In {HEAD ~ some instances}, IDP device 138 may also represent {TAIL ~ the above described specialized security device} that applies a higher level of patterns to detect more severe network attacks 
In { HEAD ~ some instances } , IDP device 138 may also represent { TAIL ~ the above described specialized security device } that applies a higher level of patterns to detect more severe network attacks
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH