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cdn control function
Vertaling van "cdn control function" in Chinees
CDN控制功能实体
Wherein, the CDN control function comprises a first receiving module, a first selection module and a first transmitting module.
其中，CDN控制功能实体，包括：第一接收模块、第一选择模块、第一发送模块。
Step 303, the CDN control function receiving the session initiation request for media file uploading determines one or more CDN nodes required to save the media file (or called media content) according to the load information of the CDN nodes managed by it and the condition whether the received session initiation request contains information on a specific region.
步骤303，接收到媒体文件上传的会话初始化请求的CDN控制功能实体根据其管理的各CDN节点的负载信息及接收到的会话初始化请求中是否含有特定区域的信息确定需要保存该媒体文件（或称为媒体内容）的一个或多个CDN节点。
A content delivery network, which is characterized in that the content delivery network comprises a CDN control function and more than one CDN nodes; wherein,
一种内容分发网络，其特征在于，包括：CDN控制功能实体和一个以上CDN节点；其中，
The method according to claim 1 is characterized in that before the CDN control function receives the session initiation request, the method also comprises the following steps
根据权利要求1所述的方法，其特征在于，所述CDN控制功能实体接收到所述会话初始化请求之前，所述方法还包括：
Fig. 5 is a diagram illustrating the structure of the content delivery network of the embodiment of the invention. As shown in Fig. 5, the content delivery network according to the embodiment of the invention mainly comprises: a CDN control function 1 and one or more CDN nodes 3 (one CDN node is shown in the figure).
图5为根据本发明实施例的内容分发网络的结构示意图，如图5所示，根据本发明实施例的内容分发网络主要包括：CDN控制功能实体1和一个或多个CDN节点3（图中示出了一个CDN节点）。
The CDN control function 15 completes the selection of the cluster control function 16. Generally, a CDN network is possibly provided with one or more CDN control functions, among which interaction is required to complete the selection of the cluster control function 16.
CDN控制功能实体15，完成群集控制功能实体16的选择，通常在一个CDN网络中可能有1个或者多个该功能实体，CDN控制功能实体15之间需要相互交互来进行群集控制功能实体16的选择。
Wherein, the second receiving module is used for receiving the session request sent by the CDN control function; the second selection module is used for select a content delivery function according to the load condition information of the content delivery function(s) in the CDN node/CDN nodes with the cluster control function(s); the session establishment module is used for establishing sessions between the cluster control function(s) and the content delivery function selected by the second selection module; the second transmitting module is used fro sending the attribute information of the session established by the session establishment module to the user equipment.
其中，第二接收模块，用于接收CDN控制功能实体发送的会话请求；第二选择模块，用于根据群集控制功能实体所在的CDN节点中各个内容交付功能实体的负载状态信息，选择一个内容交付功能实体；会话建立模块，用于建立群集控制功能实体与第二选择模块选择的内容交付功能实体的会话；第二发送模块，用于将会话建立模块建立的会话的属性信息发送给用户设备。
a second receiving module, used for receiving the session request sent by the CDN control function
第二接收模块，用于接收所述CDN控制功能实体发送的所述会话请求；
The CDN control function returns the received confirmation message back to the user equipment, and the user equipment uploads the content or uplinks the media stream to the content delivery function selected by the cluster control functions according to the confirmation message.
所述CDN控制功能实体将接收到的确认信息返回给用户设备，所述用户设备根据所述确认信息将内容上传或将媒体流上行至各个群集控制功能实体选择的内容交付功能实体。
Step 306, the cluster control function sends a response message to the CDN control function, the response message contains the path information about the content delivery function saving the media file uploaded by the user equipment, namely, the IP address and port, etc; optionally, the response message can also contain information on band width required for uploading the media file
步骤306，群集控制功能向CDN控制功能发送响应消息，该响应消息中携带有保存用户设备上传的媒体文件的内容交付功能实体的路径信息，即IP地址、端口等信息，可选地，还可以携带媒体文件上传所需要的带宽信息等；
Step 406, the cluster control function sends a response message to the CDN control function, and the response message contains the session identifier information of the setup RTSP and resource information such as the band width
步骤406，群集控制功能向CDN控制功能发送响应消息，该响应消息中包含有建立的RTSP的会话标识符信息、带宽等资源信息；
The service control function or IPTV service control function sends the session initiation request to the CDN control function after receiving the request message.
所述业务控制功能实体或IPTV服务控制功能实体接收到所述请求消息后，向所述CDN控制功能实体发送所述会话初始化请求。
Step 407, the CDN control function forwards the information contained in the received response message to the IPTV service control function or service control function
步骤407，CDN控制功能实体将接收到的响应消息中携带的信息转发给IPTV服务控制功能实体或者业务控制功能实体；
Synoniemen voor cdn control function in het Engels
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