i read that queue- size sould be set according to BDP.

But when we calculate BDP=Bandwidth*Delay

                                         =b/s*s

                                          =b

                                           =b/8(B)

So it is in terms of bytes or bits.

But in NS2 we can set queue-size in terms of packet only.

"$ns queue-limit no_of_packets"

So anybody please tell   how can i set it??

Thanks