| 摘要 |
Embodiments of the present invention disclose a flow label negotiation method, a related device, and a system, which are used for solving the problem of unnecessary protocol overhead and incorrect processing caused by that a flow label mechanism cannot be used when a multi-path LSP forwarding technology is used. The method in the embodiments of the present invention includes: constructing an RSVP-TE path message, where the path message includes a first FL capability flag bit; marking a local FL transmit and receive capability in the first FL capability flag bit; sending the path message to an egress node through a load distribution node; receiving an RSVP-TE resv message which is sent by the egress node through the load distribution node, where the resv message includes a second FL capability flag bit; and obtaining, from the second FL capability flag bit, an FL transmit and receive capability of the egress node, and completing FL negotiation. In addition, the embodiments of the present invention further provide a related device and a system for implementation of the method. |
