Huawei Technologies Co., Limited

Hongwei Niu

Song Liu

Jinhui Wang

Yunlei Qi

Liqing Chen

A packet processing method includes receiving a first packet by a first receiving interface of a media conversion module of a first network device, where the first packet includes a first alignment marker (AM), sending a second packet by a first sending interface of the media conversion module, where the second packet includes the first AM, and where the second packet is the first packet processed by the media conversion module, and calculating a time interval Tbetween a time at which the media conversion module receives the first packet and a time at which the media conversion module sends the second packet, where the Tis used to compensate for a first timestamp at which the first network device receives or sends the third packet.

Packet processing method and network device

A time synchronization method includes receiving, by a receive-end device, a first timestamp and a first header signal sent by a transmit-end device, where the first timestamp indicates a first moment at which a first channel medium conversion module sends the first header signal, and a second moment at which the receive-end device receives the first header signal. The method further includes sending a second header signal to the transmit-end device, where a third moment at which the receive-end device sends the second header signal. The method further includes receiving a fourth timestamp sent by the transmit-end device, where the fourth timestamp indicates a fourth moment at which the transmit-end device receives the second header signal. The method further includes synchronizing time with the transmit-end device based on the first moment, the second moment, the third moment, and the fourth moment.

Time synchronization method and device

A packet processing method includes receiving a first packet by a first receiving interface of a media conversion module of a first network device, where the first packet includes a first alignment marker (AM), sending a second packet by a first sending interface of the media conversion module, where the second packet includes the first AM, and the second packet is the first packet processed by the media conversion module, and calculating a time interval Tbetween a time at which the media conversion module receives the first packet and a time at which the media conversion module sends the second packet, where the Tis used to compensate for a first timestamp at which the first network device receives or sends the third packet.

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Chengdu, China

Hongwei Niu