diff --git a/Makefile b/Makefile
index 988b88a..569f207 100755
--- a/Makefile
+++ b/Makefile
@@ -288,6 +288,11 @@
 bbsim-failurescenarios-dt: ROBOT_CONFIG_FILE := $(ROBOT_SANITY_DT_SINGLE_PON_FILE)
 bbsim-failurescenarios-dt: voltha-dt-test
 
+bbsim-failurescenarios-tt: ROBOT_MISC_ARGS += -X $(ROBOT_DEBUG_LOG_OPT)
+bbsim-failurescenarios-tt: ROBOT_FILE := Voltha_TT_FailureScenarios.robot
+bbsim-failurescenarios-tt: ROBOT_CONFIG_FILE := $(ROBOT_SANITY_TT_SINGLE_PON_FILE)
+bbsim-failurescenarios-tt: voltha-tt-test
+
 voltha-test: ROBOT_MISC_ARGS += -e notready
 
 voltha-test: vst_venv
diff --git a/libraries/utils.robot b/libraries/utils.robot
index f9f8df0..f19d035 100755
--- a/libraries/utils.robot
+++ b/libraries/utils.robot
@@ -384,7 +384,8 @@
     ...    In all other (common) cases flag has to be set False (default).
     [Arguments]    ${supress_add_subscriber}=False
     Perform Sanity Test TT    ${supress_add_subscriber}
-    Perform Sanity Test TT MCAST    ${supress_add_subscriber}
+    # run of mcast sanity test is currently limited for real HW
+    Run Keyword If    ${has_dataplane}    Perform Sanity Test TT MCAST    ${supress_add_subscriber}
 
 Perform Sanity Test TT
     [Documentation]    This keyword performs Sanity Test Procedure for TT Workflow
diff --git a/tests/openonu-go-adapter/Voltha_ONUReconcileTests.robot b/tests/openonu-go-adapter/Voltha_ONUReconcileTests.robot
index 9b3c80a..441dc6b 100755
--- a/tests/openonu-go-adapter/Voltha_ONUReconcileTests.robot
+++ b/tests/openonu-go-adapter/Voltha_ONUReconcileTests.robot
@@ -265,7 +265,7 @@
     Run Keyword If    ${usekill2restart}    Kill And Check Onu Adaptor    ${namespace}
     ...    ELSE    Restart And Check Onu Adaptor    ${namespace}
     Run Keyword If    "${workflow}"=="DT"    Perform Sanity Test DT
-    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Test TT
+    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Tests TT
     ...    ELSE       Perform Sanity Test
 
 Do Reconcile For Disabled Onu Device
@@ -290,7 +290,7 @@
         Enable Device    ${olt_device_id}
     END
     Run Keyword If    "${workflow}"=="DT"    Perform Sanity Test DT
-    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Test TT
+    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Tests TT
     ...    ELSE       Perform Sanity Test
     Disable Onu Device
     ${alternativeonustates}=  Create List     omci-flows-deleted
@@ -305,7 +305,7 @@
     Wait for all ONU Ports in ONOS Disabled    ${onos_ssh_connection}
     Enable Onu Device
     Run Keyword If    "${workflow}"=="DT"    Perform Sanity Test DT     ${suppressaddsubscriber}
-    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Test TT    ${suppressaddsubscriber}
+    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Tests TT    ${suppressaddsubscriber}
     ...    ELSE       Perform Sanity Test    ${suppressaddsubscriber}
 
