Thus, the level in scheduling hierarchy 400 of the parent scheduler of a queue might be configured by {HEAD ~ a control processor} of the network processor to achieve {TAIL ~ a certain desired scheduling rate} 
Thus , the level in scheduling hierarchy 400 of the parent scheduler of a queue might be configured by { HEAD ~ a control processor } of the network processor to achieve { TAIL ~ a certain desired scheduling rate }
OTH 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 OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL