Title:
光伝送装置および光伝送の最適経路決定方法
Document Type and Number:
Japanese Patent JP4433625
Kind Code:
B2
Abstract:
An optical transmission apparatus (10) implemented as an OADM (Optical Add/Drop Multiplexer) includes quality monitors (18,28) each for monitoring the quality of a signal arriving on a particular optical transmission path. A monitor/control unit (44) converts quality signals output from the quality monitors (18,28) to path-by-path bit error rates, or estimation values, and compares them to select a route. The monitor/control unit (44) then generates a metric value "1" for the route selected and adds it to one of identical metric values, which are assigned to routes to the same destination, that correspond to the route selected. The monitor/control unit (44) can therefore select a route closer to actual transmission path conditions. A method of determining an optimal route for optical transfer is also disclosed.
Inventors:
Uematsu Sumi
Manabu Wakabayashi
Manabu Wakabayashi
Application Number:
JP2001056266A
Publication Date:
March 17, 2010
Filing Date:
March 01, 2001
Export Citation:
Assignee:
Oki Electric Industry Co., Ltd.
International Classes:
H04L12/437; H04B10/03; H04B10/032; H04B10/07; H04B10/077; H04B10/275; H04B10/291; H04J14/02; H04L12/701; H04L29/02
Domestic Patent References:
| JP9261259A | ||||
| JP11168526A | ||||
| JP4262645A | ||||
| JP2000324127A | ||||
| JP6311078A | ||||
| JP56052951A | ||||
| JP9098180A |
Attorney, Agent or Firm:
Takao Katori