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