[VOL-4328] Added rw-core restart with ping in background scenario for DT and TT,
[VOL-4367] Added voltha control plane functionality verification after pod restart for DT and TT,
and Also updated cord-robot library requirement to version 2.1.7

Change-Id: Ia72a57ad46fbbf0fa2baac416e591c7ecdc350bf
diff --git a/requirements.txt b/requirements.txt
index 9d78f8e..50fcf46 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@
 yamllint==1.23.0
 # replace when we can use upstream (needs python 3.6)
 git+https://github.com/zdw/robotframework-importresource@b81b87aabaee0594e966687b41e3674b866f28ee
-cord-robot==2.1.6
+cord-robot==2.1.7
 virtualenv
 matplotlib>=3.0.3
 requests==2.24.0
@@ -18,4 +18,4 @@
 voltha-protos>=4.2.0
 protobuf>=3.15.7
 protobuf3-to-dict>=0.1.5
-device-management-interface>=0.13.0
\ No newline at end of file
+device-management-interface>=0.13.0
diff --git a/tests/dt-workflow/Voltha_DT_FailureScenarios.robot b/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
index 85055f2..2b6635b 100755
--- a/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
+++ b/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
@@ -186,7 +186,7 @@
 Verify restart openonu-adapter container after subscriber provisioning for DT
     [Documentation]    Restart openonu-adapter container after VOLTHA is operational.
     ...    Prerequisite : ONUs are authenticated and pingable.
-    [Tags]    functionalDt   Restart-OpenOnu-Dt    soak
+    [Tags]    Restart-OpenOnu-Dt    soak
     [Setup]    Start Logging    Restart-OpenOnu-Dt
     [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
     ...           AND             Stop Logging    Restart-OpenOnu-Dt
@@ -216,7 +216,7 @@
 Verify restart openolt-adapter container after subscriber provisioning for DT
     [Documentation]    Restart openolt-adapter container after VOLTHA is operational.
     ...    Prerequisite : ONUs are authenticated and pingable.
-    [Tags]    functionalDt   Restart-OpenOlt-Dt    soak
+    [Tags]    Restart-OpenOlt-Dt    soak
     [Setup]    Start Logging    Restart-OpenOlt-Dt
     [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
     ...           AND             Stop Logging    Restart-OpenOlt-Dt
@@ -243,20 +243,14 @@
     Log to console    Pod ${podName} restarted and sanity checks passed successfully
 
 Verify openolt adapter restart before subscriber provisioning for DT
-    [Documentation]    Deploys an device instance and waits for it to authenticate. After
-    ...    authentication is successful the rw-core deployment is scaled to 0 instances to
-    ...    simulate a POD crash. The test then scales the rw-core back to a single instance
-    ...    and configures ONOS for access. The test succeeds if the device is able to
-    ...    complete the DHCP sequence.
-    [Tags]    functionalDt    olt-adapter-restart-Dt    soak
+    [Documentation]    Restart openolt-adapter container before adding the subscriber.
+    [Tags]    functionalDt    olt-adapter-restart-Dt
     [Setup]    Start Logging    OltAdapterRestart-Dt
-    #...        AND             Clear All Devices Then Create New Device
     [Teardown]   Run Keywords    Run Keyword If    ${logging}    Collect Logs
     ...          AND             Stop Logging    OltAdapterRestart-Dt
-    # Add OLT and perform sanity test
-    #setup
+    # Add OLT device
+    Clear All Devices Then Create New Device
     Run Keyword If    ${has_dataplane}    Clean Up Linux
-    #Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
     Set Global Variable    ${of_id}
 
     FOR    ${I}    IN RANGE    0    ${num_all_onus}
@@ -266,9 +260,9 @@
         ${onu_device_id}=    Get Device ID From SN    ${src['onu']}
         ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s    Get ONU Port in ONOS    ${src['onu']}
         ...    ${of_id}
-        # Bring up the device and verify it authenticates
-        Wait Until Keyword Succeeds    360s    5s    Validate Device        ENABLED    ACTIVE    REACHABLE
-        ...    ${onu_device_id}    onu=True    onu_reason=omci-flows-pushed    by_dev_id=True
+        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    360s    5s
+        ...    Validate Device        ENABLED    ACTIVE    REACHABLE
+        ...    ${onu_device_id}    onu=True    onu_reason=initial-mib-downloaded    by_dev_id=True
     END
     # Scale down the open OLT adapter deployment to 0 PODs and once confirmed, scale it back to 1
     Scale K8s Deployment by Pod Label    ${NAMESPACE}    app    ${OLT_ADAPTER_APP_LABEL}    0
@@ -302,6 +296,9 @@
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s
         ...    Verify Subscriber Access Flows Added For ONU DT    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${of_id}
         ...    ${onu_port}    ${nni_port}    ${src['s_tag']}
+        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device
+        ...    ENABLED    ACTIVE    REACHABLE
+        ...    ${src['onu']}    onu=True    onu_reason=omci-flows-pushed
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate DHCP and Ping    True
         ...    True    ${src['dp_iface_name']}    ${src['s_tag']}    ${src['c_tag']}    ${dst['dp_iface_ip_qinq']}
         ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
@@ -562,11 +559,12 @@
     Run Keyword    Wait Until Keyword Succeeds    ${timeout}    5s    Validate ONU Flows
     ...    ${List_ONU_Serial}    ${onu_flows}
 
-Verify restart openonu-adapter container while continuously running ping in background for DT
+Verify restart openonu-adapter container for DT
     [Documentation]    Restart openonu-adapter container after VOLTHA is operational.
     ...    Run the ping continuously in background during container restart,
     ...    and verify that there should be no affect on the dataplane.
-    [Tags]    functionalDt    RestartOpenOnuPingDt    non-critical
+    ...    Also, verify that the voltha control plane functionality is not affected.
+    [Tags]    functionalDt    RestartOpenOnuPingDt
     [Setup]    Start Logging    RestartOpenOnuPingDt
     [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
     ...           AND             Stop Logging    RestartOpenOnuPingDt
@@ -614,12 +612,15 @@
         ...    ${src['container_type']}    ${src['container_name']}
         Check Ping Result    True    ${ping_output}
     END
+    # Verify Control Plane Functionality by Deleting and Re-adding the Subscriber
+    Verify Control Plane After Pod Restart DT
 
