[ns] regarding NS TCP implementation!!!

[Kaleelazhicathu R R Kumar <kaleelaz@comp.nus.edu.sg>]

hi all,
  can anyone tell me whether the tcp implementation in NS sends packets
irrespective of their size individually or does it simulate the actual TCP
in aggregating the smaller packets in a single segment...what i mean to
say is..considering that packets are of sizes smaller than the segment
size,will these smaller packets be aggregated in a single segment as is
done in actual tcp implementation???
  thanks..
  Renjish...