A Cross-Architectural Quantitative Evaluation of Mobility Approaches
A Cross-Architectural Quantitative Evaluation of Mobility Approaches
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DOI：
10.1109/infocom.2018.8485893
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发表时间：
2018-04
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通讯作者：
Vasanta G. Chaganti;J. Kurose;A. Venkataramani
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作者：
Vasanta G. Chaganti;J. Kurose;A. Venkataramani
未来的互联网架构必须以可扩展并确保低延迟的方式支持移动端点生成的流量的快速增长。我们对处理端点移动性的三种不同方法进行了定量评估：基于名称的转发、间接和全局名称服务 (GNS)。使用一系列参数化移动性分布和真实的 ISP 拓扑，我们描述了每种方法的代表性实例，并使用四个关键指标评估其性能：控制平面中的更新成本和更新传播成本；数据平面中的转发流量成本和连接时间（TTC）。 (1) 我们表明，通过利用现实端点移动性分布显示出位于访问位置的一小部分子集的高概率这一事实，基于名称的转发策略可以比简单的最佳端口转发在控制成本方面提高高达 60%。 (2) 我们证明这些基于名称的转发策略中的 TTC 与 GNS 中的 TTC 相当。 (3) 最后，我们表明，基于 GNS 的方法可以在所有方法、所有端点移动性分布以及所考虑的所有 ISP 拓扑中为 TTC 提供最合适的总（数据和控制组合）成本平衡。
Future Internet Architectures must support the rapid growth of traffic generated by mobile endpoints in a manner that is scalable and ensures low latency. We present a quantitative evaluation of three distinct approaches towards handling endpoint mobility: name-based forwarding, indirection and a global name service (GNS). Using a range of parameterized mobility distributions and real ISP topologies, we describe representative instantiations of each approach and evaluate their performance using four key metrics: update cost and update propagation cost in the control plane; and forwarding traffic cost and time-to-connect (TTC) in the data plane. (1) We show that by leveraging the fact that realistic endpoint mobility distributions show a high probability of being at a small subset of visited locations, name-based forwarding strategies can provide up to 60% improvement in control costs over simple best-port forwarding. (2) We show that the TTC in these name-based forwarding strategies is comparable to the TTC in the GNS. (3) Finally we show that a GNS-based approach offers the most suitable balance of total (combined data and control) cost to TTC across all approaches, all endpoint mobility distributions, and all ISP topologies considered.