diff --git a/TestON/tests/HA/HAkillNodes/HAkillNodes.params b/TestON/tests/HA/HAkillNodes/HAkillNodes.params
index 6e9587c..deb9670 100644
--- a/TestON/tests/HA/HAkillNodes/HAkillNodes.params
+++ b/TestON/tests/HA/HAkillNodes/HAkillNodes.params
@@ -1,25 +1,26 @@
 <PARAMS>
     #List of test cases:
-    #CASE1: Compile ONOS and push it to the test machines
-    #CASE2: Assign devices to controllers
-    #CASE21: Assign mastership to controllers
-    #CASE3: Assign intents
-    #CASE4: Ping across added host intents
-    #CASE5: Reading state of ONOS
-    #CASE61: The Failure inducing case.
-    #CASE62: The Failure recovery case.
-    #CASE7: Check state after control plane failure
-    #CASE8: Compare topo
-    #CASE9: Link s3-s28 down
-    #CASE10: Link s3-s28 up
-    #CASE11: Switch down
-    #CASE12: Switch up
-    #CASE13: Clean up
-    #CASE14: start election app on all onos nodes
-    #CASE15: Check that Leadership Election is still functional
-    #CASE16: Install Distributed Primitives app
-    #CASE17: Check for basic functionality with distributed primitives
-    <testcases>1,2,8,21,3,4,5,14,16,17,[61,8,7,4,15,17,62],8,7,4,15,17,9,8,4,10,8,4,11,8,4,12,8,4,13</testcases>
+    #CASE1:   Compile ONOS and push it to the test machines
+    #CASE2:   Assign mastership to controllers
+    #CASE21:  Assign mastership to controllers
+    #CASE102: Start Spine-Leaf Topology in Mininet
+    #CASE3:   Assign intents
+    #CASE4:   Ping across added host intents
+    #CASE104: Ping between all hosts
+    #CASE5:   Reading state of ONOS
+    #CASE6:   The Failure case.
+    #CASE7:   Check state after control plane failure
+    #CASE8:   Compare topo
+    #CASE9:   Link down
+    #CASE10:  Link up
+    #CASE11:  Switch down
+    #CASE12:  Switch up
+    #CASE13:  Clean up
+    #CASE14:  Start election app on all onos nodes
+    #CASE15:  Check that Leadership Election is still functional
+    #CASE16:  Install Distributed Primitives app
+    #CASE17:  Check for basic functionality with distributed primitives
+    <testcases>1,2,8,21,3,4,5,14,15,16,17,[61,8,7,4,15,17,62],8,7,4,15,17,9,8,4,10,8,4,11,8,4,12,8,4,13</testcases>
 
