公开(公告)号：US20250097145A1

公开(公告)日：2025-03-20

申请号：US18963883

申请日：2024-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ling LI ,  Shixing LIU ,  Zhigang JI ,  Jie LI ,  Huafeng WEN ,  Haibo WANG ,  Songlin WANG

IPC: H04L45/28 ,  H04L45/00 ,  H04L45/655

Abstract: This application discloses a link fault handling method, a related apparatus, a storage medium, and a program product, and belongs to the field of communication technologies. In this method, a forwarding plane component of a network device updates a reference state table in time by actively polling a port status register, so that when forwarding a data flow, the forwarding plane component can sense a local faulty link in time based on the reference state table, and perform link switching in time, and a PHY chip does not need to report fault information to a control plane CPU in the network device, or wait for the control plane CPU to deliver an instruction. That is, this solution does not depend on control plane path computation, and does not require additional communication from a data plane to a control plane, to avoid a delay caused by fault handling of the CPU.