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