| 摘要 |
The present invention discloses a method of obtaining forwarding information in a network node device (200). The network node device is used to configure local repair for its downstream node or downstream link to be protected in at least one transport path. The method comprises building (210) a discovery message for discovering the forwarding information, wherein the discovery message contains information related to the at least one transport path; transmitting (220) the discovery message over a protection path for protecting the downstream node or downstream link to a peer end device of the protection path; and receiving (230) a discovery response message containing the forwarding information from the peer end device, the discovery response message being built by the peer end device on the basis of the discovery message. The present invention does not depend on existence of control plane, and does not depend on any other communication capability (e.g., Internet Protocol) between the network node device for configuring local repair and the peer end device, in which the communication is solely based on the protection SPME. |
