diff --git a/qosmngr/files/common/lib/qos/ebtables.sh b/qosmngr/files/common/lib/qos/ebtables.sh
index f99de85e9..d6294ae6e 100755
--- a/qosmngr/files/common/lib/qos/ebtables.sh
+++ b/qosmngr/files/common/lib/qos/ebtables.sh
@@ -389,7 +389,7 @@ handle_ebtables_rules() {
 }
 
 create_ebtables_chains() {
-    ebtables -t broute -N qos
+    ebtables -t broute -N qos 2> /dev/null
     ret=$?
     if [ $ret -eq 0 ]; then
         ebtables -t broute -I BROUTING -j qos
diff --git a/qosmngr/files/common/lib/qos/iptables.sh b/qosmngr/files/common/lib/qos/iptables.sh
index a5e42e51c..204a463fb 100755
--- a/qosmngr/files/common/lib/qos/iptables.sh
+++ b/qosmngr/files/common/lib/qos/iptables.sh
@@ -208,27 +208,27 @@ handle_iptables_rules() {
 }
 
 create_iptables_chains() {
-    iptables -w -t mangle -N qos_forward
+    iptables -w -t mangle -N qos_forward 2> /dev/null
     ret=$?
     [ $ret -eq 0 ] && iptables -w -t mangle -I FORWARD -j qos_forward
 
-    iptables -w -t mangle -N qos_prerouting
+    iptables -w -t mangle -N qos_prerouting 2> /dev/null
     ret=$?
     [ $ret -eq 0 ] && iptables -w -t mangle -I PREROUTING -j qos_prerouting
 
-    iptables -w -t mangle -N qos_output
+    iptables -w -t mangle -N qos_output 2> /dev/null
     ret=$?
     [ $ret -eq 0 ] && iptables -w -t mangle -I OUTPUT -j qos_output
 
-    ip6tables -t mangle -N qos_forward
+    ip6tables -t mangle -N qos_forward 2> /dev/null
     ret=$?
     [ $ret -eq 0 ] && ip6tables -t mangle -I FORWARD -j qos_forward
 
-    ip6tables -t mangle -N qos_prerouting
+    ip6tables -t mangle -N qos_prerouting 2> /dev/null
     ret=$?
     [ $ret -eq 0 ] && ip6tables -t mangle -I PREROUTING -j qos_prerouting
 
-    ip6tables -t mangle -N qos_output
+    ip6tables -t mangle -N qos_output 2> /dev/null
     ret=$?
     [ $ret -eq 0 ] && ip6tables -t mangle -I OUTPUT -j qos_output
 }