Back-to-source routing information generation and transmission methods, and related devices

A transmission method and routing technology, applied in the Internet field, can solve problems such as poor network conditions, slow back-to-source speed, and back-to-source failure.

Inactive Publication Date: 2017-12-26
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, since the source site is not an internal device of the CDN system, there may be problems such as poor network conditions and long transmission distances between

Method used

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  • Back-to-source routing information generation and transmission methods, and related devices
  • Back-to-source routing information generation and transmission methods, and related devices
  • Back-to-source routing information generation and transmission methods, and related devices

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Embodiment Construction

[0077] In the traditional access process, the user equipment directly accesses the source station to obtain the required network resources from the source station. The CDN technology is actually to accelerate the traditional access process. During the access process using CDN technology, the user equipment sends an access request to the CDN cache server. The access request indicates the network resources required by the user equipment. If the CDN cache If the server caches the network resource, it directly returns the network resource to the user equipment. If the CDN cache server does not cache the network resource, the CDN back-to-origin process is performed, that is, the CDN cache server starts from the source The station obtains the network resources, caches them in the CDN cache server and returns them to the user equipment.

[0078] At present, the direct return-to-origin method is usually adopted in the CDN back-to-origin process. The CDN cache server generates back-to-sou...

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PUM

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Abstract

The embodiment of the invention provides back-to-source routing information generation and transmission methods, and related devices, used in the back-to-source process of a CDN. The generation method comprises the steps that: a first CDN cache server obtains the first network distance, the second network distance and the third network distance; the first CDN cache server determines that the first network distance is greater than the sum of the second network distance and the third network distance, generates back-to-source routing information, and sends the back-to-source routing information to a second CDN cache server; and a back-to-source routing path indicated by the back-to-source routing information passes through the first CDN cache server, the second CDN cache server and a source station. Visibly, in the embodiment of the invention, according to the network distance between the source station and the CDN cache server, when the fact that back-to-source routing in indirect back-to-source is superior to that in direct back-to-source is determined, indirect back-to-source routing is adopted; therefore, the back-to-source speed is increased; and furthermore, the back-to-source error rate is reduced.

Description

Technical field [0001] This application relates to the field of Internet technology, and in particular to a method for generating and transmitting back-to-source routing information and related devices. Background technique [0002] The content delivery network (English: Content Delivery Network, abbreviated: CDN) technology can achieve the purpose of accelerating access by setting up a CDN cache server between the user equipment and the origin site. [0003] The access process using CDN technology includes: the user equipment sends an access request to the CDN cache server, the access request indicates the network resources required by the user equipment, and if the CDN cache server caches the network resources, it directly sends the access request to the user The device returns the network resource. If the CDN cache server does not cache the network resource, the network resource is obtained from the source site, and the network resource obtained from the source site is cached in...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L45/122
CPCH04L67/568H04L67/63H04L43/08H04L67/1021H04L45/20H04L67/10
Inventor 黑锦源
Owner ALIBABA GRP HLDG LTD
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