CN101540775B - Method and device for distributing contents and network system for distributing contents - Google Patents

Method and device for distributing contents and network system for distributing contents Download PDF

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CN101540775B
CN101540775B CN 200910138527 CN200910138527A CN101540775B CN 101540775 B CN101540775 B CN 101540775B CN 200910138527 CN200910138527 CN 200910138527 CN 200910138527 A CN200910138527 A CN 200910138527A CN 101540775 B CN101540775 B CN 101540775B
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cdn
content
information
request
distribution
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CN 200910138527
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CN101540775A (en
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黄卉
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements or protocols for real-time communications
    • H04L65/40Services or applications
    • H04L65/4069Services related to one way streaming
    • H04L65/4084Content on demand

Abstract

The embodiment of the invention discloses a method and a device for distributing contents and a network system for distributing contents, wherein the method for distributing contents comprises the following steps: receiving a content distribution request including the information of contents requested to be distributed; sending a query request including the information of contents requested to bedistributed to a top content distribution network control cell (TOP-CDNC); receiving target CDN related information returned by the TOP-CDNC; and requesting the target CDN to process the content distribution request. The embodiment of the invention can avoid the multilevel forwarding, even cycle forwarding of the content distribution request which can not be processed, effectively save time for processing the content distribution requests from users and return the response messages to the users in time, thereby improving the service quality of the CDN.

Description

内容分发方法、装置与内容分发网络系统 Content distribution method, apparatus and a content delivery network system

技术领域 FIELD

[0001] 本发明涉及通信技术,尤其是一种内容分发方法、装置与内容分发网络系统。 [0001] The present invention relates to communication technologies, in particular, a content distribution method, apparatus and system, a content distribution network. 背景技术 Background technique

[0002] 内容分发网络(Content Delivery Network,以下简称:CDN)技术是为了改善因特网(Internet)的服务质量(Quality of krvice,以下简称:QoS)而发展起来的一种技术。 [0002] CDN (Content Delivery Network, hereinafter referred to as: CDN) technology is to improve the quality of service (Quality of krvice, hereinafter referred to as: QoS) Internet (Internet) and developed a technology. 其通过内容的优化部署,实现用户对内容的就近访问及网络流量的智能分流,全面解决了由于网络带宽小、用户访问量大、网点分布不均等因素对用户访问效果的影响,大大提高了网络的响应速度。 By optimizing the deployment of its content, users achieve intelligent diversion to the nearest access to content and network traffic, a comprehensive solution to network bandwidth is small, affecting the user access to large, uneven distribution network and other factors on user access effect, greatly improving the network the response speed.

[0003] CDN技术的原理是:将媒体服务器分布式部署在网络中,使得内容提供端提供的媒体内容,能够按照既定的分发策略,预先从网络的骨干部分推送到最接近用户的网络“边缘”,例如:推送到“边缘”媒体服务器上,使得用户访问媒体内容时,可以从就近的“边缘”媒体服务器上得到快速响应,从而减少媒体内容传输延迟、网络抖动等因素对访问效果的影响,为用户提供有序且高质量的服务,使用户能以最快的速度,从网络中最接近用户的地方获得所需的信息。 [0003] CDN technology principle is: the media server deployed in a distributed network, so that the content provider to provide media content side, it is possible according to a predetermined distribution policy in advance from the backbone of the network closest to the user pushed to network "edge "when the media server, enabling a user to access media content from the nearest": ", for example, pushed to the" edge rapid response upper edge "media server, thereby reducing the impact of the media content transmission delay, network jitter and other factors on access effect to provide users with an orderly and high-quality services to enable users to the fastest, closest to the user from the network in place to get the required information. CDN技术极大地缓解了互联网的拥塞情况,使网站有能力提供更多类似视频节目、歌曲点播等数据流量巨大的媒体内容服务。 CDN technology greatly ease the congestion of the Internet, the site has the ability to provide more such video programming, great songs and other data traffic demand media content services.

[0004] 图1为现有技术⑶N的一个网络结构示意图。 [0004] FIG. 1 is a schematic diagram of a prior art network structure of ⑶N. 如图1所示,每个⑶N包括一个⑶N 控制单元(⑶N Controller,以下简称:⑶NC),与一个以上逻辑上相关联的集群,例如:地理位置上相关联的集群。 As shown in FIG. 1, each comprising a ⑶N ⑶N control unit (⑶N Controller, hereinafter referred to as: ⑶NC), with more than one cluster logically associated, for example: the cluster associated with the location. 每一个集群包括一个集群控制单元(Cluster Controller,以下简称:CC),与一个以上逻辑上相关联的内容分发功能实体(Content Delivery Function, 以下简称:⑶F),例如:地理位置、存储容量上相关联的⑶F。 Each cluster comprises a cluster control unit (Cluster Controller, hereinafter referred to as: the CC), with one or more logically associated content delivery functional entity (Content Delivery Function, hereinafter referred to as: ⑶F), for example: geographically related storage capacity linked ⑶F. 其中,⑶F也即媒体服务器,主要负责存储媒体内容并向用户分发媒体内容;CC主要负责管理所在集群内的资源,包括决策媒体内容在集群内的分布、监控CDF的状态以及决策提供媒体内容分发服务的CDF ;CDNC 是所在CDN内的控制中心,主要控制媒体内容在CDN内各集群中的分布,以及决策向用户提供服务的集群等。 Which, ⑶F media server that is primarily responsible for storing media content and distribution of user media content; resources within the cluster where CC is responsible for management, including decision-making within the cluster distribution of media content, monitor the status of CDF and decision-making media content distribution CDF services; CDNC control center is located within the CDN, the main control media content distribution in each cluster within the CDN, as well as decision-making services to users of cluster and so on.

[0005] 在媒体内容较为复杂时,往往需要由多个CDN联合形成一个大规模的CDN来向用户提供服务,该大规模的CDN也称为总CDN。 [0005] When the media content is more complex, often require a large joint formed by a plurality of CDN CDN is used to provide services to users, also referred to as the total large CDN CDN. 在该大规模的内容分发网络中,各CDN分别作为子⑶N,由⑶NC控制其内部的内容分发。 In the large-scale content delivery network, CDN, respectively, each as a sub ⑶N, the content of which is controlled by the internal ⑶NC distribution. 对于需要使用⑶N的应用系统(Application System,以下简称:AS),例如:互联协议电视(Internet Protocol TV,以下简称=IPTV) AS, 内容点播(contenton demand,以下简称:C0D)AS等,设置一个缺省的子CDN。 The need to use ⑶N of applications (Application System, hereinafter referred to as: AS), for example: Internet Protocol TV (Internet Protocol TV, hereinafter referred to as = IPTV) AS, content-on-demand (contenton demand, hereinafter referred to as: C0D) AS, etc., set up a the default sub CDN. 当AS发送内容分发请求时,首先将该内容分发请求发送到该缺省的子CDN中的CDNC,在缺省CDN中的CDNC无法提供服务时,再将内容分发请求转发给总CDN中其它子CDN的CDNC处理,若该CDNC处理仍然无法提供服务,则继续将该内容分发请求转发给总CDN中其它子CDN的CDNC 处理,依次类推,并可能在总CDN中出现内容分发请求的循环转发。 When the AS sends a content distribution request, the first content distribution request to the default sub CDN in CDNC, CDNC in default of the CDN can not provide services, content distribution and then forwards the request to the other sub-total CDN CDN's CDNC process, if the process CDNC still unable to provide service, continue to distribute the content request is forwarded to the other sub-CDN CDN total of CDNC processing, and so on, and content distribution request cycle may occur in total CDN forwarding.

[0006] 在实现本发明的过程中,发明人发现现有CDN向用户提供内容分发服务的技术至少存在以下问题:[0007] 若由于接收到内容分发请求的子CDN没有存储用户请求的媒体内容,或负载较高无法处理该内容分发请求,将造成该内容分发请求的多级转发甚至循环转发,这样,就增加了处理用户内容分发请求的时间,甚至无限延长了处理用户内容分发请求的时间,尤其在总CDN中包括的子CDN数目较多的情况下,无法在可接受的时间内向用户返回响应消息,降低了CDN的服务质量。 [0006] During the implementation of the present invention, the inventors have found that prior the CDN content distribution service to the user at least the following technical problems: [0007] If the result of receiving the sub-CDN content distribution request is not stored in the media content requested by the user time delivery request or a higher load can not process the content distribution request, will forward the cause multi-level content distribution request even cycle forward, so that increases the time to process user requests content distribution, and even the indefinite extension of the process user content , especially in the large total number of sub-CDN under conditions include a CDN, not within an acceptable time the user returns a response message, reducing the quality of service of the CDN.

发明内容 SUMMARY

[0008] 本发明实施例所要解决的技术问题是:提供一种内容分发方法、装置与内容分发网络系统,以缩短处理用户内容分发请求的时间,提高CDN的服务质量。 [0008] The technical problem to be solved by embodiments of the present invention are: to provide a content distribution method, a content distribution device and the network system to shorten processing time of the user content distribution request, to improve the quality of service of the CDN.

[0009] 本发明实施例提供的一种内容分发处理方法,包括: [0009] A content according to an embodiment of the present invention, the distribution processing method, comprising:

[0010] 接收内容分发请求,该内容分发请求中包括请求分发的内容信息; [0010] receiving a content distribution request, the content distribution request includes content information distribution request;

[0011] 向顶级内容分发网络控制单元TOP-⑶NC发送查询请求,该查询请求中包括所述请求分发的内容信息; [0011] Content distribution network to the top TOP-⑶NC control unit transmits a query request, the query request comprises a request for the content information distribution;

[0012] 接收所述TOP-⑶NC返回的目标⑶N相关信息; [0012] TOP-⑶NC receiving the target information returned ⑶N;

[0013] 请求所述目标⑶N处理所述内容分发请求。 [0013] requesting the target ⑶N the content distribution request processing.

[0014] 本发明实施例提供的一种内容分发装置,包括: [0014] A content according to an embodiment of the present invention, the distribution apparatus comprising:

[0015] 第一接收模块,用于接收内容分发请求,该内容分发请求中包括请求分发的内容信息,以及接收TOP-⑶NC返回的目标⑶N相关信息; [0015] a first receiving module, configured to receive a content distribution request, the content distribution request includes content information in the distribution request, and receiving the return target TOP-⑶NC ⑶N information;

[0016] 第一发送模块,用于向所述TOP-⑶NC发送查询请求,该查询请求中包括所述请求分发的内容信息; [0016] The first sending module, configured to send a query request to the TOP-⑶NC, the query request comprises a request for the content information distribution;

[0017] 请求处理模块,用于根据所述目标CDN相关信息,请求所述目标CDN处理所述内容分发请求。 [0017] The request processing module, for CDN information according to the target, the target requesting the CDN content distribution request processing.

[0018] 基于本发明上述实施例提供的内容分发方法与装置,可以向TOP-⑶NC发送查询请求,从TOP-CDNC获取处理该内容分发请求的目标CDN相关信息,据此直接请求目标CDN 处理该内容分发请求,与现有技术相比,避免了无法处理该内容分发请求时对其进行多级转发甚至循环转发,有效节省了处理用户内容分发请求的时间,可以及时向用户返回响应消息,从而提高了CDN的服务质量。 [0018] The content distribution method and apparatus of the present invention provides the above-described embodiment based, may send a query request to the TOP-⑶NC, obtaining information about the process target CDN content distribution request from the TOP-CDNC, whereby the direct processing request destination CDN content distribution request, compared with the prior art, of being unable to process the contents subjected to a multi-stage cycle even forwarding forwarding, saving the user time to process the content distribution request may be promptly returned to the user in response to the distribution request message, thereby improve the quality of service of the CDN.

[0019] 本发明实施例提供的一种目标内容分发网络选择方法,包括: [0019] An object of the present invention, an embodiment of the content delivery network selection method, comprising:

[0020] 接收源CDN发送的查询请求,该查询请求中包括用户终端请求分发的内容信息; [0020] CDN receiving query request sent by the source, the query request includes a content distribution request information of the user terminal;

[0021] 根据分布所述内容的CDN信息,选择向所述用户终端分发所述内容的目标CDN ; [0021] The CDN information on the distribution of the content, selecting a terminal to distribute the content to the target user CDN;

[0022] 向所述源⑶N发送所述目标⑶N信息。 [0022] transmits the information to the target ⑶N source ⑶N.

[0023] 本发明实施例提供的一种目标内容分发网络选择装置,包括: [0023] An object of the present invention, an embodiment of the content delivery network selection apparatus, comprising:

[0024] 第三接收模块,用于接收源⑶N发送的查询请求,该查询请求中包括用户终端请求分发的内容信息; [0024] The third receiving module, for receiving query requests sent by the source ⑶N, the query request includes a content distribution request information of the user terminal;

[0025] 存储模块,用于存储分布各内容的CDN信息; [0025] The storage module, CDN content information distribution for each store;

[0026] 获取模块,用于从所述存储模块中获取分布所述内容的CDN信息; [0026] obtaining module, configured to obtain the distribution of the content from the CDN information storage module;

[0027] 第二选择模块,用于根据分布所述内容的CDN信息,选择向所述用户终端分发所述内容的目标CDN; [0027] The second selection module, according to the CDN content distribution information, to the user terminal selecting CDN distribution destination of the content;

[0028] 第二发送模块,用于向所述源⑶N发送所述目标⑶N信息。 [0028] The second sending module, configured to send the information to the target ⑶N source ⑶N. [0029] 本发明实施例提供的另一种目标内容分发网络选择方法,包括: [0029] Another object of the distribution network selection method according to an embodiment of the present invention, comprising:

[0030] 接收源CDN发送的查询请求,该查询请求中包括用户终端请求分发的内容信息; [0030] CDN receiving query request sent by the source, the query request includes a content distribution request information of the user terminal;

[0031] 向所述源CDN发送分布所述内容的目标CDN信息,以便所述源CDN选择向所述用户终端分发所述内容的目标CDN。 [0031] The distribution of the content sent to the source target CDN CDN information to the distribution source terminal CDN selecting the content to the target user CDN.

[0032] 本发明实施例提供的另一种目标内容分发网络选择装置,包括: [0032] Another object of the distribution network selecting device according to an embodiment of the present invention, comprising:

[0033] 第三接收模块,用于接收源⑶N发送的查询请求,该查询请求中包括用户终端请求分发的内容信息; [0033] The third receiving module, for receiving query requests sent by the source ⑶N, the query request includes a content distribution request information of the user terminal;

[0034] 存储模块,用于存储分布各内容的CDN信息; [0034] The storage module, CDN content information distribution for each store;

[0035] 获取模块,用于从所述存储模块中获取分布所述内容的CDN信息; [0035] The obtaining module, configured to obtain the distribution of the content from the CDN information storage module;

[0036] 第三发送模块,用于向所述源⑶N发送分布所述内容的目标⑶N信息,以便所述源CDN选择向所述用户终端分发所述内容的目标CDN。 [0036] The third sending module, for sending profile information of the target ⑶N content ⑶N to the source, so that the source terminal CDN distributing the selected content to the target user CDN.

[0037] 本发明实施例提供的一种内容分发网络系统,包括一个TOP-⑶NC与多个⑶N,所述多个CDN中的源CDN用于接收内容分发请求,该内容分发请求中包括请求分发的内容信息;向所述T0P-CDNC发送查询请求,该内容分发请求中包括所述请求分发的内容信息;以及接收所述T0P-CDNC返回的目标CDN信息;根据所述目标CDN信息,请求所述目标CDN处理所述内容分发请求; [0037] A content distribution embodiment of the present invention to provide a network system, comprising a plurality of TOP-⑶NC ⑶N, said plurality of sources in the CDN CDN for receiving a content distribution request, the content distribution request including the distribution request content information; sends a query to the T0P-CDNC, the content distribution request includes content information of the distribution request; and receiving the target information CDN T0P-CDNC returned; CDN according to the target information, the request the above objectives CDN content distribution request processing;

[0038] 所述TOP-CDNC用于存储分布各内容的CDN信息;接收所述查询请求,获取分布所述内容的CDN信息;根据该分布所述内容的CDN信息选择向所述用户终端分发所述内容的目标⑶N ;并向所述源⑶N发送所述目标⑶N信息。 [0038] The CDN TOP-CDNC for storing information of each content distribution; receiving the query request, acquiring a CDN distribution of the content information; choose to distribute to the user terminal information of the distribution according to the CDN content ⑶N said target content; ⑶N target and send the information of the source ⑶N.

[0039] 本发明实施例提供的另一种内容分发网络系统,包括一个TOP-⑶NC与多个⑶N, 所述多个CDN中的源CDN用于接收内容分发请求,该内容分发请求中包括请求分发的内容信息;向所述T0P-CDNC发送查询请求,该内容分发请求中包括所述请求分发的内容信息; 以及接收所述T0P-CDNC返回的分布所述内容的CDN信息;根据分布所述内容的CDN信息, 选择用于处理所述内容分发请求的目标CDN ;并根据所述目标CDN信息,请求所述目标CDN 处理所述内容分发请求; [0039] Another embodiment provides a content distribution network system of the embodiment of the present invention, comprises a plurality of TOP-⑶NC ⑶N, said plurality of sources in the CDN CDN for receiving a content distribution request, the content distribution request includes a request contents information distributed; T0P-CDNC sends the query request, the content distribution request includes content information of the distribution request; and receiving the distribution information of the content CDN T0P-CDNC returned; the distribution according to CDN content is selected for the processing target CDN content distribution request; CDN information and according to the target, the target CDN request processing the content distribution request;

[0040] 所述TOP-CDNC用于存储分布各内容的CDN信息;接收所述查询请求,获取分布所述内容的CDN信息;并向所述源CDN发送分布所述内容的CDN信息。 [0040] The CDN TOP-CDNC for storing information of each content distribution; receiving the query request, acquiring a CDN distribution of the content information; CDN information and transmits the content distribution source of the CDN.

[0041] 基于本发明上述实施例提供的目标内容分发网络选择方法与装置、内容分发网络系统,TOP-CDNC可以根据的分布各内容的CDN信息,获取处理该内容分发请求的目标CDN相关信息并发送给源CDN,以便于源CDN直接请求目标CDN处理该内容分发请求,与现有技术相比,避免了源CDN无法处理该内容分发请求时对其进行多级转发甚至循环转发,有效节省了处理用户内容分发请求的时间,可以及时向用户返回响应消息,从而提高了CDN的服务质量。 [0041] The object of the distribution network selection methods and apparatus, a content distribution network system, CDN information based on the above-described embodiments of the present invention provides the distribution of content TOP-CDNC according to obtain the target CDN information process the content distribution request and CDN sent to the source, in order to target direct request source CDN CDN content distribution deal with the request, compared with the prior art, to avoid the source CDN can not process the contents of its multi-level forwards the request even when the distribution cycle forward, effectively saving content distribution request processing time for the user to be promptly returns a response message to the user, thereby improving the quality of service of the CDN.

[0042] 本发明实施例提供的一种源内容分发网络选择方法,包括: [0042] A content source according to an embodiment of the present invention, the distribution network selection method, comprising:

[0043] 接收用户终端发送的请求消息,该请求消息中包括用户信息; [0043] The receiving user terminal transmits a request message, the request message includes the user information;

[0044] 根据所述用户信息确定所述用户的地域属性; [0044] The user information is determined according to the properties of the user area;

[0045] 从⑶N系统中选择一个与所述用户的地域属性对应的⑶N,作为处理所述用户终端发送的内容分发请求的源⑶N。 [0045] the user to select a system from ⑶N area corresponding to the attribute ⑶N, as the processing content the user terminal transmits the distribution request source ⑶N.

[0046] 本发明实施例提供的一种源内容分发网络选择装置,包括:[0047] 第二接收模块,用于接收用户终端发送的请求消息,该请求消息中包括用户信息; [0046] A content source according to an embodiment of the present invention, the distribution network selection apparatus, comprising: [0047] a second receiving module, configured to receive a request message sent by the user terminal, the request message includes the user information;

[0048] 确定模块,用于根据所述用户信息确定所述用户的地域属性; [0048] determination means for geographical attribute of the user is determined according to the user information;

[0049] 第一选择模块,用于从CDN系统中选择一个与所述用户的地域属性对应的CDN,作为处理所述用户终端发送的内容分发请求的源CDN。 [0049] The first selecting means for selecting one of the system user from the CDN CDN region corresponding to the attribute, the content processing as the user terminal transmits the distribution request source CDN.

[0050] 基于本发明上述实施例提供的源内容分发网络选择与装置,可以根据用户的地域属性确定作为处理其用户终端发送的内容分发请求的源CDN,这样,可以由该源CDN作为缺省⑶N处理其用户终端发送的内容分发请求,TOP-⑶NC只作为查询中心,而不用由TOP-CDNC集中处理内容分发请求,从而可以大大提高CDN系统的性能,节省在源子CDN无法处理内容分发请求时的轮询时间,提高业务处理效率。 [0050] source network selects a content distribution apparatus based on the embodiment of the present invention provides, as may be determined that the user terminal transmits the processing contents according to a user's local properties of the distribution source of the request CDN, so that, as a default by the source CDN ⑶N processing which the user terminal the content transmitted distribution request, TOP-⑶NC only as ICC, rather than centralized processing contents by the TOP-CDNC distribution request, which can greatly improve the performance of CDN system, saving can not be processed in the source sub-CDN content distribution request polling time and improve business efficiency. 下面通过附图和实施例,对本发明的技术方案做进一步的详细描述。 The following drawings and embodiments, detailed description of the further aspect of the present invention.

附图说明 BRIEF DESCRIPTION

[0051] 图1为现有技术⑶N的一个网络结构示意图; [0051] FIG. 1 is a schematic diagram of a prior art network structure of ⑶N;

[0052] 图2为本发明内容分发方法一个实施例的流程图; [0052] FIG 2 is a flowchart of one embodiment of a content distribution method of the invention;

[0053] 图3为本发明⑶N系统一个实施例的结构示意图; [0053] FIG. 3 is a schematic structural diagram of the embodiment of the invention ⑶N system;

[0054] 图4为本发明内容分发处理方法另一个实施例的流程图; [0054] FIG. 4 content distribution processing method flowchart of another embodiment of the present invention;

[0055] 图5为本发明内容分发方法一个应用实施例的流程图; Application of a flowchart of an embodiment of the content distribution method [0055] FIG. 5 of the present invention;

[0056] 图6为本发明内容分发方法又一个实施例的流程图; [0056] The content distribution method of FIG 6 a flow diagram of another embodiment of the present invention;

[0057] 图7为本发明源⑶N选择方法一个实施例的流程图; [0057] FIG. 7 Source selection method ⑶N a flowchart of one embodiment of the present invention;

[0058] 图8为本发明目标⑶N选择方法一个实施例的流程图; [0058] FIG 8 is a flowchart of an embodiment of the method of selecting the target ⑶N invention;

[0059] 图9为本发明目标CDN选择方法另一个实施例的流程图; [0059] FIG. 9 is a flowchart of another embodiment of the invention, the target selection method CDN;

[0060] 图10为本发明生成分布内容的⑶N信息一个实施例的流程图; [0060] FIG 10 generates ⑶N content distribution information flow diagram of one embodiment of the present invention;

[0061] 图11为本发明内容分发装置一个实施例的结构示意图; [0061] FIG. 11 is a schematic configuration example of the content distribution device according to one embodiment of the present invention;

[0062] 图12为本发明内容分发装置另一个实施例的结构示意图; SUMMARY [0062] FIG. 12 is a schematic structural diagram of another embodiment of the invention the distribution means of the embodiment;

[0063] 图13为本发明内容分发装置又一个实施例的结构示意图; [0063] The content distribution device 13 a schematic structural diagram of another embodiment of the present invention;

[0064] 图14为本发明源⑶N选择装置一个实施例的结构示意图; [0064] FIG. 14 is a schematic structural diagram of an embodiment of the invention the source of the embodiment ⑶N selection means;

[0065] 图15为本发明目标⑶N选择装置一个实施例的结构示意图; [0065] FIG. 15 is a schematic configuration example of a target device selection ⑶N embodiment of the invention;

[0066] 图16为本发明目标⑶N选择装置另一个实施例的结构示意图; [0066] FIG 16 a schematic structural diagram of another embodiment of the invention, the target ⑶N selecting means;

[0067] 图17为本发明目标⑶N选择装置又一个实施例的结构示意图; [0067] FIG. 17 is a schematic structural diagram of another embodiment of the invention, the target ⑶N selecting means;

[0068] 图18为本发明目标⑶N选择装置再一个实施例的结构示意图。 [0068] FIG. 18 is a schematic structural diagram of another embodiment of the invention the target ⑶N selecting means.

具体实施方式 Detailed ways

[0069] 本发明实施例可以在CDN系统中直接选择一个可以处理该内容分发请求的目标CDN,来处理该内容分发请求,从而避免了源CDN无法处理该内容分发请求时,尤其是CDN规模较大时,对内容分发请求的多级转发甚至循环转发。 When the [0069] embodiments of the present invention can be selected that can handle the target CDN content distribution request to process the content distribution request, thereby avoiding source CDN can not process the content distribution request directly in the CDN system, in particular CDN scale than when a large, multi-level forwarding requests for content distribution even cycle forward.

[0070] 图2为本发明内容分发方法一个实施例的流程图。 [0070] FIG 2 is a flowchart of one embodiment of a content distribution method of the invention. 如图2所示,该实施例的内容分发方法包括以下步骤: 2, the content distribution method of this embodiment comprises the steps of:

[0071] 步骤101,接收内容分发请求,该内容分发请求中包括请求分发的内容信息,另外,还包括请求分发内容的用户终端(User Equipment,以下简称:UE)地址信息。 [0071] Step 101, receives the content distribution request, the requested content includes content distribution request information distribution, additionally, further comprising a user terminal requests content distribution (User Equipment, hereinafter referred to as: UE) address information.

[0072] 步骤102,向顶级CDN控制单元(TOP-CDN Controller,以下简称:T0P-CDNC)发送查询请求,该查询请求中包括请求分发的内容信息。 [0072] Step 102, the control unit CDN to the top (TOP-CDN Controller, hereinafter referred to as: T0P-CDNC) sending a query request, the query request comprises a requested content information distribution.

[0073] 作为本发明的一个实施例,可以由多个⑶N构成一个总⑶N,并由该总⑶N与TOP-⑶NC构成一个⑶N系统。 [0073] As one embodiment of the present invention, it may be constituted by a plurality of ⑶N ⑶N total, by the total ⑶N with TOP-⑶NC ⑶N constitute a system. 如图3所示,为本发明⑶N系统一个实施例的结构示意图。 As shown in FIG. 3, a schematic structural diagram of the embodiment of the present invention ⑶N system. 在该⑶N系统中,TOP-⑶NC中可以收集各⑶N中存储的内容信息与⑶N的状态信息,并生成分别各内容的CDN信息。 ⑶N In this system, the TOP-⑶NC may collect status information of each content stored in the ⑶N ⑶N and generating each respective CDN content information. 在多个CDN中,缺省处理内容分发请求的CDN称为源CDN或缺省CDN,具体可以是按照某种规则预先设置。 A plurality of the CDN, the content distribution request the default processing called source CDN CDN CDN or default, may be specifically provided in advance according to certain rules.

