{HEAD ~ A network switch} according to {TAIL ~ claim} 1 wherein said at least one data port interface is configured to receive data which includes a packet having headers, said portion of said data comprises a parsed field derived from said headers.1 
{ HEAD ~ A network switch } according to { TAIL ~ claim } 1 wherein said at least one data port interface is configured to receive data which includes a packet having headers , said portion of said data comprises a parsed field derived from said headers.1
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