Hi Suppose that Node(A) want to send a packet(1000 byte) to Node(B). Propagation Delay =10ms Bandwidth=2Mbps CBR=1.9Mbps My question is that, is there any formula to calculate the number of packets that have been trnsfered during 10Second? NS-2 shows that 2352 packets have been sent. -- Regards; Hosseini Nazhad.