The switching hub transmits the received data only to designated ones among the connected devices, and transmits {HEAD ~ the received data} to {TAIL ~ the repeater hub} 
The switching hub transmits the received data only to designated ones among the connected devices , and transmits { HEAD ~ the received data } to { TAIL ~ the repeater hub }
OTH OTH OTH OTH OTH OTH 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