CN102148855A - Content acquisition and delivery methods and devices - Google Patents

Content acquisition and delivery methods and devices Download PDF

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Publication number
CN102148855A
CN102148855A CN2010105602396A CN201010560239A CN102148855A CN 102148855 A CN102148855 A CN 102148855A CN 2010105602396 A CN2010105602396 A CN 2010105602396A CN 201010560239 A CN201010560239 A CN 201010560239A CN 102148855 A CN102148855 A CN 102148855A
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China
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content
csg
cdn
cr
identification information
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CN2010105602396A
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Chinese (zh)
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和晓艳
李金成
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华为技术有限公司
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Priority to CN2010105602396A priority Critical patent/CN102148855A/en
Publication of CN102148855A publication Critical patent/CN102148855A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/28Network-specific arrangements or communication protocols supporting networked applications for the provision of proxy services, e.g. intermediate processing or storage in the network
    • H04L67/2814Network-specific arrangements or communication protocols supporting networked applications for the provision of proxy services, e.g. intermediate processing or storage in the network for data redirection

Abstract

The embodiment of the invention provides a content acquisition method, a content acquisition device, a content delivery method and a content delivery device. The content acquisition method comprises that: a content storage (CSG) in a second content delivery network or a content delivery (CD) in the CDN acquires contents from the CSG in a first CDN, wherein the first CDN signs a contract with a content provider (CP)/service provider (SP), so that the first CDN can acquire the contents from the CP/SP. The content delivery method comprises that: a content route (CR) in the first CDN acquires a content request of requesting the contents corresponding to a content identifier from a terminal, wherein the first CDN signs the contract with the CP/SP, so that the first CDN can acquires the contents from the CP/SP; and the CR in the first CDN transmits the identification information of the CR in the second CDN or the CD in the second CDN to the terminal according to a delivery policy, so that the terminal can make a request to the CD in the second CDN for the contents corresponding to the content identifier.

Description

内容的获取、交付方法及装置 Access to content, delivery method and apparatus

技术领域 FIELD

[0001 ] 本发明实施例涉及通信技术,尤其涉及一种内容获取、交付方法及装置。 Example embodiments relate to communication technologies [0001] The present invention particularly relates to a content acquisition, the delivery method and apparatus. 背景技术 Background technique

[0002] 一个内容分发网络(Content Delivery Network,简称CDN)通常由内容路由实体(Content Route,简称CR)、内容存储实体(ContentMorage,简称CSG)、内容交付实体(Content Delivery,简称⑶)等实体构成。 [0002] A content delivery network (Content Delivery Network, abbreviated CDN) usually consists of content routing entity (Content Route, referred to as CR), a content storage entity (ContentMorage, referred to as CSG), the content delivery entity (Content Delivery, referred ⑶) entities such as constitution. 其中,CR可以包括存储控制实体和交付控制实体,主要负责内容相关请求的路由,包括将终端(Terminal,简称TM)的内容请求调度到适当的CD ;CSG主要负责从内容提供商(Content Provider,简称CP) /业务提供商(Service Provider,简称SP)提供的内容源获取原始内容并存储,以及向CD分发上述内容;CD是CDN 的业务提供点,是面向TM的内容提供设备。 Wherein, CR may include a storage and delivery control entity control entity responsible for routing the content-related requests, including the contents of a terminal (Terminal, abbreviated TM), the scheduling request to the appropriate CD; CSG primarily responsible for the content provider (Content Provider, content sources referred to CP) / service provider (service provider, abbreviated SP) and provided to obtain the original content storage, and distribution of the above content to a CD; CD is the CDN service provider point, the TM-oriented content providing device. 当一个CDN中的CR获取到来自TM的内容请求时,选择一个⑶,由该⑶向上述TM交付所请求的内容。 When CR is a CDN content acquired from the TM requests, select a ⑶, to deliver the requested content to the TM of the ⑶.

[0003] 现有技术中,如果TM所请求的内容所属CP/SP未与⑶N签约,该⑶N中的⑶则无法获取上述内容。 [0003] In the prior art, if the requested content belongs TM CP / SP unsigned and ⑶N, the ⑶N ⑶ not be acquired in the above. 当CDN中的CR获取到来自TM的内容请求时,所选择的CD则无法向该TM 交付所请求的未签约CP/SP的内容,从而影响了业务的正常进行。 When the CDN content acquired from CR (TM) request, the CD can not be selected to deliver the requested content to the TM CP / SP is not signed, thus affecting the normal operations.

发明内容 SUMMARY

[0004] 本发明实施例提供一种内容获取、交付方法及装置,用以解决现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证业务的正常进行。 [0004] The embodiments of the present invention provide a content acquisition, delivery methods and means to solve the problem of the prior art CDN content CR in the CD can not be delivered to the selected request to the TM unsigned CP / SP, and to ensure the normal conduct of business. 的内容的问题,保证业务的正常进行。 Questionable content, and ensure normal operations.

[0005] 本发明实施例提供了一种内容获取方法,包括: [0005] Example embodiments of the present invention there is provided a content obtaining method, comprising:

[0006] 第二⑶N中的CSG或第二⑶N中的⑶获取第一⑶N中的CSG发送的内容,所述第一⑶N与CP/SP签约,以使所述第一⑶N从所述CP/SP获取所述内容。 [0006] or a CSG second ⑶N second ⑶N ⑶ obtain content in a first CSG ⑶N transmitted, said first and ⑶N CP / contracting the SP, such that the first ⑶N from the CP / SP acquires the content.

[0007] 本发明实施例提供了一种内容交付方法,包括: [0007] The embodiments of the present invention there is provided a content delivery method, comprising:

[0008] 第一CDN中的CR获取来自终端的内容请求,用以请求与内容标识对应的内容,所述第一⑶N与CP/SP签约,以使所述第一⑶N从所述CP/SP获取所述内容; [0008] The first CDN CR acquires the content request from the terminal, for requesting content corresponding to the content identifier, and the first ⑶N CP / SP contract, so that the first ⑶N from the CP / SP obtaining the content;

[0009] 所述第一⑶N中的CR根据交付策略,向所述终端发送第二⑶N中的CR或第二⑶N 中的CD的标识信息,以使所述终端向第二CDN中的CD请求与所述内容标识对应的内容。 [0009] The first CR in accordance ⑶N delivery policy, transmitting identification information of the second ⑶N the CR or a CD second ⑶N to the terminal, so that the terminal to the second request to the CDN CD with content corresponding to the content identifier.

[0010] 本发明实施例还提供了一种内容获取装置,设置于第二⑶N中,包括获取模块,用于获取第一⑶N中的CSG发送的内容,所述第一⑶N与CP/SP签约,以使所述第一⑶N从所述CP/SP获取所述内容。 [0010] Embodiments of the present invention further provides a content acquisition means, disposed in the second ⑶N including obtaining module, configured to obtain a first content in a CSG ⑶N transmitted, and the first ⑶N CP / SP signing , so that the first ⑶N obtaining the content from the CP / SP.

[0011] 本发明实施例还提供了一种内容交付装置,设置于第一⑶N中,所述第一⑶N与CP/SP签约,以使所述第一⑶N从所述CP/SP获取内容,包括: [0011] The present invention further provides a content delivery apparatus, provided in a first ⑶N, the first and ⑶N CP / SP contract, so that the first ⑶N acquired from the CP / SP content, include:

[0012] 接收模块,用于获取来自终端的内容请求,用以请求与内容标识对应的内容; [0012] a receiving module, configured to acquire the content request from the terminal, for requesting content corresponding to the content identifier;

[0013] 发送模块,用于根据交付策略,向所述终端发送第二⑶N中的CR或第二⑶N中的CD的标识信息,以使所述终端向第二CDN中的CD请求与所述内容标识对应的内容。 [0013] sending module, configured to deliver the policy, transmitting identification information of the second ⑶N the second ⑶N CR or a CD to the terminal, so that the terminal to the second request in the CDN CD content corresponding to the content identifier. [0014] 由上述技术方案可知,本发明实施例通过第二⑶N中的CSG或第二⑶N中的⑶获取第一⑶N中的CSG发送的内容,实现了第二⑶N中的⑶能够从其他⑶N中的CSG获取该第二⑶N未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中⑶N中的CR 所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0014] From the above technical solutions, the contents of the first embodiment acquires the CSG ⑶N transmitted through the second ⑶N the CSG or the second ⑶N ⑶ present invention, to achieve the second ⑶N ⑶ can be from another ⑶N the CSG acquiring the second content ⑶N unsigned CP / SP, thereby to deliver the content to the TM, solves the prior art ⑶N CR in the CD can not be selected to deliver the requested TM unsigned CP / SP Questionable content, to ensure the normal operation of the business.

附图说明 BRIEF DESCRIPTION

[0015] 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。 [0015] In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, the accompanying drawings for illustrating the prior art described or needed to be used in an embodiment will be briefly introduced hereinafter, the description below the figures show some embodiments of the present invention, those of ordinary skill in the art is concerned, without creative efforts, can derive from these drawings other drawings.

[0016] 图1为本发明实施例一提供的内容获取方法的流程示意图; [0016] Figure 1 provides a schematic flow diagram of a content acquisition method embodiment of the invention;

[0017] 图2为本发明实施例二提供的内容获取方法的流程示意图; [0017] FIG. 2 is a schematic flow chart content acquisition method according to a second embodiment of the present invention;

[0018] 图3为本发明实施例三提供的内容获取方法的流程示意图; [0018] FIG. 3 is a schematic flow content acquisition method according to a third embodiment of the invention;

[0019] 图4为本发明实施例四提供的内容获取方法的流程示意图; [0019] FIG. 4 is a schematic flow of the method content acquisition according to a fourth embodiment of the present invention;

[0020] 图5为本发明实施例五提供的内容获取方法的流程示意图; [0020] FIG. 5 is a schematic flow content acquisition method according to a fifth embodiment of the invention;

[0021] 图6为本发明实施例六提供的内容获取方法的流程示意图; [0021] FIG. 6 is a schematic flow of the method content acquisition according to a sixth embodiment of the invention;

[0022] 图7为本发明实施例七提供的内容获取方法的流程示意图; [0022] FIG. 7 is a schematic flow provided content acquisition method according to a seventh embodiment of the invention;

[0023] 图8为本发明实施例八提供的内容获取方法的流程示意图; [0023] FIG. 8 provides a schematic flow content acquisition method embodiment eight embodiment of the invention;

[0024] 图9为本发明实施例九提供的内容获取方法的流程示意图; [0024] FIG. 9 is a schematic flow provided content acquisition method according to a ninth embodiment of the invention;

[0025] 图10为本发明实施例十提供的内容交付方法的流程示意图; [0025] FIG. 10 is a schematic flow content delivery method according to an embodiment of the present invention, ten;

[0026] 图11为本发明实施例十一提供的内容交付方法的流程示意图; [0026] FIG. 11 is a schematic flow content delivery method according to an eleventh embodiment of the present invention is provided;

[0027] 图12为本发明实施例十二提供的内容交付方法的流程示意图; [0027] FIG. 12 is a schematic flow twelve content delivery method according to an embodiment of the present invention;

[0028] 图13为本发明实施例十三提供的内容交付方法的流程示意图; [0028] FIG 13 a schematic view of flow of the content delivery method according to an embodiment of the present invention, thirteen;

[0029] 图14为本发明实施例十四提供的内容交付方法的流程示意图; [0029] Figure 14 provides a schematic flow diagram of the content delivery fourteen embodiment of a method embodiment of the present invention;

[0030] 图15为本发明实施例十五提供的内容获取装置的结构示意图; [0030] FIG 15 a schematic view of embodiment apparatus acquires the content provided by the embodiment of the present invention, fifteen;

[0031] 图16为本发明实施例十六提供的内容交付装置的结构示意图。 [0031] Figure 16 provides a schematic structural diagram of the content delivery apparatus embodiment sixteen embodiment of the invention.

具体实施方式 Detailed ways

[0032] 为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。 [0032] In order that the invention object, technical solutions, and advantages of the embodiments more clearly, the following the present invention in the accompanying drawings, technical solutions of embodiments of the present invention are clearly and completely described, obviously, the described the embodiment is an embodiment of the present invention is a part, but not all embodiments. 基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, those of ordinary skill in the art to make all other embodiments without creative work obtained by, it falls within the scope of the present invention.

[0033] 图1为本发明实施例一提供的内容获取方法的流程示意图,如图1所示,本实施例的内容获取方法可以包括以下步骤: [0033] Figure 1 provides a schematic flow chart diagram of a content acquisition method of the embodiment of the present invention, shown in Figure 1, the content acquisition method according to the present embodiment may include the steps of:

[0034] 步骤101、第二⑶N中的CSG或第二⑶N中的⑶获取第一⑶N中的CSG发送的内容,上述第一⑶N与CP/SP签约,以使上述第一⑶N从上述CP/SP获取所述内容。 [0034] Step 101, the second or the second ⑶N the CSG ⑶N ⑶ obtain content in a first CSG ⑶N transmitted in the first and ⑶N CP / contracting the SP, so that the first ⑶N from the CP / SP acquires the content.

[0035] 其中,第二⑶N可以与第一⑶N签约,第一⑶N可以直接向第二⑶N提供CP/SP的内容(详细描述可以参见下述本发明实施例二至本发明实施例五);或者,第二CDN还可以不与第一⑶N签约,则第一⑶N可以通过与第一⑶N签约的第三⑶N向第二⑶N提供CP/SP 的内容(详细描述可以参见下述本发明实施例六至本发明实施例九)。 [0035] wherein the first and second subscription may ⑶N ⑶N, may provide a first ⑶N CP / SP contents (refer to the following detailed description of the present invention may be according to the fifth embodiment according to the second embodiment to the present invention) directly to a second ⑶N; Alternatively, the second contract with CDN can not ⑶N first, then the first may be provided ⑶N CP / SP to the content through the third second ⑶N ⑶N contracted first ⑶N (refer to the following detailed description of the present invention may be embodiment EXAMPLE IX) to a six embodiment of the present invention.

[0036] 本实施例中,通过第二⑶N中的CSG或第二⑶N中的⑶获取第一⑶N中的CSG发送的与内容标识对应的内容,实现了第二CDN中的CD能够从其他CDN中的CSG获取该第二CDN未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0036] In this embodiment, obtaining a first content identifier corresponding to the CSG ⑶N content transmitted by the second ⑶N the CSG or the second ⑶N ⑶, realized in the CDN second CD can be from another CDN the contents of the second CSG acquired CDN unsigned CP / SP, thereby to deliver the content to the TM, the prior art to solve the CDN CR selected CD can not be delivered to the requested TM unsigned CP / SP Questionable content, to ensure the normal operation of the business.

[0037] 本发明实施例可以假设⑶m覆盖区域1,⑶N2覆盖区域2,CP/SP希望在区域1 和区域2为TM提供服务,但CP/SP只与⑶m签约(即CSGl能够从CP/SP的内容源获取内容),⑶m与⑶N2签约。 [0037] Embodiments of the invention may be assumed ⑶m coverage area 1, ⑶N2 coverage area 2, CP / SP want to provide services to the TM region 1 and region 2, the CP / SP only and ⑶m subscription (i.e. CSGl can be from the CP / SP the content source access to content), ⑶m and ⑶N2 contract. 下面将通过本发明实施例二至本发明实施例五进一步详细说明上述本发明实施例一的技术方案。 The following embodiments according to the second embodiment of the present invention to a technical solution of the present invention according to the fifth embodiment is further described in detail by the present invention.

[0038] 图2为本发明实施例二提供的内容获取方法的流程示意图,本实施例为上述本发明实施例一的一个具体实施例,本实施例适用于⑶m中的CSGl预先向⑶N2中的CSG2/ CD2注入内容的场景。 [0038] FIG. 2 acquires a schematic flowchart of a method of content according to a second embodiment of the present invention, the present embodiment is the embodiment of the present invention, an embodiment of a particular embodiment applicable to the present embodiment CSGl ⑶m in advance to the embodiment of ⑶N2 CSG2 / CD2 inject the contents of the scene. 如图2所示,本实施例的内容获取方法可以包括以下步骤: , The present embodiment 2 FIG acquisition method may include the steps of:

[0039] 步骤201、CRl向CR2发送内容分发请求消息,上述内容分发请求消息中包含内容标识和CSGl的标识信息; [0039] Step 201, CRl CR2 transmits to the content distribution request message to the content distribution request message contains identification information identifying the content and the CSGl;

[0040] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名;上述CSGl的标识信息可以包括但不限于以下信息:IP地址、域名。 [0040] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name; described above CSGl identification information may include but is not limited to the following information: IP address, the domain name. 具体地,上述内容分发请求消息中包含的信息可以通过一个共同的字段携带,例如:统一资源定位符(Uniform Resource Locator, 简称URL),或者还可以通过独立的字段携带,例如:URL、可扩展标记语言(extensible MarkupLanguage,简称XML)元素或属性、HTTP头域中的一项或几项。 Specifically, the content delivery request information contained in the message may be carried by a common field, for example: a uniform resource locator (Uniform Resource Locator, referred to as the URL), or may be carried by separate fields, for example: the URL, Scalable Markup language (extensible MarkupLanguage, referred to as XML) elements or attributes, one or more of HTTP header field. 例如:通过一个URL 携带上述信息=HTTP://CR2 的标识信息/192. 168. 1. 1/video/a. flv,其中192. 168. 1. 1 代表CSGl的标识信息,此处以IP地址为例,端口默认80,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in said information = HTTP:. // identification information of CR2 / 192 168. 1. 1 / video / a flv, wherein the identification information representative of 192. 168. 1.1 CSGl of IP address here. for example, the default port 80, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path.

[0041] 可选地,上述内容分发请求消息中还可以包含⑶m的标识信息、CP/SP的标识信息中的至少一项。 [0041] Alternatively, the content delivery request message may further comprise identification information ⑶m, the identification information of the at least one CP / SP in. 例如:通过一个URL携带上述信息:HTTP : //CR2的标识信息/192. 168. 1. 1/www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 1 代表CSGl 的标识信息,此处以IP为例,端口默认80,www. sina. com. cdnl. net代表⑶附的标识信息和CP/SP 的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: HTTP:...... // identification information of CR2 / 192 168. 1. 1 / www sina com cdnl net / video / a flv, wherein 192. 168. 1.1 representatives CSGl identification information, where to IP, for example, the default port 80, www. sina. com. cdnl. identification information identifying information on behalf of ⑶ net attached and CP / SP of, a. flv on behalf of content identification, the file name here for example, video / a. flv shows the content path. 如果CDNl不希望暴露CP/SP的标识信息,则可以为HTTP://CR2的标识信息/192. 168. 1. 1/ www. cdnl. net/video/a. flv。 If you do not want to expose identity information CDNl CP / SP, you can think that HTTP:.... // identification information of CR2 / 192 168. 1. 1 / www cdnl net / video / a flv. 上述以超文本传输协议(HypertextTransfer Protocol,简称HTTP)为例,还可以采用文件传输协议(File "Transferfrotocol,简称FTP)等其他协议,本实施例对此不进行限制。 Hyper Text Transfer Protocol (HypertextTransfer Protocol, referred to as HTTP) as an example above, can also be employed File Transfer Protocol (File "Transferfrotocol, referred to as FTP) and other protocols, the present embodiment is not limited in this embodiment.

[0042] 需要说明的是:本步骤中,CRl可以根据预先设置的策略和签约信息,向CR2发送上述内容分发请求消息,或者还可以接收其他实体的请求之后,向CR2发送上述内容分发请求消息,本实施例对此不进行限制。 [0042] It should be noted that: In this step, CRl according to policy and subscription information set in advance, transmits the content to the CR2 distribution request message, or may also receive requests from other entities after the delivery of the content to the CR2 distribution request message , the present embodiment is not limited in this embodiment.

[0043] 可选地,本步骤不限于CRl向CR2发送上述内容分发请求消息,还可以是一个新的网元实体向CR2发送上述内容分发请求消息,本实施例对此不进行限制。 [0043] Alternatively, the present step is not limited to the above CRl CR2 transmits the distribution request message, may be a new network element entity transmits the content distribution request message to CR2, the present embodiment is not limited in this embodiment.

[0044] 步骤202、CR2选择CSG2/CD2,向所选择的CSG2/CD2发送内容分发请求消息,上述内容分发请求消息中包含上述内容标识和上述CSGl的标识信息;[0045] 具体地,CR2可以对接收到的内容分发请求消息进行验证,例如:是否来自签约的⑶N、请求是否合法等,验证通过之后,选择适当的CSG2/⑶2,向所选择的CSG2/⑶2转发上述内容分发请求消息。 [0044] Step 202, CR2 select CSG2 / CD2, to CSG2 / CD2 transmits the selected content distribution request message, of the content delivery request message includes identification information of the content identifier and said CSGl; and [0045] Specifically, CR2 is possible the received content distribution request message to verify, for example: whether the contract from ⑶N, like request is legitimate, then validated by selecting the appropriate CSG2 / ⑶2, forwarded to the selected CSG2 / ⑶2 the content delivery request message. 其中,CR2在转发上述内容分发请求消息之前,CR2可以对接收到的内容分发请求消息进行修改。 Wherein, CR2 prior to forwarding the content delivery request message, CR2 can be received content distribution request message to be modified.

