The data is forwarded from {HEAD ~ the network switch} based on {TAIL ~ the processing} performed by the dedicated modules 
based on
The data is forwarded from { HEAD ~ the network switch } based on { TAIL ~ the processing } performed by the dedicated modules
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH