| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide techniques to efficiently filter fragmented datagrams and route fragments. <P>SOLUTION: For each fragmented datagram, a filtering node obtains filter parameters when fragments of the datagram are received, When all filter parameters are available, the node applies one or more filters on the filter parameters to obtain a filter result for the datagram and stores the filter result in an entry in a routing table. When the filter result becomes available, the node processes all fragments already received for the datagram in accordance with the filter result. As each remaining fragment for the datagram is received, the node immediately processes the fragment in accordance with the filter result. When the last fragment is received, the node clears the memory and the routing table entry for the datagram. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
