STC changes to make smoke test more reliable

Change-Id: I8ecf2581b12e618bf3fe41baedf5c5decdd77221
diff --git a/tools/test/scenarios/net-pingall.xml b/tools/test/scenarios/net-pingall.xml
index 8968e0d..87c1322 100644
--- a/tools/test/scenarios/net-pingall.xml
+++ b/tools/test/scenarios/net-pingall.xml
@@ -23,7 +23,7 @@
 
         <!-- TODO: take this out when initial pingall sweep is 100% -->
         <step name="Initial-Ping-All" requires="Check-Apps"
-              exec="onos-mininet sendAndExpect py net.pingAll(1) --expect 600 received"/>
+              exec="onos-mininet sendAndExpect py net.pingAll(1) --expect received"/>
 
         <step name="Ping-All-And-Verify" requires="Check-Apps,Initial-Ping-All"
               exec="onos-mininet sendAndExpect py net.pingAll(1) --expect 600/600 received"/>
@@ -34,4 +34,4 @@
         <step name="Config-Topo" requires="~Check-Summary-For-Hosts"
               exec="onos-topo-cfg ${OC1} ${ONOS_ROOT}/tools/test/topos/attmpls.json"/>
     </group>
-</scenario>
\ No newline at end of file
+</scenario>