wherein said at least one data port interface is configured to receive data which includes a packet having headers, {HEAD ~ said portion} of said data comprises a parsed field derived from {TAIL ~ said headers} 
wherein said at least one data port interface is configured to receive data which includes a packet having headers , { HEAD ~ said portion } of said data comprises a parsed field derived from { TAIL ~ said headers }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL