| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide optical transport systems, particularly a system and a method for protecting traffic in a hubbed optical ring network, and more particularly to provide the optical ring network with a fault protection in accordance with the actual utilization when network topologies are configured therein. <P>SOLUTION: Since there is provided a function for selectively forwarding or terminating the traffic to a hub node 14 at which a core network having the Internet contents and a network to which subscribers are connected are coupled to each other, it is possible to prevent a fault in the optical ring network by changing the terminating position when a fault occurs in a first ring 16 and a second ring 18. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
