Investigating the Performance of Link Aggregation on OpenFlow Switches
Investigating the Performance of Link Aggregation on OpenFlow Switches
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研究 OpenFlow 交换机上链路聚合的性能
DOI：
10.1007/978-3-319-13326-3_19
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
and Shigeki Yamada
中科院分区：
文献类型：
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作者：
Toan Nguyen-Duc;Hoang Tran-Viet;Kien Nguyen;Quang Tran Minh,Son Hong Ngo;and Shigeki Yamada
在本文中，我们广泛地探讨了链路聚合(LA)在OpenFlow交换机上的运行，并与传统交换机中的LA进行了比较。在真实的测试床上对两种LA实现进行了比较，并在UDP和TCP流量负载下进行了比较。测试床包括Pica8 P-3925交换机，支持两种模式：OpenFlow交换机(即使用Open vSwitch)和常规交换机(即使用名为XorPlus的操作系统)。评估结果表明，两种LA实现在提高吞吐量方面取得了相似的性能。然而，XorPlus实现提供了比其他实现更好的弹性。具体地说，在XorPlus上实施LA时，将故障链路上的tcp流量切换到链路聚合组(LAG)的其他链路所需的时间不到1.49538秒，而在Open vSwitch上的切换时间要长四倍。对于UDP流量，Open vSwitch上的最大切换时间是XorPlus上的两倍。
In this paper, we extensively explore the operation of Link Aggregation (LA) on OpenFlow switches in comparison to the LA in conventional switches. The comparison of two LA implementations has been conducted in a real testbed under the UDP and TCP traffic loads. The testbed includes Pica8 P-3925 switches, which support two modes: an OpenFlow switch (i.e., using Open vSwitch) and a conventional switch (i.e., using the operating system called XorPlus). The evaluation results show that two LA implementations achieve similar performance in improving throughput. However, the XorPlus implementation provides a better resilience than the other. Specifically, the LA implementation on XorPlus spends less than 1.49538 seconds to switch the TCP traffic on the faulty link to the other links of a Link Aggregation Group (LAG) while the switchover time is four times longer on the Open vSwitch. In the case of UDP traffic, the maximum switchover time on the Open vSwitch is twice the one on XorPlus.