CPU都是路由器的心脏。通常在中低端路由器中，CPU负责交换路由信息、路由表查找以及转发数据包。在上述路由器中， CPU的能力直接影响路由器的吞吐量（路由表查找时间）和路由计算能力（影响网络路由收敛时间）。在高端路由器中，通常包转发和查表由ASIC芯片完成，CPU只实现路由协议、计算路由以及分发路由表。由于技术的发展，路由器中许多工作都可以由硬件实现（专用芯片）。CPU性能并不完全反映路由器性能。路由器性能由路由器吞吐量、时延和路由计算能力等指标体现。
參考答案:Router CPU is the heart. Usually in the mid - and low-end routers, the CPU is responsible for exchanging routing information, routing table search and transmitting data packets. In the router, directly affect the ability of the router CPU throughput (Routing Table Lookup time), and routing capabilities (impact network routing Convergence time). In the high-end router, packets are usually transmitted by the ASIC chip and Lookup completed, CPU only achieve routing protocol. routing and distributed routing table calculation. As technology develops, a lot of work can be determined by the router hardware (ASIC). CPU performance does not fully reflect router performance. Router Performance by the router throughput, delay and routing capacity and other indicators reflect.
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