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uLoBal: Enabling In-Network Load Balancing for Arbitrary Internet Services on SDN

机译：Ulobal：在SDN上启用网络负载平衡，可在SDN上进行任意互联网服务

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Today's networks should support the increasing demand required by large workloads generated by users who consume several types of service over the Internet. However, the users demand increases at a much higher rate than the networks can evolve due to a number of constraints, including economic reasons. Thus, it is a common practice to adopt load balancing in order to use network resources more efficiently. Although load balancers are an effective way of improving current networks, most of the existing implementations are based on hardware products and dedicated to specific types of services, which is not a good alternative due to the highly dynamic nature of the Internet. In order to address the nature of today's networks, the Software-Defined Networking (SDN) provides an architecture that allows the network to be fully programmable, opening the possibility of implementing such load balancing mechanisms on top of a network controller that provides optimal management of resources. This paper presents uLoBal, an SDNbased load balancer that is able of performing flexible and generic load balancing of arbitrary services through the use of manageable forwarding algorithms that address most of the service types and natures. uLoBal is efficient to load balance services on unstructured networks by considering both network and servers' load metrics. The proposal was evaluated in the Mininet emulation environment and shows an improvement on load balancing, providing better use of network resources and user experience.
机译：今天的网络应该支持在互联网上消耗几种服务的用户生成的大型工作负载所需的不断增长的需求。但是，用户需求以比网络的数量增加更高的速率增加，包括经济原因。因此，采用负载平衡是一种常见的做法，以便更有效地使用网络资源。虽然负载均衡器是改进当前网络的有效方式，但大多数现有实现都基于硬件产品并专用于特定类型的服务，这不是由于互联网的高度动态性质而产生的良好替代方案。为了解决当今网络的性质，软件定义的网络（SDN）提供了一种允许网络完全可编程的架构，打开在网络控制器顶部实现提供最佳管理的载荷平衡机制的可能性资源。本文介绍了Ulobal，一个SDNBASED负载平衡器，通过使用可管理的转发算法来执行任意服务的灵活和通用负载平衡，该算法解决了大多数服务类型和自然。 Ulobal通过考虑网络和服务器的负载指标，可以有效地在非结构化网络上加载平衡服务。该提案在Mininet仿真环境中进行了评估，并对负载均衡进行了改进，提供了更好地利用网络资源和用户体验。

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