From 6b251858d377196b8cea20e65cae60f584a42735 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 28 Sep 2005 16:31:48 -0700 Subject: [PATCH] [TCP]: Fix init_cwnd calculations in tcp_select_initial_window() Match it up to what RFC2414 really specifies. Noticed by Rick Jones. Signed-off-by: David S. Miller --- net/ipv4/tcp_output.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index d6e3d269e906..caf2e2cff293 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -190,15 +190,16 @@ void tcp_select_initial_window(int __space, __u32 mss, } /* Set initial window to value enough for senders, - * following RFC1414. Senders, not following this RFC, + * following RFC2414. Senders, not following this RFC, * will be satisfied with 2. */ if (mss > (1<<*rcv_wscale)) { - int init_cwnd = 4; - if (mss > 1460*3) + int init_cwnd; + + if (mss > 1460) init_cwnd = 2; - else if (mss > 1460) - init_cwnd = 3; + else + init_cwnd = (mss > 1095) ? 3 : 4; if (*rcv_wnd > init_cwnd*mss) *rcv_wnd = init_cwnd*mss; } -- GitLab