| 摘要 |
In one embodiment, a node of a computer network receives a request to establish a traffic engineering (TE) label switched path (LSP). The node accesses a pre-defined range of preemption-priority values that may be used with the requested TE-LSP. The node determines a preemption-priority value at which adequate network resources to accommodate the requested TE-LSP would be available that is as low as possible within the pre-defined range of preemption-priority values. The node signals the requested TE-LSP with the determined preemption-priority value. The node receives notifications from one or more other nodes within the computer network indicating information about other TE-LSPs that would be preempted if the requested TE-LSP were established at the determined preemption-priority value. In response to the information regarding other TE-LSPs that would be preempted, the node determines whether to proceed with establishment of the requested TE-LSP at the determined preemption-priority value. |
