Hardware-Based Granular Traffic Storm Protection

Hardware-Based Granular Traffic Storm Protection

Aspects of the present invention provide a device, method and system which utilize hardware-based granular evaluation of industrial control protocol packets to withstand traffic storms. In an embodiment, packet evaluation circuitry coupled to a port may be adapted to evaluate one or more protocol fi...

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Hauptverfasser: BALASUBRAMANIAN SIVARAM, BATKE BRIAN A
Format: Patent
Sprache:eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator BALASUBRAMANIAN SIVARAM
BATKE BRIAN A
description Aspects of the present invention provide a device, method and system which utilize hardware-based granular evaluation of industrial control protocol packets to withstand traffic storms. In an embodiment, packet evaluation circuitry coupled to a port may be adapted to evaluate one or more protocol fields contained in each inbound packet before switching circuitry can send the inbound packet to the proper destination. The inbound packet may be sent by the switching circuitry if it is a particular message, or may be selectively inhibited from being sent by the switching circuitry if the inbound packet does not contain the particular message for being sent and if the total number of bytes of the inbound packet type exceeds a threshold for the outbound port during a given period of time. As such, critical industrial applications may continue to operate in the presence of a traffic storm.
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In an embodiment, packet evaluation circuitry coupled to a port may be adapted to evaluate one or more protocol fields contained in each inbound packet before switching circuitry can send the inbound packet to the proper destination. The inbound packet may be sent by the switching circuitry if it is a particular message, or may be selectively inhibited from being sent by the switching circuitry if the inbound packet does not contain the particular message for being sent and if the total number of bytes of the inbound packet type exceeds a threshold for the outbound port during a given period of time. 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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Hardware-Based Granular Traffic Storm Protection
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