Ethernet auto-negotiation with parallel detect for 10G DAC or other non-auto-negotiated modes
US10164912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2016 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Oct 27, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/3054
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for Ethernet auto-negotiation (AN) with parallel detect for 10G DAC or other non-auto-negotiated modes. AN base pages are transmitted from an Ethernet apparatus to advertise the ability to support at least one Institute of Electrical and Electronics Engineers (IEEE) 802.3 Ethernet specification supporting AN. A receiver and associated processing circuitry is configured to perform two detection modes in parallel, including a first detection mode that looks for a valid signal transmitted from an Ethernet link peer that does not support AN and a second detection mode looking for AN pages from an IEEE 802.3 Ethernet link peer that supports AN. If the link peer does not support AN, an Ethernet link is set up to use signaling in accordance with the Ethernet specification that does not support AN. If the link peer supports AN, an Ethernet link is set up using a corresponding IEEE 802.3 Ethernet link supporting AN. Supported non-AN Ethernet links include 10G DAC links.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.