diff --git a/xCAT-test/autotest/testcase/confignics/cases0 b/xCAT-test/autotest/testcase/confignics/cases0
index 1238039d8..ece7d81e5 100644
--- a/xCAT-test/autotest/testcase/confignics/cases0
+++ b/xCAT-test/autotest/testcase/confignics/cases0
@@ -1,5 +1,7 @@
 start:confignics_config_one_port_single_value
 description:confignics 
+cmd:lsdef $$CN;if [ $? -eq 0 ]; then lsdef -l $$CN -z >/tmp/CN.standa ;fi
+check:rc==0
 cmd:mkdef -t network -o 100_1_0_0-255_255_0_0 net=100.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC mtu=1501
 check:rc==0
 cmd:chdef $$CN nicips.$$SECONDNIC=100.1.0.100 nictypes.$$SECONDNIC=Ethernet nicnetworks.$$SECONDNIC=100_1_0_0-255_255_0_0
@@ -11,10 +13,14 @@ check:output=~100.1.0.100
 check:output=~MTU=1501
 cmd:rmdef -t network -o 100_1_0_0-255_255_0_0
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf /etc/network/interfaces.d/$$SECONDNIC; else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$SECONDNIC; fi 
+cmd:if [ -e /tmp/CN.standa ]; then rmdef $$CN; cat /tmp/CN.standa | mkdef -z; rm -rf /tmp/CN.standa; fi
+check:rc==0
 end
 
 start:confignics_config_multiple_ports_single_value
 description:confignics
+cmd:lsdef $$CN;if [ $? -eq 0 ]; then lsdef -l $$CN -z >/tmp/CN.standa ;fi
+check:rc==0
 cmd:mkdef -t network -o 100_1_0_0-255_255_0_0 net=100.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC mtu=1501
 check:rc==0
 cmd:mkdef -t network -o 200_1_0_0-255_255_0_0 net=200.1.0.0 mask=255.255.0.0 mgtifname=$$THIRDNIC  mtu=1502
@@ -37,10 +43,14 @@ cmd:rmdef -t network -o 100_1_0_0-255_255_0_0
 cmd:rmdef -t network -o 200_1_0_0-255_255_0_0
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf  /etc/network/interfaces.d/$$SECONDNIC; else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$SECONDNIC; fi
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf  /etc/network/interfaces.d/$$THIRDNIC; else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$THIRDNIC; fi
+cmd:if [ -e /tmp/CN.standa ]; then rmdef $$CN; cat /tmp/CN.standa | mkdef -z; rm -rf /tmp/CN.standa; fi
+check:rc==0
 end
 
