System and method for securing service lelel in content distribution network
A content distribution network and service level technology, applied in the field of service level agreement management, it can solve the problems of no disclosure, no solution to SLA monitoring and reporting, and no way to know whether the SLA has been met, so as to enhance satisfaction and retention, improve The effect of service management quality
Active Publication Date: 2006-11-08
HUAWEI TECH CO LTD
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Problems solved by technology
[0006] 1. This solution is mainly based on cost analysis and the minimum QoS indicators that must be met to allocate CDN resources, but it does not disclose how the CDN guarantees the user's SLA
[0007] 2. This solution only discloses the provision of services based on the so-called selective resource allocation and cost calculation, and does not solve the problem of monitoring and reporting of the user's SLA during the execution process
[0008] Moreover, so far there is no technical solution to quantify the real level of service provided in the CDN, and users cannot know whether the required SLA is met when using CDN-related services
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[0046] The present invention will be further described in detail below through specific embodiments and accompanying drawings.
[0047] The core technical solution of the present invention is: setting and saving the SLA information signed by the user and the CDN service provider in the CDN. When a user accesses the CDN, the service quality index in the user's SLA is mapped to the network performance index, and the CDN path and CDN node that meet the requirements of the network performance index are selected to provide services for the user's request. In addition, when providing services, the GSLB of the CDN obtains the network performance parameters of the current CDN, and judges whether the relevant network performance parameters of the CDN network paths and CDN nodes that provide the current service meet the network performance obtained from the service quality index mapping of the user SLA If yes, continue to collect the current network performance parameters; otherwise, re...
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The present invention discloses a system and method for ensuring service level in content dispensing network (CDN).Said system is set in CDN, which includes service level protocol (SLA) unit and global system load balancer (GSLB); wherein said SLA unit used for configuring and saving SLA between user and CDN service provider to realize mapping between service quality indices and network performance indices; GSLB used for accessing user service request, according to current CDN network performance status, select CDN route and node fitting said SLA service quality indices mapped network performance indices requirement as current user request to provide service. The present invention can insure user required service level and raise CDN network service quality of management.
Description
technical field [0001] The invention relates to a service level guarantee technology of a communication system, in particular to a method and system for realizing service level agreement (SLA, Service Level Agreement) management in a content distribution network (CDN). Background technique [0002] Content Distribution Network (CDN) is an advanced traffic distribution network built on the existing Internet (Internet). The network stores the content in the original server of the CDN content provider (CP, Content Provider) in the distributed cache server (Cache Server), and sends the user request through the global load balancer (GSLB, Global Server Load Balance) of the network. Automatically point to the cache server that is healthy, available and closest to the user, so as to improve the response speed of user access and service availability, and improve the service quality on the Internet. Since the content distribution network can effectively improve the utilization effic...
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IPC IPC(8): H04L12/24H04L29/06
Inventor 李德旭侯满仓张小利朱志军
Owner HUAWEI TECH CO LTD