CN109688010A

CN109688010A - A kind of method and system of generation and the management of content network

Info

Publication number: CN109688010A
Application number: CN201811630210.3A
Authority: CN
Inventors: 靳浩; 陆海亚; 赵成林; 彭木根; 王文博
Original assignee: Beijing University of Posts and Telecommunications
Current assignee: Beijing University of Posts and Telecommunications
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2019-04-26
Anticipated expiration: 2038-12-29
Also published as: CN109688010B

Abstract

This application discloses a kind of generation of content network and management methods, comprising: collects content service information, the content service of registration is generated multiple content services and is sliced by registration content service, and is generated each content service and be sliced corresponding content service configuration information；It is sliced for any content service, according to the content service information and content service configuration information of collection, configures any content service and be sliced corresponding virtual content network；For each virtual content network, is formed according to the inside of the virtual content network and generate content service business function chain；According to the networking configuration information of virtual content network and the content service business function chain, by virtual content network mapping into physical infrastructure.Content network is generated and managed using the application, it not only can be improved and the flexibility and scalability of content service be provided, the service efficiency of content networking resource can also be improved, it reduces and the operation cost (OpEx) and investment spending (CapEx) cost of content service is provided, improve Quality of Service Experience when user uses content service.

Description

A kind of method and system of generation and the management of content network

Technical field

This application involves content networking technology, in particular to the method and system of generation and the management of a kind of content network.

Background technique

With the rapid development of smart machine, user starts to subscribe to and uses more and more Internet services.At these In Internet service, content service occupies the Internet resources of a big chunk mobile radio access network and core network.No Only the demand of user's request content business is gradually increased, and user is distributed content to based on the mode from media on network The demand of other users is also increasing rapidly.

For the business based on content, since user generally only focuses on content information itself, it is not relevant for content Position, in order to meet the great demand of user content business, information centre's network (ICN) networking paradigms new as one are mentioned Out.In the information in heart network, content information is based on content and is identified, named and routing, and no longer as traditional IP network It is named by the way of based on address and routing like that.As content consumer, user, can be direct in request content The content information of needs is obtained from the routing node for be cached with request content, and the content from core network is no longer needed to take These contents are obtained on business device.In addition, user can also upload content to content caching based on the identity of content provider The routing node of ability.

Nevertheless, in the content, there are still the high content informations of popularity to be delayed by the content of many places equipment in heart network Storage, the higher content of user's repetitive requests popularity, duplicate content-data cause to occupy in more in transmission over networks The problem of content network resource.In order to further decrease the service time delay of content service, improve user's request content hit rate and To the utilization rate of the communication resource, on the one hand, content network disposes content caching resource in the edge device of network.That is, In the edge router, Radio Access Network of transmission network base station, micro-base station, on wireless access point even user equipment Content caching can be disposed, cache contents information is used to；On the other hand, since content service user disperses, in order to drop Low infrastructure provider/operator provides the operation cost of content service and the expenditure of lower deployment cost, empty based on network function Quasi-ization (NFV) and the network microtomy of SDN generate and manage the network slice based on content service, have become operator and mention For customizing the hot research direction of content service and having promising solution.

Physical network function and Internet resources are logically effectively separated by network function virtualization, and net can be improved The flexibility and scalability of network function distributing, wireless network virtualizes (WNV) and is based on network function virtualization technology, by physics The resource of wireless network is virtualized, according to different business for service provider provide different virtual radio access network and Distribute specific radio resource；SDN can then effectively complete data plane and control the separation of plane；Network slice be then by One physical network is divided into the virtual network with different resource being logically independent of each other, so as to provide different hang down Straight deployment business.Therefore, content service solution is disposed in mobile wireless network based on SDN and NFV, can not only provided The edge content network of customization is disposed, but also can reduce the content service portion of content service provider and infrastructure provider The time delay of cost (CapEx), the operation cost (OpEx) of content network and mobile content service user are affixed one's name to, while can also be dropped Low mobile subscriber requests bring network flow when the content service data in core network to be born.

Currently, the research achievement for virtual content network is concentrated mainly on two aspects, needle is on the one hand primarily focused on Virtual content distribution network (vCDN) is studied, is virtualized based on network function, by the content based on multimedia service point The virtualization of function of hairnet network is melted into virtual machine (VM), or will be divided into volume for the function that multimedia service data is handled The virtual network functions such as code device (Transcoder), stream (Streamer), compressor (Compressor), mixer (Mixer) (VNF) component carries out combined optimization deployment based on SLA and/or cost and/or virtual resource, vCDN is mapped to physical network In topology, the vCDNaaS solution of (virtual CDN as a Service) is provided；On the other hand it then lays particular emphasis in movement In Radio Access Network, combining information central site network is completed based on the isomery mobile radio access network frame centered on information Virtualization resource based on calculating, caching, Internet resources distributes optimization, provides CaaS (Caching as a Service) solution Scheme.In above two scheme, wherein the first scheme does not account for the working mechanism and industry of information centre's content network The demand of business publisher, service subscribing person, content supplier etc., carries out just for the processing function of content service data flow Optimization deployment based on NFV；Most of second of solution does not consider the virtualization of function of content network, only lays particular emphasis on virtual The combined optimization problem of cost when resource and support content service, for example, research is in mobile radio access network based on virtual The resource allocation problem of information centre's network is given in the information centre's network for supporting D2D communication about virtual resource allocation With the Optimization Modeling method of content caching strategy；There are also document combining wireless network virtualization technology and information centre's network skills Art has modeled the combined optimization problem including network, frequency spectrum resource distribution and virtual cache, and has been based on theory of games, modeling Cost optimization problem etc. when more service providers' offer content services.

It can be seen that there is presently no see the generation virtual content net for having disclosed and delivering from current finding Network and the solution for managing the content network, and the generation and management system, device and side of specific virtual content network Method.

Summary of the invention

The application provide a kind of content network generate, management method and device, can be generated based on virtual content network and Manage content network.

To achieve the above object, the application adopts the following technical scheme that

A kind of generation and management method of content network, comprising:

Content service information is collected, the content service of registration is generated multiple content services and is sliced by registration content service, and It generates each content service and is sliced corresponding content service configuration information；

It is sliced for any content service, according to the content service information and content service configuration information of collection, configures institute It states any content service and is sliced corresponding virtual content network；

For each virtual content network, is formed according to the inside of the virtual content network and generate content service business function Chain；According to the networking configuration information of virtual content network and the content service business function chain, by virtual content network mapping Into physical infrastructure；

Each virtual content network-caching virtual content information, and record the virtual content information and cached in virtual content With the mapping between physical content caching；The content service request for receiving user in virtual network, searches corresponding virtual content Virtual content cache location where information, control virtual content are buffered in the mapping relations between inquiry and physical content caching After distribute content information；For the content uploading request of content publisher, the record content publisher hair in virtual content caching The virtual content information of cloth, control content publisher uploads to content information in the caching of the physical content belonging to it, for interior The upload content migration request for holding publisher, carries out the migration of content caching position.

Preferably, the multiple content services slices of the content service generation by registration include:

According to the content service information, layout is carried out for the content service, by content service layout at support base It is sliced in the content service of different angle；Wherein, the different angle includes: angle based on personal content publisher, is based on The angle of content service provider and/or angle based on different SLA requirements.

Preferably, the corresponding virtual content network of any content service slice that configures includes:

According to the content service information, content service configuration information and infrastructure information is come from, in layout virtually Content network generates virtual content network organizing information；

According to the virtual content network organizing information, placed in virtual in the virtual content caching of virtual content network Hold entry, and provides the attribute of each virtual content information；

Result and the virtual content network organizing information are placed according to virtual content, virtual content network organizing is generated and matches Confidence breath, and it is corresponding virtual interior according to virtual content network organizing configuration information configuration any content service slice Content network；

Wherein, the virtual content network organizing information include: virtual content proxy information, virtual content cache information, The binding of the strategy setting and/or virtual content caching and virtual content agency of virtual content caching, the attribute includes: content Provider's information, personal distributor information, content service provider's information, content copyright protection limitation and/or virtual content entry are excellent Change and place restricted information, virtual content network organizing configuration information includes: virtual content network agent relevant information, virtual content The information of collaboration and/or control planning between network agent, the related information of virtual content agency and virtual content caching, void The virtual content entry and its attribute information cached in the strategy and/or virtual content caching of quasi- content caching.

Preferably, it is described according to the inside of the virtual content network form generate content service business function chain include: pair The virtual content network carries out function segmentation, is partitioned into different virtual content network function components；According to segmentation result, Function layout is carried out to the virtual content network, confidence is matched according to the networking of function layout result and the virtual content network Breath generates the virtual content service business function chain of control plane and data plane；

Wherein, virtual content network function component includes: that content name, content identification, content identification and network path reflect It penetrates, content service request processing, content search, content service processing collaboration, content optimization is placed and path optimization, content caching Management, the content service data for controlling plane relay, the content service data of data plane relay.

It by virtual content network mapping include: according to content service layout knot into physical infrastructure preferably, described The layout and optimization of fruit, virtual content network organizing layout result, virtual content network function layout result, virtual content network As a result, by the virtual content network mapping to the resource of infrastructure.

Preferably, this method further comprises: the state of monitoring virtual content network manages the life of virtual content network Period, manage virtual content network in content service business function chain, carry out virtual content network virtual resource distribution, Optimization is updated and is deleted.

Preferably, this method further comprises: current for the corresponding physical content network of any virtual content network Resource state information and service status information, are based on optimisation strategy and rule, and completion optimizes for content service slice, is virtual interior Content network optimization, virtual content network service function chain, physical content network Optimal Decision-making, and formed optimization Coordination Decision knot Fruit.

Preferably, the optimisation strategy and rule are as follows: when physical content network is unable to satisfy specified content network performance When index, according to physical content network level, virtual content network level, content service slice level optimization order successively into Row optimization.

Preferably, this method further comprises: being sliced corresponding physical content network for content service and carry out performance prison It surveys；Based on particular characteristic index, content service slice is assessed, and assessment result is made decisions, or according to reception The content network optimization collaborative controller assessment decisions result make decisions；If content service slice needs to optimize, It is then optimized for content service slice, alternatively, based on the received at the combined optimization control result information or optimization Reason notification information optimizes；If you do not need to optimization, then continue to monitor content service slice.

Preferably, this method further comprises: carrying out performance prison for the corresponding physical content network of virtual content network It surveys；It based on particular characteristic index, is assessed according to networking performance of the performance monitoring results to virtual content network, and specific aim Energy assessment result makes decisions, or the assessment decisions result based on the received content network optimization collaborative controller carries out The judgement of virtual content network organizing；When needing to carry out virtual content network organizing layout optimization, virtual content network is carried out Networking layout optimization, alternatively, the combined optimization control result information or the progress of optimization processing notification information are excellent based on the received Change；When not needing to carry out virtual content network organizing layout optimization, continue to the corresponding physical content net of virtual content network Network is monitored.

Preferably, this method further comprises: carrying out performance monitoring to each virtual content network, referred to based on particular characteristic Mark, currently combines relevant performance with function and/or function for virtual content network and is assessed, provide assessment result；Root Assessment decisions result according to the assessment result or the received content network optimization collaborative controller judges virtual content Whether network function, which needs, optimizes；If necessary to optimize, then start corresponding function optimization layout process, alternatively, according to reception The combined optimization control result information or optimization processing notification information optimize；If you do not need to optimization, then continue to supervise Survey the performance of the virtual content network.

Preferably, this method further comprises: receiving the optimization Coordination Decision of the virtual content network as a result, base The adaptive adjustment of the corresponding physical content network of virtual content network is completed in the information；

The resource state information for collecting and monitoring the physical content network that all virtual content network mappings generate, according to institute Resource state information is stated, the Service Quality Metrics based on content service slice and/or virtual content network are sliced content service And its affiliated corresponding physical content network of each virtual content network carries out Performance Evaluation；Judged according to performance evaluation result Whether specific content business slice and its affiliated corresponding physical content network of each virtual content network need to optimize, or The assessment decisions result of the content network optimization collaborative controller determines the need for optimizing based on the received；If no It needs to optimize, then continues to monitor the corresponding resource state information of physical content network；If necessary to optimize, then according to the performance Networking layout of the assessment result to physical content network, virtual content network, virtual content network function, virtual content network And/or content service slice optimizes, alternatively, the combined optimization control result information or optimization processing are logical based on the received Know that information optimizes.

Preferably, the virtual content network generated includes: in virtual content network controller, virtual content are acted on behalf of, are virtual Hold caching, virtual link and virtual content entry；

This method further comprises: virtual content network controller acts on behalf of virtual content in management virtual content network Administrative relationships, joint, collaboration and/or control planning, virtual content agency and virtual content between each virtual content agency Control planning between caching, the corresponding relationship between virtual content agency and the virtual content entry belonging to it, and it is virtual Mapping relations between content caching and virtual content entry.

Preferably, this method further comprises: receiving for the corresponding physical content network of virtual content Internet resources Resource using information, network state information and service content solicited message, life cycle based on the virtual content network, Content service configuration information, the virtual content between the virtual content network and the content service of service provider slice The networking of network and function layout status information and service status information determine the network state letter of the virtual content network It ceases, and assesses the performance of the virtual content network and its corresponding physical content network, root according to the network state information According to assessment result performance indicator corresponding with this virtual content network, starts optimization policing rule is carried out based on virtual content Entry control and/or virtual content agency joint relevant to virtual content buffer control and/or virtual content agentbased control are excellent Change, judges whether the optimum results meet the corresponding performance indicator of this virtual content network, if meeting corresponding performance indicator, The optimum results are then sent to relevant to this suboptimization virtual content caching, virtual content is acted on behalf of, and by optimal control knot The corresponding change in resources information of fruit notifies virtual content network manager；If corresponding performance indicator can not be met, by institute It states performance evaluation result and is sent to virtual content network manager, so that the completion of virtual content network manager is virtual interior for this The optimization of content network.

Preferably, the content service request for receiving user in virtual content network includes the search request for content With the content uploading request based on content publisher, and the request of the content migration from content publisher.

Preferably, it is described search corresponding virtual content information where virtual content cache location include: each virtual Content agent is extracted content service request information from content service request table undetermined and is parsed, and is looked into according to parsing result Look for the content item in the virtual content caching of this virtual content agentbased control；If finding corresponding content item, remember Record virtual content entry information and corresponding physical content location information cache；If can not find out corresponding content item, root According to the relationship between different virtual contents agency, corresponding content service request is sent to other virtual contents agency.

