From: Grant Slater <grant.slater@wearefriday.com>
Date: Tue, 29 Mar 2016 14:51:50 +0000 (+0100)
Subject: Use RFC4821 suggested base MSS when using PLPMTUD
X-Git-Url: https://git.openstreetmap.org/chef.git/commitdiff_plain/3e2102f454444729f62c5f84ea6b62370afdb62e?ds=sidebyside

Use RFC4821 suggested base MSS when using PLPMTUD
---

diff --git a/roles/base.rb b/roles/base.rb
index 529d23ba4..5ffc5dee9 100644
--- a/roles/base.rb
+++ b/roles/base.rb
@@ -27,7 +27,10 @@ default_attributes(
     },
     :blackhole => {
       :comment => "Do TCP level MTU probing if we seem to have an ICMP blackhole",
-      :parameters => { "net.ipv4.tcp_mtu_probing" => "1" }
+      :parameters => {
+        "net.ipv4.tcp_mtu_probing" => "1",
+        "net.ipv4.tcp_base_mss" => "1024"
+      }
     },
     :network_buffers => {
       :comment => "Tune network buffers",