Testsuite: operational notes for TFO

[exim.git] / test / scripts / 4058-pipe-conn-tfo / 4058

diff --git a/test/scripts/4058-pipe-conn-tfo/4058 b/test/scripts/4058-pipe-conn-tfo/4058
index 2a06390957b5fad7ec5d003a92eb6cea2f8832c3..999cfad4a65c01e4801cdf776cf9498cc349c095 100644 (file)
--- a/test/scripts/4058-pipe-conn-tfo/4058
+++ b/test/scripts/4058-pipe-conn-tfo/4058
@@ -1,5 +1,8 @@
 # Early-pipelining, with TFO
 #
+# NOTE: ensure that TFO is fully enabled in the kernel.
+# For linux: sysctl net.ipv4.tcp_fastopen=3
+# 
 #
 # Packet delays so we can see TFO operational in packet captures
 # Wipe any stored TFO cookie, to start from known state.