System and method for securing service lelel in content distribution network

Abstract

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...

AI Technical Summary

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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