[0046] 步骤203、CSG2/CD2向CR2返回内容分发响应消息; [0046] Step 203, CSG2 / CD2 CR2 distributing content to return a response message;

[0047] 可选地,上述内容分发响应消息中可以包含CSG2/⑶2的标识信息,上述CSG2/⑶2 的标识信息可以包括但不限于以下信息:IP地址、域名。 [0047] Alternatively, the content delivery response message may include identification information CSG2 / ⑶2, said identification information CSG2 / ⑶2 may include but is not limited to the following information: IP address, the domain name.

[0048] 步骤204、CR2向CRl返回内容分发响应消息; [0048] Step 204, CR2 returns a response message to the content distribution CRl;

[0049] 可选地,上述内容分发响应消息中可以包含⑶N2的标识信息、上述内容标识中的 [0049] Alternatively, the content delivery response message may include identification information ⑶N2, said content identifier of

至少一项。 At least one.

[0050] 步骤205、CSG2/CD2根据获取的CSGl的标识信息,向CSGl发送请求内容消息,上述请求内容消息中包含上述内容标识; [0050] Step 205, CSG2 / CD2 CSGL according to the identification information acquired, and transmits the content request message to CSGL, the content of the above-described request message includes the content identifier;

[0051] 步骤206、CSG1根据上述内容标识,向CSG2/CD2返回与上述内容标识对应的内容。 [0051] Step 206, CSG1 according to the content identifier, the content identifier corresponding to the returned content to CSG2 / CD2.

[0052] 本实施例中,CSG2/CD2通过CR2获取内容分发请求消息,根据该内容分发请求消息中所包含的CSGl的标识信息,向该CSGl请求与该内容分发请求消息中所包含的内容标识对应的内容,从而使得CSG2/CD2能够获取CSGl发送的与内容标识对应的内容,实现了⑶2能够从其他签约⑶N(⑶附)中的CSG(CSGl)获取⑶N2未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0052] In this embodiment, CSG2 / CD2 CR2 by obtaining the content distribution request message, according to the identification information CSGl message included in the content distribution request, to the content CSGl request to the content distribution request message contains identification corresponding to the content, so that CSG2 / CD2 can acquire the content identifier corresponding to CSGL content sent achieved ⑶2 capable of acquiring content ⑶N2 unsigned CP / SP from other subscription ⑶N (⑶ attached) in the CSG (CSGl), whereby able to deliver the content to the TM, to solve the problems of the prior art CDN content in the selected CD CR unable to deliver the requested TM unsigned CP / SP, to ensure the normal conduct of business.

[0053] 图3为本发明实施例三提供的内容获取方法的流程示意图,本实施例为上述本发明实施例一的另一个具体实施例,本实施例适用于⑶m中的CSGl预先向⑶N2中的CSG2/ CD2注入内容的场景。 Schematic flow chart of the content acquisition method according to a third embodiment in advance to ⑶N2 [0053] FIG. 3 of the present invention, the present embodiment is the embodiment of the present invention, another embodiment of a particular embodiment of the embodiment, applicable to the present embodiment ⑶m embodiment of CSGl the CSG2 / CD2 inject the contents of the scene. 如图3所示,本实施例的内容获取方法可以包括以下步骤: , The present embodiment 3 FIG acquisition method may include the steps of:

[0054] 步骤301、CRl向CR2发送内容分发请求消息,上述内容分发请求消息中包含内容标识; [0054] Step 301, CRl CR2 transmits to the content distribution request message to the content distribution request message includes the content identifier;

[0055] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名。 [0055] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name.

[0056] 可选地,上述内容分发请求消息中还可以包含⑶附的标识信息、CP/SP的标识信息、CSGl的标识信息中的至少一项。 [0056] Alternatively, the content delivery request message may further comprise identification information appended ⑶, identification information of CP / SP, the at least one identification information in CSGl. 其中,上述CSGl的标识信息可以包括但不限于以下信息:IP地址、域名。 Wherein the identification information of the CSGl may include but is not limited to the following information: IP address, the domain name. 具体地,上述内容分发请求消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, the content delivery request information contained in the message may be carried by a common field, for example: the URL, or may also be carried by separate fields, for example: a URL, XML elements or attributes, HTTP header field or several. 例如:通过一个URL携带上述信息:HTTP://CR2的标识信息/192. 168. 1. 1/ www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 1 代表CSGl 的标识信息,此处以IP为例,端口默认80,www. sina. com. cdnl. net代表CDNl的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: HTTP:...... // identification information of CR2 / 192 168. 1. 1 / www sina com cdnl net / video / a flv, wherein 192. 168. 1.1 identification information CSGl behalf of, here for IP, for example, the default port 80, www. sina. com. cdnl. CDNl identification information identifying information represents the net and CP / SP of, a. flv on behalf of content identification, with the file name here embodiment, video / a. flv shows a content path. 如果⑶附不希望暴露CP/SP的标识信息,则可以为HTTP://CR2的标识信息/192. 168. 1. 1/www. cdnl. net/video/a. flv。 If ⑶ not want to expose the identification information attached to CP / SP, and that may HTTP:.... // identification information of CR2 / 192 168. 1. 1 / www cdnl net / video / a flv. 如果上述内容分发请求消息中同时不包含CSGl的标识信息,则可以为HTTP://www. cdnl. net/video/a. flv。 If the content delivery request message including identification information without the CSGl may be that HTTP:... // www cdnl net / video / a flv. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0057] 需要说明的是:本步骤中,CRl可以根据预先设置的策略和签约信息(例如:其中的策略可以是一旦CP/SP向⑶m注入了内容,则⑶m向与其签约的⑶N2发送内容分发请求消息),向CR2发送上述内容分发请求消息,或者还可以接收其他实体(例如:网络管理实体)的请求之后,向CR2发送上述内容分发请求消息,本实施例对此不进行限制。 [0057] It should be noted that: In this step, CRl may (e.g., according to a preset policy and subscription information: wherein the policy may be once CP / SP into a content to ⑶m, the ⑶m to ⑶N2 transmit content subscribed to its distribution request message), CR2 transmits the distribution request message to the content, or may also receive other entities (e.g.: after the network management entity) requesting, CR2 transmits the distribution request message to the content, the present embodiment is not limited in this embodiment.

[0058] 可选地,本步骤不限于CRl向CR2发送上述内容分发请求消息,还可以是一个新的网元实体(例如:网络管理实体)向CR2发送上述内容分发请求消息,本实施例对此不进行限制。 [0058] Alternatively, the present step is not limited to the above CRl CR2 transmits the distribution request message, may also be a new network element entity (eg: the network management entity) transmits the content distribution request message to CR2, embodiments of the present embodiment this is not restricted.

[0059] 步骤302、CR2选择CSG2/CD2,向所选择的CSG2/CD2发送内容分发请求消息,上述内容分发请求消息中包含上述内容标识; [0059] Step 302, CR2 select CSG2 / CD2, to CSG2 / CD2 transmits the selected content distribution request message, of the content delivery request message including the content identification;

[0060] 具体地,CR2可以对接收到的内容分发请求消息进行验证,例如:是否来自签约的⑶N、请求是否合法等,验证通过之后,选择适当的CSG2/⑶2,向所选择的CSG2/⑶2转发上述内容分发请求消息。 [0060] Specifically, the content can CR2 received distribution request message to verify, for example: whether ⑶N from subscription, the request is legitimate and the like, after the authentication is passed, selecting an appropriate CSG2 / ⑶2, to the selected CSG2 / ⑶2 forwarding the content delivery request message. 其中,CR2在转发上述内容分发请求消息之前,CR2可以对接收到的内容分发请求消息进行修改。 Wherein, CR2 prior to forwarding the content delivery request message, CR2 can be received content distribution request message to be modified.

[0061] 步骤303、CSG2/CD2向CR2返回内容分发响应消息; [0061] Step 303, CSG2 / CD2 CR2 distributing content to return a response message;

[0062] 可选地,上述内容分发响应消息中可以包含CSG2/⑶2的标识信息,上述CSG2/⑶2 的标识信息可以包括但不限于以下信息:IP地址、域名。 [0062] Alternatively, the content delivery response message may include identification information CSG2 / ⑶2, said identification information CSG2 / ⑶2 may include but is not limited to the following information: IP address, the domain name.

[0063] 需要说明的是:上述步骤302与步骤303是可选执行步骤。 [0063] Note that: the above-described step 302 and step 303 is an optional step.

[0064] 步骤304、CR2向CRl返回内容分发响应消息,上述内容分发响应消息中包含CSG2/ CD2的标识信息; [0064] Step 304, CR2 CRl distribution returns a response message to the content, the content delivery response message containing identification information CSG2 / CD2 of;

[0065] 具体地,其中的CSG2/⑶2的标识信息可以是CR2从上述步骤303中的内容分发响应消息中获取的,或者还可以是CR2根据本地的配置信息获取的。 [0065] In particular, where the identification information of CSG2 / ⑶2 CR2 may be distributed in a response message from the content acquired in step 303 above, or may be acquired CR2 according to the local configuration information.

[0066] 可选地,上述内容分发响应消息中可以包含⑶N2的标识信息、上述内容标识中的至少一项。 [0066] Alternatively, the content delivery response message may include identification information ⑶N2 at least one of the content identifier. 例如:通过一个URL携带上述信息=HTTP://CRl的标识信息/192. 168. 1. 2/ www. cdn2. net/video/a. flv,其中192. 168. 1. 2 代表CSG2/CD2 的标识信息,此处以IP 为例,www. cdn2. net代表⑶N2的标识信息,a. flv代表内容标识,此处以文件名为例,video/ a. flv表示了内容路径。 For example: by a URL carried in said information = HTTP: // identification information of CRl / 192 168. 1. 2 / www cdn2 net / video / a flv, wherein 168. 1.2 192. Representative CSG2 / CD2.... identification information, where to IP, for example, www. cdn2. net identification information ⑶N2 behalf of, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path.

[0067] 步骤305、CR1向CSGl发送内容分发通知消息,上述内容分发通知消息中包含上述CSG2/⑶2的标识信息和上述内容标识; [0067] Step 305, CR1 transmits to the content distribution CSGl notification message, the content delivery notification message including the identification information CSG2 / ⑶2 and the content identifier;

[0068] 可选地,上述内容分发通知消息中可以包含⑶N2的标识信息。 [0068] Alternatively, the content delivery notification message may include identification information of ⑶N2.

[0069] 步骤306、CSG1根据上述CSG2/CD2的标识信息和上述内容标识,向CSG2/CD2返回与上述内容标识对应的内容; [0069] Step 306, CSG1 based on the identification information CSG2 / CD2 and the content identifier, and returns the contents to the content identifier corresponding to CSG2 / CD2;

[0070] 步骤307、CSGl向CRl返回内容分发响应消息。 [0070] Step 307, CSGl returns a response message to the content distribution CRl.

[0071] 本实施例中,CR2或者CSG2/⑶2获取内容分发请求消息,向CRl返回CSG2/⑶2的标识信息,从而使得CSG2/CD2能够获取CSG 1发送的与内容标识对应的内容,实现了CD2 能够从其他签约⑶N(⑶m)中的CSG(CSGl)获取⑶N2未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0071] In this embodiment, CR2 is or CSG2 / ⑶2 acquires the content distribution request message, return the identification information CSG2 / ⑶2 to CRl, so that CSG2 / CD2 can acquire content with the content identifier corresponding to the CSG 1 transmission, to achieve a CD2 can be acquired from another subscription ⑶N (⑶m) in CSG (CSGl) ⑶N2 content unsigned CP / SP, thereby to deliver the content to the TM, CD solves the prior art in the CDN CR can not be delivered to a selected TM problems CP / SP contents unsigned requested to ensure normal operations.

[0072] 图4为本发明实施例四提供的内容获取方法的流程示意图,本实施例为上述本发明实施例一的另一个具体实施例,本实施例适用于CDN2中的CD2获取来自TM的请求内容消息之后的CD2缓存没有命中(Cache miss)所触发的获取内容的场景。 [0072] FIG. 4 schematic flowchart of a method for acquiring content according to a fourth embodiment of the present invention, the present embodiment is the embodiment of the present invention a particular embodiment a further embodiment, the CDN2 apply to the present embodiment acquired from CD2 (TM) CD2 cache contents after the request message is not hit (cache miss) to obtain the content of the scene triggered. 如图4所示,本实施例的内容获取方法可以包括以下步骤:[0073] 步骤401、⑶2向CR2发送请求内容消息,上述请求内容消息中包含内容标识; , The present embodiment 4 acquisition method may include the steps of: [0073] Step 401, ⑶2 CR2 sends a request to the message content, the above content contains content identification request message;

[0074] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名。 [0074] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name.

[0075] 可选地,上述请求内容消息中还可以包含⑶附的标识信息、CP/SP的标识信息、 CD2的标识信息中的至少一项。 [0075] Optionally, the content request message may further comprise identification information appended ⑶, CP / SP identification information, the identification information of at least one of CD2. 其中,上述CD2的标识信息可以包括但不限于以下信息:IP 地址、域名。 Wherein the identification information of the CD2 may include but is not limited to the following information: IP address, the domain name. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如: URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息=HTTP://CR2的标识信息/192. 168. 1. 2/www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 2代表CD2的标识信息,此处以IP为例,端口默认80,www. sina. com. cdnl. net代表⑶附的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in said information = HTTP:...... // identification information of CR2 / 192 168. 1. 2 / www sina com cdnl net / video / a flv, wherein 192. 168. 1.2 CD2 representatives of identifying information, where to IP, for example, the default port 80, www. sina. com. cdnl. identification information identifying information on behalf of ⑶ net attached and CP / SP of, a. flv on behalf of content identification, the file name here for example, video / a. flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0076] 步骤402、CR2向CRl发送请求内容消息,上述请求内容消息中包含上述内容标识; [0076] Step 402, CR2 sends a request message to the content CRl, the content of the above-described request message includes the content identifier;

[0077] 具体地,CR2可以根据预先设置的策略和签约信息(例如:其中的策略可以是CR2 根据获取的内容标识,向与⑶N2签约的ram的CRl发送请求内容消息),向CRl发送请求内容消息。 [0077] Specifically, CR2 is according to a preset policy and subscription information (for example: The acquired content identifier, the CRl and ⑶N2 contracted ram transmission request content message wherein the policy may be CR2 is), the CRl transmission request content messages.

[0078] 具体地,CR2在转发上述请求内容消息之前,CR2可以对接收到的请求内容消息进行修改,例如:增加CDN2的标识信息。 [0078] Specifically, CR2 is above the requested content before forwarding the message, the content request message abutment CR2 is received can be modified, for example: increasing the identification information CDN2.

[0079] 需要说明的是:本步骤是通过CR2代理CD2向CRl请求来实现请求内容的,可替换地,本步骤还可以通过CR2重定向⑶2的请求到CRl来实现请求内容,此处不再赘述。 [0079] It should be noted that: This step is achieved CR2 agent CD2 Request to content by CRl, alternatively, this step can also be implemented by requesting CR2 content request to redirect ⑶2 CRl, where no repeat.

[0080] 步骤403、CR1向CR2返回请求响应消息,上述请求响应消息中包含所选择的CSGl 的标识信息和上述内容标识; [0080] Step 403, CR1 request response message returned to CR2, in response to the request identification information and said contents CSGl message containing the selected identifier;

[0081] 其中,上述CSGl的标识信息可以包括但不限于以下信息:IP地址、域名。 [0081] wherein the identification information of the CSGl may include but is not limited to the following information: IP address, the domain name.

[0082] 步骤404、CR2向⑶2返回请求响应消息,上述请求响应消息中包含上述CSGl的标识信息和上述内容标识; [0082] Step 404, CR2 request response message returned to ⑶2, in response to the above request message includes identification information of the CSGl and the content identifier;

[0083] 步骤405、⑶2根据获取的CSGl的标识信息,向CSGl发送请求内容消息,上述请求内容消息中包含上述内容标识; [0083] Step 405, ⑶2 CSGL according to the identification information acquired, sends a request message to CSGL content, the content of the above-described request message includes the content identifier;

[0084] 步骤406、CSGl根据上述内容标识,向CD2返回与上述内容标识对应的内容。 [0084] Step 406, CSGl according to the content identifier, and return the content to the content identifier corresponding to CD2.

[0085] 本实施例中,⑶2获取来自TM的请求内容消息,如果⑶2缓存没有命中,可以通过CR2向CRl请求与该请求内容消息中所包含的内容标识对应的内容,进一步根据获取的CRl 所返回的CSGl的标识信息,向该CSGl请求与该请求内容消息中所包含的内容标识对应的内容,从而使得CD2能够获取CSGl发送的与内容标识对应的内容,实现了CD2能够从其他CDN(OMl)中的CSG(CSGl)获取CDN2未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0085] In this embodiment, ⑶2 acquisition request content message from the TM, if ⑶2 a cache miss, may request content identification corresponding to the requested content included in the message content to CRl by CR2 is, CRl the further accordance with the acquired CSGl returned identification information, to request content CSGl identifier corresponding to the content request message included in the content, can be acquired so that CD2 content corresponding to the identifier CSGl content sent from another can be achieved CD2 CDN (OMl ) in CSG (CSGl) acquires the content CDN2 unsigned CP / the SP, thereby to deliver the content to the TM, the prior art to solve the CDN CR selected CD can not be delivered to the requested unsigned TM CP / SUMMARY the SP is to ensure the normal conduct of business.

[0086] 图5为本发明实施例五提供的内容获取方法的流程示意图,本实施例为上述本发明实施例一的另一个具体实施例,本实施例适用于CDN2中的CD2获取来自TM的请求内容消息之后的CD2缓存没有命中(Cache miss)所触发的获取内容的场景。 [0086] FIG. 5 is a schematic flowchart of a method of acquiring content according to a fifth embodiment of the present invention, the present embodiment is the embodiment of the present invention a particular embodiment a further embodiment, the present embodiment is applicable to the CD2 CDN2 acquired from the TM CD2 cache contents after the request message is not hit (cache miss) to obtain the content of the scene triggered. 如图5所示,本实施例的内容获取方法可以包括以下步骤:[0087] 步骤501、⑶2向CR2发送请求内容消息,上述请求内容消息中包含内容标识; 5, the embodiment of the present embodiment the content acquisition method may include the steps of: [0087] Step 501, ⑶2 CR2 sends a request to the message content, the above content contains content identification request message;

[0088] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名。 [0088] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name.

[0089] 可选地,上述请求内容消息中还可以包含⑶附的标识信息、CP/SP的标识信息、 CD2的标识信息中的至少一项。 [0089] Optionally, the content request message may further comprise identification information appended ⑶, CP / SP identification information, the identification information of at least one of CD2. 其中,上述CD2的标识信息可以包括但不限于以下信息:IP 地址、域名。 Wherein the identification information of the CD2 may include but is not limited to the following information: IP address, the domain name. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如: URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息=HTTP://CR2的标识信息/192. 168. 1. 2/www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 2代表CD2的标识信息,此处以IP为例,端口默认80,www. sina. com. cdnl. net代表CDNl的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in said information = HTTP:...... // identification information of CR2 / 192 168. 1. 2 / www sina com cdnl net / video / a flv, wherein 192. 168. 1.2 CD2 on behalf of identification information of where to IP, for example, the default port 80, www. sina. com. cdnl. CDNl identification information identifying information represents the net and CP / SP of, a. flv on behalf of content identification, with the file name here embodiment, video / a. flv shows a content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0090] 步骤502、CR2向CRl发送请求内容消息,上述请求内容消息中包含⑶2的标识信息和上述内容标识; [0090] Step 502, CR2 sends a request message to the content CRl, the content of the above-described request message includes the identification information and the content identifier ⑶2;

[0091] 具体地,其中的⑶2的标识信息可以是CR2从上述步骤501中的请求内容消息中获取的,或者还可以是CR2根据本地的配置信息获取的。 [0091] In particular, where the identification information ⑶2 CR2 may be obtained from the above step 501 the contents of the request message, or may also be obtained CR2 according to the local configuration information.

[0092] 具体地,CR2在转发上述请求内容消息之前,CR2可以对接收到的请求内容消息进行修改,例如:增加CDN2的标识信息。 [0092] Specifically, CR2 is above the requested content before forwarding the message, the content request message abutment CR2 is received can be modified, for example: increasing the identification information CDN2.

[0093] 需要说明的是:本步骤为CR2代理⑶2向CRl请求来实现请求内容的,可替换地, 本步骤还可以通过CR2重定向⑶2的请求到CRl来实现请求内容,此处不再赘述。 [0093] It should be noted that: This step is achieved CR2 agent ⑶2 CRl requested content to the request, alternatively, this step can also be implemented by requesting CR2 content request to redirect ⑶2 CRl, is not repeated here .

[0094] 步骤503、CR1向CSGl发送内容分发通知消息,上述内容分发通知消息中包含上述CD2的标识信息和上述内容标识; [0094] Step 503, CR1 sends CSGl content delivery notification message, the content delivery notification message includes the identification information of the CD2 and the content identifier;

[0095] 可选地,上述内容分发通知消息中可以包含⑶N2的标识信息。 [0095] Alternatively, the content delivery notification message may include identification information of ⑶N2.

[0096] 步骤504、CSG1根据上述⑶2的标识信息和上述内容标识,向⑶2返回与上述内容标识对应的内容。 [0096] Step 504, CSG1 ⑶2 according to the identification information of the content identifier and said returned content corresponding to the content identifier to ⑶2.

[0097] 本实施例中,⑶2获取来自TM的请求内容消息,如果⑶2缓存没有命中,可以通过CR2向CRl请求与该请求内容消息中所包含的内容标识对应的内容,同时向CRl发送⑶2的标识信息,从而使得CD2能够获取CSGl发送的与内容标识对应的内容,实现了CD2能够从其他⑶N (⑶附)中的CSG (CSGl)获取⑶N2未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0097] In this embodiment, ⑶2 acquisition request content message from the TM, if ⑶2 a cache miss, request identifying content corresponding to the content of the request content included in the message to CRl through CR2, simultaneous transmission ⑶2 to CRl of identification information, so that the CD2 can obtain the content identifier corresponding to CSGL transmitted content, to achieve the CD2 can be CSG (CSGl) from other ⑶N (⑶ attached) to acquire the content ⑶N2 unsigned CP / SP, thereby to deliver to TM the content of solving the problem of CP / SP content of the prior art are not signed in CR CDN selected CD can not deliver the request to the TM, to ensure the normal conduct of business.

[0098] 可选地,本发明实施例还可以假设⑶m覆盖区域1,⑶N2覆盖区域2,⑶N3覆盖区域3,CP/SP希望在区域1、区域2和区域3为TM提供服务,但CP/SP只与⑶附签约(即CSGl能够从CP/SP的内容源获取内容),⑶m与⑶N2签约,⑶N2与⑶N3签约。 [0098] Alternatively, embodiments of the present invention may also be assumed ⑶m coverage area 1, ⑶N2 coverage area 2, ⑶N3 coverage area 3, CP / desired the SP 1, region 2 and region 3 to serve the TM region, the CP / SP ⑶ attached only to contract (i.e. CSGl content can be acquired from the CP / SP content source), ⑶m signed with ⑶N2, ⑶N2 with ⑶N3 signed. 下面将通过本发明实施例六至本发明实施例九进一步详细说明上述本发明实施例一的技术方案。 The following Examples six to the present invention, Examples of the present invention a technical solution of nine cases of embodiment of the present invention in further detail.

[0099] 图6为本发明实施例六提供的内容获取方法的流程示意图,本实施例为上述本发明实施例一的另一个具体实施例,本实施例适用于⑶m中的CSGl预先向⑶N3中的CSG3/ CD3注入内容的场景。 [0099] FIG. 6 is a schematic flow chart of the content acquisition method according to a sixth embodiment of the invention ⑶N3 to advance, the present embodiment is another embodiment of the present invention, a specific embodiment of the embodiment, applicable to the present embodiment ⑶m embodiment of CSGl the CSG3 / CD3 inject the contents of the scene. 如图6所示,本实施例的内容获取方法可以包括以下步骤: 6, the content acquisition method according to the present embodiment may include the steps of:

[0100] 步骤601、CRl向CR2发送内容分发请求消息,上述内容分发请求消息中包含内容标识、CSGl的标识信息和分发目的信息;[0101] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名;上述CSGl的标识信息可以包括但不限于以下信息:IP地址、域名;上述分发目的信息可以是CDN3的标识信息,还可以是区域3的标识信息,如区域3进一步划分为多个子域,还可以携带区域3的子域标识信息。 [0100] Step 601, CRl to CR2 sends a content distribution request message, of the content delivery request message includes the content identifier, the identification information CSGl and distribution destination information; [0101] wherein, the content identifier may include, but is not limited to the following identity: file name, the domain name; identification information of the CSGl may include but is not limited to the following information: IP address, the domain name; and the distribution destination information may be identification information CDN3 may also be identification information of the region 3 as the region 3 is further divided into a plurality sub-domains, sub-domains may also carry identification information area 3. 具体地,上述内容分发请求消息中包含的信息可以通过一个共同的字段携带, 例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, the content delivery request information contained in the message may be carried by a common field, for example: the URL, or may also be carried by separate fields, for example: a URL, XML elements or attributes, HTTP header field or several. 例如:通过一个URL携带上述信息=HTTP://CR2的标识信息/192. 168. 1. 1/分发目的信息/video/a. flv,其中192. 168. 1. 1代表CSGl的标识信息,此处以IP地址为例, 端口默认80,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in said information = HTTP:. // identification information of CR2 / 192 168. 1.1 / distribution destination information / video / a flv, wherein 192. 168. 1.1 CSGl representative of the identification information. here IP address, for example, the default port 80, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path.

[0102] 可选地,上述内容分发请求消息中还可以包含⑶m的标识信息、CP/SP的标识信息中的至少一项。 [0102] Alternatively, the content delivery request message may further comprise identification information ⑶m, the identification information of the at least one CP / SP in. 例如:通过一个URL携带上述信息:HTTP : //CR2的标识信息/192. 168. 1. 1/ 分发目的信息/www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 1 代表CSGl的标识信息,此处以IP为例,端口默认80,www. sina. com. cdnl. net代表CDNl的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: HTTP:. // identification information of CR2 / 192 168. 1.1 / distribution destination information / www sina com cdnl net / video / a flv, wherein 192.168..... 1. CSGl 1 represents the identification information, the IP here as an example, the default port 80, www. sina. com. cdnl. CDNl identification information representative of the identification information of the net and CP / SP of, a. flv behalf of the content identifier, this punishable by file name, for example, video / a. flv shows the content path. 如果CDm不希望暴露CP/SP的标识信息,则可以为HTTP://CR2的标识信息/192. 168. 1. 1/分发目的信息/www. cdnl. net/video/a. flv。 If you do not want to expose identity information CDm CP / SP, you can think that HTTP:. // identification information of CR2 / 192 168. 1.1 / distribute informational purposes / www cdnl net / video / a flv.... 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0103] 需要说明的是:本步骤中,CRl可以根据预先设置的策略和签约信息,向CR2发送上述内容分发请求消息,或者还可以接收其他实体的请求之后,向CR2发送上述内容分发请求消息,本实施例对此不进行限制。 [0103] It should be noted that: In this step, CRl according to policy and subscription information set in advance, transmits the content to the CR2 distribution request message, or may also receive requests from other entities after the delivery of the content to the CR2 distribution request message , the present embodiment is not limited in this embodiment.

[0104] 可选地,本步骤不限于CRl向CR2发送上述内容分发请求消息,还可以是一个新的网元实体向CR2发送上述内容分发请求消息,本实施例对此不进行限制。 [0104] Alternatively, the present step is not limited to the above CRl CR2 transmits the distribution request message, may be a new network element entity transmits the content distribution request message to CR2, the present embodiment is not limited in this embodiment.

[0105] 步骤602、CR2根据获取的上述分发目的信息,选择CR3,向与所选择的CR3发送内容分发请求消息,上述内容分发请求消息中包含上述内容标识和上述CSGl的标识信息; [0105] Step 602, CR2 distribution destination information based on the acquired selection CR3, and transmits the selected CR3 content distribution request message, of the content delivery request message includes identification information of the content and identification of the above-described CSGl;

[0106] 可选地,上述内容分发请求消息中可以包括分发目的信息,上述分发目的信息可以是CDN3的标识信息,还可以是区域3的标识信息,如区域3进一步划分为多个子域,还可以携带区域3的子域标识信息。 [0106] Alternatively, the content delivery request message may be included in the distribution destination information, the above-mentioned distribution destination information may be identification information CDN3 may also be identification information of region 3, such as 3 further divided into a plurality of sub-region domains, further subdomains may carry identification information area 3.

[0107] 具体地,CR2可以对接收到的内容分发请求消息进行验证,例如:是否来自签约的CDN、请求是否合法等,验证通过之后,根据分发目的信息,选择适当的CR3,向所选择的CR3 转发上述内容分发请求消息。 [0107] Specifically, the content can CR2 received distribution request message to verify, for example: whether the CDN from a subscription, the request is legitimate and the like, after the verification is passed, depending on the distribution destination information, select the appropriate CR3, to the selected CR3 forwarding the content delivery request message. 其中,CR2在转发上述内容分发请求消息之前,CR2可以对接收到的内容分发请求消息进行修改。 Wherein, CR2 prior to forwarding the content delivery request message, CR2 can be received content distribution request message to be modified.

[0108] 可选地,CR2可以创建分发目的信息与CP/SP的标识信息和/或内容标识的映射关系,以供后续终端请求的路由。 [0108] Alternatively, CR2 is possible mapping between the identification information and the distribution destination information CP / SP and / or identification of the content to the terminal by routing subsequent requests.

[0109] 步骤603、CR3选择CSG3/⑶3,向所选择的CSG3/⑶3发送内容分发请求消息,上述内容分发请求消息中包含上述内容标识和上述CSGl的标识信息; [0109] Step 603, CR3 select CSG3 / ⑶3, transmits the selected content CSG3 / ⑶3 distribution request message, of the content delivery request message includes identification information of the content and identification of the above-described CSGl;

[0110] 具体地,CR3可以对接收到的内容分发请求消息进行验证,例如:是否来自签约的CDN、请求是否合法等,验证通过之后,选择适当的CSG3/⑶3,向所选择的CSG3/⑶3转发上述内容分发请求消息。 [0110] Specifically, the content can be CR3 received distribution request message to verify, for example: whether the CDN from a subscription, the request is legitimate and the like, after the authentication is passed, selecting an appropriate CSG3 / ⑶3, to the selected CSG3 / ⑶3 forwarding the content delivery request message. 其中,CR3在转发上述内容分发请求消息之前,CR3可以对接收到的内容分发请求消息进行修改。 Wherein, CR3 before forwarding the content delivery request message, CR3 can be received content distribution request message to be modified.

[0111] 步骤604、CSG3/CD3向CR3返回内容分发响应消息;[0112] 可选地,上述内容分发响应消息中可以包含CSG3/⑶3的标识信息,上述CSG3/⑶3 的标识信息可以包括但不限于以下信息:IP地址、域名。 [0111] Step 604, CSG3 / CD3 returns a response message to the content distribution CR3; [0112] Alternatively, the content delivery response message may include identification information CSG3 / ⑶3, said identification information CSG3 / ⑶3 may include, but are not limited to the following information: IP addresses, domain names.

[0113] 步骤605、CR3向CR2返回内容分发响应消息; [0113] Step 605, CR3 returns a response message to the content distribution CR2 is;

[0114] 可选地,上述内容分发响应消息中可以包含⑶N3的标识信息、上述内容标识中的 [0114] Alternatively, the content delivery response message may include identification information ⑶N3, said content identifier of

至少一项。 At least one.

[0115] 步骤606、CR2向CRl返回内容分发响应消息; [0115] Step 606, CR2 returns a response message to the content distribution CRl;

[0116] 可选地,上述内容分发响应消息中可以包含⑶N3的标识信息、上述内容标识中的 [0116] Alternatively, the content delivery response message may include identification information ⑶N3, said content identifier of

至少一项。 At least one.

[0117] 步骤607、CSG3/⑶3根据获取的CSGl的标识信息,向CSGl发送请求内容消息,上述请求内容消息中包含上述内容标识; [0117] Step 607, CSG3 / ⑶3 CSGL according to the identification information acquired, sends a request message to CSGL content, the content of the above-described request message includes the content identifier;

[0118] 步骤608、CSG1根据上述内容标识,向CSG3/CD3返回与上述内容标识对应的内容。 [0118] Step 608, CSG1 according to the content identifier, and returns the contents to the content identifier corresponding to CSG3 / CD3.

[0119] 本实施例中,CSG3/⑶3通过CR2和CR3获取内容分发请求消息,根据该内容分发请求消息中所包含的CSGl的标识信息,向该CSGl请求与该内容分发请求消息中所包含的内容标识对应的内容,从而使得CSG3/CD3能够获取CSGl发送的与内容标识对应的内容,实现了⑶3能够从其他未签约⑶N(⑶附)中的CSG(CSGl)获取⑶N3未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0119] In this embodiment, CSG3 / ⑶3 CR2, and CR3 by obtaining the content distribution request message, according to the identification information CSGl message included in the content distribution request, to the CSGl request to the content distribution request included in the message content identifier corresponding to the content, so that CSG3 / CD3 can acquire CSGL transmitted with the content identifier corresponding to the content, to achieve the ⑶3 capable of acquiring ⑶N3 unsigned CP from another unsigned ⑶N (⑶ attached) in the CSG (CSGl) / SP of content, whereby the content is delivered to the TM, solves the problem of the prior art CDN content CR in the CD can not be selected to deliver the requested TM unsigned CP / SP, to ensure normal operations.

[0120] 图7为本发明实施例七提供的内容获取方法的流程示意图,本实施例为上述本发明实施例一的另一个具体实施例,本实施例适用于⑶m中的CSGl预先向⑶N3中的CSG3/ CD3注入内容的场景。 Schematic flow chart of the content acquisition method according to a seventh embodiment previously ⑶N3 the [0120] present invention. FIG. 7, another embodiment of the present embodiment is an embodiment of the present invention, specific examples for ⑶m embodiment of the present embodiment CSGl the CSG3 / CD3 inject the contents of the scene. 如图7所示,本实施例的内容获取方法可以包括以下步骤: 7, the content acquisition method according to the present embodiment may include the steps of:

[0121] 步骤701、CRl向CR2发送内容分发请求消息,上述内容分发请求消息中包含内容标识和分发目的信息; [0121] Step 701, CRl CR2 transmits to the content distribution request message to the content distribution request message includes the identifier and the content distribution destination information;

[0122] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名;上述分发目的信息可以是CDN3的标识信息,还可以是区域3的标识信息,如区域3进一步划分为多个子域,还可以携带区域3的子域标识信息。 [0122] wherein, the content identifier may include, but is not limited to the following identification: file name, the domain name; and the distribution destination information may be identification information CDN3 may also be identification information of the region 3, such as 3 further divided regions into a plurality of sub-domains , sub-domains may also carry identification information area 3.

[0123] 可选地,上述内容分发请求消息中还可以包含⑶m的标识信息、CP/SP的标识信息、CSGl的标识信息中的至少一项。 [0123] Alternatively, the content delivery request message may further comprise identification information ⑶m, the identification information of CP / SP, the at least one identification information in CSGl. 其中,上述CSGl的标识信息可以包括但不限于以下信息:IP地址、域名。 Wherein the identification information of the CSGl may include but is not limited to the following information: IP address, the domain name. 具体地,上述内容分发请求消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, the content delivery request information contained in the message may be carried by a common field, for example: the URL, or may also be carried by separate fields, for example: a URL, XML elements or attributes, HTTP header field or several. 例如:通过一个URL携带上述信息:HTTP://CR2的标识信息/192. 168. 1. 1/ 分发目的信息/www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 1 代表CSGl 的标识信息,此处以IP为例,端口默认80,www. sina. com. cdnl. net代表OMl的标识信息和CP/SP 的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: HTTP:. // identification information of CR2 / 192 168. 1.1 / distribution destination information / www sina com cdnl net / video / a flv, wherein 192.168..... 1. CSGl 1 represents the identification information, the IP here as an example, the default port 80, www. sina. com. cdnl. net identification information representative of the identification information and OMl CP / SP of, a. flv behalf of the content identifier, this punishable by file name, for example, video / a. flv shows the content path. 如果CDm不希望暴露CP/SP的标识信息,则可以为HTTP: //CR2的标识信息/192. 168. 1. 1/分发目的信息/www. cdnl. net/video/a. flv。 If you do not want to expose identity information CDm CP / SP, you can think that HTTP:. // identification information of CR2 / 192 168. 1.1 / distribute informational purposes / www cdnl net / video / a flv.... 如果上述内容分发请求消息中同时不包含CSGl的标识信息,则可以为HTTP: //CR2的标识信息/分发目的信息/数cdnl. net/video/a. flv。 If the content delivery request message including identification information without the CSGl may be that HTTP: // CR2 identification information / distribution destination information / number cdnl net / video / a flv... 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0124] 需要说明的是:本步骤中,CRl可以根据预先设置的策略和签约信息,向CR2发送上述内容分发请求消息,或者还可以接收其他实体的请求之后,向CR2发送上述内容分发请求消息,本实施例对此不进行限制。 [0124] It should be noted that: In this step, CRl according to policy and subscription information set in advance, transmits the content to the CR2 distribution request message, or may also receive requests from other entities after the delivery of the content to the CR2 distribution request message , the present embodiment is not limited in this embodiment.

[0125] 可选地,本步骤不限于CRl向CR2发送上述内容分发请求消息,还可以是一个新的网元实体向CR2发送上述内容分发请求消息,本实施例对此不进行限制。 [0125] Alternatively, the present step is not limited to the above CRl CR2 transmits the distribution request message, may be a new network element entity transmits the content distribution request message to CR2, the present embodiment is not limited in this embodiment.

[0126] 步骤702、CR2根据获取的上述分发目的信息,选择CR3,向与所选择的CR3发送内容分发请求消息,上述内容分发请求消息中包含上述内容标识; [0126] Step 702, CR2 distribution destination information based on the acquired selection CR3, and transmits the selected CR3 content distribution request message, of the content delivery request message including the content identification;

[0127] 可选地,上述内容分发请求消息中还可以包含分发目的信息、上述CSGl的标识信息中的至少一项,上述分发目的信息可以是CDN3的标识信息,还可以是区域3的标识信息, 如区域3进一步划分为多个子域,还可以携带区域3的子域标识信息。 [0127] Alternatively, the content delivery request message may also comprise the distribution destination information, identification information of the at least one CSGl in the distribution destination information may be identification information CDN3 may also be identification information area 3 , such as 3 further divided into a plurality of sub-region domains, sub-domains may also carry identification information area 3.

[0128] 具体地,CR2可以对接收到的内容分发请求消息进行验证,例如:是否来自签约的CDN、请求是否合法等,验证通过之后,根据分发目的信息,选择适当的CR3,向所选择的CR3 转发上述内容分发请求消息。 [0128] Specifically, the content can CR2 received distribution request message to verify, for example: whether the CDN from a subscription, the request is legitimate and the like, after the verification is passed, depending on the distribution destination information, select the appropriate CR3, to the selected CR3 forwarding the content delivery request message. 其中,CR2在转发上述内容分发请求消息之前,CR2可以对接收到的内容分发请求消息进行修改。 Wherein, CR2 prior to forwarding the content delivery request message, CR2 can be received content distribution request message to be modified.

[0129] 可选地,CR2可以创建分发目的信息与CP/SP的标识信息和/或内容标识的映射关系,以供后续终端请求的路由。 [0129] Alternatively, CR2 is possible mapping between the identification information and the distribution destination information CP / SP and / or identification of the content to the terminal by routing subsequent requests.

[0130] 步骤703、CR3选择CSG3/⑶3,向所选择的CSG3/⑶3发送内容分发请求消息,上述内容分发请求消息中包含上述内容标识; [0130] Step 703, CR3 select CSG3 / ⑶3, to CSG3 / ⑶3 transmits the selected content distribution request message, of the content delivery request message including the content identification;

[0131] 具体地,CR3可以对接收到的内容分发请求消息进行验证,例如:是否来自签约的⑶N、请求是否合法等,验证通过之后,选择适当的CSG3/⑶3,向所选择的CSG3/⑶3转发上述内容分发请求消息。 SUMMARY [0131] In particular, CR3 can be received distribution request message to verify, for example: whether the contract from ⑶N, like request is legitimate, then validated by selecting the appropriate CSG3 / ⑶3, to the selected CSG3 / ⑶3 forwarding the content delivery request message. 其中,CR3在转发上述内容分发请求消息之前,CR3可以对接收到的内容分发请求消息进行修改。 Wherein, CR3 before forwarding the content delivery request message, CR3 can be received content distribution request message to be modified.

[0132] 步骤704、CSG3/⑶3向CR3返回内容分发响应消息; [0132] Step 704, CSG3 / ⑶3 CR3 distributing content to return a response message;

[0133] 可选地,上述内容分发响应消息中可以包含CSG3/⑶3的标识信息,上述CSG2/⑶2 的标识信息可以包括但不限于以下信息:IP地址、域名。 [0133] Alternatively, the content delivery response message may include identification information CSG3 / ⑶3, said identification information CSG2 / ⑶2 may include but is not limited to the following information: IP address, the domain name.

[0134] 需要说明的是:上述步骤703与步骤704是可选执行步骤。 [0134] Note that: the above-described step 703 and step 704 is an optional step.

