以太网三层交换机驱动程序的设计

Layer 3 switch, with the all characteristics of layer 2 switch, can switch IP packets in line speed according to destination IP address. It is possible to construct high speed, high performance and large scale LAN with layer 3 switch network devices. With the development of ASIC technology, Layer 3 switch has the higher performance and the lower price. Currently, layer 3 switch network devices have spread from the core of network to the edge of network. It occupies a large part of network devices market. In this paper, it introduces the design of Ethernet layer 3 switch’s driver, main including two parts: high-level architecture design and function module design.