Systems and methods for prognostic network management

• US 9,621,421 B1
• Filed: 06/30/2014
• Issued: 04/11/2017
• Est. Priority Date: 06/30/2014
• Status: Active Grant

• Current Assignee: Juniper Networks Incorporated
• Original Assignee: Juniper Networks Incorporated
• Inventors: Tolentino, Elmer, Pritchard, Graham S, Champaneri, Jayesh, Hiremagalur, Dharini, Keck, Steven
• Primary Examiner(s): Dailey, Thomas
• Application Number:
  US14/320,619
• Time in Patent Office: 1,016 Days
• Field of Search: None
• CPC Class Codes: G06F 11/004 Error avoidance G06F11/07 and subgroups take precedence
• CPC Class Codes: G06F 11/008 Reliability or availability analysis
• CPC Class Codes: G06F 11/0709 in a distributed system consisting of a plurality of standalone computer nodes, e.g. clusters, client-server systems
• CPC Class Codes: G06F 11/3006 where the computing system is distributed, e.g. networked systems, clusters, multiprocessor systems multiprogramming arrangements G06F9/46; allocation of resources G06F9/50
• CPC Class Codes: G06F 11/3442 for planning or managing the needed capacity
• CPC Class Codes: G06F 2201/81 Threshold
• CPC Class Codes: H04L 41/06 Management of faults, events, alarms or notifications
• CPC Class Codes: H04L 41/08 Configuration management of networks or network elements address allocation H04L61/50
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04L 41/0836 to enhance reliability, e.g. reduce downtime
• CPC Class Codes: H04L 41/147 for predicting network behaviour
• CPC Class Codes: H04L 41/5009 Determining service level performance parameters or violations of service level contracts, e.g. violations of agreed response time or mean time between failures [MTBF]
• CPC Class Codes: H04L 43/0817 by checking functioning
• CPC Class Codes: H04L 43/16 Threshold monitoring

Abstract

A computer-implemented method for prognostic network management may include (1) monitoring a health indicator of a physical component of a device in a network, (2) using the health indicator to estimate a remaining useful life of the physical component, (3) detecting that the remaining useful life of the physical component has reached a predetermined threshold, and (4) reconfiguring the network in response to detecting that the remaining useful life of the physical component has reached the predetermined threshold so that failure of the physical component does not cause the network to become unavailable to any user of the network. Various other methods, systems, and computer-readable media are also disclosed.

Claims

1. A computer-implemented method comprising:

receiving, from a health-indicator sensor, at least one health indicator of a physical component of a device in a network;

using the health indicator received from the health-indicator sensor to estimate a remaining useful life of the physical component;

detecting that the remaining useful life of the physical component has reached a predetermined threshold;

reconfiguring, while the physical component is operating within the network and in response to detecting that the remaining useful life of the physical component has reached the predetermined threshold, the network by performing at least one of;

reconfiguring an additional physical component in the network so that failure of the physical component does not cause the network to become unavailable to any user of the network;

reconfiguring the physical component so that;

workload of the physical component is reduced; and

workload of the additional physical component is increased, wherein the step of reconfiguring the network is performed by a computing device comprising at least one processor.

2. The method of claim 1, wherein reconfiguring the network further comprises:

determining a configuration of the network that allows the physical component to fail without causing the network to become unavailable to any user of the network;

proposing the configuration to an administrator of the network.

3. The method of claim 1, wherein:

reconfiguring the network further comprises determining a configuration of the network that allows a maintenance operation to be performed on the physical component without causing the network to become unavailable to any user of the network;

reconfiguring the additional physical component comprises applying the configuration to the network while the maintenance operation is performed on the physical component.

4. The method of claim 1, wherein:

failure of the physical component causes a user'"'"'s primary path through the network to become unavailable;

reconfiguring the additional physical component comprises reconfiguring the additional physical component such that the user'"'"'s traffic is rerouted to a secondary path through the network in response to expiration of a predetermined time period.

5. The method of claim 1, wherein:

failure of the physical component causes a user'"'"'s primary path through the network to become unavailable;

reconfiguring the additional physical component comprises reconfiguring the additional physical component such that the user'"'"'s traffic is rerouted to a secondary path through the network in response to failure of the physical component.

6. The method of claim 1, wherein:

the device is a network switch;

failure of the physical component causes the network to become unavailable to a user connected to the network through a port of the network switch;

reconfiguring the additional physical component comprises rerouting the user'"'"'s traffic through an additional port of the network switch in response to at least one of;

expiration of a predetermined time period;

failure of the physical component.

7. The method of claim 1, wherein:

the device is a network switch;

failure of the physical component causes the network to become unavailable to a user connected to the network through the network switch;

reconfiguring the additional physical component comprises rerouting the user'"'"'s traffic through an additional network switch in response to at least one of;

expiration of a predetermined time period;

failure of the physical component.