Preferably, this method further comprises: after receiving the request for cancelling specified content service slice, for please seek The content service to disappear is sliced corresponding virtual content network, monitors the service of the current content service request of the virtual content network State；When the content service request that confirmation is not completed not yet, for virtual content net corresponding with content service slice Network and its corresponding physical content network discharge relevant with corresponding virtual content network and its corresponding physical content network All the elements network function component and its relevant resource delete relevant physical content network and its corresponding virtual content net Network, and delete corresponding contents business slice information and its corresponding content service arrangement information and service registration information.

A kind of generation and management system of content network, comprising: content service composer, virtual content network organizing layout Device, content network virtualization of function function composer, virtual content network manager, infrastructure manager, virtual content net Network controller, virtual content agency, virtual content caching；

The content service composer, for collecting content service information, registration content service, by the content service of registration Multiple content service slices are generated, and generates each content service and is sliced corresponding content service configuration information；

The virtual content network organizing composer, for matching confidence according to the content service information of collection and content service Breath configures any content service and is sliced corresponding virtual content network；

The content network virtualization of function function composer, for the functional unit based on virtual content network, and The inside of each virtual content network forms, the function of layout virtual content network, and generates content service business function chain；

The virtual content network manager is managed for multiple virtual content networks；

The infrastructure manager, for according to virtual content network networking configuration information and the content service industry Business function chain, by multiple virtual content network mappings into physical infrastructure；

The virtual content network controller, is managed for single virtual content network；

The virtual cache is used for cached virtual content information, and it is slow in virtual content to record the virtual content information Deposit the mapping between physical content caching；

The virtual content agency searches corresponding virtual content letter for receiving content service request from the user Virtual content cache location where ceasing, after control virtual content is buffered in the mapping relations between inquiry and physical content caching Distribute content information；For the content uploading request of content publisher, the record content publisher publication in virtual content caching Virtual content information, control content publisher uploads to content information in the caching of the physical content belonging to it, for content The upload content migration of publisher is requested, and the cache location migration of content is carried out.

Preferably, the content service composer, is further used for according to the content service information, for the content Service carries out layout, and content service layout is sliced at the content service based on different angle；Wherein, the different angle packet It includes: the angle based on personal content publisher, the angle based on content service provider and/or the angle based on different SLA requirements.

Preferably, the virtual content network organizing composer, is further used for according to the content service information, content Service profile information and status information from infrastructure, layout virtual content network generate virtual content network organizing Information；According to the virtual content network organizing information, virtual content is placed in the virtual content caching of virtual content network Entry, and provide the attribute of each virtual content information；Result and the virtual content network organizing are placed according to virtual content Information generates virtual content network organizing configuration information, and according to virtual content network organizing configuration information configuration Any content service is sliced corresponding virtual content network；

Wherein, the virtual content network organizing information include: virtual content proxy information, virtual content cache information, The binding of the strategy setting and/or virtual content caching and virtual content agency of virtual content caching, the attribute includes: content Provider's information, personal distributor information, content service provider's information, content copyright protection limitation and/or virtual content entry are excellent Change and place restricted information, virtual content network organizing configuration information includes: virtual content network agent relevant information, virtual content Related information, the virtual content of virtual link information, virtual content agency and virtual content caching between network agent cache Strategy and/or virtual content caching in the virtual content entry that caches and its attribute information.

Preferably, the content network virtualization of function function composer, is further used for the virtual content network Function segmentation is carried out, different virtual content network function components is partitioned into；According to segmentation result, to the virtual content net Network carries out function layout, according to the networking configuration information of function layout result and the virtual content network, generates control plane With the virtual content service business function chain of data plane；

Wherein, virtual content network function component includes: that content name, content identification, content identification and network path reflect It penetrates, virtual content agency, content search, act on behalf of Collaborative Control, content optimization is placed and path optimization, content caching management, control The content service data relaying of plane processed, the content service data of data plane relay.

Preferably, the infrastructure manager, is further used for according to content service layout result, virtual content network Networking layout result, virtual content network function layout result, the layout of virtual content network and optimum results, will be described virtual Content network is mapped in the resource of infrastructure.

Preferably, the system further comprises virtual content network manager, for monitoring the shape of virtual content network State manages virtual content Network morals, manages the content service business function chain in virtual content network, carries out virtual Distribution, optimization, update and the deletion of the virtual resource of content network.

Preferably, the system further comprises content network optimization collaborative controller, for receiving targets manager/volume Whether the status information and/or assessment result information for arranging device need to optimize, assessment are tied according to the assessment decisions of docking collection of letters breath Fruit notifies each targets manager/composer；When not needing optimization, each targets manager/composer is notified to continue network Status monitoring；When needing to optimize, information completes the collaboration optimization of content network based on the received, by combined optimization control result Information is sent to the targets manager/composer for needing to optimize, alternatively, the mesh that information judgement needs to optimize based on the received Manager/composer is marked, and corresponding targets manager/composer is notified to optimize processing；

Wherein, the targets manager/composer is content service composer, content network virtualization of function function layout Device, virtual content network organizing composer, virtual content network manager, infrastructure manager.

Preferably, the content service composer, is further used for being sliced corresponding physical content net for content service Network carries out performance monitoring；Based on particular characteristic index, content service slice is assessed, and assessment result is made decisions, Or the assessment decisions result of the content network optimization collaborative controller makes decisions based on the received；If content service is cut Piece needs to optimize, then optimizes for content service slice, alternatively, the combined optimization control result letter based on the received Breath or optimization processing notification information optimize；If you do not need to optimization, then continue to monitor content service slice.

Preferably, the virtual content network organizing composer, for being directed to the corresponding physical content of virtual content network Network carries out performance monitoring；Based on particular characteristic index, according to performance monitoring results to the networking performance of virtual content network into Row assessment, and made decisions for performance evaluation result, or based on the received content network optimization collaborative controller Assessment decisions result carries out the judgement of virtual content network organizing；When needing to carry out virtual content network organizing layout optimization, into The networking layout of row virtual content network optimizes, alternatively, based on the received at the combined optimization control result information or optimization Reason notification information optimizes；When not needing to carry out virtual content network organizing layout optimization, continue to virtual content network Corresponding physical content network is monitored.

Preferably, the content network virtualization of function function composer, is further used for each virtual content network Performance monitoring is carried out, particular characteristic index is based on, currently combines relevant property with function and/or function for virtual content network It can be carried out assessment, provide assessment result；Judge whether virtual content network function needs to optimize, or described interior based on the received The assessment decisions result of content network optimization collaborative controller judges whether to need to optimize；If necessary to optimize, then starting is corresponding Function optimization layout process, alternatively, based on the received the combined optimization control result information or optimization processing notification information into Row optimization；If you do not need to optimization, then continue the performance for monitoring the virtual content network.

Preferably, the infrastructure manager, is further used for receiving the optimization association of the virtual content network The same result of decision completes the adaptive adjustment of the corresponding physical content network of virtual content network based on the information；

The resource state information for collecting and monitoring the physical content network that all virtual content network mappings generate, according to institute Resource state information is stated, the Service Quality Metrics based on content service slice and/or virtual content network are sliced content service And its affiliated corresponding physical content network of each virtual content network carries out Performance Evaluation；Judged according to performance evaluation result Whether specific content business slice and its affiliated corresponding physical content network of each virtual content network need to optimize, or The assessment decisions result of the content network optimization collaborative controller determines the need for optimizing based on the received；If no It needs to optimize, then continues to monitor the corresponding resource state information of physical content network；If necessary to optimize, then according to the performance Assessment result, to virtual content network, virtual content network function, the networking layout of virtual content network and/or content service It is sliced corresponding physical content network to optimize, alternatively, the combined optimization control result information or optimization based on the received Processing notification information optimizes.

Preferably, the system further comprises virtual content network controller, provided for receiving for virtual content network Resource using information, network state information and the service status information of the corresponding physical content network in source, based on described virtual Content service between the content service slice of the life cycle of content network, the virtual content network and service provider is matched Confidence breath, the networking of the virtual content network and function layout status information, determine the network-like of the virtual content network State information, and assess according to the network state information property of the virtual content network and its corresponding physical content network Can, according to assessment result performance indicator corresponding with this virtual content network, starts optimization policing rule is carried out based on virtual Content item control and/or virtual content agency are relevant to virtual content buffer control and/or virtual content agentbased control Optimization is closed, judges whether the optimum results meet the corresponding performance indicator of this virtual content network, if meeting corresponding performance The optimum results are then sent to virtual content caching relevant to this suboptimization by index, virtual content is acted on behalf of, and optimization is controlled The corresponding change in resources information of result processed notifies virtual content network manager；If corresponding performance indicator can not be met, The performance evaluation result information is sent to virtual content network manager, so that the completion of virtual content network manager is directed to The optimization of the virtual content network.

Preferably, virtual content agency, it is further used for receiving the content service request, and by the content service Request, which is put into content service request table undetermined, to be lined up；Content service is extracted from content service request table undetermined to ask Information is asked to be parsed；When content service request is content information search request, this virtual content is searched according to parsing result Content item in the virtual content caching of agentbased control；If finding corresponding content item, virtual content item is recorded Mesh information and corresponding physical content location information cache；If can not find out corresponding content item, according to different virtual interior Hold joint, collaboration and/or the control planning between agency, corresponding content service request is sent to other virtual contents generation Reason；When content service request is content information upload request, the void of record content publisher publication in virtual content caching Quasi- content information, control content publisher upload to content information in the physical content caching belonging to it；When content service is asked When Seeking Truth content migration is requested, the content of migration, the cache location migration of complete cost content are required for content publisher.

As seen from the above technical solution, in the application, content service information is collected, registration content service will be in registration Hold the multiple content service slices of service creation, and generates each content service and be sliced corresponding content service configuration information；For Any content service slice configures content service slice according to the content service information and content service configuration information of collection Corresponding virtual content network；For each virtual content network, is formed according to the inside of the virtual content network and generate content Service business function chain (SFC:Service Function Chain)；According to the networking configuration information of virtual content network and interior Hold service business function chain, by virtual content network mapping into physical infrastructure；Each virtual content network-caching is virtual Content information, and record mapping of the virtual content information between virtual content caching and physical content caching；Receive virtual net The content service request of user in network, searches the virtual content cache location where corresponding virtual content information, and control is virtual Content caching distributes content information after the mapping relations between inquiry and physical content caching；For the content of content publisher Upload request, the virtual content information of record content publisher publication, control content publisher will be interior in virtual content caching Appearance information uploads in the physical content caching belonging to it, requests for the upload content migration of content publisher, carries out content Cache location migration.By the above-mentioned means, content network can be generated and be managed based on virtual content network, can not only mention Height provides the flexibility and scalability of content service, can also improve the service efficiency of content networking resource, reduces in providing Hold the operation cost (OpEx) and investment spending (CapEx) cost of service, improves service quality when user uses content service Experience.

Detailed description of the invention

Fig. 1 is a kind of function structure schematic diagram for carrying out layout and management to virtual content network based on MANO；

Fig. 2 is based on the relation schematic diagram between management and layout the content service slice generated and virtual content network；

Fig. 3 is the institute of virtual content agency and its affiliated virtual content caching and virtual link resource in virtual content network Belong to relation schematic diagram；

Fig. 4 is a kind of relation schematic diagram in virtual content network between virtual content agency；

Fig. 5 is collaboration and control planning schematic diagram of a kind of virtual content agency when completing content service request；

Fig. 6 is a kind of virtual content network mapping showing into the isomery layering Radio Access Network for being deployed with content caching It is intended to；

Fig. 7 is the exemplary diagram of the business function chain of the control plane and data plane when completing content service request；

Fig. 8 is the composition schematic diagram for each functional module for including in content service composer；

Fig. 9 is the composition schematic diagram for each functional module for including in virtual content network organizing composer；

Figure 10 is the composition schematic diagram for each functional module for including in content network virtualization of function function composer；

Figure 11 is the composition schematic diagram for each functional module for including in virtual content network manager；

Control planning schematic diagram of the Figure 12 between virtual content network manager and virtual content network；

Figure 13 is the composition schematic diagram for each functional module for including in basic infrastructure manager；

Figure 14 is the submodule composition schematic diagram that basic facilities management module includes；

Figure 15 is a kind of composition schematic diagram of virtual content network；

Figure 16 is the composition schematic diagram for each functional module for including in virtual content network controller；

Figure 17 is the composition schematic diagram for each functional module for including in virtual content agency；

Figure 18 is the composition schematic diagram of each functional module in virtual content caching；

Figure 18 a is the functional module composition figure that content network optimizes collaborative controller；

Figure 18 b is the submodule composition that content network optimizes collaborative control pattern selecting module；

Figure 18 c is the flow chart that content network optimizes collaborative control pattern selection；

Figure 19 be this application involves each functional module optimization level schematic diagram；

Figure 20 is the flow diagram of virtual content network generation method；

Figure 21 is the virtual content network delet method process that the content service based on content service provider is sliced cancellation request Schematic diagram；

Figure 22 is to optimize the adaptive optimization tune for virtual content network that collaborative controller carries out based on content network The flow diagram of adjusting method；

Figure 23 is to be carried out based on infrastructure manager for the corresponding physical content network monitor of virtual content network With Optimization Progress schematic diagram；

Figure 24 is to be shown based on what virtual content network manager carried out for the monitoring of virtual content network and Optimization Progress It is intended to；

Figure 25 is the monitoring being sliced based on content service composer to content service and Optimization Progress schematic diagram；

Figure 26 is flow diagram when being handled based on virtual content network for a user content service request；

Figure 27 is that the process that the content uploading request based on user uploads content publisher when content is handled is illustrated Figure；

Figure 28 be one two layers honeycomb heterogeneous radio access networks network scene illustrate be intended to；

Figure 29 is the logical flow diagram of the Min-WH algorithm executed in infrastructure manager；

Figure 30 is the flow diagram of the Min-WH algorithm in virtual content network organizing composer；

Figure 31 is the flow diagram of the content network generation method based on Min-WH algorithm；

Figure 32 is the process signal for the adaptive optimization method of adjustment based on Min-WH of single virtual content network Figure；

Figure 33 is that basic infrastructure manager is based on Min-WH for the corresponding physical content network progress of virtual content network The flow diagram of monitoring and optimization；

Figure 34 is the stream that virtual content network manager is directed to that virtual content network is monitored and optimizes based on Min-WH Journey schematic diagram；

Figure 35 is that content service composer is shown based on the Min-WH process for being monitored and optimizing for content service slice It is intended to.

Specific embodiment

In order to which the purpose, technological means and advantage of the application is more clearly understood, the application is done below in conjunction with attached drawing It is further described.

The application from the angle of content service, propose a kind of content network based on virtual content network generate and Management method.By the way that the function of content network is virtualized, the content service demand based on content service provider, content construction Business slice, further generates virtual content network, using optimisation strategy, by virtual content network mapping to physical infrastructure In network, content network, and the state based on physical content network are generated, virtual content network is managed.Using based on virtual interior The content network of content network generates and management method, not only can be improved and provides the flexibility and scalability of content service, also The service efficiency of content networking resource can be improved, reduce and the operation cost (OpEx) and investment spending of content service are provided (CapEx) cost improves Quality of Service Experience when user uses content service.

The generation method of most basic content network includes: in the application

It, can also be to content service slice, virtual content network and the object of generation on the basis of above-mentioned generation method Reason content network is managed, including optimization, update and deletion etc..

Above-mentioned virtual content network is used to provide personalized content service for different content service provider.Fig. 1 provides one kind The function structure of virtual content network.

In the virtual content network architecture of Fig. 1, provide content service includes content supplier, content service provider, base Infrastructure provider, wherein

(1) content supplier: providing the content in content network, and provided content includes being believed based on copyrighted content The content information of breath and no copyright, also includes being uploaded based on the individual freedom from media services mode based on content publisher The content information of offer；

(2) content service provider: the content service related resource provided based on infrastructure provider runs content service, Provide a user content service；Provided content service include content supplier provide content, mentioned based on content publisher The content of confession；Optionally, infrastructure resources, the infrastructure based on rental are rented from infrastructure provider by content service provider The virtual content network of resource composition carries out the operation of content service, provides a user content service.Meanwhile content service provider is complete At for content service, content service slice, the management of virtual content network and layout function, correspond to aforementioned basic generation side In method generate content service slice, configuration virtual content network, generate content service business function chain processing, and with it is above-mentioned Relevant content network management；

(3) infrastructure provider: being responsible for physical facility and resource required for providing content network, can be to multiple interior Hold service provider and relevant to content service infrastructure services be provided, including but not limited to content caching resource and Internet resources with And complete the server of content network function；Meanwhile content service slice and virtual content network are also completed to physical facility money The mapping in source and resources configuration optimization set virtual content network mapping to physical basis corresponding in aforementioned basic generation method Processing in applying, and the management for respective physical content network.

To sum up, the generation of content network and management method are mainly content supplier, content service provider and base in the application The collaboration of Infrastructure provider carries out.Management and layout for content network include that service orchestration, networking layout and function are compiled Row, specifically, including following layout and management function:

(1) function, the virtualization resource for optimizing layout virtual content network, manage virtual content Network morals；

(2) response and the content service request of user is handled；

(3) mapping, virtual content Internet resources and the Physical Network between virtual content network and physical content network are provided Mapping between network resource.

Realize above-mentioned function, the functional entity related generally to is as shown in Figure 1, specifically include: content service composer, virtual Content network networking composer, content network virtualization of function function composer, virtual content network manager, infrastructure pipe Manage device, content network optimization collaborative controller and virtual content network.

(1) content service composer: this composer, which is mainly responsible for, generates the content service slice that different angle is set out, such as Content service slice based on different service providers, the content service based on the classification of content supplier's specific content are sliced, based on interior Hold the content service slice for having copyright restriction of publisher, the content service slice that the no copyright based on content publisher limits Deng；Meanwhile being managed for content service generated slice, generation including content service slice optimization, is updated, is deleted It removes and the life cycle management etc. of content service slice.

(2) virtual content network organizing composer: this composer is cut based on the content service that content service composer generates Piece carries out networking layout and optimization for the virtual content network for corresponding to content service slice, generates one or more virtual Content network, wherein each virtual content network includes virtual content network controller, virtual content is acted on behalf of, virtual content delays It deposits, virtual link and virtual content entry；

(3) it content network virtualization of function function composer: is mainly responsible for raw based on virtual content network organizing composer At virtual content network in virtual content agency, virtual content caching networking layout as a result, complete virtual content network Content service function chain (SFC:Service Function Chain), and it is optimized, content service function chain packet The business function chain of control plane and the business function chain of data plane are included, for the optimization of the business function chain in control plane Including but not limited to the segmentation optimization of functional unit, the Combinatorial Optimization based on the functional unit under specific function segmentation, for number Optimization according to the content service business function chain in plane includes path optimization when obtaining the content information for user；It is same It, can be real based on different network topologies and functional unit when a virtual content service business function chain is mapped on physical network Example is realized.

(4) function and performance of management virtual content network, including monitoring void virtual content network manager: are mainly responsible for The state of quasi- content network, is managed for virtual content Network morals；Manage the content in virtual content network Life cycle, update, deletion of business function chain etc.；It is allocated, optimizes, more for the virtual resource of virtual content network Newly, delete etc..

(5) management infrastructure resources relevant to content network, including network money infrastructure manager: are mainly responsible for Source, computing resource, content caching resource etc., the mapping and resource between completion virtual content network and physical content network are excellent Change distribution and scheduling；Periodic performance monitoring, and base are carried out for the corresponding physical content network of each virtual content network It is assessed in specific content network performance indicator, provides assessment result, and send the assessment result on the basis of itself Facilities management module and/or content network optimize collaborative controller, corresponding for virtual content network and/or virtual content network Physical content network optimize.

(6) content network optimizes collaborative controller: content network optimization collaborative controller is responsible for completing based on virtual content The collaboration of the content network of network struction optimizes.It is reported for infrastructure manager corresponding for some virtual content network The current resource state information and service status information of physical content network, be based on optimisation strategy and rule, complete for interior Hold service orchestration device, virtual content network organizing composer, content network virtualization of function function composer, virtual content network The combined optimization decision of manager, infrastructure manager, content network optimize collaborative controller and support centralization, semi With full distributed three kinds of collaborations Optimizing Mode.Specifically, content network optimizes collaborative controller according to each manager or layout The assessment result and network state information that device reports decide whether to need to optimize processing, when not needing optimization processing, lead to Know that each manager or composer continue to monitor；When needing to optimize processing, for centralization collaboration Optimizing Mode, Combined optimization control result is determined based on the content network optimization Collaborative Control module of itself, and notifies corresponding manager or volume It arranges device and completes optimization processing according to combined optimization control result information；For the collaboration Optimizing Mode of semi, determines and need The manager or composer of processing are optimized, and corresponding manager or composer is notified to complete optimization processing；For dividing entirely Cloth cooperates with Optimizing Mode, voluntarily carries out Performance Evaluation by each manager or composer, optimization is adjudicated and optimization.

(7) virtual content network: the virtual content network that aforementioned virtual content network networking composer generates includes virtual The functional modules such as content network controller, virtual content agency, virtual content caching, virtual content entry and virtual link.It is empty Quasi- content network can be by virtual content network organizing composer, content network virtualization of function function composer, virtual content The control of network manager etc., it is controlled to complete in virtual in terms of the mapping between virtual content network and physical content network Hold agency, virtual content caching, virtual link and server, physical content caching, physical communication chain in physical infrastructure Mapping between the physical resources such as road；It is controlled complete in terms of mapping between virtual content Internet resources and physical network resource It is placed at the optimization of mapping and content information between virtual content entry and physical content, it is ensured that multiple virtual content networks Between content information optimization place when content copyright limitation and isolation.Fig. 2 gives the content generated based on management and layout Relationship between business slice and virtual content network.

Illustratively virtual content agency, virtual content cache the pass between virtual link in virtual content network below System.Fig. 3 is the affiliated pass of virtual content agency and its affiliated virtual content caching and virtual link resource in virtual content network System.Wherein,

(a) virtual content network controller: the virtual content agency in control virtual content network, virtual content cache it Between virtual link, the control in this virtual content network between each virtual content agency is including but not limited to monitored and controlled Incidence relation between system/conspiracy relation, virtual content agency and virtual content caching；

(b) virtual content is acted on behalf of: being responsible in the content of processing content service request from the user and content publisher It passes request, upload content migration request；For the content service request of user, the corresponding content letter of content service request is searched Breath, the virtual content cache location where the content that record search arrives, control virtual content caching distribution content information；For interior Hold publisher's content uploading to request, the virtual content information of record content publisher publication in virtual content caching, in control Hold publisher to upload to content information in the physical content caching belonging to it；It is asked for the upload content migration of content publisher It asks, by corresponding content migration into suitable content caching；

(c) virtual content caches: being responsible for controlled cached virtual content information, controlled distribution virtual content information.Here Virtual content information refers to all the elements data entries that this virtual content network can provide, including but not limited to the content information Mark, classification, affiliated content supplier or/publisher, copyright protection restricted information and the content information life span Limitation；It records content information and caches the mapping between physical content caching in virtual content；Based on the excellent of virtual content agency Change control result information, believes to the user's distribution control relevant to the content-data mode is obtained for proposing content service request Breath, control propose that the user of content uploading request caches content uploading to corresponding physical content, or control proposes content The user of migration request, by content migration into specified content caching.

(d) virtual content: the content item being buffered in virtual content caching.

(e) it virtual link: between virtual content agency and between virtual content agency and virtual content caching, is used for It describes between association/control/conspiracy relation and virtual content agency and the virtual content caching between virtual content agency Incidence relation.Wherein, the association between virtual content agency refers between virtual content agency in control plane and data plane On only with data relay function when relationship；Control planning between virtual content agency refers to be had between virtual content agency Have control based on the superior and the subordinate with by control planning；Conspiracy relation between virtual content agency refers between virtual content agency There is conspiracy relation when completing content service request；Association between virtual content agency and virtual content caching refers to virtually The virtual content that content agent caches virtual content and its caches has control function.

The following detailed description of the relationship between virtual content network once and virtual content agency.

In virtual content network, one or more virtual content agency may include.It can be based on different contents The factors such as the diverse geographic location of classification, user and its preference categories and corresponding physical content network, by virtual content net Network and its resource are divided into belonging to different virtual content agencies, and virtual content acts on behalf of the content service request for accepting user, and Based on the content service request, the virtual content information in virtual content caching is searched for user, it is virtual interior according to what is found Hold information, to the user's distribution control information relevant to the content-data mode is obtained for proposing content service request.

Fig. 4 gives a kind of relationship in virtual content network between virtual content agency, including virtual content agency Between association, control and conspiracy relation, Fig. 5 gives a kind of virtual content and acts on behalf of association when completing content service request Same and control planning.Collaboration between virtual content agency is given below, controls, the meaning of incidence relation:

(a) incidence relation between virtual content agency: referring to can support between virtual content agency in data plane And/or as content-data/content service related control data relaying in control plane.

(b) control planning between virtual content agency: refer to the control formed between the virtual protocol in virtual network With by control planning, this control planning can be centralization, i.e., when control of the support based on hierarchy type between virtual protocol When relationship, the virtual content of low level-one acts on behalf of the control acted on behalf of by higher leveled virtual content, and low level-one content agent can not The content service request of satisfaction can be transmitted to higher leveled virtual content agency and be handled.

(c) conspiracy relation between virtual content agency: after referring to the content requests that virtual content agency receives user, When carrying out content search, can be completed based on the collaboration between virtual content agency for the interior of some content service request Hold and search, provides content service for user.

Content network service provider can possess multiple content service slices, can be based on interior between multiple content service slices Hold classification, distinguished based on coverage, between different content service slices and same content service slice is internal It can be required, be supported between different content service slices and/or the same content service based on content copyright protection limitation Collaboration, control and the incidence relation between virtual content agency inside slice.

Inside composition based on above-mentioned virtual content network, the mapping between virtual content network and physical content network can To carry out as follows:

Fig. 6 give it is a kind of by virtual content network mapping to deployment content caching isomery layering Radio Access Network in Schematic diagram.In Fig. 6, the virtual content agency in virtual content network is mapped in isomery layering Radio Access Network On one or more base station, virtual content caching is mapped on one or more physical content caching, virtual content net Virtual link in network is also mapped on the wire link and/or Radio Link in isomery layering Radio Access Network, is passed through The link of one jump or multi-hop supports control/collaboration/incidence relation between virtual content agency；In virtual content caching On the corresponding content cache location that virtual content is also respectively mapped in one or more physical content caching.

Based on the copyright protection restricted information to each virtual content entry, may be implemented in content network based on content The content information of copyright is protected and limitation, although supporting association, collaboration and control planning between that is, different virtual content agencies, But the virtual content entry with copyright protection mark in virtual content caching can only be mapped to and buy the content copyright Content and service provider corresponding physical content caching and virtual content caching in, and do not buy the interior of the content information copyright Hold in the virtual content caching of the virtual content network of service provider and the physical content caching of corresponding physical content network, The content information copy of no content copyright authorization cannot then be obtained.

Based on the Inner Constitution of above-mentioned virtual content network, when virtual content network support content service request, specifically Processing may include: the content requests that virtual content agency receives user, carry out content search for the content service request, It controls in plane, content service request is formed on the control plane by the different virtual contents agency in virtual content network Business function chain, complete be directed to content service request content search, obtain corresponding to the content service request it is virtual in Hold information and its obtains the mode of the virtual content entry；It is corresponding virtual for the content service request on data plane Content information and its acquisition modes are based on optimization algorithm, by transmission path of the optimization content information on data plane or The content information is placed in optimization, is obtained corresponding physical content Advance data quality acquisition modes, is formed the content service request in number According to the business function chain in plane.

When virtual content network support is from the content uploading service request of content publisher, specific processing may include: Virtual content acts on behalf of the content uploading service request for receiving and processing content publisher, uploads and takes to content publisher's returned content It is engaged in response message, physical content buffer address when content is uploaded comprising content publisher in the message；Accordingly, flat in control On face, content uploading service request forms a business function chain on the control plane；On data plane, content publisher Content information is uploaded in physical content caching, physical content, which caches to cache to send content service and upload to virtual content, to be confirmed Therefore message, virtual content caching addition this virtual content entry accordingly, on data plane, also form one for interior Hold the business function chain of service upload request.

Fig. 7 provides one in virtual content network when completion content service request, respectively in control plane, data plane An example and the mapping relations in the business function chain and physical infrastructure network for upper corresponding business function chain. As can be seen that the control plane and service plane of the business function chain of content service are separation in virtual content network, In physical infrastructure network, the path passed through in the control plane of the business function chain of content service, service plane can also be with It is different.

Below for each functional entity in content network generation system, the specific structure of each functional entity is discussed in detail At.

1, content service composer

Content service composer collects the content service from content service provider, personal content publisher, content supplier Information is based on content service information, provides the virtual network layout function of content service, is including but not limited to based on different services The content service network layout of quotient, has copyright limit based on content publisher at the content service network layout based on content supplier The content service network layout of system, the functions such as content service network layout based on the limitation of content publisher's no copyright, in generation Appearance business slice.

Fig. 8 gives the composition for each functional module for including in content service composer.Content clothes are provided individually below The major function for each functional module that business composer includes:

(1) content service information collection module: the module is responsible for collecting the relevant information of content service, including but not limited to The content service relevant information for the service user collected from virtual content Agency and the content clothes of personal content publisher Business relevant information, and the content service information collected from content service provider, content supplier.

(2) information exchange module: the module is responsible for and virtual content network organizing composer, content network virtualization of function Function composer, content service provider, content supplier, virtual content network manager, infrastructure manager, content network are excellent Change and carry out information exchange between collaborative controller, interactive information includes but is not limited to the content service registration letter of content service provider Breath, the content characteristic information of content supplier, its virtual content generation controlled based on the collection of virtual content network controller Manage content service preference information, the content service request characteristic information, personal content publisher's hair of the content service user collected Virtual content information of cloth etc., and the content service that content service layout exports later is carried out by this content service composer Configuration information further includes and virtual content network manager, virtual content network organizing composer, content network virtualization of function The control relevant to content network optimization and optimization collaboration of interaction between function composer, content network optimization collaborative controller Information.

(3) content service registration module: the module is responsible for registration content service provider, content supplier, personal content publication Person initiate content service, including but not limited to the mark of the content, classification, copyright ownership information, copyright protection restricted information, Mapping restricted information when the corresponding life span of content information and virtual content entry are mapped in content caching.

(4) content service describing module: the module is responsible for the content service registered based on content service registration module, for Content service is modeled and is described, and service is converted into technical language form, output content service configures contract information.

(5) content service orchestration module: the module configures contract information based on the content service of content service describing module, Content service for the registration of content service registration module carries out layout, by content service layout at support based on different angle Content service slice, the content service including but not limited to based on personal content publisher are sliced, based in content service provider Appearance business slice, the content service slice based on different SLA requirements；In addition, this module, which is based on content service, is sliced evaluation module The assessment result of the content service slice provided is cooperateed with based on optimisation strategy or based on what is received from content network optimization The optimal control information of controller, optimizes the content service layout of content service slice, and layout result is sent to content Service log module and content service configuration module.

(6) content service logging modle: the module is responsible for record through the updated content service of content service orchestration module The content service relevant information of slice.

(7) content service configuration module: the content service slice that the module is formed based on content service orchestration module layout Corresponding layout result information generates the content service and is sliced corresponding content service configuration information, and to virtual content network Networking composer, content network virtualization of function function composer export the content service configuration information of content service slice.

(8) content service is sliced monitoring modular: receiving from virtual content network manager and infrastructure manager It is sliced the performance monitoring results of corresponding physical content network for content service, and sends content service slice for this result Evaluation module and/or content network optimize collaborative controller.

(9) content service is sliced evaluation module: being based on particular characteristic index, assesses content service slice, provide The assessment result of content service slice；It based on particular characteristic index, is made decisions for the assessment result, if content service is cut Piece needs to optimize, then sends content service orchestration module for assessment result, is directed to the contents industry by content service orchestration module Business slice optimizes；If you do not need to optimization, then content of announcement business slice monitoring modular, which continues to monitor the content service, cuts Piece.

2, virtual content network organizing composer

Virtual content network organizing composer is sliced corresponding content according to the content service that content service composer provides Service profile information, the networking resources of layout virtual content network generate virtual content network.

Fig. 9 gives the composition for each functional module for including in virtual content network organizing composer.It gives individually below The major function of each functional module out:

(1) information exchange module: the module is mainly responsible for and content service composer, content network virtualization of function function Composer, virtual content network manager, infrastructure manager, content network optimize the information between collaborative controller and hand over Mutually, interactive information includes but is not limited to content service configuration information, virtual content network organizing relevant information, virtual content net Network function relevant information, the physical content network related information of virtual content network mapping, to content network optimization collaboration it is related Control information etc..

(2) virtual content network organizing orchestration module: the module is believed based on the content service from content service composer Breath, content service configuration information and the information from infrastructure manager, layout virtual content network, including but not limited to Virtual content proxy information, virtual content cache information, the strategy setting of virtual content caching and virtual content caching and void The binding of quasi- content agent, generates virtual content network organizing information；In addition, anti-based on virtual content network organizing evaluation module The virtual content network evaluation of feedback optimizes layout as a result, completing virtual content network organizing, or receives excellent from content network Change the optimal control information of collaborative controller, the networking for completing virtual content network optimizes layout, and output virtual content networking is compiled Result information is arranged to virtual content Web content placement module.

(3) virtual content Web content placement module: the module is exported according to virtual content network organizing orchestration module Virtual content networking layout is as a result, place virtual content entry in virtual content caching, and provide each virtual content information Attribute, which includes but is not limited to content provider information, personal distributor information, content service provider's information, content version Restricted information and the life span information corresponding to the content information are placed in power protection limitation, the optimization of virtual content entry；To The output of virtual content network organizing generation module places result comprising virtual content network organizing layout result and virtual content Virtual content network organizing information；

(4) virtual content network organizing generation module: the module is exported based on virtual content Web content placement module Virtual content places the virtual content network organizing information of result information, the output of virtual content network organizing orchestration module, generates Virtual content network organizing configuration information, and the virtual content network organizing configuration information is sent to the virtual content network information Logging modle；Virtual content network organizing configuration information including but not limited to virtual content network agent relevant information, it is virtual in Related information, the virtual content of virtual link information, virtual content agency and virtual content caching between content network agency delay The virtual content entry and its attribute information cached in strategy and the virtual content caching deposited.

(5) virtual content network information logging modle: the module is received and is recorded and generates from virtual content network organizing The virtual content network organizing configuration information of module；Virtual content network organizing configuration information is distributed to virtual content network pipe Manage device, content network virtualization of function function composer and infrastructure manager；Mould is generated based on virtual content network organizing The virtual content network organizing configuration information of block updates the networking layout change information of virtual content network, including but not limited to The relevant more new information of control/collaboration/incidence relation, virtual content agency in virtual content network between virtual content agency Related information between virtual content caching updates, the relevant more new information of virtual content entry placement information, virtual content The cache policy of caching more new information.

(6) it virtual content network organizing monitoring modular: receives and comes from virtual content network manager and infrastructure management The performance monitoring results for the corresponding physical content network of virtual content network of device, and virtual content is sent by this result Network organizing evaluation module and/or content network optimize collaborative controller.

(7) virtual content network organizing evaluation module: it is based on particular characteristic index, for the corresponding object of virtual content network The networking performance of reason content network is assessed, and performance evaluation result is provided；Virtual content net is carried out for performance evaluation result Network networking optimization judgement；When needing to carry out virtual content network organizing layout optimization, virtual content is sent by assessment result Network organizing orchestration module；When not needing to carry out virtual content network organizing layout optimization, virtual content network organizing is notified Monitoring modular continues to be monitored the corresponding physical content network of virtual content network.

3, content network virtualization of function function composer

Content network virtualization of function function composer is based on virtual content network function component, for virtual content network Functional unit be combined, generate virtual content network in content service function chain.

Figure 10 gives the composition for each functional module for including in content network virtualization of function function composer.Below The major function for the modules for including in Figure 10 is provided respectively:

(1) information exchange module: the module is mainly responsible for information exchange, including but not limited to this content network virtualization of function Change content service configuration information, this content network virtualization of function function interacted between function composer and content service composer Virtual content network organizing configuration information, this content network that can be interacted between composer and virtual content network organizing composer Interacted between virtualization of function function composer and infrastructure manager with virtual content network function component and its placement Between relevant physical resource more new information, this content network virtualization of function function composer and virtual content network manager Interactive virtual content network function relevant information, this content network virtualization of function function composer and content network optimization is assisted With the relevant control information of optimization Coordination Decision result of interaction between controller.

(2) content network virtualization of function function divides module: this module is used to complete the function segmentation of content network, will The function of content network is partitioned into different virtual content network function components, including but not limited to content name, content mark Know, content identification is cooperateed with network path mapping, content service request processing, content search, content service processing, content optimization Place and path optimization, content caching management, control plane content service data relaying, data plane content service data The functional units such as relaying.

(3) content network virtualization of function function orchestration module: this module is based on content network virtualization of function function point The content network function segmentation result for cutting module completes the virtualization of function function layout optimization of content network, i.e., virtual interior The content service function chain of layout and optimization control plane and data plane based on functional unit in content network；In addition, being based on The virtual content network function assessment result of virtual content network function evaluation module feedback, generates and exports optimal control result Information, or the optimization Coordination Decision from content network optimization collaborative controller is received as a result, optimizing the virtual content network Function layout, generate and export the function layout result of virtual content network to virtual content network function generation module.

(4) content network virtualization of function generation module: this module is based on content network virtualization of function function layout mould Block output the layout of virtual content network function as a result, and virtual content network organizing composer virtual content network organizing Configuration information generates the control plane of optimization and the content service function chain of data plane, and the result information is output to void Quasi- content network manager, virtual content network function information logging modle.

(5) virtual content network function information logging modle: this module is for receiving and recording from content network function The virtual content network function combined result information of virtualization orchestration module, and come from the layout of virtual content network organizing The virtual content network organizing result information of device；If the function of above-mentioned virtual content network, function combine result information and Corresponding virtual content network organizing layout result has update, then the update letter based on virtual content network function generation module Breath, the function of updating the virtual content network combines and its corresponding mesh information.

(6) it virtual content network function monitoring modular: receives and comes from virtual content network manager and infrastructure management The performance monitoring results for content network of device, and by this result be sent to virtual content network function evaluation module and/or Content network optimizes collaborative controller.

(7) virtual content network function evaluation module: being based on particular characteristic index, currently and function for virtual content network Energy and/or function combine relevant performance and are assessed, and provide assessment result；Virtual content network function is judged based on assessment result Whether can need to optimize, if necessary to optimize, then send content network functionalization function orchestration module for the assessment result, by Content network virtualization of function function orchestration module starts corresponding function optimization layout process, completes corresponding optimization process； If you do not need to optimization, then notify virtual content network function monitoring modular, continue the performance for monitoring the virtual content network.

4, virtual content network manager

Virtual content network manager is responsible for monitoring and managing the life cycle of each virtual content network, including the void Generation, update, the deletion of quasi- content network；Monitor and manage the existence week of the corresponding business function chain of each virtual content Phase, generation, update, the deletion of the business function chain including control plane and data plane；It is virtual interior to monitor and manage each The virtual resource that content network uses, including each the corresponding resource allocation of virtual content network, update, optimization.

Figure 11 gives the composition for each functional module for including in virtual content network manager.It is given below in virtual The major function for each functional module that content network manager includes:

(1) information exchange module: the module is mainly responsible for empty with virtual content network organizing composer, content network function Quasi-ization function composer, infrastructure manager, content network optimize the information between collaborative controller, virtual content network and hand over Mutually, virtual content network organizing of the interactive information including but not limited between virtual content network organizing composer is related believes Breath, the content network virtualization between content network virtualization of function function composer combine relevant information and basis Content network status related information between infrastructure manager is directed to specific virtual content network and its corresponding physical content net The relevant information that network is controlled, and what is interacted between content network optimization collaborative controller cooperate with relevant control with optimization Information processed.

(2) virtual content network monitoring module: the module, which is received, is directed to virtual content network from infrastructure manager Resource using information, network state information and the service status information of the corresponding physical content network of resource, it is virtual based on this Content service configuration between the content service slice of the life cycle of content network, the virtual content network and service provider Information, the networking of the virtual content network and function layout status information send out the network state information of the virtual content network Give virtual content network state evaluation module and/or content network optimization collaborative controller.

(3) virtual content network state evaluation module: the virtual content net of virtual content network monitoring module output is received The network state information of network assesses the performance of virtual content network and its corresponding physical content network, and output is for virtual interior The performance evaluation result of content network and its corresponding physical content network；Adjudicate whether the virtual content network needs to optimize, such as Fruit does not need to optimize, then notifies virtual content network monitoring module, continue monitor virtual content network resource state information and Service status information；If necessary to being optimized to virtual content network, then by the assessment result of virtual content network, corresponding Resource using status information and service status information are output to virtual content network optimization module.

(4) virtual content network optimization module: the virtual content net of virtual content network state evaluation module output is received Network performance evaluation result and resource state information and service status information are based on specific content network performance indicator, with this The content service configuration information and current resource state information and service status information of virtual content network are used as limitation, for Specific single virtual content network or multiple virtual content networks optimize, and the aspect of optimization includes but is not limited to optimize In the virtual content network virtual content agency between virtual link relationship (i.e. collaboration/control/incidence relation optimization), The capacity of virtual content caching is inserted into and removes the update of mechanism, virtual content entry for the content that virtual content caches, and gives Optimum results out；Or the optimal control information from content network optimization collaborative controller is received, and the optimum results are sent out Give virtual content network optimization result distribution module.

(5) it virtual content network optimization result distribution module: receives virtual interior from virtual content network optimization module Content network optimum results information, and by the optimum results information by information exchange module, be distributed to infrastructure manager and Virtual content network controller relevant to this suboptimization.

Figure 12 gives the control planning between virtual content network manager and virtual content network.

5, infrastructure manager

Infrastructure manager is mainly responsible for the resource of management infrastructure, including Internet resources, computing resource, caching money Source etc.；Meanwhile virtual content network organizing configuration information and content net based on the output of virtual content network organizing composer The content network virtualization combined information of network virtualization of function function composer output, which is arrived In physical infrastructure.

Figure 13 gives the composition for each functional module for including in infrastructure manager.Basis is provided individually below to set Apply the major function for each functional module that manager includes:

(1) information exchange module: the module is mainly responsible for and content service composer, virtual content network manager, void Quasi- content network networking composer, content network virtualization of function function composer, content network optimization collaborative controller and Control information exchange between infrastructure resources.

(2) virtual content network to infrastructure mapping and adaptively adjust module: the module is compiled according to content service Arrange device, virtual content network organizing composer, content network virtualization of function function composer, virtual content network manager Layout and optimum results generate physics content network, the mapping in the resource of virtual content network mapping to infrastructure Journey includes but is not limited to the functional unit configuration and its mapping between physical network nodes, virtual content of virtual content agency The reflecting between the communication link into physical network of the mapping, virtual link between content caching in caching and physical network It penetrates, the mapping of content caching of the virtual content entry into physical network etc.；Receive the virtual interior of virtual content network manager The optimal control result information of content network optimum results distribution module completes the corresponding physics of virtual content network based on the information The adaptive adjustment of content network.

(3) infrastructure management module: the module is mainly responsible for management infrastructure money relevant to virtual content network Source, including but not limited to network, caching and computing resource；This module includes infrastructure resources monitoring submodule, infrastructure Resource uses optimization submodule using assessment submodule, infrastructure resources；The submodule group that infrastructure management module includes Prejudice Figure 14, wherein

(a) infrastructure resources monitor submodule: the module is raw for collecting and monitoring all virtual content network mappings At physical content network resource state information, and send this information to infrastructure resources using assessment submodule and/ Or content network optimizes collaborative controller.

