Internet/Intranet的部署和使用正在迅猛成长,并且导致了企业和消费者计算模式的重大转变。市场已经提出了对流量统计和管理技术的需求,并要求这一技术能有效提供记录网络和应用资源利用率所必须的信息。为此,Cisco系统公司在其IOS交换体系结构中引入一种新的交换技术——NetFlow交换。NetFlow交换在虚拟局域网(VLAN)技术的基础上,在同一个平台上提供了交换和路由两种功能。 The deployment and use of the Internet / Intranet is rapidly growing and has led to a major shift in the way business and consumer computing are made. The market has raised the need for traffic statistics and management techniques and demanded that this technology effectively provide the information necessary to record network and application resource utilization. To this end, Cisco Systems Inc. introduced a new switching technology in its IOS switching architecture - NetFlow exchange. NetFlow switching in the virtual LAN (VLAN) technology, based on the same platform provides both switching and routing functions.