diff --git a/ui/scripts/system.js b/ui/scripts/system.js
index bf726b7dbc0..77285aa090f 100644
--- a/ui/scripts/system.js
+++ b/ui/scripts/system.js
@@ -1063,7 +1063,7 @@
 															if(physicalNetworkObjs.length > 1) { //multiple physical networks
 															  var guestTrafficTypeTotal = 0;
 															  for(var i = 0; i < physicalNetworkObjs.length; i++) {																  
-																  if(guestTrafficTypeTotal > 1)
+																  if(guestTrafficTypeTotal > 1) //as long as guestTrafficTypeTotal > 1, break for loop, don't need to continue to count. It doesn't matter whether guestTrafficTypeTotal is 2 or 3 or 4 or 5 or more. We only care whether guestTrafficTypeTotal is greater than 1.
 																	  break; 																	
 																  $.ajax({
 																	  url: createURL("listTrafficTypes&physicalnetworkid=" + physicalNetworkObjs[i].id),
diff --git a/ui/scripts/ui-custom/zoneChart.js b/ui/scripts/ui-custom/zoneChart.js
index c6c331f30a6..70e0da1f3c9 100644
--- a/ui/scripts/ui-custom/zoneChart.js
+++ b/ui/scripts/ui-custom/zoneChart.js
@@ -216,6 +216,7 @@
                   'providers': {
                     label: 'Network Service Providers',
                     ignoreChart: true,
+										dependsOn: 'guest',
                     configure: {
                       action: actions.providerListView(targetContext)
                     }
@@ -227,8 +228,18 @@
                 });
 
                 // Make traffic type elems
-                $.each(trafficTypes, function(id, trafficType) {
-                  if ($.inArray(id, validTrafficTypes) == -1 && !trafficType.ignoreChart) return true;
+                $.each(trafficTypes, function(id, trafficType) {                					
+                  if ($.inArray(id, validTrafficTypes) == -1) { //if it is not a valid traffic type									 
+										if(trafficType.dependsOn != null && trafficType.dependsOn.length > 0) { //if it has dependsOn 
+										  if($.inArray(trafficType.dependsOn, validTrafficTypes) == -1) { //if its dependsOn is not a valid traffic type, either
+											  return true; //skip this item
+											}		
+                      //else, if its dependsOn is a valid traffic type, continue to Make list item	(e.g. providers.dependsOn is 'guest')									
+										}
+										else {
+									    return true; //if it doesn't have dependsOn, skip this item
+										}
+									}
 
                   // Make list item
                   var $li = $('<li>').addClass(id);
@@ -244,7 +255,8 @@
                   $li.appendTo($trafficTypes);
 
                   // Make chart
-                  if (trafficType.ignoreChart) return true;
+                  if (trafficType.ignoreChart) 
+									  return true;
 
                   var $targetChartItem = $('<div>').addClass('network-chart-item').addClass(id);
                   $targetChartItem.appendTo($networkChart);