     <GRAPH>
         <nodeCluster>VM</nodeCluster>
@@ -31,10 +32,16 @@
         <org.onosproject.net.intent.impl.compiler.IntentConfigurableRegistrator>
             <useFlowObjectives>false</useFlowObjectives>
         </org.onosproject.net.intent.impl.compiler.IntentConfigurableRegistrator>
+        <org.onosproject.store.flow.impl.ECFlowRuleStore>
+            <backupCount>3</backupCount>
+        </org.onosproject.store.flow.impl.ECFlowRuleStore>
     </ONOS_Configuration>
+    <ONOS_Logging>
+        <org.onosproject.events>TRACE</org.onosproject.events>
+    </ONOS_Logging>
     <ENV>
         <cellName>HA</cellName>
-        <appString>drivers,openflow,proxyarp,mobility,events</appString>
+        <appString>events,drivers,openflow,proxyarp,mobility</appString>
     </ENV>
     <GIT>
         <pull>False</pull>
@@ -85,6 +92,8 @@
         <gossip>5</gossip>
     </timers>
     <kill>
+        <linkSrc> s28 </linkSrc>
+        <linkDst> s3 </linkDst>
         <switch> s5 </switch>
         <dpid> 0000000000005000 </dpid>
         <links> h5 s2 s1 s6 </links>
diff --git a/TestON/tests/HA/HAkillNodes/HAkillNodes.params.fabric b/TestON/tests/HA/HAkillNodes/HAkillNodes.params.fabric
new file mode 100644
index 0000000..dbfbde3
--- /dev/null
+++ b/TestON/tests/HA/HAkillNodes/HAkillNodes.params.fabric
@@ -0,0 +1,98 @@
+<PARAMS>
+    #List of test cases:
+    #CASE1:   Compile ONOS and push it to the test machines
+    #CASE2:   Assign mastership to controllers
+    #CASE21:  Assign mastership to controllers
+    #CASE102: Start Spine-Leaf Topology in Mininet
+    #CASE3:   Assign intents
+    #CASE4:   Ping across added host intents
+    #CASE104: Ping between all hosts
+    #CASE5:   Reading state of ONOS
+    #CASE6:   The Failure case.
+    #CASE7:   Check state after control plane failure
+    #CASE8:   Compare topo
+    #CASE9:   Link down
+    #CASE10:  Link up
+    #CASE11:  Switch down
+    #CASE12:  Switch up
+    #CASE13:  Clean up
+    #CASE14:  Start election app on all onos nodes
+    #CASE15:  Check that Leadership Election is still functional
+    #CASE16:  Install Distributed Primitives app
+    #CASE17:  Check for basic functionality with distributed primitives
+    <testcases>1,102,8,104,5,14,15,16,17,[61,8,7,104,15,17,62],8,7,8,104,15,17,9,8,104,10,8,104,[11,8,104,12,8,104]*0,13</testcases>
+
+    <GRAPH>
+        <nodeCluster>VM</nodeCluster>
+        <builds>20</builds>
+    </GRAPH>
+
+    <apps></apps>
+    <ONOS_Configuration>
+        <org.onosproject.store.flow.impl.ECFlowRuleStore>
+            <backupCount>3</backupCount>
+        </org.onosproject.store.flow.impl.ECFlowRuleStore>
+    </ONOS_Configuration>
+    <ONOS_Logging>
+        <org.onosproject.events>TRACE</org.onosproject.events>
+        <org.onosproject.segmentrouting>DEBUG</org.onosproject.segmentrouting>
+        <org.onosproject.driver.pipeline>DEBUG</org.onosproject.driver.pipeline>
+        <org.onosproject.store.group.impl>DEBUG</org.onosproject.store.group.impl>
+        <org.onosproject.net.flowobjective.impl>DEBUG</org.onosproject.net.flowobjective.impl>
+    </ONOS_Logging>
+    <ENV>
+        <cellName>HA</cellName>
+        <appString>events,drivers,openflow,segmentrouting,netcfghostprovider</appString>
+    </ENV>
+    <GIT>
+        <pull>False</pull>
+        <branch>master</branch>
+    </GIT>
+    <num_controllers> 7 </num_controllers>
+    <tcpdump> False </tcpdump>
+
+    <topology>
+        <files>
+            <topo>~/TestON/tests/USECASE/SegmentRouting/dependencies/comcast_fabric.py</topo>
+            <dep1>~/TestON/tests/USECASE/SegmentRouting/dependencies/trellislib.py</dep1>
+            <dep2>~/TestON/tests/USECASE/SegmentRouting/dependencies/routinglib.py</dep2>
+        </files>
+        <topoFile>comcast_fabric.py</topoFile>
+        <args> --dhcp=0 --routers=0 --ipv6=0 --ipv4=1 </args>
+        <configPath>/USECASE/SegmentRouting/SRRouting/dependencies/json/</configPath>
+        <configName>COMCAST_CONFIG_ipv4=1_ipv6=0_dhcp=0_routers=0.json</configName>
+    </topology>
+    <CTRL>
+        <port1>6653</port1>
+        <port2>6653</port2>
+        <port3>6653</port3>
+        <port4>6653</port4>
+        <port5>6653</port5>
+        <port6>6653</port6>
+        <port7>6653</port7>
+    </CTRL>
+    <BACKUP>
+        <ENABLED> False </ENABLED>
+        <TESTONUSER>sdn</TESTONUSER>
+        <TESTONIP>10.128.30.9</TESTONIP>
+    </BACKUP>
+    <timers>
+        <NetCfg>5</NetCfg>
+        <SRSetup>60</SRSetup>
+        <LinkDiscovery>60</LinkDiscovery>
+        <SwitchDiscovery>60</SwitchDiscovery>
+        <gossip>5</gossip>
+    </timers>
+    <kill>
+        <linkSrc>spine102</linkSrc>
+        <linkDst>leaf1</linkDst>
+        <switch> spine101 </switch>
+        <dpid> 0000000000000101 </dpid>
