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

• US 7,724,690 B2
• Filed: 07/06/2004
• Issued: 05/25/2010
• Est. Priority Date: 02/13/2004
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Kanzaki, Tomoyuki, Iida, Eiji, Shouji, Takuma, Hara, Shingo, Taniguchi, Miwa, Suzuki, Toshihiro, Nagamine, Kazuaki
• Primary Examiner(s): BARON, HENRY
• Assistant Examiner(s): Rao; Semma S.
• Application Number:
  US10/883,917
• Publication Number:
  US 20050180451A1
• Time in Patent Office: 2,149 Days
• Field of Search: 370/254, 370/255, 370/242, 370/241, 455/435, 455/560, 455/41, 709/224
• US Class Current: 370/258
• 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 a 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 method for controlling to transfer and set control data in a plurality of transmission apparatuses installed in a ring network over a predetermined protocol, wherein each of the plurality of transmission apparatuses has a parent apparatus registration section and a child apparatus management table, the method in each of the plurality of transmission apparatuses comprising:

retaining information of whether any transmission apparatus is registered as a parent apparatus for a concerned transmission apparatus in the parent apparatus registration section of the concerned transmission apparatus;

retaining information of whether the concerned transmission apparatus is registered as a parent apparatus for any transmission apparatus in the child management table of the concerned transmission apparatus; and

requesting by a processor of the concerned transmission apparatus to a parent apparatus designated by the maintenance operator to transfer the control data stored in the storing unit of the patent apparatus, to the concerned transmission apparatus, when no transmission apparatus is registered in the parent apparatus registration section of the concerned transmission apparatus, and the designated parent apparatus is not included in the child apparatus management table of the concerned transmission apparatus, wherein;

in a transmission apparatus designated as the parent apparatus when modifying control data set in the parent apparatus, if the control data is an object for inheritance, the parent apparatus transmits a portion of the control data having been modified to all transmission apparatuses registered as a child apparatus in the child apparatus management table, and

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

3. The method according to claim 1, wherein:

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

when the network failure is restored, the concerned transmission apparatus, registered as a child apparatus, transmits the child apparatus management table managed by the concerned transmission apparatus to the parent apparatus, and the parent apparatus retransmits the control data having been set therein to the concerned transmission apparatus, and

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

2. A method for controlling to transfer and set control data in a plurality of transmission apparatuses installed in a ring network over a predetermined protocol, wherein each of the plurality of transmission apparatuses has a parent apparatus registration section and a child apparatus management table, the method in each of the plurality of transmission apparatuses comprising:

retaining information of whether any transmission apparatus is registered as a parent apparatus for a concerned transmission apparatus in the parent apparatus registration section of the concerned transmission apparatus;

retaining information of whether the concerned transmission apparatus to a parent apparatus designated by the maintenance operator to transfer the control data stored in the storing unit of the patent apparatus, to the concerned transmission apparatus, when no transmission apparatus is registered in the parent apparatus registration section of the concerned transmission apparatus, and the designed parent apparatus is not included in the child apparatus management table of the concerned transmission apparatus, wherein;

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

when the network failure is restored, the concerned transmission apparatus registered as child apparatus transmits the child apparatus management table managed by the concerned transmission apparatus to the parent apparatus, and the parent apparatus retransmits the control data having been set therein to the concerned transmission apparatus, and

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

4. A method for controlling to transfer and set control data in a plurality of transmission apparatuses installed in a ring network over a predetermined protocol, wherein each of the plurality of transmission apparatuses has a parent apparatus registration section and a child apparatus management table, the method in each of the plurality of transmission apparatuses comprising:

retaining information of whether any transmission apparatus is registered as a parent apparatus for a concerned transmission apparatus in the parent apparatus registration section of the concerned transmission apparatus;

retaining information of whether the concerned transmission apparatus is registered as a parent apparatus for any transmission apparatus in the child management table of the concerned transmission apparatus; and

requesting by a processor of the concerned transmission apparatus to a parent apparatus designated by the maintenance operator to transfer the control data stored in the storing unit of the patent apparatus, to the concerned transmission apparatus, when no transmission apparatus is registered in the parent apparatus registration section of the concerned transmission apparatus, and the designated parent apparatus is not included in the child apparatus management table of the concerned transmission apparatus, 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.