The Internet at the Speed of Light
The Internet at the Speed of Light
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DOI：
10.1145/2670518.2673876
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发表时间：
2014-10
期刊：
影响因子：
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通讯作者：
Ankit Singla;B. Chandrasekaran;Brighten Godfrey;B. Maggs
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文献类型：
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作者：
Ankit Singla;B. Chandrasekaran;Brighten Godfrey;B. Maggs
对于许多互联网服务，减少延迟可以改善用户体验，并增加服务提供商的收入。虽然在原则上，光速几乎可以与光速相匹配，但我们发现，基础设施效率低下和协议开销导致今天的互联网比这个界限慢得多：通常超过一个数量级，通常超过两个数量级。弥合这一巨大差距不仅会增加当今互联网应用的价值，而且还可能为令人兴奋的新应用打开大门。因此，我们为网络研究界提出了一个巨大的挑战：光速互联网。为了告知这个研究议程，我们调查了整个网络堆栈中互联网延迟膨胀的原因。我们还讨论了几种改进延迟的广泛途径。
For many Internet services, reducing latency improves the user experience and increases revenue for the service provider. While in principle latencies could nearly match the speed of light, we find that infrastructural inefficiencies and protocol overheads cause today's Internet to be much slower than this bound: typically by more than one, and often, by more than two orders of magnitude. Bridging this large gap would not only add value to today's Internet applications, but could also open the door to exciting new applications. Thus, we propose a grand challenge for the networking research community: a speed-of-light Internet. To inform this research agenda, we investigate the causes of latency inflation in the Internet across the network stack. We also discuss a few broad avenues for latency improvement.