Method and apparatus for programmable filtration a

专利名称：Method and apparatus for programmable

filtration and generation of information inpacketized communication systems

发明人：John M. Adams,Timothy E. Hoglund,Stephen

M. Johnson,Mark A. Reber,David M. Weber

申请号：US08/580955申请日：19951229公开号：US05761424A公开日：19980602

摘要：A method and associated apparatus for automating the filtration andgeneration of information in a packetized communication system. A filtration tableincludes entries used in recognizing a valid packet received at a node in a communicationsystem. A mask field in each entry is applied to appropriate fields in the packet (e.g. theordered set as applied to Fibre Channel communication systems) to determine thevalidity of the packet with regard to the receiving node. Rules in a field of each entryfurther qualify the recognition of a received packet (e.g. ordered set) by testing thereception of the packet against other logical rules. Action fields in each record permitdefinition of actions to be invoked automatically (e.g. automatic adjustment of filltransmissions in Fibre Channel applications) in response to receipt and recognition of aparticular packet. The set of packets recognized by the receiving node may be modifiedby adding, deleting, or modifying the entries in the filtration table. The programmablefiltration thereby permits simple modifications to the protocol supported by thereceiving node. Programmable generation capabilities of the present invention permit

rapid integration of additional packets (e.g. ordered sets) transmitted in response toperceived packets in the receiving node. Programmable parameters in the receiving nodepermit automatic generation and transmission of packets in accordance with theparameter settings at the time of packet transmission.

申请人：SYMBIOS, INC.

代理人：Daniel N. Fishman,Wayne P. Bailey

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