计算机科学 ›› 2015, Vol. 42 ›› Issue (11): 59-62.doi: 10.11896/j.issn.1002-137X.2015.11.011
吴洁,付斌章,陈明宇,张立新
WU Jie, FU Bin-zhang, CHEN Ming-yu and ZHANG Li-xin
摘要： OpenFlow采用数据平面与控制平面分离的架构,以软件实现的OpenFlow控制器作为控制平面对网络进行集中控制。在这种分离架构中,由于交换机需要与控制器进行交互,因此必然会产生一定的时间开销。经实验,数据流建立过程中的信息交互导致数据包传输时延至少增长2倍,严重降低了网络性能。因此,量化分析OpenFlow网络中流建立开销具有重要意义。分析流建立开销产生的原因,对导致数据包传输时延增长的影响因素进行量化分析。 评估流建立开销对网络性能的影响是量化分析数据流路径建立开销的重点。
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