Patent ID: 11863440
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A second network device in a network, wherein the network comprises a first network device and the second network device, there are a plurality of forwarding paths between the first network device and the second network device, and the second network device comprises:
a processor; and
a memory coupled to the processor and storing instructions for execution by the processor, the instructions instruct the processor to cause the second network device to:
receive a second packet, wherein the second packet is any one of a plurality of second packets that are generated by the first network device based on a first packet, the second packet comprises indication information, payload data carried in the first packet, and a packet sequence number of the first packet in a data flow corresponding to the first packet;
when the second network device determines that the second packet comprises the indication information, search a packet receiving table to determine whether the packet sequence number is in the packet receiving table, wherein the indication information is a Multi-Protocol Label Switching (MPLS) label or an Internet Protocol version 6 (IPv6) address;
if the packet sequence number is not in the packet receiving table, store the second packet; and
if the packet sequence number is in the packet receiving table, discard the second packet.