(b) infrastructure resources use assessment submodule: provide for infrastructure resources monitoring submodule and physics The relevant resource state information of content network is analyzed, the Service Quality based on content service slice and/or virtual content network Figureofmerit provides the performance based on content service slice and its affiliated corresponding physical content network of each virtual content network Assessment result；It is assessed for performance evaluation result, judges specific content business slice and its affiliated each virtual content Whether the corresponding physical content network of network needs to optimize, if you do not need to optimization, then notify infrastructure resources to monitor submodule Block continues to monitor the corresponding resource state information of physical content network；If necessary to optimize, then send performance evaluation result to Infrastructure resources complete corresponding optimization process using optimization submodule using optimization submodule, by infrastructure resources, or Person receives and based on the Optimal Decision-making from content network optimization collaborative controller as a result, performance evaluation result is sent to correspondence Manager/composer, for its optimization when use；Content network optimization collaborative controller decision may participate in the management of optimization Device/composer includes that the infrastructure resources of infrastructure resources manager use optimization submodule, virtual content network management Device, virtual content network organizing composer, content network virtualization of function function composer and content service composer.

(c) infrastructure resources use optimization submodule: using the needle of assessment submodule output based on infrastructure resources To specific content business slice, the corresponding performance indicator of the corresponding physical content network of virtual content network and current physics The infrastructure resources use state information and service status information of content network, optimize for physical content network, give Out optimal control as a result, and send infrastructure resources relevant to this suboptimization for the optimal control result, with this suboptimum Change relevant infrastructure resources and executes the corresponding control operation of this optimum results.

(4) user access administration module: module content service provider according to belonging to user content service request, control are used Family is linked into specific virtual content network.

6, virtual content network

The main functional modules that virtual content network includes have virtual content network controller, virtual content act on behalf of, is virtual Content caching, virtual content entry.Figure 15 gives a kind of composition of virtual content network.Virtual content net is provided individually below The major function and its function sub-modules for each functional module that network includes form.

(1) virtual content network controller

Virtual content network controller is mainly responsible for each virtual content in management this control virtual content network and acts on behalf of it Between virtual link, virtual content agency virtual content caching between control planning, virtual content agency with its belonging to Corresponding relationship between virtual content entry.

Figure 16 gives the composition for each functional module for including in virtual content network controller.Void is provided individually below The major function for the modules for including in quasi- content network controller:

(a) information exchange module: the information that the module is mainly responsible between virtual content agency, virtual content caching is handed over Mutually, the control information relevant to control planning including but not limited between virtual content agency, virtual content agency with it is virtual Control information relevant to control planning between content caching；In addition, this module is also responsible for this virtual network and other are virtual Virtual content network controller, this virtual content network and virtual content network manager, this virtual content net of content network Information exchange between network and infrastructure manager.

(b) virtual content network monitoring module: the module, which is received, is directed to this virtual content from infrastructure manager Internet usage assessment result, the resource of minute book virtual content network uses, the service state of content service function chain, base In the content service slice that the life cycle of this virtual content network, the corresponding service provider of this virtual content network provide Corresponding resource using status and service status information are sent to virtual content network evaluation module by content service configuration information And/or content network optimizes collaborative controller.

(c) virtual content network evaluation module: this virtual content network of virtual content network monitoring module output is received Resource using status and service status information, be based on the resource using status information and service status information, it is virtual to assess this The performance of the corresponding physical content network of content network, by the assessment result be sent to virtual content network optimization module and/or Content network optimizes collaborative controller.

(d) virtual content network optimization module: acting on behalf of comprising virtual content agentbased control module, virtual content and virtual interior Hold buffer control module, virtual content entry control module and virtual content network optimization cooperative module.

(d-1) virtual content agentbased control module: the optimization association from virtual content network optimization collaborative controller is received With as a result, configuring control/collaboration/incidence relation between the functional unit of virtual content agency, virtual content agency, specific void The activation and deactivation of quasi- content agent.

(d-2) virtual content agency is with virtual content buffer control module: receiving and cooperates with from the virtual content network optimization The optimization synergistic results of controller, the control planning between configuration and update virtual content agency and virtual content caching, including But be not limited to the read-write relationship change between virtual content agency and virtual content caching, virtual content buffer memory capacity, it is virtual in Hold the control planning between the virtual content agency recorded in the content service request forwarding table in agency and virtual content caching.

(d-3) virtual content entry control module: the optimization association from virtual content network optimization collaborative controller is received With as a result, configuration and update this virtual content network and its virtual content controlled agency belonging to virtual content caching in deposit The virtual content entry of storage.

(d-4) virtual content network optimization cooperative module: this module comes from virtual content network evaluation module for receiving The corresponding physical content network of this virtual content network performance evaluation result, based on the performance evaluation result and this it is virtual in The corresponding performance indicator of content network, starts optimization policing rule, control virtual content entry control module, virtual content agency with Virtual content buffer control module, virtual content agentbased control module complete based on the control of virtual content entry and/or it is virtual in Hold and act on behalf of combined optimization relevant to virtual content buffer control and/or virtual content agentbased control, judges that the optimum results are It is no to meet the corresponding performance indicator of this virtual content network, if meeting corresponding performance indicator, which is passed through Information exchange module is sent to relevant to this suboptimization virtual content caching, virtual content agency, while by optimal control knot The corresponding change in resources information of fruit notifies virtual content network manager by virtual content network controller；If can not meet Current performance evaluation result is then sent to virtual content network by virtual content network controller by corresponding performance indicator Manager, so that virtual content network manager completes the optimization for being directed to the virtual content network.In addition, the reception of this module comes from The optimization control for this virtual content network of the virtual content network optimization result distribution module of virtual content network manager Result information processed, is based on the result information, and control virtual content agentbased control module, virtual content agency cache with virtual content Control module, virtual content entry control module complete corresponding virtual content network optimization control operation.

(2) virtual content is acted on behalf of

Virtual content agency mainly includes information exchange mould as the virtual content proxy server in virtual content network Block, content service request processing module and content publisher's service module.Wherein, content service request processing module mainly includes Content service request receiving submodule, content service request analyzing sub-module, virtual content cache lookup submodule, content service Request-to-send submodule, content service request table undetermined, virtual content caching send optimal control submodule, content service request Forwarding table and content service information extraction submodule；Content publisher's service module includes the processing of publisher's content service request Submodule, publisher upload content storage mapping submodule, publisher's virtual content cache sub-module.

Figure 17 gives the composition for each functional module for including in virtual content agency, provides virtual content individually below Act on behalf of the major function for each functional module for being included:

(a) information exchange module: the module is mainly responsible for and virtual content network controller, virtual content agency and use Information exchange between family, the content service request relevant information including but not limited to interacted between user and sheet are virtual interior Hold the control information relevant to virtual content network of interaction and and user between virtual content network controller belonging to agency The relevant information of content service, the virtual protocol interacted between other virtual contents agency in this virtual content network control Relevant information etc..

(b) content service request processing module: the module is responsible for handling the content service request of user, mainly includes following 8 submodules:

(b-1) content service request receiving submodule: the module is responsible for receiving the content service request of user, and by content Service request is placed in content service request table undetermined and is lined up；Reception is asked from the content service that other virtual contents are acted on behalf of Response is asked, and sends content service request table undetermined for service request response result.

(b-2) content service request analyzing sub-module: the module is responsible for extracting content from content service request table undetermined Service request information, and the parsing result of the content service request is provided, this parsing result is sent to virtual content caching and is looked into Look for submodule.

(b-3) virtual content cache lookup submodule: the module reception content service request analyzing sub-module is sent interior Hold service request parsing result information, and be based on the parsing result information, searches the virtual content of this virtual content agentbased control Content item in caching；When the content item of request can not be found in virtual content caches, by the content service request It is sent to content service request table undetermined；If finding corresponding content item, based on the content in virtual content caching Entry information, by the virtual content entry information and its corresponding physical content location information cache, i.e. query result information is sent out It is sent to virtual content caching and sends optimal control submodule.

(b-4) content service request table undetermined: this submodule is responsible for recording all the elements that virtual content agency receives Service request and all the elements service request response, still untreated content service request/service including having been received are asked It asks response and handles the content service request/service request response being still unable to satisfy by virtual content cache lookup submodule.

(b-5) content service request sending submodule: the module is based on this void provided in content service request forwarding table Control planning between quasi- content agent and next stage virtual content agency, cooperateing with, closing between virtual content agency at the same level Connection relationship is responsible for for the content service request itself being unable to satisfy recorded in content service request table undetermined being sent to other void Quasi- content agent.

(b-6) content service request forwarding table: it is responsible for based between this virtual content agency and other virtual contents agency Control, collaboration, incidence relation, storage and this virtual content of layout agency are when can not find virtual content entry for forwarding The mark of other virtual content proxy informations, the including but not limited to virtual content agency and its this virtual content agency reach should The path optimizing of virtual content agency.

(b-7) virtual content caching sends optimal control submodule: the module is responsible for according to content service request table undetermined In with query result content service request response and the query result information from virtual content cache lookup submodule, control Content-data is sent to user by virtual content caching processed.Specifically, virtual content caching sends optimal control submodule and is based on The physical content cache location that can obtain the content information with query result information instruction is based on optimisation strategy, provides User obtains the optimization acquisition modes of the content, and the optimization acquisition modes information of the content is sent to user, which includes But being not limited to the virtual content purpose mark, the physical content cache location corresponding to the virtual content entry and arrival should The optimal path of physical content caching.

(b-8) content service information extraction submodule: the module is responsible for recording all users of virtual content agency service Information, including but not limited to user location, content requests preference, user upload content information feature；Extract validated user Status information is sent to content service composer, and the optimization layout of content service is completed for content service composer.

(c) content publisher's service module: the module is responsible for handling the request of publisher's content uploading, mainly includes following 3 A submodule:

(c-1) publisher's content service request handles submodule: the module is responsible for the content uploading of reception content publisher Request, copyright protection, the characteristic of division information that resource status and the upload content based on Current Content caching require, inquiry hair Cloth person uploads content storage mapping submodule, and it is slow to send the physical network content that the upload content data should be stored to publisher Deposit address；The content uploading confirmation message from publisher's virtual content cache sub-module is received, and sends that information to hair Cloth person uploads content storage mapping submodule；The content migration of reception content publisher is requested, and is sent the request to virtual Content network controller receives the processing result that virtual content network controller is directed to content migration request, this result is sent out It is sent to publisher's virtual content cache sub-module；The content migration confirmation from publisher's virtual content cache sub-module is received to disappear Breath, and send that information to publisher and upload content storage mapping submodule.

(c-2) publisher uploads content storage mapping submodule: based on spies such as content copyright protection limitation, classifying contents Sign, provide this virtual content agency belonging to the virtual content for content publisher's store content information cache it is corresponding Mapping relations between physical network content caching.Specifically, based on from publisher's content service request processing submodule Content uploading content service request provides the mapping relations uploaded between virtual content entry and physical content caching；Based on next From the content uploading content check message of publisher's content service request processing submodule, virtual content entry and Physical Network are stored Mapping relations between network content caching；Disappeared based on the content migration confirmation from publisher's content service request processing submodule Breath updates the mapping relations between the corresponding physical content caching of the content virtual entry.

(c-3) publisher's virtual content cache sub-module: receiving the content uploading confirmation message cached from physical content, The virtual content entry that content publisher uploads is recorded, and confirmation message will be uploaded and be sent to the processing of publisher's content service request Submodule；The content migration request from publisher's content service request receiving submodule is received, which is requested to send out Virtual content network controller belonging to virtual content agency is given, virtual content network controller is received and is directed to the content migration The processing result of request, the controlled virtual content entry information for completing to be stored in the content publisher in virtual content caching move The relevant operation in publisher's virtual content cache sub-module belonging to the virtual content to be replaced agency is moved on to, the content is updated The corresponding virtual content entry of migration request.

(3) virtual content caches

Virtual content caching is mainly used to cached virtual content, provides the content caching for each virtual content entry Limitation when insertion and removal mechanism, content copyright limitation mark and content optimization are placed.

Figure 18 gives the composition of each functional module in virtual content caching.The main of modules is provided individually below Function:

(a) information exchange module: the module is mainly responsible for and virtual content agency, virtual content network controller and use Information exchange between family, the virtual content optimum results including but not limited to interacted between the user of request content service point Hair controls information, information relevant with content uploading/migration interactive between content publisher, between virtual content agency Related information between interactive virtual content agency and its affiliated virtual content caching, the relevant control with content information lookup Information, the information relevant with virtual content Web content cached configuration of interaction between virtual content network controller.

(b) it the buffer control strategy module of virtual content caching: receives from virtual content agency or virtual content net The control information of network controller controls the virtual content in virtual content cache list, completes corresponding content caching strategy, i.e., Virtual content insertion and virtual content remove mechanism.

(c) virtual content cache list: the control from virtual content agency or virtual content network controller is received Information stores and updates the virtual content entry of this virtual protocol control, and each virtual content entry includes but is not limited to the void The title of quasi- content, mark, life span, affiliated content supplier/individual publisher, copyright protection limitation, content optimization Restricted information when placement.

(d) virtual content caches mapping block: receiving from virtual content agency or virtual content network controller Information is controlled, for storing the content caching in the virtual content entry information and physical network that include in virtual content caching Mapping relations between the content of middle storage.

(e) virtual content distribution module: receiving the control information acted on behalf of from virtual content, based on virtual content agency's Virtual content caching sends the content that optimal control submodule provides and obtains optimal way information, generates content distribution information, and This information is distributed to the user of request content service, which includes but is not limited to content bar purpose mark, entry correspondence Physical content caching position and reach the physical content caching path optimizing.

7. content network optimizes collaborative controller

Content network optimization collaborative controller is responsible for completing the collaboration optimization of the content network based on virtual content network struction. The functional module that content network optimization collaborative controller includes mainly has information exchange module, content network status information to receive mould Block, content network state estimation module, content network optimization Collaborative Control module, content network optimization Collaborative Control result distribution Module, content network optimize collaborative control pattern selecting module.The functional module group prejudice of content network optimization collaborative controller The major function of each functional module is given below in Figure 18 a:

(1) information exchange module: this module is completed and content service composer, content network virtualization of function function layout Device, virtual content network organizing composer, virtual content network manager, the control information between infrastructure manager are handed over Mutually, the information interacted includes but is not limited to that information relevant to content service layout Collaborative Control and content network function are empty Quasi-ization function layout controls relevant information, information relevant to virtual content network organizing layout control and virtual content net The relevant information of the relevant information of network manager Collaborative Control, the Collaborative Control carried out between infrastructure controller.

(2) content network status information receiving module: this module, which receives, comes from content service composer, content network function Virtualization composer, virtual content network organizing composer, virtual content network manager, infrastructure manager with Content service slice, virtual content network, the relevant status information of physical content network and/or assessment result information, and should Information is sent to content network state estimation module.

(3) content network state estimation module: receive status information from content network status information receiving module and/ Or assessment result information, and the information is assessed, content network condition evaluation results are based on, decide whether to need to optimize, If you do not need to optimization, then continue the response message for monitoring content network state by information exchange module feedback；If necessary Targets manager/the composer for completing this suboptimization is then adjudicated in optimization, and targets manager/composer includes content service layout Device, content network virtualization of function function composer, virtual content network organizing composer, virtual content network manager, base Infrastructure manager, and corresponding content network status information is sent to the targets manager/composer or content network Optimize Collaborative Control module.

(4) content network optimizes Collaborative Control module: receiving the court verdict letter from content network state estimation module Breath and corresponding content network status information complete the content network based on the network state information and cooperate with optimization, obtain base In content service, virtual content network organizing, content network virtualization of function function, virtual content network and physical content network The combined optimization control result of resource constraint, and output this result to content network optimization Collaborative Control result distribution module.

(5) content network optimizes Collaborative Control result distribution module: receiving and optimizes Collaborative Control module from content network Combined optimization control result information, and the information is output to corresponding to this suboptimization demand by information exchange module Manager/composer.

(6) content network optimizes collaborative control pattern selecting module: the collaboration Optimizing Mode of content network controller includes Centralization collaboration Optimizing Mode, semi collaboration Optimizing Mode and full distributed collaboration Optimizing Mode.Wherein, centralization collaboration Control model refers to that content network optimization collaborative controller is based on received content network condition evaluation results, based in itself Content network optimizes the combined optimization mode that Collaborative Control module is completed；Semi collaboration Optimizing Mode refers to that content network optimizes Collaborative controller is based on received content network condition evaluation results, and the targets manager/composer of this suboptimization is completed in judgement, And the Optimizing Mode of this suboptimization is completed by one or more targets manager/composer collaboration；Full distributed collaboration optimization Mode refers to content service composer, content network virtualization of function function composer, virtual content network organizing composer, void Quasi- content network manager, infrastructure manager etc. only need to report content network status information and its optimum results, by each From evaluation module completion status assessment, judgement and respectively by above-mentioned manager/composer itself complete Optimizing Mode.This Module is based on content network and cooperates with optimal mode selection configuration information, selects one of above-mentioned three kinds of Optimizing Modes.Figure 18 b gives The submodule composition of the module is gone out.Figure 18 c gives the flow chart of content network optimization collaborative control pattern selection.

Above-mentioned is the specific implementation of each functional entity in network generation system.It wherein, can using above-mentioned functional entity To generate content network, and it can be managed accordingly, such as assessment, optimization, update, deletion etc..Above-mentioned each pipe Managing the optimization function of device and composer, the object of optimization and optimizing index can be with reference table 1.In addition, Figure 19 gives we The optimization level for each functional module that case is related to.

Table 1

The detailed process of virtual content network generation method is given below.Figure 20 gives a kind of virtual content network generation The process of method, as shown in figure 20, this method comprises:

Step 2001, content service provider carries out content service note in the content service registration module of content service orchestration device The content service of content service provider is converted into technical description language by volume, the content service describing module of content service composer；

Step 2002, the content service information collection module of content service composer collects content service information and resource Status information, including but not limited to service provider's information, user information, resource state information etc., and the information of collection is sent to Content service orchestration module；

Step 2003, the content service orchestration module of content service composer is based on content service information and resource status is believed Breath is based on specific business chip property index, is sliced for the corresponding content service of content service layout of content service provider, The layout result that content service is sliced is output to content service logging modle and content service configuration module；

Step 2004, the layout knot of the content service logging modle record content service orchestration module of content service composer Fruit, content service configuration module is according to layout as a result, to virtual content network organizing composer and content network virtualization of function Function composer sends content service configuration information；

Step 2005, the virtual content network organizing orchestration module of virtual content network organizing composer is according to receiving Content service configuration information, the void that the corresponding virtual content network of layout, including but not limited to layout virtual content network include Quasi- content network controller, the virtual link of virtual content network controller control, selection virtual content agency, virtual content are slow The binding for depositing, being arranged the strategy and virtual content caching and virtual content agency of virtual content caching, generates virtual content net Network mesh information；

Step 2006, the virtual content Web content placement module of virtual content network organizing composer is according to the group of layout Net information carries out virtual content placement, and virtual content network information logging modle records the layout letter of virtual content network organizing Breath, is sent to content network virtualization of function function composer for virtual content network organizing arrangement information；

Step 2007, the content network virtualization of function function of content network virtualization of function function composer divides module Based on specific function segmentation strategy, the content service functional unit of content network, including but not limited to content name, content are obtained Mark, content identification are cooperateed with network path mapping, content service request processing, content search, content service processing, content is excellent Change place and path optimization, content caching management, control plane content service data relaying, data plane content service number According to functional units such as relayings；

Step 2008, the content network virtualization of function function orchestration module of content network virtualization of function function composer Based on the content network function segmentation result of content network virtualization of function function segmentation module, content network virtualization of function is completed The function layout of change；

Step 2009, the virtual content network function generation module of content network virtualization of function function composer is in Content network virtualization of function function divides the functional unit result of module output, content network virtualization of function function orchestration module The content network virtualization of function function layout of output as a result, and virtual content network organizing composer virtual content network Mesh information generates the content service function of control plane and user plane based on content network virtual network function component Chain, sends the result information to the virtual content network controller of the virtual content network, and virtual content network controller will The information is sent to virtual content network manager, infrastructure manager and virtual content network function information record mould Block, virtual content network function information logging modle record the function combination result information of the virtual content network；

Step 2010, virtual content network controller is according to layout result, the content of virtual content network organizing composer The layout of network function virtualization composer is as a result, configure in the virtual content network optimization module of the virtual content network Correlation function, control virtual content this virtual content of agent update agency other virtual contents agency between control/association With/incidence relation, the update mechanism that virtual content acts on behalf of the control planning cached with virtual content, virtual content caches, update The virtual content entry being stored in virtual content caching；

Step 2011, the infrastructure configuration module of infrastructure manager is according to receiving for virtual content network Business function chain information configures the corresponding physical infrastructure resource of the virtual content network, including but not limited to virtual content Act on behalf of the mapping of server in physical network, virtual content is cached to the mapping of content caching in physical network, virtual chain Relationship configuration between the mapping of physical link of the road into physical network, the corresponding proxy server of virtual link etc.；

Step 2012, in the corresponding physics of the corresponding virtual content network of infrastructure manager output content service slice Content network slice, including but not limited to content agent, are stored in being directed in content caching at deployment content caching in a network Multiple copy of content of each content item, the update mechanism of content caching, control/collaboration/pass between virtual content agency Connection relationship.

It, can be using such as Figure 21 when needing to cancel content service slice and deleting the virtual content network of some generation Shown in method.Figure 21 gives a kind of virtual content net based on the content service slice cancellation request from content service provider Network delet method, as shown in figure 21, this method comprises:

Step 2101, content service composer receives the request for cancelling specific content business slice from content service provider, The request that content service slice will be cancelled is sent to virtual content network manager, virtual content network manager it is virtual in Hold monitoring modular and records content service slice cancellation request, the current content service association requests of monitoring virtual content network Service state；

Step 2102, when confirmation do not complete not yet content service request when, virtual content network manager it is virtual Virtual content network controller of the content network monitoring modular to all virtual content networks for corresponding to content service slice It sends and stops receiving user content service request information, all virtual content network controllers are to all virtual contents belonging to it Agency sends the message for stopping receiving user content service request, cancels to infrastructure manager transmission and corresponds to the contents industry The corresponding physical content network-based control message of all virtual content networks of business slice；

Step 2103, infrastructure manager corresponds to the resource distribution letter of the physical content network of content service slice Breath discharges all the elements network function component relevant to the physical content network, virtual content is acted on behalf of, virtual content caching reflects The physical content network-related resources of physical facility are mapped to, and is sent to virtual content manager and corresponds to what content service was sliced The deletion confirmation message of all virtual content networks；

Step 2104, virtual content network manager receives the virtual content network from infrastructure manager and deletes really Recognize message, is sent to content network virtualization of function function composer and virtual content network organizing composer and correspond to the content The deletion confirmation message of all virtual content networks of business slice controls the virtual content network monitoring module belonging to it and deletes The relevant virtual content network information；

Step 2105, the virtual content network function information logging modle of content network virtualization of function function composer is deleted Except function arrangement information relevant to corresponding virtual content network, in the virtual content network of virtual content network organizing composer Hold placement module and delete virtual content entry relevant to corresponding virtual content caching, virtual content network information logging modle is deleted Except networking arrangement information relevant to corresponding virtual content network, content network virtualization of function function composer and virtual content Network organizing composer deletes confirmation message to the network that virtual content network manager sends corresponding virtual content respectively；

Step 2106, virtual content network manager sends content service slice deletion confirmation message and gives content service layout The content service logging modle of device, content service composer deletes content service slice information relevant to content service slice And its content service arrangement information, service register module delete the service registration information for corresponding to content service slice.

So far, the virtual content network based on content service provider's content service slice cancellation request, which deletes process, to be terminated.

It is adaptive for the centralization of single virtual content network that Figure 22 gives a kind of content network optimization collaborative controller The process of method should be optimized and revised.As shown in figure 22, this method comprises:

Step 2201, content network optimization collaborative controller executes the corresponding physical content network performance of virtual content network Monitoring and Optimization Progress；

Step 2202, it is default to judge whether the performance monitoring output result of physical content network monitor and Optimization Progress meets Performance indicator, if so, return step 2201, otherwise continues to execute step 2203；

Step 2203, content network optimization collaborative controller executes monitoring and the Optimization Progress of virtual content network；

Step 2204, judge whether the output result of virtual content network monitor and Optimization Progress meets preset performance and refer to Mark, if so, otherwise return step 2201 executes step 2205；

Step 2205, content network optimization collaborative controller executes the monitoring of content service slice and Optimization Progress.

In the step 2201 of above-mentioned Figure 22, the corresponding physical content network monitor of virtual content network and Optimization Progress can Using process shown in Figure 23.As shown in figure 23, which includes:

Step 2301, infrastructure manager monitors and assesses the service of the corresponding physical content network of virtual content network Performance；

Step 2302, judge whether the service performance of the corresponding physical content network of virtual content network meets preset want Evaluation, if so, 2301 are thened follow the steps, it is no to then follow the steps 2303；

Step 2303, the infrastructure resources in the infrastructure management module of infrastructure manager use optimization submodule Performance indicator of the block based on physical content network optimizes the infrastructure resources of physical content network；

Step 2304, the optimum results for meeting performance indicator are judged whether there is, if so, thening follow the steps 2307, otherwise Execute step 2305；

Step 2305, the virtual content network of infrastructure manager to infrastructure mapping and adaptively adjust module Based on the performance indicator of physical content network, the mapping relations of optimization virtual content network to infrastructure；

Step 2306, the optimum results for meeting performance indicator are judged whether there is, if so, thening follow the steps 2307, otherwise Execute step 2308；

Step 2307, infrastructure manager adjusts the corresponding physical content network of virtual content network according to optimum results Infrastructure resources, and execute step 2309；

Step 2308, the clothes of the corresponding physical content network of the virtual content network are exported to virtual content network manager Business performance indicator, resource state information and optimization failure result.

Step 2309, the service performance index and optimization knot of the corresponding physical content network of output virtual content network Fruit, and return step 2301.

In the step 2203 of earlier figures 22, the monitoring of virtual content network and Optimization Progress can be using shown in Figure 24 Process.As shown in figure 24, which includes:

Step 2401, virtual content network manager exports specific virtual content net to virtual content network organizing composer The resource state information of network and its corresponding performance evaluation result information；

Step 2402, virtual content network organizing composer obtains the performance evaluation result information of the virtual content network, Including networking resources use state, service response delay, hit rate etc.；

Step 2403, judge whether the service performance of the virtual content network meets preset networking requirement threshold value, if so, 2406 are thened follow the steps, otherwise, executes step 2404；

Step 2404, virtual content network organizing composer re-optimization virtual content network organizing resource, including it is virtual Affiliated and control/collaboration/incidence relation, virtual content information placement of agency, content caching in content network；

Step 2405, the optimum results for meeting performance indicator are judged whether there is, if so, thening follow the steps 2406, otherwise Execute step 2412；

Step 2406, content network virtualization of function function composer obtains the business function chain in virtual content network Service state；

Step 2407, judge whether the service performance of the business function chain of the virtual content network meets preset requirement Value, if so, 2410 are executed, it is no to then follow the steps 2408；

Step 2408, content network virtualization of function function composer divides virtual content network function component again, and Optimize layout virtual content business function chain；

Step 2409, the optimum results for meeting performance indicator are judged whether there is, if so, thening follow the steps 2410, otherwise Execute step 2412；

Step 2410, the optimum results of the virtual content network are exported to infrastructure manager；

Step 2411, infrastructure manager starting is directed to the performance of the corresponding physical content network of the virtual content network Monitoring and optimization process.

Step 2412, the performance evaluation result information and optimization of the virtual content network are exported to content service orchestration device Failure result.

In the step 2205 of earlier figures 22, the monitoring of content service slice and Optimization Progress can be using shown in Figure 25 Process.As shown in figure 25, which includes:

Step 2501, content service composer, which receives specific content business and is sliced the performance of corresponding virtual content network, comments Estimate result；

Step 2502, whether the service performance of judgement content service slice meets preset service performance requirements, if so, Step 2506 is executed, otherwise, executes step 2503；

Step 2503, the content service slice of content service composer re-optimization programming content service provider, including content Business is sliced corresponding each virtual content network configuration, virtual content proxy number, content caching capacity etc.；

Step 2504, the content service configuration optimization being sliced to the output of virtual content network manager for the content service Information；

Step 2505, virtual content network manager updates the content service configuration optimization letter for content service slice Breath；

Step 2506, virtual content network manager starting virtual content network monitor and optimization process.

