#
#
# Packet delays so we can see TFO operational in packet captures
-sudo perl
-system ("tc qdisc add dev lo root netem delay 50ms");
-****
-#
# Wipe any stored TFO cookie, to start from known state.
+# Disable TFO blackhole-detection as we seem to be running afoul of that
sudo perl
+system ("tc qdisc add dev lo root netem delay 50ms");
system ("ip tcp_metrics delete 127.0.0.1");
+system ("[ -e /proc/sys/net/ipv4/tcp_fastopen_blackhole_timeout_sec ] && echo 0 > /proc/sys/net/ipv4/tcp_fastopen_blackhole_timeout_sec");
****
#
#
#
sudo perl
system ("tc qdisc delete dev lo root");
+system ("[ -e /proc/sys/net/ipv4/tcp_fastopen_blackhole_timeout_sec ] && echo 3600 > /proc/sys/net/ipv4/tcp_fastopen_blackhole_timeout_sec");
****
#
no_msglog_check