| 摘要 |
<p>PURPOSE:To improve reliability by using a control means so as to select an optimum transfer path of a routing table or a transfer path recorded on a call management table through the path selection instruction of a packet. CONSTITUTION:A instructing means 3 writes a path selection instruction in a packet. Then a packet exchange node receiving the packet uses a control means 4 so as to select an optimum transfer path and record the optimum transfer path on a call management table 2 when the optimum transfer path is selected by a routing table 1 according the path selection instruction of the packet. When the transfer path recorded in the call management table 2 is used, the transfer path is selected and the packet is transferred to the selected path.</p> |
