diff --git a/xCAT/postscripts/confignetwork b/xCAT/postscripts/confignetwork
index b5d20c15b..645de5d95 100755
--- a/xCAT/postscripts/confignetwork
+++ b/xCAT/postscripts/confignetwork
@@ -406,12 +406,12 @@ function sort_nics_device_order {
                     vlan_slot=$vlan_slot" "$num
                 fi
             else
-                echo "Error: $nic_dev $base_nic_dev pair is invalid nic and nicdevice pair."
+                echo "Error: nicdevices.$nic_dev base nic device cannot be $base_nic_type $base_nic_dev.(nicdevices is only required on vlan/bond/bridge)"
             fi
             ((num+=1))
         done
       else
-        log_error "Error: only support configure bond/vlan/bridge on redhat."
+        log_error "only support configure bond/vlan/bridge on redhat."
       fi
     fi
     new_order=$eth_slot" "$bond_slot" "$vlan_slot
@@ -555,7 +555,7 @@ function configure_nicdevice {
                 errorcode=1
             fi
         else
-            log_error "Error : please check nic data in nics table."
+            log_error "please check nic data in nics table."
             errorcode=1
         fi 
 
diff --git a/xCAT/postscripts/nicutils.sh b/xCAT/postscripts/nicutils.sh
index d00155256..d57598512 100755
--- a/xCAT/postscripts/nicutils.sh
+++ b/xCAT/postscripts/nicutils.sh
@@ -76,7 +76,7 @@ function log_lines {
 ######################################################
 function log_error {
     local __msg="$*"
-    $log_print_cmd $log_print_arg "[E]: $__msg" 
+    $log_print_cmd $log_print_arg "[E]:Error: $__msg" 
     return 0
 }
 
@@ -1473,7 +1473,7 @@ function create_bond_interface {
     wait_for_ifstate $ifname UP 200 1
     rc=$?
     if [ $rc -ne 0 ]; then
-        log_error "Error! Interface \"$ifname\" was NOT in \"UP\" state eventually."
+        log_error "Interface \"$ifname\" was NOT in \"UP\" state eventually."
         $ip link show $ifname \
         | $sed -e 's/^/['$ifname' ip out >> /g' \
         | log_lines info