Systems and Methods for Fractional Routing Redundancy

• US 20100293293A1
• Filed: 05/13/2010
• Published: 11/18/2010
• Est. Priority Date: 05/15/2008
• Status: Active Grant

• Current Assignee: Telsima Corp. (Aviat Networks Incorporated)
• Original Assignee: Telsima Corp. (Aviat Networks Incorporated)
• Inventors: Beser, Nurettin Burcak
• Granted Patent: US 9,071,498 B2
• Time in Patent Office: Days
• US Class Current: 709/238
• CPC Class Codes: G06F 11/2007 using redundant communication media
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/22 Alternate routing
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 45/586 of virtual routers
• CPC Class Codes: H04L 45/64 using an overlay routing layer

Abstract

Systems and methods for fractional routing are described. An exemplary method may include receiving, by a first router, data information regarding routing by a first portion of a third router, receiving, by a second router, data information regarding routing by a second portion of a third router, wherein the data information regarding routing by the first portion and data information regarding routing by the second portion is not the same, routing, by the first router, data associated with the routing by the first portion of the third router, and routing by the second router, data associated with the routing by the second portion of the third router.

Claims

1. A method comprising:

receiving, by a first router, data information regarding routing by a first portion of a third router;

receiving, by a second router, data information regarding routing by a second portion of a third router, wherein the data information regarding routing by the first portion and data information regarding routing by the second portion is not the same;

routing, by the first router, data associated with the routing by the first portion of the third router; and

routing by the second router, data associated with the routing by the second portion of the third router.

2. The method of claim 1, wherein the data information regarding routing by the first portion of the third router comprises data information associated with a data stream being routed by the first portion and the data information regarding routing by the second portion of the third router comprises data information associated with a data stream being routed by the second portion.

3. The method of claim 1, further comprising receiving, by the first router and the second router, state information of the third router.

4. The method of claim 1, further comprising determining that the third router is not functional.

5. The method of claim 4, wherein the determination that the third router is not functional is based, at least in part, on the state information.

6. The method of claim 1, wherein the first portion of the third router is a blade.

7. The method of claim 1, wherein the first router is configured to perform redundant routing services for the first portion of the third router.

8. The method of claim 1, wherein the second router is configured to redundant routing services for the second portion of the third router.

9. The method of claim 1, wherein at least a portion of the second router is configured to perform redundant routing services for both the second portion of the third router and another portion of the second router.

10. The method of claim 1, further comprising receiving, by a fourth router, data information regarding routing by the first portion and data information regarding routing by the second portion.

11. The method of claim 10, wherein the fourth router performs redundant routing services for, at least in part, both the first router and the second router.

12. The method of claim 5, further comprising redirecting data associated with the routing by the first portion of the third router to the first router and redirecting data associated with the routing by the second portion of the third router to the second router.

13. A system comprising:

a first router configured to receive data information regarding routing by a first portion of a third router and to route data associated with the routing by the first portion of the third router;

a second router configured to receive data information regarding routing by a second portion of a third router and to route data associated with the routing by the second portion of the third router, wherein the data information regarding routing by the first portion and data information regarding routing by the second portion is not the same; and

the third router comprising the first and second portions.

14. The system of claim 13, wherein the data information regarding routing by the first portion of the third router comprises data information associated with a data stream being routed by the first portion and the data information regarding routing by the second portion of the third router comprises data information associated with a data stream being routed by the second portion.

15. The system of claim 13, wherein the first router and the second router are configured to receive state information of the third router.

16. The system of claim 13, wherein the first router is configured to determine that the third router is not functional.

17. The system of claim 16, wherein the determination that the third router is not functional is based, at least in part, on the state information.

18. The system of claim 13, wherein the first portion of the third router is a blade.

19. The system of claim 13, wherein the first router is configured to perform redundant routing services for the first portion of the third router.

20. The system of claim 13, wherein the second router is configured to perform redundant routing services for the second portion of the third router.

21. The system of claim 13, wherein at least a portion of the second router is configured to perform redundant routing services for both the second portion of the third router and another portion of the second router.

22. The system of claim 13, further comprising a fourth router configured to receive data information regarding routing by the first portion and data information regarding routing by the second portion.

23. The system of claim 22, wherein the fourth router is further configured to perform redundant routing services for, at least in part, both the first router and the second router.

24. The system of claim 23, further comprising a network device configured to redirect data associated with the routing by the first portion of the third router to the first router and to redirect data associated with the routing by the second portion of the third router to the second router.

25. A system comprising:

a first routing means configured to receive data information regarding routing by a first portion of a third routing means and to route data associated with the routing by the first portion of the third routing means;

a second routing means configured to receive data information regarding routing by a second portion of a third routing means and to route data associated with the routing by the second portion of the third routing means, wherein the data information regarding routing by the first portion and data information regarding routing by the second portion is not the same; and

the third routing means comprising the first and second portions.