-Verify restart openolt-adapter container while continuously running ping in background for DT
+Verify restart openolt-adapter container for DT
     [Documentation]    Restart openolt-adapter container after VOLTHA is operational.
     ...    Run the ping continuously in background during container restart,
     ...    and verify that there should be no affect on the dataplane.
-    [Tags]    functionalDt    RestartOpenOltPingDt    non-critical
+    ...    Also, verify that the voltha control plane functionality is not affected.
+    [Tags]    functionalDt    RestartOpenOltPingDt
     [Setup]    Start Logging    RestartOpenOltPingDt
     [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
     ...           AND             Stop Logging    RestartOpenOltPingDt
@@ -667,6 +668,67 @@
         ...    ${src['container_type']}    ${src['container_name']}
         Check Ping Result    True    ${ping_output}
     END
+    # Verify Control Plane Functionality by Deleting and Re-adding the Subscriber
+    Verify Control Plane After Pod Restart DT
+
+Verify restart rw-core container for DT
+    [Documentation]    Restart rw-core container after VOLTHA is operational.
+    ...    Run the ping continuously in background during container restart,
+    ...    and verify that there should be no affect on the dataplane.
+    ...    Also, verify that the voltha control plane functionality is not affected.
+    [Tags]    functionalDt    RestartRwCorePingDt
+    [Setup]    Start Logging    RestartRwCorePingDt
+    [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
+    ...           AND             Stop Logging    RestartRwCorePingDt
+    Clear All Devices Then Create New Device
+    # Performing Sanity Test to make sure subscribers are all DHCP and pingable
+    Run Keyword If    ${has_dataplane}    Clean Up Linux
+    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test DT
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${ping_output_file}=    Set Variable    /tmp/${src['onu']}_ping
+        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    60s    2s
+        ...    Run Ping In Background    ${ping_output_file}    ${dst['dp_iface_ip_qinq']}    ${src['dp_iface_name']}
+        ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
+    END
+    ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
+    Log    ${podStatusOutput}
+    ${countBeforeRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
+    ${podName}    Set Variable     rw-core
+    Wait Until Keyword Succeeds    ${timeout}    15s    Delete K8s Pods By Label    ${NAMESPACE}    app    ${podName}
+    Wait Until Keyword Succeeds    ${timeout}    2s    Validate Pods Status By Label    ${NAMESPACE}
+    ...    app    ${podName}    Running
+    # Wait for 1 min after rw-core is restarted
+    Sleep    60s
+    # For some reason scaling down and up the POD behind a service causes the port forward to stop working,
+    # so restart the port forwarding for the API service
+    Restart VOLTHA Port Forward    voltha-api
+    ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
+    Log    ${podStatusOutput}
+    ${countAfterRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
+    Should Be Equal As Strings    ${countAfterRestart}    ${countBeforeRestart}
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    60s    2s
+        ...    Stop Ping Running In Background    ${src['ip']}    ${src['user']}    ${src['pass']}
+        ...    ${src['container_type']}    ${src['container_name']}
+    END
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${ping_output_file}=    Set Variable    /tmp/${src['onu']}_ping
+        ${ping_output}=    Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    60s    2s
+        ...    Retrieve Remote File Contents    ${ping_output_file}    ${src['ip']}    ${src['user']}    ${src['pass']}
+        ...    ${src['container_type']}    ${src['container_name']}
+        Check Ping Result    True    ${ping_output}
+    END
+    # Verify Control Plane Functionality by Deleting and Re-adding the Subscriber
+    Verify Control Plane After Pod Restart DT
 
 *** Keywords ***
 Setup Suite
@@ -687,3 +749,45 @@
     # Execute normal test Setup Keyword
     Setup
 
+Verify Control Plane After Pod Restart DT
+    [Documentation]    Verifies the control plane functionality after the voltha pod restart
+    ...    by deleting and re-adding the subscriber
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${of_id}=    Get ofID From OLT List    ${src['olt']}
+        ${onu_device_id}=    Get Device ID From SN    ${src['onu']}
+        ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s    Get ONU Port in ONOS    ${src['onu']}
+        ...    ${of_id}
+        # Remove Subscriber Access
+        Wait Until Keyword Succeeds    ${timeout}    2s    Execute ONOS CLI Command use single connection    ${ONOS_SSH_IP}
+        ...    ${ONOS_SSH_PORT}    volt-remove-subscriber-access ${of_id} ${onu_port}
+        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    60s    2s
+        ...    Check Ping    False    ${dst['dp_iface_ip_qinq']}    ${src['dp_iface_name']}
+        ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
+        # Disable and Re-Enable the ONU (To replicate DT current workflow)
+        # TODO: Delete and Auto-Discovery Add of ONU (not yet supported)
+        Disable Device    ${onu_device_id}
+        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s
+        ...    Validate Device    DISABLED    UNKNOWN
+        ...    REACHABLE    ${src['onu']}
+        Enable Device    ${onu_device_id}
+        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    360s    5s
+        ...    Validate Device    ENABLED    ACTIVE
+        ...    REACHABLE    ${src['onu']}
+        # Add Subscriber Access
+        Wait Until Keyword Succeeds    ${timeout}    2s    Execute ONOS CLI Command use single connection    ${ONOS_SSH_IP}
+        ...    ${ONOS_SSH_PORT}    volt-add-subscriber-access ${of_id} ${onu_port}
+        # Verify subscriber access flows are added for the ONU port
+        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s
+        ...    Verify Subscriber Access Flows Added For ONU DT    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${of_id}
+        ...    ${onu_port}    ${nni_port}    ${src['s_tag']}
+        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    360s    5s
+        ...    Validate Device    ENABLED    ACTIVE
+        ...    REACHABLE    ${src['onu']}    onu=True    onu_reason=omci-flows-pushed
+        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    60s    2s
+        ...    Check Ping    True    ${dst['dp_iface_ip_qinq']}    ${src['dp_iface_name']}
+        ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
+    END
diff --git a/tests/tt-workflow/Voltha_TT_FailureScenarios.robot b/tests/tt-workflow/Voltha_TT_FailureScenarios.robot
index ec52e55..f1f425e 100755
--- a/tests/tt-workflow/Voltha_TT_FailureScenarios.robot
+++ b/tests/tt-workflow/Voltha_TT_FailureScenarios.robot
@@ -277,36 +277,6 @@
     Run Keyword If    ${has_dataplane}    Clean Up Linux
     Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Tests TT
 
