3 Layer3 packet forwarding handling method and apparatus in gigabit Ethernet based router

摘要

The present invention relates to packet forwarding processing in a Gigabit Ethernet-based router. The present invention relates to a result of a lookup that guarantees gigabit wire-speed for implementing fast forwarding that satisfies gigabit-speed traffic in a Gigabit Ethernet system. The present invention provides a parallel processing type 3 layer packet forwarding processing method and apparatus for enabling packet forwarding in real time by using a port memory as a buffer and performing parallel processing type packet forwarding by a hardware method to improve router system performance.;The present invention can reduce the processing time to enable gigabit speed processing, guarantee the packet processing by the result of the lookup within a certain time delay without the involvement of the processor, and simplify the circuit by parallel processing separately from the input processing. There is a cost saving effect through.