| 摘要 |
The present invention discloses a method, node device, and system for establishing a label switched path, which belong to the field of communications technologies. The method includes: receiving a connection establishment request message sent by a source node to a sink node, where the connection establishment request message carries bandwidth request information corresponding to different conditions, and each of the bandwidth request information corresponds to one condition; and reserving, according to the bandwidth request information corresponding to the different conditions, a corresponding bandwidth resource in subsidiary remaining bandwidth corresponding to the different conditions on a local link, thereby establishing a connection between the source node and the sink node. In the embodiments of the present invention, the different conditions and the bandwidth request information corresponding to the different conditions are carried in the initiated connection establishment request message, so that the nodes on the label switched path may reserve bandwidth information according to their own characteristics, and enable maximum utilization of the bandwidth resource under a precondition that link availability is ensured. |