-Verify restart openonu-adapter container after subscriber provisioning for TT
-    [Documentation]    Restart openonu-adapter container after VOLTHA is operational.
-    ...    Prerequisite : ONUs are authenticated and pingable.
-    [Tags]    functionalTT    Restart-OpenOnu-TT
-    [Setup]    Start Logging    Restart-OpenOnu-TT
-    [Teardown]    Run Keywords    Collect Logs
-    ...           AND             Delete All Devices and Verify
-    ...           AND             Collect Logs
-    ...           AND             Stop Logging    Restart-OpenOnu-TT
-    # Add OLT device
-    Setup
-    # Performing Sanity Test to make sure subscribers are all DHCP and pingable
-    Run Keyword If    ${has_dataplane}    Clean Up Linux
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Tests TT
-    ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
-    Log    ${podStatusOutput}
-    ${countBeforeRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
-    ${podName}    Set Variable     adapter-open-onu
-    Wait Until Keyword Succeeds    ${timeout}    15s    Delete K8s Pods By Label    ${NAMESPACE}    app    ${podName}
-    Sleep    5s
-    Wait Until Keyword Succeeds    ${timeout}    2s    Validate Pods Status By Label    ${NAMESPACE}
-    ...    app    ${podName}    Running
-    Wait Until Keyword Succeeds    ${timeout}    3s    Pods Are Ready By Label    ${NAMESPACE}    app    ${podName}
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Tests TT     ${suppressaddsubscriber}
-    ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
-    Log    ${podStatusOutput}
-    ${countAfterRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
-    Should Be Equal As Strings    ${countAfterRestart}    ${countBeforeRestart}
-    Log to console    Pod ${podName} restarted and sanity checks passed successfully
-
 Verify restart openolt-adapter container before subscriber provisioning for TT
     [Documentation]    Restart openolt-adapter container after VOLTHA is operational.
     [Tags]    functionalTT    Restart-OpenOlt-Before-Subscription-TT
@@ -343,31 +313,6 @@
     Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Tests TT
     Log to console    Pod ${podName} restarted and sanity checks passed successfully
 
-Verify restart openolt-adapter container after subscriber provisioning for TT
-    [Documentation]    Restart openolt-adapter container after VOLTHA is operational.
-    [Tags]    functionalTT    Restart-OpenOlt-TT
-    [Setup]    Start Logging    Restart-OpenOlt-TT
-    [Teardown]    Run Keywords    Collect Logs
-    ...           AND             Stop Logging    Restart-OpenOlt-TT
-    Setup
-    Run Keyword If    ${has_dataplane}    Clean Up Linux
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Tests TT
-    ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
-    Log    ${podStatusOutput}
-    ${countBforRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
-    ${podName}    Set Variable     ${OLT_ADAPTER_APP_LABEL}
-    Wait Until Keyword Succeeds    ${timeout}    15s    Delete K8s Pods By Label    ${NAMESPACE}    app    ${podName}
-    Sleep    5s
-    Wait Until Keyword Succeeds    ${timeout}    2s    Validate Pods Status By Label    ${NAMESPACE}
-    ...    app    ${podName}    Running
-    Wait Until Keyword Succeeds    ${timeout}    3s    Pods Are Ready By Label    ${NAMESPACE}    app    ${podName}
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Tests TT    ${suppressaddsubscriber}
-    ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
-    Log    ${podStatusOutput}
-    ${countAfterRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
-    Should Be Equal As Strings    ${countAfterRestart}    ${countBforRestart}
-    Log to console    Pod ${podName} restarted and sanity checks passed successfully
-
 Verify restart ofagent container after subscriber is provisioned for TT
     [Documentation]    Restart ofagent container after VOLTHA is operational.
     [Tags]    functionalTT    ofagentRestart-TT
@@ -481,11 +426,12 @@
     END
     Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Tests TT
 
-Verify restart openonu-adapter container while continuously running ping in background for TT
+Verify restart openonu-adapter container for TT
     [Documentation]    Restart openonu-adapter container after VOLTHA is operational.
     ...    Run the ping continuously in background during container restart,
     ...    and verify that there should be no affect on the dataplane.
-    [Tags]    functionalTT    Restart-OpenOnu-Ping-TT    non-critical
+    ...    Also, verify that the voltha control plane functionality is not affected.
+    [Tags]    functionalTT    Restart-OpenOnu-Ping-TT
     [Setup]    Start Logging    Restart-OpenOnu-Ping-TT
     [Teardown]    Run Keywords    Collect Logs
     ...           AND             Stop Logging    Restart-OpenOnu-Ping-TT
@@ -539,12 +485,15 @@
         ...    ${src['container_type']}    ${src['container_name']}
         Check Ping Result    True    ${ping_output}
     END
+    # Verify Control Plane Functionality by Deleting and Re-adding the Subscriber
+    Verify Control Plane After Pod Restart TT
 
-Verify restart openolt-adapter container while continuously running ping in background for TT
+Verify restart openolt-adapter container for TT
     [Documentation]    Restart openolt-adapter container after VOLTHA is operational.
     ...    Run the ping continuously in background during container restart,
     ...    and verify that there should be no affect on the dataplane.
-    [Tags]    functionalTT    Restart-OpenOlt-Ping-TT    non-critical
+    ...    Also, verify that the voltha control plane functionality is not affected.
+    [Tags]    functionalTT    Restart-OpenOlt-Ping-TT
     [Setup]    Start Logging    Restart-OpenOlt-Ping-TT
     [Teardown]    Run Keywords    Collect Logs
     ...           AND             Stop Logging    Restart-OpenOlt-Ping-TT
@@ -598,6 +547,73 @@
         ...    ${src['container_type']}    ${src['container_name']}
         Check Ping Result    True    ${ping_output}
     END
+    # Verify Control Plane Functionality by Deleting and Re-adding the Subscriber
+    Verify Control Plane After Pod Restart TT
+
+Verify restart rw-core container for TT
+    [Documentation]    Restart rw-core container after VOLTHA is operational.
+    ...    Run the ping continuously in background during container restart,
+    ...    and verify that there should be no affect on the dataplane.
+    ...    Also, verify that the voltha control plane functionality is not affected.
+    [Tags]    functionalTT    Restart-RwCore-Ping-TT
+    [Setup]    Start Logging    Restart-RwCore-Ping-TT
+    [Teardown]    Run Keywords    Collect Logs
+    ...           AND             Stop Logging    Restart-RwCore-Ping-TT
+    Clear All Devices Then Create New Device
+    # Performing Sanity Test to make sure subscribers are all DHCP and pingable
+    Run Keyword If    ${has_dataplane}    Clean Up Linux
+    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test TT
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${service_type}=    Get Variable Value    ${src['service_type']}    "null"
+        Continue For Loop If    '${service_type}' == 'mcast'
+        ${ping_output_file}=    Set Variable    /tmp/${src['onu']}_${service_type}_ping
+        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    60s    2s
+        ...    Run Ping In Background    ${ping_output_file}    ${dst['dp_iface_ip_qinq']}    ${src['dp_iface_name']}
+        ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
+    END
+    ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
+    Log    ${podStatusOutput}
+    ${countBeforeRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
+    ${podName}    Set Variable     rw-core
+    Wait Until Keyword Succeeds    ${timeout}    15s    Delete K8s Pods By Label    ${NAMESPACE}    app    ${podName}
+    Sleep    5s
+    Wait Until Keyword Succeeds    ${timeout}    2s    Validate Pods Status By Label    ${NAMESPACE}
+    ...    app    ${podName}    Running
+    Wait Until Keyword Succeeds    ${timeout}    3s    Pods Are Ready By Label    ${NAMESPACE}    app    ${podName}
+    # For some reason scaling down and up the POD behind a service causes the port forward to stop working,
+    # so restart the port forwarding for the API service
+    Restart VOLTHA Port Forward    voltha-api
+    ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
+    Log    ${podStatusOutput}
+    ${countAfterRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
+    Should Be Equal As Strings    ${countAfterRestart}    ${countBeforeRestart}
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${service_type}=    Get Variable Value    ${src['service_type']}    "null"
+        Continue For Loop If    '${service_type}' == 'mcast'
+        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    60s    2s
+        ...    Stop Ping Running In Background    ${src['ip']}    ${src['user']}    ${src['pass']}
+        ...    ${src['container_type']}    ${src['container_name']}
+    END
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${service_type}=    Get Variable Value    ${src['service_type']}    "null"
+        Continue For Loop If    '${service_type}' == 'mcast'
+        ${ping_output_file}=    Set Variable    /tmp/${src['onu']}_${service_type}_ping
+        ${ping_output}=    Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    60s    2s
+        ...    Retrieve Remote File Contents    ${ping_output_file}    ${src['ip']}    ${src['user']}    ${src['pass']}
+        ...    ${src['container_type']}    ${src['container_name']}
+        Check Ping Result    True    ${ping_output}
+    END
+    # Verify Control Plane Functionality by Deleting and Re-adding the Subscriber
+    Verify Control Plane After Pod Restart TT
 
