Load Information Sending Method and Apparatus, and Packet Sending Method and Apparatus

A method, applied to a first network device in a first device cluster, and comprising:

• obtaining a target packet to be sent to a destination device in a second device cluster;
• determining a target path from a first path and a second path based on first load information of a second network device in the second device cluster and second load information of a third network device in a third network device cluster, wherein the first path is from the first network device to the destination device through the second network device, wherein the second path is from the first network device to the destination device through the third network device, wherein the first load information is based on first traffic information of the second network device, and wherein the second load information is based on second traffic information of the third network device;
• and
• sending the target packet to the destination device through the target path.

A first network device comprising:

• a memory configured to store instructions;
• and
• one or more processors coupled to the memory and configured to execute the instructions to cause the first network device to:
• obtain traffic information of the first network device;
• determine first load information of the first network device based on the traffic information;
• and
• send the first load information to a second network device, wherein the second network device belongs to a second network device cluster, wherein the first load information for determining second load information of a path comprising a first subpath, and wherein the first subpath is from the second network device to the first network device.