[0135] 步骤705、CR3向CR2返回内容分发响应消息,上述内容分发响应消息中包含CSG3/ CD3的标识信息; [0135] Step 705, CR3 CR2 distribution returns a response message to the content, the content delivery response message containing identification information CSG3 / CD3 of;

[0136] 具体地,其中的CSG3/⑶3的标识信息可以是CR3从上述步骤704中的内容分发响应消息中获取的,或者还可以是CR3根据本地的配置信息获取的。 [0136] In particular, where the identification information CSG3 / ⑶3 CR3 may be distributed in the response message from the content acquired in step 704 above, or may be obtained according to CR3 local configuration information.

[0137] 可选地,上述内容分发响应消息中可以包含⑶N3的标识信息、上述内容标识中的至少一项。 [0137] Alternatively, the content delivery response message may include identification information ⑶N3 at least one of the content identifier. 例如:通过一个URL携带上述信息=HTTP ://CR2的标识信息/192. 168. 1. 3/ www. cdn3. net/video/a. flv,其中192. 168. 1. 3 代表CSG3/CD3 的标识信息,此处以IP 为例,www. cdn3. net代表⑶N3的标识信息,a. flv代表内容标识,此处以文件名为例,video/ a. flv表示了内容路径。 For example: by a URL carried in said information = HTTP:.... // identification information of CR2 / 192 168. 1. 3 / www cdn3 net / video / a flv, wherein 168. 1.3 192. Representative CSG3 / CD3 identification information, where to IP, for example, www. cdn3. net identification information ⑶N3 behalf of, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path.

[0138] 步骤706、CR2向CRl返回内容分发响应消息,上述内容分发响应消息中包含CSG3/ CD3的标识信息; [0138] Step 706, CR2 CRl distribution returns a response message to the content, the content delivery response message containing identification information CSG3 / CD3 of;

[0139] 可选地,上述内容分发响应消息中可以包含⑶N3的标识信息、上述内容标识中的 [0139] Alternatively, the content delivery response message may include identification information ⑶N3, said content identifier of

至少一项。 At least one.

[0140] 步骤707、CR1向CSGl发送内容分发通知消息,上述内容分发通知消息中包含上述CSG3/⑶3的标识信息和上述内容标识;[0141] 可选地,上述内容分发通知消息中可以包含⑶N3的标识信息。 [0140] Step 707, CR1 CSGl transmits a notification message to distribute the content, the content delivery notification message including the identification information CSG3 / ⑶3 and the content identifier; [0141] Alternatively, the content delivery notification message may include ⑶N3 the identification information.

[0142] 步骤708、CSG1根据上述CSG3/⑶3的标识信息和上述内容标识,向CSG3/⑶3发送与上述内容标识对应的内容; [0142] Step 708, CSG1 based on the identification information CSG3 / ⑶3 and the content identifier to CSG3 / ⑶3 the content identifier corresponding to the content transmission;

[0143] 步骤709、CSGl向CRl返回内容分发响应消息。 [0143] Step 709, CSGl returns a response message to the content distribution CRl.

[0144] 本实施例中,CSG3/⑶3通过CR2和CR3获取内容分发请求消息,向CRl返回CSG3/ CD3的标识信息,从而使得CSG3/CD3能够获取CSGl发送的与内容标识对应的内容,实现了⑶3能够从其他未签约⑶N(⑶m)中的CSG(CSGl)获取⑶N3未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0144] In this embodiment, CSG3 / ⑶3 acquires the content by CR2 and CR3 distribution request message, return the identification information CSG3 / CD3 to CRl, so that CSG3 / CD3 can acquire content with the content identifier corresponding to CSGl sent achieved ⑶3 can be obtained from other non-subscription ⑶N CSG (CSGl) in (⑶m) ⑶N3 content unsigned CP / SP, so that the content to be delivered (TM), CD solves the prior art in the CDN can not be selected to the CR SUMMARY TM delivery of the requested unsigned CP / SP, to ensure the normal conduct of business.

[0145] 图8为本发明实施例八提供的内容获取方法的流程示意图,本实施例为上述本发明实施例一的另一个具体实施例,本实施例适用于CDN3中的CD3获取来自TM的请求内容消息之后的CD3缓存没有命中(Cache miss)所触发的获取内容的场景。 [0145] FIG. 8 showing the method of the embodiment acquires the content provided by the eight embodiment of the present invention, the present embodiment is the embodiment of the present invention a particular embodiment a further embodiment, applicable to CDN3 embodiment of the present embodiment acquires from CD3 (TM) CD3 cache contents after the request message is not hit (cache miss) to obtain the content of the scene triggered. 如图8所示,本实施例的内容获取方法可以包括以下步骤: As shown, the present embodiment 8 acquisition method may include the steps of:

[0146] 步骤801、⑶3向CR3发送请求内容消息,上述请求内容消息中包含内容标识; [0146] Step 801, ⑶3 content transmission request message to CR3, to the request message includes the content of the content identifier;

[0147] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名。 [0147] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name.

[0148] 可选地,上述请求内容消息中还可以包含⑶m的标识信息、CP/SP的标识信息、 CD3的标识信息中的至少一项。 [0148] Optionally, the content request message may further comprise identification information of ⑶m, CP / SP identification information, the identification information of at least one of CD3. 其中,上述CD3的标识信息可以包括但不限于以下信息:IP 地址、域名。 Wherein the identification information of the CD3 may include but is not limited to the following information: IP address, the domain name. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如: URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息=HTTP ://CR3的标识信息/192. 168. 1. 3/www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 3代表CD3的标识信息,此处以IP为例,端口默认80,www. sina. com. cdnl. net代表CDNl的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in said information = HTTP:...... // identification information of CR3 / 192 168. 1. 3 / www sina com cdnl net / video / a flv, wherein 192. 168. 1.3 on behalf of the CD3 identification information, where to IP, for example, the default port 80, www. sina. com. cdnl. CDNl identification information identifying information represents the net and CP / SP of, a. flv on behalf of content identification, with the file name here embodiment, video / a. flv shows a content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0149] 步骤802、CR3向CR2发送请求内容消息,上述请求内容消息中包含上述内容标识; [0149] Step 802, CR3 sends a request message to the content CR2, the content of the above-described request message includes the content identifier;

[0150] 具体地,CR3在转发上述请求内容消息之前,CR3可以对接收到的请求内容消息进行修改,例如:增加CDN3的标识信息。 [0150] Specifically, CR3 content before forwarding it to the request message, the content request message may interface CR3 received modified, for example: increasing the identification information CDN3.

[0151] 步骤803、CR2向CRl发送上述请求内容消息; [0151] Step 803, CR2 transmits the request message to the content CRl;

[0152] 具体地,CR2可以根据获取的上述内容标识、CP/SP的标识信息中的至少一项,判断CDm中存在所请求的内容,向CRl发送上述请求内容消息。 [0152] In particular, according to the content identifier CR2 is acquired, the identification information CP / SP at least one, the content is determined in the presence of the requested CDm, transmits the request message to the content CRl.

[0153] 可选地,CR2在转发上述请求内容消息之前,CR2可以对接收到的请求内容消息进行修改,例如:增加CDN2的标识信息。 [0153] Alternatively, the above-described CR2 is before forwarding the request message content, you may interface CR2 is received request message to modify the content, for example: increasing the identification information CDN2.

[0154] 需要说明的是:本步骤是通过CR3、CR2代理⑶3向CRl请求来实现请求内容的,可替换地,本步骤还可以通过CR3、CR2重定向⑶3的请求到CRl来实现请求内容,此处不再赘述。 [0154] It should be noted that: This step is CR3, CR2 ⑶3 agent to achieve the requested content to the request by CRl, alternatively, this step can also CR3, CR2 ⑶3 redirect request to request content CRl achieved, not repeat them here.

[0155] 步骤804、CR1向CR2返回请求响应消息,上述请求响应消息中包含所选择的CSGl 的标识信息和上述内容标识; [0155] Step 804, CR1 request response message returned to CR2, in response to the request identification information and said contents CSGl message containing the selected identifier;

[0156] 其中,上述CSGl的标识信息可以包括但不限于以下信息:IP地址、域名。 [0156] wherein the identification information of the CSGl may include but is not limited to the following information: IP address, the domain name. [0157] 步骤805、CR2向CR3返回上述请求响应消息; [0157] Step 805, CR2 CR3 to return a response message to the request;

[0158] 步骤806、CR3向⑶3返回请求响应消息,上述请求响应消息中包含上述CSGl的标识信息和上述内容标识; [0158] Step 806, CR3 request response message returned to ⑶3, in response to the above request message includes identification information of the CSGl and the content identifier;

[0159] 步骤807、⑶3根据获取的CSGl的标识信息,向CSGl发送请求内容消息,上述请求内容消息中包含上述内容标识; [0159] Step 807, ⑶3 CSGL according to the identification information acquired, and transmits the content request message to CSGL, the content of the above-described request message includes the content identifier;

[0160] 步骤808、CSGl根据上述内容标识,向CD3返回与上述内容标识对应的内容。 [0160] Step 808, CSGl according to the content identifier, and return the content to the content identifier corresponding to CD3.

[0161] 本实施例中,CD3获取来自TM的请求内容消息,如果缓存没有命中,可以通过CR3、 CR2向CRl请求与该请求内容消息中所包含的内容标识对应的内容,进一步根据获取的CRl 所返回的CSGl的标识信息,向该CSGl请求与该请求内容消息中所包含的内容标识对应的内容,从而使得CD3能够获取CSGl发送的与内容标识对应的内容,实现了CD3能够从其他未签约CDN(OMl)中的CSG(CSGl)获取CDN3未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0161] In this embodiment, CD3 acquisition request content message from the TM, if a cache miss, can be CR3, CR2 requested content and the requested content included in the message identifier corresponding to the content to CRl, further accordance CRl acquired CSGl identification information being returned to the CSGl requested content requested content identifier included in the message corresponding to the content so that the content can be acquired CD3 identifier corresponding to the content transmission CSGl, CD3 can be achieved from other unsigned CDN (OML) of the CSG (CSGl) Get an unsigned content CDN3 CP / SP, thereby to deliver the content to the TM, the prior art does not solve the CDN CR selected CD can not be delivered to the requested TM signed content CP / SP of the problem, to ensure the normal conduct of business.

[0162] 图9为本发明实施例九提供的内容获取方法的流程示意图,本实施例为上述本发明实施例一的另一个具体实施例,本实施例适用于CDN3中的CD3获取来自TM的请求内容消息之后的缓存没有命中(Cache miss)所触发的获取内容的场景。 [0162] FIG. 9 acquires a schematic flowchart of a method of providing content according to a ninth embodiment of the invention, an embodiment of another embodiment of the present embodiment is the embodiment of the present invention, embodiments applicable to the present embodiment CDN3 in CD3 acquired from the TM a cache miss (cache miss) to obtain the content of the scene triggered after the request content of the message. 如图9所示,本实施例的内容获取方法可以包括以下步骤: As shown, the present embodiment 9 acquisition method may include the steps of:

[0163] 步骤901、⑶3向CR3发送请求内容消息,上述请求内容消息中包含内容标识; [0163] Step 901, ⑶3 content transmission request message to CR3, to the request message includes the content of the content identifier;

[0164] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名。 [0164] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name.

[0165] 可选地,上述请求内容消息中还可以包含⑶附的标识信息、CP/SP的标识信息、 CD3的标识信息中的至少一项。 [0165] Optionally, the content request message may further comprise identification information appended ⑶, CP / SP identification information, the identification information of at least one of CD3. 其中,上述CD3的标识信息可以包括但不限于以下信息:IP 地址、域名。 Wherein the identification information of the CD3 may include but is not limited to the following information: IP address, the domain name. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如: URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息=HTTP ://CR3的标识信息/192. 168. 1. 3/www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 3代表CD3的标识信息,此处以IP为例,端口默认80,www. sina. com. cdnl. net代表CDNl的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in said information = HTTP:...... // identification information of CR3 / 192 168. 1. 3 / www sina com cdnl net / video / a flv, wherein 192. 168. 1.3 on behalf of the CD3 identification information, where to IP, for example, the default port 80, www. sina. com. cdnl. CDNl identification information identifying information represents the net and CP / SP of, a. flv on behalf of content identification, with the file name here embodiment, video / a. flv shows a content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0166] 步骤902、CR3向CR2发送请求内容消息,上述请求内容消息中包含⑶3的标识信息和上述内容标识; [0166] Step 902, CR3 sends a request message to the content CR2, the content of the above-described request message includes the identification information and the content identifier ⑶3;

[0167] 具体地,其中的⑶3的标识信息可以是CR3从上述步骤901中的请求内容消息中获取的,或者还可以是CR3根据本地的配置信息获取的。 [0167] Specifically, the identification information which may be CR3 ⑶3 from the above-described step 901 the contents request message acquired, or may be obtained according to CR3 local configuration information.

[0168] 具体地,CR3在转发上述请求内容消息之前,CR3可以对接收到的请求内容消息进行修改,例如:增加CDN3的标识信息。 [0168] Specifically, CR3 content before forwarding it to the request message, the content request message may interface CR3 received modified, for example: increasing the identification information CDN3.

[0169] 步骤903、CR2向CRl发送上述请求内容消息; [0169] Step 903, CR2 transmits the request message to the content CRl;

[0170] 具体地,CR2可以根据获取的上述内容标识、CP/SP的标识信息中的至少一项,判断CDm中存在所请求的内容,向CRl发送上述请求内容消息。 [0170] In particular, according to the content identifier CR2 is acquired, the identification information CP / SP at least one, the content is determined in the presence of the requested CDm, transmits the request message to the content CRl.

[0171] 需要说明的是:本步骤为CR3、CR2代理⑶3向CRl请求来实现请求内容的,可替换地,本步骤还可以通过CR3、CR2重定向⑶3的请求到CRl来实现请求内容,此处不再赘述。 [0171] It should be noted that: This step is CR3, CR2 ⑶3 agent to achieve CRl request requesting the content, alternatively, this step can also CR3, CR2 ⑶3 redirect request to request content CRl achieved, this at not repeat them. [0172] 步骤904、CR1向CSGl发送内容分发通知消息,上述内容分发通知消息中包含上述CD3的标识信息和上述内容标识; [0172] Step 904, CR1 sends CSGl content delivery notification message, the content delivery notification message includes the identification information of the CD3 and the content identifier;

[0173] 可选地,上述内容分发通知消息中可以包含⑶N3的标识信息。 [0173] Alternatively, the content delivery notification message may include identification information of ⑶N3.

[0174] 步骤905、CSGl根据上述⑶3的标识信息和上述内容标识,向⑶3返回与上述内容标识对应的内容。 [0174] Step 905, CSGl ⑶3 according to the identification information of the content identifier and said returned content corresponding to the content identifier to ⑶3.

[0175] 本实施例中,⑶3获取来自TM的请求内容消息,如果缓存没有命中,可以通过CR3、 CR2向CRl请求与该请求内容消息中所包含的内容标识对应的内容,同时向CRl发送⑶3的标识信息,从而使得CD3能够获取CSGl发送的与内容标识对应的内容,实现了CD3能够从其他未签约⑶N (⑶附)中的CSG(CSGl)获取⑶N3未签约CP/SP的内容,从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/ SP的内容的问题,保证了业务的正常进行。 [0175] In this embodiment, ⑶3 acquisition request content message from the TM, if a cache miss, can be CR3, CR2 requested content identifier corresponding to the request content included in the message content to CRl, simultaneously transmits ⑶3 to CRl identification information, so that the CD3 possible to acquire the content to the content identifier corresponding to CSGL transmitted realized CD3 capable of acquiring content ⑶N3 unsigned CP / SP from other unsigned ⑶N CSG (CSGl) (⑶ attached), thereby to TM to deliver the contents to solve the problems of the prior art CDN content in the selected CD CR unable to deliver the requested TM unsigned CP / SP, to ensure the normal conduct of business.

[0176] 进一步地,在部署本发明实施例所涉及的网络架构时,⑶N中的⑶可以进一步采用分层部署,例如:一般在城域网部署多个CD域,其中每个CD域内可以有多个CD,一个或者多个从交付控制实体(即子CR中的交付控制实体),同时还提供一个主CR交付控制实体(即全局CR中的交付控制实体),对多个⑶域进行统一管理与控制。 [0176] Furthermore, when deploying a network architecture according to a embodiment of the present invention, ⑶N ⑶ the deployment may further stratified, for example: CD plurality of domains typically deployed in metropolitan area, where each region can have CD a plurality of the CD, the one or more delivery from the control entity (i.e., in the sub-CR delivery control entity), while also providing a CR main delivering controlling entity (i.e., delivered in the global control entity CR), a plurality of domains uniformly ⑶ management and control. 类似地,⑶N中的CSG 也可以采用分层部署,此处不再赘述。 Similarly, ⑶N in a CSG may be deployed stratified, is not repeated here. 采用分层部署之后,上述本发明实施例二至本发明实施例九中所涉及的第二⑶N中的CR(CR2或CR3),均可以包括第二⑶N中的主CR和该主CR 所选择的第二CDN中的子CR,具体可以是主CR先接收请求或响应,然后选择子CR并转发给子CR进行处理。 After stratified deployment, according to a second embodiment of the present invention to the embodiment of the present invention, in the second embodiment ⑶N nine involved in the CR (CR2 is or CR3), each may include a main ⑶N the second main CR CR and the selected a second sub-CR CDN in particular may be a master or CR in response to receiving the request, then select and forward to the sub-sub-CR CR processing. 类似地,上述本发明实施例六至本发明实施例九中所涉及的第三CDN中的CR(CR2)可以包括第三⑶N中的主CR和该主CR所选择的第三⑶N中的子CR,具体可以是主CR先接收请求或响应,然后选择子CR并转发给子CR进行处理。 Similarly, according to a sixth embodiment of the present invention to the embodiment of the present invention, a third embodiment of a CDN according to the nine CR (CR2 is) can comprise a third sub-master ⑶N third ⑶N of CR and CR of the selected main in CR, CR particular may be a primary or response to receiving the request, then select and forward to the sub-sub-CR CR processing.

[0177] 图10为本发明实施例十提供的内容交付方法的流程示意图,如图10所示,本实施例的内容交付方法可以包括以下步骤: [0177] Figure 10 provides a schematic flow diagram of the content delivery method of Embodiment 10 of the present embodiment of the invention, shown in Figure 10, content delivery method according to the present embodiment may include the steps of:

[0178] 步骤1001、第一CDN中的CR获取来自TM的内容请求,用以请求与内容标识对应的内容,上述第一⑶N与CP/SP签约,以使上述第一⑶N从上述CP/SP获取所述内容; [0178] Step 1001, the first CDN content acquisition request from the CR (TM), for requesting content corresponding to the content identifier, and the first ⑶N CP / SP contract, so that the first ⑶N from the CP / SP obtaining the content;

[0179] 步骤1002、上述第一⑶N中的CR根据交付策略,向上述TM发送第二⑶N中的CR 或第二⑶N中的⑶的标识信息,以使上述TM向第二⑶N中的⑶请求与上述内容标识对应的内容。 [0179] Step 1002, the first CR in ⑶N delivery strategy according to the identification information of the second transmission TM ⑶N the CR or the second ⑶N of ⑶, so that the request to a second TM in ⑶ ⑶N content corresponding to the content identifier.

[0180] 其中,第二⑶N可以与第一⑶N签约,第一⑶N中的CR可以直接向请求内容的TM 返回第二CDN中的CR或第二CDN中的CD的标识信息(详细描述可以参见下述本发明实施例^^一、本发明实施例十二);或者,第一⑶N中的CR还可以通过第三⑶N中的CR向请求内容的TM返回第二CDN中的CR或第二CDN中的CD的标识信息(详细描述可以参见下述本发明实施例十三、本发明实施例十四)。 [0180] wherein the first and second subscription may ⑶N ⑶N, the first ⑶N CR may return the second identification information in the CDN or CR second CD in the CDN request directly to the content of TM (detailed description can be found in the following embodiment of the present invention a ^ ^, twelfth embodiment) of the present invention; Alternatively, the first ⑶N second CR may also return to the CDN CR TM ⑶N requested content by the third or the second CR CD identification information in the CDN (the detailed description of the embodiments, reference may be thirteen embodiment of the invention described below, embodiment 14 of the present invention).

[0181] 其中,第一CDN中的CR可以根据设置的交付策略,确定该请求内容消息需要由第二CDN提供服务。 [0181] wherein, in the first CR CDN can deliver policy settings, it is determined that the requested content from the second message to be serviced CDN. 例如:基于TM的位置、时间、成本等因素的策略,需要由第二CDN提供服务。 For example: Policy TM factors of location, time, cost-based, need to be serviced by the second CDN.

[0182] 本实施例中,第一CDN中的CR获取到来自TM的内容请求之后,根据设置的交付策略,向该TM发送第二⑶N中的CR或第二⑶N中的⑶的标识信息,从而使得该TM能够向第二CDN中的CD请求与上述内容标识对应的内容,实现了TM可以获取其他CDN中的CD所交付的CP/SP的内容,保证了业务的正常进行。 [0182] In the present embodiment, the identification information, after the first in the CDN content acquired from CR (TM) request, in accordance with the policy settings to deliver, to the second transmission TM ⑶N the CR or the second ⑶N ⑶ of so that the TM is capable of requesting content corresponding to the content identifier to the second CD in the CDN, content may be obtained to achieve a TM CP / SP in the other CD CDN delivered, to ensure the normal operations.

