OPTICAL PATH SETTING METHOD, NODE, AND NETWORK - Nippon Telegraph and Telephone Corporation

Title:

OPTICAL PATH SETTING METHOD, NODE, AND NETWORK

Document Type and Number:

Japanese Patent JP3967219

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide an optical path setting method whereby a wavelength conversion resource is efficiently used to set an optical path with a high success probability.
SOLUTION: A termination node increments the number of nodes performing wavelength conversion among nodes capable of converting wavelength, on the basis of idle wavelength information and wavelength conversion resource information, one by one starting from 0 until the optical path can be set. When successful optical path setting is made for the first time with the number of nodes K, the termination node selects a combination of wavelength conversion nodes maximizing an object function among combinations of nodes capable of converting wavelength in which the number of nodes is K.

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Inventors:

Eiji Oki
Island saki masterpiece
Shiomoto Kohei
Naoaki Yamanaka

Application Number:

JP2002208513A

Publication Date:

August 29, 2007

Filing Date:

July 17, 2002

Export Citation:

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Assignee:

Nippon Telegraph and Telephone Corporation

International Classes:

H04J14/00; H04J14/02; (IPC1-7): H04J14/00; H04J14/02

Domestic Patent References:

JP11122258A
JP2001111528A
JP2000004460A
JP2003244098A
JP2003244078A

Attorney, Agent or Firm:

Naotaka Ide
Toshinao Shimodaira

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