Huawei Technologies Co., Limited

Xiugang Wei

Zhibo Hu

Sheng Fang

Shuying Liu

Guoqi Xu

Yaqun Xiao

Fang Gao

A packet sending method and a related device are disclosed. The method includes: A network device obtains a first packet, where an internet protocol extension header of the first packet includes a first identifier, and the first identifier indicates a service requirement corresponding to the first packet. The network device determines, based on the first identifier and a second identifier, path indication information corresponding to the first packet, where a destination address of the first packet includes the second identifier, and the path indication information herein includes one or more of a network slice identifier and a segment identifier list. The network device updates the first packet based on the path indication information to obtain a second packet, and sends the second packet.

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Beijing, China

Xiugang Wei