US Patent 11882026 Method and node for packet transmission in network

A method for packet transmission in a network includes receiving, by a first node, a second segment identifier sent by the third node, receiving, by the first node, a packet sent by the second node through the first path, determining, by the first node, that a next-hop node of the first node on the first path is faulty, and in response to the determining, by the first node, that a next-hop node of the first node on the first path is faulty, adding, by the first node, the second segment identifier to the packet, and sending the packet to the third node through a second path, where the second path is established by the first node based on the second segment identifier.