Thank you, Sally. I have another question about packet size to be used in rate calculations. Does it include only actual bytes of data, or generic header and options are to be counted as well? I was not able to find this information in 4342. B.R. Vladimir. >-----Original Message----- >From: ext Sally Floyd [mailto:sallyfloyd@xxxxxxx] >Sent: 05 November, 2007 03:18 >To: Moltchanov Vladimir (Nokia-NRC/Helsinki) >Cc: dccp@xxxxxxxx >Subject: Re: T_RTO & b values > >Vladimir - > >> I have two questions concerning some variables, that have to be >> plugged to the throughput equation. >> >> 1) Should I use t_RTO = max( 4Rtt, 1 sec) as stated in 3448bis? > >That is what I would recommend. RFC 3448, the official >standard at the moment, says that one could use either 4 RTT >or max( 4Rtt, 1 sec). > >> 2) What should be used for value of "b" (maximum number of packet >> ack'd by a single TCP acknowledgement)? > >RFC 3448 recommends b=1, and so does RFC3448bis. >I would recommend using b=1. > >- Sally >http://www.icir.org/floyd/ > >
