| 摘要 |
<p>There is disclosed a technique for finding a crossover node existing in an aggregation domain when a QoS route concerning a mobile terminal established via the aggregation domain is modified according to the movement of the mobile terminal. According to the technique, when a new QoS route is established between QNE (local terminal) (101) and QNE (partner terminal) (501), a message is transmitted to QNE (partner terminal) from QNE (303) near a subnet (301) to which QNE (local terminal) is to be connected after the movement. Here, a message is transmitted to search for QNE existing at the branching portion of the QoS route for aggregation before and after the movement of the QNE (local terminal) between the QNE (from QNE 305 to QNE 211) located at the edge of the aggregation domain (227). Upon reception of the message, the QNE (209) recognizes that it is a crossover node, adds its IP address to the message and transfers the message.</p> |
