NETWORK DATA MODEL AND TOPOLOGY DISCOVERY METHOD

Abstract

A network topology data record provides a information upon the basis of which a network topology can automatically be generated. A topology resolution record can include network element or shelf/path data, as well as relationship data including a network element grouping identifier, such as a site identifier. The record can also include affiliation data, such as line adjacency, associated shelf adjacency, photonic adjacency, and service layer device adjacency. A network topology is generated, without user input, based on the automatically discovered network topology information. Topology resolution data is stored at the network level, without need for interaction with a management layer. The data record also enables a graphical user interface for network management in which a user can switch and zoom between a plurality of views in a context-sensitive manner, each view showing relationship or interconnection information for the network elements.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the present invention will now be described, by way of example only, with reference to the attached Figures, wherein:

FIG. 1 illustrates a network topology data record according to an embodiment of the present invention;

FIG. 2 illustrates a network topology showing interrelationships between network elements;

FIG. 3 illustrates a network topology data record according to another embodiment of the present invention;

FIG. 4 illustrates a method of automatic topology generation according to an embodiment of the present invention; and

FIG. 5 illustrates an 8-span closed ring network topology with four domains;

FIGS. 6A-6C illustrate OST retrieve records for elements in FIG. 5;

FIG. 7 illustrates a network topology showing service layer relationships;

FIG. 8 illustrates a network topology data record according to a further embodiment of the present invention; and

FIG. 9 illustrates a network topology data record according to a yet further embodiment of the present invention.

Claims

1. A computer readable medium storing a network topology data record, for network element management comprising: distribution indexing data to facilitate distribution of the record;network element data including technical characteristics of the selected network element; andrelationship data representing logical and physical relationships between the selected network element and other network elements, the relationship data including a network element grouping identifier representing a grouping to which the network element belongs.

2. The computer readable medium of claim 1 wherein the network element grouping identifier comprises a site identifier representing a physical grouping to which the network element belongs.

3. The computer readable medium of claim 1 wherein the network element grouping identifier comprises domain optical controller status data to indicate location.

4. The computer readable medium of claim 1 wherein the network element data comprises automatically discovered network element data.

5. The computer readable medium of claim 1 wherein the network element data comprises shelf/path data.

6. The computer readable medium of claim 1 wherein the relationship data comprises automatically discovered relationship data.

7. The computer readable medium of claim 1 wherein the relationship data comprises associated shelf adjacency data.

8. The computer readable medium of claim 1 wherein the relationship data comprises photonic adjacency data.

9. The computer readable medium of claim 1 wherein the relationship data comprises service layer adjacency data.

10. The computer readable medium of claim 1 wherein the network element data comprises service layer device transmitter and receiver data.

11. The computer readable medium of claim 1 wherein the network element data comprises channel inventory data.

12. The computer readable medium of claim 1 wherein the network element data comprises channel availability data.

13. The computer readable medium of claim 1 wherein the network element data comprises equipment list data.

14. A method of generating a network topology comprising: automatically discovering network topology information based on element and relationship data stored at each network element, without user input; andgenerating the network topology based on the automatically discovered network topology information.

15. The method of claim 14 wherein automatically discovering the network topology information comprises automatically discovering optical system topology information.

16. The method of claim 15 wherein generating the network topology comprises generating an optical system topology based on the automatically discovered optical system topology information.

17. The method of claim 14 further comprising storing the automatically discovered network topology information at a network level independent of a management layer.

18. The method of claim 14 further comprising identifying domain optical controller (DOC) sites based on the automatically discovered network topology information.

19. The method of claim 18 wherein identifying the DOC sites comprises identifying DOC sites within an OSID.

20. The method of claim 18 wherein identifying the DOC sites comprises identifying DOC sites in the entire network.

21. The method of claim 14 further comprising identifying all network elements associated with a DOC based on the automatically discovered network topology information.

22. The method of claim 14 further comprising tracing an optical channel path end to end based on the automatically discovered network topology information.

23. The method of claim 14 further comprising generating a list of shelves for a selected site.

24. The method of claim 14 wherein the step of generating the network topology comprises generating an ordered list of sections per network path by tracing network element interconnectiveness within an OSID.

25. The method of claim 14 further comprising validating a connection by comparing the automatically discovered network topology information with expected provisioning information.