FIELD: radio engineering, communication.
SUBSTANCE: present invention relates to an electronic device used in a system for monitoring and controlling a manufacturing process. A method of limiting the amount of network traffic reaching a local node in an electronic device operating according to an Ethernet networking protocol and using a network stack comprising at least one physical layer (31) (PHY) and at least one link layer (32), preferably a media access controller (2) (MAC). The electronic device is connected to a communication network, the network traffic is filtered, and an unwanted data reception is filtered out. Filtering the network traffic takes place during reception. Network traffic is inspected, and if an unwanted reception is detected, the unwanted data are discarded when it reaches media access controller (MAC) (2) of the network stack of said electronic device.
EFFECT: improved network traffic filtering, which increases network robustness.
20 cl, 5 dwg