[0183] 本发明实施例可以假设⑶m覆盖区域1,⑶N2覆盖区域2,CP/SP希望在区域1 和区域2为TM提供服务,但CP/SP只与⑶m签约(即CSGl能够从CP/SP的内容源获取内容),⑶m与⑶N2签约。 [0183] Embodiments of the invention may be assumed ⑶m coverage area 1, ⑶N2 coverage area 2, CP / SP want to provide services to the TM region 1 and region 2, the CP / SP only and ⑶m subscription (i.e. CSGl can be from the CP / SP the content source access to content), ⑶m and ⑶N2 contract. 下面将通过本发明实施例十一和本发明实施例十二进一步详细说明上述本发明实施例十的技术方案。 The following Examples XI and embodiments of the invention by the embodiment of the present invention, twelve technical solutions of the present embodiment ten invention in further detail.

[0184] 图11为本发明实施例十一提供的内容交付方法的流程示意图,本实施例为上述本发明实施例十的一个具体实施例。 [0184] Figure 11 provides a schematic flow diagram of the content delivery method according to an eleventh embodiment of the invention, the present embodiment ten to implement one embodiment of the present invention to specific embodiments. 如图11所示,本实施例的内容交付方法可以包括以下步骤: As shown, the present embodiment 11 delivery method may comprise the steps of:

[0185] 步骤1101、TM向域名服务器(Domain Name Server,简称DNQ 1发送DNS请求消息; [0185] Step 1101, TM request message to a domain name server (Domain Name Server, referred to as DNQ 1 transmits the DNS;

[0186] 其中,DNSl服务器作为该CP/SP指定域名的授权DNS。 [0186] wherein, DNSl authoritative DNS server as the CP / SP specified domain. 具体地,TM请求业务时触发DNS解析过程,DNS解析过程可以参见现有技术中的相关内容,此处不再赘述。 Specifically, it triggered TM requests a service DNS resolution process, DNS resolution process can be found in the prior art related content, is not repeated here. 这里ram 的DNS服务器作为该CP指定域名的授权DNS服务器。 Here ram DNS server designated as the CP domain of the authoritative DNS server.

[0187] 步骤1102、DNS1向TM返回DNS响应消息,上述DNS响应消息中包含CRl的标识信息; [0187] Step 1102, DNS1 DNS response message returned to the TM, the above DNS response message includes identification information of CRl;

[0188] 需要说明的是:上述步骤1101与步骤1102是可选执行步骤。 [0188] Note that: the above-described step 1101 to step 1102 is an optional step.

[0189] 步骤1103、TM根据获取的CRl的标识信息,向CRl发送请求内容消息,上述请求内容消息中包含内容标识; [0189] Step 1103, TM CRl according to the identification information acquired, and transmits the content request message to CRl, the content of the above-described request message includes the content identifier;

[0190] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名。 [0190] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name.

[0191] 可选地,上述请求内容消息中还可以包含⑶m的标识信息、CP/SP的标识信息中的至少一项。 [0191] Optionally, the content request message may further comprise identification information ⑶m, the identification information of the at least one CP / SP in. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息:HTTP://CR1的标识信息/www. sina. com. cdnl. net/video/a. flv,其中,www. sina. com. cdnl. net 代表CDNl 的标识信息和CP/SP 的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: HTTP::......... // identification information of CR1 / www sina com cdnl net / video / a flv, wherein, www sina com cdnl net CDNl representative of a URL identification information carried by said information and identification information CP / SP of, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path. 上述以HTTP 为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0192] 步骤1104、CRl根据设置的交付策略,确定上述请求内容消息由⑶N2处理,向TM 返回请求响应消息,上述请求响应消息中包含CR2的标识信息和上述内容标识; [0192] Step 1104, CRl delivered according to the set policy, the content of the request message is determined by the above-described processing ⑶N2, in response to the request message TM returns the request response message includes the identification information and the content identifier of CR2;

[0193] 具体地,本步骤中,CRl可以根据设置的交付策略,确定该请求内容消息需要由CDN2提供服务。 [0193] Specifically, in this step, may be delivered CRl policy settings to determine the content of the request message by the need to provide services CDN2. 例如:基于TM的位置、时间、成本等因素的策略,需要由CDN2提供服务。 For example: Policy TM factors of location, time, cost-based, need to be serviced by CDN2.

[0194] 可选地,上述请求响应消息中还可以包含⑶m的标识信息、CRl的标识信息、CP/ SP的标识信息中的至少一项。 [0194] Optionally, the request response message may also contain information identifying the ⑶m, CRl identification information, identification information of the CP / SP at least one. 其中,上述CRl的标识信息可以包括但不限于以下信息:IP 地址、域名,以供当缓存没有命中时,向CRl请求CSGl的标识信息。 Wherein the identification information of the CRl may include but is not limited to the following information: IP address, domain name, for when a cache miss, the request identifying information CSGl CRl. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息:HTTP://CR2 的标识信息/CRl 的标识信息/www. sina. com. cdnl. net/video/a. flv, 其中,www. sina. com. cdnl. net代表OMl的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: HTTP:........ // CR2 identification information of identification information / CRl is / www sina com cdnl net / video / a flv, wherein, www sina com cdnl net. representatives OMl identification information and CP / SP identification information, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment. [0195] 需要说明的是:本步骤为通过CRl重定向TM的请求到CR2来实现请求内容。 [0195] It should be noted that: This is a step by requesting to the TM CR2 CRl redirect request content is achieved.

[0196] 步骤1105、TM根据获取的CR2的标识信息,向CR2发送请求内容消息,上述请求内容消息中包含上述内容标识; [0196] Step 1105, TM according to the identification information acquired CR2, CR2 sends a request message to the content, the content of the above request message includes the content identifier;

[0197] 步骤1106、CR2选择⑶2,向TM返回请求响应消息,上述请求响应消息中包含所选择的CD2的标识信息和上述内容标识; [0197] Step 1106, CR2 selected ⑶2, returns the request response message to the TM, in response to the request identification information and said CD2 content in the message containing the selected identifier;

[0198] 其中,上述⑶2的标识信息可以包括但不限于以下信息:IP地址、域名。 [0198] wherein the identification information of the ⑶2 may include but is not limited to the following information: IP address, the domain name.

[0199] 可选地,上述请求响应消息中还可以包含⑶附的标识信息、CP/SP的标识信息中的至少一项。 [0199] Optionally, the request response message may further comprise identification information appended ⑶, identification information of the at least one CP / SP in. 具体地,上述请求响应消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, in response to the request message contained in the message may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes of one or a few, HTTP header field item. 例如:通过一个URL 携带上述信息=HTTP://192. 168. 1. 2/www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 2代表CD2的标识信息,此处以IP为例,端口默认80, www. sina. com. cdnl. net代表OMl的标识信息和CP/SP的标识信息,a. flv代表内容标识, 此处以文件名为例,video/a. flv表示了内容路径。 For example: carrying the above information through a = HTTP URL:..... // 192 168. 1. 2 / www sina com cdnl net / video / a flv, 192. 168. 1.2 wherein information representative of the identification of CD2. here the IP, for example, the default port 80, www. sina. com. cdnl. OMl identification information identifying information represents the net and CP / SP of, a. flv on behalf of content identification, where the file name, for example, video / a . flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0200] 具体地,本步骤中的CR2可以根据⑶的负载状态和/或设置的交付策略(例如: 基于TM的位置、CP/SP的内容与⑶的对应关系等因素的策略),选择合适的⑶2。 [0200] Specifically, in this step CR2 can ⑶ load state and / or arrangements delivery policy (e.g.: policy factors based on the position (TM), the CP / correspondence relationship between content ⑶ an SP, etc.), select the appropriate the ⑶2.

[0201 ] 步骤1107、TM根据获取的⑶2的标识信息,向⑶2发送请求内容消息,上述请求内容消息中包含上述内容标识; [0201] Step 1107, TM ⑶2 according to the identification information acquired, sends a request message to ⑶2 content, the content of the above-described request message includes the content identifier;

[0202] 步骤1108、⑶2根据上述内容标识,向TM返回与上述内容标识对应的内容。 [0202] Step 1108, ⑶2 according to the content identifier, and return the content to the content identifier corresponding to the TM.

[0203] 具体地,本步骤中的⑶2可以预先通过上述本发明实施例二和本发明实施例三获取上述TM所请求的内容,具体描述可以参见上述本发明实施例二和本发明实施例三中的相关内容,此处不再赘述;或者还可以通过上述本发明实施例四和本发明实施例五获取上述TM所请求的内容,具体描述可以参见上述本发明实施例四和本发明实施例五中的相关内容,此处不再赘述。 [0203] Specifically, in this step ⑶2 may be predetermined according to the second and the present invention according to a third acquiring contents of TM requested embodiment by the above-described present invention, the detailed description can be found of the present invention according to the second and the present invention embodiments Example Three the content is not repeated here; or else according to a fourth and fifth embodiment of the present invention the above-described TM acquires the content requested by the embodiment of the present invention can be specifically described with reference may be made according to a fourth embodiment of the present invention and the above-described embodiments of the present invention, Fifth relevant content, not repeat them here.

[0204] 本实施例中,CRl获取到来自TM的内容请求之后,根据设置的交付策略,向该TM发送CR2的标识信息,从而使得该TM能够通过CR2向⑶2请求与上述内容标识对应的内容, 实现了TM可以获取其他⑶N(⑶拟)中的⑶(⑶幻所交付的未签约CP/SP的内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行,保证了业务的正常进行。 [0204] In this embodiment, after the content acquired from CRl TM requests, delivery according to the policy settings, CR2 transmits the identification information to the TM, so that the TM is capable of requesting content corresponding to the content identifier through CR2 to ⑶2 achieved TM can obtain additional ⑶N (⑶ intended) contents ⑶ (⑶ phantom delivered unsigned CP / SP solves the prior art CD CDN is selected CR can not be delivered to the requested TM CP / SP contents unsigned issues, to ensure the normal conduct of business, to ensure the normal conduct of business.

[0205] 图12为本发明实施例十二提供的内容交付方法的流程示意图,本实施例为上述本发明实施例十的另一个具体实施例。 [0205] FIG 12 a schematic flowchart of a content delivery method according to the present embodiment of the invention provides twelve, another embodiment of the present embodiment ten embodiment of the present invention to specific embodiments. 如图12所示,本实施例的内容交付方法可以包括以下步骤: As shown, the present embodiment 12 delivery method may comprise the steps of:

[0206] 步骤1201、TM向DNSl发送DNS请求消息; [0206] Step 1201, TM sends a DNS request message to the DNSl;

[0207] 其中,DNSl服务器作为该CP/SP指定域名的授权DNS。 [0207] wherein, DNSl authoritative DNS server as the CP / SP specified domain. 具体地,TM请求业务时触发DNS解析过程,DNS解析过程可以参见现有技术中的相关内容,此处不再赘述。 Specifically, it triggered TM requests a service DNS resolution process, DNS resolution process can be found in the prior art related content, is not repeated here. 这里⑶附的DNS服务器作为该CP指定域名的授权DNS服务器。 Here ⑶ attached DNS server designated as the CP domain of the authoritative DNS server.

[0208] 步骤1202、DNSl向TM返回DNS响应消息,上述DNS响应消息中包含CRl的标识信息; [0208] Step 1202, DNSl DNS response message returned to the TM, the above DNS response message includes identification information of CRl;

[0209] 需要说明的是:上述步骤1201与步骤1202是可选执行步骤。 [0209] Note that: the above-described step 1201 to step 1202 is an optional step.

21[0210] 步骤1203、TM根据获取的CRl的标识信息,向CRl发送请求内容消息,上述请求内容消息中包含内容标识; 21 [0210] Step 1203, TM CRl according to the identification information acquired, sends a request message to CRl content, the content request message includes the above-described content identifier;

[0211] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名。 [0211] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name.

[0212] 可选地,上述请求内容消息中还可以包含⑶m的标识信息、CP/SP的标识信息中的至少一项。 [0212] Optionally, the content request message may further comprise identification information ⑶m, the identification information of the at least one CP / SP in. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息:HTTP://CR1的标识信息/www. sina. com. cdnl. net/video/a. flv,其中,www. sina. com. cdnl. net 代表CDNl 的标识信息和CP/SP 的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: HTTP::......... // identification information of CR1 / www sina com cdnl net / video / a flv, wherein, www sina com cdnl net CDNl representative of a URL identification information carried by said information and identification information CP / SP of, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path. 上述以HTTP 为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0213] 步骤1204、CR1根据设置的交付策略,确定上述请求内容消息由⑶N2处理,向CR2 发送请求内容消息,上述请求内容消息中包含内容标识; [0213] Step 1204, CR1 delivered according to the set policy, determines the content of the request message is processed by the above-described ⑶N2, CR2 transmits the content request message, the above-described content includes content identification request message;

[0214] 具体地,本步骤中,CRl可以根据设置的交付策略,确定该请求内容消息需要由CDN2提供服务。 [0214] Specifically, in this step, may be delivered CRl policy settings to determine the content of the request message by the need to provide services CDN2. 例如:基于TM的位置、时间、成本等因素的策略,需要由CDN2提供服务。 For example: Policy TM factors of location, time, cost-based, need to be serviced by CDN2.

[0215] 可选地,上述请求内容消息中还可以包含⑶m的标识信息、CP/SP的标识信息中的至少一项。 [0215] Optionally, the content request message may further comprise identification information ⑶m, the identification information of the at least one CP / SP in. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息:HTTP://CR2的标识信息/www. sina. com. cdnl. net/video/a. flv,其中,www. sina. com. cdnl. net 代表CDNl 的标识信息和CP/SP 的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: HTTP:......... // identification information of CR2 / www sina com cdnl net / video / a flv, wherein, www sina com cdnl net identification information representative of CDNl and identification information CP / SP of, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path. 上述以HTTP 为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0216] 步骤1205、CR2选择⑶2,向CRl返回请求响应消息,上述请求响应消息中包含所选择的CD2的标识信息和上述内容标识; [0216] Step 1205, CR2 selected ⑶2, returns the request response message to CRl, in response to the request identification information and said CD2 content in the message containing the selected identifier;

[0217] 其中,上述⑶2的标识信息可以包括但不限于以下信息:IP地址、域名。 [0217] wherein the identification information of the ⑶2 may include but is not limited to the following information: IP address, the domain name.

[0218] 可选地,上述请求响应消息中还可以包含⑶附的标识信息、CP/SP的标识信息中的至少一项。 [0218] Optionally, the request response message may further comprise identification information appended ⑶, identification information of the at least one CP / SP in. 具体地,上述请求响应消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, in response to the request message contained in the message may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes of one or a few, HTTP header field item. 例如:通过一个URL 携带上述信息=HTTP://192. 168. 1. 2/www. sina. com. cdnl. net/video/a. flv,其中192. 168. 1. 2代表CD2的标识信息,此处以IP为例,端口默认80, www. sina. com. cdnl. net代表OMl的标识信息和CP/SP的标识信息,a. flv代表内容标识, 此处以文件名为例,video/a. flv表示了内容路径。 For example: carrying the above information through a = HTTP URL:..... // 192 168. 1. 2 / www sina com cdnl net / video / a flv, 192. 168. 1.2 wherein information representative of the identification of CD2. here the IP, for example, the default port 80, www. sina. com. cdnl. OMl identification information identifying information represents the net and CP / SP of, a. flv on behalf of content identification, where the file name, for example, video / a . flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0219] 具体地,本步骤中的CR2可以根据⑶的负载状态和/或设置的交付策略(例如: 基于TM的位置、CP/SP的内容与⑶的对应关系等因素的策略),选择合适的⑶2。 [0219] Specifically, in this step CR2 can ⑶ load state and / or arrangements delivery policy (e.g.: policy factors based on the position (TM), the CP / correspondence relationship between content ⑶ an SP, etc.), select the appropriate the ⑶2.

[0220] 步骤1206、CRl向TM返回请求响应消息,上述请求响应消息中包含上述⑶2的标识信息和上述内容标识; [0220] Step 1206, CRl request response message returned to the TM, the above-described request response message includes identification information of the ⑶2 and the content identifier;

[0221 ] 可选地,上述请求响应消息中还可以包含⑶m的标识信息、CRl的标识信息、CP/ SP的标识信息中的至少一项。 [0221] Optionally, the request response message may also contain information identifying the ⑶m, CRl identification information, identification information of the CP / SP at least one. 其中,上述CRl的标识信息可以包括但不限于以下信息:IP 地址、域名,以供当缓存没有命中时,向CRl请求CSGl的标识信息。 Wherein the identification information of the CRl may include but is not limited to the following information: IP address, domain name, for when a cache miss, the request identifying information CSGl CRl. 具体地,上述请求响应消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, in response to the request message contained in the message may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes of one or a few, HTTP header field item. 例如:通过一个URL携带上述信息:ΗΤΤΡ://192· 168. 1. 2/CR1 的标识信息/www. sina. com. cdnl. net/video/a. flv,其中,192. 168. 1. 2代表CD2的标识信息,此处以IP为例,端口默认80 ;www. sina. com. cdnl. net代表CDm的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例, video/a. flv表示了内容路径。 For example: by a URL carried in the above information: ΗΤΤΡ:.... // identification information 192 · 168. 1. 2 / CR1 is / www sina com cdnl net / video / a flv, wherein 192 168.1... 2 represents CD2 identification information, where to IP, for example, the default port 80;..... www sina com cdnl identification information for identifying information on behalf of CDm net and CP / SP's, a flv behalf of the content identifier, the file name here for example, video / a. flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0222] 步骤1207、TM根据获取的⑶2的标识信息,向⑶2发送请求内容消息,上述请求内容消息中包含上述内容标识; [0222] Step 1207, TM ⑶2 according to the identification information acquired, sends a request message to ⑶2 content, the content of the above-described request message includes the content identifier;

[0223] 步骤1208、⑶2根据上述内容标识,向TM返回与上述内容标识对应的内容。 [0223] Step 1208, ⑶2 according to the content identifier, and return the content to the content identifier corresponding to the TM.

[0224] 具体地,本步骤中的⑶2可以预先通过上述本发明实施例二和本发明实施例三获取上述TM所请求的内容,具体描述可以参见上述本发明实施例二和本发明实施例三中的相关内容,此处不再赘述;或者还可以通过上述本发明实施例四和本发明实施例五获取上述TM所请求的内容,具体描述可以参见上述本发明实施例四和本发明实施例五中的相关内容,此处不再赘述。 [0224] Specifically, in this step ⑶2 may be predetermined according to the second and the present invention according to a third acquiring contents of TM requested embodiment by the above-described present invention, the detailed description can be found of the present invention according to the second and the present invention embodiments Example Three the content is not repeated here; or else according to a fourth and fifth embodiment of the present invention the above-described TM acquires the content requested by the embodiment of the present invention can be specifically described with reference may be made according to a fourth embodiment of the present invention and the above-described embodiments of the present invention, Fifth relevant content, not repeat them here.

[0225] 本实施例中,CRl获取到来自TM的内容请求之后,根据设置的交付策略,通过CR2 向该TM发送CD2的标识信息,从而使得该TM能够向CD2请求与上述内容标识对应的内容, 实现了TM可以获取其他⑶N(⑶拟)中的⑶(⑶幻所交付的未签约CP/SP的内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行,保证了业务的正常进行。 [0225] In this embodiment, after obtaining the content from CRl TM requests, delivery according to the policy settings, CD2 transmission TM through CR2 to the identification information, so that the TM is capable of requesting content corresponding to the content identifier to the CD2 achieved TM can obtain additional ⑶N (⑶ intended) contents ⑶ (⑶ phantom delivered unsigned CP / SP solves the prior art CD CDN is selected CR can not be delivered to the requested TM CP / SP contents unsigned issues, to ensure the normal conduct of business, to ensure the normal conduct of business.