[0074] 步骤103,接收TOP-⑶NC返回的目标⑶N相关信息。 [0074] Step 103, TOP-⑶NC receiving target information returned ⑶N.

[0075] 具体地,该目标⑶N相关信息可以是处理内容分发请求的目标⑶N信息,其中的目标⑶N由TOP-⑶NC根据分布该内容的⑶N信息选择得到。 [0075] Specifically, the target ⑶N related information may be information processing target ⑶N content distribution request, wherein the target ⑶N obtained by the TOP-⑶NC ⑶N information selection according to the content distribution.

[0076] 另外,该目标CDN相关信息也可以是分布该内容分发请求所请求分发的内容的CDN信息。 [0076] Further, the object-related information may be CDN content distribution CDN content distribution request for the requested distribution. 此时,可以根据分布该内容的CDN信息,选择用于处理该内容分发请求的目标CDN。 In this case, according to the distribution of the content information CDN, the CDN selecting a target content distribution request processing.

[0077] 其中,目标⑶N信息具体可以是目标⑶N的IP地址信息、媒体访问控制(Media Access Control,以下简称:MAC)地址信息、路由信息等所有可以定位该目标⑶N的信息。 [0077] wherein, the target ⑶N specific information may be the IP address information of the target ⑶N, media access control (Media Access Control, hereinafter referred to as: MAC) information address information, routing information, etc. all may be positioned in the target ⑶N.

[0078] 步骤104,根据该目标⑶N相关信息,请求目标⑶N处理该内容分发请求。 [0078] Step 104, based on the target ⑶N information, request destination ⑶N process the content distribution request.

[0079] 本发明上述图2所示的该实施例具体可以由发送内容分发请求的UE的源CDN实现。 This particular embodiment CDN source may transmit the content distribution request from the UE shown in FIG [0079] 2 according to the present invention is implemented. 在源⑶N处理UE发送的内容分发请求时,向TOP-⑶NC发送查询请求,从TOP-⑶NC获取处理该内容分发请求的目标CDN相关信息,直接选择一个可以处理该内容分发请求的目标CDN,并请求该目标CDN处理内容分发请求,从而避免了处理该内容分发请求时,尤其是CDN规模较大时,对内容分发请求的多级转发甚至循环转发,有效节省了处理用户内容分发请求的轮询时间,可以及时向用户返回响应消息,从而提高了CDN的服务质量,改善了用户体验。 When the content source ⑶N process the UE sends a distribution request is transmitted to the TOP-⑶NC query request to obtain the processing target CDN-related information to the content distribution request from the TOP-⑶NC, direct selection may be processing target CDN content distribution request, and CDN processing content requests to the target distribution request, so as to avoid dealing with the content distribution request, especially when CDN large-scale, multi-level forwarding requests for content distribution even cycle forward, effectively saving the polling process user requests content distribution time, timely response message returned to the user, thereby improving the quality of service CDN, improving the user experience.

[0080] 在本发明的各实施例中,分布内容的CDN信息可以是存储该内容的CDN及其状态信息。 [0080] In various embodiments of the present invention, CDN content distribution information may be stored in the CDN content with their status information. 其中,存储该内容的CDN信息可以是该内容与存储该内容的CDN信息,或者各CDN与其存储的内容信息之间的对应关系信息。 Wherein storing the contents information may be CDN CDN information of the content stored in the content, or content stored in each of its CDN correspondence relationship between the information. CDN的状态信息包括CDN的负载与健康状态信息, 其中,源CDN接收到内容分发请求后,由于其中的CDF向UE分发其请求的内容,导致CDF的会话请求增加,增加了该CDF所在集群的负载,从而增加了该CDN的负载。 State information CDN comprises load health information CDN, wherein the source CDN receiving the content delivery request, due to which the CDF to distribute the contents of its request to the UE, resulting in CDF session request increases, increasing the CDF where cluster load, thereby increasing the load of the CDN. 健康状态标识该⑶N是否能够正常工作,当一个⑶N的负载达到上限时,就不能再处理新的内容分发请求, 健康状态可能变化为CDF异常。 Whether health status to identify the ⑶N to work properly, a ⑶N when the load reaches the upper limit, you can not process new content distribution request, health status may change CDF exception.

[0081 ] 在本发明的各实施例中,缺省⑶N也可以仅在无法处理UE发送的内容分发请求时,向TOP-⑶NC发送查询请求,这样就可以减少在缺省⑶N本身可以处理UE发送的内容分发请求时,而请求目标CDN处理该内容分发请求所需要的时间,从而节省处理用户内容分发请求的轮询时间,可以及时向用户返回响应消息,从而提高了CDN的服务质量,改善了用户体验。 [0081] In various embodiments of the present invention, the default ⑶N may be unable to process only when the content distribution request sent by the UE, sends a query to TOP-⑶NC, so that you can reduce the process itself may be a default UE transmits ⑶N the contents distribution request, and the request destination CDN content distribution request processing time required, thereby saving time polling processing user content distribution request, a response message can be promptly returned to the user, thereby improving the quality of service of the CDN, improved user experience.

[0082] 图4为本发明内容分发处理方法另一个实施例的流程图。 [0082] FIG. 4 content distribution processing method flowchart of another embodiment of the present invention. 如图4所示,该实施例的内容分发处理方法包括以下步骤: As shown, the content distribution processing method of the embodiment 4 includes the following steps:

[0083] 步骤201,源CDN接收内容分发请求,该内容分发请求中包括请求分发的内容信息,另外,还包括请求分发内容的UE地址信息。 [0083] Step 201, the source receives the CDN content distribution request, the requested content includes content distribution request information distribution. In addition, the address request UE further comprising distributing content information.

[0084] 步骤202,源⑶N向⑶N系统中的TOP-⑶NC发送查询请求,该查询请求中包括内容分发请求所请求分发的内容信息。 [0084] Step 202, sends a query to the source ⑶N ⑶N system TOP-⑶NC, the query request includes a content distribution request to distribute the requested content information.

[0085] 步骤203,接收TOP-⑶NC选择并返回的目标⑶N信息。 [0085] Step 203, TOP-⑶NC received selection information, and returns the target ⑶N.

[0086] 步骤204,源⑶N根据目标⑶N信息,请求相应的目标⑶N处理该内容分发请求。 [0086] Step 204, the source ⑶N ⑶N the target information corresponding to the request target ⑶N process the content distribution request.

[0087] 作为一个具体的实施例,步骤204中,源CDN可以将该内容分发请求转发给目标CDN,具体地,可以将该内容分发请求重定向至目标CDN,也可以将该内容分发请求直接转发给目标CDN ;目标CDN处理该内容分发请求,根据该内容分发请求,向UE分发内容。 [0087] As a specific embodiment, in step 204, the source CDN content distribution request can be forwarded to the target CDN, in particular, may be redirected to the content distribution request certain CDN, the content distribution request may be directly CDN forwarded to the target; the target CDN content distribution request processing, based on the content distribution request, distribution of content to the UE.

[0088] 作为另一个具体的实施例,步骤204中,源⑶N可以根据目标⑶N信息,从目标⑶N 获取内容分发请求所请求分发的内容,并根据内容分发请求,向UE分发内容。 [0088] As another specific embodiment, in step 204, the target can ⑶N source ⑶N information, acquires content ⑶N requested distributed content distribution request from the target, and according to the content distribution request, distribution of content to the UE.

[0089] 基于大容量CDN中用户内容分发请求并发度高的特点,为了减少TOP-CDNC处理的会话数量,避免T0P-CDNC成为整个CDN系统的性能瓶颈,在该图4所示的实施例中,采取去中心化方法处理来自UE的内容分发请求,即:先由作为缺省CDN的源CDN处理内容分发请求,TOP-⑶NC只作为查询中心。 [0089] The distribution request based on the characteristics of a large capacity high concurrent user CDN content, in order to reduce the number of treatment sessions TOP-CDNC avoid T0P-CDNC become a performance bottleneck of the entire system CDN, the embodiment illustrated in FIG. 4 take decentralized approach to content distribution request from the UE, namely: first processing content as a default source CDN CDN distribution request, TOP-⑶NC just as the ICC. 而不是直接由TOP-⑶NCC集中处理来自UE的内容分发请求,可以大大提高CDN系统的性能,进一步节省在源CDN无法处理内容分发请求时的轮询时间,提高业务处理效率。 Rather than focusing on the processing contents from the UE directly from the TOP-⑶NCC distribution request, the system can greatly improve the performance of the CDN, further savings can not be processed when the polling source CDN content distribution request, to improve business efficiency.

[0090] 图5为本发明内容分发处理方法一个应用实施例的流程图,该实施例为图4所示实施例的一个具体应用。 SUMMARY [0090] FIG. 5 of the present invention, a method of processing application distribution flowchart of an embodiment, this embodiment is a specific application of the embodiment shown in FIG. 4. 如图5所示,该应用实施例包括以下步骤: It is shown, comprising the steps of Example 5 of the application:

[0091] 步骤301,COD AS接收用户通过其UE发送的业务请求消息,请求获取某一内容,该业务请求消息中携带有UE地址信息。 [0091] Step 301, COD AS user through its service request message sent by the UE, a request for acquiring the content, the service request message carries address information of the UE.

[0092] 步骤302,COD AS获取用户标识对应的归属区域,确定为该用户提供服务的源⑶N,并向UE返回内容的获取地址,即:源⑶NC的IP地址,具体地,可以通过一个统一资源标识符(Uniform Resource identifier,以下简称:URI)向UE返回内容的获取地址。 [0092] Step 302, COD AS acquires the user identifier corresponding to the home area, determining a source ⑶N serving the user, and the address returned by the UE acquires content, namely: IP address of the source ⑶NC, in particular, by a unified resource identifier (Uniform resource identifier, hereinafter referred to as: URI) returned content to obtain the address of the UE.

[0093] 步骤303,UE根据源⑶N的地址信息,向源⑶N发送内容分发请求,其中携带有用户请求分发的内容与UE地址信息。 [0093] Step 303, the address information source ⑶N UE transmits to the content distribution request ⑶N source, which carries a user requests content information distribution and the UE address.

[0094] 步骤304,源⑶N接收到内容分发请求,判断是否可以处理该内容分发请求,例如: 是否存储有用户请求的内容以及该源CDN的状态是否正常。 [0094] Step 304, the source ⑶N content distribution request is received, determining whether the content distribution request can be processed, for example: if a user request whether the content is stored and the state of the normal source CDN. 若可以处理该内容分发请求, 执行步骤305。 When the content distribution request can be processed, step 305 is performed. 否则,若无法处理该内容分发请求,执行步骤306。 Otherwise, if the content distribution request can not be processed, step 306 is performed.

[0095] 步骤305,源⑶N向UE返回响应消息,向UE分发其请求的内容。 [0095] Step 305, the source ⑶N returns to the UE a response message, which requests for distributing content to the UE. 之后,不再执行本实施例的后续流程。 Thereafter, the subsequent procedure is not executed in the present embodiment.

[0096] 步骤306,源⑶N向其所在⑶N系统中的TOP-⑶NC发送查询请求,该查询请求中包括请求分发的内容信息。 [0096] Step 306, the source ⑶N Send request thereto is located ⑶N system TOP-⑶NC, the query request includes a content distribution request information.

[0097] 步骤307,Τ0Ρ-⑶NC根据分布内容分发请求所请求分发的内容的⑶N信息,选择用于处理该内容分发请求的目标⑶N,并将该目标⑶N的地址信息发送给源⑶N。 [0097] Step 307, Τ0Ρ-⑶NC ⑶N the content distribution according to the distribution request for content distribution request, the processing for selecting the target ⑶N content distribution request, and transmits the target address information to the source ⑶N ⑶N.

[0098] 步骤308,源⑶N根据目标⑶N的地址信息,向UE发送重定向请求,该重定向请求中包括目标CDN的地址信息,请求UE将内容分发请求重定向至目标CDN。 [0098] Step 308, the source address information of the target ⑶N ⑶N, the UE transmits to the redirect request, redirect the request includes address information of the target the CDN, the content distribution request to the UE redirects the request to the target CDN. 另外,该重定向请求中携带的目标CDN信息也可以是除目标CDN的地址信息以外的其它信息,只要源CDN据此可以向目标⑶N发送消息即可。 Further, the redirection request carries the target CDN information may be information other than the address information of the target of the CDN, the CDN accordingly as long as the source to the target may send a message to ⑶N.

[0099] 步骤309,UE根据重定向请求的目标⑶N的地址信息,将该内容分发请求发送给目标CDN。 [0099] Step 309, UE according to the address information of the redirect request ⑶N target, the content distribution request to the target CDN.

[0100] 步骤310,目标CDN接收到内容分发请求后,根据预先设置的策略选择其中的一个⑶F,向UE分发其请求的内容。 [0100] Step 310, after receiving the target CDN content distribution request, according to a preset policy ⑶F wherein the selected distribution content it requests the UE.

[0101] 图6为本发明内容分发方法又一个实施例的流程图。 [0101] FIG 6 is a flowchart of another embodiment of a content distribution method of the invention. 如图6所示,该实施例的内容分发处理方法包括以下步骤: 6, the content distribution processing method of an embodiment comprises the steps of:

[0102] 步骤401,源⑶N接收UE发送的内容分发请求,该内容分发请求中包括请求分发的内容信息与请求分发内容的UE地址信息。 [0102] Step 401, the source UE ⑶N receiving content transmitted distribution request, the content distribution request includes content information with the UE requests address information distribution content distribution request.

[0103] 步骤402,源⑶N向所在⑶N系统中的TOP-⑶NC发送查询请求,该查询请求中包括请求分发的内容信息。 [0103] Step 402, the source host sends a query to ⑶N ⑶N system TOP-⑶NC, the query request includes a content distribution request information.

[0104] 步骤403,TOP-⑶NC将分布内容分发请求所请求分发的内容的⑶N信息发送给源CDN。 ⑶N information [0104] Step 403, TOP-⑶NC content distribution request to the content distribution profile of the source of the request to the CDN.

[0105] 步骤404,源CDN根据分布内容分发请求所请求分发的内容的CDN信息,选择一个用于处理该内容分发请求的目标CDN。 [0105] Step 404, the source CDN CDN content distribution request to the content distribution according to the distribution request, selecting a target for processing the CDN content distribution request.

[0106] 步骤405,源⑶N请求目标⑶N处理该内容分发请求。 [0106] Step 405, the source ⑶N request destination ⑶N process the content distribution request.

[0107] 基于大容量CDN中用户内容分发请求并发度高的特点,为了减少TOP-CDNC处理的会话数量,避免T0P-CDNC成为整个CDN系统的性能瓶颈,在该图6所示的实施例中,采取去中心化方法处理来自UE的内容分发请求,即:先由缺省CDN处理内容分发请求,TOP-CDNC 只作为查询中心。 [0107] Concurrent distribution request based on the characteristics of high bulk CDN content the user, in order to reduce the number of treatment sessions TOP-CDNC avoid T0P-CDNC become a performance bottleneck of the entire system CDN, the embodiment illustrated in FIG. 6 take decentralized approach to content distribution request from the UE, namely: first by default CDN content distribution request processing, TOP-CDNC just as the ICC. 而不是直接由TOP-CDNC集中处理来自UE的内容分发请求,进一步大大提高了CDN系统的性能,节省在源CDN无法处理内容分发请求时的轮询时间,提高业务处理效率。 Rather than focusing on the processing contents from the UE directly from the TOP-CDNC distribution request, further CDN greatly improve the performance of the system, saving time in polling source CDN content distribution request can not be processed, improved business efficiency.

[0108] 作为一个具体的实施例,步骤405中,源CDN可以将该内容分发请求转发给目标CDN,具体地,可以将该内容分发请求重定向至目标CDN,也可以将该内容分发请求直接转发给目标CDN ;目标CDN处理该内容分发请求,根据该内容分发请求,向UE分发内容。 [0108] As a specific embodiment, in step 405, the distribution request source CDN may forward the content to the target CDN, in particular, may be redirected to the content distribution request certain CDN, the content distribution request may be directly CDN forwarded to the target; the target CDN content distribution request processing, based on the content distribution request, distribution of content to the UE.

[0109] 作为另一个具体的实施例,步骤405中,源⑶N可以根据目标⑶N信息,从目标⑶N 获取内容分发请求所请求分发的内容,并根据内容分发请求,向UE分发内容。 [0109] As another specific embodiment, in step 405, the target can be a source ⑶N ⑶N information, acquires content ⑶N requested distributed content distribution request from the target, and according to the content distribution request, distribution of content to the UE.

[0110] 进一步地,作为本发明的实施例,步骤204与步骤405中,源⑶N从目标⑶N获取内容分发请求所请求分发的内容之后,可以在该源CDN中缓存其获取的内容,并向TOP-CDNC 发送第一更新请求,请求T0P-CDNC更新分布其获取的内容的CDN信息。 After [0110] Further, as an embodiment of the present invention, step 204 and step 405, the source ⑶N ⑶N acquisition target content distribution request from the content distribution request, acquires the content can be cached in the CDN that source, and TOP-CDNC send a first update request, the request distribution T0P-CDNC update its information acquired CDN. 根据本发明的一个实施例,分布内容的CDN信息包括:存储该内容的CDN及其状态信息。 According to one embodiment of the present invention, CDN content distribution information comprises: storing the contents of a CDN with their status information. 同样,源CDN或目标CDN在向UE分发其请求的内容时,或者在向UE分发其请求的内容之后,还可以向TOP-CDNC 发送第二更新请求,请求TOP-CDNC更新源CDN或目标CDN的状态信息以便后续流程中, TOP-CDNC更精确的根据分布该内容的CDN及其状态信息,选择用于处理内容分发请求的目标CDN。 Similarly, the source or destination CDN CDN content distribution in its request to the UE, or after the content distribution request to the UE which, may also send a second update request to the TOP-CDNC, TOP-CDNC update request source or destination CDN CDN state information for subsequent processes, TOP-CDNC more accurate distribution in accordance with their status information to the CDN content, selecting a target CDN content distribution request for processing.

[0111] 作为本发明的一个实施例,可以采用与CDN划分一致的原则,来选择缺省CDN,以作为缺省处理某一UE发送的内容分发请求的源⑶N。 [0111] As one embodiment of the present invention, consistent with the principles of the divided CDN may be employed to select the default CDN, as a default processing source ⑶N content distribution request sent by the UE. 例如:⑶N通常是按照地域属性划分的,即把一些在地域上临近的、为相同一片区域用户服务的集群划分为一个⑶N。 For example: ⑶N usually divided according to geographical attributes, that some of the geographically adjacent, same cluster is divided into an area for a service user ⑶N. 这样,选择缺省⑶N时,具体可以根据用户信息,例如:用户的互联网协议(internet protocol,以下简称:IP)地址或注册信息,来确定其归属区域,从而确定在该归属区,域内的CDN或临近该CDN作为提供服务的缺省CDN。 Thus, when the default selected ⑶N, according to specific user information, for example: the CDN or address registration information to determine its home zone, the home zone is determined such that, within: the user's Internet Protocol (IP internet protocol, hereinafter referred to) or adjacent to the CDN CDN to provide services as a default. 具体确定缺省CDN时,可以对用户提供业务注册服务时的注册服务器来确定,也可以由对用户提供业务服务的应用系统,例如:IPTV AS、COD AS等。 Specifically determine the default CDN, may provide registration server business registration services to users is determined, the system can also be applied by the user to provide business services, such as: IPTV AS, COD AS and so on.

[0112] 图7为本发明源CDN选择方法一个实施例的流程图,如图7所示,该实施例包括以下步骤: [0112] FIG. 7 of the present invention CDN source selection method according to an embodiment of the flowchart shown in Figure 7, this embodiment comprises the steps of:

[0113] 步骤501,接收UE发送的请求消息,该请求消息中包括用户信息。 [0113] Step 501 receives a request message sent by UE, the request message includes user information.

[0114] 具体地,该请求消息可以是注册请求消息或业务请求消息,也可以是其它消息。 [0114] Specifically, the registration request message may be a request message or a service request message, other messages may be.

[0115] 步骤502,根据用户信息与地域属性之间的对应关系,确定与请求消息中用户信息对应的用户的地域属性。 [0115] Step 502, correspondence between the user information and geographical attribute determining region attributes corresponding to user information request message of the user.

[0116] 步骤503,从⑶N系统中选择一个与确定的用户的地域属性对应的⑶N,作为处理UEUE发送的内容分发请求的源⑶N。 [0116] Step 503, the attribute area corresponding to the determined ⑶N selected from ⑶N a system user as a content distribution request processing UEUE transmission source ⑶N.

[0117] 根据用户信息确定用户的地域属性,并据此选择一个与该地域属性对应的CDN,作为处理UE发送的内容分发请求的源⑶N,这样可以实现内容分发请求的就近处理,进一步节省在源CDN无法处理内容分发请求时的轮询时间,提高业务处理效率。 [0117] The user attribute information to determine the user's area, and accordingly select a region corresponding to the attribute the CDN, the content processing UE sends a distribution request source ⑶N, so that the nearest content distribution request processing can be achieved, further savings in CDN source can not be processed when the polling time content distribution request, to improve business efficiency.

[0118] 图8为本发明目标CDN选择方法一个实施例的流程图。 [0118] FIG 8 is a flowchart of an embodiment of the inventive method to select a target CDN. 如图8所示,该实施例的目标⑶N选择方法包括以下步骤: As shown, the target ⑶N selection method comprises the steps of Example 8:

[0119] 步骤601,接收源⑶N发送的查询请求,该查询请求中包括UE请求分发的内容信肩、ο [0119] Step 601, the source receives a query request ⑶N sent the query request includes a content distribution channel requested by the UE shoulder, o

[0120] 步骤602,根据分布UE请求分发的内容的CDN信息,选择向UE分发该内容的目标CDN。 CDN information [0120] Step 602, requesting the content distribution according to the distribution of the UE, to distribute the selected content to the UE target CDN.

[0121] 步骤603,向源⑶N发送选择的目标⑶N信息。 [0121] Step 603, the selected transmission target to the source ⑶N ⑶N information.

[0122] 图9为本发明目标CDN选择方法另一个实施例的流程图。 [0122] FIG. 9 is a flowchart of another embodiment of the inventive method to select a target CDN. 如图9所示,该实施例的目标CDN选择方法包括以下步骤: As shown, the CDN target selection method comprises the steps of Example 9:

[0123] 步骤701,接收源⑶N发送的查询请求,该查询请求中包括UE请求分发的内容信肩、ο [0123] Step 701, the source receives a query request ⑶N sent the query request includes a content distribution channel requested by the UE shoulder, o

[0124] 步骤702,向源⑶N发送分布UE请求分发的内容的目标⑶N信息,以便源⑶N根据该信息选择向UE分发内容的目标CDN。 [0124] Step 702, UE transmits the distribution request to the content distribution source ⑶N a target ⑶N information, so that the source ⑶N CDN to distribute the content selection target UE according to the information.

[0125] 在本发明图8与图9所示的实施例中,分布内容的目标CDN信息可以包括:存储内容的CDN及其状态信息。 CDN target information [0125] In the embodiment illustrated in FIG. 9 and FIG. 8 according to the present invention, the distribution of content may include: CDN content stored with their status information. 具体地,存储内容的CDN信息包括:各内容与存储该内容的CDN信息或者各CDN与其存储的内容信息之间的对应关系信息;CDN的状态信息包括该CDN的负载与健康状态信息。 Specifically, the CDN information stored content comprising: a correspondence relationship between the information of the CDN content or content information stored in each of its CDN information of each content stored; CDN state information includes load information of the state of health of the CDN. 其中,源CDN接收到内容分发请求后,由于其中的CDF向UE分发其请求的内容,导致CDF的会话请求增加,增加了该CDF所在集群的负载,从而增加了该CDN的负载。 Wherein, after receiving the source CDN content distribution request, wherein the CDF since it requests distribution of the content to the UE, resulting in CDF session request increases, the load of the cluster where the CDF, thereby increasing the load of the CDN. 健康状态标识该⑶N是否能够正常工作,当一个⑶N的负载达到上限时,就不能再处理新的内容分发请求,健康状态可能变化为CDF异常。 Whether health status to identify the ⑶N to work properly, a ⑶N when the load reaches the upper limit, you can not process new content distribution request, health status may change CDF exception. 根据分布内容的CDN信息来选择一个可以向UE分发其请求分发内容的目标CDN,可以避免源CDN无法处理该内容分发请求时对其进行多级转发甚至循环转发,有效节省了处理用户内容分发请求的时间,可以及时向用户返回响应消息,从而提高了CDN的服务质量。 To select a target CDN can distribute its request to distribute content to UE, to avoid CDN source can not process the contents of its multi-level forwards the request even when the distribution cycle forward, effectively saving processing based on user content distribution CDN content distribution request information time, timely response message returned to the user, thus improving the quality of service CDN.

[0126] 另外,作为本发明的一个具体实施例,在图8与图9所示的实施例中,还可以包括: 接收源CDN发送的第一更新请求,该第一更新请求由源CDN在缓存内容后发送,用于请求更新分布某一内容的CDN信息;根据该第一更新请求更新存储该内容的CDN信息。 [0126] Further, as a specific embodiment of the present invention, in the embodiment shown in FIG. 9 and FIG. 8, may further comprise: a source receiving a first update request sent by the CDN, the CDN first update request by the source in the after the content transmission buffer, a request to update the contents of a CDN message distribution; request to update the stored information according to the content of the first update CDN.

[0127] 进一步地,作为本发明的一个具体实施例,在图8与图9所示的实施例中,还可以包括:接收源⑶N或目标⑶N发送的第二更新请求,第二更新请求由源⑶N或目标⑶N在向UE分发内容时或者在向UE分发内容之后发送,用于请求更新源CDN或目标CDN的状态信息;根据第二更新请求更新源CDN或目标CDN的状态信息。 [0127] Further, as a specific embodiment of the present invention, in the embodiment shown in FIGS. 8 and 9, may further comprise: receiving a second source or target ⑶N ⑶N update request sent by the second update request the source or destination ⑶N ⑶N or when the UE transmits the distribution content to distribute the content after the UE for requesting to update the state information source or destination CDN of the CDN; status update request information source or destination CDN CDN according to the second update.

[0128] 另外,作为本发明的另一个具体实施例,在图8与图9所示的实施例中,步骤601 或步骤701接收源CDN发送的查询请求之前,还可以包括:生成分布UE请求分发的内容的⑶N信息。 Before [0128] Further, as another embodiment of the present invention, in the embodiment shown in FIG. 8 and FIG. 9, step 601 or step 701, the source receives a query request sent by the CDN, may further comprise: generating a distribution request UE ⑶N information content distribution. 具体地,可以通过如下方式生成分布UE请求分发的内容的⑶N信息:接收⑶N上报的CDN存储的内容信息与CDN的状态信息,该CDN存储的内容信息与CDN的状态信息基于CDN内CC上报的内容信息与状态信息生成,该内容信息与状态信息为CC分别收集的该CC所在集群中CDF存储的内容信息与状态信息;根据CDN系统中各CDN存储的该内容信息与CDN的状态信息,生成分布该内容的CDN信息。 In particular, it is possible to generate distribution UE by way of requesting the content distribution of ⑶N information: receiving CDN stored ⑶N reporting state information of the content information with the CDN, state information, the content information of the CDN stored with the CDN-based CDN within CC reported contents information and status information generation, the content cluster that CC where the contents information and status information to the CC were collected CDF information stored status information; information according to the state of the contents information CDN system each CDN stored with the CDN generate CDN distribution of the content information.

[0129] 图10为本发明生成分布内容的CDN信息一个实施例的流程图。 [0129] FIG. 10 is a flowchart of an embodiment of distributed content information generation CDN invention. 如图10所示,该实施例包括以下步骤: 10, this embodiment comprises the steps of:

[0130] 步骤801,在各CDN中,各CC分别收集所在集群中CDF存储的内容信息与状态信息,并上报给所在⑶N中的⑶NC。 [0130] Step 801, in the CDN, the content information of each CC were collected status information stored in the CDF in the cluster is located, and reports to the host in ⑶N ⑶NC.

[0131] CDNC接收到该CDF存储的内容信息与状态信息后,可以向CC返回8000K响应消 After [0131] CDNC content information is received status information stored in the CDF, 8000K response message may be returned to the CC

肩、ο Shoulder, ο

[0132] 当某一个内容由于受欢迎程度高或者受AS的控制被分发到集群内时,在该集群内便可获得该内容,当某一个内容由于受欢迎程度下降或者受AS的控制从被集群的存储空间删除时,在集群内便无法再获得其内容。 [0132] When a certain content, or due to the high popularity of the AS when receiving the control is distributed to the cluster, the cluster can be obtained in the content, when the content of a certain degree of popularity due to the decrease or be controlled from the AS when deleting a cluster of storage space in the cluster can no longer get its contents. 可以以内容的可获得状态表示一个CDF存储的内容信息的变化。 It may represent a change in the content of information stored CDF to obtain the status of the content.

[0133] 步骤802,⑶NC根据各CC上报的内容信息与状态信息,生成所在⑶N存储的内容信息与该⑶N的状态信息,并上报给TOP-⑶NC。 [0133] Step 802, ⑶NC content information according to the state information reported by each CC, the content information generating ⑶N where the state information stored ⑶N and reported to the TOP-⑶NC.

[0134] CDNC接收到CDF存储的内容信息与状态信息后,对其进行分析,对于CDN存储的内容信息,只是反映该内容在整个CDN内是否处于可获得的状态,而不用关注其在CDN内的具体分布情况。 After the [0134] CDNC content information is received and stored in the CDF status information, it analyzes it, for CDN content information stored, merely reflects the content of the entire CDN is in the available state, without concern within the CDN the specific distribution.

[0135] 作为本发明的具体实施例,⑶NC可以按照预设周期,周期性的向TOP-⑶NC上报CDN存储的内容信息与状态信息,也可以仅在CDN存储的内容信息与状态信息之一与上次接收到的相应信息相比发生变化时向TOP-⑶NC上报。 [0135] As a specific embodiment of the present invention, ⑶NC can follow a preset period, periodically reporting status information CDN content information stored in the TOP-⑶NC, may be in only one state information and content information stored CDN appropriate information reported to the previously received TOP-⑶NC changes when compared.

[0136] TOP-⑶NC收到该⑶NC上报的⑶N存储的内容信息与状态信息后,可以向⑶NC返回8000K响应消息。 After [0136] TOP-⑶NC receive the content information of the state information reported by ⑶NC ⑶N stored 8000K response message may be returned to the ⑶NC.

[0137] 步骤803,Τ0Ρ-⑶NC根据各⑶N中存储的内容信息与状态信息,生成分布各内容的CDN信息。 [0137] Step 803, Τ0Ρ-⑶NC ⑶N according to the content of each information stored in the status information generating CDN distribution of information content.

[0138] TOP-⑶NC生成分布各内容的⑶N信息后,可以存储该分布各内容的⑶N信息,以便后续根据该分布各内容的CDN信息,选择处理UE发送的内容分发请求的目标CDN。 After [0138] TOP-⑶NC information generating ⑶N distribution of content may be stored ⑶N distribution of information content for subsequent CDN information of each content according to the profile, select the processing target CDN content distribution request sent by the UE.

[0139] 图11为本发明内容分发装置一个实施例的结构示意图,该实施例的内容分发装置可作为源CDN,实现如本发明图2、图4、图5与图6所示实施例的流程。 [0139] FIG 11 a schematic structural diagram of the content distribution apparatus of the present embodiment of the invention, the content delivery apparatus of this embodiment can be used as source of the CDN, such as to achieve the present invention, FIG. 2, FIG. 4, 5 and 6 the embodiment shown in FIG. Process. 如图11所示,该实施例的内容分发处理装置包括第一接收模块901、第一发送模块902与请求处理模块903。 11, this embodiment of the content distribution processing apparatus includes a first receiving module 901, a first transmitting module 902 and the request processing module 903. 其中,第一接收模块901用于接收UJE发送的内容分发请求,该内容分发请求中包括请求分发的内容信息,以及接收TOP-⑶NC返回的目标⑶N相关信息。 Wherein the first receiving module 901 receives a content distribution request transmitted UJE, the content distribution request includes content information in the distribution request, and receive information about the target ⑶N TOP-⑶NC returned. 第一发送模块902用于向TOP-CDNC发送查询请求,该查询请求中包括UE请求分发的内容信息。 A first transmitting module 902 configured to send a query request to the TOP-CDNC, the query request includes a content distribution request information of the UE. 另外,作为可选实施例,第一发送模块902可以仅仅在内容分发装置无法处理第一接收模块901接收到的内容分发请求时,向TOP-⑶NC发送查询请求。 Further, as an alternative embodiment, the first transmitting module 902 may simply not process the content received by the first receiving module 901 of the content distribution apparatus when the distribution request, sends a query to TOP-⑶NC. 请求处理模块903用于根据第一接收模块901接收到的目标CDN相关信息,请求目标CDN处理内容分发请求,向UE分发其请求的内容。 Request processing module 903 for target-related information received CDN according to a first receiving module 901, the processing request destination CDN content distribution request, distribution of the content it requests the UE. 其中的目标⑶N相关信息可以是目标⑶N信息,例如:目标⑶N的IP地址信息、MAC地址信息、 路由信息等所有可以定位目标CDN的信息,也可是分布UE请求分发的内容的CDN信息。 Wherein the target information may be a target ⑶N ⑶N information, for example: IP address information of the target ⑶N, MAC address information, routing information, information of the target may be positioned all the CDN, but also the distribution of the UE requesting the content distribution information CDN. 目标CDN信息是分布UE请求分发的内容的CDN信息时,第一接收模块901具体接收UE发送的内容分发请求,该内容分发请求中包括UE请求分发的内容信息,以及接收TOP-CDNC返回的分布请求分发的内容的CDN信息,并根据分布该内容的CDN信息,选择用于处理内容分发请求的目标⑶N。 CDN information distribution target UE requests the CDN content distribution information, the content receiving UE 901 transmits the specific first distribution request receiving module, which includes a UE requesting the content distribution information content, and receives the returned distribution TOP-CDNC distribution request CDN content distribution request information, and based on the CDN content distribution information, and selecting a target ⑶N content distribution request for processing.

[0140] 图12为本发明内容分发装置另一个实施例的结构示意图,该实施例中,目标CDN 相关信息是目标CDN信息。 Structural schematic view of another embodiment of a content [0140] FIG dispensing device 12 of the present invention, in this embodiment, the target information is the target CDN CDN information. 与图11所示的实施例相比,该实施例中,请求处理模块903包括转发单元9031,用于根据第一接收模块901接收到的目标CDN信息,将内容分发请求转发给该目标CDN,以便于目标CDN为向UE分发相应的内容。 Compared to the embodiment shown in FIG. 11, in this embodiment, the request processing module 903 includes a forwarding unit 9031, a target CDN information received according to a first receiving module 901, a content distribution request is forwarded to the target CDN, in order to distribute the content to the UE corresponding to the target CDN.

[0141] 图13为本发明内容分发装置又一个实施例的结构示意图,该实施例中,目标CDN 相关信息是目标CDN信息。 [0141] FIG. 13 the content distribution apparatus and a schematic structural diagram of the embodiment of the present invention. In this embodiment, the target information is the target CDN CDN information. 与图11所示的实施例相比,该实施例中,请求处理模块903包括获取单元9032与分发单元9033。 Compared to the embodiment shown in FIG. 11, in this embodiment, the request processing module 903 includes an acquisition unit 9032 and the distribution unit 9033. 其中,获取单元9032用于根据第一接收模块901接收到的目标CDN信息,从目标CDN获取UE请求分发的内容。 Wherein the target CDN information obtaining unit 9032 configured to receive a first receiving module 901, the UE acquires the content distribution request from the destination CDN. 分发单元9033用于根据内容分发请求,向UE分发获取单元9032获取到的内容。 The distribution unit 9033 for content distribution request, the distribution acquisition unit 9032 acquires content to the UE.

[0142] 再参见图13,作为本发明内容分发装置另一个可选实施例,请求处理模块903中还可以包括缓存单元9034,用于缓存获取单元9032获取的内容,以便于后续接收到内容分发请求时,可以直接向UE分发该内容,而不需要重新从目标CDN获取该内容,可以进一步节省处理内容分发请求的时间。 [0142] Referring again to FIG. 13, the content distribution apparatus as another alternative embodiment of the present invention, the request processing module 903 may further include a buffer unit 9034, a content acquisition unit 9032 acquires the buffer in order to receive subsequent to the content distribution when requested, the content can be distributed directly to the UE, without the need to re-obtain the content from the CDN target can be further processed to save time content distribution request.

[0143] 另外,在本发明图13所示实施例的内容分发装置中,第一发送模块902还可用于在缓存单元9034缓存获取模块9032获取的内容之后,向TOP-CDNC发送第一更新请求,该第一更新请求用于请求T0P-CDNC更新分布获取模块9032获取的内容的CDN信息。 After [0143] Further, in the present invention, the content distribution apparatus of FIG. 13 in the embodiment shown, a first transmitting module 902 may also be configured to acquire the content acquisition module 9032 of the cache buffer unit 9034, transmitting a first update request to the TOP-CDNC the first update request for requesting update T0P-CDNC CDN module 9032 acquires content distribution information acquired.

[0144] 具体地,分布获取模块9032获取的内容的⑶N信息包括:存储该内容的⑶N及其状态信息。 ⑶N information [0144] Specifically, the content acquisition module 9032 acquires the distribution comprises: storing the contents ⑶N and status information. 相应的,第一发送模块902还用于在分发单元9033向UE分发该内容时或者在向UE分发该内容之后,向TOP-⑶NC发送第二更新请求,该第二更新请求用于请求TOP-⑶NC 更新源⑶N的状态信息。 Accordingly, a first transmitting module 902 is further configured to, when the distribution of the content distribution unit 9033 to the UE or after distributing the content to the UE, sending a second update request to the TOP-⑶NC, the second update request for requesting TOP- ⑶NC source ⑶N update status information.

[0145] 图14为本发明源CDN选择装置一个实施例的结构示意图,该实施例的源CDN选择装置可用于实现如本发明图7所示实施例的流程。 [0145] FIG 14 a schematic view of the structure of the present invention, a source CDN embodiment of device selection, source selection CDN apparatus of this embodiment may be used to implement the processes shown in FIG. 7 embodiment of the present invention. 如图1414所示,该实施例的源CDN选择装置包括第二接收模块1001、确定模块1002与第一选择模块1003。 FIG 1414, the source CDN selecting apparatus of this embodiment includes a second receiving module 1001, a first determining module 1002 and selection module 1003. 其中,第二接收模块1001用于接收UE发送的请求消息,该请求消息中包括用户信息。 Wherein the second receiving module 1001 for receiving a request message sent by the UE, the request message includes user information. 确定模块1002用于根据该用户信息确定用户的地域属性。 Determining module 1002 for determining a user according to the user attribute information area. 第一选择模块1003用于根据该用户的地域属性,从CDN 系统中选择一个与该用户的地域属性对应的CDN,作为处理该UE发送的内容分发请求的源CDN。 The first source selection module 1003 for CDN according to the user's local area attribute, select a user corresponding to the region attribute from the CDN CDN system, the processing as the content distribution request sent by the UE's.

[0146] 具体地,图14所示实施例的源⑶N选择装置可以是对用户提供业务注册服务时的注册服务器,也可以是对用户提供业务服务的应用系统,或者其它的通信设备。 Source selection means ⑶N embodiment [0146] Specifically, as shown in FIG. 14 may be a server registered users of the service registration services may be provided by the user business applications and services, or other communication device. [0147] 图15为本发明目标CDN选择装置一个实施例的结构示意图,该实施例的目标CDN 选择装置可作为T0P-CDNC,实现如本发明图8所示实施例的流程。 Target [0147] FIG. 15 of the present invention, a selection means CDN schematic structural diagram of the embodiment, the target CDN selecting apparatus of this embodiment can be used as T0P-CDNC, implement the processes of the present invention in FIG. 8 embodiment. 如图15所示,该实施例的目标⑶N选择装置包括第三接收模块1101、存储模块1102、获取模块1103、第二选择模块1104与第二发送模块1105。 As shown in FIG 15, the target ⑶N selecting apparatus of this embodiment includes a third receiving module 1101, storage module 1102, an obtaining module 1103, a second selection module 1104 and a second sending module 1105. 其中,第三接收模块1101用于接收源⑶N发送的查询请求,该查询请求中包括UE请求分发的内容信息。 Wherein the third receiving module 1101 for receiving a query request source ⑶N sent the query request includes a content distribution request information of the UE. 存储模块1102用于存储分布各内容的CDN信息。 CDN information storage module 1102 for storing the distribution of content. 获取模块1103用于从存储模块1102中分布获取UE请求分发的内容的CDN信息。 CDN information obtaining module 1103 for obtaining UE distribution request from the storage module 1102 of the content distribution. 第二选择模块1104用于根据获取模块1103获取到的CDN信息,选择向UE分发内容的目标CDN。 Second selection module 1104 to 1103 according to the acquired information acquisition module CDN, the CDN distributing content selection target UE. 第二发送模块1105用于向源⑶N发送第二选择模块1104选择的目标⑶N信息。 A second transmitting module 1105 for transmitting a second selection module 1104 to select the target information to the source ⑶N ⑶N.

