diff --git a/tests/bbsim/Voltha_BBSimTests.robot b/tests/bbsim/Voltha_BBSimTests.robot
index ef185f9..c29b2cc 100755
--- a/tests/bbsim/Voltha_BBSimTests.robot
+++ b/tests/bbsim/Voltha_BBSimTests.robot
@@ -55,6 +55,7 @@
 # we want to make sure you can disable/delete the device without needing to restart BBSim
 ${iteration_count}  2
 
+${suppressaddsubscriber}    True
 
 *** Test Cases ***
 
@@ -175,7 +176,7 @@
     Restart Grpc Server    ${NAMESPACE}    ${bbsim_pod}    5
     Run Keyword If    "${workflow}"=="DT"    Perform Sanity Test DT
     ...    ELSE IF    "${workflow}"=="TT"    Perform Sanity Tests TT
-    ...    ELSE       Perform Sanity Test
+    ...    ELSE       Perform Sanity Test    ${suppressaddsubscriber}
     # wait untill the device is connected again before proceeding
     Sleep   10
 
diff --git a/tests/functional/K8S_SystemTest.robot b/tests/functional/K8S_SystemTest.robot
index 9bdcc85..f04cc3c 100644
--- a/tests/functional/K8S_SystemTest.robot
+++ b/tests/functional/K8S_SystemTest.robot
@@ -40,6 +40,8 @@
 ${teardown_device}      false
 ${has_dataplane}        false
 
+${suppressaddsubscriber}    True
+
 # Per-test logging on failure is turned off by default; set this variable to enable
 ${container_log_dir}    ${None}
 
@@ -72,7 +74,7 @@
     ...    Validate ETCD Size    ${INFRA_NAMESPACE}    ${desired_ETCD_cluster_size}
     # Perform the sanity-test again
     Run Keyword If    ${has_dataplane}    Clean Up Linux
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
+    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test    ${suppressaddsubscriber}
 
 ETCD Failure Test
     [Documentation]    Failure Scenario Test: ETCD Crash
diff --git a/tests/functional/Voltha_FailureScenarios.robot b/tests/functional/Voltha_FailureScenarios.robot
index d7e35ae..1d470fb 100755
--- a/tests/functional/Voltha_FailureScenarios.robot
+++ b/tests/functional/Voltha_FailureScenarios.robot
@@ -54,6 +54,8 @@
 ${teardown_device}    False
 ${scripts}        ../../scripts
 
+${suppressaddsubscriber}    True
+
 # Per-test logging on failure is turned off by default; set this variable to enable
 ${container_log_dir}    ${None}
 
@@ -101,7 +103,7 @@
         ...    Verify UNI Port Is Enabled   ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${src['onu']}
         # Verify EAPOL flows are added for the ONU port
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
-        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}
         # Verify ONU state in voltha
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    360s    5s    Validate Device
         ...    ENABLED    ACTIVE    REACHABLE
@@ -213,7 +215,7 @@
     # TBD: Need for this Sleep
     Sleep    60s
     Run Keyword If    ${has_dataplane}    Clean Up Linux
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
+    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test    ${suppressaddsubscriber}
     ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
     Log    ${podStatusOutput}
     ${countAfterRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
@@ -243,7 +245,8 @@
         ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s
         ...    Get ONU Port in ONOS    ${src['onu']}    ${of_id}    ${src['uni_id']}
         Wait Until Keyword Succeeds    ${timeout}    2s
-        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}
+        ...    ${src['c_tag']}
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
         ...    Validate Authentication After Reassociate    True    ${src['dp_iface_name']}
         ...    ${src['ip']}    ${src['user']}    ${src['pass']}
@@ -290,7 +293,7 @@
         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
         Wait Until Keyword Succeeds    ${timeout}    2s    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}
-        ...    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}    ${src['c_tag']}
         ${wpa_log}=    Run Keyword If    ${has_dataplane}    Catenate    SEPARATOR=.
         ...    /tmp/wpa    ${src['dp_iface_name']}    log
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate Authentication    True
@@ -359,7 +362,7 @@
     ...    app    ${podName}    Running
     # Performing Sanity Test to make sure subscribers are all AUTH+DHCP and pingable
     Run Keyword If    ${has_dataplane}    Clean Up Linux
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
+    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test    ${suppressaddsubscriber}
     ${podStatusOutput}=    Run    kubectl get pods -n ${NAMESPACE}
     Log    ${podStatusOutput}
     ${countAfterRestart}=    Run    kubectl get pods -n ${NAMESPACE} | grep Running | wc -l
@@ -384,7 +387,8 @@
         ...    Verify UNI Port Is Disabled   ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${src['onu']}    ${src['uni_id']}
         # Verify EAPOL flows are present for the ONU port
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
-        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}
+        ...    ${src['c_tag']}
         # Verify ONU in AAA-Users
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2
         ...    Verify ONU in AAA-Users    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${onu_port}
@@ -406,7 +410,7 @@
     ...    Running
     # Performing Sanity Test to make sure subscribers are all AUTH+DHCP and pingable
     Run Keyword If    ${has_dataplane}    Clean Up Linux
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
+    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test    ${suppressaddsubscriber}
     Log to console    Pod ${podName} restarted and sanity checks passed successfully
 
 Check ONU adapter crash not forcing authentication again
@@ -464,7 +468,8 @@
         ...    Verify UNI Port Is Enabled   ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${src['onu']}    ${src['uni_id']}
         # Verify EAPOL flows are added for the ONU port
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
-        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}
+        ...    ${src['c_tag']}
         # Verify ONU state in voltha
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    360s   5s    Validate Device
         ...    ENABLED    ACTIVE    REACHABLE
@@ -526,7 +531,7 @@
         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
         Wait Until Keyword Succeeds    ${timeout}    2s    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}
-        ...    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}
         ${wpa_log}=    Run Keyword If    ${has_dataplane}    Catenate    SEPARATOR=.
         ...    /tmp/wpa    ${src['dp_iface_name']}    log
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate Authentication    True
@@ -659,7 +664,7 @@
         Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device        ENABLED    ACTIVE    REACHABLE
         ...    ${onu_device_id}    onu=True    onu_reason=omci-flows-pushed    by_dev_id=True
         Wait Until Keyword Succeeds    ${timeout}    2s    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}
-        ...    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}
         ${wpa_log}=    Run Keyword If    ${has_dataplane}    Catenate    SEPARATOR=.
         ...    /tmp/wpa    ${src['dp_iface_name']}    log
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate Authentication    True
@@ -716,7 +721,7 @@
         Restart Grpc Server    ${NAMESPACE}    ${bbsim_pod}    5
     END
     # Repeat sanity test without subscriber changes
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test    True
+    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test    ${suppressaddsubscriber}
     # Additional Verification
     Wait Until Keyword Succeeds    ${timeout}    2s    Delete All Devices and Verify
     Setup
@@ -753,7 +758,7 @@
         ...    Verify UNI Port Is Enabled   ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${src['onu']}
         # Verify EAPOL flows are added for the ONU port
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
-        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}
         # Verify ONU state in voltha
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    360s    5s    Validate Device
         ...    ENABLED    ACTIVE    REACHABLE
diff --git a/tests/functional/Voltha_FailureScenarios2.robot b/tests/functional/Voltha_FailureScenarios2.robot
index cc9cfbe..7070ff2 100755
--- a/tests/functional/Voltha_FailureScenarios2.robot
+++ b/tests/functional/Voltha_FailureScenarios2.robot
@@ -116,7 +116,7 @@
         Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device        ENABLED    ACTIVE    REACHABLE
         ...    ${onu_device_id}    onu=True    onu_reason=omci-flows-pushed    by_dev_id=True
         Wait Until Keyword Succeeds    ${timeout}    2s    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}
-        ...    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}
         ${wpa_log}=    Run Keyword If    ${has_dataplane}    Catenate    SEPARATOR=.
         ...    /tmp/wpa    ${src['dp_iface_name']}    log
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate Authentication    True
diff --git a/tests/functional/Voltha_MultiOLT_Tests.robot b/tests/functional/Voltha_MultiOLT_Tests.robot
index c955ff8..7a032c4 100755
--- a/tests/functional/Voltha_MultiOLT_Tests.robot
+++ b/tests/functional/Voltha_MultiOLT_Tests.robot
@@ -107,7 +107,19 @@
     # Waiting extra time for the ONUs to come up
     Sleep    60s
     Run Keyword If    ${has_dataplane}    Clean Up Linux
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
+    FOR    ${J}    IN RANGE    0    ${num_olts}
+        ${olt_serial_number}=    Set Variable    ${list_olts}[${J}][sn]
+        ${onu_count}=    Set Variable    ${list_olts}[${J}][onucount]
+        ${of_id}=    Wait Until Keyword Succeeds    ${timeout}    15s    Validate OLT Device in ONOS
+        ...    ${olt_serial_number}
+        Set Global Variable    ${of_id}
+        ${nni_port}=    Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
+        ...    Get NNI Port in ONOS    ${of_id}
+        Set Global Variable    ${nni_port}
+        ${suppressaddsubscriber}=    Set Variable If    '${J}'=='0'    False    True
+        Perform Sanity Test Per OLT    ${of_id}    ${nni_port}    ${olt_serial_number}   ${onu_count}
+        ...    ${suppressaddsubscriber}
+    END
     # Deleting OLT after test completes
     #Run Keyword If    ${has_dataplane}    Delete All Devices and Verify
 
@@ -165,7 +177,19 @@
     Sleep    60s
     #Check after reboot that ONUs are active, authenticated/DHCP/pingable
     Run Keyword If    ${has_dataplane}    Clean Up Linux
-    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
+    FOR    ${J}    IN RANGE    0    ${num_olts}
+        ${olt_serial_number}=    Set Variable    ${list_olts}[${J}][sn]
+        ${onu_count}=    Set Variable    ${list_olts}[${J}][onucount]
+        ${of_id}=    Wait Until Keyword Succeeds    ${timeout}    15s    Validate OLT Device in ONOS
+        ...    ${olt_serial_number}
+        Set Global Variable    ${of_id}
+        ${nni_port}=    Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
+        ...    Get NNI Port in ONOS    ${of_id}
+        Set Global Variable    ${nni_port}
+        ${suppressaddsubscriber}=    Set Variable If    '${J}'=='0'    False    True
+        Perform Sanity Test Per OLT    ${of_id}    ${nni_port}    ${olt_serial_number}   ${onu_count}
+        ...    ${suppressaddsubscriber}
+    END
 
 
 *** Keywords ***
diff --git a/tests/functional/Voltha_ONOSHATests.robot b/tests/functional/Voltha_ONOSHATests.robot
index 234733c..0100f1e 100644
--- a/tests/functional/Voltha_ONOSHATests.robot
+++ b/tests/functional/Voltha_ONOSHATests.robot
@@ -54,6 +54,8 @@
 ${scripts}        ../../scripts
 ${workflow}    ATT
 
+${suppressaddsubscriber}    True
+
 # Per-test logging on failure is turned off by default; set this variable to enable
 ${container_log_dir}    ${None}
 
@@ -104,6 +106,7 @@
         ${num_onus}=    Set Variable    ${list_olts}[${I}][onucount]
         Run Keyword If   '${workflow}' == 'ATT'    Wait Until Keyword Succeeds    ${timeout}    2s
         ...    Perform Sanity Test Per OLT    ${of_id}    ${nni_port}    ${olt_serial_number}    ${num_onus}
+        ...    ${suppressaddsubscriber}
         Run Keyword If   '${workflow}' == 'DT'    Wait Until Keyword Succeeds    ${timeout}    2s
         ...    Perform Sanity Test DT Per OLT    ${of_id}    ${nni_port}    ${olt_serial_number}    ${num_onus}
     END
diff --git a/tests/functional/Voltha_PODTests.robot b/tests/functional/Voltha_PODTests.robot
index b863740..6871e4f 100755
--- a/tests/functional/Voltha_PODTests.robot
+++ b/tests/functional/Voltha_PODTests.robot
@@ -252,7 +252,7 @@
         ...    ELSE    Sleep    10s
         Enable Device    ${onu_device_id}
         Wait Until Keyword Succeeds    ${timeout}    2s    Verify Eapol Flows Added For ONU    ${ONOS_SSH_IP}
-        ...    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    ${ONOS_SSH_PORT}    ${of_id}    ${onu_port}
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
         ...    Validate Authentication After Reassociate    True
         ...    ${src['dp_iface_name']}    ${src['ip']}    ${src['user']}    ${src['pass']}