Title:
RING NETWORK SYSTEM AND TRANSMITTER
Document Type and Number:
Japanese Patent JP3505406
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To shorten the interruption time of service transmission signals by shortening time until all nodes inside a network start the restoration control of the service transmission signals in the case that a unidirectional active system transmission line fault is generated further in a section where a standby system transmission line is unusable.
SOLUTION: The respective nodes are provided with an MS-RDI reception means 23. For instance, in the case that an SF fault is generated in an active system transmission line SL (4) from the state where a fault is generated in the standby system transmission lines PL (1) and (2) of a segment C, the effect of SF fault generation is directly reported from the node C to the node D by MS-RDI signals. The MS-RDI signals are transmitted through a remaining active system transmission line SL (3) by an MS-RDI reporting means 22. In the node D, by receiving the MS-RDI signals by an MS-RDI reception means 23, the generation of ring changeover is recognized.
Inventors:
Hiromune Suetsugu
Application Number:
JP30110498A
Publication Date:
March 08, 2004
Filing Date:
October 22, 1998
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H04J3/08; H04Q3/00; H04Q11/04; (IPC1-7): H04L12/437
Domestic Patent References:
| JP637779A | ||||
| JP8316977A | ||||
| JP200041056A |
Attorney, Agent or Firm:
Takehiko Suzue (6 outside)
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