Power optimization using dynamic bandwidth management between connected network devices

Patent metadata

Field	Value
Publication number	US-12452169-B2
Application number	US-202418647362-A
Country	US
Kind code	B2
Filing date	Apr 26, 2024
Priority date	Sep 26, 2023
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A first network device may create a port group for a plurality of links directly connected to a second network device, and may select the first network device as a controller network device and the second network device as a worker network device. The first network device may rank the plurality of links of the port group to generate a list of ranked links, and may select, from the list of ranked links, a highest ranked link as a control channel. The first network device may power off one or more of the plurality of links, except the control channel, based on one of a configuration, a policy, or a traffic prediction, and may identify a termination of a time period associated with powering off the one or more of the plurality of links. The first network device may power on the one or more of the plurality of links based on the termination of the time period.

First claim

What is claimed is:

1. A method, comprising:
creating, by a first network device, a port group for a plurality of links directly connected to a second network device;
selecting, by the first network device, the first network device as a controller network device and the second network device as a worker network device;
ranking, by the first network device, the plurality of links of the port group to generate a list of ranked links;
selecting, by the first network device and from the list of ranked links, a highest ranked link as a control channel; and
powering off, by the first network device, one or more of the plurality of links, except the control channel, based on one of a configuration, a policy, or a traffic prediction.

2. The method of claim 1 , further comprising:
performing a health check on the one or more of the plurality of links based on a health check time period.

3. The method of claim 1 , further comprising:
identifying an emergency condition; and
powering on the one or more of the plurality of links based on the emergency condition.

4. The method of claim 1 , further comprising:
identifying a termination of a time period associated with powering off the one or more of the plurality of links; and
powering on the one or more of the plurality of links based on the termination of the time period.

5. The method of claim 1 , wherein creating the port group for the plurality of links comprises one of:
utilizing a user configuration to create the port group for the plurality of links; or
automatically creating the port group for the plurality of links.

6. The method of claim 1 , wherein selecting the first network device as the controller network device and the second network device as the worker network device comprises one of:
selecting the first network device as the controller network device and the second network device as the worker network device based on a user input; or
selecting the first network device as the controller network device and the second network device as the worker network device based on network identifiers associated with the first network device and the second network device.

7. The method of claim 1 , wherein ranking the plurality of links of the port group to generate the list of ranked links comprises:
ranking the plurality of links of the port group to generate the list of ranked links based on network identifiers associated with the plurality of links.

8. A first network device, comprising:
one or more memories; and
one or more processors to:
create a port group for a plurality of links directly connected to a second network device;
select the first network device as a controller network device and the second network device as a worker network device;
rank the plurality of links of the port group to generate a list of ranked links;
select, from the list of ranked links, a highest ranked link as a control channel;
power off one or more of the plurality of links, except the control channel, based on one of a configuration, a policy, or a traffic prediction; and
perform a health check on the one or more of the plurality of links based on a health check time period.

9. The first network device of claim 8 , wherein the first network device and the second network device utilize the control channel for protocol message exchange.

10. The first network device of claim 8 , wherein the one or more processors are further to:
determine that the highest ranked link is disabled; and
select, from the list of ranked links, a next highest ranked link as the control channel.

11. The first network device of claim 8 , wherein the one or more processors, to power off the one or more of the plurality of links, are to:
power off the one or more of the plurality of links based on rankings of the plurality of links provided in the list of ranked links.

12. The first network device of claim 8 , wherein the configuration includes attributes associated with powering off the one or more of the plurality of links.

13. The first network device of claim 8 , wherein the policy includes conditions associated with powering off the one or more of the plurality of links.

14. The first network device of claim 8 , wherein the traffic prediction is generated by a machine learning model associated with the first network device.

15. A non-transitory computer-readable medium storing a set of instructions, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a first network device, cause the first network device to:
create a port group for a plurality of links directly connected to a second network device;
select the first network device as a controller network device and the second network device as a worker network device;
rank the plurality of links of the port group to generate a list of ranked links;
select, from the list of ranked links, a highest ranked link as a control channel;
power off one or more of the plurality of links, except the control channel, based on one of a configuration, a policy, or a traffic prediction;
identify a termination of a time period associated with powering off the one or more of the plurality of links; and
power on the one or more of the plurality of links based on the termination of the time period.

16. The non-transitory computer-readable medium of claim 15 , wherein the one or more instructions further cause the first network device to:
perform a health check on the one or more of the plurality of links based on a health check time period.

17. The non-transitory computer-readable medium of claim 15 , wherein the one or more instructions further cause the first network device to:
identify an emergency condition; and
power on the one or more of the plurality of links based on the emergency condition.

18. The non-transitory computer-readable medium of claim 15 , wherein the one or more instructions, that cause the first network device to create the port group for the plurality of links, cause the first network device to one of:
utilize a user configuration to create the port group for the plurality of links; or
automatically create the port group for the plurality of links.

19. The non-transitory computer-readable medium of claim 15 , wherein the one or more instructions, that cause the first network device to rank the plurality of links of the port group to generate the list of ranked links, cause the first network device to:
rank the plurality of links of the port group to generate the list of ranked links based on network identifiers associated with the plurality of links.

20. The non-transitory computer-readable medium of claim 15 , wherein the one or more instructions further cause the first network device to:
determine that the highest ranked link is disabled; and
select, from the list of ranked links, a next highest ranked link as the control channel.

Assignees

• Juniper Networks Inc

Inventors

• Ghosh Sandip Kumar
• Barth Jonathan C
• Sangli Srihari Ramachandra

Classifications

• H04L47/125

  by balancing the load, e.g. traffic engineering · CPC title

• H04L45/126

  minimising geographical or physical path length · CPC title

• H04L12/12

  Arrangements for remote connection or disconnection of substations or of equipment thereof · CPC title

• H04L45/03

  by updating link state protocols · CPC title

• H04L45/28

  using route fault recovery · CPC title