[0148] 图16为本发明目标CDN选择装置另一个实施例的结构示意图,该实施例的目标CDN选择装置也可用于实现如本发明图8所示实施例的流程。 [0148] FIG 16 a schematic structural diagram of another embodiment of the present invention, the target device selection CDN, CDN selecting the target apparatus of this embodiment may also be used to implement the processes of the present invention, FIG. 8 embodiment. 与图15所示的实施例相比, 该实施例中的分布内容的目标CDN信息包括存储内容的CDN及其状态信息。 Compared with the embodiment illustrated in FIG. 15, the target CDN content distribution information in the embodiment of the embodiment includes a storage CDN content with their status information. 相应的,第三接收模块1101还用于接收源CDN发送的第一更新请求,该第一更新请求用于请求更新分布源CDN缓存的内容的CDN信息,以及接收源CDN或目标CDN发送的第二更新请求,该第二更新请求用于请求更新源CDN或目标CDN的状态信息。 CDN information corresponding to the first, a third receiving module 1101 is further configured to receive a source of a first update request sent CDN, the first update request for requesting the content distribution source to update CDN caches and to receive a source or destination CDN CDN transmitted two update request, the update request for requesting the second status update information source or destination CDN of the CDN. 该实施例的目标CDN选择装置还包括更新模块1106,用于根据第三接收模块1101接收到的第一更新请求,更新存储模块1102中存储相应内容的CDN信息,以及根据第三接收模块1101接收到的第二更新请求更新存储模块1102中存储的源⑶N或目标⑶N的状态信息。 CDN selecting the target apparatus of this embodiment further includes a first update request update module 1106, configured to receive the third receiving module 1101, updates the stored contents of the respective memory module 1102 CDN information, and receiving a third receiving module 1101 second update request to update the storage module 1102 is stored in the source or target ⑶N ⑶N status information.

[0149] 再参见图16,本发明实施例的目标⑶N选择装置中,第三接收模块1101还用于接收CDN上报的、该CDN存储的内容信息与该CDN的状态信息,其中,该CDN存储的内容信息与该CDN的状态信息基于CDN内CC上报的内容信息与状态信息生成,该内容信息与状态信息为CC分别收集的该CC所在集群中CDF存储的内容信息与状态信息。 [0149] Referring again to Figure 16, certain embodiments ⑶N selection device according to the invention, a third receiving module 1101 for receiving further reported CDN, the CDN content information stored in the state information of the CDN, wherein the storage CDN CDN content information with the status information generated based on the content within the CDN CC state information reported by the content stored in the cluster to which the CDF CC where the contents information is the status information CC are collected status information. 相应的,该实施例的目标⑶N选择装置还包括生成模块1107,用于根据第三接收模块1101接收到的⑶N系统中各CDN存储的内容信息与CDN的状态信息,生成分布内容的CDN信息,并存储在存储模块1102 中。 Accordingly, the target ⑶N selecting apparatus of this embodiment further comprises a generating module 1107, a state information received content information according to the third receiving module 1101 ⑶N system each CDN and stored in the CDN, content distribution information generating CDN, and stored in the storage module 1102.

[0150] 图17为本发明目标CDN选择装置又一个实施例的结构示意图,该实施例的目标⑶N选择装置可该实施例的目标⑶N选择装置可作为TOP-⑶NC,实现如本发明图9所示实施例的流程。 Target selecting means ⑶N a schematic structural diagram of another embodiment of the CDN target selection means [0150] 17 of the present invention, the target ⑶N selecting apparatus of this embodiment may be used as the embodiment TOP-⑶NC, the present invention is achieved as in FIG. 9 illustrating the procedure of Example. 如图17所示,该实施例的目标CDN选择装置包括第三接收模块1101、存储模块1102、获取模块1103与第三发送模块1108。 As shown in FIG 17, the target CDN selecting apparatus of this embodiment includes a third receiving module 1101, storage module 1102, an obtaining module 1103 and a third sending module 1108. 其中,第三接收模块1101用于接收源⑶N 发送的查询请求,该查询请求中包括UE请求分发的内容信息。 Wherein the third receiving module 1101 for receiving a query request source ⑶N sent the query request includes a content distribution request information of the UE. 存储模块1102用于存储分布各内容的CDN信息。 CDN information storage module 1102 for storing the distribution of content. 获取模块1103用于从存储模块1102中分布获取UE请求分发的内容的⑶N信息。 ⑶N information obtaining module 1103 for obtaining UE distribution request from the storage module 1102 of the content distribution. 第三发送模块1108用于向源⑶N发送获取模块1103获取的、分布内容的目标⑶N信息,以便源⑶N选择向UE分发内容的目标⑶N。 A third sending module 1108 is configured to send to the source ⑶N acquisition module 1103 acquires the target information ⑶N content distribution, so that the source selection target ⑶N ⑶N distributing content to the UE.

[0151] 图18为本发明目标CDN选择装置再一个实施例的结构示意图,该实施例的目标CDN选择装置也可用于实现如本发明图9所示实施例的流程。 A schematic structural diagram of another embodiment of the CDN target selection means [0151] 18 of the present invention, the target CDN selecting apparatus of this embodiment may also be used to implement the present invention in FIG. 9 as shown in Scheme embodiment. 与图17所示的实施例相比, 该实施例中的分布内容的目标CDN信息包括存储内容的CDN及其状态信息。 Compared to the embodiment shown in Figure 17, the target CDN content distribution information in the embodiment of the embodiment includes a storage CDN content with their status information. 相应的,第三接收模块1101还用于接收源CDN发送的第一更新请求,该第一更新请求用于请求更新分布源CDN缓存的内容的CDN信息,以及接收源CDN或目标CDN发送的第二更新请求,该第二更新请求用于请求更新源CDN或目标CDN的状态信息。 CDN information corresponding to the first, a third receiving module 1101 is further configured to receive a source of a first update request sent CDN, the first update request for requesting the content distribution source to update CDN caches and to receive a source or destination CDN CDN transmitted two update request, the update request for requesting the second status update information source or destination CDN of the CDN. 该实施例的目标CDN选择装置还包括更新模块1106,用于根据第三接收模块1101接收到的第一更新请求,更新存储模块1102中存储相应内容的CDN信息,以及根据第三接收模块1101接收到的第二更新请求更新存储模块1102中存储的源⑶N或目标⑶N的状态信息。 CDN selecting the target apparatus of this embodiment further includes a first update request update module 1106, configured to receive the third receiving module 1101, updates the stored contents of the respective memory module 1102 CDN information, and receiving a third receiving module 1101 second update request to update the storage module 1102 is stored in the source or target ⑶N ⑶N status information.

[0152] 再参见图17,本发明实施例的目标⑶N选择装置中,第三接收模块1101还用于接收CDN上报的、该CDN存储的内容信息与该CDN的状态信息,其中,该CDN存储的内容信息与该CDN的状态信息基于CDN内CC上报的内容信息与状态信息生成,该内容信息与状态信息为CC分别收集的该CC所在集群中CDF存储的内容信息与状态信息。 [0152] Referring again to Figure 17, the target device selection ⑶N embodiment of the present invention, a third receiving module 1101 for receiving further reported CDN, the CDN content information stored in the state information of the CDN, wherein the storage CDN CDN content information with the status information generated based on the content within the CDN CC state information reported by the content stored in the cluster to which the CDF CC where the contents information is the status information CC are collected status information. 相应的,该实施例的目标⑶N选择装置还包括生成模块1107,用于根据第三接收模块1101接收到的⑶N系统中各CDN存储的内容信息与CDN的状态信息,生成分布内容的CDN信息,并存储在存储模块1102 中。 Accordingly, the target ⑶N selecting apparatus of this embodiment further comprises a generating module 1107, a state information received content information according to the third receiving module 1101 ⑶N system each CDN and stored in the CDN, content distribution information generating CDN, and stored in the storage module 1102.

[0153] 本发明实施例提供的一种内容分发网络系统,可用于实现如本发明图2、图4与图8所示实施例的流程。 [0153] A content distribution network system according to an embodiment of the present invention, may be used to implement the processes of the present invention, FIG. 2, FIG. 4 and FIG. 8 embodiment. 其包括一个TOP-⑶NC与多个⑶N,具体的网络结构示意图可以参见3。 TOP-⑶NC comprising a plurality ⑶N, the specific structure of the network can see a schematic 3. 其中,多个⑶N中有一个作为处理UE发送的内容分发请求的缺省⑶N,也即源⑶N。 Wherein the plurality of default ⑶N ⑶N has a content processing as distribution request sent by the UE, i.e. the source ⑶N. 源CDN用于接收UE发送的内容分发请求,该内容分发请求中包括请求分发的内容信息;向TOP-⑶NC发送查询请求,该内容分发请求中包括请求分发的内容信息;以及接收TOP-⑶NC 返回的目标⑶N信息;根据目标⑶N信息,请求目标⑶N处理内容分发请求。 CDN content source for receiving a distribution request sent by the UE, the content distribution request includes content information distribution request; Send request to TOP-⑶NC, the content distribution request includes content distribution request information; and receiving return TOP-⑶NC ⑶N target information; ⑶N the target information, the processing request destination ⑶N content distribution request. TOP-⑶NC用于存储分布各内容的CDN信息;接收源CDN发送的查询请求,获取分布内容的CDN信息;根据该分布内容的CDN信息选择向UE分发内容的目标CDN,并向源CDN发送目标CDN信息。 TOP-⑶NC CDN for the distribution of the content information storage; CDN receiving query request sent by the source, the content distribution information acquiring CDN; CDN to distribute the content selection target UE according to the CDN content distribution information, the source and destination CDN CDN information. 作为本发明的另一个实施例,源CDN可以仅在在无法处理该内容分发请求时,向TOP-CDNC发送查询请求。 As another embodiment of the present invention, when the source CDN can not process the content distribution request, only sending a query request to the TOP-CDNC. 具体地,该实施例的⑶N系统中,源⑶N可以通过图11、图12与图13所示实施例的内容分发装置实现,TOP-⑶NC可以通过图15或图16所示实施例的目标⑶N选择装置实现。 Specifically, ⑶N system of this embodiment, the source can ⑶N 11, as shown in FIG. 12 and FIG. 13 embodiment the content distribution apparatus implemented, TOP-⑶NC ⑶N certain embodiments may be illustrated by embodiment 16 of FIG. 15 or FIG. selecting means implemented.

[0154] 本发明实施例提供的另一种内容分发网络系统,可用于实现如本发明图2、图6与图8所述实施例的流程。 [0154] Another embodiment provides a content distribution network system of the embodiment of the present invention, may be used to implement the processes of the present invention, FIG. 2, FIG. 6 of the embodiment of FIG. 8. 其包括一个TOP-CDNC与多个CDN,具体的网络结构示意图可以参见3。 TOP-CDNC which includes a plurality of CDN, the specific structure of the network can see a schematic 3. 其中。 among them. 多个⑶N中有一个作为处理UE发送的内容分发请求的缺省⑶N,也即源⑶N。 ⑶N plurality ⑶N have a default UE sends a content distribution request processing, i.e. source ⑶N. 源CDN用于接收UE发送的内容分发请求,该内容分发请求中包括UE请求分发的内容信息;向TOP-CDNC发送查询请求,该内容分发请求中包括UE请求分发的内容信息;以及接收TOP-CDNC返回的分布内容的CDN信息;根据该分布内容的CDN信息,选择用于处理UE发送的内容分发请求的目标CDN ;并根据该目标CDN信息,请求目标CDN处理内容分发请求。 CDN source for receiving content distribution request sent by the UE, the UE requests the content comprises content distribution request information distribution; Send request to TOP-CDNC, the content distribution request includes content information of the UE distribution request; and receiving TOP- CDN content distribution information returned CDNC; CDN according to the information of the distributed content, the processing for selecting target CDN content distribution request sent by a UE; CDN according to the target information, the processing request destination CDN content distribution request. TOP-⑶NC用于存储分布各内容的⑶N信息;接收源⑶N发送的查询请求,获取分布UE请求分发的内容的CDN信息;并向该源CDN发送该分布UE请求分发的内容的CDN信息。 TOP-⑶NC ⑶N for storing the distribution of the content information; ⑶N receiving query request sent by the source, obtaining the distribution of the UE requests the CDN content distribution information; CDN transmitted to the source distribution of the UE requests the CDN content distribution. 作为本发明的另一个实施例,源⑶N可以仅在在无法处理该内容分发请求时,向TOP-⑶NC发送查询请求。 As another embodiment of the present invention, when the source ⑶N can not process the content distribution request, only sending a query request to the TOP-⑶NC. 具体地,该实施例的CDN系统中,源CDN可以通过图11所示实施例的内容分发装置实现,TOP-⑶NC可以通过图15或图16所示实施例的目标⑶N选择装置实现。 Specifically, the CDN system of this embodiment, the source can CDN content distribution apparatus implemented by the embodiment shown in FIG. 11, TOP-⑶NC ⑶N can select the target device implementing embodiments shown in FIG. 15 or FIG. 16.

[0155] 本领域普通技术人员可以理解:实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成,前述的程序可以存储于一计算机可读取存储介质中,该程序在执行时,执行包括上述方法实施例的步骤;而前述的存储介质包括:R0M、RAM、磁碟或者光盘等各种可以存储程序代码的介质。 [0155] Those of ordinary skill in the art will be understood: the hardware implementing the above method can be accomplished by a program instructing relevant to all or part of the steps embodiment, the program may be stored in a computer readable storage medium, the program execution when, comprising the step of performing the above-described embodiment of the method; and the storage medium comprising: a variety of medium may store program codes R0M, RAM, magnetic disk, or optical disk.

[0156] 本发明实施例可以从TOP-⑶NC查询分布该内容的目标⑶N信息,根据该目标⑶N 信息,直接选择一个处理该内容分发请求的目标CDN,并请求该目标CDN处理该内容分发请求避免了无法处理该内容分发请求时对其进行多级转发甚至循环转发,有效节省了处理用户内容分发请求的时间,可以及时向用户返回响应消息,从而提高了CDN的服务质量。 Target ⑶N information [0156] embodiments of the invention may query the distribution of the content from the TOP-⑶NC, based on the target ⑶N information directly selects a processing target CDN content distribution request, and requests the target CDN process the content distribution request to avoid We can not process the content of the multi-level forwards the request even when the distribution cycle forward, effectively saving time to process user requests content distribution, timely return a response message to the user, thus improving the quality of service CDN.

[0157] 另外,本发明实施例采取去中心化方法处理来自UE的内容分发请求,即:先由作为缺省⑶N的源⑶N处理内容分发请求,TOP-⑶NC只作为查询中心,而不是直接由T0P-CDNCC集中处理来自UE的内容分发请求,从而大大提高了CDN系统的性能,进一步节省了在源CDN无法处理内容分发请求时的轮询时间,提高业务处理效率。 [0157] Further, embodiments taken to the center of the content distribution method for processing a request from a UE according to the present invention, namely: first source of content distribution request processing ⑶N ⑶N as a default, TOP-⑶NC only as ICC, rather than directly by the T0P-CDNCC focus on content distribution request from the UE, thereby greatly improving the performance of the CDN system, further saving time in polling source CDN content distribution request can not be processed, improved business efficiency.

[0158] 最后所应说明的是:以上实施例仅用以说明本发明的技术方案,而非对本发明作限制性理解。 [0158] Finally, it should be noted that: the above embodiments are intended to illustrate the present invention and not for limiting understanding of the invention. 尽管参照上述较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解:其依然可以对本发明的技术方案进行修改或者等同替换,而这种修改或者等同替换并不脱离本发明技术方案的精神和范围。 While the invention has been described in detail above with reference to preferred embodiments, those of ordinary skill in the art should be understood: that they may still be modified aspect of the present invention, or equivalent replacements, and such modifications or equivalent replacements without departing from the techniques of this invention the spirit and scope of the program.

Claims (26)

