| 摘要 |
A method for obtaining link aggregation group (LAG) information, and a node and a system thereof are provided, which belong to the field of communication technologies. The method includes the following steps. An ingress node of a label switched path (LSP) sends an echo request message to another node on the LSP, in which the message carries identification information, and the identification information is for identifying that the LAG information on the LSP needs to be obtained. The ingress node receives an echo reply message returned by said another node, in which the message carries LAG information between said another node and a next hop node on the LSP. The present invention implements the obtaining of LAG information on the LSP and brings great convenience to OAM of MPLS network, and has the advantages of being simple, convenient, and easy to implement and having strong practicality.
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