Method and system for a multi-level memory

摘要

A method and system is provided for a multi-level memory. The system includes an internal memory and an external memory. Data packets are received through one or more input ports and initially stored in the internal memory. A control unit determines whether there is congestion of resources within the system and transfers data packets to external memory to ease the congestion. Data packets are eventually transferred from the internal or external memory to one or more output ports.