NETWORK PROTECTION METHOD AND APPARATUS, AND NODE, SYSTEM AND STORAGE MEDIUM

Provided in the present application are a network protection method and apparatus, and a node, a system and a storage medium. The method is applied to the current node, wherein there are at least two nodes before the current node, and the current node is connected to the last node among the at least two nodes by means of an operation channel and a protection channel. The method comprises: the current node acquiring defect processing times respectively corresponding to an operation channel and a protection channel; and processing defects in the corresponding channels according to the defect processing times, so that the defect is not generated in the operation channel of the current node earlier than in the protection channel, and the defect does not disappear from the protection channel of the current node earlier than from the operation channel. La présente invention concerne un procédé et un appareil de protection de réseau, et un nœud, un système et un support de stockage. Le procédé est appliqué au nœud a