公开(公告)号：US20220337508A1

公开(公告)日：2022-10-20

申请号：US17852700

申请日：2022-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Shunwan Zhuang ,  Junli Jia ,  Hong Wu ,  Shuqiang Wang

IPC: H04L45/02

Abstract: A path verification method includes a network device obtains path information of a packet forwarding path passing through a third autonomous system (AS), a second AS, and a first AS in sequence, and the third AS, the second AS, and the first AS are sequentially adjacent. The network device determines a first business relationship of a first AS pair and a second business relationship of a second AS pair, where the first AS pair includes the first AS and the second AS that are sequentially arranged, and the second AS pair includes the second AS and the third AS that are sequentially arranged. The network device determines, based on the first business relationship and the second business relationship, whether the packet forwarding path is valid.