Data caching system and method for ethernet device

Abstract

A data caching method for an Ethernet device is provided. The method includes: receiving data frames from various Ethernet interfaces and converting the Ethernet data frames received from the Ethernet interfaces into data frames having a uniform bit width and a uniform encapsulation format; maintaining a cache address in which data has already been written and a currently idle cache address in a cache; receiving the currently idle cache address and generating a write instruction and/or a read instruction for the cache and performing a write operation and/or a read operation so as to write the data received and processed by an IPC into the currently idle cache or to read data from the cache; and performing bit conversion and format encapsulation on the data that is read according to a read request and outputting the data subjected to the bit conversion and the format encapsulation through a corresponding Ethernet interface. A data caching system for an Ethernet device is also provided. By means of the data caching method and system provided herein, the expandability and the high bandwidth storage capacity of a network switching device can be improved, a high bandwidth utilization rate is achieved, and it becomes possible to improve bandwidth utilization rate based on traffic management.