PACKET TRANSMISSION METHOD, APPARATUS AND SYSTEM, NETWORK DEVICE, AND STORAGE MEDIUM

This application discloses a packet transmission method, apparatus, and system, a network device, and a storage medium, and relates to the field of communication technologies. The method includes: A first network device receives an IP packet, and adds indication information to the IP packet and sends the IP packet. The indication information indicates to add processing information to an error packet corresponding to the IP packet. The processing information indicates a manner for processing the error packet. The error packet is generated by a second network device when the IP packet reaches a corresponding maximum hop count. According to the method, the processing information indicating the manner for processing the error packet can be carried in the error packet corresponding to the IP packet, so that the first network device can process the error packet based on the processing information.