNF examples of contraction/termination, shrinkage parameters/termination order.

S1416, VNFM perform VNF contractions/termination request：

S1417, VNFM are fed back by NG1 interfaces to NSM＆O：

Parameter (only shrinking VNF examples) after the renewal that S1418, NSM＆O are fed back according to S1417, by NG2 interfaces to VIM is initiated as resource allocation request and internal connection adjustment/removal request needed for contraction/termination VNF examples.

S1419, VIM perform resource allocation change request and internal connection adjustment/removal request.

A) when shrinking shared VNF examples or exclusive VNF examples：

B) when terminate VNF examples when：

S1420, if the VNF examples of termination are the shared universal network functions of section, also need VIM delete the VNF examples and Existing network connection and respective resources are discharged between association NSI network functions.

S1421, VIM complete to confirm by NG2 interfaces to NSM＆O feedback resource allocations and network connection configuration.Only work as receipts During contracting VNF examples, this information is passed to VNFM by NSM＆O by NG1 interfaces.

S1422, only when shrinking VNF examples, VNFM adjustment VNF life parameters, deployment parameters.

S1423, only when shrinking VNF examples, VNFM is fed back VNF examples and shunk by NG2 interfaces to NSM＆O to be terminated.

S1424, only when shrinking VNF examples, NSM＆O passes through the VNF application parameters after EM adjustment contractions, such as perform function Adjusted with operation reserve.

S1425, NSM＆O update storage the VNF/PNF information of target NSI in device section example memory.If shrink It is sharing functionality, while updates the VNF/PNF information in association NSI.

S1426, if section example shrink request is sent by transmitting terminal, feeds back section example to transmitting terminal and shrinks successfully.

The method of contraction NSI provided in an embodiment of the present invention, retains existing network management system, is used for network section business A set of independent network management system, supports the direct layout management of physics network function and virtual network function, supports this system tray Structure lower network section example is shunk, and belongs to the important component in network section life cycle management.The present invention allows to run Business obtains the network section example third party tenant authorized and finds to shrink network section example, Huo Zhegen when performance is superfluous on demand Shunk automatically according to strategy when example performance of cutting into slices is superfluous, reduce O＆M cost, save resource overhead.In addition, the present invention is to net Network section example neutralizes universal network function and the section privately-owned network feature difference management that other section examples are shared so that The contraction of shared network function can benefit more section examples.The present invention neutralizes network section example what other section examples were shared Universal network function and section privately-owned network feature difference management so that the contraction of shared network function will not be to other sections The service that example provides has a negative impact.

Above-described embodiment is mainly described the scheme of the embodiment of the present invention from the angle of interaction between each network element. It is understood that each network element, such as NSM＆O, management equipment etc., in order to realize above-mentioned function, it comprises perform each work( Can corresponding hardware configuration and/or software module.Those skilled in the art should be readily appreciated that, with reference to disclosed herein Embodiment description each exemplary unit and algorithm steps, the present invention can be with the combination of hardware or hardware and computer software Form is realized.Some functions is performed in a manner of hardware or computer software driving hardware actually, depending on technical side The application-specific and design constraint of case.Professional technician can carry out each specific application real using distinct methods Existing described function, but this realization is it is not considered that beyond the scope of this invention

The embodiment of the present invention can be according to above method example to NSM＆O, management equipment (such as EM, VNFM or NFVO) etc. Carry out the division of functional unit, for example, can correspond to each function divides each functional unit, can also by two or two with On function be integrated in a processing unit.Above-mentioned integrated unit can both be realized in the form of hardware, can also adopt Realized with the form of SFU software functional unit.It should be noted that the division in the embodiment of the present invention to unit is schematical, only Only a kind of division of logic function, can there is other dividing mode when actually realizing.

In the case of using integrated unit, Figure 15 A show that one kind of NSM＆O involved in above-described embodiment can The structure diagram of energy.NSM＆O1500 includes：Processing unit 1502 and communication unit 1503.Processing unit 1502 be used for pair The action of NSM＆O1500 is controlled management, for example, processing unit 1502 is used to support NSM＆O1500 to perform Figure 10's S1020, processing unit 1502 can be also used for the S1103 for supporting NSM＆O1500 to perform Figure 11, and/or for described herein Technology other processes.Communication unit 1503 is used for the communication for supporting NSM＆O1500 and other network entities, for example, with Figure 11 In communication between the EM that shows.NSM＆O1500 can also include storage unit 1501, for storing the program of NSM＆O1500 Code and data.

