Patent ID: 9596139
Date: 2017-03-14
CPC Classifications: H04L

Claim:
1. A first network device comprising: a link circuit configured to generate a first parameter based on whether a link is established between the first network device and a second network device; a collision circuit configured to generate a second parameter based on whether a collision between transmitted signals has occurred as a result of (i) first data being transmitted from the first network device to the second network device while (ii) second data is transmitted from the second network device to the first network device; an auto-negotiation circuit configured to generate a third parameter based on whether an auto-negotiation procedure has been performed between the first network device and the second network device; a data rate circuit configured to generate a fourth parameter based on whether a transmission rate at which the first data is being transmitted over the link is equal to or within a predetermined range of a predetermined rate; and a duplex circuit configured to, based on the first parameter, the second parameter, the third parameter, and the fourth parameter (i) determine a duplex mode of the first network device, (ii) determine a duplex mode of the second network device, or (iii) transition the first network device between a half-duplex mode and a full-duplex mode.