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首页> 外文期刊>International journal of communication systems >A new carrier grade aggregation network model for delivering broadband services to fast moving users
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A new carrier grade aggregation network model for delivering broadband services to fast moving users

机译：一种新的运营商级汇聚网络模型，可为快速移动的用户提供宽带服务

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摘要

In this article, we present the research challenges that are associated with designing a cost-effective network architecture for delivering broadband services to fast moving users (e.g. in trains). We specifically extended the standard Switched Ethernet technology towards a truly Carrier Grade network solution for fast moving users. Prototype implementations allow us to evaluate dynamic tunnel setup mechanisms and to prove that fast Ethernet recovery is feasible by extending the existing spanning tree mechanisms. For architectures with multiple spanning trees the problem arises as to how the spanning trees have to be configured. Therefore, we propose time-efficient algorithms which solve the problem of aggregating paths into a minimal set of spanning trees. In the performance evaluation section, we compare vulnerable centralized backup systems to systems relying on distributed spanning tree-based recovery and it is shown that the former require more spanning tree instances to be configured than the latter for the same set of backup paths. The presented methods and results show that Ethernet technologies are well suited for building flexible and robust network solutions that can support fast moving users.
机译：在本文中，我们提出了与设计经济高效的网络体系结构相关的研究挑战，以便为快速移动的用户（例如火车）提供宽带服务。我们专门将标准交换式以太网技术扩展为面向快速移动用户的真正电信级网络解决方案。原型实现使我们能够评估动态隧道建立机制，并通过扩展现有的生成树机制来证明快速以太网恢复是可行的。对于具有多个生成树的体系结构，出现了如何配置生成树的问题。因此，我们提出了一种节省时间的算法，该算法解决了将路径聚合到最小的生成树集合中的问题。在性能评估部分，我们将易受攻击的集中式备份系统与依赖于基于分布式生成树的恢复的系统进行了比较，结果表明，对于同一组备份路径，前者需要配置的生成树实例要多于后者。提出的方法和结果表明，以太网技术非常适合构建可支持快速移动用户的灵活而强大的网络解决方案。

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