US Patent 7324520 Method and apparatus to process switch traffic

A system and method for reassembling c-frames into coherent packets are disclosed. C-frames contain segments of a data set. A micro-engine operating multiple threads copies the data set segments into assigned queues, following a thread hierarchy to keep the segments in order. The queues are stored in SRAM. The micro-engine maintains a subset of the total number of queues in local memory. If a segment belongs to a queue not in local memory, the least recently used queue is copied to SRAM, the required queue is read from SRAM, and the queue is updated with the data set segment.