Transmission path determining method and apparatus

Abstract

This application provides a transmission path determining method and apparatus. The method includes: A first network device obtains an SR policy, where the SR policy includes active path information and backup path information. The active path information includes a first update threshold and at least one first segment list, the first segment list indicates an SR path for traffic from the first network device to a second network device, and the first update threshold indicates a threshold used to update an SR path from the first network device to the second network device. When transmitting the traffic through a path indicated by the active path information, the first network device determines, based on the first update threshold and transmission performance of an SR path indicated by each first segment list, whether quality of service of the current transmission path meets an expectation.

Dependencies are inferred from the claim text.