First-generation Layer 3 switches,similar to general purpose routers,were based on CPU architectures that provided flexibility,but limited performance to under 100,000 packets per second (pps) for both switching and routing.

• 第一代第3层交换机与通用路由器相似，是基于CPU的体系结构，这种结构提供了灵活性，但把交换和路由的性能限制在每秒10万包以下。