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。