1. 一种内容分发方法,其特征在于,包括:内容分发网络CDN系统中的源CDN接收内容分发请求,该内容分发请求中包括请求分发的内容信息;所述源CDN向顶级内容分发网络控制单元TOP-CDNC发送查询请求,该查询请求中包括所述请求分发的内容信息;所述源CDN接收所述TOP-CDNC返回的目标CDN信息,所述目标CDN由所述TOP-CDNC 根据分布所述内容的CDN信息选择;或者,所述源CDN接收所述TOP-CDNC返回的分布所述内容的CDN信息,所述源CDN根据分布所述内容的CDN信息,选择用于处理所述内容分发请求的目标CDN;所述源CDN根据所述目标CDN信息,从所述目标CDN获取所述内容,并根据所述内容分发请求,向用户终端分发所述内容;从所述目标CDN获取所述内容之后,还包括:在所述源CDN中缓存所述内容,并向所述TOP-CDNC发送第一更新请求,所述第一更新请求用于请求所述TOP-CDNC更 1. A content distribution method, comprising: receiving source content Content Distribution Network CDN and CDN distribution request, the content distribution request includes content information distribution request; said source CDN content distribution network control to the top TOP-CDNC unit transmits a query request, the query request comprises a request to the content distribution information; receiving the target of the source CDN CDN TOP-CDNC information returned by the CDN of the target based on the distribution of the TOP-CDNC CDN information selecting said content; or, the source receiving the CDN CDN distribution of the content information returned by the TOP-CDNC, according to the CDN CDN information distribution source of the content, for distributing the content selecting process target CDN request; said source CDN CDN according to the target information acquired from the CDN content of the target, and according to the content distribution request, distributing the content to the user terminal; obtaining the target from the CDN after the contents, further comprising: buffering the content in the source of the CDN, and the TOP-CDNC transmitting a first update request, the update request for requesting the first TOP-CDNC more 分布所述内容的⑶N信息。 ⑶N distribution of the content information.
2.根据权利要求1所述的方法,其特征在于,分布所述内容的CDN信息包括:存储所述内容的CDN及其状态信息。 2. The method according to claim 1, characterized in that, the CDN distribution information of the content comprises: CDN content and storing the state information.
3.根据权利要求2所述的方法,其特征在于,所述源CDN向用户终端分发所述内容时或者在向用户终端分发所述内容之后,还包括:所述源CDN向所述TOP-CDNC发送第二更新请求,所述第二更新请求用于请求所述TOP-⑶NC更新所述源⑶N的状态信息。 3. The method according to claim 2, wherein, when the source terminal CDN distributing the content to the user or after distributing the content to the user terminal, further comprising: the source to the CDN TOP- CDNC sending a second update request, the update request for requesting the second TOP-⑶NC source ⑶N updating the status information.
4.根据权利要求1至3任意一项所述的方法,其特征在于,向TOP-⑶NC发送查询请求具体为:在无法处理所述内容分发请求时,向所述TOP-CDNC发送查询请求。 The method of any one of claims 1 to 3, characterized in that, for the particular query request sent to the TOP-⑶NC: unable to process the content distribution request, sends a query to the TOP-CDNC.
5. 一种目标内容分发网络选择方法,其特征在于,包括:接收源CDN发送的查询请求,该查询请求中包括用户终端请求分发的内容信息;根据分布所述内容的CDN信息,选择向所述用户终端分发所述内容的目标CDN ;向所述源CDN发送所述目标CDN信息,以供所述源CDN从所述目标CDN获取并缓存所述内容,根据所述内容分发请求,向用户终端分发所述内容;所述方法还包括:接收所述源CDN发送的第一更新请求,所述第一更新请求由所述源CDN在缓存所述内容后发送,用于请求更新分布所述内容的CDN信息;根据所述第一更新请求更新存储所述内容的CDN信息。 A certain content distribution network selection method, comprising: receiving a query request sent by the source CDN, the query request includes a content distribution request information of the user terminal; CDN according to the distribution of the content information, to the selection said user terminal CDN content distributing the target; the transmission target information to the CDN CDN source, the source for acquiring CDN CDN from the target and the content cache, according to the content distribution request, the user distributing the content terminal; said method further comprising: receiving a first update request sent by the CDN source, the first update request is sent by the CDN source after the content cache, a request for updating the distribution CDN content; a request to update the stored information according to the content of the first update CDN.
6.根据权利要求5所述的方法,其特征在于,分布所述内容的目标CDN信息包括:存储所述内容的CDN及其状态信息。 6. The method as claimed in claim 5, wherein said target CDN content distribution information comprises: storing the CDN content and state information.
7.根据权利要求6所述的方法,其特征在于,存储所述内容的CDN信息包括:所述内容与存储该内容的CDN信息或者各CDN与其存储的内容信息之间的对应关系信息。 7. The method according to claim 6, wherein storing the content information CDN comprising: a correspondence relationship between the information of the CDN content or content information stored in each of its CDN information of the content stored.
8.根据权利要求5所述的方法,其特征在于,还包括:接收所述源CDN或所述目标CDN发送的第二更新请求,所述第二更新请求由所述源CDN 或所述目标CDN在向用户终端分发所述内容时或者在向用户终端分发所述内容之后发送, 用于请求更新所述源CDN或所述目标CDN的状态信息;根据所述第二更新请求更新所述源CDN或所述目标CDN的状态信息。 8. The method as claimed in claim 5, characterized in that, further comprising: receiving a second request for the updating of the target or source CDN CDN transmitted, the second update request by the source or the target CDN CDN terminal when distributing the content to the user terminal after transmitting or distributing the content to the user, for requesting update of the source or the target CDN CDN state information; requesting source according to the second update of the update CDN CDN or the target status information.
9.根据权利要求5至8任意一项所述的方法,其特征在于,所述接收源⑶N发送的查询请求之前,还包括:生成分布所述内容的CDN信息。 9. Before the method of any one of claim 5 to 8, characterized in that said receiving query request ⑶N transmission source, further comprising: generating the content distribution CDN information.
10.根据权利要求9所述的方法,其特征在于,所述生成分布所述内容的CDN信息包括:接收CDN上报的CDN存储的内容信息与CDN的状态信息,所述CDN存储的内容信息与CDN的状态信息基于所述CDN内集群控制单元CC上报的内容信息与状态信息生成,该内容信息与状态信息为所述CC分别收集的该CC所在集群中内容分发功能实体CDF存储的内容信息与状态信息;根据CDN系统中各CDN存储的内容信息与CDN的状态信息,生成分布所述内容的CDNfn息ο 10. The method according to claim 9, wherein the generating the CDN content distribution information comprises: receiving status information reported by the CDN content information stored with the CDN to CDN, the CDN content information stored and CDN status information based on said cluster control unit CC CDN reported status information generating content information, the content information is content information of the cluster as the status information collected by the respective CC CC functional entity located in the content distribution and storage CDF state information; CDN according to the state information of the content information stored in the system each CDN of the CDN, the content generating distribution information ο CDNfn
11. 一种目标内容分发网络选择方法,其特征在于,包括:接收源CDN发送的查询请求,该查询请求中包括用户终端请求分发的内容信息; 向所述源CDN发送分布所述内容的目标CDN信息,以便所述源CDN选择向所述用户终端分发所述内容的目标CDN,从所述目标CDN获取并缓存所述内容; 所述方法还包括:接收所述源CDN发送的第一更新请求,所述第一更新请求由所述源CDN在缓存所述内容后发送,用于请求更新分布所述内容的CDN信息;根据所述第一更新请求更新存储所述内容的CDN信息。 11. A method for selecting a target content delivery network, wherein, comprising: a source receiving a query request sent by the CDN, the content of the query request includes information of the user terminal requesting the distribution; the content distribution destination to the source CDN CDN information, so that the selected target CDN CDN source terminal to distribute the content to the user, obtaining from said target CDN and the content buffer; said method further comprising: receiving a first update of the transmission source CDN request, the first update request is sent by the CDN source after the content cache, requesting to update the content distribution CDN information; storing the content update request information according to the first update CDN.
12.根据权利要求11所述的方法,其特征在于,分布所述内容的目标CDN信息包括:存储所述内容的CDN及其状态信息。 12. The method according to claim 11, wherein said target CDN content distribution information comprises: storing the CDN content and state information.
13.根据权利要求12所述的方法,其特征在于,存储所述内容的CDN信息包括:所述内容与存储该内容的CDN信息或者各CDN与其存储的内容信息之间的对应关系信息。 13. The method according to claim 12, wherein the stored information includes a CDN content: CDN correspondence between the information of the content or the content information stored in each of its information in the CDN content stored.
14.根据权利要求11所述的方法,其特征在于,还包括:接收所述源CDN或所述目标CDN发送的第二更新请求,所述第二更新请求由所述源CDN 或所述目标CDN在向用户终端分发所述内容时或者在向用户终端分发所述内容之后发送, 用于请求更新所述源CDN或所述目标CDN的状态信息;根据所述第二更新请求更新所述源CDN或所述目标CDN的状态信息。 14. The method according to claim 11, characterized in that, further comprising: receiving a second request for the updating of the target or source CDN CDN sent the update request by said second source or destination CDN CDN terminal when distributing the content to the user terminal after transmitting or distributing the content to the user, for requesting update of the source or the target CDN CDN state information; requesting source according to the second update of the update CDN CDN or the target status information.
15.根据权利要求11至14任意一项所述的方法,其特征在于,所述接收源⑶N发送的查询请求之前,还包括:生成分布所述内容的CDN信息。 15.11 The method according to any one of claim 14, wherein, prior to receiving the query request ⑶N transmission source, further comprising: generating the content distribution CDN information.
16.根据权利要求15所述的方法,其特征在于,所述生成分布所述内容的CDN信息包括:接收CDN上报的CDN存储的内容信息与CDN的状态信息,所述CDN存储的内容信息与CDN的状态信息基于所述CDN内群控制单元CC上报的内容信息与状态信息生成,该内容信息与状态信息为所述CC分别收集的该CC所在集群中内容分发功能实体CDF存储的内容信息与状态信息;根据CDN系统中各CDN存储的内容信息与CDN的状态信息,生成分布所述内容的⑶N信息。 16. The method according to claim 15, wherein the generating the CDN content distribution information comprises: receiving status information reported by the CDN content information stored with the CDN to CDN, the CDN content information stored and CDN said status information based on the group control unit CC CDN reported status information generating content information, the content information is content information of the cluster as the status information collected by the respective CC CC functional entity located in the content distribution and storage CDF state information; CDN according to the state information of the content information stored in the system each CDN of the CDN, the content distribution generating ⑶N information.
17. 一种内容分发装置,其特征在于,包括:第一接收模块,用于接收内容分发请求,该内容分发请求中包括请求分发的内容信息, 以及接收TOP-⑶NC返回的目标⑶N相关信息;第一发送模块,用于向所述TOP-⑶NC发送查询请求,该查询请求中包括所述请求分发的内容信息;请求处理模块,用于根据所述目标CDN相关信息,请求所述目标CDN处理所述内容分发请求;其中,所述目标CDN相关信息具体为目标CDN信息;或者所述目标CDN相关信息具体为分布所述内容的CDN信息;相应的,所述第一接收模块具体接收内容分发请求,该内容分发请求中包括请求分发的内容信息,以及接收所述TOP-CDNC返回的分布所述内容的CDN信息,并根据分布所述内容的CDN信息,选择用于处理所述内容分发请求的目标CDN ; 所述请求处理模块包括:获取单元,用于根据所述目标CDN信息,从所述 17. A content distributing apparatus, characterized by comprising: a first receiving module, configured to receive a content distribution request, the content distribution request includes content information in the distribution request, and receiving the return target TOP-⑶NC ⑶N information; a first sending module, configured to send to the TOP-⑶NC query request, the query request comprises a request for distribution of said contents information; request processing module, for CDN information according to the target, the target CDN request processing the content distribution request; wherein the information related to target specific target CDN CDN information; CDN or the target information specifically related to the content distribution CDN information; correspondingly, the first receiving module receives the content distribution request, the content distribution request includes content information, and receiving the information distribution CDN TOP-CDNC the content distribution request in return, according to the CDN content distribution information, for selecting the content distribution request processing CDN target; the request processing module comprising: an acquisition unit for CDN according to the target information, from the 目标CDN获取所述内容; 分发单元,用于根据所述内容分发请求,向用户终端分发获取的所述内容; 缓存单元,用于缓存获取的所述内容;所述第一发送模块还用于在所述缓存单元缓存获取的所述内容之后,向所述T0P-CDNC 发送第一更新请求,所述第一更新请求用于请求所述T0P-CDNC更新分布所述内容的CDN信肩、ο CDN content acquiring the target; distributing means for distribution request, acquires the content distribution to the terminal user according to the content; cache unit for caching the content acquired; the first sending module is further configured to after the contents of the cache buffer unit, and then sends a first update request to the T0P-CDNC, the first update request for requesting the CDN T0P-CDNC update the content distribution channel shoulder, o
18.根据权利要求17所述的装置,其特征在于,分布所述内容的CDN信息包括:存储所述内容的CDN及其状态信息;所述第一发送模块还用于在所述分发单元向用户终端分发所述内容时或者在向用户终端分发所述内容之后,向所述T0P-CDNC发送第二更新请求,所述第二更新请求用于请求所述TOP-⑶NC更新所述源⑶N的状态信息。 18. The apparatus according to claim 17, characterized in that, the CDN content distribution information comprises: storing the state information of its CDN content; the first sending module is further configured to distribute said means or after distributing the content to the user terminal, send a second update request to the user terminal T0P-CDNC distribute the content, the second update request for requesting the update of the TOP-⑶NC source of ⑶N status information.
19. 一种目标内容分发网络选择装置,其特征在于,包括:第三接收模块,用于接收源CDN发送的查询请求,该查询请求中包括用户终端请求分发的内容信息;存储模块,用于存储分布各内容的CDN信息; 获取模块,用于从所述存储模块中获取分布所述内容的CDN信息; 第二选择模块,用于根据分布所述内容的CDN信息,选择向所述用户终端分发所述内容的目标CDN;第二发送模块,用于向所述源CDN发送所述目标CDN信息,以供所述源CDN从所述目标CDN获取并缓存所述内容,根据所述内容分发请求,向用户终端分发所述内容;所述第三接收模块还用于接收所述源CDN发送的第一更新请求,所述第一更新请求用于请求更新分布所述内容的CDN信息;所述装置还包括更新模块,用于根据所述第一更新请求更新存储所述内容的CDN信肩、ο 19. An object content delivery network selection means, characterized by comprising: a third receiving module, configured to receive a query request sent by the source CDN, the query request includes a content distribution request information of the user terminal; storing means for CDN information storing the distribution of the content; obtaining module, configured to obtain the distribution of the content from the CDN information storage module; second selection module, according to the CDN content distribution information, to the user terminal selecting distributing the target CDN content; a second sending module, configured to send the target to the source CDN CDN information for the target source from the acquired CDN CDN and buffering the content, the content distribution according to request, distributing the content to the user terminal; and the third receiving module is further configured to receive a first update request sent by the CDN source, the first update request for requesting update of the content distribution CDN information; the said apparatus further comprising updating means for updating the stored request to the CDN content update based on the first letter of a shoulder, o
20.根据权利要求19所述的装置,其特征在于,分布所述内容的目标CDN信息包括存储所述内容的CDN及其状态信息;所述第三接收模块还用于接收所述源CDN或所述目标CDN发送的第二更新请求,所述第二更新请求用于请求更新所述源CDN或所述目标CDN的状态信息;所述更新模块,还用于根据所述第二更新请求更新所述源CDN或所述目标CDN的状态fn息ο 20. The apparatus according to claim 19, wherein the content distribution information of the target CDN CDN comprises storing the content and state information; and the third receiving module is further configured to receive the source or CDN the target update request sent by the second CDN, the second state information update request for requesting the CDN to update the source or target of CDN; the updating module is further configured to request updated based on the second updating the source or the target CDN CDN fn state information ο
21.根据权利要求20所述的装置,其特征在于,所述第三接收模块还用于接收CDN上报的CDN存储的内容信息与CDN的状态信息,所述CDN存储的内容信息与CDN的状态信息基于所述CDN内CC上报的内容信息与状态信息生成,该内容信息与状态信息为所述CC分别收集的该CC所在集群中CDF存储的内容信息与状态信息;所述装置还包括生成模块,用于根据⑶N系统中各⑶N存储的内容信息与⑶N的状态信息,生成分布所述内容的CDN信息,并存储在所述存储模块中。 21. The apparatus of claim 20, the status information of the content stored with the CDN CDN claims, characterized in that the third module is further for receiving the state information reported by the CDN content information received and stored in the CDN CDN, information generation information based on the content of the state information reported by CC within the CDN, the contents information and status information are collected as the CC CC located in the cluster of content information stored CDF status information; said means further comprises a generating module for contents information according to the state of each ⑶N ⑶N system information stored in the ⑶N, generating the content distribution CDN information and stored in the storage module.
22. —种目标内容分发网络选择装置,其特征在于,包括:第三接收模块,用于接收源CDN发送的查询请求,该查询请求中包括用户终端请求分发的内容信息;存储模块,用于存储分布各内容的CDN信息; 获取模块,用于从所述存储模块中获取分布所述内容的CDN信息; 第三发送模块,用于向所述源⑶N发送分布所述内容的目标⑶N信息,以便所述源⑶N 选择向所述用户终端分发所述内容的目标CDN,从所述目标CDN获取并缓存所述内容;所述第三接收模块还用于接收所述源CDN发送的第一更新请求,所述第一更新请求用于请求更新分布所述内容的CDN信息;所述装置还包括更新模块,用于根据所述第一更新请求更新存储所述内容的CDN信肩、ο 22. - certain kinds of content delivery network selection means, characterized by comprising: a third receiving module, configured to receive a query request source CDN sent the query request includes a user terminal requests content distribution information; storing means for CDN stores the distribution information of each content; acquisition module for acquiring a CDN distribution of the content information from the storage module; and a third sending module, for sending the target ⑶N distribution of the content information to the source ⑶N, ⑶N selected so that the source terminal to the user of the content distribution destination CDN, and buffering the content from the CDN target; the third receiving module is further configured to update the first received transmission source CDN request, the first update request for requesting update information distributed to the CDN content; said apparatus further comprising updating means for updating the stored request to the CDN content update based on the first letter of a shoulder, o
23.根据权利要求22所述的装置,其特征在于,分布所述内容的目标CDN信息包括存储所述内容的CDN及其状态信息;所述第三接收模块还用于接收所述源CDN或所述目标CDN发送的第二更新请求,所述第二更新请求用于请求更新所述源CDN或所述目标CDN的状态信息;所述更新模块,还用于根据所述第二更新请求更新所述源CDN或所述目标CDN的状态fn息ο 23. The apparatus according to claim 22, wherein the content distribution information of the target CDN CDN comprises storing the content and state information; and the third receiving module is further configured to receive the source or CDN the target update request sent by the second CDN, the second state information update request for requesting the CDN to update the source or target of CDN; the updating module is further configured to request updated based on the second updating the source or the target CDN CDN fn state information ο
24.根据权利要求23所述的装置,其特征在于,所述第三接收模块还用于接收CDN上报的CDN存储的内容信息与CDN的状态信息,所述CDN存储的内容信息与CDN的状态信息基于所述CDN内CC上报的内容信息与状态信息生成,该内容信息与状态信息为所述CC分别收集的该CC所在集群中CDF存储的内容信息与状态信息;所述装置还包括生成模块,用于根据⑶N系统中各⑶N存储的内容信息与⑶N的状态信息,生成分布所述内容的CDN信息,并存储在所述存储模块中。 24. The apparatus of claim 23 state information of the content stored with the CDN CDN claims, characterized in that the third module is further for receiving the state information reported by the CDN content information received and stored in the CDN CDN, information generation information based on the content of the state information reported by CC within the CDN, the contents information and status information are collected as the CC CC located in the cluster of content information stored CDF status information; said means further comprises a generating module for contents information according to the state of each ⑶N ⑶N system information stored in the ⑶N, generating the content distribution CDN information and stored in the storage module.
25. 一种内容分发网络系统,其特征在于,包括一个TOP-⑶NC与多个⑶N,其特征在于, 所述多个CDN中的源CDN用于接收内容分发请求,该内容分发请求中包括请求分发的内容信息;向所述T0P-CDNC发送查询请求,该内容分发请求中包括所述请求分发的内容信息; 以及接收所述T0P-CDNC返回的目标CDN信息;根据所述目标CDN信息,从所述目标CDN获取所述内容,并根据所述内容分发请求,向用户终端分发所述内容;从所述目标CDN获取所述内容之后,在所述源CDN中缓存所述内容,并向所述TOP-CDNC发送第一更新请求,所述第一更新请求用于请求所述T0P-CDNC更新分布所述内容的CDN信息;所述TOP-CDNC用于存储分布各内容的CDN信息;接收所述查询请求,获取分布所述内容的CDN信息;根据该分布所述内容的CDN信息选择向所述用户终端分发所述内容的目标⑶N ;并向所述源⑶N发送 25. A content distribution network system comprising a plurality of TOP-⑶NC ⑶N, wherein said plurality of sources in the CDN CDN for receiving a content distribution request, the content distribution request includes a request contents information distributed; T0P-CDNC sends the query request, the content distribution request includes content information of the distribution request; and receiving the target information T0P-CDNC CDN returned; CDN according to the target information, from the the target acquires the CDN content, and according to the content distribution request, distributing the content to the user terminal; after obtaining the target content from the CDN, the CDN caches the content source, and the TOP-CDNC transmitting said first update request, the first update request for updating the T0P-CDNC the CDN content distribution request information; TOP-CDNC the CDN for the distribution of the content information storage; receiving said query request, acquiring a CDN distribution of the content information; ⑶N selection target terminal distributing the content to the user according to the profile information of the CDN content; and send the source ⑶N 述目标⑶N信息;接收所述源⑶N发送的第一更新请求,根据所述第一更新请求更新存储所述内容的CDN信息。 ⑶N said target information; receiving a first update request sent by the source ⑶N request to update the stored information according to the content of the first update CDN.
26. 一种内容分发网络系统,其特征在于,包括一个TOP-⑶NC与多个⑶N,其特征在于, 所述多个CDN中的源CDN用于接收内容分发请求,该内容分发请求中包括请求分发的内容信息;向所述T0P-CDNC发送查询请求,该内容分发请求中包括所述请求分发的内容信息; 以及接收所述T0P-CDNC返回的分布所述内容的CDN信息;根据分布所述内容的CDN信息, 选择用于处理所述内容分发请求的目标CDN ;并根据所述目标CDN信息,从所述目标CDN获取所述内容,并根据所述内容分发请求,向用户终端分发所述内容;从所述目标CDN获取所述内容之后,在所述源CDN中缓存所述内容,并向所述TOP-CDNC发送第一更新请求,所述第一更新请求用于请求所述T0P-CDNC更新分布所述内容的CDN信息;所述TOP-CDNC用于存储分布各内容的CDN信息;接收所述查询请求,获取分布所述内容的⑶N信息;并向所 26. A content distribution network system comprising a plurality of TOP-⑶NC ⑶N, wherein said plurality of sources in the CDN CDN for receiving a content distribution request, the content distribution request includes a request contents information distributed; T0P-CDNC sends the query request, the content distribution request includes content information of the distribution request; and receiving the distribution information of the content CDN T0P-CDNC returned; the distribution according to CDN information content, select a target processing the CDN content distribution request; CDN information and according to the target, the target acquires the content from the CDN, and according to the content distribution request, the user terminal distribution content; after obtaining the target content from the CDN, the CDN caches the content source, and the TOP-CDNC transmitting a first update request, the update request for requesting the first T0P- CDNC CDN updating the content distribution information; TOP-CDNC the CDN for the distribution of the content information storage; receiving the query request, acquiring distribution information of the content ⑶N; and the 源⑶N发送分布所述内容的⑶N信息;接收所述源⑶N发送的第一更新请求,根据所述第一更新请求更新存储所述内容的CDN信息。 ⑶N transmission source of the content distribution ⑶N information; receiving a first update request sent by the source ⑶N request to update the stored information according to the content of the first update CDN.
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