 *** Keywords ***
 Setup Suite
@@ -618,3 +634,35 @@
     Delete All Devices and Verify
     # Execute normal test Setup Keyword
     Setup
+
+Verify Control Plane After Pod Restart TT
+    [Documentation]    Verifies the control plane functionality after the voltha pod restart
+    ...    by deleting and re-adding the subscriber
+    Run Keyword If    ${has_dataplane}    Clean Up Linux
+    FOR   ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${service_type}=    Get Variable Value    ${src['service_type']}    "null"
+        ${of_id}=    Get ofID From OLT List    ${src['olt']}
+        ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s    Get ONU Port in ONOS    ${src['onu']}
+        ...    ${of_id}    ${src['uni_id']}
+        # Remove Subscriber Access
+        Wait Until Keyword Succeeds    ${timeout}    2s    Execute ONOS CLI Command use single connection    ${ONOS_SSH_IP}
+        ...    ${ONOS_SSH_PORT}    volt-remove-subscriber-access ${of_id} ${onu_port}
+        Run Keyword If    ${has_dataplane} and '${service_type}' != 'mcast'
+        ...    Wait Until Keyword Succeeds    ${timeout}    2s
+        ...    Check Ping    False    ${dst['dp_iface_ip_qinq']}    ${src['dp_iface_name']}
+        ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
+        # Add Subscriber Access
+        Wait Until Keyword Succeeds    ${timeout}    2s    Execute ONOS CLI Command use single connection    ${ONOS_SSH_IP}
+        ...    ${ONOS_SSH_PORT}    volt-add-subscriber-access ${of_id} ${onu_port}
+        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    360s    5s
+        ...    Validate Device    ENABLED    ACTIVE
+        ...    REACHABLE    ${src['onu']}    onu=True    onu_reason=omci-flows-pushed
+        Run Keyword If    ${has_dataplane} and '${service_type}' != 'mcast'    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    ${timeout}    2s    Sanity Test TT one ONU    ${src}
+        ...    ${dst}    ${suppressaddsubscriber}
+        ...    ELSE IF    ${has_dataplane} and '${service_type}' == 'mcast'    Run Keyword And Continue On Failure
+        ...    Wait Until Keyword Succeeds    ${timeout}    2s    Sanity Test TT MCAST one ONU    ${src}
+        ...    ${dst}    ${suppressaddsubscriber}
+    END