From: "Ilpo_Järvinen" <[EMAIL PROTECTED]>
Date: Mon, 6 Aug 2007 15:37:15 +0300 (EEST)
> @@ -805,13 +805,13 @@ void tcp_update_metrics(struct sock *sk)
> }
> }
>
> -/* Numbers are taken from RFC2414. */
> +/* Numbers are taken from RFC3390. */
> __u32 tcp_init_cwnd(struct tcp_sock *tp, struct dst_entry *dst)
> {
> __u32 cwnd = (dst ? dst_metric(dst, RTAX_INITCWND) : 0);
>
> if (!cwnd) {
> - if (tp->mss_cache > 1460)
> + if (tp->mss_cache >= 2190)
> cwnd = 2;
> else
> cwnd = (tp->mss_cache > 1095) ? 3 : 4;
I remember suggesting something similar about 5 or 6 years
ago and Alexey Kuznetsov at the time explained the numbers
which are there and why they should not be changed.
I forget the reasons though, and I'll try to do the research.
These numbers have been like this forever, FWIW.
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