Consolidated ethernet optical network and apparatus

• US 20060013231A1
• Filed: 06/22/2004
• Published: 01/19/2006
• Est. Priority Date: 06/22/2004
• Status: Abandoned Application

• Current Assignee: SBC Knowledge Ventures LP (AT&T, Inc.)
• Original Assignee: SBC Knowledge Ventures LP (AT&T, Inc.)
• Inventors: Sahasrabuddhe, Laxman, Matthews, David L., Manthoulis, Orestis, Yuan, Chin, Montelongo, Rodolfo Jr.
• Application Number:
  US10/874,154
• Publication Number:
  US 20060013231A1
• Time in Patent Office: Days
• US Class Current: 370/395.530
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/325 in the network layer [OSI layer 3], e.g. X.25 H04L69/16 takes precedence

Abstract

A consolidated optical Ethernet network and apparatus are disclosed. In one form a network device includes an aggregation layer access interface operable to access an aggregation layer and a core layer access interface provided in combination with the aggregation layer access interface and operable to access a core layer. The device may be provided within a Multiprotocol Label Switching based Ethernet Optical Network (EON) as a network switch and may allow for efficient access to multiple layers of a network communicating information within the EON.

Claims

1. An optical network comprising:

a network node operable to access an aggregation layer and a core layer;

a first output of the network node operable to output core layer traffic to a core layer node; and

a second output of the network node operable to output aggregation layer traffic to an aggregation layer node.

2. The network of claim 1, further comprising an Access layer node communicatively coupled to the network node and operable to form at least a portion of a link communicatively coupling a local area network computing device with the core layer node.

3. The network of claim 1, further comprising the core layer node, which is operable to perform core layer switching.

4. The network of claim 3, further comprising the aggregation node, which is operable to perform aggregation layer routing.

5. The network of claim 1, wherein the network node comprises a core layer module communicatively coupled to the first output, the core layer module operable to operable to perform core layer switching and an aggregation layer module communicatively coupled to the second output, the aggregation layer module operable to perform aggregation layer routing.

6. The network of claim 5, wherein the network node further comprises a housing component at least partially defining an interior cavity, further wherein the aggregation layer module and the core layer module are at least partially located within the interior cavity.

7. The network of claim 1, wherein the network node comprises at least one 16-port module.

8. The network of claim 1, wherein the network node comprises at least one 4-port module.

9. The network of claim 6, wherein the network node comprises at least one 16-port module.

10. The network of claim 1, wherein the network node comprises an access layer interface operable to be directly coupled to an access layer node.

11. The network of claim 10, wherein the network node comprises a dedicated aggregation layer interface and a dedicated core layer interface.

12. The network of claim 1 further comprising an Ethernet Optical Network.

13. The network of claim 12, further comprising a Multiprotocol Label Switching (MPLS) based network.

14. The network of claim 13 further comprising a label-switching based network.

15. The network of claim 1 comprising:

a PE-POP node coupled to the network node and operable to access an aggregation layer; and

a core node coupled to the network node and the PE-POP node and operable to access a core layer.

16. A method of processing information within a network comprising:

accessing an aggregation layer using a network node;

accessing a core layer using the network node;

switching at least a portion of core layer traffic using the network node; and

routing at least a portion of aggregation layer traffic using the network node.

17. The method of claim 16 further comprising:

determining a network layer for incoming traffic; and

selecting a communication port in response to determining the network layer.

18. The method of claim 17 wherein the network layer comprises the aggregation layer.

19. The method of claim 17 wherein the network layer comprises the core layer.

20. The method of claim 17 further comprising accessing a PE-POP node via the communication port.

21. The method of claim 17 further comprising accessing a Core Layer node via the communication port.

22. The method of claim 17 further comprising accessing an Access Layer node via the communication port.

23. The method of claim 16 further comprising communicating information between a PE-POP node and the network node via the communication port.

24. The method of claim 16 further comprising communicating information between a core node and the network node via the communication port.

25. A computer-readable medium having computer-readable data operable to:

access an aggregation layer using a network node;

access a core layer using the network node;

perform a core layer switching function using the network node; and

perform an aggregation layer routing function using the network node.

26. The computer-readable medium of claim 25 further comprising data operable to:

determine a network layer for received information; and

initiate performance of a core layer switching function in response to determining the network layer.

27. The computer-readable medium of claim 26 further comprising data operable to access the aggregation layer.

28. The computer-readable medium of claim 26 further comprising data operable to access the core layer.

29. The computer-readable medium of claim 26 further comprising data operable to access a PE-POP node via the communication port.

30. The computer-readable medium of claim 26 further comprising data operable to access a core layer node via the communication port.

31. The computer-readable medium of claim 26 further comprising data operable to access an access layer node via the communication port.

32. The computer-readable medium of claim 25 further comprising data operable to communicate information between a PE-POP node and the network node via the communication port.

33. The computer-readable medium of claim 25 further comprising data operable to communicate information between a core node and the network node via the communication port.

34. A network device comprising:

an aggregation layer access interface operable to access an aggregation layer; and

a core layer access interface provided in combination with the aggregation layer access interface and operable to access a core layer.

35. The device of claim 34, further comprising at least one communication port operable to communicate with a PE-POP node.

36. The device of claim 34, further comprising at least one communication port operable to communicate with a core node.

37. The apparatus of claim 34 further comprising at least one communication port operable to communicate with an access layer node.

38. The device of claim 37 wherein the access layer node includes at least one CPE node.

39. The device of claim 34, wherein the network comprises a MPLS-based EON.

40. The device of claim 34, further comprising:

a first communication communicatively coupled to a core node; and

a second communication port communicatively coupled to an aggregation layer node.

41. The device of claim 34, further comprising multiple communication ports operable to communicate with multiple PE-POP nodes.

42. The device of claim 34, further comprising a network switch.

43. The device of claim 34, further comprising at least one 4-port communication module operable to communicate with at least one of a PE-POP node or a core node.

44. The device of claim 34, further comprising at least one 16-Port communication module operable to communicate with a CPE node.

45. The device of claim 40, wherein a 16-port Gigabyte Ethernet (GigE) card comprises the second communication port.

46. The device of claim 34, wherein a 4-port GigE MPLS card comprises the core layer access interface and a 16-port GigE card comprises the aggregation layer access interface.

47. The device of claim 34, wherein a single card comprises the core layer access interface and the aggregation layer access interface.