发明名称 |
PATH CALCULATING METHOD, PROGRAM AND CALCULATING APPARATUS |
摘要 |
<p>A calculating apparatus calculates a shortest path connecting two nodes of a network. A shortest-path group, which is a set of shortest paths having node Y as their starting points, can be calculated at once by having calculated a shortest path having node Y as its starting point for each of other nodes. When the shortest-path group having node Y as the starting point is calculated and further if a group of shortest paths having node X as their starting points is stored beforehand in a storing unit, then path portions, which belong to the group of shortest paths having node X as the starting points and further which are paths extending from node Y to the nodes located downstream from node Y, are utilized as part of a result of calculation of the shortest path group having node Y as the starting point.</p> |
申请公布号 |
CA2743929(C) |
申请公布日期 |
2016.01.19 |
申请号 |
CA20092743929 |
申请日期 |
2009.11.18 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
SUGISONO, KOJI;AOKI, MICHIHIRO;IWATA, HIDEAKI |
分类号 |
H04L12/733;H04B1/00;H04L12/751 |
主分类号 |
H04L12/733 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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