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为了控制LAN中的信息流量,提供安全性,人们通常在LAN中使用路由器,将它作为子网间的互联设备。但传统路由器通常依靠软件和通用CPU来实现控制功能,因而延迟大、转发速度慢,跟不上高速交换网络,尤其是千兆以太网的要求,Intranet的发展更是加剧了路由器对网络性能的负面影响,在Intranet里,80％的信息流量可能发生在子网间,虽然路由器提供了必要的控制功能,但也成了网络的瓶颈。能不能将交换的高速性能与路由的控制功能结合起来呢
In order to control the flow of information in the LAN and provide security, people usually use a router in the LAN as an interconnection device between subnets. However, traditional routers usually rely on software and general-purpose CPUs to implement control functions. As a result, delays and forwarding speeds are slow, failing to keep up with high-speed switching networks, especially Gigabit Ethernet. The development of intranets further exacerbates the impact of routers on network performance Negative impact, in the Intranet, 80% of the information flow may occur in the subnet, although the router provides the necessary control functions, but it has become the bottleneck of the network. Can exchange high-speed performance and routing control function together?