Patent ID: 9105377
Filing Date: 2015-08-11
Classification: H01B,H04L

Abstract:
1. An auto-negotiation method, comprising: transmitting, by a physical layer device, first auto-negotiation information to a link partner device, the first auto-negotiation information including first physical layer device type information, the first physical layer device type information distinguishing between a first physical layer device type defined by a first link rate over a twisted pair network cable having a length up to a first operational distance limit, and a second physical layer device type defined by a second link rate over a twisted pair network cable having a length up to a second operational distance limit, the first operational distance limit being different from the second operational distance limit; receiving, by the physical layer device, second auto-negotiation information from the link partner device, the second auto-negotiation information including second physical layer device type information, the second physical layer device type information distinguishing between a third physical layer device type defined by a third link rate over a twisted pair network cable having a length up to a third operational distance limit, and a fourth physical layer device type defined by a fourth link rate over a twisted pair network cable having a length up to a fourth operational distance limit, the third operational distance limit being different from the fourth operational distance limit; and configuring an operation of the physical layer device based on a comparison of the first auto-negotiation information and the second auto-negotiation information.