Switching circuitry couples the execution engines to a plurality of gather engines, which generate {HEAD ~ the packets} responsive to {TAIL ~ the gather entries} 
responsive to
Switching circuitry couples the execution engines to a plurality of gather engines , which generate { HEAD ~ the packets } responsive to { TAIL ~ the gather entries }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL