RAM, NETWORK PROCESSING SYSTEM AND TABLE LOOK-UP METHOD FOR RAM

摘要

The present invention provides an RAM, a network processing system and a table lookup method for the RAM. The RAM is divided into at least two virtual memory libraries, a same service table is stored in the at least two virtual memory libraries, and a proper virtual memory library is determined through the computation of a network memory to be accessed, so that the table lookup speed of the RAM is improved, the access traffic pressure is effectively reduced for the RAM, and the network forwarding performance is improved. Moreover, a same service table can be stored in the virtual memory libraries of the RAM, the table lookup speed of the RAM is increased maximally, and the network processor can compute the virtual memory library address information through hash computation, so that the computation process is more simple and convenient, a proper virtual memory library can be found more effectively, and the table lookup efficiency and the network forwarding performance are further improved.