| 摘要 |
<p>A method for protecting the service flow is provided, wherein a backup path is preset between the source node and the destination entity, the method includes steps: A, the source node switches the service flow to the backup path and transmits the service flow to the destination entity through the backup path, at the same time, the source node computes a hypo-excellent path by the route algorithm, and compares the hypo-excellent path with the backup path, if the hypo-excellent path is more excellent than the backup path, then implements the step B, if not, ends the program. B, the source node switches the service flow to the hypo-excellent path and transmits the service flow to the destination entity through the hypo-excellent path. A network device implementing the method for protecting the service flow is also provided. The method for protecting the service flow in the invention has the ability that the fast fault restoration.</p> |
