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当前,网络业务量的发展都超出了过去最乐观的估计,新的应用层出不穷。负载均衡建立在现有网络结构之上,它提供了一种廉价有效的方法扩展服务器带宽和增加吞吐量,加强网络数据处理能力,提高网络的灵活性和可用性。它主要完成以下任务:解决网络拥塞问题,就近提供服务,实现地理位置无关性;为用户提供更好的访问质量;提高服务器响应速度;提高服务器及其他资源的利用效率;避免了网络关键部位出现单点失效。
At present, the development of network traffic goes beyond the most optimistic estimates of the past, and new applications emerge in endless stream. Built on top of existing network architectures, load balancing provides a cost-effective way to scale server bandwidth and increase throughput, enhance network data processing capabilities and increase network flexibility and availability. It mainly accomplishes the following tasks: To solve the problem of network congestion, to provide services nearby, to achieve geographical independence; to provide users with better access quality; to improve server response speed; to improve the utilization efficiency of servers and other resources; to avoid the emergence of key parts of the network Single point of failure.