Wherein, processing unit 1502 can be processor or controller, such as can be central processing unit (Central Processing Unit, CPU), general processor, digital signal processor (Digital Signal Processor, DSP), Application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), field programmable gate array It is (Field Programmable Gate Array, FPGA) or other programmable logic device, transistor logic, hard Part component or its any combination.It can realize or perform and patrol with reference to the disclosure of invention is described various exemplary Collect square frame, module and circuit.The processor can also be the combination for realizing computing function, such as include one or more micro- places Manage device combination, combination of DSP and microprocessor etc..Communication unit 1503 can be communication interface, transceiver, transmission circuit Deng, wherein, communication interface is to be referred to as, and can include one or more interfaces.Storage unit 1501 can be memory.

When processing unit 1502 is processor, communication unit 1503 is communication interface, when storage unit 1501 is memory, NSM＆O involved by the embodiment of the present invention can be the NSM＆O shown in Figure 15 B.

Refering to shown in Figure 15 B, which includes：Processor 1512, communication interface 1513, memory 1511.It is optional , NSM＆O1510 can also include bus 1514.Wherein, communication interface 1513, processor 1512 and memory 1511 can be with It is connected with each other by bus 1514；Bus 1514 can be Peripheral Component Interconnect standard (Peripheral Component Interconnect, abbreviation PCI) bus or expanding the industrial standard structure (Extended Industry Standard Architecture, abbreviation EISA) bus etc..The bus 1514 can be divided into address bus, data/address bus, controlling bus Deng.For ease of representing, only represented in Figure 15 B with a thick line, it is not intended that an only bus or a type of bus.

It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description The specific work process with unit is put, may be referred to the corresponding process in preceding method embodiment, details are not described herein.

Therefore, NSM＆O provided in an embodiment of the present invention, at the same time can carry out physics and virtual network function/resource Layout management realizes that network is cut into slices, and shortens network deployment time, saves lower deployment cost.And when shrinking NSI, pass through area Universal network function and privately-owned network function are managed in other places, avoid influencing other section examples when shrinking universal network function The service of offer.

In the case of using integrated unit, Figure 16 A show the one of management equipment involved in above-described embodiment The possible structure diagram of kind.Management equipment 1600 includes：Processing unit 1602 and communication unit 1603.Processing unit 1602 is used Management is controlled in the action to management equipment 1600, for example, processing unit 1602 is used to support management equipment 1600 to perform The S730 of Fig. 7, processing unit 1602 can be also used for the S1106 for supporting management equipment 1600 to perform Figure 11, and/or for herein Other processes of described technology.Communication unit 1603 is used to support management equipment 1600 and the communication of other network entities, Such as the communication between the NSM＆O with being shown in Figure 11.Management equipment 1600 can also include storage unit 1601, for storing The program code and data of management equipment 1600.

Wherein, processing unit 1602 can be processor or controller, such as can be CPU, general processor, DSP, ASIC, FPGA either other programmable logic device, transistor logic, hardware component or its any combination.It can be with Realize or perform and combine the described various exemplary logic blocks of the disclosure of invention, module and circuit.The processing Device can also be the combination for realizing computing function, such as be combined comprising one or more microprocessors, the group of DSP and microprocessor Close etc..Communication unit 1603 can be communication interface, transceiver, transmission circuit etc., wherein, communication interface is to be referred to as, can be with Including one or more interfaces.Storage unit 1601 can be memory.

When processing unit 1602 is processor, communication unit 1603 is communication interface, when storage unit 1601 is memory, Management equipment involved by the embodiment of the present invention can be the management equipment shown in Figure 16 B.

Refering to shown in Figure 16 B, which includes：Processor 1612, communication interface 1613, memory 1611. Optionally, management equipment 1610 can also include bus 1614.Wherein, communication interface 1613, processor 1612 and memory 1611 can be connected with each other by bus 1614；Bus 1614 can be pci bus or eisa bus etc..The bus 1614 can To be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Figure 16 B with a thick line, but not Represent only have a bus or a type of bus.

Therefore, management equipment provided in an embodiment of the present invention, is managed NSI by the newly-designed network architecture, can Realize that network is cut into slices to carry out layout management to physics and virtual network function/resource at the same time, shorten network deployment time, Save lower deployment cost.And when shrinking NSI, by being handled differently universal network function and privately-owned network function, avoid The service that other section examples are providing is influenced when shrinking universal network function

In embodiments of the present invention, the size of the sequence number of each process is not meant to the priority of execution sequence, each process Execution sequence should determine that the implementation process without tackling the embodiment of the present invention forms any restriction with its function and internal logic.

In addition, the terms "and/or", is only a kind of incidence relation for describing affiliated partner, represents there may be Three kinds of relations, for example, A and/or B, can represent：Individualism A, while there are A and B, these three situations of individualism B.Separately Outside, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.

