Packet routing with redundant network devices
US11924088B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2021 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Feb 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An environment includes at least two network devices and a plurality of downstream devices or networks. The downstream devices or networks are communicatively coupled to network interfaces of the network devices using a plurality of data cables. The data cables each comprise a switch device configured to switch communication paths to the coupled network devices. Each of the data cables communicatively couple each of the network devices to one of the plurality of downstream devices or networks so that each of the downstream devices or networks has a communications path to each of the network devices and a switchable communications path from each of the network devices. The network devices do not arbitrate active/passive status via direct communication. Based on data contained in a reply packet indicating that a request packet sent by the first network device was acknowledged, the first network device determines that the first network device is an active network device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.