diff --git a/tools/multi_nodes_gate/airship_gate/lib/config.sh b/tools/multi_nodes_gate/airship_gate/lib/config.sh
index 6b7a41a9..b2b0b699 100644
--- a/tools/multi_nodes_gate/airship_gate/lib/config.sh
+++ b/tools/multi_nodes_gate/airship_gate/lib/config.sh
@@ -134,3 +134,9 @@ join_array() {
   shift
   echo "$*"
 }
+
+besteffort() {
+  set +e
+  $@
+  set -e
+}
diff --git a/tools/multi_nodes_gate/setup_gate.sh b/tools/multi_nodes_gate/setup_gate.sh
index c176f874..150afbac 100755
--- a/tools/multi_nodes_gate/setup_gate.sh
+++ b/tools/multi_nodes_gate/setup_gate.sh
@@ -100,7 +100,7 @@ net.bridge.bridge-nf-call-ip6tables = 0
 net.bridge.bridge-nf-call-iptables = 0
 net.bridge.bridge-nf-call-arptables = 0
 EOF
-sudo sysctl -p /etc/sysctl.d/60-bridge.conf
+besteffort sudo sysctl -p /etc/sysctl.d/60-bridge.conf
 
 if [[ ${REQUIRE_RELOG} -eq 1 ]]; then
     echo