It can be come with reference to the step of the described method of disclosure of the embodiment of the present invention or algorithm in a manner of hardware real Now or by the mode of processor execution software instruction realize.Software instruction can be made of corresponding software module, Software module can be stored on random access memory (Random Access Memory, RAM), flash memory, read-only storage (Read Only Memory, ROM), Erasable Programmable Read Only Memory EPROM (Erasable Programmable ROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), register, hard disk, movement are hard In the storage medium of disk, read-only optical disc (CD-ROM) or any other form well known in the art.A kind of exemplary storage Medium couples are to processor, so as to enable a processor to from the read information, and can write and believe to the storage medium Breath.Certainly, storage medium can also be the part of processor.Pocessor and storage media can be located in ASIC.In addition, The ASIC can be located in NSM＆O or management equipment.Certainly, pocessor and storage media can also be present in as discrete assembly In NSM＆O or management equipment.

Those skilled in the art it will be appreciated that in said one or multiple examples, retouched by the embodiment of the present invention The function of stating can be realized with hardware, software, firmware or their any combination.When implemented in software, can be by this A little functions be stored in computer-readable medium or instructed as one or more on computer-readable medium or code into Row transmission.Computer-readable medium includes computer storage media and communication media, and wherein communication media includes being easy to from one Any medium of the place to another place transmission computer program.Storage medium can be that universal or special computer can be deposited Any usable medium taken.

Claims

A kind of 1. method for shrinking network section example, it is characterised in that the described method includes：

First network section management sends network function shrink request message with composer NSM＆O to management equipment, wherein, it is described First NSM＆O is used to be managed network section example NSI and layout, the management equipment are treated for management objectives NSI's The network function of contraction, the network function shrink request message are used to ask the management equipment to carry out the network function Shrink process；

First NSM＆O is received from the management equipment shrinks feedback message, and the contraction feedback message is used for the management Equipment feeds back the result of the shrink process of the network function；

First NSM＆O updates storage the information of the target NSI stored in device according to the contraction feedback message.
2. according to the method described in claim 1, it is characterized in that, the method specifically includes：

First NSM＆O is sent out when the network function is the privately-owned network function of the target NSI to the management equipment Send the network function shrink request message；Or

First NSM＆O is the target NSI and the shared network function for associating NSI in the network function, and shrinks institute When stating network function does not influence the service of the association NSI, send the network function shrink request to the management equipment and disappear Breath, wherein, the association NSI is the NSI that the network function is used in conjunction with the target NSI.
3. method according to claim 1 or 2, it is characterised in that the first NSM＆O sends network work(to management equipment Before energy shrink request message, the method further includes：

First NSM＆O obtains NSI shrink request message, wherein, the NSI shrink requests message includes the target NSI Identification information, the NSI shrink requests message be used for ask the first NSM＆O to the target NSI carry out shrink process；

First NSM＆O determines the network section template NSLD of the target NSI according to the identification information；

First NSM＆O determines the network function according to the NSLD.
4. according to the method described in claim 3, it is characterized in that, the first NSM＆O obtain NSI shrink requests message it Afterwards, and the first NSM＆O to management equipment send network function shrink request message before, the method further includes：

First NSM＆O sends a notification message to network manager NM, and the notification message is used to notifying described in the NM the One NSM＆O needs to carry out shrink process to the network function；

First NSM＆O receives confirmation message from the NM, and the confirmation message is used to indicate the first NSM＆O to described Network function carries out shrink process.
5. method according to any one of claim 1 to 4, it is characterised in that the first NSM＆O is set from the management After feedback message is shunk in standby reception, and the first NSM＆O updates storage the institute stored in device according to the feedback message Before the information for stating target NSI, the method further includes：

First NSM＆O sends resource allocation request message to virtualized infrastructure manager VIM, and the resource allocation please Message is asked to be used to ask the VIM to discharge the idling-resource after the network function is shunk；

First NSM＆O receives resource allocation feedback message from the VIM；

First NSM＆O includes according to the information that the contraction feedback message updates storage the target NSI stored in device：

First NSM＆O is updated in the memory according to the contraction feedback message and the resource allocation feedback message to be deposited The information of the target NSI of storage.
6. method according to any one of claim 1 to 5, it is characterised in that when the network function is shared network During function, the method further includes：

First NSM＆O updates the information of the association NSI stored in the memory according to the contraction feedback message, described It is the NSI that the shared network function is used in conjunction with the target NSI to associate NSI.
7. the method according to any one of claim 3 to 6, it is characterised in that the first NSM＆O obtains NSI and shrinks Request message, including：

First NSM＆O obtains the NSI shrink requests message that the 2nd NSM＆O is sent.
A kind of 8. method for shrinking network section example, it is characterised in that the described method includes：

Management equipment receives network function shrink request message from network section management with composer NSM＆O, wherein, the management Equipment is used for the network function to be shunk of management objectives network section example NSI, and the NSM＆O is used for example of cutting into slices to network NSI is managed and layout；

The management equipment carries out shrink process according to the network function shrink request message to the network function；

