diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2-theme.css b/web/gui/src/main/webapp/app/view/topo2/topo2-theme.css
index e1551e4..7d8be0b 100644
--- a/web/gui/src/main/webapp/app/view/topo2/topo2-theme.css
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2-theme.css
@@ -56,80 +56,80 @@
     background-color: #cccccc;
 }
 
-#topo-p-detail svg {
+#topo2-p-detail svg {
     background: none;
 }
 
-#topo-p-detail .header svg .glyph {
+#topo2-p-detail .header svg .glyph {
     fill: #c0242b;
 }
 
 
 /* --- Topo Instance Panel --- */
 
-#topo-p-instance svg rect {
+#topo2-p-instance svg rect {
     stroke-width: 0;
     fill: #fbfbfb;
 }
 
 /* body of an instance */
-#topo-p-instance .online svg rect {
+#topo2-p-instance .online svg rect {
     opacity: 1;
     fill: #fbfbfb;
 }
 
-#topo-p-instance svg .glyph {
+#topo2-p-instance svg .glyph {
     fill: #fff;
 }
-#topo-p-instance .online svg .glyph {
+#topo2-p-instance .online svg .glyph {
     fill: #fff;
 }
 
 
 /* offline */
-#topo-p-instance svg .badgeIcon {
+#topo2-p-instance svg .badgeIcon {
     opacity: 0.4;
     fill: #939598;
 }
 
 /* online */
-#topo-p-instance .online svg .badgeIcon {
+#topo2-p-instance .online svg .badgeIcon {
     opacity: 1.0;
     fill: #939598;
 }
-#topo-p-instance .online svg .badgeIcon.bird {
+#topo2-p-instance .online svg .badgeIcon.bird {
     fill: #ffffff;
 }
 
-#topo-p-instance svg .readyBadge {
+#topo2-p-instance svg .readyBadge {
     visibility: hidden;
 }
-#topo-p-instance .ready svg .readyBadge {
+#topo2-p-instance .ready svg .readyBadge {
     visibility: visible;
 }
 
-#topo-p-instance svg text {
+#topo2-p-instance svg text {
     text-anchor: left;
     opacity: 0.5;
     fill: #3c3a3a;
 }
 
-#topo-p-instance .online svg text {
+#topo2-p-instance .online svg text {
     opacity: 1.0;
     fill: #3c3a3a;
 }
 
-#topo-p-instance .onosInst.mastership {
+#topo2-p-instance .onosInst.mastership {
     opacity: 0.3;
 }
-#topo-p-instance .onosInst.mastership.affinity {
+#topo2-p-instance .onosInst.mastership.affinity {
     opacity: 1.0;
 }
-#topo-p-instance .onosInst.mastership.affinity svg rect {
+#topo2-p-instance .onosInst.mastership.affinity svg rect {
     filter: url(#blue-glow);
 }
 
-.firefox #topo-p-instance .onosInst.mastership.affinity svg rect {
+.firefox #topo2-p-instance .onosInst.mastership.affinity svg rect {
     filter: url("data:image/svg+xml;utf8, <svg xmlns = \'http://www.w3.org/2000/svg\'><filter x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\" id=\"blue-glow\"><feColorMatrix type=\"matrix\" values=\"0 0 0 0  0 0 0 0 0  0 0 0 0 0  0.7 0 0 0 1  0 \"></feColorMatrix><feGaussianBlur stdDeviation=\"3\" result=\"coloredBlur\"></feGaussianBlur><feMerge><feMergeNode in=\"coloredBlur\"></feMergeNode><feMergeNode in=\"SourceGraphic\"></feMergeNode></feMerge></filter></svg>#blue-glow");
 }
 
diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2.css b/web/gui/src/main/webapp/app/view/topo2/topo2.css
index c40dd1e..02ad958 100644
--- a/web/gui/src/main/webapp/app/view/topo2/topo2.css
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2.css
@@ -63,7 +63,7 @@
     margin-right: 20px;
 }
 
-.floatpanel {
+#topo2-p-instance.floatpanel {
     top: 104px;
 }
 
@@ -72,4 +72,4 @@
 #ov-topo2 svg .node {
     cursor: pointer;
     fill-rule: evenodd;
-}
\ No newline at end of file
+}
diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2.js b/web/gui/src/main/webapp/app/view/topo2/topo2.js
index ccc50e0..839a736 100644
--- a/web/gui/src/main/webapp/app/view/topo2/topo2.js
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2.js
@@ -152,6 +152,7 @@
                 t2es.stop();
                 ks.unbindKeys();
                 t2fs.destroy();
+                t2is.destroy();
             });
 
             // svg layer and initialization of components
diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2Instance.js b/web/gui/src/main/webapp/app/view/topo2/topo2Instance.js
index b35f10c..1172662 100644
--- a/web/gui/src/main/webapp/app/view/topo2/topo2Instance.js
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2Instance.js
@@ -9,7 +9,7 @@
 
     // configuration
     var showLogicErrors = true,
-        idIns = 'topo-p-instance',
+        idIns = 'topo2-p-instance',
         instOpts = {
             edge: 'left',
             width: 20
@@ -238,6 +238,16 @@
         });
     }
 
+    function destroy() {
+        ts.removeListener(updateInstances);
+
+        ps.destroyPanel(idIns);
+        oiBox = null;
+
+        onosInstances = {};
+        onosOrder = [];
+    }
+
     angular.module('ovTopo2')
         .factory('Topo2InstanceService',
         ['$log', 'PanelService', 'SvgUtilService', 'GlyphService',
@@ -252,7 +262,8 @@
 
             return {
                 initInst: initInst,
-                allInstances: allInstances
+                allInstances: allInstances,
+                destroy: destroy
             };
         }]);