Optimising network transfers to and from Queen Mary University of London, a large WLCG tier-2 grid site
Optimising network transfers to and from Queen Mary University of London, a large WLCG tier-2 grid site
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优化往返伦敦玛丽女王大学（大型 WLCG 二级网格站点）的网络传输
DOI：
10.1088/1742-6596/513/6/062048
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
S L Lloyd
中科院分区：
文献类型：
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作者：
C J Walker;D. P. Traynor;D T Rand;T. Froy;S L Lloyd
优化网络性能是Tier-2站点所需的高带宽数据传输的关键。我们描述了我们用来获得良好性能的技术。监控起着关键作用，消除瓶颈和调优TCP窗口大小也是如此。多个并行传输使我们能够在24小时内使1 Gbit/s的链路饱和，同时仍然达到可接受的下载速度。基于源的路由和多个数据传输服务器允许我们使用其他未使用的“弹性”链接。
Optimising network performance is key to high bandwidth data transfers required for a Tier-2 site. We describe the techniques we have used to obtain good performance. Monitoring plays a key part, as does the elimination of bottlenecks and tuning TCP window sizes. Multiple parallel transfers allowed us to saturate a l Gbit/s link for 24 hours - whilst still achieving acceptable download speeds. Source based routing and multiple data transfer servers allowed us to use an otherwise unused "resilient" link.