In particular, {TAIL ~ the network device} receives security classification information that maps a security class to {HEAD ~ one or more computing devices} 
In particular , { TAIL ~ the network device } receives security classification information that maps a security class to { HEAD ~ one or more computing devices }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD