Multiplex communications – Wide area network – Packet switching
Patent
1995-12-29
1998-06-02
Lall, Parshotam S.
Multiplex communications
Wide area network
Packet switching
39520048, 370428, G06F 1516
Patent
active
057614245
ABSTRACT:
A method and associated apparatus for automating the filtration and generation of information in a packetized communication system. A filtration table includes entries used in recognizing a valid packet received at a node in a communication system. A mask field in each entry is applied to appropriate fields in the packet (e.g. the ordered set as applied to Fibre Channel communication systems) to determine the validity of the packet with regard to the receiving node. Rules in a field of each entry further qualify the recognition of a received packet (e.g. ordered set) by testing the reception of the packet against other logical rules. Action fields in each record permit definition of actions to be invoked automatically (e.g. automatic adjustment of fill transmissions in Fibre Channel applications) in response to receipt and recognition of a particular packet. The set of packets recognized by the receiving node may be modified by adding, deleting, or modifying the entries in the filtration table. The programmable filtration thereby permits simple modifications to the protocol supported by the receiving node. Programmable generation capabilities of the present invention permit rapid integration of additional packets (e.g. ordered sets) transmitted in response to perceived packets in the receiving node. Programmable parameters in the receiving node permit automatic generation and transmission of packets in accordance with the parameter settings at the time of packet transmission.
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Adams John M.
Hoglund Timothy E.
Johnson Stephen M.
Reber Mark A.
Weber David M.
Bailey Wayne P.
Fishman Daniel N.
Lall Parshotam S.
Maung Zarni
Symbios, Inc.
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