The proliferation of Content Delivery Networks (CDN) reveals that existing content networks are owned and operated by individual companies. As a consequence, closed delivery networks are evolved which do not cooperate with other CDNs and in practice, islands of CDNs are formed. Moreover, the logical separation between contents and services in this context results in two content networking domains. But present trends in content networks and content networking capabilities give rise to the interest in interconnecting content networks. Finding ways for distinct content networks to coordinate and cooperate with other content networks is necessary for better overall service. In addition to that, meeting the QoS requirements of users according to the negotiated Service Level Agreements between the user and the content network is a burning issue in this perspective. In this article, we present an open, scalable and Service-Oriented Architecture based system to assist the creation of open Content and Service Delivery Networks (CSDN) that scale and support sharing of resources with other CSDNs.
翻译:内容提供网络(CDN)的激增表明,现有内容网络由个别公司拥有和运营,因此,封闭的提供网络是发展起来的,与其他内容网络没有合作,实际上,封闭的提供网络是形成的;此外,在这方面,内容和服务之间的逻辑分离导致两个内容联网领域;但内容网络和内容联网能力方面的目前趋势引起了互连内容网络的兴趣;为更好地提供总体服务,必须找到不同内容网络与其他内容网络协调与合作的方法;此外,根据用户与内容网络之间商定的服务级别协议满足用户的QOS要求,是这一方面一个紧迫的问题;在本篇文章中,我们提出了一个开放、可扩展和面向服务的建筑系统,以协助创建开放内容和服务提供网络,扩大和支持与其他内容和服务提供网络的资源分享。