pespin submitted this change.

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testsuites/gtplab-sysmo2017/tunend: Disable GRO/LRO

This can cause problems on incoming decaps traffic from CN (eg. TCP),
which may end up being joined into a bigger packet which will then fail
to be encapsulated into UDP fitting an MTU of 1500.
This didn't show up specifically during tests since we are crafting UE UDP
traffic with proper size in order to fit the MTU, but it would have
shown up if TCP was used.

Change-Id: Iccc6e90e50e73bcadf0ea9f0470850a141a4c389
---
M testsuites/gtplab-sysmo2017/tunend/upf/eupf/configure.sh
M testsuites/gtplab-sysmo2017/tunend/upf/osmo-upf/configure.sh
2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/testsuites/gtplab-sysmo2017/tunend/upf/eupf/configure.sh b/testsuites/gtplab-sysmo2017/tunend/upf/eupf/configure.sh
index f812c45..bf0fe0e 100755
--- a/testsuites/gtplab-sysmo2017/tunend/upf/eupf/configure.sh
+++ b/testsuites/gtplab-sysmo2017/tunend/upf/eupf/configure.sh
@@ -7,6 +7,9 @@
 # Disable ethernet flow control:
 sudo ethtool -A $IFACE_RAN autoneg off rx off tx off
 sudo ethtool -A $IFACE_CN autoneg off rx off tx off
+# Disable GRO / LRO:
+sudo ethtool -K $IFACE_RAN gro off lro off
+sudo ethtool -K $IFACE_CN gro off lro off
 # Increase NIC buffers:
 sudo ethtool -G $IFACE_RAN rx 8192 tx 8192
 sudo ethtool -G $IFACE_CN rx 8192 tx 8192
diff --git a/testsuites/gtplab-sysmo2017/tunend/upf/osmo-upf/configure.sh b/testsuites/gtplab-sysmo2017/tunend/upf/osmo-upf/configure.sh
index dd48c7e..4e4389c 100755
--- a/testsuites/gtplab-sysmo2017/tunend/upf/osmo-upf/configure.sh
+++ b/testsuites/gtplab-sysmo2017/tunend/upf/osmo-upf/configure.sh
@@ -8,6 +8,9 @@
 # Disable ethernet flow control:
 sudo ethtool -A $IFACE_RAN autoneg off rx off tx off
 sudo ethtool -A $IFACE_CN autoneg off rx off tx off
+# Disable GRO / LRO:
+sudo ethtool -K $IFACE_RAN gro off lro off
+sudo ethtool -K $IFACE_CN gro off lro off
 # Increase NIC buffers:
 sudo ethtool -G $IFACE_RAN rx 8192 tx 8192
 sudo ethtool -G $IFACE_CN rx 8192 tx 8192

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