 start:confignics_config_multiple_ports_multiple_value
 description:confignics
+cmd:lsdef $$CN;if [ $? -eq 0 ]; then lsdef -l $$CN -z >/tmp/CN.standa ;fi
+check:rc==0
 cmd:mkdef -t network -o 11_1_0_0-255_255_0_0 net=11.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC  mtu=1501
 check:rc==0
 cmd:mkdef -t network -o 12_1_0_0-255_255_0_0 net=12.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC  mtu=1502
@@ -62,7 +72,7 @@ check:output=~MTU=1501
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN cat /etc/network/interfaces.d/$$SECONDNIC:1 ; elif [ "$$OS" = "rhels" ]; then xdsh $$CN cat /etc/sysconfig/network*/ifcfg-$$SECONDNIC:1;else xdsh $$CN cat /etc/sysconfig/network*/ifcfg-$$SECONDNIC; fi  
 check:output=~12.1.0.100
 check:output!~dhcp
-check:output=~MTU_1=1502
+check:output=~MTU=1502
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN cat /etc/network/interfaces.d/$$THIRDNIC; else xdsh $$CN cat /etc/sysconfig/network*/ifcfg-$$THIRDNIC; fi
 check:output=~13.1.0.100
 check:output!~dhcp
@@ -70,7 +80,7 @@ check:output=~MTU=1503
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN cat /etc/network/interfaces.d/$$THIRDNIC:1 ; elif [ "$$OS" = "rhels" ]; then xdsh $$CN cat /etc/sysconfig/network*/ifcfg-$$THIRDNIC:1;else xdsh $$CN cat /etc/sysconfig/network*/ifcfg-$$THIRDNIC; fi
 check:output=~14.1.0.100
 check:output!~dhcp
-check:output=~MTU_1=1504
+check:output=~MTU=1504
 cmd:rmdef -t network -o 11_1_0_0-255_255_0_0
 cmd:rmdef -t network -o 12_1_0_0-255_255_0_0
 cmd:rmdef -t network -o 13_1_0_0-255_255_0_0
@@ -79,10 +89,14 @@ cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf  /etc/network/interfaces.d/$$
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf  /etc/network/interfaces.d/$$SECONDNIC:1; else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$SECONDNIC:1; fi
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf  /etc/network/interfaces.d/$$THIRDNIC; else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$THIRDNIC; fi
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf  /etc/network/interfaces.d/$$THIRDNIC:1;  else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$THIRDNIC:1; fi
+cmd:if [ -e /tmp/CN.standa ]; then rmdef $$CN; cat /tmp/CN.standa | mkdef -z; rm -rf /tmp/CN.standa; fi
+check:rc==0
 end
 
 start:confignics_config_multiple_port_withnichostnamesuffixes_multiple_value
 description:confignics
+cmd:lsdef $$CN;if [ $? -eq 0 ]; then lsdef -l $$CN -z >/tmp/CN.standa ;fi
+check:rc==0
 cmd:mkdef -t network -o 11_1_0_0-255_255_0_0 net=11.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC  mtu=1501
 check:rc==0
 cmd:mkdef -t network -o 12_1_0_0-255_255_0_0 net=12.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC  mtu=1502
@@ -131,10 +145,14 @@ cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf /etc/network/interfaces.d/$$S
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf /etc/network/interfaces.d/$$THIRDNIC; else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$THIRDNIC; fi
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf /etc/network/interfaces.d/$$THIRDNIC:1; else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$THIRDNIC:1; fi 
 cmd:cp /etc/hosts.backup /etc/hosts
+cmd:if [ -e /tmp/CN.standa ]; then rmdef $$CN; cat /tmp/CN.standa | mkdef -z; rm -rf /tmp/CN.standa; fi
+check:rc==0
 end
 
 start:confignics_config_multiple_port_withnicaliases_multiple_value
 description:confignics
+cmd:lsdef $$CN;if [ $? -eq 0 ]; then lsdef -l $$CN -z >/tmp/CN.standa ;fi
+check:rc==0
 cmd:mkdef -t network -o 11_1_0_0-255_255_0_0 net=11.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC  mtu=1501
 check:rc==0
 cmd:mkdef -t network -o 12_1_0_0-255_255_0_0 net=12.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC   mtu=1502
@@ -180,10 +198,14 @@ cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf /etc/network/interfaces.d/$$S
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf /etc/network/interfaces.d/$$SECONDNIC:1; else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$SECONDNIC:1; fi
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf /etc/network/interfaces.d/$$THIRDNIC; else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$THIRDNIC; fi
 cmd:if [ "$$OS" = "ubuntu" ];then xdsh $$CN rm -rf /etc/network/interfaces.d/$$THIRDNIC:1;  else xdsh $$CN rm -rf /etc/sysconfig/network*/ifcfg-$$THIRDNIC:1; fi
+cmd:if [ -e /tmp/CN.standa ]; then rmdef $$CN; cat /tmp/CN.standa | mkdef -z; rm -rf /tmp/CN.standa; fi
+check:rc==0
 end
 
 start:confignics_disable_set_to_yes
 description:confignics
+cmd:lsdef $$CN;if [ $? -eq 0 ]; then lsdef -l $$CN -z >/tmp/CN.standa ;fi
+check:rc==0
 cmd:xdsh $$CN ifdown $$SECONDNIC
 cmd:mkdef -t network -o 100_1_0_0-255_255_0_0 net=100.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC
 check:rc==0
@@ -198,10 +220,14 @@ check:output!~100.1.0.100
 output=~MTU=1501
 cmd:rmdef -t network -o 100_1_0_0-255_255_0_0
 cmd:chtab node=$$CN nics.disable=0
+cmd:if [ -e /tmp/CN.standa ]; then rmdef $$CN; cat /tmp/CN.standa | mkdef -z; rm -rf /tmp/CN.standa; fi
+check:rc==0
 end
 
 start:confignics_disable_set_to_1
 description:confignics
+cmd:lsdef $$CN;if [ $? -eq 0 ]; then lsdef -l $$CN -z >/tmp/CN.standa ;fi
+check:rc==0
 cmd:xdsh $$CN ifdown $$SECONDNIC
 cmd:mkdef -t network -o 100_1_0_0-255_255_0_0 net=100.1.0.0 mask=255.255.0.0 mgtifname=$$SECONDNIC  mtu=1501
 check:rc==0
@@ -216,7 +242,10 @@ check:output!~100.1.0.100
 output=~MTU=1501
 cmd:rmdef -t network -o 100_1_0_0-255_255_0_0
 cmd:chtab node=$$CN nics.disable=0
+cmd:if [ -e /tmp/CN.standa ]; then rmdef $$CN; cat /tmp/CN.standa | mkdef -z; rm -rf /tmp/CN.standa; fi
+check:rc==0
 end
+
 start:confignics_s
 description:confignics_s
 cmd:/opt/xcat/share/xcat/tools/autotest/testcase/confignics/mtu_set_clean S 1501
@@ -226,7 +255,7 @@ check:rc==0
 cmd:updatenode $$CN  "confignics -s"
 check:rc==0
 check:output!~invalid
-cmd:if  cat /etc/*release |grep "Red Hat" >/dev/null ;then if [[ `xdsh $$CN  cat /etc/sysconfig/network-scripts/ifcfg-eth0 ` =~ "IPADDR=$$NODEIP" ]] && [[ `xdsh $$CN  cat /etc/sysconfig/network-scripts/ifcfg-eth0 ` =~ "MTU=1501" ]] ; then exit 0 ;else exit 1 ; fi ;elif  cat /etc/*release |grep SUSE >/dev/null ; then if [[ `xdsh $$CN cat /etc/sysconfig/network/ifcfg-eth0 ` =~ "IPADDR=$$NODEIP" ]] && [[ `xdsh $$CN cat /etc/sysconfig/network/ifcfg-eth0 ` =~ "MTU=1501" ]] ;then exit 0;else exit 1;fi;fi
+cmd:if  cat /etc/*release |grep "Red Hat" >/dev/null ;then if [[ `xdsh $$CN  cat /etc/sysconfig/network-scripts/ifcfg-* ` =~ "IPADDR=$$NODEIP" ]] && [[ `xdsh $$CN  cat /etc/sysconfig/network-scripts/ifcfg-* ` =~ "MTU=1501" ]] ; then exit 0 ;else exit 1 ; fi ;elif  cat /etc/*release |grep SUSE >/dev/null ; then if [[ `xdsh $$CN cat /etc/sysconfig/network/ifcfg-* ` =~ "IPADDR=$$NODEIP" ]] && [[ `xdsh $$CN cat /etc/sysconfig/network/ifcfg-* ` =~ "MTU=1501" ]] ;then exit 0;else exit 1;fi;fi
 check:rc==0
 cmd:/opt/xcat/share/xcat/tools/autotest/testcase/confignics/mtu_set_clean C 1501
 check:rc==0