在SDN-NFV运营商基础设施上部署内容交付服务功能链

Nicolas Herbaut, D. Négru, D. Magoni, P. A. Frangoudis
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引用次数: 8

摘要

越来越多的视频消费使得内容的传递在当前的互联网中难以为继。互联网服务提供商(ISP)与内容提供商和内容分发网络(CDN)在增值服务方面的竞争非常艰难。我们提出了一种内容交付参与者之间的新合作模式,cdn可以将其软件作为NFV模块部署到互联网服务提供商的基础设施中。由于ISP的网络状态必须保持私有,因此使用高级SLA来协商计算资源和连通性,将优化服务器放置和路由留给ISP。本文的贡献在于将该问题形式化为业务功能链嵌入问题,并提出了一种优化业务功能链的算法,以提高嵌入概率,减少嵌入过程中消耗的带宽。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Deploying a content delivery service function chain on an SDN-NFV operator infrastructure
Increasing over-the-top video consumption makes the delivery of content unsustainable in the current Internet. The Internet Service Providers (ISP) have a hard time competing on value-added services with content providers and content delivery networks (CDN). We propose a new model of collaboration between content delivery actors where CDNs can deploy their software in Internet Service Providers' infrastructures as NFV modules. As the ISP network state has to be kept private, a high-level SLA is used to negotiate both computing resources and connectivity, leaving it up to the ISP to optimize server placement and routes. The contribution of this paper is to formalize this problem as a Service Function Chaining Embedding problem, and to propose an algorithm to optimize the Service Function Chain to improve embedding probability and decrease consumed bandwidth in the process.
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