The apparatus further includes an allocation circuit for executing access time allocation with {TAIL ~ respect} to a packet processing time allowed for processing each of {HEAD ~ the packets} 
The apparatus further includes an allocation circuit for executing access time allocation with { TAIL ~ respect } to a packet processing time allowed for processing each of { HEAD ~ the packets }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD