| 摘要 |
A method for processing a failure of a multi-domain path computation and a Path Computation Element (PCE) are provided. The method for the PCE of a head domain includes: a failed link leading to a failure to compute a path according to a first domain sequence is acquired; the failed link is deleted from a first topology to obtain a second topology; a second domain sequence is determined according to the second topology; and a path computation for the second domain sequence is initiated. In the solution disclosed herein, when a PCE computes a path from a source node to a destination node according to a first domain sequence, if the path is computed unsuccessfully for a failed link, then the failed link leading to a failure to compute the path is deleted from the topology of the PCE of the head domain to obtain a second topology, then a second domain sequence is generated according to the second topology and a path computation is carried out according to the second domain sequence, thereby determining a final path from a source node to a destination node. |
