HI, NS2 implements buffering in link, not in node. This is to model the link with large bandwidth-delay product. For example, consider a link with 100 Mbps link and 1 s propagation delay, and packets whose size is 1 Mbits. Then this link can stores upto 100 packets at any instance.
Best Regards, Teerawat Issariyakul http://www.ns2ultimate.com/ http://www.facebook.com/pages/Teerawat-Issariyakul/358240861417 http://twitter.com/T_Bear http://www.t-issariyakul.blogspot.com http://www.ece.ubc.ca/~teerawat On Jan 28, 2011, at 4:24 PM, Hosseini Nezhad wrote: > > Hi > > Suppose that, Node(A) want to send packets to Node(B) by TCP protocol. > > Node(A) send a packet , after deliver that ACK send 2 packets and > after deliver those ACk send 4 packets and ....... . > > The bandwidth =2Mbps > Propagation delay is= 10ms > Link's Queue length=20 > > My Question is : > Why some packets(almost 14 packets) go in link's queue?How I can > describe this event? > > Thanks >
