diff --git a/libraries/utils.robot b/libraries/utils.robot
index cc3a4d7..115957a 100755
--- a/libraries/utils.robot
+++ b/libraries/utils.robot
@@ -386,6 +386,17 @@
     # run of mcast sanity test is currently limited for real HW
     Run Keyword If    ${has_dataplane}    Perform Sanity Test TT MCAST    ${supress_add_subscriber}
 
+Provision Subscription TT
+    [Documentation]    Provision Subscription TT
+    [Arguments]    ${supress_add_subscriber}=False
+    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    ${src['service_type']}    "null"
+        Run Keyword IF    '${service_type}' != 'mcast'    Provision Subscription for ONU TT    ${src}    ${dst}
+        ...    ${supress_add_subscriber}
+    END
+
 Perform Sanity Test TT
     [Documentation]    This keyword performs Sanity Test Procedure for TT Workflow
     ...    Sanity test performs dhcp and pings (without EAPOL and DHCP flows) for all the ONUs given for the POD
@@ -441,10 +452,9 @@
         # ...    ${List_ONU_Serial}    ${onu_flows}
     END
 
-Sanity Test TT one ONU
-    [Documentation]    This keyword performs sanity test for a single ONU for TT workflow
+Provision Subscription for ONU TT
+    [Documentation]    This keyword performs provision services a single ONU for TT workflow
     ...       Tests for one ONU
-    ...       Assertions apply to HSIA, VoD, VoIP services
     ...       For repeating sanity test without subscriber changes set flag supress_add_subscriber=True.
     ...       In all other (common) cases flag has to be set False (default).
     [Arguments]    ${src}    ${dst}    ${supress_add_subscriber}=False
@@ -467,6 +477,19 @@
     Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device
     ...    ENABLED    ACTIVE    REACHABLE
     ...    ${src['onu']}    onu=True    onu_reason=${onu_reasons}
+
+Sanity Test TT one ONU
+    [Documentation]    This keyword performs sanity test for a single ONU for TT workflow
+    ...       Tests for one ONU
+    ...       Assertions apply to HSIA, VoD, VoIP services
+    ...       For repeating sanity test without subscriber changes set flag supress_add_subscriber=True.
+    ...       In all other (common) cases flag has to be set False (default).
+    [Arguments]    ${src}    ${dst}    ${supress_add_subscriber}=False
+    Provision Subscription for ONU TT    ${src}    ${dst}    ${supress_add_subscriber}
+    ${of_id}=    Wait Until Keyword Succeeds    ${timeout}    15s    Validate OLT Device in ONOS    ${src['olt']}
+    Set Global Variable    ${of_id}
+    ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s    Get ONU Port in ONOS    ${src['onu']}
+    ...    ${of_id}    ${src['uni_id']}
     # TODO: Yet to Verify on the GPON based Physical POD (VOL-2652)
     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']}
diff --git a/tests/data/flex-ocp-cord-multi-uni-TT-multicast-tests-input.yaml b/tests/data/flex-ocp-cord-multi-uni-TT-multicast-tests-input.yaml
new file mode 100644
index 0000000..a394ee4
--- /dev/null
+++ b/tests/data/flex-ocp-cord-multi-uni-TT-multicast-tests-input.yaml
@@ -0,0 +1,31 @@
+# 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.
+
+# Automated multicast tests input configuration for Flex POD 1
+
+---
+
+multicast_test_onu_pon_locations:
+  pon_0:
+    -
+      onu_1: 'ALPHe3d1cea3'
+      onu_2: 'ALPHe3d1ceb7'
+  pon_1:
+    -
+      onu_1: 'ALPHe3d1cfa7'
+
+multicast_ip_addresses:
+  -
+    channel_1: '225.22.0.1'
+    channel_2: '225.22.0.2'
diff --git a/tests/tt-workflow/Voltha_TT_MulticastTests.robot b/tests/tt-workflow/Voltha_TT_MulticastTests.robot
new file mode 100644
index 0000000..fbdca15
--- /dev/null
+++ b/tests/tt-workflow/Voltha_TT_MulticastTests.robot
@@ -0,0 +1,249 @@
+# Copyright 2017 - 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
+${NAMESPACE}      voltha
+${INFRA_NAMESPACE}      default
+# 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}    True
+${scripts}        ../../scripts
+
+# Per-test logging on failure is turned off by default; set this variable to enable
+${container_log_dir}    ${None}
+
+# logging flag to enable Collect Logs, can be passed via the command line too
+# example: -v logging:False
+${logging}    True
+
+${suppressaddsubscriber}    True
+
+*** Test Cases ***
+2 RG Same ONU Same Channel Multicast Test
+    [Documentation]    Verify that 2 RG which are connected to the same ONU could join the same channel.
+    [Tags]    functionalTT    2RGSameOnuSameChannel    multicastTT
+    [Setup]    Start Logging    2RGSameOnuSameChannel
+    [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
+    ...           AND             Stop Logging    2RGSameOnuSameChannel
+    ${test_onus_pon0}=    Set Variable    ${multicast_test_onu_pon_locations.pon_0[0]}
+    ${test_onu1_sn}=    Set Variable    ${test_onus_pon0['onu_1']}
+    ${test_onu1_uni}=    Set Variable    1
+    ${test_onu2_sn}=    Set Variable    ${test_onus_pon0['onu_1']}
+    ${test_onu2_uni}=    Set Variable    2
+    ${channel_ip_list}=    Set Variable    ${multicast_ip_addresses[0]}
+    ${channel_ip_1}=    Set Variable    ${channel_ip_list['channel_1']}
+    ${channel_ip_2}=    Set Variable    ${channel_ip_list['channel_2']}
+    ${matched}    ${src_onu1}    ${dst_onu1}=    Get ONU details with Given Sn and Service and UNI    ${test_onu1_sn}    mcast
+    ...    ${test_onu1_uni}
+    ${matched}    ${src_onu2}    ${dst_onu2}=    Get ONU details with Given Sn and Service and UNI    ${test_onu2_sn}    mcast
+    ...    ${test_onu2_uni}
+    Wait Until Keyword Succeeds    ${timeout}    15    TT 2 RG MCAST Test    ${src_onu1}    ${dst_onu1}
+    ...    ${channel_ip_1}    ${src_onu2}    ${dst_onu2}    ${channel_ip_1}
+
+*** Keywords ***
+Get ONU details with Given Sn and Service and UNI
+    [Documentation]    This keyword finds the ONU details (as required for multicast test)
+    ...    with given serial number, service type and UNI
+    [Arguments]    ${onu_sn}    ${service_type}    ${uni}
+    ${matched}=    Set Variable    False
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${service}=    Get Variable Value    ${src['service_type']}    "null"
+        ${onu}=    Get Variable Value    ${src['onu']}    "null"
+        ${uni_id}=    Get Variable Value    ${src['uni_id']}    "null"
+        Continue For Loop If    '${onu}' != '${onu_sn}' or '${service}' != '${service_type}'
+        ${matched}=    Set Variable If
+        ...    '${onu}' == '${onu_sn}' and '${service}' == '${service_type}' and '${uni}' == '${uni_id}'
+        ...    True    False
+        Exit For Loop If    ${matched}
+    END
+    [Return]    ${matched}    ${src}    ${dst}
+
+
+TT 2 RG MCAST Test
+    [Documentation]    This keyword performs MCAST two RG at the Same Time for TT workflow
+    [Arguments]    ${src_rg1}    ${dst_rg1}    ${channel_ip_rg1}    ${src_rg2}    ${dst_rg2}    ${channel_ip_rg2}
+    # Check for iperf and jq tools RG1
+    ${stdout}    ${stderr}    ${rc}=    Execute Remote Command    which iperf jq
+    ...    ${src_rg1['ip']}    ${src_rg1['user']}    ${src_rg1['pass']}    ${src_rg1['container_type']}
+    ...    ${src_rg1['container_name']}
+    Pass Execution If    ${rc} != 0    Skipping test: iperf / jq not found on the RG
+
+    # Check for iperf and jq tools RG2
+    ${stdout}    ${stderr}    ${rc}=    Execute Remote Command    which iperf jq
+    ...    ${src_rg2['ip']}    ${src_rg2['user']}    ${src_rg2['pass']}    ${src_rg2['container_type']}
+    ...    ${src_rg2['container_name']}
+    Pass Execution If    ${rc} != 0    Skipping test: iperf / jq not found on the RG
+
+    #Reset the IP on the interface RG1
+    ${output}=    Login And Run Command On Remote System    sudo ifconfig ${src_rg1['dp_iface_name']} 0
+    ...    ${src_rg1['ip']}    ${src_rg1['user']}    ${src_rg1['pass']}    ${src_rg1['container_type']}
+    ...    ${src_rg1['container_name']}
+    # Kill iperf  on BNG
+    ${rg_output}=    Run Keyword and Continue On Failure    Login And Run Command On Remote System
+    ...    sudo kill -9 `pidof iperf`
+    ...    ${dst_rg1['bng_ip']}    ${dst_rg1['bng_user']}    ${dst_rg1['bng_pass']}    ${dst_rg1['container_type']}
+    ...    ${dst_rg1['container_name']}
+
+    #Reset the IP on the interface RG2
+    ${output}=    Login And Run Command On Remote System    sudo ifconfig ${src_rg1['dp_iface_name']} 0
+    ...    ${src_rg2['ip']}    ${src_rg2['user']}    ${src_rg2['pass']}    ${src_rg2['container_type']}
+    ...    ${src_rg2['container_name']}
+    # Kill iperf  on BNG
+    ${rg_output}=    Run Keyword and Continue On Failure    Login And Run Command On Remote System
+    ...    sudo kill -9 `pidof iperf`
+    ...    ${dst_rg2['bng_ip']}    ${dst_rg2['bng_user']}    ${dst_rg2['bng_pass']}    ${dst_rg2['container_type']}
+    ...    ${dst_rg2['container_name']}
+
+    # Setup RG1 for Multi-cast test
+    ${output}=    Login And Run Command On Remote System
+    ...    sudo ifconfig ${src_rg1['dp_iface_name']} ${src_rg1['mcast_rg']} up ; sudo kill -9 `pidof iperf`
+    ...    ${src_rg1['ip']}    ${src_rg1['user']}    ${src_rg1['pass']}    ${src_rg1['container_type']}
+    ...    ${src_rg1['container_name']}
+    ${output}=    Login And Run Command On Remote System
+    ...    sudo ip route add ${src_rg1['mcast_grp_subnet_mask']} dev ${src_rg1['dp_iface_name']} scope link
+    ...    ${src_rg1['ip']}    ${src_rg1['user']}    ${src_rg1['pass']}    ${src_rg1['container_type']}
+    ...    ${src_rg1['container_name']}
+
+    # Setup RG2 for Multi-cast test
+    ${output}=    Login And Run Command On Remote System
+    ...    sudo ifconfig ${src_rg2['dp_iface_name']} ${src_rg2['mcast_rg']} up ; sudo kill -9 `pidof iperf`
+    ...    ${src_rg2['ip']}    ${src_rg2['user']}    ${src_rg2['pass']}    ${src_rg2['container_type']}
+    ...    ${src_rg2['container_name']}
+    ${output}=    Login And Run Command On Remote System
+    ...    sudo ip route add ${src_rg2['mcast_grp_subnet_mask']} dev ${src_rg2['dp_iface_name']} scope link
+    ...    ${src_rg2['ip']}    ${src_rg2['user']}    ${src_rg2['pass']}    ${src_rg2['container_type']}
+    ...    ${src_rg2['container_name']}
+
+    # Setup iperf on the BNG
+    ${server_output}=    Run Keyword If    '${channel_ip_rg1}'=='${channel_ip_rg2}'
+    ...    Login And Run Command On Remote System    sudo iperf -c '${channel_ip_rg1}' -u -T 32 -t 60 -i 1 &
+    ...    ${dst_rg1['bng_ip']}    ${dst_rg1['bng_user']}    ${dst_rg1['bng_pass']}    ${dst_rg1['container_type']}
+    ...    ${dst_rg1['container_name']}
+    ...    ELSE    Run Keywords    Run Keyword And Continue On Failure
+    ...    Login And Run Command On Remote System    sudo iperf -c '${channel_ip_rg1}' -u -T 32 -t 60 -i 1 &
+    ...    ${dst_rg1['bng_ip']}    ${dst_rg1['bng_user']}    ${dst_rg1['bng_pass']}    ${dst_rg1['container_type']}
+    ...    ${dst_rg1['container_name']}     AND    Run Keyword And Continue On Failure
+    ...    Login And Run Command On Remote System    sudo iperf -c '${channel_ip_rg2}' -u -T 32 -t 60 -i 1 &
+    ...    ${dst_rg2['bng_ip']}    ${dst_rg2['bng_user']}    ${dst_rg2['bng_pass']}    ${dst_rg2['container_type']}
+    ...    ${dst_rg2['container_name']}
+
+    # Setup iperf on the RG1
+    ${rg_output_rg1}=    Run Keyword and Continue On Failure    Wait Until Keyword Succeeds     90s    5s
+    ...    Login And Run Command On Remote System
+    ...    rm -rf /tmp/rg_output ; sudo iperf -s -u -B '${channel_ip_rg1}' -i 1 -D >> /tmp/rg_output
+    ...    ${src_rg1['ip']}    ${src_rg1['user']}    ${src_rg1['pass']}    ${src_rg1['container_type']}
+    ...    ${src_rg1['container_name']}
+
+    # Setup iperf on the RG2
+    ${rg_output_rg2}=    Run Keyword and Continue On Failure    Wait Until Keyword Succeeds     90s    5s
+    ...    Login And Run Command On Remote System
+    ...    rm -rf /tmp/rg_output ; sudo iperf -s -u -B '${channel_ip_rg2}' -i 1 -D >> /tmp/rg_output
+    ...    ${src_rg2['ip']}    ${src_rg2['user']}    ${src_rg2['pass']}    ${src_rg2['container_type']}
+    ...    ${src_rg2['container_name']}
+
+    #Logging Outputs and Check iperf UDP Stream Outputs
+    Log    ${rg_output_rg1}
+    Log    ${rg_output_rg2}
+    Sleep    60s
+    ${output}=    Run Keyword and Continue On Failure     Wait Until Keyword Succeeds     90s    5s
+    ...    Login And Run Command On Remote System
+    ...    cat /tmp/rg_output | grep KBytes
+    ...    ${src_rg1['ip']}    ${src_rg1['user']}    ${src_rg1['pass']}    ${src_rg1['container_type']}
+    ...    ${src_rg1['container_name']}
+    Log    ${output}
+    Should Contain    ${output}    KBytes
+    ${output}=    Run Keyword and Continue On Failure     Wait Until Keyword Succeeds     90s    5s
+    ...    Login And Run Command On Remote System
+    ...    cat /tmp/rg_output | grep KBytes
+    ...    ${src_rg2['ip']}    ${src_rg2['user']}    ${src_rg2['pass']}    ${src_rg2['container_type']}
+    ...    ${src_rg2['container_name']}
+    Log    ${output}
+    Should Contain    ${output}    KBytes
+
+    # Kill iperf  on BNG
+    ${rg_output}=    Run Keyword and Continue On Failure    Login And Run Command On Remote System
+    ...    sudo kill -9 `pidof iperf`
+    ...    ${dst_rg1['bng_ip']}    ${dst_rg1['bng_user']}    ${dst_rg1['bng_pass']}    ${dst_rg1['container_type']}
+    ...    ${dst_rg1['container_name']}
+
+    # Kill iperf on the RG1
+    ${output}=    Run Keyword and Continue On Failure    Login And Run Command On Remote System
+    ...    sudo kill -9 `pidof iperf`
+    ...    ${src_rg1['ip']}    ${src_rg1['user']}    ${src_rg1['pass']}    ${src_rg1['container_type']}
+    ...    ${src_rg1['container_name']}
+
+    # Kill iperf on the RG2
+    ${output}=    Run Keyword and Continue On Failure    Login And Run Command On Remote System
+    ...    sudo kill -9 `pidof iperf`
+    ...    ${src_rg2['ip']}    ${src_rg2['user']}    ${src_rg2['pass']}    ${src_rg2['container_type']}
+    ...    ${src_rg2['container_name']}
+
+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}
+    Run Keyword If    ${has_dataplane}    Clean Up Linux
+    Run Keyword    Setup
+    Wait Until Keyword Succeeds    ${timeout}    2s    Provision Subscription TT
+
+
+
+Clear All Devices Then Create New Device
+    [Documentation]    Remove any devices from VOLTHA and ONOS
+    # Remove all devices from voltha and nos
+    Delete All Devices and Verify
+    # Execute normal test Setup Keyword
+    Setup
+
+Teardown Suite
+    [Documentation]    Tear down steps for the suite
+    Run Keyword If    ${has_dataplane}    Clean Up Linux
+    Run Keyword If    ${teardown_device}    Delete All Devices And Verify
+    Close All ONOS SSH Connections