Erasing passwords from topo files
diff --git a/TestON/tests/OnosPerf4nodes/OnosPerf4nodes.topo b/TestON/tests/OnosPerf4nodes/OnosPerf4nodes.topo
index 5f35b09..40a22b3 100644
--- a/TestON/tests/OnosPerf4nodes/OnosPerf4nodes.topo
+++ b/TestON/tests/OnosPerf4nodes/OnosPerf4nodes.topo
@@ -3,7 +3,7 @@
         <Zookeeper1>
             <host>10.128.100.1</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>ZookeeperCliDriver</type>
             <connect_order>1</connect_order>
         </Zookeeper1>
@@ -11,28 +11,28 @@
         <Cassandra1>
             <host>10.128.100.1</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>CassandraCliDriver</type>
             <connect_order>2</connect_order>
         </Cassandra1>
         <Cassandra2>
             <host>10.128.100.4</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>CassandraCliDriver</type>
             <connect_order>3</connect_order>
         </Cassandra2>
         <Cassandra3>
             <host>10.128.100.5</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>CassandraCliDriver</type>
             <connect_order>4</connect_order>
         </Cassandra3>
         <Cassandra4>
             <host>10.128.100.6</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>CassandraCliDriver</type>
             <connect_order>5</connect_order>
         </Cassandra4>
@@ -40,28 +40,28 @@
         <ONOS1>
             <host>10.128.100.1</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>OnosCliDriver</type>
             <connect_order>6</connect_order>
         </ONOS1>
         <ONOS2>
             <host>10.128.100.4</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>OnosCliDriver</type>
             <connect_order>7</connect_order>
         </ONOS2>
         <ONOS3>
             <host>10.128.100.5</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>OnosCliDriver</type>
             <connect_order>8</connect_order>
         </ONOS3>
         <ONOS4>
             <host>10.128.100.6</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>OnosCliDriver</type>
             <connect_order>9</connect_order>
         </ONOS4>
@@ -69,7 +69,7 @@
         <Mininet1>
             <host>10.128.100.4</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>MininetCliDriver</type>
             <connect_order>10</connect_order>
             <COMPONENTS>
@@ -83,14 +83,14 @@
         <Mininet4>
             <host>10.128.100.4</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>RemoteMininetDriver</type>
             <connect_order>11</connect_order>
         </Mininet4>
         <Mininet8>
             <host>10.128.100.4</host>
             <user>admin</user>
-            <password>onos_test</password>
+            <password></password>
             <type>RemoteMininetDriver</type>
             <connect_order>12</connect_order>
         </Mininet8>