Hello, I am using TCP/Reno in ns-allinone-2.1b3. In the method TcpAgent::newtimer(), set_rtx_timer() is called in case of (t_seqno_ > tcph->seqno()). Shouldn't this be (t_seqno_ - 1 > tcph->seqno()), since, t_seqno_ would have been post-incremented in the previous call to output() in TcpAgent::send_much() ? Please correct me if i am wrong, Thanks, Vinay.