8. The method of claim 1, wherein:

failure of the physical component causes a user'"'"'s primary path through the network to become unavailable;

detecting that the remaining useful life of the physical component has reached the predetermined threshold comprises detecting, while periodically monitoring the remaining useful life of the physical component, that a rate of change in the remaining useful life of the physical component exceeds an additional predetermined threshold;

reconfiguring the additional physical component comprises reconfiguring the additional physical component such that the user'"'"'s traffic is rerouted to a secondary path through the network in response to detecting that the remaining useful life of the physical component exceeds the additional predetermined threshold.

9. The method of claim 1, wherein:

the device comprises a redundant physical component;

reconfiguring the additional physical component comprises causing the device to use the redundant physical component in place of the physical component.

10. The method of claim 1, wherein reconfiguring the network comprises reconfiguring the network so that the remaining useful life of the physical component is prolonged.

11. The method of claim 1, wherein reconfiguring the additional physical component comprises reconfiguring the additional physical component such that the workload of the physical component is reduced.

12. The method of claim 1, wherein reconfiguring the additional physical component comprises reconfiguring the additional physical component of the device so that the remaining useful life of the physical component is prolonged.

13. The method of claim 1, wherein:

the physical component and the additional physical component perform a function;

reconfiguring the additional physical component comprises reconfiguring the additional component to perform more of the function;

reconfiguring the physical component comprises reconfiguring the physical component to perform less of the function.

14. The method of claim 1, wherein:

receiving the health indicator of the physical component comprises receiving a first health indicator of the physical component and a second health indicator of the physical component;

using the health indicator to estimate the remaining useful life of the physical component comprises using the first health indicator and the second health indicator to estimate the remaining useful life of the physical component.

15. The method of claim 1, wherein:

receiving the health indicator of the physical component comprises receiving a health indicator of a group of related physical components;

using the health indicator to estimate the remaining useful life of the physical component comprises using the health indicator of the group of related physical components to estimate the remaining useful life of the physical component.

16. The method of claim 1, wherein:

detecting that the remaining useful life of the physical component has reached the predetermined threshold comprises detecting that a remaining useful life of each physical component in a group of related physical components has simultaneously reached the predetermined threshold;

reconfiguring the additional physical component so that failure of the physical component does not cause the network to become unavailable to any user of the network comprises reconfiguring, in response to detecting that the remaining useful life of each physical component in the group of related physical components has simultaneously reached the predetermined threshold, the additional physical component so that failure of the group of related physical components does not cause the network to become unavailable to any user of the network.

17. The method of claim 1, further comprising:

detecting, after the network is reconfigured in response to detecting that the remaining useful life of the physical component has reached the predetermined threshold, that the remaining useful life of the physical component has reached an additional predetermined threshold;

reconfiguring the network in response to detecting that the remaining useful life of the physical component has reached the additional predetermined threshold.

18. The method of claim 1, wherein:

the device is a network switch;

the physical component comprises at least one of;

an optical transceiver;

a fan;

an air filter;

a battery;

a hard disk drive;

a solid state drive;

a hybrid memory cube;

static random access memory;

dynamic random access memory;

electrically erasable programmable read-only memory;

flash memory;

a relay;

a switch;

an electrolytic capacitor;

a power field-effect transistor;

a power supply;

a power converter;

a microprocessor;

a microcontroller;

an application-specific integrated circuit.

19. A system comprising:

a monitoring module, stored in memory, that receives, from a health-indicator sensor, at least one health indicator of a physical component of a device in a network;

an estimating module, stored in memory, that uses the health indicator to estimate a remaining useful life of the physical component;

a detecting module, stored in memory, that detects that the remaining useful life of the physical component has reached a predetermined threshold;

a reconfiguring module, stored in memory, that reconfigures, while the physical component is operating within the network, the network by performing at least one of;

reconfiguring an additional physical component in the network so that failure of the physical component does not cause the network to become unavailable to any user of the network;

reconfiguring the physical component so that;

workload of the physical component is reduced; and

workload of the additional physical component is increased;

at least one physical processor that executes the monitoring module, the estimating module, the detecting module, and the reconfiguring module.

20. A non-transitory computer-readable medium comprising one or more computer-executable instructions that, when executed by at least one processor of at least one network device, cause the network device to:

receive, from a health-indicator sensor, at least one health indicator of a physical component of a device in a network;

use the health indicator received from the health-indicator sensor to estimate a remaining useful life of the physical component;

detect that the remaining useful life of the physical component has reached a predetermined threshold;

reconfigure, while the physical component is operating within the network and in response to detecting that the remaining useful life of the physical component has reached the predetermined threshold, the network by performing at least one of;

reconfiguring an additional physical component in the network so that failure of the physical component does not cause the network to become unavailable to any user of the network;

reconfiguring the physical component so that;

workload of the physical component is reduced; and

workload of the additional physical component is increased.