{HEAD ~ The pointer value changes} over a period are labeled {TAIL ~ Extra Long Mega Frame} which consists of n Mega Frames 
are labeled
{ HEAD ~ The pointer value changes } over a period are labeled { TAIL ~ Extra Long Mega Frame } which consists of n Mega Frames
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH