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1. (WO2018076715) AUTO-NEGOTIATION METHOD AND DEVICE FOR PORT

Pub. No.:    WO/2018/076715    International Application No.:    PCT/CN2017/088528
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Jun 16 01:59:59 CEST 2017
IPC: H04L 12/28
H04L 12/24
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: KONG, Weibin
孔维宾
LI, Jianzhao
李剑钊
ZHENG, Guolan
郑国兰
Title: AUTO-NEGOTIATION METHOD AND DEVICE FOR PORT
Abstract:
An auto-negotiation method and device for a port, for implementing port auto-negotiation between high-speed Ethernet devices. The method comprises: a first device configuring a first port of the first device to be four sub-ports, wherein each of the four sub-ports comprises one differential transceiving channel; the first device determining at least one sub-port with a normally operating differential transceiving channel in the four sub-ports, and selecting some or all of the sub-ports from the at least one sub-port as a normal sub-port; the first device sending capability information about the first port to a second device via the normal sub-port, and receiving capability information, sent by the second device, about a second port of the second device via the normal sub-port; and the first device configuring operating states of the four sub-ports according to the capability information about the first port and the capability information about the second port, wherein both the first device and the second device are high-speed Ethernet devices, and the second device uses the same method as the first device to implement the auto-negotiation of the second port.