+        <links> leaf1 leaf2 leaf2 leaf3 leaf3 leaf4 leaf4 leaf5 leaf5 </links>
+    </kill>
+    <MNtcpdump>
+        <intf>eth0</intf>
+        <port> </port>
+        <folder>~/packet_captures/</folder>
+    </MNtcpdump>
+</PARAMS>
diff --git a/TestON/tests/HA/HAkillNodes/HAkillNodes.params.intents b/TestON/tests/HA/HAkillNodes/HAkillNodes.params.intents
new file mode 100644
index 0000000..2f8d6aa
--- /dev/null
+++ b/TestON/tests/HA/HAkillNodes/HAkillNodes.params.intents
@@ -0,0 +1,107 @@
+<PARAMS>
+    #List of test cases:
+    #CASE1:   Compile ONOS and push it to the test machines
+    #CASE2:   Assign mastership to controllers
+    #CASE21:  Assign mastership to controllers
+    #CASE102: Start Spine-Leaf Topology in Mininet
+    #CASE3:   Assign intents
+    #CASE4:   Ping across added host intents
+    #CASE104: Ping between all hosts
+    #CASE5:   Reading state of ONOS
+    #CASE6:   The Failure case.
+    #CASE7:   Check state after control plane failure
+    #CASE8:   Compare topo
+    #CASE9:   Link down
+    #CASE10:  Link up
+    #CASE11:  Switch down
+    #CASE12:  Switch up
+    #CASE13:  Clean up
+    #CASE14:  Start election app on all onos nodes
+    #CASE15:  Check that Leadership Election is still functional
+    #CASE16:  Install Distributed Primitives app
+    #CASE17:  Check for basic functionality with distributed primitives
+    <testcases>1,2,8,21,3,4,5,14,15,16,17,[61,8,7,4,15,17,62],8,7,4,15,17,9,8,4,10,8,4,11,8,4,12,8,4,13</testcases>
+
+    <GRAPH>
+        <nodeCluster>VM</nodeCluster>
+        <builds>20</builds>
+    </GRAPH>
+
+    <apps></apps>
+    <ONOS_Configuration>
+        <org.onosproject.net.intent.impl.compiler.IntentConfigurableRegistrator>
+            <useFlowObjectives>false</useFlowObjectives>
+            <defaultFlowObjectiveCompiler>org.onosproject.net.intent.impl.compiler.LinkCollectionIntentObjectiveCompiler</defaultFlowObjectiveCompiler>
+        </org.onosproject.net.intent.impl.compiler.IntentConfigurableRegistrator>
+        <org.onosproject.store.flow.impl.ECFlowRuleStore>
+            <backupCount>3</backupCount>
+        </org.onosproject.store.flow.impl.ECFlowRuleStore>
+    </ONOS_Configuration>
+    <ONOS_Logging>
+        <org.onosproject.events>TRACE</org.onosproject.events>
+    </ONOS_Logging>
+    <ENV>
+        <cellName>HA</cellName>
+        <appString>events,drivers,openflow,proxyarp,mobility</appString>
+    </ENV>
+    <GIT>
+        <pull>False</pull>
+        <branch>master</branch>
+    </GIT>
+    <num_controllers> 7 </num_controllers>
+    <tcpdump> False </tcpdump>
+
+    <CTRL>
+        <port1>6653</port1>
+        <port2>6653</port2>
+        <port3>6653</port3>
+        <port4>6653</port4>
+        <port5>6653</port5>
+        <port6>6653</port6>
+        <port7>6653</port7>
+    </CTRL>
+    <BACKUP>
+        <ENABLED> False </ENABLED>
+        <TESTONUSER>sdn</TESTONUSER>
+        <TESTONIP>10.128.30.9</TESTONIP>
+    </BACKUP>
+    <PING>
+        <source1>h8</source1>
+        <source2>h9</source2>
+        <source3>h10</source3>
+        <source4>h11</source4>
+        <source5>h12</source5>
+        <source6>h13</source6>
+        <source7>h14</source7>
+        <source8>h15</source8>
+        <source9>h16</source9>
+        <source10>h17</source10>
+        <target1>10.0.0.18</target1>
+        <target2>10.0.0.19</target2>
+        <target3>10.0.0.20</target3>
+        <target4>10.0.0.21</target4>
+        <target5>10.0.0.22</target5>
+        <target6>10.0.0.23</target6>
+        <target7>10.0.0.24</target7>
+        <target8>10.0.0.25</target8>
+        <target9>10.0.0.26</target9>
+        <target10>10.0.0.27</target10>
+    </PING>
+    <timers>
+        <LinkDiscovery>12</LinkDiscovery>
+        <SwitchDiscovery>12</SwitchDiscovery>
+        <gossip>5</gossip>
+    </timers>
+    <kill>
+        <linkSrc> s28 </linkSrc>
+        <linkDst> s3 </linkDst>
+        <switch> s5 </switch>
+        <dpid> 0000000000005000 </dpid>
+        <links> h5 s2 s1 s6 </links>
+    </kill>
+    <MNtcpdump>
+        <intf>eth0</intf>
+        <port> </port>
+        <folder>~/packet_captures/</folder>
+    </MNtcpdump>
+</PARAMS>
diff --git a/TestON/tests/HA/HAkillNodes/HAkillNodes.py b/TestON/tests/HA/HAkillNodes/HAkillNodes.py
index 5676d3c..44a4b71 100644
--- a/TestON/tests/HA/HAkillNodes/HAkillNodes.py
+++ b/TestON/tests/HA/HAkillNodes/HAkillNodes.py
@@ -83,26 +83,58 @@
             main.HA = HA()
             cellName = main.params[ 'ENV' ][ 'cellName' ]
             main.apps = main.params[ 'ENV' ][ 'appString' ]
-            stepResult = main.testSetUp.envSetup()
+            stepResult = main.testSetUp.envSetup( includeCaseDesc=False )
         except Exception as e:
             main.testSetUp.envSetupException( e )
         main.testSetUp.evnSetupConclusion( stepResult )
 
