The adaptive SAR technology in non-ATM network node

The IP packet length distribution is changing with Internet development and traffic. A different network also has a different IP packet length distribution. The IP packet processing methods of many nonATM network nodes are similar with segment and reassemble (SAR). The payload length of the cell is fixed. When the network node is placed in a network, a large number of redundant bytes, which result from the zero-pads and headers being used, decrease the processing bandwidth. When a well-designed node is placed in a different network with different distribution, the processing bandwidth of the node may be even lower. We present an adaptive IP packet SAR processing solution, which can adapt the traffic of the network. Computer simulations based on the packet length statistic data are also given.