HIGH-SPEED ROUTING LOOKUP METHOD AND DEVICE SIMULTANEOUSLY SUPPORTING IPV4 AND IPV6

摘要

Disclosed are a high-speed routing lookup method and device simultaneously supporting IPv4 and IPv6, which relate to the technical field of network switching. The device comprises three parts, i.e. a routing lookup algorithm software module, a routing update interface module and a routing lookup hardware module, wherein the routing lookup algorithm software module completes software calculations and update entry instruction issuance for a routing entry; after receiving a software update entry instruction, the routing update interface module controls a data stream of the routing lookup hardware module according to the actual operating state of the routing lookup hardware module, and writes an update entry into a memory of the routing lookup hardware module; and the routing lookup hardware module is in a two-way parallel pipelined architecture, respectively responds to IPv4 and IPv6 routing lookup requests of a hardware system, and returns a lookup result of the longest prefix match.