Title:
LINK STATE PUBLICLY ANNOUNCING SYSTEM
Document Type and Number:
Japanese Patent JP3789862
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To build up an autonomous distribution control network controlled by the IP protocol that realizes a stable operation even in a facility fault while effectively suppressing the scale of a facility required to establish a standby channel.
SOLUTION: A node searches an SRLG (Shared Risk Link Group) which can be backed up by a link and an SRLG which cannot be backed up on the basis of the band allocation state of the link band being a management object of its own node and the SRLG of a link through which a current path backed up by a shared standby band passes, and publicly announces the SRLG information to other nodes.
Inventors:
Imajuku
Satoru Okamoto
Satoru Okamoto
Application Number:
JP2002193474A
Publication Date:
June 28, 2006
Filing Date:
July 02, 2002
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04L45/24; H04L45/02; H04L45/247; (IPC1-7): H04L12/56
Domestic Patent References:
| JP2003229889A | ||||
| JP2003273904A | ||||
| JP2003304274A | ||||
| JP2003318955A |
Other References:
大久保敬子他,“1:Nパスプロテクションにおける予備系パス帯域共有に関する検討”,2002年電子情報通信学会全国大会,2002年 3月 7日,02-春-通信2-B-7-86
Attorney, Agent or Firm:
Naotaka Ide
Toshinao Shimodaira
Toshinao Shimodaira