Multicast packet processing method, related apparatus, and device

An apparatus, comprising:

• at least one processor;
• and
• at least one memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
• obtain a first multicast packet, wherein the apparatus is a first node, destination information of the first multicast packet comprises a first identifier, a second identifier, and a third identifier, the first identifier indicates link information, the second identifier indicates a replication and forwarding operation, and the third identifier is used to index destination information corresponding to a second node;
• obtain a second multicast packet based on the first multicast packet and the third identifier, wherein destination information of the second multicast packet is the destination information corresponding to the second node;
• and
• obtain a third multicast packet based on the first multicast packet and the second identifier, wherein destination information of the third multicast packet is destination information corresponding to a third node, and the third node is determined based on a destination information index corresponding to a multicast packet obtained after the first multicast packet is replicated;
• and
• send the second multicast packet to the second node based on a link indicated by the first identifier;
• and
• send the third multicast packet to the third node based on a link indicated by destination information of the multicast packet that is obtained after the first multicast packet is replicated.