 Do Reconcile In Omci-Flows-Pushed
@@ -329,12 +329,12 @@
         Enable Device    ${olt_device_id}
     END
     Run Keyword If    "${workflow}"=="DT"    Perform Sanity Test DT
-    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Test TT
+    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Tests TT
     ...    ELSE       Perform Sanity Test
     Run Keyword If    ${usekill2restart}    Kill And Check Onu Adaptor    ${namespace}
     ...    ELSE    Restart And Check Onu Adaptor    ${namespace}
     Run Keyword If    "${workflow}"=="DT"    Perform Sanity Test DT     ${suppressaddsubscriber}
-    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Test TT    ${suppressaddsubscriber}
+    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Tests TT    ${suppressaddsubscriber}
     ...    ELSE       Perform Sanity Test    ${suppressaddsubscriber}
     Disable Onu Device
     ${alternativeonustates}=  Create List     omci-flows-deleted
@@ -344,5 +344,5 @@
     Wait for all ONU Ports in ONOS Disabled    ${onos_ssh_connection}
     Enable Onu Device
     Run Keyword If    "${workflow}"=="DT"    Perform Sanity Test DT     ${suppressaddsubscriber}
-    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Test TT    ${suppressaddsubscriber}
+    ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Tests TT    ${suppressaddsubscriber}
     ...    ELSE       Perform Sanity Test    ${suppressaddsubscriber}
diff --git a/tests/tt-workflow/Voltha_TT_FailureScenarios.robot b/tests/tt-workflow/Voltha_TT_FailureScenarios.robot
new file mode 100755
index 0000000..88d80bd
--- /dev/null
+++ b/tests/tt-workflow/Voltha_TT_FailureScenarios.robot
@@ -0,0 +1,101 @@
+# Copyright 2021 - present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# FIXME Can we use the same test against BBSim and Hardware?
+
+*** Settings ***
+Documentation     Test various functional end-to-end scenarios for TT workflow
+Suite Setup       Setup Suite
+Test Setup        Setup
+Test Teardown     Teardown
+Suite Teardown    Teardown Suite
+Library           Collections
+Library           String
+Library           OperatingSystem
+Library           XML
+Library           RequestsLibrary
+Library           ../../libraries/DependencyLibrary.py
+Resource          ../../libraries/onos.robot
+Resource          ../../libraries/voltctl.robot
+Resource          ../../libraries/voltha.robot
+Resource          ../../libraries/utils.robot
+Resource          ../../libraries/k8s.robot
+Resource          ../../variables/variables.robot
+Resource          ../../libraries/power_switch.robot
+
+*** Variables ***
+${POD_NAME}       flex-ocp-cord
+${KUBERNETES_CONF}    ${KUBERNETES_CONFIGS_DIR}/${POD_NAME}.conf
+${KUBERNETES_CONFIGS_DIR}    ~/pod-configs/kubernetes-configs
+#${KUBERNETES_CONFIGS_DIR}    ${KUBERNETES_CONFIGS_DIR}/${POD_NAME}.conf
+${KUBERNETES_YAML}    ${KUBERNETES_CONFIGS_DIR}/${POD_NAME}.yml
+${HELM_CHARTS_DIR}    ~/helm-charts
+${VOLTHA_POD_NUM}    8
+${NAMESPACE}      voltha
+# For below variable value, using deployment name as using grep for
+# parsing radius pod name, we can also use full radius pod name
+${RESTART_POD_NAME}    radius
+${timeout}        60s
+${of_id}          0
+${logical_id}     0
+${has_dataplane}    True
+${teardown_device}    False
+${scripts}        ../../scripts
+
+# Per-test logging on failure is turned off by default; set this variable to enable
+${container_log_dir}    ${None}
+
+${suppressaddsubscriber}    True
+
+*** Test Cases ***
+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]    functional   Restart-OpenOnu-TT
+    [Setup]    Start Logging    Restart-OpenOnu-TT
+    [Teardown]    Run Keywords    Collect Logs
+    ...           AND             Stop Logging    Restart-OpenOnu-TT
+    ...           AND             Delete All Devices and Verify
+    # 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
+
+
+*** Keywords ***
+Setup Suite
+    [Documentation]    Set up the test suite
+    Common Test Suite Setup
+    ${switch_type}=    Get Variable Value    ${web_power_switch.type}
+    Run Keyword If  "${switch_type}"!=""    Set Global Variable    ${powerswitch_type}    ${switch_type}
+
+
+Teardown Suite
+    [Documentation]    Tear down steps for the suite
+    Run Keyword If    ${has_dataplane}    Clean Up Linux