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diff --git a/grid5000/steps/data/setup/puppet/modules/env/files/base/tuning/sysctl-00-grid5000.conf b/grid5000/steps/data/setup/puppet/modules/env/files/base/tuning/sysctl-00-grid5000.conf
new file mode 100644
index 0000000..ff44ed6
--- /dev/null
+++ b/grid5000/steps/data/setup/puppet/modules/env/files/base/tuning/sysctl-00-grid5000.conf
@@ -0,0 +1,6 @@
+#
+# Grid'5000 Tuning
+net.ipv4.tcp_rmem=4096 87380 67108864
+net.ipv4.tcp_wmem=4096 16384 67108864
+net.core.rmem_max = 4194304
+net.core.wmem_max = 4194304