Link aggregation load balancing apparatus for performing initial allocation through load monitoring and performing dynamic adjustment through flow statistics and associated link aggregation load balancing method

A link aggregation load balancing apparatus comprising:

• a flow monitoring circuit, arranged to monitor flows of a plurality of member ports belonging to a link aggregation group, for performing classification upon the plurality of member ports to generate a member port classification result;
• an initial allocation circuit, arranged to refer to the member port classification result for selecting a target member port from the plurality of member ports, and initially allocate the target member port as a forward port of a data flow;
• a flow statistics circuit, arranged to gather flow statistics of each busy port included in the plurality of member ports, for generating a busy port flow statistics result;
• and
• a dynamic adjustment circuit, arranged to dynamically adjust a forward port of a specific data flow according to the busy port flow statistics result;
• wherein the flow monitoring circuit generates the member port classification result by comparing a flow of each member port included in the plurality of member ports with a threshold value to classify said each member port into an idle port or a busy port;
• and the flow monitoring circuit refers to the member port classification result to determine whether to trigger the flow statistics circuit to gather the flow statistics of said each busy port included in the plurality of member ports.