PACKET PROCESSOR FOR SUPPORTING CSIX-L1 INTERFACE

摘要

PURPOSE: A packet processor for supporting a CSIX-L1(Common Switch Interface Specification-Level 1) interface is provided so as to be compatible with a switch fabric manufactured by another company. CONSTITUTION: A packet processor(300k) for supporting a CSIX-L1 interface consists of a lookup processor(320) and a traffic processor(340). The lookup processor(320) executes the discrimination of packet types and the determination of output ports. The traffic processor(340) provides an interface function to a switch fabric, and manages traffics according to output switch ports. The lookup processor(320) is divided into a data transmitting part and a data receiving part according to packet transfer directions. The data receiving part, composed of an input interface circuit(321), an input parsing part(322), an input search part(323), and an input modification part(324), receives packets from a physical link interface part and transfers them to the traffic processor(340). The data transmitting part, composed of an output interface part, transfers packets, transferred from the traffic processor(340), to the physical link interface part.