From 1a7d4acf418f61eeaa4a1db7256ffd0201048912 Mon Sep 17 00:00:00 2001 From: Grant Slater Date: Sun, 13 Feb 2022 23:06:49 +0000 Subject: [PATCH] Enable BBR at Dublin with sufficient uplink and switch capacity --- roles/equinix-dub.rb | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/roles/equinix-dub.rb b/roles/equinix-dub.rb index fb074324c..349732e9a 100644 --- a/roles/equinix-dub.rb +++ b/roles/equinix-dub.rb @@ -2,6 +2,15 @@ name "equinix-dub" description "Role applied to all servers at Equinix Dublin" default_attributes( + :sysctl => { + :enable_bbr_10g => { + :comment => "Enable BBR. Equinix Dub has 10G uplink unlikely to buffer overrun", + :parameters => { + "net.ipv4.tcp_congestion_control" => "bbr", + "net.ipv4.tcp_notsent_lowat" => "16384" + } + } + }, :networking => { :roles => { :internal => { -- 2.39.5