Load sharing method, root node device, leaf node device, and system

A first root node device, comprising:

• at least one non-transitory memory storing instructions;
• and
• at least one processor in communication with the at least one memory, the instructions when executed in the at least one processor is configured to:
• receive a message sent by a leaf node device, the message comprising a first identifier and configuration information, the first identifier indicating the leaf node device, the configuration information indicating a configuration mode requested by the leaf node device for load sharing from a root node device group to the leaf node device, and the root node device group comprising the first root node device;
• and
• determine a configuration result of the load sharing from the first root node device to the leaf node device by at least performing a hash calculation based on the first identifier and the configuration information from the message sent by the leaf node device, wherein the first root node device determines whether it is a primary root or a secondary root based on the configuration result.

A leaf node device, comprising:

• at least one memory storing instructions;
• and
• at least one processor in communication with the at least one memory, the instructions when executed in the at least one processor are configured to:
• generate a message, wherein the message comprises a first identifier and configuration information, the first identifier indicates the leaf node device, and the configuration information indicates a configuration mode requested by the leaf node device for load sharing from a root node device group to the leaf node device, wherein a configuration result determined by performing a hash calculation of the first identifier and the configuration information indicates whether a first root node device is a primary root or a secondary root of the leaf node device;
• and
• send the message to the first root node device, wherein the root node device group comprises the first root node device.