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A content data transmission method and device

A content data and content source technology, applied in the field of communication, can solve problems such as complex business logic, and achieve the effect of reducing load and business logic complexity

Active Publication Date: 2021-01-05
HUAWEI CLOUD COMPUTING TECH CO LTD
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Problems solved by technology

[0006] The embodiment of the present application provides a method and device for content data transmission, which solves the problems of increased load on reflective nodes and complex business logic when the application layer is implemented when the optimal transmission link is not a direct link

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  • A content data transmission method and device
  • A content data transmission method and device
  • A content data transmission method and device

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Embodiment Construction

[0052] In CDN, dynamic content data and live content data cannot be cached in the content receiving node in advance, and must be obtained from the content source node in real time. In the prior art, the optimal transmission link between the content source node and the content receiving node can be determined by using the overlay intelligent routing technology, so as to ensure the transmission quality. Exemplarily, as in figure 1 In the overlay network shown, the RTT between each CDN node can be obtained by using the overlay intelligent routing technology to detect the RTT between each CDN node, and the content source can be determined according to the obtained RTT between each CDN node The optimal transmission link between the node and the content receiving node. For example, see figure 1 , there are 9 CDN nodes in the overlay network, namely: Beijing Telecom, Shanghai Telecom, Lanzhou Telecom, Wuhan Telecom, Hangzhou Telecom, Zhejiang Telecom, Fujian Telecom, Guangzhou Tele...

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Abstract

The embodiments of the present invention disclose a content data transmission method and device and belong to the communication field. With the method and device adopted, the problem of the load increase of a reflection node and the complexity of service logic during the implementation of an application layer under a condition that an optimal transmission link is not a direct connection link can be solved. According to the method, when a CDN collaboration server confirms that back-to-source service quality between a content source node and a content receiving node triggers a path adjustment threshold, an optimal transmission link between the content source node and the content receiving node is determined; network configuration information containing flow forwarding configuration information is determined according to the optimal transmission link; when the optimal transmission link is a non-direct connection link, the flow forwarding configuration information is the information of a tunnel between the egress network device of the content source node and the egress network device of the reflection node, wherein the tunnel is used for transmitting to-be-downloaded content data requested by the content receiving node, and sending the network configuration information to a SDN controller, so that the SDN controller updates the flow forwarding configuration of the egress network device of the content source node according to the network configuration information.

Description

technical field [0001] The embodiments of the present application relate to the communication field, and in particular, to a content data transmission method and device. Background technique [0002] Content Delivery Network (CDN) is a layer of intelligent virtual network formed on the basis of the existing Internet by setting up CDN nodes (a CDN node can include several content cache servers) all over the network. Its essence is an overlay network built on the Internet. CDN can publish network content from the content source node to the network "edge" (hereinafter referred to as: content receiving node) closest to the user, so that the user can obtain the required content data nearby, relieve the network congestion of the Internet, and improve the ability of the user. Get the quality of service of a service or business. Wherein, the content source node refers to an ingress CDN node for content data forwarding, and the content receiving node refers to an egress CDN node fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
CPCH04L41/0803H04L45/70
Inventor 薛传颂
Owner HUAWEI CLOUD COMPUTING TECH CO LTD
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