After virtual content network in the application generates, the content service request of user can be handled, for void The process flow of a user content service request is as shown in figure 26 in quasi- content network, specifically includes:

Step 2601, the user access administration module of infrastructure manager is based on the content service request of user, control User accesses the virtual content agency of specific virtual content network；

Step 2602, the content service request processing module of virtual content agency receives content service from the user and asks Ask, including content service request from the user, and from its with cooperate with/virtual content of control planning agency in Hold service request；

Step 2603, content service request information is recorded in content service request table undetermined by virtual content agency；

Step 2604, the content service request analyzing sub-module of virtual content agency is extracted in content service request table undetermined Content service request, parse the content service request of user, parsing result be sent to virtual content cache lookup submodule；

Step 2605, judging that the virtual content cache lookup submodule of virtual content agency is searched in virtual content caching is Otherwise the no virtual content entry being cached with corresponding to user content service request, executes step if so, thening follow the steps 2606 Rapid 2608；

Step 2606, the virtual content caching of virtual content agency sends optimal control submodule and extracts virtual content caching Virtual content caching mapping block in the content that stores in content caching in the virtual content entry that provides and physical network Between mapping relations, be based on optimisation strategy, provide the optimization acquisition modes that user obtains the content, control virtual content caching In virtual content distribution module the optimization acquisition modes information for obtaining the content, the including but not limited to content are returned to user Mark, corresponding physical content cache location and to the physical content cache optimal path；Update content service request Table and content service request forwarding table undetermined；

Step 2607, the content acquisition modes letter that user is provided based on the virtual content distribution module that virtual content caches Breath, obtains corresponding content-data.

Step 2608, the content service request sending submodule of virtual content agency is based in content service request forwarding table The content service request is sent to corresponding virtual content and acted on behalf of by the upper level virtual content proxy information of instruction；

Step 2609, the forwarding information of content service request is recorded in content service request forwarding table by virtual content agency In.

After virtual content network in the application generates, content, specific content hair can also be uploaded for content publisher Process flow when cloth person upload content is as shown in figure 27, specifically includes:

Step 2701, the content uploading service of the user access administration module reception content publisher of infrastructure manager Request；

Step 2702, the user access administration module of infrastructure manager is based on the received in the content of content publisher Service request is passed, control user accesses the virtual content agency of specific virtual content network；

Step 2703, publisher's content service request processing submodule reception content publisher of virtual content agency sends Content uploading service request, include but is not limited to content identification information, the contents attribute letter that request uploads in the service request Breath, content copyright protection restricted information and content life span；

Step 2704, publisher's content service request processing submodule inquiry publisher of virtual content agency uploads content Storage mapping submodule sends the content uploading response message for being directed to the content uploading request message to publisher, in the message The content caching address information in the physical content network that content needs to cache is uploaded including publisher；

Step 2705, the content that the content caching reception content publisher in physical content network uploads, and in reception After holding information, the publisher's virtual content cache sub-module acted on behalf of to virtual content sends content uploading confirmation message, empty Quasi- content caching submodule caches the virtual content entry；

Step 2706, publisher's content service request processing submodule is received from publisher's virtual content cache sub-module Content uploading confirmation message, control publisher upload content storage mapping submodule update the content virtual content entry letter Cease the mapping relations between mark, content attribute information, virtual content entry and physical content.

So far, the treatment process for uploading content for content publisher terminates.

Be given below it is a kind of in isomery Hierarchical Mobile Radio Access Network generate content network specific embodiment, i.e., one Kind acts on behalf of number and virtual content caching as the optimization aim of system, with virtual content using the weighting hop count minimum for obtaining content Meet content network optimization method (Min-WH:Minimum Weighted Hop based of the threshold value as optimization restrictive condition content-oriented network optimization).Figure 28 gives two layers honeycomb isomery mobile wireless and connects Enter the schematic diagram of a scenario of network.

It is raw that the process of the optimization process based on Min-WH method, the content network based on Min-WH method are introduced individually below At method and based on the content network self-adapting regulation method of Min-WH method.

Firstly, Min-WH method is to obtain the weighting hop count minimum of content as optimization aim, the number of content agent Meet optimization algorithm of the preset value as restrictive condition with content caching, content number, buffer update mechanism, which can To reside in infrastructure manager, in virtual content network organizing composer, complete corresponding for user content service request Content search and its content to acquisite approachs optimization.Wherein, Figure 29 is that the Min-WH executed in infrastructure manager is calculated The logic flow of method, Figure 30 are the process of the Min-WH algorithm in virtual content network organizing composer.

Secondly, introducing the content network generation method based on Min-WH algorithm.Figure 31 gives based on Min-WH algorithm The process of content network generation method.Content network generation method based on Min-WH is divided into six stages, and respectively content takes Business generation phase, virtual content network organizing layout stage, content network virtualization of function function layout stage, virtual content net Network business chain generation phase, virtual content network-control generation phase, the mapping of virtual content network to physical content network are raw At the stage.Each stage is introduced separately below.

Content service generation phase

In two layers of honeycomb isomery Hierarchical Mobile Radio Access Network, content service composer is according to content service provider Content service demand and SLA, programming content business slice in virtual content Internet resources, provide the content service slice in contain Virtual content in some virtual content network numbers and each virtual content network acts on behalf of number, virtual content caching holds Amount, virtual content entry number generate the content service configuration information for content service slice.

The virtual content network organizing layout stage

In the virtual content network organizing layout stage, virtual content network organizing composer is based on content service generation phase Virtual content in obtained virtual content network number and each virtual content network acts on behalf of number, virtual content caching Capacity, virtual content entry number, complete the networking editing operation of following virtual content network:

(1) the virtual content agency in virtual content network is divided into two layers, wherein first layer has higher than the second layer Visual angle；The number of virtual content network organizing composer layout first layer virtual content agency, second layer virtual content agency Number, the virtual content buffer memory capacity of first layer, the virtual content buffer memory capacity of the second layer, the virtual content entry of first layer The virtual content entry number of number and the second layer；

(2) the networking relationship layout between virtual content agency is completed, between the virtual content agency including first layer Control/collaboration/incidence relation, the second layer virtual content agency between control/collaboration/incidence relation, first layer virtually in Hold agency the second layer virtual content agency between control/cooperate with/incidence relation；

(3) the incidence relation layout between virtual content agency and virtual content caching is carried out, including the virtual of first layer The virtual content agency of read-write relationship, the second layer between content agent and its affiliated virtual content caching with its belonging to it is virtual interior Hold the read-write relationship between caching；

(4) placement of virtual content entry is carried out, the letter such as characteristic of division and copyright protection limitation based on virtual content entry It ceases, virtual content entry, second layer virtual content agency in virtual content caching belonging to layout first layer virtual content agency Virtual content entry in affiliated virtual content caching.

(5) the virtual content more new strategy of each virtual content caching of layout.

Result is placed comprising virtual content network organizing layout result and virtual content as a result, generating based on above-mentioned layout Virtual content network organizing configuration information.

The content network virtualization of function function layout stage

In the content virtual network virtualization layout stage, content network virtualization of function function composer is based on virtual The virtual content mesh information that content network networking stage generates carries out the layout of business function chain, including virtual content network The Content data traffic function chain for controlling plane traffic function chain and data plane is placed, and the layout of virtual content network function is generated As a result, output content network virtualization of function function layout result information.

Virtual content network service function chain generation phase

In virtual content network management generation phase, it is based on above content service creation, virtual content network organizing layout With content network virtualization of function function layout result information, virtual content network manager configures each virtual content network Virtual content network controller, including but not limited to its controller example generate, the input of controller example based on generation should Mesh information, content network virtual network function arrangement information and the content networking resource configuration parameter of virtual content network, packet Include but be not limited to the networking configuration information and business function chain of virtual content network；And each virtual content network and Life Cycle Phase relevant information.

Virtual content network-control generation phase

In virtual content network-control generation phase, virtual content network controller is based on networking layout, function layout, void Quasi- content networking resource information, in virtual content network internal, the control/collaboration/association configured between virtual content agency is closed Control planning, virtual content between system, virtual content agency and virtual content caching cache between virtual content entry The content item update mechanism of relationship, virtual content caching.

Mapping generation phase of the virtual content network to physical content network

In the mapping generation phase of virtual content network to physical content network, infrastructure manager is according to virtual content First layer virtual content is acted on behalf of and its virtual content caches and virtual content entry resource impact by the configuration result information of network To the macro base station layer in two layers of honeycomb isomery mobile radio access network, second layer virtual content is acted on behalf of and its virtual content It caches and virtual content entry resource impact to micro-base station layer；Based on Min-WH algorithm, it is based on macro base station content agent, micro-base station Current control/the collaboration of content agent/incidence relation limitation, content caching capacity, physical content number are limited and are configured interior Hold the limitation of buffer update mechanism, completes virtual content network and mapped to the optimization of physical content network, generated in corresponding physics Content network.

When all virtual content networks for specific content business slice are mapped as physical content network, being based on should The content network generating process of content service slice terminates.

The self-adapting regulation method of the virtual content network based on Min-WH is given below.Figure 32 gives a kind of content net Network optimizes collaborative controller and is directed to single virtual content network, the process of the adaptive optimization method of adjustment based on Min-WH.

The monitoring of the corresponding physical content network of virtual content network in the step 3201 of Figure 32 based on Min-WH and excellent Process as shown in figure 33 can be used by changing process；

Virtual content network monitor and Optimizing Flow in the step 3203 of Figure 32 based on Min-WH can be using such as Figure 34 Shown in process；

The monitoring of content service slice in the step 3205 of Figure 32 based on Min-WH and Optimizing Flow can be using as schemed Process shown in 35.

So far, the virtual content network embodiment in the embodiment of the present application based on Min-WH terminates.

As above, the application is intended to based on network function virtualization technology, in the physical facility network for supporting content caching, Generation, the management method, device and system for providing a kind of content network, mainly solve the problems, such as following four:

(1) in the physical facility network for supporting content caching, it is virtual to propose a kind of function progress by content service The method changed, generate virtual content network；

(2) one kind is proposed based on virtual content network, is generated in the physical infrastructure network of deployment content caching The method of content network；

(3) it proposes a kind of based on virtual content network, in content network, Internet resources, content caching resource, content The Optimization Scheduling of placement；

(4) it is generated, in management system in the content network based on virtual content network, the service of user's request content, content Publisher uploads process flow when content.

(5) it proposes a kind of be layered in Radio Access Network in isomery and is based on the weighting the smallest content network optimization side of hop count Method.

Above-mentioned the present processes and system can be applied in fixed network and/or cellular mobile radio access network, For generating content network；Meanwhile content service is provided based on virtual content network, it can be with by content network virtualization of functionization Improve the flexibility of content network networking；Further, content service is provided based on content network, can both merges the version of content Power protection limitation, it is further contemplated that the content copyright of content publisher requires, and optimizes the resource of content network on this basis, because This, can be improved the resource utilization of content network, reduce the operation cost (OpEx) for providing content information service and investment It pays (CapEx).

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.

Claims

1. the generation and management method of a kind of content network characterized by comprising

Content service information is collected, the content service of registration is generated multiple content services and be sliced, and generated by registration content service Each content service is sliced corresponding content service configuration information；

It is sliced for any content service, according to the content service information and content service configuration information of collection, configuration is described to appoint One content service is sliced corresponding virtual content network；

For each virtual content network, is formed according to the inside of the virtual content network and generate content service business function chain； According to the networking configuration information of virtual content network and the content service business function chain, by virtual content network mapping to object It manages in infrastructure；

Each virtual content network-caching virtual content information, and the virtual content information is recorded in virtual content caching and object Manage the mapping between content caching；The content service request for receiving user in virtual network, searches corresponding virtual content information The virtual content cache location at place, control virtual content divide after being buffered in the mapping relations between inquiry and physical content caching Send out content information；For the content uploading request of content publisher, the record content publisher publication in virtual content caching Content information is uploaded in the caching of the physical content belonging to it, is sent out for content by virtual content information, control content publisher The upload content migration of cloth person is requested, and the migration of content caching position is carried out.

2. the method according to claim 1, wherein the content service by registration generates multiple content services Slice includes:

According to the content service information, layout is carried out for the content service, by content service layout at support based on not Content service with angle is sliced；Wherein, the different angle includes: angle based on personal content publisher, based on content The angle of service provider and/or angle based on different SLA requirements.

3. the method according to claim 1, wherein the configuration any content service is sliced corresponding void Quasi- content network includes:

According to the content service information, content service configuration information and come from infrastructure information, layout virtual content net Network generates virtual content network organizing information；

According to the virtual content network organizing information, virtual content item is placed in the virtual content caching of virtual content network Mesh, and provide the attribute of each virtual content information；

Result and the virtual content network organizing information are placed according to virtual content, virtual content network organizing is generated and matches confidence Breath, and corresponding virtual content net is sliced according to virtual content network organizing configuration information configuration any content service Network；

Wherein, the virtual content network organizing information include: virtual content proxy information, it is virtual content cache information, virtual Strategy setting and/or the virtual content caching of content caching and the binding of virtual content agency, the attribute include: that content provides Quotient's information, personal distributor information, content service provider's information, content copyright protection limitation and/or the optimization of virtual content entry are put Restricted information is set, virtual content network organizing configuration information includes: virtual content network agent relevant information, virtual content network The information of collaboration and/or control planning between agency, virtual content agency and virtual content caching related information, it is virtual in Hold the virtual content entry cached in the strategy and/or virtual content caching of caching and its attribute information.

4. the method according to claim 1, wherein described formed according to the inside of the virtual content network generates Content service business function chain includes: to carry out function segmentation to the virtual content network, is partitioned into different virtual contents Network function component；According to segmentation result, function layout is carried out to the virtual content network, according to function layout result and institute The networking configuration information of virtual content network is stated, the virtual content service business function chain of control plane and data plane is generated；

Wherein, virtual content network function component includes: that content name, content identification, content identification and network path map, are interior Hold service request handling, content search, content service processing collaboration, content optimization place and path optimization, content caching management, Control the content service data relaying of plane, the content service data relaying of data plane.

5. the method according to claim 1, wherein described by virtual content network mapping to physical infrastructure In include: according to content service layout result, virtual content network organizing layout result, virtual content network function layout knot Fruit, the layout of virtual content network and optimum results, will be in the virtual content network mapping to the resource of infrastructure.

6. the method according to claim 1, wherein this method further comprises: monitoring virtual content network State manages virtual content Network morals, manages the content service business function chain in virtual content network, carries out empty Distribution, optimization, update and the deletion of the virtual resource of quasi- content network.

7. the method according to claim 1, wherein this method further comprises: being directed to any virtual content net The corresponding physical content network of network current resource state information and service status information are based on optimisation strategy and rule, complete For content service slice optimization, the virtual content network optimization, virtual content network service function chain, physical content network it is excellent Change decision, and forms optimization Coordination Decision result.

8. the method according to the description of claim 7 is characterized in that the optimisation strategy and rule are as follows: when physical content network When being unable to satisfy specified content network performance indicator, according to physical content network level, virtual content network level, contents industry The optimization order of business slice level successively optimizes.

