SECURITY FRAMEWORK FOR TRANSMITTING COMMUNICATION MESSAGES BETWEEN A SUBSTATION LAN AND PACKET-SWITCHED WAN

The invention relates to the field of a security framework for transmitting communication messages between a Substation LAN and packet-switched WAN, in particular, a network interface for transmitting protection data in a power network. The present invention provides a network interface for transmit...

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Bibliographic Details
Main Authors MAAG, Hans-Joerg, CACHIN, Dominique, GYGAX, Alex
Format Patent
LanguageEnglish
French
German
Published 28.02.2018
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The invention relates to the field of a security framework for transmitting communication messages between a Substation LAN and packet-switched WAN, in particular, a network interface for transmitting protection data in a power network. The present invention provides a network interface for transmitting communication data including protection data of a power communication network, between a Substation Ethernet LAN and a packet-switched WAN usually in Layer 2. The network interface comprises: a firewall and a layer 3 router being connected with each other and adapted to transmit the communication data excluding the protection data; and a layer 2 bypass being in parallel with the firewall and the layer 3 router, and adapted to transmit the protection data. According to a further aspect, the present invention also provides a method for transmitting such communication data.
Bibliography:Application Number: EP20140803121