METHOD AND APPARATUS TO CONTROL ANYCAST TRAFFIC USING A SOFTWARE DEFINED NETWORK CONTROLLER

• US 20180048525A1
• Filed: 08/15/2016
• Published: 02/15/2018
• Est. Priority Date: 08/15/2016
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Karasaridis, Anestis, Nortz, Douglas M., Sridharan, Ashwin, Velardo, JR., Patrick Michael
• Granted Patent: US 10,992,536 B2
• Time in Patent Office: Days
• 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 41/40 using virtualisation of network functions or resources, e.g. SDN or NFV entities
• CPC Class Codes: H04L 43/08 Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
• CPC Class Codes: H04L 43/20 the monitoring system or the monitored elements being virtualised, abstracted or software-defined entities, e.g. SDN or NFV
• CPC Class Codes: H04L 45/70 Routing based on monitoring results
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 63/1416 Event detection, e.g. attack signature detection
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/562 Brokering proxy services
• CPC Class Codes: H04L 69/165 Combined use of TCP and UDP protocols; selection criteria therefor
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

Systems, methods and computer readable media are provided to control anycast traffic using a software defined network controller. Telemetry and event data is gathered from a plurality of service nodes in the network. The telemetry and event data sent by an event broker to an analytic application with a resource conditions at each of the plurality of service nodes is determined based on the telemetry and event data. Traffic routing change recommendations are provided to a software defined network controller based on resource conditions at each of the plurality of service nodes and a set of predetermined policies.

Claims

1. A method comprising:

gathering, by a system comprising a processor, telemetry and event data from a plurality of service nodes in a network;

sending, by the system, the telemetry and event data via an event broker to an analytic application;

detecting, by the system, resource conditions at some of the plurality of service nodes based upon the telemetry and event data; and

providing, by the system, traffic routing change recommendations to a software defined network controller based on the resource conditions and a set of policies.

2. The method of claim 1 further comprising implementing the traffic routing change recommendations.

3. The method of claim 1 wherein the telemetry and event data comprises at least one of queries per second, CPU utilization, and outages.

4. The method of claim 1 wherein the software defined network controller updates specific routes into the network with route changes.

5. The method of claim 2 wherein the implementing the traffic routing change recommendations comprises directing a route change instruction to a virtual processing element.

6. The method of claim 2 further comprising gathering new telemetry and event data from the plurality of service nodes after implementation of the traffic routing change recommendations.

7. The method of claim 2 wherein the traffic routing change recommendations when implemented serve to redirect anycast traffic.

8. A system comprising:

a memory for storing computer instructions;

a processor coupled with the memory, wherein the processor, responsive to executing the computer instructions, performs operations comprising;

gathering telemetry and event data from a plurality of service nodes in a network;

sending the telemetry and event data via an event broker to an analytic application;

detecting resource conditions at each of the plurality of service nodes based upon the telemetry and event data; and

providing traffic routing change recommendations to a software defined network controller based on resource conditions at each of the plurality of service nodes and a set of policies.

9. The system of claim 8 wherein the processor, responsive to executing the computer instructions, performs operations comprising implementing the traffic routing change recommendations.

10. The system of claim 8 wherein the telemetry and event data comprises at least one of queries per second, CPU utilization, and outages.

11. The system of claim 8 wherein the software defined network controller updates specific routes into the network with route changes.

12. The system of claim 9 wherein implementing the traffic routing change recommendations comprises directing a route change into virtual processing elements.

13. The system of claim 9 wherein the processor, responsive to executing the computer instructions, performs operations comprising gathering new telemetry and event data from the plurality of service nodes after implementation of the traffic routing change recommendations.

14. The system of claim 9 wherein the traffic routing change recommendations when implemented serve to redirect anycast domain name system traffic.

15. A computer-readable medium having computer-executable instructions stored thereon which, when executed by a computer, cause the computer to perform a method comprising:

gathering telemetry and event data from a plurality of service nodes in a network;

sending the telemetry and event data via an event broker to an analytic application;

detecting resource conditions at each of the plurality of service nodes based upon the telemetry and event data; and

providing traffic routing change recommendations to a software defined network controller based on the resource conditions at each of the plurality of service nodes and a set of policies.

16. The computer-readable medium of claim 15, further comprising computer-executable instructions stored thereon which, when executed by a computer, cause the computer to perform the method further comprising implementing the traffic routing change recommendations.

17. The computer-readable medium of claim 15 wherein the telemetry and event data comprises at least one of queries per second, CPU utilization, and outages.

18. The computer-readable medium of claim 16 wherein the software defined network controller updates specific routes into the network with route changes.

19. The computer-readable medium of claim 16 wherein implementing the traffic routing change recommendations comprises directing a route change to virtual processing elements.

20. The computer-readable medium of claim 16 further comprising computer-executable instructions stored thereon which, when executed by a computer, cause the computer to perform the method further comprising gathering new telemetry and event data from the plurality of service nodes in the network after implementation of the traffic routing change recommendations.