9. according to method described in claim 2,7 or 8, which is characterized in that this method further comprises: cutting for content service The corresponding physical content network of piece carries out performance monitoring；Based on particular characteristic index, content service slice is assessed, and right Assessment result makes decisions, or the assessment decisions result of the content network optimization collaborative controller is sentenced based on the received Certainly；If content service slice needs to optimize, optimized for content service slice, alternatively, described based on the received Combined optimization control result information or optimization processing notification information optimize；If you do not need to optimization, then continue to monitor this interior Appearance business slice.

10. according to method described in claim 3,7 or 8, which is characterized in that this method further comprises: being directed to virtual content The corresponding physical content network of network carries out performance monitoring；Based on particular characteristic index, according to performance monitoring results to virtual interior The networking performance of content network is assessed, and is made decisions for performance evaluation result, or is based on the received content net The assessment decisions result that network optimizes collaborative controller carries out the judgement of virtual content network organizing；When needing to carry out virtual content network When networking layout optimizes, the networking layout optimization of virtual content network is carried out, alternatively, the combined optimization control based on the received Result information or optimization processing notification information optimize；When not needing to carry out virtual content network organizing layout optimization, after It is continuous that the corresponding physical content network of virtual content network is monitored.

11. according to method described in claim 4,7 or 8, which is characterized in that this method further comprises: to each virtual interior Content network carries out performance monitoring, is based on particular characteristic index, currently combines phase with function and/or function for virtual content network The performance of pass is assessed, and assessment result is provided；According to the assessment result or the received content network optimization collaboration The assessment decisions result of controller judges whether virtual content network function needs to optimize；If necessary to optimize, then starting is corresponding Function optimization layout process, alternatively, the combined optimization control result information or optimization processing notification information based on the received It optimizes；If you do not need to optimization, then continue the performance for monitoring the virtual content network.

12. according to method described in claim 5,7 or 8, which is characterized in that this method further comprises: receiving described virtual The optimization Coordination Decision of content network is as a result, complete the corresponding physical content network of virtual content network based on the information Adaptive adjustment；

The resource state information for collecting and monitoring the physical content network that all virtual content network mappings generate, according to the money Source status information, based on content service slice and/or virtual content network Service Quality Metrics, to content service slice and its The corresponding physical content network of affiliated each virtual content network carries out Performance Evaluation；Judged according to performance evaluation result specific Whether content service slice and its affiliated corresponding physical content network of each virtual content network need to optimize, or according to The assessment decisions result of the received content network optimization collaborative controller determines the need for optimizing；If you do not need to Optimization then continues to monitor the corresponding resource state information of physical content network；If necessary to optimize, then according to the Performance Evaluation As a result to physical content network, virtual content network, virtual content network function, virtual content network networking layout and/or Content service slice optimizes, alternatively, the combined optimization control result information or optimization processing notice letter based on the received Breath optimizes.

13. the method according to claim 1, wherein the virtual content network generated includes: virtual content network Controller, virtual content agency, virtual content caching, virtual link and virtual content entry；

This method further comprises: the management that virtual content network controller acts on behalf of virtual content in management virtual content network Relationship, joint, collaboration and/or control planning, virtual content agency between each virtual content agency are cached with virtual content Between control planning, virtual content agency the virtual content entry belonging to it between corresponding relationship and virtual content Mapping relations between caching and virtual content entry.

14. according to the method for claim 13, which is characterized in that this method further comprises: receiving and be directed to virtual content Resource using information, network state information and the service content solicited message of the corresponding physical content network of Internet resources, base Between the content service slice of the life cycle of the virtual content network, the virtual content network and service provider Content service configuration information, the networking of the virtual content network and function layout status information and service status information, really The network state information of the fixed virtual content network, and according to the network state information assess the virtual content network and The performance of its corresponding physical content network, according to assessment result performance indicator corresponding with this virtual content network, starting Optimisation strategy rule, carry out based on virtual content entry control and/or virtual content agency with virtual content buffer control and/or The relevant combined optimization of virtual content agentbased control, judges whether the optimum results meet the corresponding performance of this virtual content network Index, if meeting corresponding performance indicator, by the optimum results be sent to relevant to this suboptimization virtual content caching, Virtual content agency, and the corresponding change in resources information of optimal control result is notified into virtual content network manager；If nothing Method meets corresponding performance indicator, then the performance evaluation result is sent to virtual content network manager, in virtual Content network manager completes the optimization for being directed to the virtual content network.

15. according to the method for claim 13, which is characterized in that the content clothes for receiving user in virtual content network Business request includes requesting for the search request of content with the content uploading based on content publisher, and come from content publisher Content migration request.

16. according to the method for claim 13, which is characterized in that the void searched where corresponding virtual content information Quasi- content caching position includes: that each virtual content agency extracts content service request from content service request table undetermined Information is parsed, and searches the content item in the virtual content caching of this virtual content agentbased control according to parsing result；Such as Fruit finds corresponding content item, then records virtual content entry information and corresponding physical content location information cache；Such as Fruit can not find out corresponding content item, then according to the relationship between different virtual contents agency, by corresponding content service request It is sent to other virtual contents agency.

17. the method according to claim 1, wherein this method further comprises: receiving and cancel specified contents industry It is engaged in after the request of slice, for virtual content network corresponding with the content service slice of request cancellation, monitors the virtual content The service state of the current content service request of network；When confirmation do not complete not yet content service request when, for this Content service is sliced corresponding virtual content network and its corresponding physical content network, discharges and corresponding virtual content network And its corresponding relevant all the elements network function component of physical content network and its relevant resource, delete relevant physics Content network and its corresponding virtual content network, and delete corresponding contents business slice information and its corresponding content service volume Arrange information and service registration information.

18. the generation and management system of a kind of content network characterized by comprising content service composer, virtual content net Network networking composer, content network virtualization of function function composer, virtual content network manager, infrastructure manager, Virtual content network controller, virtual content agency, virtual content caching；

The content service composer, for collecting content service information, registration content service generates the content service of registration Multiple content service slices, and generate each content service and be sliced corresponding content service configuration information；

The virtual content network organizing composer, for the content service information and content service configuration information according to collection, It configures any content service and is sliced corresponding virtual content network；

The content network virtualization of function function composer, for the functional unit based on virtual content network, and it is each The inside of virtual content network forms, the function of layout virtual content network, and generates content service business function chain；

The infrastructure manager, for the networking configuration information and the content service business function according to virtual content network Energy chain, by multiple virtual content network mappings into physical infrastructure；

The virtual cache, be used for cached virtual content information, and record the virtual content information virtual content caching with Mapping between physical content caching；

The virtual content agency, for receiving content service request from the user, searches corresponding virtual content information institute Virtual content cache location, control virtual content be buffered in inquiry and physical content caching between mapping relations after distribute Content information；For the content uploading request of content publisher, the void of record content publisher publication in virtual content caching Content information is uploaded in the physical content caching belonging to it, is issued for content by quasi- content information, control content publisher The upload content migration of person is requested, and the cache location migration of content is carried out.

19. system according to claim 18, which is characterized in that the content service composer is further used for basis The content service information carries out layout for the content service, by content service layout at the content based on different angle Business slice；Wherein, the different angle includes: the angle based on personal content publisher, the angle based on content service provider And/or the angle based on different SLA requirements.

20. system according to claim 17, which is characterized in that the virtual content network organizing composer, further For according to the content service information, content service configuration information and from the status information of infrastructure, layout to be virtual Content network generates virtual content network organizing information；According to the virtual content network organizing information, in virtual content network Virtual content caching in place virtual content entry, and provide the attribute of each virtual content information；It is put according to virtual content Result and the virtual content network organizing information are set, generates virtual content network organizing configuration information, and according to described virtual Content network networking configuration information configuration any content service is sliced corresponding virtual content network；

Wherein, the virtual content network organizing information include: virtual content proxy information, it is virtual content cache information, virtual Strategy setting and/or the virtual content caching of content caching and the binding of virtual content agency, the attribute include: that content provides Quotient's information, personal distributor information, content service provider's information, content copyright protection limitation and/or the optimization of virtual content entry are put Restricted information is set, virtual content network organizing configuration information includes: virtual content network agent relevant information, virtual content network Virtual link information, virtual content agency and the related information of virtual content caching, the plan of virtual content caching between agency The virtual content entry and its attribute information slightly and/or in virtual content caching cached.

21. system according to claim 18, which is characterized in that the content network virtualization of function function composer, It is further used for carrying out function segmentation to the virtual content network, is partitioned into different virtual content network function components； According to segmentation result, function layout is carried out to the virtual content network, according to function layout result and the virtual content net The networking configuration information of network generates the virtual content service business function chain of control plane and data plane；

Wherein, virtual content network function component includes: content name, content identification, content identification and network path mapping, void Quasi- content agent, content search act on behalf of Collaborative Control, content optimization placement and path optimization, content caching management, control plane Content service data relaying, data plane content service data relaying.

22. system according to claim 18, which is characterized in that the infrastructure manager is further used for basis Content service layout result, virtual content network organizing layout result, virtual content network function layout result, virtual content net The layout of network and optimum results, will be in the virtual content network mapping to the resource of infrastructure.

23. system according to claim 18, which is characterized in that the system further comprises virtual content network management Device manages virtual content Network morals, manages in virtual content network for monitoring the state of virtual content network Content service business function chain carries out distribution, optimization, update and the deletion of the virtual resource of virtual content network.

24. system according to claim 18, which is characterized in that the system further comprises content network optimization collaboration Controller, for receiving targets manager/composer status information and/or assessment result information, according to docking collection of letters breath Whether assessment decisions, which need, optimizes, and assessment result is notified each targets manager/composer；When not needing optimization, notice is each Targets manager/composer continues Network Expert Systems；When needing to optimize, information completes content network based on the received Collaboration optimization, combined optimization control result is sent to and needs targets manager/composer for optimizing, alternatively, according to reception Information judgement need targets manager/composer for optimizing, and it is excellent to notify that corresponding targets manager/composer carries out Change processing；

Wherein, the targets manager/composer be content service composer, content network virtualization of function function composer, Virtual content network organizing composer, virtual content network manager, infrastructure manager.

25. system described in 8 or 24 according to claim 1, which is characterized in that the content service composer is further used for Corresponding physical content network, which is sliced, for content service carries out performance monitoring；Based on particular characteristic index, content service is cut Piece is assessed, and is made decisions to assessment result, or the content network optimizes commenting for collaborative controller based on the received Estimate court verdict to make decisions；If content service slice needs to optimize, optimized for content service slice, or Person, the combined optimization control result or optimization processing notification information optimize based on the received；If you do not need to optimization, then Continue to monitor content service slice.

26. the system according to claim 20 or 24, which is characterized in that the virtual content network organizing composer is used In for the corresponding physical content network progress performance monitoring of virtual content network；Based on particular characteristic index, supervised according to performance It surveys result to assess the networking performance of virtual content network, and be made decisions for performance evaluation result, or based on connecing The assessment decisions result for the content network optimization collaborative controller received carries out the judgement of virtual content network organizing；When need into When row virtual content network organizing layout optimizes, the networking layout optimization of virtual content network is carried out, alternatively, institute based on the received It states combined optimization control result or optimization processing notification information optimizes；When do not need carry out the layout of virtual content network organizing When optimization, continue to be monitored the corresponding physical content network of virtual content network.

27. the system according to claim 21 or 24, which is characterized in that the content network virtualization of function function layout Device is further used for carrying out performance monitoring to each virtual content network, particular characteristic index is based on, for virtual content network Relevant performance currently is combined with function and/or function to be assessed, and assessment result is provided；Judging virtual content network function is It is no to need to optimize, or the assessment decisions result of the content network optimization collaborative controller judges whether to need based on the received Optimization；If necessary to optimize, then start corresponding function optimization layout process, alternatively, the combined optimization control based on the received Result information processed or optimization processing notification information optimize；If you do not need to optimization, then continue to monitor the virtual content net The performance of network.

28. the system according to claim 22 or 24, which is characterized in that the infrastructure manager is further used for The optimization Coordination Decision of the virtual content network is received as a result, completing the corresponding object of virtual content network based on the information Manage the adaptive adjustment of content network；

The resource state information for collecting and monitoring the physical content network that all virtual content network mappings generate, according to the money Source status information, based on content service slice and/or virtual content network Service Quality Metrics, to content service slice and its The corresponding physical content network of affiliated each virtual content network carries out Performance Evaluation；Judged according to performance evaluation result specific Whether content service slice and its affiliated corresponding physical content network of each virtual content network need to optimize, or according to The assessment decisions result of the received content network optimization collaborative controller determines the need for optimizing；If you do not need to Optimization then continues to monitor the corresponding resource state information of physical content network；If necessary to optimize, then according to the Performance Evaluation As a result, being sliced to virtual content network, virtual content network function, the networking layout of virtual content network and/or content service Corresponding physical content network optimizes, alternatively, the combined optimization control result information or optimization processing based on the received Notification information optimizes.

29. system according to claim 18, which is characterized in that the system further comprises virtual content network-control Device, for receiving the resource using information, the network state information that are directed to the corresponding physical content network of virtual content Internet resources And service status information, life cycle, the virtual content network and service provider based on the virtual content network Content service slice between content service configuration information, the virtual content network networking and function layout state letter Breath determines the network state information of the virtual content network, and assesses the virtual content according to the network state information The performance of network and its corresponding physical content network refers to according to assessment result performance corresponding with this virtual content network Mark, starts optimization policing rule controlled based on the control of virtual content entry and/or virtual content agency with virtual content caching System and/or the relevant combined optimization of virtual content agentbased control, judge whether the optimum results meet this virtual content network pair The optimum results are sent to relevant to this suboptimization virtual by the performance indicator answered if meeting corresponding performance indicator Content caching, virtual content agency, and the corresponding change in resources information of optimal control result is notified into virtual content network management Device；If corresponding performance indicator can not be met, the performance evaluation result is sent to virtual content network manager, with Just virtual content network manager completes the optimization for being directed to the virtual content network.

30. system described in 8 or 29 according to claim 1, which is characterized in that the virtual content agency is further used for connecing The content service request is received, and the content service request is put into content service request table undetermined and is lined up；From described Content service request information is extracted in content service request table undetermined to be parsed；When content service request is that content information is searched When request, the content item in the virtual content caching of this virtual content agentbased control is searched according to parsing result；If searched To corresponding content item, then virtual content entry information and corresponding physical content location information cache are recorded；If looked into not It, then, will be corresponding according to joint, collaboration and/or the control planning between different virtual contents agency to corresponding content item Content service request is sent to other virtual contents agency；When content service request is content information upload request, virtual The virtual content information that content publisher's publication is recorded in content caching controls content publisher for content information and uploads to its institute In the physical content caching of category；When content service request is content migration request, required in migration for content publisher Hold, the cache location migration of complete cost content.