[SDFAB-285] Use stern to save a tail of pod logs

 - Only save logs from the test period
 - Fix some typos
 - Check cli connectivity after saving logs, we sometimes timed out

Change-Id: I3f62950f898bef78b6071d94bcfb17ced1a6ca45
diff --git a/TestON/tests/USECASE/SegmentRouting/SRStaging/SRstratumRestart/SRstratumRestart.params b/TestON/tests/USECASE/SegmentRouting/SRStaging/SRstratumRestart/SRstratumRestart.params
index 9db4ffe..b1c57ad 100644
--- a/TestON/tests/USECASE/SegmentRouting/SRStaging/SRstratumRestart/SRstratumRestart.params
+++ b/TestON/tests/USECASE/SegmentRouting/SRStaging/SRstratumRestart/SRstratumRestart.params
@@ -28,6 +28,8 @@
 
     <persistent_setup>True</persistent_setup>
 
+    <use_stern>True</use_stern>
+
     <kubernetes>
         <appName>onos-classic</appName>
         <namespace>tost</namespace>
@@ -59,11 +61,13 @@
     </PERF>
     <ONOS_Logging>
         <org.onosproject.p4runtime.ctl.client>DEBUG</org.onosproject.p4runtime.ctl.client>
+        <org.onosproject.p4runtime.ctl.client.writerequestimpl>TRACE</org.onosproject.p4runtime.ctl.client.writerequestimpl>
         <org.onosproject.segmentrouting>DEBUG</org.onosproject.segmentrouting>
         <org.onosproject.gnmi.ctl>TRACE</org.onosproject.gnmi.ctl>
     </ONOS_Logging>
     <ONOS_Logging_Reset>
         <org.onosproject.p4runtime.ctl.client>INFO</org.onosproject.p4runtime.ctl.client>
+        <org.onosproject.p4runtime.ctl.client.writerequestimpl>INFO</org.onosproject.p4runtime.ctl.client.writerequestimpl>
         <org.onosproject.segmentrouting>DEBUG</org.onosproject.segmentrouting>
         <org.onosproject.gnmi.ctl>INFO</org.onosproject.gnmi.ctl>
     </ONOS_Logging_Reset>