System and method for bandwidth control

• US 8,559,310 B2
• Filed: 09/04/2007
• Issued: 10/15/2013
• Est. Priority Date: 09/04/2007
• Status: Active Grant

• Current Assignee: CA, Inc. (d/b/a CA Technologies) (Broadcom, Inc.)
• Original Assignee: CA, Inc. (d/b/a CA Technologies) (Broadcom, Inc.)
• Inventors: Saxena, Sanjay
• Primary Examiner(s): TRAN, PHUC H
• Application Number:
  US11/849,709
• Publication Number:
  US 20090059791A1
• Time in Patent Office: 2,233 Days
• Field of Search: 370/468
• US Class Current: 370/235
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/2433 Allocation of priorities to traffic types
• CPC Class Codes: H04L 47/2441 relying on flow classification, e.g. using integrated services [IntServ]
• CPC Class Codes: H04L 47/2458 Modification of priorities while in transit
• CPC Class Codes: H04L 47/2475 for supporting traffic characterised by the type of applications

Abstract

A method for bandwidth control includes maintaining priority rules for IP traffic. The method further includes determining current traffic characteristics associated with at least a portion of the IP traffic. The method also includes modifying a priority level based in part on the current traffic characteristics. In one embodiment, the method includes modifying a priority level based on a priority level associated with another user, application, protocol type, or interface identifier. In accordance with another embodiment, priority levels are modified in a plurality of networks or network elements.

Claims

1. A method for managing Internet Protocol traffic, comprising:

maintaining priority rules corresponding to anticipated Internet Protocol traffic characteristics associated with a plurality of entities during a particular timeframe, each priority rule defining a priority level of access to bandwidth associated with an entity of the plurality of entities during the particular timeframe relative to other entities of the plurality of entities during the particular timeframe;

determining current Internet Protocol traffic characteristics associated with at least a portion of the plurality of entities during the particular timeframe;

automatically modifying the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics.

2. The method of claim 1, wherein the priority level of access to bandwidth associated with the given entity is automatically modified based at least in part on a priority level of access to bandwidth associated with another entity related to the Internet Protocol traffic.

3. The method of claim 1, wherein:

the Internet Protocol traffic traverses a plurality of network elements, and;

automatically modifying the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics occurs in at least two of the plurality of network elements.

4. The method of claim 3, wherein each network element is governed by a corresponding set of priority rules.

5. The method of claim 1, wherein:

the Internet Protocol traffic traverses a plurality of networks, and;

automatically modifying the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics occurs in at least two of the plurality of networks.

6. The method of claim 1, wherein automatically modifying the priority level of access to bandwidth associated with a given-entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics comprises allocating a minimum amount of bandwidth to the Internet Protocol traffic of the given entity.

7. The method of claim 1, wherein automatically modifying the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics comprises allocating a maximum amount of bandwidth to the Internet Protocol traffic of the given entity.

8. The method of claim 1, wherein the priority level of access to bandwidth for Internet Protocol traffic is based on a source Internet Protocol address.

9. The method of claim 1, wherein the priority level of access to bandwidth for Internet Protocol traffic is based on a destination Internet Protocol address.

10. The method of claim 1, wherein the priority level of access to bandwidth for Internet Protocol traffic is based on a port number.

11. The method of claim 1, wherein the current Internet Protocol traffic characteristics are determined using Network Based Application Recognition.

12. The method of claim 1, wherein the current Internet Protocol traffic characteristics are determined using Simple Network Management Protocol.

13. The method of claim 1, wherein an entity comprises one or more of the following:

one or more users;

one or more applications;

one or more protocol types; and

one or more interface identifiers.

14. A communication system, comprising:

a priority mapping database operable to maintain priority rules corresponding to anticipated Internet Protocol traffic characteristics associated with a plurality of entities during a particular timeframe, each priority rule defining a priority level of access to bandwidth associated with an entity of the plurality of entities during the particular timeframe relative to other entities of the plurality of entities during the particular timeframe;

a traffic analyzer operable to determine current Internet Protocol traffic characteristics associated with at least a portion of the plurality of entities during the particular timeframe;

a priority enforcer operable to modify the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics.

15. The system of claim 14, wherein the priority enforcer is further operable to modify a priority level of access to bandwidth associated with another entity related to the Internet Protocol traffic.

16. The system of claim 14, wherein:

the Internet Protocol traffic traverses a plurality of network elements, and;

the priority enforcer is further operable to modify the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics in at least two of the plurality of network elements.

17. The system of claim 14, wherein:

the Internet Protocol traffic traverses a plurality of networks, and;

the priority enforcer is further operable to modify the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics in at least two of the plurality of networks.

18. The system of claim 14, wherein an entity comprises one or more of the following:

one or more users;

one or more applications;

one or more protocol types; and

one or more interface identifiers.

19. A non-transitory computer readable medium encoded with logic, the logic when executed by a processor operable to:

maintain priority rules corresponding to anticipated Internet Protocol traffic characteristics associated with a plurality of entities during a particular timeframe, each priority rule defining a priority level of access to bandwidth associated with an entity of the plurality of entities during the particular timeframe relative to other entities of the plurality of entities during the particular timeframe;

determine current Internet Protocol traffic characteristics associated with at least a portion of the plurality of entities during the particular timeframe;

automatically modify the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics.

20. The computer readable medium of claim 19, wherein the priority level of access to bandwidth associated with the given entity is automatically modified based at least in part on a priority level of access to bandwidth associated with another entity related to the Internet Protocol traffic.

21. The computer readable medium of claim 19, wherein:

the Internet Protocol traffic traverses a plurality of network elements, and;

the logic is further operable when executed to automatically modify the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics occurring in at least two of the plurality of network elements.

22. The computer readable medium of claim 19, wherein:

the Internet Protocol traffic traverses a plurality of networks, and;

the logic is further operable when executed to automatically modify the priority level of access to bandwidth associated with a given entity of the plurality of entities based at least in part on an analysis of the current Internet Protocol traffic characteristics occurring in at least two of the plurality of networks.

23. The computer readable medium of claim 19, wherein an entity comprises one or more of the following:

one or more users;

one or more applications;

one or more protocol types; and

one or more interface identifiers.