Department of Computer Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran
Usually in the form of parallel processing with parallel multi-processor systems are designed .For this reason irregular flow may occur with packages. When you're tired and it all comes out in his NP (Network Processors) system, Reset depending on network performance is negatively affected and we delayed To do this, The design of processors working in parallel packet transmission by avoiding any packet reordering occur, If reordering, this time delay is minimal. Several algorithms have been proposed in recent years. In this paper, we will describe some of the fundamental concepts involved in NP architecture and algorithms packet reordering in recent years, which causes delays are minimized packet reordering, the evaluation will be compared.