Title:
通信システム、通信方法、及び、網管理装置
Document Type and Number:
Japanese Patent JP5747281
Kind Code:
B2
Abstract:
In an example of the invention, network devices are classified into areas. Each of the areas includes edge nodes. A network management apparatus retains fault information including values each indicating whether or not a fault has occurred in each of the areas, retains detour path information including values indicating edge nodes, values indicating alternative areas to the areas and priorities assigned to the alternative areas, identifies, when determined that a fault has occurred in a first area based on the fault information, an alternative area to the first area based on the detour path information, determines, when determined that the fault has not occurred in the identified alternative area, the identified alternative area as a second area through which the active path passes, determines two edge nodes included in the second area, and detect network devices through which the active path passes between the two edge nodes.
Inventors:
Kenji Fujihira
Takayuki Seiyu
Tetsuya Uda
Takayuki Seiyu
Tetsuya Uda
Application Number:
JP2011222683A
Publication Date:
July 15, 2015
Filing Date:
October 07, 2011
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H04L45/24; H04L45/247; H04L45/42
Domestic Patent References:
| JP2006340058A | ||||
| JP2002094510A | ||||
| JP2012238933A | ||||
| JP8242251A | ||||
| JP2009239359A |
Attorney, Agent or Firm:
Masahiro Fujii
Masaki Goto
Masaaki Iida
Masaki Goto
Masaaki Iida