Luis Augusto Dias Knob, R. Esteves, L. Granville, L. Tarouco
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引用次数: 11
Abstract
Internet Exchange Points (IXPs) play a key role in the Internet architecture, enabling cost-effective connections among multiple autonomous systems (ASes). The management of IXP networks includes the activity of taking care of elephant flows; they represent a small number of the total flows of an IXP, but have high impact on the overall network traffic. Managing elephant flows involves adequate identification and eventually rerouting of such flows to more appropriate locations, to minimize the possible negative impact on the other (mice) flows. Elephant flow management becomes even more important in SDN-based IXPs that require controllers to have a consistent view of the underlying network to allow fine-grained adjustment. In this paper, we propose, develop, and evaluate a recommendation system to suggest alternative configurations to previously identified elephant flows in an SDN-based IXP network. In our solution, the IXP operator can define templates that ultimately define how elephant flows can be rerouted to achieve a specific objective. We demonstrate that our system can help IXP operators to mitigate the impact of elephant flows on the IXP network.
Internet交换点(Internet Exchange point, ixp)在Internet体系结构中起着关键作用,能够在多个自治系统(自治系统)之间实现经济高效的连接。IXP网络的管理包括照顾大象流动的活动;它们只占IXP总流量的一小部分,但对整个网络流量有很大影响。大象流的管理包括充分识别并最终将这些流重新路由到更合适的位置,以尽量减少对其他(老鼠)流可能产生的负面影响。大象流管理在基于sdn的ixp中变得更加重要,因为它要求控制器具有底层网络的一致视图,以便进行细粒度的调整。在本文中,我们提出、开发和评估了一个推荐系统,为基于sdn的IXP网络中先前识别的大象流提供替代配置建议。在我们的解决方案中,IXP操作符可以定义模板,这些模板最终定义如何重路由大象流以实现特定目标。我们证明了我们的系统可以帮助IXP操作员减轻大象流对IXP网络的影响。