Title:
ノード装置および予備パス設定方法
Document Type and Number:
Japanese Patent JP4851905
Kind Code:
B2
Abstract:
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.
Inventors:
Yasushi Fujii
Miya Saki Keiji
Shinya Kano
Akira Nagata
Miya Saki Keiji
Shinya Kano
Akira Nagata
Application Number:
JP2006268495A
Publication Date:
January 11, 2012
Filing Date:
September 29, 2006
Export Citation:
Assignee:
富士通株式会社
International Classes:
H04L12/437; H04B10/03; H04B10/032; H04J3/00
Domestic Patent References:
| JP10285174A | ||||
| JP2007028386A |
Attorney, Agent or Firm:
Hiroaki Sakai