-        main.testSetUp.ONOSSetUp( main.Cluster, cellName=cellName, removeLog=True,
-                                  extraApply=[ main.HA.startingMininet,
-                                               main.HA.customizeOnosGenPartitions,
-                                               main.HA.copyBackupConfig,
-                                               main.ONOSbench.preventAutoRespawn ],
-                                  extraClean=main.HA.cleanUpGenPartition )
+        applyFuncs = [ main.HA.customizeOnosGenPartitions,
+                       main.HA.copyBackupConfig,
+                       main.ONOSbench.preventAutoRespawn ]
+        applyArgs = [ None, None, None ]
+        try:
+            if main.params[ 'topology' ][ 'topoFile' ]:
+                main.log.info( 'Skipping start of Mininet in this case, make sure you start it elsewhere' )
+            else:
+                applyFuncs.append( main.HA.startingMininet )
+                applyArgs.append( None )
+        except (KeyError, IndexError):
+                applyFuncs.append( main.HA.startingMininet )
+                applyArgs.append( None )
 
+        main.testSetUp.ONOSSetUp( main.Cluster, cellName=cellName, removeLog=True,
+                                  extraApply=applyFuncs,
+                                  applyArgs=applyArgs,
+                                  extraClean=main.HA.cleanUpGenPartition,
+                                  includeCaseDesc=False )
         main.HA.initialSetUp( serviceClean=True )
 
+        main.step( 'Set logging levels' )
+        logging = True
+        try:
+            logs = main.params.get( 'ONOS_Logging', False )
+            if logs:
+                for namespace, level in logs.items():
+                    for ctrl in main.Cluster.active():
+                        ctrl.CLI.logSet( level, namespace )
+        except AttributeError:
+            logging = False
+        utilities.assert_equals( expect=True, actual=logging,
+                                 onpass="Set log levels",
+                                 onfail="Failed to set log levels" )
+
     def CASE2( self, main ):
         """
         Assign devices to controllers
         """
         main.HA.assignDevices( main )
 
+    def CASE102( self, main ):
+        """
+        Set up Spine-Leaf fabric topology in Mininet
+        """
+        main.HA.startTopology( main )
+
     def CASE21( self, main ):
         """
         Assign mastership to controllers
@@ -121,6 +153,17 @@
         """
         main.HA.pingAcrossHostIntent( main )
 
+    def CASE104( self, main ):
+        """
+        Ping Hosts
+        """
+        main.case( "Check connectivity" )
+        main.step( "Ping between all hosts" )
+        pingResult = main.Mininet1.pingall()
+        utilities.assert_equals( expect=main.TRUE, actual=pingResult,
+                                 onpass="All Pings Passed",
+                                 onfail="Failed to ping between all hosts" )
+
     def CASE5( self, main ):
         """
         Reading state of ONOS
@@ -225,7 +268,7 @@
             leaderResult = main.FALSE
             main.log.error(
                 "Inconsistent view of leader for the election test app" )
-            # TODO: print the list
+            main.log.debug( leaderList )
         utilities.assert_equals(
             expect=main.TRUE,
             actual=leaderResult,
@@ -240,15 +283,19 @@
 
     def CASE9( self, main ):
         """
-        Link s3-s28 down
+        Link down
         """
-        main.HA.linkDown( main )
+        src = main.params['kill']['linkSrc']
+        dst = main.params['kill']['linkDst']
+        main.HA.linkDown( main, src, dst )
 
     def CASE10( self, main ):
         """
-        Link s3-s28 up
+        Link up
         """
-        main.HA.linkUp( main )
+        src = main.params['kill']['linkSrc']
+        dst = main.params['kill']['linkDst']
+        main.HA.linkUp( main, src, dst )
 
     def CASE11( self, main ):
         """
@@ -268,13 +315,11 @@
         """
         Clean up
         """
-        main.HAlabels.append( "Restart" )
-        main.HAdata.append( str( main.restartTime ) )
         main.HA.cleanUp( main )
 
     def CASE14( self, main ):
         """
-        start election app on all onos nodes
+        Start election app on all onos nodes
         """
         main.HA.startElectionApp( main )