System and method for ethernet network design

• US 7,610,361 B2
• Filed: 01/05/2004
• Issued: 10/27/2009
• Est. Priority Date: 01/05/2004
• Status: Expired due to Fees

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Sahasrabuddhe, Laxman, Manthoulis, Orestis, Chiang, Mung
• Primary Examiner(s): Blair; Douglas B
• Application Number:
  US10/751,683
• Publication Number:
  US 20050188059A1
• Time in Patent Office: 2,122 Days
• Field of Search: 709/223, 709/21, 709/220, 703/2, 703/21, 370/353, 370/354, 379/201.12, 715733-735
• US Class Current: 709/220
• CPC Class Codes: H04L 41/0826 for reduction of network costs H04L41/0833 takes precedence
• CPC Class Codes: H04L 41/145 involving simulating, designing, planning or modelling of a network
• CPC Class Codes: H04L 41/22 comprising specially adapted graphical user interfaces [GUI]

Abstract

A system and method for Ethernet network design are disclosed. In one embodiment of a method incorporating teachings of the present disclosure, embedded network information describing at least one existing network element and a plurality of physical locations available for locating new network nodes may be inputted. A demand forecast for a coverage area of a proposed network may also be inputted. In an embodiment in which a to-be-designed network has at least a core layer and an aggregation layer, a number of core layer nodes and aggregator nodes to be included in the proposed network may also be inputted. Consideration may be given to these and other inputs in connection with generating a potential network design for the proposed network, and a cost of implementing the potential network design may be calculated.

Claims

1. A network design method executable by at least one computer, the method comprising:

inputting embedded network information describing at least one existing network element and a plurality of physical locations available for locating new network nodes;

inputting a demand forecast for a coverage area of a proposed network having a core layer, an aggregation layer, and an access layer;

inputting a number of core layer nodes to be included in the proposed network;

determining a lower bound number of aggregator layer nodes to service the coverage area;

determining a number of aggregator layer nodes to be included in the proposed network by adding a positive integer quantity to the lower bound number of aggregator layer nodes;

generating a potential network design for the proposed network;

locating each of the core layer nodes and aggregator layer nodes of the potential network design at an assigned physical location of the plurality of physical locations available; and

calculating a cost of implementing the potential network design.

2. The method of claim 1, wherein the potential network design comprises a list of line cards to be added to existing network elements, a list of to be added core layer nodes and aggregator layer nodes, and connection information describing an interconnection plan.

3. The method of claim 2, wherein the cost of implementing the potential network design comprises an equipment cost for the core layer nodes and aggregator layer nodes and an interconnection cost for the interconnection plan.

4. The method of claim 1, further comprising:

generating a second potential network design for the proposed network, wherein at least one network node has an altered assigned physical location that is different than the assigned location for the at least one node in the potential network design; and

calculating a cost of implementing the second potential network design.

5. The method of claim 4, further comprising comparing the cost of implementing the second potential network design to the cost of implementing the potential network design.

6. The method of claim 1, further comprising gathering embedded network information from a remote repository.

7. The method of claim 1, further comprising gathering embedded network information from a network Element Management system.

8. The method of claim 1, wherein the positive integer quantity is a user-defined integer.

9. The method of claim 1, further comprises outputting a proposed network report.

10. The method of claim 9, wherein the network report comprises cost of implementing the potential network design and a list of equipment to be deployed in accordance with the potential network design.

11. The method of claim 1, wherein the proposed network comprises an Ethernet optical network.

12. The method of claim 11, wherein the proposed network is a Multiprotocol Label Switching based network.

13. A computer-readable medium having computer-readable instructions executable by a processor to:

access embedded network information;

access a proposed number of core layer nodes for a to-be-designed network;

determine a lower bound number of aggregator layer nodes to service a coverage area of the to-be-designed network;

determine a number of aggregator layer nodes to be included in the to-be-designed network by adding a positive integer quantity to the lower bound number of aggregator layer nodes;

consider a forecasted demand for the to-be-designed network;

consider a price list for equipment to be included in the to-be-designed network;

generate at least two potential network designs for the to-be-designed network;

locate each of the core layer nodes and aggregator layer nodes at an assigned physical location of the at least two potential network designs;

identify a lower cost proposed network from the at least two potential network designs; and

output data, wherein the data is based at least in part on one of the potential network designs.

14. The computer-readable medium of claim 13, further comprising computer-readable instructions executable by a processor to initiate presentation of a graphical user interface, the presentation comprising a field for receiving a user input defining the number of proposed aggregation layer nodes.

15. The computer-readable medium of claim 13, further comprising computer-readable instructions executable by a processor to initiate retrieval of the embedded network information from a remote repository.

16. The computer-readable medium of claim 13, wherein the proposed network comprises a Multiprotocol Label Switching based Ethernet Optical Network.

17. The computer-readable medium of claim 13, wherein the positive integer quantity is a user-defined integer.

19. The system of claim 17, further comprising a user interface operable to receive the at least one design parameter for a to-be-designed network.

20. The system of claim 19, further comprising an output engine operable to initiate presentation of design details for the lower cost proposed network.

21. The system of claim 19, wherein the to-be-designed network comprises a Multiprotocol Label Switching based Ethernet Optical Network.

22. The system of claim 19, wherein the at least one design parameter further comprises a number of core layer nodes.

23. The system of claim 19, wherein the at least one design parameter further comprises a forecasted demand for the to-be-designed network.

24. The system of claim 19, wherein the at least one design parameter further comprises a design limitation for at least one piece of equipment to be included in the to-be-designed network.

18. A network design system, comprising:

a network interface device operable to form at least a portion of a communication link between a local component and a remote memory maintaining embedded network information;

a design engine operable to;

generate at least two proposed network designs each including at least one deployed network node described in the embedded network information;

locate the at least one deployed network node at a physical location for each of the at least two proposed network designs;

determine a lower bound number of aggregator layer nodes to service a coverage area of the at least two proposed network designs; and

consider at least one design parameter in connection with generating the at least two proposed network designs for a to-be-designed network, the at least one design parameter comprising a price list for at least one piece of equipment to be included in the to-be-designed network, wherein the at least one design parameter further comprises a number of aggregator layer nodes determined by adding a positive integer quantity to the lower bound number of aggregator layer nodes; and

a costing engine operable to determine a lower cost proposed network from the at least two proposed network designs.

25. The system of claim 18, wherein the positive integer quantity is a user-defined integer.

26. An Ethernet network design method comprising:

determining a lower bound number of aggregator layer nodes to service a coverage area of a to-be-designed Ethernet optical network;

receiving a user input comprising at least one design parameter for the to-be-designed Ethernet optical network, wherein the at least one design parameter comprises a price list for at least one piece of equipment to be included in the to-be-designed network, wherein the at least one design parameter further comprises a number of aggregator layer nodes determined by adding a positive integer quantity to the lower bound number of aggregator layer nodes;

generating at least two different potential network designs for the to-be-designed network;

locating the at least one piece of equipment at a physical location for each of the at least two different potential network designs; and

calculating a cost of implementing at least one of the at least two different potential network designs.

27. The method of claim 26, further comprising considering embedded network elements in connection with generating the at least two different potential network designs.

28. The method of claim 26, wherein the at least one design parameter comprises a number of core layer nodes.

29. The method of claim 26, wherein the at least one design parameter comprises a forecasted demand for the to-be-designed network.

30. The method of claim 26, wherein the at least one design parameter comprises a design limitation for at least one piece of equipment to be included in the to-be-designed proposed network.

31. The method of claim 26, wherein the positive integer quantity is a user-defined integer.