diff options
| author | Stefano Brivio <sbrivio@redhat.com> | 2021-10-12 22:56:36 +0200 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2021-10-14 13:15:12 +0200 |
| commit | 4869d309e122445ee43ab79e00bd3b1dfa9d9275 (patch) | |
| tree | 528ce4bf60b53ba67a2463da81d10caa915e9de6 | |
| parent | c9d57fee7c870d0421c01fa9899065e4a68020ce (diff) | |
| download | passt-4869d309e122445ee43ab79e00bd3b1dfa9d9275.tar passt-4869d309e122445ee43ab79e00bd3b1dfa9d9275.tar.gz passt-4869d309e122445ee43ab79e00bd3b1dfa9d9275.tar.bz2 passt-4869d309e122445ee43ab79e00bd3b1dfa9d9275.tar.lz passt-4869d309e122445ee43ab79e00bd3b1dfa9d9275.tar.xz passt-4869d309e122445ee43ab79e00bd3b1dfa9d9275.tar.zst passt-4869d309e122445ee43ab79e00bd3b1dfa9d9275.zip | |
doc: Fix up note about missing tcpi_snd_wnd in man page
The behaviour without tcpi_snd_wnd changed: the only difference now
is the advertised window, which corresponds to the queried sending
buffer size.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
| -rw-r--r-- | passt.1 | 10 |
1 files changed, 3 insertions, 7 deletions
@@ -695,13 +695,9 @@ option, see \fBtcp\fR(7). Before Linux 5.3, i.e. before Linux kernel commit 8f7baad7f035 ("tcp: Add snd_wnd to TCP_INFO"), the sending window (\fIsnd_wnd\fR field) is not available. -If the sending window cannot be queried, it will always be announced as a fixed -value to guest or target namespace (14 600 bytes, suggested by RFC 6928), and -segments received by guest or target namespace will be acknowledged as soon as -the corresponding payload is enqueued to the corresponding socket. The normal -behaviour is to acknowledge segments only as the remote peer acknowledges the -corresponding payload, in order to reflect the congestion control dynamic back -to the sender. This might affect throughput of TCP connections. +If the sending window cannot be queried, it will always be announced as the +current sending buffer size to guest or target namespace. This might affect +throughput of TCP connections. .SH LIMITATIONS |