(This mail is the multi-post to freebsd-net-jp.
I'm sorry for the person who receives the duplicate mail.)
I have a question about the estimation RTT, RTO using
the information in tcpcb (t_srtt, t_rttvar).
I'm trying to estimate network status at the kernel level
using tcpcb information, obtain the estimation of RTT, RTO.
I know that UNIX is not allowed floating point calculation
in the kernel, so RTT estimator is implemented as using int.
However, I don't know the method of calculation of the now RTT, RTO
using t_srtt, t_rttvar in kernel tcpcb and so on.
I hope that it is useful that I obtain the [ms]-order RTT,RTO
>from that parameter.
If there is an information about this, or
anyone know the way of calculation,
please teach me.
Thanks.
Tatsuhiko.
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-net" in the body of the message
