Title:
迂回経路計算装置及びプログラム及び迂回経路計算サーバ及びルータ及び迂回経路計算方法及びシステム
Document Type and Number:
Japanese Patent JP4417896
Kind Code:
B2
Abstract:
To allow a bypass path to be set for a P2MT TE LSP by the P2MP TE LSP.
Paths are calculated using a path calculation algorithm so that they do not cross a primary path between an Ingress node and an Egress node as a protection object, and a bypass path is set separately. In the case that no bypass path can be set from the primary path, path calculation is performed from leaf nodes along upstream nodes to set a path bypass path.
COPYRIGHT: (C)2007,JPO&INPIT
Inventors:
Masashi Shimizu
Masaru Takahashi
Masaaki Takagi
Masayoshi Yasukawa
Masaru Takahashi
Masaaki Takagi
Masayoshi Yasukawa
Application Number:
JP2005258509A
Publication Date:
February 17, 2010
Filing Date:
September 06, 2005
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04L45/247
Domestic Patent References:
| JP2002271372A | ||||
| JP2000036818A | ||||
| JP2003244202A | ||||
| JP2003032289A | ||||
| JP2004248166A | ||||
| JP2002368744A |
Other References:
松岡康行,MPLSシグナリングによるMultiPath設定方式の検討(B-6-21),2001年電子情報通信学会総合大会講演論文集 通信2,社団法人電子情報通信学会,2001年 3月 7日,p.29
Attorney, Agent or Firm:
Tadahiko Ito
Ryuji Ishihara
Ryuji Ishihara