发明授权
- 专利标题: Node and method of setting backup path
- 专利标题(中): 设置备份路径的节点和方法
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申请号: US11785894申请日: 2007-04-20
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公开(公告)号: US07633857B2公开(公告)日: 2009-12-15
- 发明人: Yasuki Fujii , Keiji Miyazaki , Shinya Kano , Akira Nagata
- 申请人: Yasuki Fujii , Keiji Miyazaki , Shinya Kano , Akira Nagata
- 申请人地址: JP Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JP Kawasaki
- 代理机构: Staas & Halsey LLP
- 优先权: JP2006-268495 20060929
- 主分类号: H04J1/16
- IPC分类号: H04J1/16
摘要:
A node in a first ring stores therein connection information about connecting nodes between a second ring and a third ring. Upon receiving a route of a working path by a signaling, the node determines any one of nodes composing the second ring as a branch node. If the working path is not terminated on an end node that the working path ends in the second ring thereon, and also if no node composing the second ring stores therein connection information between the end node and any one of the connecting nodes in the third ring that is connected to the second ring, the node compares each condition of selectable routes of a backup path between the end node and the branch node, and selects any one of the selectable routes as the backup path based on a result of comparison.
公开/授权文献
- US20080080367A1 Node and method of setting backup path 公开/授权日:2008-04-03