Inheritance control method of network control data between transmission apparatuses and transmission apparatus using the same

• US 20050180451A1
• Filed: 07/06/2004
• Published: 08/18/2005
• Est. Priority Date: 02/13/2004
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Ilda, Eiji, Suzuki, Toshihiro, Nagamine, Kazuaki, Kanzaki, Tomoyuki, Shouji, Takuma, Hara, Shingo, Taniguchi, Miwa
• Granted Patent: US 7,724,690 B2
• Time in Patent Office: Days
• US Class Current: 370/463
• CPC Class Codes: H04J 14/0221 Power control, e.g. to keep the total optical power constant
• CPC Class Codes: H04J 14/0227 Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
• CPC Class Codes: H04J 14/0241 Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
• CPC Class Codes: H04J 14/0283 WDM ring architectures

Abstract

To provide a transmission apparatus capable of setting the same control data to the entire child transmission apparatuses instantaneously at a time, thereby leading to improved maintenance operation and bringing about efficient maintenance and system stability. The transmission apparatus receives from a maintenance operator a designation of a parent apparatus having the control data set in advance. That control data is to be inherited to a child apparatus. The transmission apparatus determines whether any transmission apparatus has already been registered as parent apparatus in the child apparatus, and also determines whether the designated parent apparatus has already been registered as child apparatus in the child apparatus. The transmission apparatus then requests the designated parent apparatus to transfer the control data in the designated parent apparatus to the child apparatus, when the designated parent apparatus is not registered in the child apparatus.

Claims

1. A transmission apparatus among a plurality of transmission apparatuses each having control data and being connected to a network over a predetermined protocol, comprising:

a processor receiving from a maintenance operator a designation of a source transmission apparatus of inheritance, namely a parent apparatus, in which the control data being inherited to a target transmission apparatus of inheritance, namely a child apparatus, is set in advance;

a parent apparatus registration section retaining information as to whether any transmission apparatus is registered as parent apparatus; and

a child apparatus management table retaining information as to whether the transmission apparatus coincident with the parent apparatus is registered as child apparatus,

wherein the processor determines whether any transmission apparatus is registered as parent apparatus in the parent apparatus registration section of the child apparatus, and

determines whether the designated parent apparatus is registered as child apparatus in the child apparatus management table of the child apparatus, and

when no transmission apparatus is registered in the parent apparatus registration section of the child apparatus and the designated parent apparatus is not included in the child apparatus management table of the child apparatus, requests the designated parent apparatus to transfer the control data having been set therein to the child apparatus.

2. A method for controlling inheritance of control data among a plurality of transmission apparatuses each having the control data and being connected to a network over a predetermined protocol, comprising the steps of:

designating a source transmission apparatus of inheritance, namely a parent apparatus, in which the control data being inherited to a target transmission apparatus of inheritance, namely a child apparatus, is set in advance;

determining whether any transmission apparatus is registered as parent apparatus in the parent apparatus registration section of the child apparatus;

determining whether the designated parent apparatus is registered as child apparatus in the child apparatus management table of the child apparatus; and

when no transmission apparatus is registered in the parent apparatus registration section of the child apparatus and the designated parent apparatus is not included in the child apparatus management table of the child apparatus, requesting the designated parent apparatus to transfer the control data having been set therein to the child apparatus.

3. The method for controlling inheritance of the control data among the transmission apparatuses according to claim 2,

wherein when modifying control data set in the parent apparatus, if the control data is an object for inheritance, the parent apparatus forwards a portion of the control data having been modified to the entire child apparatuses registered in the child apparatus management table, and

on receipt of the control data portion having been modified, each child apparatus overwrites the received control data portion on the corresponding portion.

4. The method for controlling inheritance of the control data among the transmission apparatuses according to claim 2,

wherein when the inheritance of the control data fails because of a network failure, an inheritance failure alarm is notified to the maintenance operator,

wherein when the failure is restored, the child apparatus transmits the child apparatus management table managed by said child apparatus to the parent apparatus, and the parent apparatus retransmits the control data having been set therein to the child apparatus, and

wherein on completion of the retransmission, the inheritance failure alarm is cleared.

5. The method for controlling inheritance of the control data among the transmission apparatuses according to claim 3,

wherein when the inheritance of the control data fails because of a network failure, an inheritance failure alarm is notified to the maintenance operator,

wherein when the failure is restored, the child apparatus transmits the child apparatus management table managed by said child apparatus to the parent apparatus, and the parent apparatus retransmits the control data having been set therein to the child apparatus, and

wherein on completion of the retransmission, the inheritance failure alarm is cleared.

6. The method for controlling inheritance of the control data among the transmission apparatuses according to claim 2,

wherein when the parent apparatus is designated, a distinction between complete inheritance which represents the inheritance of the entire control data to be inherited from the parent apparatus and reference inheritance which represents updating only the modified portion by reference is executed.