使用10gbps网络接口卡的硬件辅助进行gbps级应用的可用带宽估计

K. Shimizu, Katsuhiro Sebayashi, S. Kuwabara, M. Maruyama
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引用次数: 0

摘要

为了更有效地利用网络带宽,可用带宽估计(ABE)算法得到了广泛的研究。ABE系统向网络中注入带有定义属性(如IPGs)的探测报文。然后在发送端和接收端进行比较,分析处理后提供可用带宽。我们的目标是为每秒千兆比特级流量的高速网络构建一个有用的ABE系统。为了方便地利用ABE结果,我们在一台现成的PC上构建了一个ABE系统,以便与同一系统中的应用程序紧密合作。现成的PC架构;然而,缺乏精确ABE分析所需的性能。为了打破这种性能限制,我们在10gbps网络接口卡上实现了硬件辅助,这有助于精确控制探测数据包属性和精细分辨率ABE分析。我们在具有gbps级视频流背景流量的实验网络中评估了我们的ABE系统。结果给出了一个准确的估计,尽管在准确性和探测数据包干扰之间存在权衡。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Available bandwidth estimation for Gbps-class applications using 10-Gbps network interface card's hardware assistance
To use network bandwidth more efficiently, an available bandwidth estimation (ABE) algorithm has been extensively studied. An ABE system injects probe packets into networks with defined attributes such as inter-packet gaps (IPGs). Then comparing them in both the sender and receiver provides available bandwidth after analytical processes. Our goals are to construct an useful ABE system for high-speed networks where giga-bit-per-second-class traffic flows. To easily take advantage of the ABE results, we built an ABE system on an off-the-shelf PC to work closely with applications in the same system. An off-the-shelf PC architecture; however, lacks performance required for precise ABE analysis. To break such performance limitations, we implemented hardware assistance, which is useful for accurately controlling probe packet attributes and fine-resolution ABE analysis, in a 10-Gbps network interface card. We evaluated our ABE system in experimental networks with background traffic of Gbps-class video streaming. The results gave an accurate estimation, although there was a tradeoff between accuracy and probe packet disturbance to video streaming.
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