[0226] 进一步地,上述本发明实施例i^一和本发明实施例十二还可以进一步包括下述步骤: [0226] Furthermore, embodiments of the present invention and i ^ a twelfth embodiment of the present invention may further comprise the steps of:

[0227] ⑶2向CRl和/或CR2上报内容分发的信息和/或内容交付的信息,以及CR2向CRl上报内容分发的信息和/或内容交付的信息。 [0227] ⑶2 reporting information and / or content delivery distribution of content to CRl and / or CR2, CR2 and reporting information and / or content delivery distribution of content to CRl. 具体实现可以是⑶2向⑶m和/或⑶N2 的网络运营中心(Network Operation Center,简称NoC)上报,以及CR2向CDNl的NoC,上报此处不再赘述 Specific implementation can be reported to the ⑶m ⑶2 and Network Operations Center / or ⑶N2's (Network Operation Center, referred NoC), and CR2 to NoC CDNl, the report will not repeat them here

[0228] 可选地,本发明实施例还可以假设⑶附覆盖区域1,⑶N2覆盖区域2,⑶N3覆盖区域3,CP/SP希望在区域1、区域2和区域3为TM提供服务,但CP/SP只与⑶附签约(即CSGl能够从CP/SP的内容源获取内容),⑶m与⑶N2签约,⑶N2与⑶N3签约。 [0228] Alternatively, embodiments of the present invention may also be assumed that the coverage area of ​​attachment ⑶ 1, ⑶N2 coverage area 2, ⑶N3 coverage area 3, CP / SP desired 1, region 2 and region 3 in the region of the TM service, but CP / SP ⑶ attached only to contract (i.e. CSGl can obtain content from the CP / SP content source), ⑶m signed with ⑶N2, ⑶N2 with ⑶N3 signed. 下面将通过本发明实施例十三和本发明实施例十四进一步详细说明上述本发明实施例十的技术方案。 Embodiment of the present invention will now be thirteen embodiment of the present invention and technical solution of Embodiment 14 Embodiment 10 of the embodiment of the present invention in further detail.

[0229] 图13为本发明实施例十三提供的内容交付方法的流程示意图,本实施例为上述本发明实施例十的另一个具体实施例。 [0229] Figure 13 provides a schematic flow diagram of the content delivery thirteen embodiment of a method embodiment of the present invention, another embodiment of the present embodiment ten embodiment of the present invention to specific embodiments. 如图13所示,本实施例的内容交付方法可以包括以下步骤: As shown, the present embodiment 13 delivery method may comprise the steps of:

[0230] 步骤1301、TM向DNSl发送DNS请求消息; [0230] Step 1301, TM sends a DNS request message to the DNSl;

[0231] 其中,DNSl服务器作为该CP/SP指定域名的授权DNS。 [0231] wherein, DNSl authoritative DNS server as the CP / SP specified domain. 具体地,TM请求业务时触发DNS解析过程,DNS解析过程可以参见现有技术中的相关内容,此处不再赘述。 Specifically, it triggered TM requests a service DNS resolution process, DNS resolution process can be found in the prior art related content, is not repeated here. 这里ram 的DNS服务器作为该CP指定域名的授权DNS服务器。 Here ram DNS server designated as the CP domain of the authoritative DNS server.

[0232] 步骤1302、DNSl向TM返回DNS响应消息,上述DNS响应消息中包含CRl的标识信息; [0232] Step 1302, DNSl DNS response message returned to the TM, the above DNS response message includes identification information of CRl;

[0233] 需要说明的是:上述步骤1301与步骤1302是可选执行步骤。 [0233] Note that: the above-described step 1301 to step 1302 is an optional step.

[0234] 步骤1303、TM根据获取的CRl的标识信息,向CRl发送请求内容消息,上述请求内容消息中包含内容标识; [0234] Step 1303, TM CRl according to the identification information acquired, and transmits the content request message to CRl, the content of the above-described request message includes the content identifier;

[0235] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名。 [0235] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name.

[0236] 可选地,上述请求内容消息中还可以包含⑶附的标识信息、CP/SP的标识信息中的至少一项。 [0236] Optionally, the content request message may further comprise identification information appended ⑶, identification information of the at least one CP / SP in. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息:HTTP://CR1的标识信息/www. sina. com. cdnl. net/video/a. flv,其中,www. sina. com. cdnl. net 代表CDNl 的标识信息和CP/SP 的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: HTTP::......... // identification information of CR1 / www sina com cdnl net / video / a flv, wherein, www sina com cdnl net CDNl representative of a URL identification information carried by said information and identification information CP / SP of, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path. 上述以HTTP 为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0237] 步骤1304、CR1根据预先设置的交付策略,确定上述请求内容消息由⑶N2处理,向TM返回请求响应消息,上述请求响应消息中包含CR2的标识信息和上述内容标识; [0237] Step 1304, CR1 delivery according to a preset policy, determines the content to the request message by the ⑶N2 processing, in response to the request message TM returns the request response message includes the identification information and the content identifier of CR2;

[0238] 具体地,本步骤中,CRl可以根据设置的交付策略,确定该请求内容消息需要由CDN2提供服务,例如:基于TM的位置、时间、成本等因素的策略,需要由CDN2提供服务;或者CRl可以确定该请求内容消息所请求的内容不由CDm提供,则向CDN2的CR2转发该请求内容消息。 [0238] Specifically, in this step, CRl can deliver the policy settings, it is determined that the requested content message to be serviced by a CDN2, for example: the policy TM location, time, cost, and other factors based on, to be serviced by the CDN2; CRl or may determine the content of the content request message to provide the requested help CDm, forwarding the request message to the content of CDN2 CR2.

[0239] 可选地,上述请求响应消息中还可以包含⑶附的标识信息、CRl的标识信息、CP/ SP的标识信息中的至少一项。 [0239] Optionally, the request response message may further comprise identification information appended ⑶, CRl identification information, identification information of the CP / SP at least one. 其中,上述CRl的标识信息可以包括但不限于以下信息:IP 地址、域名,以供当缓存没有命中时,向CRl请求CSGl的标识信息。 Wherein the identification information of the CRl may include but is not limited to the following information: IP address, domain name, for when a cache miss, the request identifying information CSGl CRl. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息:HTTP://CR2 的标识信息/CRl 的标识信息/www. sina. com. cdnl. net/video/a. flv, 其中,www. sina. com. cdnl. net代表OMl的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: HTTP:........ // CR2 identification information of identification information / CRl is / www sina com cdnl net / video / a flv, wherein, www sina com cdnl net. representatives OMl identification information and CP / SP identification information, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0240] 需要说明的是:本步骤为通过CRl重定向TM的请求到CR2来实现请求内容。 [0240] It should be noted that: This is a step by requesting to the TM CR2 CRl redirect request content is achieved.

[0241] 步骤1305、TM根据获取的CR2的标识信息,向CR2发送请求内容消息,上述请求内容消息中包含上述内容标识; [0241] Step 1305, TM according to the identification information acquired CR2, CR2 sends a request message to the content, the content of the above request message includes the content identifier;

[0242] 步骤1306、CR2确定上述请求内容消息由⑶N3处理,向TM返回请求响应消息,上述请求响应消息中包含CR3的标识信息和上述内容标识; [0242] Step 1306, CR2 is determined by the above-described processing request message content ⑶N3, it returns the request response message to TM the request response message includes the identification information and the content identifier of CR3;

[0243] 具体地,CR2可以根据TM的位置、CP/SP的标识信息、内容标识中的至少一项,确定上述请求内容消息由CDN3处理。 [0243] In particular, according to the position of CR2 is the TM, CP / SP identification information identifying at least one of content, determined by the above-described processing request message content CDN3. 具体如:某特定区域的用户由某个特定的CDN处理;或者某个特定CP/SP和/或某些特定内容由某个特定的CDN处理。 Specific example: a user-specific region of CDN by a specific process; or a specific CP / SP and / or certain content from the CDN a particular process.

[0244] 步骤1307、TM根据获取的CR3的标识信息,向CR3发送请求内容消息,上述请求内容消息中包含上述内容标识; [0244] Step 1307, TM according to the identification information acquired CR3, CR3 sends a request message to the content, the content of the above request message includes the content identifier;

[0245] 步骤1308、CR3选择⑶3,向TM返回请求响应消息,上述请求响应消息中包含所选择的CD3的标识信息和上述内容标识; [0245] Step 1308, CR3 selected ⑶3, returns the request response message to the TM, in response to the request identification information and the above-CD3 message containing the selected identifier;

24[0246] 其中,上述⑶3的标识信息可以包括但不限于以下信息:IP地址、域名。 24 [0246] wherein the identification information of the ⑶3 may include but is not limited to the following information: IP address, the domain name.

[0247] 可选地,上述请求响应消息中还可以包含⑶附的标识信息、⑶N2的标识信息、CP/ SP的标识信息中的至少一项。 [0247] Optionally, the request response message may further comprise identification information appended ⑶, ⑶N2 identification information, identification information of the CP / SP at least one. 具体地,上述请求响应消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP 头域中的一项或几项。 Specifically, in response to the request message contained in the message may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes of one or a few, HTTP header field item. 例如:通过一个URL 携带上述信息:HTTP://192. 168. 1. 3/www. sina. com. cdnl. net. cdn2. net/video/a. flv,其中192. 168. 1. 3 代表CD3 的标识信息,此处以IP 为例,端口默认80,www. sina. com. cdnl. net. cdn2. net 代表CDNU CDN2 的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: HTTP:.. // 192 168. 1. 3 / www sina com cdnl net cdn2 net / video / a flv, wherein the representative 192. 168. 1.3...... CD3 identification information, where to IP, for example, the default port 80, www. sina. com. cdnl. net. cdn2. identification information for identifying information represents net CDNU CDN2 and CP / SP of, a. flv on behalf of content identification, this punishable by file name, for example, video / a. flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0248] 具体地,本步骤中的CR3可以根据⑶的负载状态和/或设置的交付策略(例如: 基于TM的位置、CP/SP的内容与⑶的对应关系等因素的策略),选择合适的⑶3。 [0248] Specifically, this step is CR3 can ⑶ load state and / or arrangements delivery policy (e.g.: policy factors based on the position (TM), the CP / correspondence relationship between content ⑶ an SP, etc.), select the appropriate the ⑶3.

[0249] 步骤1309、TM根据获取的⑶3的标识信息,向⑶3发送请求内容消息,上述请求内容消息中包含上述内容标识; [0249] Step 1309, TM ⑶3 according to the identification information acquired, sends a request message to ⑶3 content, the content of the above-described request message includes the content identifier;

[0250] 步骤1310、CD3根据上述内容标识,向CD3返回与上述内容标识对应的内容。 [0250] Step 1310, CD3 according to the content identifier, and return the content to the content identifier corresponding to CD3.

[0251] 具体地,本步骤中的⑶3可以预先通过上述本发明实施例二和本发明实施例三获取上述TM所请求的内容,具体描述可以参见上述本发明实施例二和本发明实施例三中的相关内容,此处不再赘述;或者还可以通过上述本发明实施例四和本发明实施例五获取上述TM所请求的内容,具体描述可以参见上述本发明实施例四和本发明实施例五中的相关内容,此处不再赘述。 [0251] Specifically, in this step ⑶3 may be predetermined according to the second and the present invention according to a third acquiring contents of TM requested embodiment by the above-described present invention, the detailed description can be found of the present invention according to the second and the present invention embodiments Example Three the content is not repeated here; or else according to a fourth and fifth embodiment of the present invention the above-described TM acquires the content requested by the embodiment of the present invention can be specifically described with reference may be made according to a fourth embodiment of the present invention and the above-described embodiments of the present invention, Fifth relevant content, not repeat them here.

[0252] 本实施例中,CRl获取到来自TM的内容请求之后,根据设置的交付策略,向该TM发送CR2的标识信息,CR2获取到来自TM的内容请求之后,根据设置的交付策略,向该TM发送CR3的标识信息,从而使得该TM能够通过CR3向⑶3请求与上述内容标识对应的内容, 实现了TM可以获取其他⑶N(OTNIB)中的⑶(⑶幻所交付的未签约CP/SP的内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行,保证了业务的正常进行。 [0252] In this embodiment, after the content acquired from CRl TM requests, delivery according to the policy settings, and transmits the identification information to TM CR2, CR2 acquired after the content request from the TM, according to the policy settings delivered to the TM transmitting identification information of CR3, such that the TM can be requested content to the content identifier corresponding to ⑶3 through CR3, realized TM can obtain additional ⑶N (OTNIB) in ⑶ (⑶ phantom delivered unsigned CP / SP content, solve the problem of the content of CP / SP is not signed prior art in the CR CDN selected CD can not deliver the request to the TM, to ensure the normal conduct of business, to ensure the normal conduct of business.

[0253] 图14为本发明实施例十四提供的内容交付方法的流程示意图,本实施例为上述本发明实施例十的另一个具体实施例。 [0253] Figure 14 provides a schematic flow diagram of the content delivery fourteen embodiment of the method of the present embodiment of the invention, another embodiment of the present embodiment ten embodiment of the present invention to specific embodiments. 如图14所示,本实施例的内容交付方法可以包括以下步骤: As shown, the present embodiment 14 delivery method may comprise the steps of:

[0254] 步骤1401、TM向DNSl发送DNS请求消息; [0254] Step 1401, TM sends a DNS request message to the DNSl;

[0255] 其中,DNSl服务器作为该CP/SP指定域名的授权DNS。 [0255] wherein, DNSl authoritative DNS server as the CP / SP specified domain. 具体地,TM请求业务时触发DNS解析过程,DNS解析过程可以参见现有技术中的相关内容,此处不再赘述。 Specifically, it triggered TM requests a service DNS resolution process, DNS resolution process can be found in the prior art related content, is not repeated here. 这里ram 的DNS服务器作为该CP指定域名的授权DNS服务器。 Here ram DNS server designated as the CP domain of the authoritative DNS server.

[0256] 步骤1402、DNS1向TM返回DNS响应消息,上述DNS响应消息中包含CRl的标识信息; [0256] Step 1402, DNS1 DNS response message returned to the TM, the above DNS response message includes identification information of CRl;

[0257] 需要说明的是:上述步骤1401与步骤1402是可选执行步骤。 [0257] Note that: the above-described step 1401 to step 1402 is an optional step.

[0258] 步骤1403、TM根据获取的CRl的标识信息,向CRl发送请求内容消息,上述请求内容消息中包含内容标识; [0258] Step 1403, TM CRl according to the identification information acquired, and transmits the content request message to CRl, the content of the above-described request message includes the content identifier;

[0259] 其中,上述内容标识可以包括但不限于以下标识:文件名、域名。 [0259] wherein, the content identifier may include, but are not limited to, the following identification: file name, the domain name.

[0260] 可选地,上述请求内容消息中还可以包含⑶附的标识信息、CP/SP的标识信息中的至少一项。 [0260] Optionally, the content request message may further comprise identification information appended ⑶, identification information of the at least one CP / SP in. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息:HTTP://CR1的标识信息/www. sina. com. cdnl. net/video/a. flv,其中,www. sina. com. cdnl. net 代表CDNl 的标识信息和CP/SP 的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: HTTP::......... // identification information of CR1 / www sina com cdnl net / video / a flv, wherein, www sina com cdnl net CDNl representative of a URL identification information carried by said information and identification information CP / SP of, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path. 上述以HTTP 为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0261] 步骤1404、CR1根据设置的交付策略,确定上述请求内容消息由⑶N2处理,向CR2 发送请求内容消息,上述请求内容消息中包含内容标识; [0261] Step 1404, CR1 delivered according to the set policy, determines the content of the request message is processed by the above-described ⑶N2, CR2 transmits the content request message, the above-described content includes content identification request message;

[0262] 具体地,本步骤中,CRl可以根据设置的交付策略,确定该请求内容消息需要由CDN2提供服务。 [0262] Specifically, in this step, may be delivered CRl policy settings to determine the content of the request message by the need to provide services CDN2. 例如:基于TM的位置、时间、成本等因素的策略,需要由CDN2提供服务;或者CRl可以确定该请求内容消息所请求的内容不由CDm提供,则向CDN2的CR2转发该请求内容消息。 For example: TM policy position, time, cost, and other factors based on the need to provide services CDN2; CRl or may determine that the contents request message to provide the requested help CDm, forwarding the request message to the content of CDN2 CR2.

[0263] 可选地,上述请求内容消息中还可以包含⑶m的标识信息、CP/SP的标识信息中的至少一项。 [0263] Optionally, the content request message may further comprise identification information ⑶m, the identification information of the at least one CP / SP in. 具体地,上述请求内容消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, information of the message includes the requested content may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes a, HTTP header field or several item. 例如:通过一个URL携带上述信息:HTTP://CR2的标识信息/CRl的标识信息/ www. sina. com. cdnl. net/video/a. flv,其中,www. sina. com. cdnl. net 代表CDNl 的标识信息和CP/SP的标识信息,a. flv代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: HTTP:........ // CR2 identification information of identification information / CRl is / www sina com cdnl net / video / a flv, wherein, www sina com cdnl net. representatives CDNl identification information and CP / SP identification information, a. flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0264] 步骤1405、CR2根据设置的交付策略,确定上述请求内容消息由⑶N3处理,向CR3 发送请求内容消息,上述请求内容消息中包含内容标识; [0264] Step 1405, CR2 according to the set delivery strategy is determined by the content of the message to the request processing ⑶N3, CR3 to send a request message content the content includes content identification request message;

[0265] CR2可以根据TM的位置、CP/SP的标识信息、内容标识中的至少一项,确定上述请求内容消息由CDN3处理。 [0265] CR2 (TM) according to the position, CP / SP identification information identifying at least one of content, determined by the above-described processing request message content CDN3. 具体如:某特定区域的用户由某个特定的CDN处理;或者某个特定CP/SP和/或某些特定内容由某个特定的⑶N处理。 Specific example: a user-specific region of CDN by a specific process; or a specific CP / SP and / or certain content of ⑶N by a specific process.

[0266] 步骤1406、CR3选择⑶3,向CR2返回请求响应消息,上述请求响应消息中包含所选择的CD3的标识信息和上述内容标识; [0266] Step 1406, CR3 selected ⑶3, returns the request response message to CR2, in response to the request identification information and the above-CD3 message containing the selected identifier;

[0267] 其中,上述⑶3的标识信息可以包括但不限于以下信息:IP地址、域名。 [0267] wherein the identification information of the ⑶3 may include but is not limited to the following information: IP address, the domain name.

[0268] 可选地,上述请求响应消息中还可以包含⑶N3的标识信息、CP/SP的标识信息中的至少一项。 [0268] Optionally, the request response message may further comprise identification information ⑶N3, the identification information of the at least one CP / SP in. 具体地,上述请求响应消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, in response to the request message contained in the message may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes of one or a few, HTTP header field item. 例如:通过一个URL 携带上述信息=HTTP://192. 168. 1. 3/www. sina. com. cdn3. net/video/a. flv,其中192. 168. 1. 3代表CD3的标识信息,此处以IP为例,端口默认80, www. sina. com. cdn3. net代表CDN3的标识信息和CP/SP的标识信息,a. flv代表内容标识, 此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in said information = HTTP:...... // 192 168. 1. 3 / www sina com cdn3 net / video / a flv, 192. 168. 1.3 wherein identification information representative of CD3 here the IP, for example, the default port 80, www. sina. com. cdn3. CDN3 identification information identifying information represents the net and CP / SP of, a. flv on behalf of content identification, where the file name, for example, video / a . flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0269] 具体地,本步骤中的CR3可以根据⑶的负载状态和/或设置的交付策略(例如: 基于TM的位置、CP/SP的内容与⑶的对应关系等因素的策略),选择合适的⑶3。 [0269] Specifically, this step is CR3 can ⑶ load state and / or arrangements delivery policy (e.g.: policy factors based on the position (TM), the CP / correspondence relationship between content ⑶ an SP, etc.), select the appropriate the ⑶3.

[0270] 该步骤可选,CR3可以直接返回消息给CRl。 [0270] This step is optional, CR3 message may be returned directly to the CRl.

[0271] 步骤1407、CR2向CRl返回请求响应消息,上述请求响应消息中包含所选择的⑶3的标识信息和上述内容标识; [0271] Step 1407, CR2 request response message returned to CRl, in response to the request identification information and said contents ⑶3 message containing the selected identifier;

[0272] 步骤1408、CRl向TM返回请求响应消息,上述请求响应消息中包含上述⑶3的标识信息和上述内容标识; [0272] Step 1408, CRl request response message returned to the TM, the above-described request response message includes identification information of the ⑶3 and the content identifier;

[0273] 可选地,上述请求响应消息中还可以包含⑶附的标识信息、⑶N2的标识信息、CRl 的标识信息、CP/SP的标识信息中的至少一项。 [0273] Optionally, the request response message may further comprise identification information ⑶ attached, at least one of ⑶N2 identification information, the identification information of CRl, CP / SP identification information. 其中,上述CRl的标识信息可以包括但不限于以下信息:IP地址、域名,以供当缓存没有命中时,向CRl请求CSGl的标识信息。 Wherein the identification information of the CRl may include but is not limited to the following information: IP address, domain name, for when a cache miss, the request identifying information CSGl CRl. 具体地, 上述请求响应消息中包含的信息可以通过一个共同的字段携带,例如:URL,或者还可以通过独立的字段携带,例如:URL、XML元素或属性、HTTP头域中的一项或几项。 Specifically, in response to the request message contained in the message may be carried by a common field, for example: URL, or may also be carried by separate fields, for example: URL, XML elements or attributes of one or a few, HTTP header field item. 例如:通过一个URL 携带上述信息:ΗΤΤΡ://192· 168. 1. 3/CR1 的标识信息/www. sina. com. cdnl. net. cdn2. net/video/a. flv,其中,192. 168. 1. 3代表CD3的标识信息,此处以IP为例,端口默认80 ; www. sina. com. cdnl. net. cdn2. net 代表CDm,CDN2 的标识信息和CP/SP 的标识信息,a. flv 代表内容标识,此处以文件名为例,video/a. flv表示了内容路径。 For example: by a URL carried in the above information: ΗΤΤΡ:...... // identification information 192 · 168. 1. 3 / CR1 is / www sina com cdnl net cdn2 net / video / a flv, wherein 192. 168. 1.3 CD3 information representative of the identification, to IP as an example here, the default port 80;...... www sina com cdnl net cdn2 net representatives CDm, identification information and identification information CDN2 CP / SP, a is . flv on behalf of content identification, where the file name, for example, video / a. flv shows the content path. 上述以HTTP为例,还可以采用FTP等其他协议,本实施例对此不进行限制。 In the above an example HTTP, FTP, other protocols may also be employed, the present embodiment is not limited in this embodiment.

