This paper has an analysis on actions of traffic throughput and traffic overload management based on a new intelligent controller for industrial Ethernet: ICIE (Intelligent Controller for Industrial Ethernet). It proposed a new mechanism to minimize the congestion which is based on the taking an adaptive decision during transferring multicast messages. It also focuses on the actions analysis on traffic throughput to achieve and improve the traffic throughput goal. It has a further discussion on four conditions of traffic management: detection of traffic overload, measures to be taken to avoid traffic overload, traffic overload behavior, traffic overload recovery. It is through the external devices solicitation of join messages that allow the ICIE component to correctly decipher on which ports the downstream listeners are connected.