From d0a31dfa6b8febe08448be2eb51fa7feecc634c3 Mon Sep 17 00:00:00 2001
From: Grant Slater <github@firefishy.com>
Date: Sun, 17 Aug 2025 22:57:17 +0100
Subject: [PATCH] Use BBR congestion control for both Equinix sites

---
 roles/equinix-ams.rb | 9 +++++++++
 roles/equinix-dub.rb | 6 +++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/roles/equinix-ams.rb b/roles/equinix-ams.rb
index c63522bbc..0f6a6abd1 100644
--- a/roles/equinix-ams.rb
+++ b/roles/equinix-ams.rb
@@ -2,6 +2,15 @@ name "equinix-ams"
 description "Role applied to all servers at Equinix Amsterdam"
 
 default_attributes(
+  :sysctl => {
+    :enable_bbr_10g => {
+      :comment => "Enable BBR. Equinix AMS has 3Gbps uplinks",
+      :parameters => {
+        "net.core.default_qdisc" => "fq",
+        "net.ipv4.tcp_congestion_control" => "bbr"
+      }
+    }
+  },
   :networking => {
     :interfaces => {
       :internal => {
diff --git a/roles/equinix-dub.rb b/roles/equinix-dub.rb
index 741c09ab7..3c6311a4e 100644
--- a/roles/equinix-dub.rb
+++ b/roles/equinix-dub.rb
@@ -4,10 +4,10 @@ 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",
+      :comment => "Enable BBR. Equinix DUB has 3Gbps uplinks",
       :parameters => {
-        "net.ipv4.tcp_congestion_control" => "bbr",
-        "net.ipv4.tcp_notsent_lowat" => "16384"
+        "net.core.default_qdisc" => "fq",
+        "net.ipv4.tcp_congestion_control" => "bbr"
       }
     }
   },
-- 
2.39.5