Patent ID: 11863303
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. The apparatus according to claim 10, wherein the instructions, when executed by the processor, further cause the apparatus to be configured to:
after the service flow is switched from the first transmission path to the second transmission path, receive third link status information sent by a third network device, wherein the third link status information comprises third egress port information and a third bit error rate, the third egress port information indicates a third egress port of the third network device, the third network device is configured to send data traffic to a next-hop network device of the third network device along the first transmission path through the third egress port, and the third bit error rate indicates a bit error rate at which data traffic is sent through the third egress port; and
determine a third accumulated bit error rate of the first transmission path based on the third link status information, determine whether the third accumulated bit error rate is less than the first bit error rate threshold, and switch the service flow from the second transmission path back to the first transmission path when determining that the third accumulated bit error rate is less than the first bit error rate threshold, wherein
the third accumulated bit error rate is a weighted sum of bit error rates of all the egress ports configured to send data traffic on the first transmission path.