PUBLISHED IN: PROCEEDINGS OF THE INTERNATIONAL WORKSHOP ON CONTENT CACHING AND DELIVERY IN WIRELESS NETWORKS (CCDWN) 2020 1 In-network packet-level caching for error recovery in ICN
PUBLISHED IN: PROCEEDINGS OF THE INTERNATIONAL WORKSHOP ON CONTENT CACHING AND DELIVERY IN WIRELESS NETWORKS (CCDWN) 2020 1 In-network packet-level caching for error recovery in ICN
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发表于：2020 年无线网络内容缓存和交付国际研讨会 (CCDWN) 会议记录 1 ICN 中用于错误恢复的网络内数据包级缓存
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
George C. Polyzos
中科院分区：
文献类型：
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作者：
Y. Thomas;G. Xylomenos;George C. Polyzos
网内数据包级缓存是以信息为中心的网络（ICN）架构的显著特征之一，可减少通信延迟、发送方负载和网络流量。关于ICN缓存的文献相当广泛，深入探讨了缓存的不同方面，例如网络中存储资源的定位，各个缓存的缓存策略，以及缓存和路由的交互。然而，许多研究人员质疑网络缓存的价值，认为ICN路由器有限的存储资源无法消除大量的冗余传输，因此网络缓存的性能优势可能与传统的边缘缓存相似。然而，还有另一个潜在的使用innetwork缓存，提出了挑战性较小的存储要求：利用它来提高效率的错误恢复，通过加快丢失的数据包的重传。在本文中，我们调查的影响，在网络数据包级缓存传输层错误恢复。我们首先勾勒出一个重传导向的数据包级缓存方案，突出的性能要求相比，通用缓存的差异。然后，我们在延迟和网络流量减少方面对其预期收益进行建模和评估，最后，我们根据当前的网络要求和硬件规范对该方法进行现实检查。
In-network packet-level caching is one of the salient features of Information-Centric Networking (ICN) architectures, offering reduced communication latency, sender load, and network traffic. The literature on ICN caching is quite extensive, exploring in depth different aspects of caching, such as the positioning of storage resources in the network, the caching policies of individual caches, as well as the interaction of caching and routing. However, many researchers have questioned the value of in-network caching, arguing that the limited storage resources of ICN routers cannot eliminate a significant amount of redundant transmissions, hence the performance advantages of in-network caching may be similar to those of traditional edge-caches. Nevertheless, there is another potential use of innetwork caching that poses less challenging storage requirements: exploiting it to enhance the efficiency of error recovery by speeding-up retransmissions of lost packets. In this paper, we investigate the impact of in-network packet-level caching on transport-layer error recovery. We first sketch a retransmissionoriented packet-level caching scheme, highlighting the differences in the performance requirements compared to general-purpose caches. Then we model and assess its expected gains in terms of latency and network traffic reduction, and finally we provide a reality check of the approach based on current network requirements and hardware specifications.