T比特路由器高速转发引擎的设计与实现

Design and Implementation of High-speed Forwarding Engine in Terabit Router

设计并实现了T比特路由器中的转发引擎模块,该模块采用基于子模块处理器的并行转发结构,基于FPGA的并行流水线处理技术,结合分段查表算法,实现了10GPOS接口,IPv4/v6双协议栈的线速转发。试验测试表明该引擎能高效、稳定地达到设计目标,充分满足T比特路由器的整体需求。

The forwarding engine of terabit router is designed and implemented. The module adopts parallel forwarding structure based on sub-module processor and parallel pipelining based on FPGA. The subsection routing lookup algorithms is used.They satisfy IPv6 and IPv4/IPv6 dual-stack core touters＇ OC- 192 （10Gbps） interfaces＇ wire-speed forwarding. Analysis and experiment prove that the performance of the forwarding engine can reach the design aim effectively and satisfy the whole demands of terabit router.