fix req loss for paper
fix req loss for paper

liviusATnetskope/second,horryq/tcpcopy,eliteYang/tcpcopy,daodaoliang/tcpcopy,sshling/tcpcopy,left2right/tcpcopy,u20024804/tcpcopy,sshling/tcpcopy,left2right/tcpcopy,horryq/tcpcopy,caosiyang/tcpcopy,u20024804/tcpcopy,ycaihua/tcpcopy,wfxiang08/tcpcopy,wfxiang08/tcpcopy,eliteYang/tcpcopy,ycaihua/tcpcopy,liviusATnetskope/second,caosiyang/tcpcopy,daodaoliang/tcpcopy