[0274] 步骤1409、TM根据获取的⑶3的标识信息,向⑶3发送请求内容消息,上述请求内容消息中包含上述内容标识; [0274] Step 1409, TM ⑶3 according to the identification information acquired, sends a request message to ⑶3 content, the content of the above-described request message includes the content identifier;

[0275] 步骤1410、⑶3根据上述内容标识,向TM返回与上述内容标识对应的内容。 [0275] Step 1410, ⑶3 according to the content identifier, and return the content to the content identifier corresponding to the TM.

[0276] 具体地,本步骤中的⑶3可以预先通过上述本发明实施例二和本发明实施例三获取上述TM所请求的内容,具体描述可以参见上述本发明实施例二和本发明实施例三中的相关内容,此处不再赘述;或者还可以通过上述本发明实施例四和本发明实施例五获取上述TM所请求的内容,具体描述可以参见上述本发明实施例四和本发明实施例五中的相关内容,此处不再赘述。 [0276] Specifically, in this step ⑶3 may be predetermined according to the second and the present invention according to a third acquiring contents of TM requested embodiment by the above-described present invention, the detailed description can be found of the present invention according to the second and the present invention embodiments Example Three the content is not repeated here; or else according to a fourth and fifth embodiment of the present invention the above-described TM acquires the content requested by the embodiment of the present invention can be specifically described with reference may be made according to a fourth embodiment of the present invention and the above-described embodiments of the present invention, Fifth relevant content, not repeat them here.

[0277] 本实施例中,CRl获取到来自TM的内容请求之后,根据设置的交付策略,通过CR2 和CR3向该TM发送CD3的标识信息,从而使得该TM能够向CD3请求与上述内容标识对应的内容,实现了TM可以获取其他CDN(CDN3)中的CD(CDIB)所交付的未签约CP/SP的内容, 解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行,保证了业务的正常进行。 [0277] In this embodiment, after obtaining the content from CRl TM requests, according to the delivery policy settings, by transmitting the identification information CR2, and CR3 to CD3 of TM, such that the TM can be a request to the content identifier corresponding to the CD3 content to achieve a TM can obtain the additional CDN (CDN3) CD (CDIB) delivered content CP / SP is not signed, CD solves the prior art in the CDN selected CR can not be delivered to the requested TM the contents of CP / SP of unsigned issues, to ensure the normal conduct of business, to ensure the normal conduct of business.

[0278] 进一步地,在部署本发明实施例所涉及的网络架构时,⑶N中的⑶可以进一步采用分层部署,例如:一般在城域网部署多个CD域,其中每个CD域内可以有多个CD,一个或者多个从交付控制实体(即子CR中的交付控制实体),同时还提供一个主CR交付控制实体(即全局CR中的交付控制实体),对多个⑶域进行统一管理与控制。 [0278] Furthermore, when deploying a network architecture according to a embodiment of the present invention, ⑶N ⑶ the deployment may further stratified, for example: CD plurality of domains typically deployed in metropolitan area, where each region can have CD a plurality of the CD, the one or more delivery from the control entity (i.e., in the sub-CR delivery control entity), while also providing a CR main delivering controlling entity (i.e., delivered in the global control entity CR), a plurality of domains uniformly ⑶ management and control. 类似地,⑶N中的CSG也可以采用分层部署,此处不再赘述。 Similarly, ⑶N in a CSG may be deployed stratified, is not repeated here. 采用分层部署之后,上述本发明实施例二至本发明实施例九中所涉及的第二CDN中的CR(CR2或CR3),均可以包括第二CDN中的主CR和该主CR所选择的第二⑶N中的子CR,具体可以是主CR先接收请求或响应,然后选择子CR并转发给子CR进行处理。 After stratified deployment, according to a second embodiment of the present invention to the above-described second embodiment of the present invention, nine embodiments directed to the CDN in CR (CR2 is or CR3), each may comprise a second primary CDN of the CR and CR of the selected master a second sub-CR ⑶N in particular may be a master or CR in response to receiving the request, then select and forward to the sub-sub-CR CR processing. 类似地,上述本发明实施例六至本发明实施例九中所涉及的第三⑶N中的CR(CR2)可以包括第三⑶N中的主CR和该主CR所选择的第三⑶N中的子CR,具体可以是主CR先接收请求或响应,然后选择子CR并转发给子CR进行处理。 Similarly, according to a sixth embodiment of the present invention to the embodiment of the present invention in a third embodiment ⑶N nine involved in the CR (CR2 is) can comprise a third sub-master ⑶N third ⑶N of CR and CR of the selected main in CR, CR particular may be a primary or response to receiving the request, then select and forward to the sub-sub-CR CR processing.

[0279] 需要说明的是:对于前述的各方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本发明并不受所描述的动作顺序的限制,因为依据本发明,某些步骤可以采用其他顺序或者同时进行。 [0279] It should be noted: Example For the foregoing method, for ease of description, it is described as a series combination of actions, those skilled in the art should understand that the present invention is not described in the operation sequence It limited since according to the present invention, some steps may be performed simultaneously or in other sequences. 其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定是本发明所必须的。 Secondly, those skilled in the art should also understand that the embodiments are described in the specification are exemplary embodiments, actions and modules involved are not necessarily required by the present invention.

[0280] 在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。 [0280] In the above embodiment, the description of the various embodiments have different emphases, certain embodiments not detailed in part, be related descriptions in other embodiments.

[0281] 图15为本发明实施例十五提供的内容获取装置的结构示意图,如图15所示,本实施例的内容获取装置可以设置于第二⑶N中,可以包括获取模块1501,用于获取第一⑶N中的CSG发送的内容,上述第一⑶N与CP/SP签约,以使上述第一⑶N从上述CP/SP获取所述内容。 [0281] FIG 15 a schematic view of embodiment apparatus acquires the content provided by the embodiment of the present invention, fifteen, shown in Figure 15, the present embodiment may be provided in the second acquisition means ⑶N, the obtaining module 1501 may include, for acquire the content transmitted from the first ⑶N CSG in the first ⑶N the CP / SP contract, so that the first ⑶N obtaining the content from the CP / SP.

[0282] 上述本发明实施例一中第二⑶N中的CSG或第二⑶N中的⑶、发明实施例二、三中CSG2/⑶2、本发明实施例四、五中⑶2、本发明实施例六、七中CSG3/⑶3、本发明实施例八、 九中CD3的功能均可以由本发明实施例提供的内容获取装置实现。 ⑶N a second embodiment of the CSG or the second ⑶N ⑶ embodiment [0282] of the present invention, according to a second embodiment of the invention, III CSG2 / ⑶2, fourth embodiment, fifth ⑶2 the present invention, according to a sixth embodiment of the present invention , VII CSG3 / ⑶3, embodiments of the present invention, eight, nine in CD3 content features are provided by the embodiment of the present invention may be implemented acquisition means.

[0283] 本实施例中,通过获取模块获取第一CDN中的CSG发送的与内容标识对应的内容, 实现了第二⑶N中的⑶能够从其他CDN中的CSG获取该第二⑶N未签约CP/SP的内容, 从而得以向TM交付该内容,解决了现有技术中CDN中的CR所选择的CD无法向TM交付所请求的未签约CP/SP的内容的问题,保证了业务的正常进行。 [0283] In this embodiment, the acquiring module acquires the first content identifier corresponding to the CDN content transmitted with a CSG, to achieve the second ⑶N ⑶ can be obtained in the second ⑶N unsigned CP from the other CSG CDN / SP of the content, thus allowing the delivery of the content to the TM, solves the problem of the prior art CDN content CR in the CD can not be selected to deliver the requested TM unsigned the CP / SP to ensure that the normal service .

[0284] 图16为本发明实施例十六提供的内容交付装置的结构示意图,如图16所示,本实施例的内容交付装置可以设置于第一⑶N中,该第一⑶N与CP/SP签约,以使上述第一⑶N 从上述CP/SP获取内容,可以包括接收模块1601和发送模块1602。 [0284] Figure 16 provides a schematic structural diagram of the content delivery apparatus embodiment sixteen embodiment of the invention, shown in Figure 16, the present embodiment the delivery device may be provided in the first ⑶N, the first ⑶N the CP / SP signed, so that the first ⑶N acquired from the CP / SP content 1601 may include a receiving module 1602 and a sending module. 其中,接收模块1601获取来自终端的内容请求,用以请求与内容标识对应的内容,发送模块1602根据交付策略, 向上述终端发送第二⑶N中的CR或第二⑶N中的⑶的标识信息,以使上述终端向第二⑶N 中的CD请求与上述内容标识对应的内容。 Wherein, the receiving module 1601 acquires the content request from the terminal, for requesting content corresponding to the content identifier, the transmission module 1602 according to the delivery policy, transmitting identification information of the second ⑶N the CR or the second ⑶N ⑶ to the terminal, so that the terminal requests the content corresponding to the content identifier of the second ⑶N CD.

[0285] 上述本发明实施例十中第一⑶N中的CR、发明实施例i^一、十二、十三、十四中CRl 的功能均可以由本发明实施例提供的内容交付装置实现。 CR ⑶N in ten in the first embodiment [0285] of the present invention, one embodiment of invention i ^, twelve, thirteen, fourteen in CRl content features are provided by the present invention may be implemented by the delivery device to achieve.

[0286] 本实施例中,接收模块获取到来自TM的内容请求之后,发送模块根据设置的交付策略,向该TM发送第二⑶N中的CR或第二⑶N中的⑶的标识信息,从而使得该TM能够向第二CDN中的CD请求与上述内容标识对应的内容,实现了TM可以获取其他CDN中的CD所交付的CP/SP的内容,保证了业务的正常进行。 [0286] In this embodiment, after acquiring the content from the receiving module TM request transmission module according to delivery policy setting, and transmits the identification information of the second ⑶N CR or the second ⑶N ⑶ to the TM, so that the TM can be requested content to the content identifier corresponding to the second CD in the CDN, content may be obtained to achieve a TM CP / SP in the other CD CDN delivered, to ensure the normal operations.

[0287] 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。 [0287] 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.

[0288] 最后应说明的是:以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。 [0288] Finally, it should be noted that: the above embodiments are intended to illustrate the present invention, rather than limiting;. Although the present invention has been described in detail embodiments, those of ordinary skill in the art should be understood: may still be made to the technical solutions described in each embodiment of the modified or part of the technical features equivalents; as such modifications or replacements do not cause the essence of corresponding technical solutions to depart from the technical solutions of the embodiments of the present invention and scope.

Claims (27)

