| 摘要 |
The invention relates to the selection of a virtual path or virtual channel in response to a connection request in a communications network. To achieve a fast selection of a valid virtual path, the available virtual paths are divided into three categories so that the first category ( 1 ) includes virtual paths that were accepted the last time they were tested, the second category ( 2 ) includes virtual paths that were rejected the last time they were tested, and the third category ( 3 ) includes the rest of the available virtual paths. A virtual path is moved from the second category to the third category according to a predetermined criterion. Virtual paths are tested in order so that first the virtual paths in the first category are tested, then the virtual paths in the third category, and finally the virtual paths in the second category. Virtual channels can be selected in the same way. |
