diff --git a/TestON/drivers/common/cli/emulator/mininetclidriver.py b/TestON/drivers/common/cli/emulator/mininetclidriver.py
index c198c4f..5a165a2 100644
--- a/TestON/drivers/common/cli/emulator/mininetclidriver.py
+++ b/TestON/drivers/common/cli/emulator/mininetclidriver.py
@@ -1985,7 +1985,7 @@
             response = main.FALSE
         return response
 
-    def arping( self, srcHost="", dstHost="10.128.20.211", ethDevice="", output=main.TRUE ):
+    def arping( self, srcHost="", dstHost="10.128.20.211", ethDevice="", output=True, noResult=False ):
         """
         Description:
             Sends arp message from mininet host for hosts discovery
@@ -1997,7 +1997,10 @@
         """
         if ethDevice:
             ethDevice = '-I ' + ethDevice + ' '
-        cmd = srcHost + " arping -c1 " + ethDevice + dstHost
+        cmd = srcHost + " arping -c1 "
+        if noResult:
+            cmd += "-w10 " # If we don't want the actural arping result, set -w10, arping will exit after 10 ms.
+        cmd += ethDevice + dstHost
         try:
             if output:
                 main.log.info( "Sending: " + cmd )
diff --git a/TestON/tests/SCPF/SCPFscaleTopo/SCPFscaleTopo.params b/TestON/tests/SCPF/SCPFscaleTopo/SCPFscaleTopo.params
index b44a3c0..90ec8bf 100755
--- a/TestON/tests/SCPF/SCPFscaleTopo/SCPFscaleTopo.params
+++ b/TestON/tests/SCPF/SCPFscaleTopo/SCPFscaleTopo.params
@@ -37,7 +37,7 @@
         <balance>10</balance>
         <nodeSleep>10</nodeSleep>
         <pingall>15</pingall>
-        <MNsleep>120</MNsleep>
+        <MNsleep>60</MNsleep>
     </SLEEP>
 
     <TIMEOUT>
diff --git a/TestON/tests/SCPF/SCPFscaleTopo/dependencies/topo.py b/TestON/tests/SCPF/SCPFscaleTopo/dependencies/topo.py
index 7a8c0c6..f1101fe 100644
--- a/TestON/tests/SCPF/SCPFscaleTopo/dependencies/topo.py
+++ b/TestON/tests/SCPF/SCPFscaleTopo/dependencies/topo.py
@@ -99,6 +99,7 @@
 
 def sendArpPackage( main, hostList ):
     import json
+    import time
     """
         send arping package from host
         return the total hosts number from Onos
@@ -107,7 +108,8 @@
     if isinstance(hostList, list):
         threads = []
         for h in hostList:
-            main.Mininet1.arping( srcHost=h, dstHost="10.0.0.1", output=main.FALSE )
+            main.Mininet1.arping( srcHost=h, dstHost="10.0.0.1", output=main.FALSE, noResult=True )
+            time.sleep(1)
     else:
         main.Mininet1.arping(srcHost=hostList)
     summaryStr = json.loads( main.CLIs[0].summary().encode() )