Patent ID: 11888732
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A transmission path fault processing method, comprising:
receiving, by a first network device, a stitching label and a stitching label stack list corresponding to the stitching label that are sent by a stitching network device;
determining, by the first network device in a process of sending a packet through a primary path, that the stitching network device is faulty, the packet comprising a label stack list used to guide packet forwarding on the primary path, and the stitching network device being a next-hop network device of the first network device on the primary path; and
replacing, by the first network device, the stitching label in the label stack list with the stitching label stack list, and switching, based on the updated label stack list, the packet to a backup path for sending.