The management equipment is sent to the NSM＆O shrinks feedback message, and the contraction feedback message is used to feed back the network The result of the shrink process of function.
9. according to the method described in claim 8, it is characterized in that, the management equipment includes virtual network function manager VNFM, the network function include the first virtual network function VNF examples,

The management equipment carries out shrink process according to the network function shrink request message to the network function to be included：

The VNFM, which performs the first VNF examples according to the network function shrink request message, shrinks feasibility inspection；

The VNFM shrinks the first VNF examples in the contraction feasibility passed examination.
10. method according to claim 8 or claim 9, it is characterised in that the management equipment includes NE Explorer EM, institute Stating network function includes the 2nd VNF examples, and the 2nd VNF examples are the VNF examples of network manager NM generations,

When the network function request message is used to ask to stop the service of the 2nd VNF examples, the contraction feedback disappears The service that breath is used to feed back the 2nd VNF examples has been stopped.
11. it is a kind of shrink network section example device, it is characterised in that described device be used for network cut into slices example NSI into Row management and layout, described device include processing unit and communication unit,

The processing unit is used to send network function shrink request message to management equipment by the communication unit, wherein, The management equipment is used for the network function to be shunk of management objectives NSI, and the network function shrink request message is used for please The management equipment is asked to carry out shrink process to the network function；And for being set by the communication unit from the management Standby receive shrinks feedback message, and the feedback message that shrinks is used for the shrink process that the management equipment feeds back the network function Result；And for updating storage the information of the target NSI stored in device according to the contraction feedback message.
12. according to the devices described in claim 11, it is characterised in that the processing unit is specifically used for：

When the network function is the privately-owned network function of the target NSI, set by the communication unit to the management Preparation send the network function shrink request message；Or

It is the target NSI and the shared network function for associating NSI in the network function, and shrinks the network function not shadow When ringing the service of the association NSI, the network function shrink request is sent to the management equipment by the communication unit Message, wherein, the association NSI is the NSI that the network function is used in conjunction with the target NSI.
13. the device according to claim 11 or 12, it is characterised in that the processing unit is additionally operable to：

NSI shrink request message is obtained, wherein, the NSI shrink requests message includes the identification information of the target NSI, institute NSI shrink requests message is stated to be used to ask described device to carry out shrink process to the target NSI；And for according to the mark Know the network section template NSLD that information determines the target NSI；And for determining the network function according to the NSLD.
14. device according to claim 13, it is characterised in that the processing unit is additionally operable to：

Sent a notification message by the communication unit to network manager NM, the notification message is used to notify described in the NM Device needs to carry out shrink process to the network function；And disappear for receiving confirmation from the NM by the communication unit Breath, the confirmation message are used to indicate that the first NSM＆O carries out shrink process to the network function.
15. the device according to any one of claim 11 to 14, it is characterised in that the processing unit is additionally operable to：

Resource allocation request message, the resource point are sent to virtualized infrastructure manager VIM by the communication unit It is used to ask the VIM to discharge the idling-resource after the network function is shunk with request message；And for by described logical Believe that unit receives resource allocation feedback message from the VIM；And for according to the contraction feedback message and the resource point The information of the target NSI stored in the memory is updated with feedback message.
16. the device according to any one of claim 11 to 15, it is characterised in that when the network function is shared net During network function, the processing unit is additionally operable to：

The information of the association NSI stored in the memory is updated according to the contraction feedback message, the association NSI is and institute State the NSI that target NSI is used in conjunction with the shared network function.
17. the device according to any one of claim 13 to 16, it is characterised in that the processing unit is specifically used for：

Obtain the NSI shrink requests message that the section management of the second network is sent with composer NSM＆O.
18. a kind of device for shrinking network section example, it is characterised in that described device is used for management objectives network section example The network function to be shunk of NSI, described device include processing unit and communication unit,

The processing unit is used to manage from network section by the communication unit and composer NSM＆O receives network function and receives Contracting request message；And for carrying out shrink process to the network function according to the network function shrink request message；With And feedback message is shunk for being sent by the communication unit to the NSM＆O, the contraction feedback message is used to feed back institute State the result of the shrink process of network function.
19. device according to claim 18, it is characterised in that described device includes virtual network function manager VNFM, the network function include the first virtual network function VNF examples,

The processing unit is specifically used for：

The first VNF examples are performed according to the network function shrink request message and shrink feasibility inspection；And it is used for The first VNF examples are shunk in the contraction feasibility passed examination.
20. the device according to claim 18 or 19, it is characterised in that the management equipment includes NE Explorer EM, The network function includes the 2nd VNF examples, and the 2nd VNF examples are the VNF examples of network manager NM generations,

When the network function request message is used to ask to stop the service of the 2nd VNF examples, the contraction feedback disappears The service that breath is used to feed back the 2nd VNF examples has been stopped.