1. 一种内容获取方法,其特征在于,包括:第二内容分发网络CDN中的内容存储实体CSG或第二CDN中的内容交付实体CD获取第一⑶N中的CSG发送的内容,所述第一⑶N与内容提供商CP/业务提供商SP签约,以使所述第一⑶N从所述CP/SP获取所述内容。 A content acquisition method, characterized by comprising: a second content delivery network content storage entity CSG CDN content or the second entity in the CDN to deliver contents of the first CD acquired in a CSG ⑶N transmitted, the first ⑶N a content provider CP / SP subscription service provider, so that the first ⑶N obtaining the content from the CP / SP.
2.根据权利要求1所述的方法,其特征在于,所述第二 CDN与所述第一CDN签约,所述第二⑶N中的CSG或第二⑶N中的⑶获取第一⑶N中的CSG发送的内容包括:第二⑶N中的CSG或第二⑶N中的⑶通过第二⑶N中的内容路由实体CR获取内容分发请求消息,所述内容分发请求消息中包含内容标识和第一CDN中的CSG的标识信息;所述第二⑶N中的CSG或所述第二⑶N中的⑶根据所述第一⑶N中的CSG的标识信息,向所述第一CDN中的CSG请求与所述内容标识对应的内容;所述第二⑶N中的CSG或所述第二⑶N中的⑶获取所述第一⑶N中的CSG发送的与所述内容标识对应的内容。 2. The method according to claim 1, wherein the second subscription to the CDN CDN first, the second or the second ⑶N a CSG ⑶N ⑶ acquired in the first CSG ⑶N the transmission includes: a second ⑶N the CSG or the second ⑶N ⑶ content distribution request message routing entity by the second CR ⑶N obtain content, the content distribution request message includes a first content identifier and the CDN identification information of the CSG; ⑶N in the second or the CSG ⑶ second ⑶N in accordance with the identification information of the first ⑶N in a CSG, to the first request to the CDN CSG with the content identifier corresponding to the content; ⑶N in the second or the second ⑶N CSG ⑶ in obtaining the content identifier corresponding to the contents of the first ⑶N CSG and transmitted.
3.根据权利要求1所述的方法,其特征在于,所述第二 CDN与所述第一CDN签约,所述第一⑶N中的CSG是根据获取的所述第二⑶N中的CSG的标识信息,向所述第二⑶N中的CSG分发内容的,所述第二⑶N中的CSG的标识信息是所述第二⑶N中的CSG通过第二⑶N中的CR向所述第一⑶N中的CSG发送的,或者是第二⑶N中的CR向所述第一⑶N中的CSG发送的;或者所述第一⑶N中的CSG是根据获取的所述第二⑶N中的⑶的标识信息,向所述第二⑶N中的⑶分发内容的,所述第二⑶N中的⑶的标识信息是所述第二⑶N中的⑶通过第二⑶N中的CR向所述第一⑶N中的CSG发送的,或者是第二⑶N中的CR向所述第一⑶N 中的CSG发送的。 3. The method according to claim 1, characterized in that the second and the first subscription CDN CDN, the first is the CSG ⑶N in accordance with the acquired second identification of the CSG ⑶N information, the second distributing content to the CSG ⑶N of the identification information of the second ⑶N a CSG is the second in a CSG ⑶N ⑶N in the second to the first CR in ⑶N CSG sent, or the second ⑶N the CR transmitter to the first in a CSG ⑶N; ⑶N in the first or CSG identifier information according to the acquired second ⑶N in ⑶ of the the second ⑶N ⑶ in distributing content, the identification information of the second ⑶N ⑶ ⑶N is the second in the second ⑶N ⑶ the CR transmitter to the first by a CSG ⑶N or the CR transmitter ⑶N the second to the first ⑶N the CSG.
4.根据权利要求1所述的方法,其特征在于,所述第二 CDN与所述第一CDN签约,第二⑶N中的⑶获取第一⑶N中的CSG发送的内容包括:第二⑶N中的⑶通过第二⑶N中的CR向第一⑶N中的CR请求与内容标识对应的内容;所述第二⑶N中的⑶获取所述第一⑶N中的CR返回的第一⑶N中的CSG的标识信息;所述第二⑶N中的⑶根据所述第一⑶N中的CSG的标识信息,向所述第一⑶N中的CSG请求与所述内容标识对应的内容;所述第二CDN中的CD获取所述第一CDN中的CSG发送的与所述内容标识对应的内容。 4. The method according to claim 1, wherein the second subscription to the CDN CDN first, second ⑶N ⑶ acquires the content of the CSG ⑶N first transmission comprises: a second in ⑶N ⑶ ⑶N of the CR by a second request to the first ⑶N the CR content corresponding to the content identifier; in the second ⑶N ⑶ ⑶N obtaining a first CSG in the first ⑶N returned in CR identification information; and the second ⑶N in accordance with the identification information of the first ⑶ ⑶N in a CSG, to the first request ⑶N a CSG with the content identifier corresponding to the content; in the second CDN CD obtaining the content identifier corresponding to the contents of the first CSG CDN and transmitted.
5.根据权利要求1所述的方法,其特征在于,所述第二 CDN与所述第一CDN签约,第二⑶N中的⑶获取第一⑶N中的CSG发送的内容包括:第二⑶N中的⑶通过第二⑶N中的CR向第一⑶N中的CR请求与内容标识对应的内容,所述请求对应的请求内容消息中包含所述第二CDN中的CD的标识信息;所述第二⑶N中的⑶获取第一⑶N中的CSG发送的与所述内容标识对应的内容,其中:所述第一CDN中的CSG是根据获取的所述第二CDN中的CD的标识信息向所述第二CDN 中的CD发送与所述内容标识对应的内容的。 5. The method according to claim 1, wherein the second subscription to the CDN CDN first, second ⑶N ⑶ acquires the content of the CSG ⑶N first transmission comprises: a second in ⑶N the CR ⑶ request to identify content corresponding to the content of the first ⑶N, identification information corresponding to the request message includes the requested content in the CDN second CD by the second ⑶N CR; the second ⑶ ⑶N of obtaining the content identifier corresponding to the content of the first ⑶N CSG and transmitted, wherein: the first is a CSG CDN according to the acquired second identification information of the CD to the CDN CD transmits the second content identifier corresponding to the CDN content.
6.根据权利要求1所述的方法,其特征在于,所述第二⑶N中的CSG或第二⑶N中的⑶获取第一⑶N中的CSG发送的内容包括:第二⑶N中的CSG或第二⑶N中的⑶通过第三⑶N中的CR和第二⑶N中的CR获取内容分发请求消息,所述内容分发请求消息中包含所述内容标识和第一CDN中的CSG的标识信息,所述第三⑶N与所述第一⑶N签约,所述第二⑶N与所述第三⑶N签约;所述第二⑶N中的CSG或所述第二⑶N中的⑶根据所述第一⑶N中的CSG的标识信息,向所述第一CDN中的CSG请求与所述内容标识对应的内容;所述第二⑶N中的CSG或所述第二⑶N中的⑶获取所述第一⑶N中的CSG发送的与所述内容标识对应的内容。 6. The method according to claim 1, wherein said second ⑶N a CSG or second ⑶N ⑶ acquires the content of the CSG ⑶N first transmission comprises: a second section or a CSG ⑶N the two ⑶N ⑶ obtain content distribution request message through the third ⑶N CR and CR of the second ⑶N, the content distribution request message contains identification information of the first content identifier and the CSG in the CDN, the the first and third ⑶N ⑶N subscription, the second and the third ⑶N ⑶N subscription; in the second ⑶N CSG or the second ⑶N ⑶ according to the first in a CSG ⑶N identification information request to the CSG identifier corresponding to the content of the first content in the CDN; ⑶N in the second or the second ⑶N CSG ⑶ acquired in the first transmission ⑶N a CSG with content corresponding to the content identifier.
7.根据权利要求1所述的方法,其特征在于,所述第一⑶N中的CSG是根据获取的所述第二⑶N中的CSG的标识信息,向所述第二⑶N中的CSG分发与内容的,所述第二⑶N中的CSG的标识信息是所述第二⑶N中的CSG通过第二⑶N中的CR和第三⑶N中的CR向所述第一⑶N中的CSG发送的,或者是第二⑶N 中的CR通过第三⑶N中的CR向所述第一⑶N中的CSG发送的,所述第三⑶N与所述第一⑶N签约,所述第二⑶N与所述第三⑶N签约;或者所述第一⑶N中的CSG是根据获取的所述第二⑶N中的⑶的标识信息,向所述第二⑶N中的⑶分发内容的,所述第二⑶N中的⑶的标识信息是所述第二⑶N中的⑶通过第二⑶N中的CR和第三⑶N中的CR向所述第一⑶N中的CSG发送的,或者是第二⑶N中的CR通过第三⑶N中的CR向所述第一⑶N中的CSG发送的,所述第三⑶N与所述第一⑶N签约,所述第二⑶N与所述第三⑶N签约。 The method according to claim 1, wherein said first ⑶N a CSG identifier information according to the acquired second ⑶N in a CSG, to the second distribution in a CSG and ⑶N content, identification information of the second ⑶N a CSG is the second in a CSG ⑶N sent to the first in a CSG ⑶N the CR by the second and third ⑶N ⑶N in CR, or second ⑶N is transmitted through the third ⑶N CR CR in the first ⑶N to a CSG, the third subscription ⑶N ⑶N the first, the second and the third ⑶N ⑶N subscription; or the first ⑶N a CSG identifier information according to the acquired second ⑶N in the ⑶ to said second ⑶N ⑶ in distributing content, the identifier of the second ⑶N of ⑶ said second information in ⑶N ⑶ second ⑶N the CR and CR of the third ⑶N sent to the first in a CSG ⑶N through, the second or the third ⑶N CR in the ⑶N CR ⑶N sent to the first in the CSG, the third and the first ⑶N ⑶N subscription, subscription ⑶N the second and the third ⑶N.
8.根据权利要求1所述的方法,其特征在于,第二 CDN中的CD获取第一CDN中的CSG 发送的内容包括:第二⑶N中的⑶通过第二⑶N中的CR和第三⑶N中的CR向第一⑶N中的CR请求与内容标识对应的内容,所述第三⑶N与所述第一⑶N签约,所述第二⑶N与所述第三⑶N签约;所述第二⑶N中的⑶获取所述第一⑶N中的CR返回的第一⑶N中的CSG的标识信息;所述第二⑶N中的⑶根据所述第一⑶N中的CSG的标识信息,向所述第一⑶N中的CSG请求与所述内容标识对应的内容;所述第二CDN中的CD获取所述第一CDN中的CSG发送的与所述内容标识对应的内容。 8. The method according to claim 1, characterized in that the second CD acquire the CDN CDN content of the first transmitted in a CSG comprises: a second ⑶N ⑶ in the second and third ⑶N the CR ⑶N in CR, the first and the third ⑶N ⑶N CR subscription request to identify content corresponding to the content of the first ⑶N, the second and the third ⑶N ⑶N subscription; in the second ⑶N the first ⑶N ⑶ obtain identification information of the first ⑶N CR returned in a CSG; ⑶N said second identification information in accordance with the first ⑶ ⑶N in a CSG, to the first ⑶N the CSG request content corresponding to the content identifier; CD in the second CDN obtaining the content identifier corresponding to the contents of the first CSG CDN and transmitted.
9.根据权利要求1所述的方法,其特征在于,第二⑶N中的⑶获取第一 CDN中的CSG 发送的内容包括:第二⑶N中的⑶通过第二⑶N中的CR和第三⑶N中的CR向第一⑶N中的CR请求与内容标识对应的内容,所述请求对应的请求内容消息中包含所述第二CDN中的CD的标识信息,所述第三⑶N与所述第一⑶N签约,所述第二⑶N与所述第三⑶N签约;所述第二CDN中的CD获取第一CDN中的CSG发送的与所述内容标识对应的内容,其中:所述第一CDN中的CSG是根据获取的所述第二CDN中的CD的标识信息向所述第二CDN 中的CD发送与所述内容标识对应的内容的。 9. The method according to claim 1, wherein, in the second ⑶N ⑶ acquires the content of the first CSG transmitted CDN comprising: a second ⑶N ⑶ in the second and third ⑶N the CR ⑶N the CR CR request to identify content corresponding to the content of the first ⑶N, corresponding to the request message comprises the requested content identifier information in the CDN CD said second, said third and said first ⑶N ⑶N subscription, the second and the third ⑶N ⑶N subscription; in the second CD CDN obtaining the content identifier corresponding to the content of the first CSG CDN and transmitted, wherein: the first in the CDN CD is a CSG transmits content to the second content identifier corresponding to the CDN in accordance with the acquired second identification information in the CDN of a CD.
10.根据权利要求2至9任一权利要求所述的方法,其特征在于,所述第二⑶N中的CR包括第二⑶N中的主CR和所述第二⑶N中的主CR选择的第二⑶N中的子CR。 According to claim any one of claims 2 to 9 A method as claimed in claim, wherein, in said second ⑶N CR includes a first main ⑶N of the second primary and the second CR CR is selected ⑶N ⑶N in two sub-CR.
11.根据权利要求6至9任一权利要求所述的方法,其特征在于,所述第三CDN中的CR 包括第三⑶N中的主CR和所述第三⑶N中的主CR选择的第三⑶N中的子CR。 According to claim any one of claims 6-9 A method as claimed in claim, wherein said third section comprises the CDN CR ⑶N the third main main CR and CR of the third selected ⑶N ⑶N of three sub-CR.
12.根据权利要求1至9任一权利要求所述的方法,其特征在于,所述第二 CDN未与所述CP/SP签约,所述第二⑶N不能够从所述CP/SP获取所述内容。 12. The method according to any one of claims 9 claimed in claim, wherein said second and said unsigned CDN CP / SP, the second can not acquire the ⑶N from the CP / SP said contents.
13. 一种内容交付方法,其特征在于,包括:第一内容分发网络CDN中的内容路由实体CR获取来自终端的内容请求,用以请求与内容标识对应的内容,所述第一CDN与内容提供商CP/业务提供商SP签约,以使所述第一CDN 从所述CP/SP获取所述内容;所述第一⑶N中的CR根据交付策略,向所述终端发送第二⑶N中的CR或第二⑶N中的内容交付实体CD的标识信息,以使所述终端向第二CDN中的CD请求与所述内容标识对应的内容。 13. A content delivery method comprising: a first content in the content delivery network CDN routing entity CR acquires the content request from the terminal, a request to identify content corresponding to the content, the first content and the CDN provider CP / SP subscription service provider, so that the first CDN obtaining the content from the CP / SP; in the first ⑶N CR, the transmitting terminal according to a second delivery strategy of ⑶N CR or the second identification information of the content delivery entity ⑶N in the CD, so that the terminal requesting the content to a CD with the content identifier corresponding to the second of the CDN.
14.根据权利要求13所述的方法,其特征在于,所述方法还包括:第二 CDN中的CSG或所述第二CDN中的CD获取与所述内容标识对应的内容。 14. The method according to claim 13, wherein said method further comprises: a second in the CDN or the second CSG CD acquire the CDN content corresponding to the content identifier.
15.根据权利要求14所述的方法,其特征在于,所述第二 CDN与所述第一CDN签约,所述第二⑶N中的CSG或所述第二⑶N中的⑶获取与所述内容标识对应的内容包括:第二⑶N中的CSG或所述第二⑶N中的⑶通过第二⑶N中的CR获取内容分发请求消息,所述内容分发请求消息中包含所述内容标识和第一CDN中的CSG的标识信息;所述第二⑶N中的CSG或所述第二⑶N中的⑶根据所述第一⑶N中的CSG的标识信息,向所述第一CDN中的CSG请求与所述内容标识对应的内容;所述第二⑶N中的CSG或所述第二⑶N中的⑶获取所述第一⑶N中的CSG发送的与所述内容标识对应的内容。 15. The method according to claim 14, wherein the second subscription CDN CDN said first, said second or a CSG ⑶N ⑶N in the second acquiring the content ⑶ corresponding to the content identifier comprises: a second ⑶N of the CSG or the second ⑶N ⑶ obtaining the content distribution request message through the second ⑶N in CR, the content distribution request message includes the content identifier and the first CDN the identification information of the CSG; ⑶N in the second or the second ⑶N CSG ⑶ in accordance with the identification information of the first ⑶N in a CSG, to the first request to the CDN in a CSG content corresponding to the content identifier; ⑶N in the second or the second ⑶N CSG ⑶ in obtaining the content identifier corresponding to the contents of the first ⑶N CSG and transmitted.
16.根据权利要求14所述的方法,其特征在于,所述第二 CDN与所述第一CDN签约,所述第二⑶N中的CSG或所述第二⑶N中的⑶获取与所述内容标识对应的内容包括:第二⑶N中的CSG或所述第二⑶N中的⑶获取第一⑶N中的CSG发送的与所述内容标识对应的内容,其中:所述第一⑶N中的CSG是根据获取的所述第二⑶N中的CSG的标识信息,向所述第二CDN中的CSG分发与所述内容标识对应的内容的,所述第二CDN中的CSG的标识信息是所述第二⑶N中的CSG通过第二⑶N中的CR向所述第一⑶N中的CSG发送的,或者是第二⑶N 中的CR向所述第一⑶N中的CSG发送的;或者所述第一⑶N中的CSG是根据获取的所述第二⑶N中的⑶的标识信息,向所述第二CDN中的CD分发与所述内容标识对应的内容的,所述第二CDN中的CD的标识信息是所述第二⑶N中的⑶通过第二⑶N中的CR向所述第一⑶N中的CSG发送的,或者是 16. The method according to claim 14, wherein the second subscription CDN CDN said first, said second or a CSG ⑶N ⑶N in the second acquiring the content ⑶ corresponding to the content identifier comprises: a second ⑶N of the CSG or the second ⑶N ⑶ obtaining content corresponding to the content identifier transmitted from the first CSG ⑶N, wherein: the first is a CSG ⑶N according to the CSG identification information of the acquired second ⑶N in distributing the content corresponding to the identifier of the second content to the CDN in a CSG, the second identification information in the CDN is the first CSG two ⑶N a CSG ⑶N sent to the first in a CSG of the second ⑶N CR, or the second ⑶N the CR transmitter to the first in a CSG ⑶N; or the first ⑶N the CSG is in the acquired identification information of the second ⑶N ⑶, the distribution of the CD with the content of the second content corresponding to the identifier in the CDN, the CDN and the second identification information of CD in said second ⑶N ⑶ sent to the first in a CSG ⑶N ⑶N by the second CR, or 第二⑶N中的CR向所述第一⑶N中的CSG发送的。 The second ⑶N CR is transmitted to the first ⑶N the CSG.
17.根据权利要求14所述的方法,其特征在于,所述第二 CDN与所述第一CDN签约,所述第二CDN中的CD获取与所述内容标识对应的内容包括:所述第二⑶N中的⑶通过第二⑶N中的CR向第一⑶N中的CR请求与所述内容标识对应的内容;所述第二⑶N中的⑶获取所述第一⑶N中的CR返回的第一⑶N中的CSG的标识信息;所述第二⑶N中的⑶根据所述第一⑶N中的CSG的标识信息,向所述第一⑶N中的CSG请求与所述内容标识对应的内容;所述第二CDN中的CD获取所述第一CDN中的CSG发送的与所述内容标识对应的内容。 17. The method according to claim 14, wherein said first and second subscription CDN CDN, the CDN and the second CD to acquire content corresponding to the content identifier comprises: a first in the second ⑶N ⑶ obtain a first CR in the first ⑶N returned; ⑶ two ⑶N the request CR to the content identifier corresponding to the content of the first through the second ⑶N ⑶N in CR identification information of the CSG ⑶N; ⑶N the second identification information in accordance with the first ⑶ ⑶N in a CSG, and the CSG requested content identifier corresponding to the content of the first ⑶N; the the second CD CDN obtaining the content identifier corresponding to the contents of the first CSG CDN and transmitted.
18.根据权利要求14所述的方法,其特征在于,所述第二 CDN与所述第一CDN签约,所述第二CDN中的CD获取与所述内容标识对应的内容包括:所述第二⑶N中的⑶通过第二⑶N中的CR向第一⑶N中的CR请求与所述内容标识对应的内容,所述请求对应的请求内容消息中包含所述第二CDN中的CD的标识信息;所述第二CDN中的CD获取第一CDN中的CSG发送的与所述内容标识对应的内容,其中:所述第一CDN中的CSG是根据获取的所述第二CDN中的CD的标识信息向所述第二CDN 中的CD发送与所述内容标识对应的内容的。 18. The method according to claim 14, wherein said first and second subscription CDN CDN, the CDN and the second CD to acquire content corresponding to the content identifier comprises: a first the two ⑶N ⑶ CR request to identify content corresponding to the content of the first ⑶N, identification information corresponding to the request message includes the requested content in the CDN second CD by the second CR ⑶N ; said second CD acquire the CDN content identifier corresponding to the content of the first transmitted CDN in a CSG, wherein: the first is the CDN according to the acquired CSG second CD of the CDN identification information for identifying content corresponding to the CD with the content of the second transmit the CDN.
19.根据权利要求14所述的方法,其特征在于,所述第二 CDN中的CSG或所述第二CDN 中的CD获取与所述内容标识对应的内容包括:第二⑶N中的CSG或所述第二⑶N中的⑶通过第三⑶N中的CR和第二⑶N中的CR获取内容分发请求消息,所述内容分发请求消息中包含所述内容标识和第一CDN中的CSG的标识信息,所述第三⑶N与所述第一⑶N签约,所述第二⑶N与所述第三⑶N签约;所述第二⑶N中的CSG或所述第二⑶N中的⑶根据所述第一⑶N中的CSG的标识信息,向所述第一CDN中的CSG请求与所述内容标识对应的内容;所述第二⑶N中的CSG或所述第二⑶N中的⑶获取所述第一⑶N中的CSG发送的与所述内容标识对应的内容。 19. The method according to claim 14, wherein said second CDN CSG in the second or CD to acquire the CDN content corresponding to the content identifier comprises: a second or a CSG ⑶N in the second ⑶N ⑶ obtaining the content distribution request message through the third ⑶N CR and CR of the second ⑶N, the content distribution request message contains identification information identifying the content of the CSG and the first CDN the third and the first ⑶N ⑶N subscription, the second and the third ⑶N ⑶N subscription; in the second ⑶N CSG or the second ⑶N ⑶ in accordance with the first ⑶N identification information of a CSG, and the CSG request to the content identifier corresponding to the contents of the first CDN; ⑶N in the second or the second ⑶N CSG in ⑶ in acquiring the first ⑶N with content corresponding to the content identifier transmitted CSG.
20.根据权利要求14所述的方法,其特征在于,所述第二 CDN中的CSG或所述第二CDN 中的CD获取与所述内容标识对应的内容包括:第二⑶N中的CSG或所述第二⑶N中的⑶获取第一⑶N中的CSG发送的与所述内容标识对应的内容,其中:所述第一⑶N中的CSG是根据获取的所述第二⑶N中的CSG的标识信息,向所述第二CDN中的CSG分发与所述内容标识对应的内容的,所述第二CDN中的CSG的标识信息是所述第二⑶N中的CSG通过第二⑶N中的CR和第三⑶N中的CR向所述第一⑶N中的CSG发送的,或者是第二⑶N中的CR通过第三⑶N中的CR向所述第一⑶N中的CSG发送的,所述第三⑶N与所述第一⑶N签约,所述第二⑶N与所述第三⑶N签约;或者;所述第一⑶N中的CSG是根据获取的所述第二⑶N中的⑶的标识信息,向所述第二CDN中的CD分发与所述内容标识对应的内容的,所述第二CDN中的CD的标识信息是所述 20. The method according to claim 14, wherein said second CDN CSG in the second or CD to acquire the CDN content corresponding to the content identifier comprises: a second or a CSG ⑶N in the second ⑶N ⑶ obtaining the content identifier corresponding to the content of the first ⑶N CSG and transmitted, wherein: the first is based ⑶N a CSG identifier in the acquired second ⑶N a CSG information, and distributing the content to the CSG corresponding to the identifier of the second content in the CDN, the CDN and the second identification information of a CSG is the second in a CSG ⑶N by the CR and the second ⑶N the third ⑶N CR transmitter to a CSG ⑶N the first or the second ⑶N CR CR in the third ⑶N sent to the first ⑶N in a CSG, the third ⑶N ⑶N subscription with the first, the second and the third ⑶N ⑶N subscription; or; ⑶N in the first CSG identifier is based on the obtained information of the second ⑶N ⑶, and to the CD distribution and content corresponding to the identifier of the second content in the CDN, the second identification information in the CDN is the CD 二⑶N中的⑶通过第二⑶N中的CR和第三⑶N中的CR向所述第一⑶N中的CSG发送的, 或者是第二⑶N中的CR通过第三⑶N中的CR向所述第一⑶N中的CSG发送的,所述第三⑶N与所述第一⑶N签约,所述第二⑶N与所述第三⑶N签约。 The two ⑶N ⑶ ⑶N in the second and third ⑶N CR CR in the first ⑶N sent to the CSG, the second or the third ⑶N CR in the CR ⑶N to the first transmitting a ⑶N a CSG, the third and the first ⑶N ⑶N subscription, subscription ⑶N the second and the third ⑶N.
21.根据权利要求14所述的方法,其特征在于,所述第二 CDN中的CD获取与所述内容标识对应的内容包括:所述第二⑶N中的⑶通过第二⑶N中的CR和第三⑶N中的CR向第一⑶N中的CR请求与所述内容标识对应的内容,所述第三CDN与所述第一CDN签约,所述第二CDN与所述第三CDN签约;所述第二⑶N中的⑶获取所述第一⑶N中的CR返回的第一⑶N中的CSG的标识信息;所述第二⑶N中的⑶根据所述第一⑶N中的CSG的标识信息,向所述第一⑶N中的CSG请求与所述内容标识对应的内容;所述第二CDN中的CD获取所述第一CDN中的CSG发送的与所述内容标识对应的内容。 21. A method according to claim 14, wherein said second CD to acquire the CDN content corresponding to the content identifier comprises: a second ⑶N ⑶ by the CR and the second ⑶N the third ⑶N CR CR request to the content corresponding to the content identifier ⑶N in the first, the third and the first CDN CDN subscription, the second and the third CDN CDN subscription; the said second ⑶N obtain identification information of the CSG ⑶ ⑶N in the first in first CR ⑶N return; the second ⑶N in accordance with the identification information of the first ⑶ ⑶N in a CSG, to the CSG request to the content identifier corresponding to the contents of the first ⑶N; CD in the second CDN obtaining the content identifier corresponding to the contents of the first CSG CDN and transmitted.
22.根据权利要求14所述的方法,其特征在于,所述第二 CDN中的CD获取与所述内容标识对应的内容包括:所述第二⑶N中的⑶通过第二⑶N中的CR和第三CDN中的CR向第一⑶N中的CR请求与所述内容标识对应的内容,所述请求对应的请求内容消息中包含所述第二CDN中的CD 的标识信息,所述第三⑶N与所述第一⑶N签约,所述第二⑶N与所述第三⑶N签约; 所述第二⑶N中的⑶获取第一⑶N中的CSG发送的与所述内容标识对应的内容,其中:所述第一CDN中的CSG是根据获取的所述第二CDN中的CD的标识信息向所述第二CDN 中的CD发送与所述内容标识对应的内容的。 22. The method of claim 14, wherein said second CD to acquire the CDN content corresponding to the content identifier comprises: a second ⑶N ⑶ by the CR and the second ⑶N the third CDN CR CR request to the content identifier corresponding to the content of the first ⑶N, the request identifying information corresponding to the content request message includes the second CD in the CDN, the third ⑶N ⑶N subscription with the first, the second and the third ⑶N ⑶N subscription; in the second ⑶N ⑶ obtaining the content identifier corresponding to the content of the first ⑶N CSG and transmitted, wherein: the said first CSG the CDN is transmitted to the CD with the content identifier corresponding to the contents of a CDN according to the second identification information of the acquired second CD of the CDN.
23.根据权利要求15至22任一权利要求所述的方法,其特征在于,所述第二 CDN中的CR包括第二⑶N中的主CR和所述第二⑶N中的主CR选择的第二⑶N中的子CR。 15-22 23. The method according to any one of claims claim, characterized in that the second section comprises the CDN CR ⑶N of the second primary master CR and CR of the second selected ⑶N ⑶N in two sub-CR.
24.根据权利要求19至22任一权利要求所述的方法,其特征在于,所述第三CDN中的CR包括第三⑶N中的主CR和所述第三⑶N中的主CR选择的第三⑶N中的子CR。 24. The method of claim 19 to 22 according to any one of claims claim, wherein said third section comprises the CDN CR ⑶N the third main main CR and CR of the third selected ⑶N ⑶N of three sub-CR.
25.根据权利要求13至22任一权利要求所述的方法,其特征在于,所述第二 CDN未与所述CP/SP签约,所述第二⑶N不能够从所述CP/SP获取所述内容。 25. The method according to any one of claims 13 to 22 as claimed in claim, wherein said second and said unsigned CDN CP / SP, the second can not acquire the ⑶N from the CP / SP said contents.
26. 一种内容获取装置,设置于第二内容分发网络⑶N中,其特征在于,包括获取模块, 用于获取第一CDN中的内容存储实体CSG发送的内容,所述第一CDN与内容提供商CP/业务提供商SP签约,以使所述第一⑶N从所述CP/SP获取所述内容。 26. A content acquisition means, disposed in the second ⑶N content delivery network, which is characterized by comprising an acquisition module for acquiring a CDN contents of the first storage entity CSG transmitted, and the first content providing CDN Suppliers for CP / SP subscription service provider, so obtained from the CP / SP of the content of the first ⑶N.
27. —种内容交付装置,设置于第一内容分发网络⑶N中,所述第一⑶N与内容提供商CP/业务提供商SP签约,以使所述第一⑶N从所述CP/SP获取内容,其特征在于,包括:接收模块,用于获取来自终端的内容请求,用以请求与内容标识对应的内容; 发送模块,用于根据交付策略,向所述终端发送第二CDN中的CR或第二CDN中的CD的标识信息,以使所述终端向第二CDN中的CD请求与所述内容标识对应的内容。 27. - kind of content delivery means, disposed on the first content delivery network ⑶N, the first ⑶N content provider CP / SP subscription service provider, so that the first ⑶N acquired from the CP / SP SUMMARY characterized in that, comprising: a receiving module, configured to acquire the content request from the terminal, for requesting the content corresponding to the content identifier; sending module, configured to deliver the policy, the second transmission of the CDN to the terminal or CR a second identification information in the CDN CD, the CD so that the content request to the content identifier corresponding to the second terminal of the CDN.
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