ALR Switching and Routing Strategy for Multiple Sites Based on Traffic Splitting Method for Power Saving
ALR Switching and Routing Strategy for Multiple Sites Based on Traffic Splitting Method for Power Saving
复制标题
基于流量分流节能的多站点ALR切换路由策略
DOI：
10.1109/candarw57323.2022.00063
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Kimura Shigetomo
中科院分区：
文献类型：
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作者：
Zhang Chao;Kimura Shigetomo
近年来，随着互联网流量的增长，网络设备的能耗也在迅速增加，因此研究人员一直致力于降低网络设备能耗的方法。Uchida等人提出了一种基于流量分割方法的OpenFlow网络的ALR（自适应链路速率）切换方法。他们的方法基于DSCP字段将流量拆分为旁路，以便当流量处于“中间”速率时，最短路径上的链路可以保持低速。然而，该方法仅考虑了只有一个站点与具有进入因特网的网关的不同站点通信的情况。当同一组织网络中的多个站点采用这种方法时，由于旁路可能不仅是旁路，而且可能是其他站点的最短路径，因此会引起冲突。为了解决这个问题，本文扩展的方法，通过分配开关的四个状态之一，以避免可能的冲突，在旁路，使多个站点可以通过网关与主机在同一时间进行通信。实验结果表明，与普通ALR相比，该算法的功耗降低了5.30%，与普通网络相比，功耗降低了12.39%。
In recent years, researchers have focused on methods to reduce the network devices' energy consumption since it is increasing rapidly with the growth of internet traffic. Uchida et al. proposed an ALR (Adaptive Link Rate) switching method for OpenFlow networks based on the traffic splitting method. Their method split the traffic to a bypass based on DSCP field so that the link on the shortest path can remain low speed when the traffic is at an “intermediate” rate. However, the method merely considered the situation where only one site communicates with a different site which has a gateway into the Internet. When multiple sites in the same organization network adopt this method, a conflict will be caused since the bypass may not only be a bypass but also be the shortest path for other sites. To solve this problem, this paper extends the method by assigning the switches to one of four states to avoid possible conflict in the bypass so that multiple sites can communicate with a host via the gateway at the same time. The results show that power consumption is reduced by 5.30% compared to the general ALR and 12.39% compared to the normal network.