Memory access in Ethernet involves searching address filter table by forming hash key for MAC address in buffer, reading address filter table entries using multiple data read access mode

摘要

The method involves searching an address filter table in a memory by forming a hash key for a MAC address in a multi-row buffer memory in the address filter table and reading first and second address filter table entries from a first section in the buffer memory using a multiple data read access mode. Third and fourth entries are read from a second section of buffer memory. Each entry contains a MAC content, a receive port and a static flag. Independent claims are also included for a memory structure in an Ethernet and for a memory access system.