Method for notifying at least one application of changes of state in network resources, a computer program and a change-of-state notification system for implementing the method

• US 20070070912A1
• Filed: 10/29/2004
• Published: 03/29/2007
• Est. Priority Date: 11/03/2003
• Status: Abandoned Application

• Current Assignee: Orange S.A.
• Original Assignee: Orange S.A.
• Inventors: Gourhant, Yvon, Mathieu, Bertrand, Meddour, Djamal-Eddine
• Application Number:
  US10/578,101
• Publication Number:
  US 20070070912A1
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04W 40/00 Communication routing or communication path finding
• CPC Class Codes: H04W 40/24 Connectivity information management, e.g. connectivity discovery or connectivity update
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

This method for notifying changes of state in the resources of a network to at least one application adapted to execute on the network, comprises the following steps: extracting routing information, using change-of-state notification means with which the application has previously been register; and forwarding said routing information extracted by the notification means to the application.

Claims

1. A method of notifying changes of state in the resources of a network to at least one application adapted to execute on the network, the method comprising the following steps:

extracting routing information, using change-of-state notification means with which the application has previously been registered; and

forwarding said routing information extracted by the notification means to the application.

2. A change-of-state notification method according to claim 1, wherein, during the prior registration step, a fraction of the nodes and/or of the links of the network is selected so that the information that is extracted and forwarded to said application is routing information relating to said selected fraction of the nodes and/or of the links.

3. A change-of-state notification method according to claim 1, wherein the network is an ad-hoc network, and in that the routing information is extracted by interrogating a routing protocol implemented in the ad-hoc network.

4. A change-of-state notification method according to claim 3, wherein the routing information is extracted from routing tables exchanged by a proactive routing protocol of the ad-hoc network, in particular the OLSR protocol.

5. A change-of-state notification method according to claim 1, further including a step of dynamically extending the notification means during which new extraction rules are introduced into the notification means corresponding to new routing information that has been deployed on the network.

6. A computer program for notifying changes of state in the resources of a network to at least one application adapted to execute on the network, the program including, for an application that has previously been registered with the program, means for extracting routing information, and means for forwarding the extracted information to the application.

7. A system for notifying changes of state in the resources of a network, the system comprising the network and at least one application adapted to execute on the network, and including a computer program installed on at least one of the nodes of the network, the program including, for an application that has previously been registered with the program, means for extracting routing information, and means for forwarding the extracted information to the application.

8. Node of a network, comprising routing applications, wherein it comprises further a computer program including, for an application that has previously been registered with the program, means for extracting routing information, and means for forwarding the extracted information to the application.